start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=125 end-page=126 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2016年 環境理工学部 博士論文 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=表紙 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=目次 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=1 end-page=28 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Tourism Inventory of Okayama Prefecture: An Analysis on Main Sightseeing Spots in terms of the Number of Tourists en-subtitle= kn-subtitle= en-abstract= kn-abstract= At the early stage of this paper, Okayama prefecture was analyzed by the author focusing on the tendency of main sightseeing-areas based on the number of tourists for three decades (Ichiminami, 2002). In this study, the main sightseeing spots in Okayama pref. are also examined and the developments are explained in a more detailed and updated perspective by extending over current features and the number of tourists. One of the important reasons in a significant increase in tourists in Okayama is the opening of the highways, the bullet train and cross-linking of the Seto Ohashi Bridge. At the same time, there are some waves in the increase or decrease of the tourist trends appearing from several vital developments such as environmental, climatic, social, economic and spatial. In this regard, research objectives of the study are mainly based on investigating and making a comprehensive study on main sightseeing spots in Okayama pref. to find new tourism values and to provide a tourism inventory of Okayama pref. by means of information, data and clues from the field in/between the tourist destinations such as hotel guests, gardens and castles. Therefore, Okayama pref. has a rich potential of historical and cultural heritage in terms of spatial planning and growth. The important point is that the structural adaptation between historical and cultural assets and the city life should be provided and protected for domestic and foreign tourism as much as creating better futures in health tourism, gastronomy tourism, cultural tourism, belief tourism, congress tourism, thematic tourism and local tourism. en-copyright= kn-copyright= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=Meltem Okur D?NCSOY en-aut-sei=Meltem Okur D?NCSOY en-aut-mei= kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=Enver Erdinc D?NCSOY en-aut-sei=Enver Erdinc D?NCSOY en-aut-mei= kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil=Faculty of Environmental Science and Technology, Okayama University kn-affil=岡山大学 affil-num=2 en-affil=Faculty of Economics and Administrative Sciences, Trakya Universit kn-affil= affil-num=3 en-affil=Department of Banking, School of Applied Sciences, Trakya University kn-affil= en-keyword=tourists kn-keyword=tourists en-keyword=sightseeing spots kn-keyword=sightseeing spots en-keyword=tourism inventory kn-keyword=tourism inventory en-keyword=Okayama prefecture kn-keyword=Okayama prefecture END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=29 end-page=54 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Changing Food Production based on Agricultural Enterprises in Tottori Prefecture kn-title=経営部門からみた鳥取県の食料生産の変貌 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The study aims to explain the main features of food production in Tottori prefecture focusing on agricultural enterprises. First, the number of farmers and farm households, the area of cultivated land, and their spatial distribution were analyzed. Then, the production trend on rice, livestock, vegetables such as watermelon and leek, and pears was surveyed. Furthermore, by overlooking the features of each enterprise, food production as a regional agriculture was briefly examined. Farm management in Tottori pref. has long been a small scale selfsufficiency property, but has gradually decayed or specialized. Because agricultural workers are continuously decreasing and aging, farming in Tottori pref. should pay attention to the demand of world food while publicizing a process on food production and farmmanagement carefully. en-copyright= kn-copyright= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=1 ORCID= affil-num=1 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 en-keyword=food production kn-keyword=food production en-keyword=enterprise kn-keyword=enterprise en-keyword=vegetables kn-keyword=vegetables en-keyword=pears kn-keyword=pears en-keyword=Tottori prefecture kn-keyword=Tottori prefecture END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=55 end-page=59 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Method for predicting minimum air temperature in the next morning using local meteorological observation data - Improvement on minimum air temperature forecasting system utilizing the Internet - kn-title=現地気象観測データを用いた最低気温予測方法とその精度―インターネットを利用した最低気温予報システムの改良― en-subtitle= kn-subtitle= en-abstract= kn-abstract=We have developed a minimum air temperature forecasting system using local meteorological observation data in order to prevent or mitigate the frost damage. In this paper, the correlation between the meteorological factors and the decrease in air temperature during the night was shown. Then minimum air temperature was predicted by the multiple regression equation that uses air temperature and humidity at 18:00 as explanatory variables. As the result, the root mean square error (RMSE) was 2.8°C. When the difference of air temperature between 17:00 and 18:00 was used for the prediction instead of humidity, the RMSE was 3.5°C. Next, the prediction was carried out only in clear nights, then the equation that use air temperature and humidity at 18:00 showed that the RMSE was 1.3°C. Although the predictive accuracy of the equations for clear nights is low on cloudy or rainy nights, we can forecast safely on frosty nights by using those equations in combination with the equations for all nights. en-copyright= kn-copyright= en-aut-name=UedaYu en-aut-sei=Ueda en-aut-mei=Yu kn-aut-name=上田悠生 kn-aut-sei=上田 kn-aut-mei=悠生 aut-affil-num=1 ORCID= en-aut-name=MishimaTakuya en-aut-sei=Mishima en-aut-mei=Takuya kn-aut-name=三島拓也 kn-aut-sei=三島 kn-aut-mei=拓也 aut-affil-num=2 ORCID= en-aut-name=MiuraTakeshi en-aut-sei=Miura en-aut-mei=Takeshi kn-aut-name=三浦健志 kn-aut-sei=三浦 kn-aut-mei=健志 aut-affil-num=3 ORCID= en-aut-name=MoroizumiToshitsugu en-aut-sei=Moroizumi en-aut-mei=Toshitsugu kn-aut-name=諸泉利嗣 kn-aut-sei=諸泉 kn-aut-mei=利嗣 aut-affil-num=4 ORCID= affil-num=1 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=2 en-affil= kn-affil=エイト日本技術開発株式会社 affil-num=3 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=4 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 en-keyword=Minimum air temperature kn-keyword=Minimum air temperature en-keyword=prediction kn-keyword=prediction en-keyword=frost damage kn-keyword=frost damage en-keyword=IT kn-keyword=IT en-keyword=multiple regression analysis kn-keyword=multiple regression analysis END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=61 end-page=64 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Evaluation of drop in official air temperature record at Okayama caused by relocation of observation field of Okayama Local Meteorological Observatory - By comparison with records observed at surrounding points - kn-title=岡山地方気象台観測露場移転による気温低下量の推定 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Statistical change in official temperature records at Okayama City caused by relocation of meteorological observation field of Meteorological Agency was evaluated. The observation field of Okayama local meteorological observatory was moved to the Tsushima Campus of Okayama University from the downtown area of Okayama City in March, 2015. Comparison between the air temperature records measured at meteorological agency station and the records at Tanjo Pond in Tsushima Campus, showed 0.56 ℃ drop in annual average before and after relocation. Moreover, comparison between the records of Okayama local meteorological observatory and that at the surrounding meteorological observing 9 stations showed 0.55 ℃ drop in annual average. Those results suggest that the relocation dropped annual average of air temperature by about 0.6 ℃. en-copyright= kn-copyright= en-aut-name=MiuraTakeshi en-aut-sei=Miura en-aut-mei=Takeshi kn-aut-name=三浦健志 kn-aut-sei=三浦 kn-aut-mei=健志 aut-affil-num=1 ORCID= en-aut-name=UedaYu en-aut-sei=Ueda en-aut-mei=Yu kn-aut-name=上田悠生 kn-aut-sei=上田 kn-aut-mei=悠生 aut-affil-num=2 ORCID= en-aut-name=MoritaHidenori en-aut-sei=Morita en-aut-mei=Hidenori kn-aut-name=守田秀則 kn-aut-sei=守田 kn-aut-mei=秀則 aut-affil-num=3 ORCID= en-aut-name=ChikamoriHidetaka en-aut-sei=Chikamori en-aut-mei=Hidetaka kn-aut-name=近森秀高 kn-aut-sei=近森 kn-aut-mei=秀高 aut-affil-num=4 ORCID= en-aut-name=KurokawaMasahiro en-aut-sei=Kurokawa en-aut-mei=Masahiro kn-aut-name=黒川正宏 kn-aut-sei=黒川 kn-aut-mei=正宏 aut-affil-num=5 ORCID= en-aut-name=NakashimaYoshitaka en-aut-sei=Nakashima en-aut-mei=Yoshitaka kn-aut-name=中嶋佳貴 kn-aut-sei=中嶋 kn-aut-mei=佳貴 aut-affil-num=6 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=7 ORCID= affil-num=1 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=2 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=3 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=4 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=5 en-affil= kn-affil=岡山大学環境理工学部 affil-num=6 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=7 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 en-keyword=Okayama Local Meteorological Observatory kn-keyword=Okayama Local Meteorological Observatory en-keyword=relocation kn-keyword=relocation en-keyword=drop in air temperature kn-keyword=drop in air temperature END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=65 end-page=71 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Geospatial Preference for Asparagus Fields in Thailand kn-title=タイのアスパラガス産地における圃場の選好条件 en-subtitle= kn-subtitle= en-abstract= kn-abstract=A questionnaire survey by interview to the farmhouse in Nakhon Pathom Province in Thailand had been carried out, where the asparagus farming as the cash crop have spread rapidly. Valid response from 24 farmers were obtained and Asparagus had been planted in 30 plots within 74 plots (40.5%). As the result of statistical analysis on the geospatial preference for asparagus fields by logit model in which the geospatial characteristics of plots such as elevation, slope, curvature, acreage and distance from farmhouse were adapted as the explanatory variables while the category of the cultivated crops in there was adapted as the independent variable, it became clear that as for the asparagus plots, small lots were more preferred. On the other hand, the geospatial preference for asparagus plots such as elevation, slope, curvature and distance from farmhouse did not became clear. en-copyright= kn-copyright= en-aut-name=MoritaHidenori en-aut-sei=Morita en-aut-mei=Hidenori kn-aut-name=守田秀則 kn-aut-sei=守田 kn-aut-mei=秀則 aut-affil-num=1 ORCID= en-aut-name=HironakaShoya en-aut-sei=Hironaka en-aut-mei=Shoya kn-aut-name=弘中奨也 kn-aut-sei=弘中 kn-aut-mei=奨也 aut-affil-num=2 ORCID= en-aut-name=MatsumotoYuki en-aut-sei=Matsumoto en-aut-mei=Yuki kn-aut-name=松本雄樹 kn-aut-sei=松本 kn-aut-mei=雄樹 aut-affil-num=3 ORCID= affil-num=1 en-affil=Graduate School of Environmental and life Science, Okayama University kn-affil=岡山大学大学院環境生命科学研究科 affil-num=2 en-affil= kn-affil=倉敷市役所 affil-num=3 en-affil= kn-affil=復建調査設計株式会社 en-keyword=Land use kn-keyword=Land use en-keyword=GIS kn-keyword=GIS en-keyword=Thailand kn-keyword=Thailand en-keyword=Asparagus kn-keyword=Asparagus en-keyword=logit model kn-keyword=logit model END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=73 end-page=79 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2016年 環境数理学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=81 end-page=94 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2016年 環境デザイン工学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=95 end-page=106 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2016年 環境管理工学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=107 end-page=122 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2016年 環境物質工学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page=123 end-page=124 dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2016年 環境理工学部 研究受賞等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=22 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2017 dt-pub=201703 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=奥付 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=89 end-page=92 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Measurement of thermal conductivity in the soils of Shirakami Mountains kn-title=白神山地の土壌熱伝導率の測定 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Thermal conductivity of soils in Shirakami Mountains that was registered on UNESCO's World Natural Heritage in 1993 were measured using a twin transient-state cylindrical-probe method. The typical results were as follows:(1) Thermal conductivity of the soils in Shirakami Mountains increased according to an increase of soil water content, which was the same tendency as the other soils. (2) The thermal conductivity of the soils was about 0.2〜0.3 Wm(-1)K(-1) smaller than volcanic ash soils, and it showed the same tendency as leaf mold. en-copyright= kn-copyright= en-aut-name=HanzawaWakako en-aut-sei=Hanzawa en-aut-mei=Wakako kn-aut-name=繁澤和佳子 kn-aut-sei=繁澤 kn-aut-mei=和佳子 aut-affil-num=1 ORCID= en-aut-name=MoroizumiToshitsugu en-aut-sei=Moroizumi en-aut-mei=Toshitsugu kn-aut-name=諸泉利嗣 kn-aut-sei=諸泉 kn-aut-mei=利嗣 aut-affil-num=2 ORCID= en-aut-name=SasakiChoichi en-aut-sei=Sasaki en-aut-mei=Choichi kn-aut-name=佐々木長市 kn-aut-sei=佐々木 kn-aut-mei=長市 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=弘前大学農学生命科学部 en-keyword=Shirakami Mountains kn-keyword=Shirakami Mountains en-keyword=Thermal conductivity kn-keyword=Thermal conductivity en-keyword=Twin transient-state cylindrical-probe method kn-keyword=Twin transient-state cylindrical-probe method en-keyword=Volumetric water content kn-keyword=Volumetric water content END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=37 end-page=44 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A Numerical Study on Statistical Diagnostics on Cox Proportional Hazards Models for Survival Data Analysis en-subtitle= kn-subtitle= en-abstract= kn-abstract=There have been proposed so far many methods of statistical diagnostics in Cox regression for checking the goodness of the estimated model or checking the adequacy of the data. The former type contains the checking of the overall goodness of fit, the validity of the assumption of proportional hazards and the proper functional forms of the effects of covariates. While the latter type contains the checking whether there exist singly and/or jointly influential observations in the data set. In the present paper we study numerically the performances of various methods of diagnostics including our method of influence analysis for multiple-case diagnostics (Sung and Tanaka, 2003) by analyzing a real data set of lung cancer patients. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=SungJimin kn-aut-sei=Sung kn-aut-mei=Jimin aut-affil-num=1 ORCID= en-aut-name=TanakaYutaka en-aut-sei=Tanaka en-aut-mei=Yutaka kn-aut-name=田中豊 kn-aut-sei=田中 kn-aut-mei=豊 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Cox regression kn-keyword=Cox regression en-keyword=Influence function kn-keyword=Influence function en-keyword=Local influence kn-keyword=Local influence en-keyword=Influential Subsets kn-keyword=Influential Subsets en-keyword=Cox-Snell residuals kn-keyword=Cox-Snell residuals en-keyword=Martingale residual kn-keyword=Martingale residual en-keyword=Deviance residual kn-keyword=Deviance residual END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=77 end-page=81 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Characterization and Screening of N(2)-fixing Microorganisms at Maturity Stage in Rhizosphere of Rice Grown in Brahmaputra Alluvium Soil of Bangladesh en-subtitle= kn-subtitle= en-abstract= kn-abstract=Studies on the existing non-symbiotic diazotrophic systems still are the most promising for better use of biological nitrogen fixation (BNF) in agriculture. The possibilities for the extension of nitrogen fixation to rice plants still speculative. The prospect of extension of N(2)-fixation to other plants was originally formulated to simulate the possibilities for the biological use of atmospheric nitrogen in order to overcome the ecological and economical problems of nitrogenous fertilizers. In view of this, the present study was conducted for the characterization and identification of N(2)-fixing bacterial strains at the maturity (110 days) stage in rhizosphere of rice (BR 10, Oryza sativa L.) grown in Brahmaputra Alluvium soil of Bangladesh. The soil is characterized as 'Inceptisol' order and 'Aquept' suborder. It was identified as 'Dhamrai series', had 'silt' texture, pH 6.0 and 6.8 C/N ratio. The present results of the microbial tests on the rice rhizosphere soil demonstrated that out of 401 isolates, only 94 were branded as nitrogen fixing organisms per gram of soil, which is about 23.4% of the total isolates. Based on the selection criteria, four individual strains were selected for identification. Biochemical tests were conducted for proper identification. They were identified as Closteridium spp., Klebsiella spp., Bacillus spp. and Azospirllum spp. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KhanMd. H. R. kn-aut-sei=Khan kn-aut-mei=Md. H. R. aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=MohiuddinM. kn-aut-sei=Mohiuddin kn-aut-mei=M. aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=RahmanM. kn-aut-sei=Rahman kn-aut-mei=M. aut-affil-num=3 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AkhtarM. S. kn-aut-sei=Akhtar kn-aut-mei=M. S. aut-affil-num=4 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=5 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=6 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=Department of Soil, Water and Environment, University of Dhaka affil-num=3 en-affil= kn-affil=Department of Soil, Water and Environment, University of Dhaka affil-num=4 en-affil= kn-affil=岡山大学 affil-num=5 en-affil= kn-affil=岡山大学 affil-num=6 en-affil= kn-affil=岡山大学 en-keyword=Azospirllum spp. kn-keyword=Azospirllum spp. en-keyword=Bacillus spp. kn-keyword=Bacillus spp. en-keyword=BNF kn-keyword=BNF en-keyword=Closteridium spp. kn-keyword=Closteridium spp. en-keyword=Diazotrophs kn-keyword=Diazotrophs en-keyword=Klebsiella spp. kn-keyword=Klebsiella spp. en-keyword=Oryza sativa L. kn-keyword=Oryza sativa L. END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=1 end-page=6 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Circadian Oscillations in Systems of Biochemical Oscillators Coupled to Stationary Systems en-subtitle= kn-subtitle= en-abstract= kn-abstract=According ot previous studies, we may expect that slow oscillations can occur in dynamics of a parameterized family of systems in which a biochemical oscillator is coupled to a stationary systems. We introduce some numerical results that confirm our expectation. The results suggest that it is possible for slow oscillations to occur in dynamics of a system in which an active oscillatory unit is coupled to a passive medium, and that it is possible for circadian oscillations to arise from fast glycolytic oscillations in such a coupled system. en-copyright= kn-copyright= en-aut-name=WatanabeMasaji en-aut-sei=Watanabe en-aut-mei=Masaji kn-aut-name=渡辺雅二 kn-aut-sei=渡辺 kn-aut-mei=雅二 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=circadian rhythm kn-keyword=circadian rhythm en-keyword=glycolytic oscillation kn-keyword=glycolytic oscillation en-keyword=nonlinear oscillator kn-keyword=nonlinear oscillator END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=7 end-page=18 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Swap-Rate of Entrance Examination and Its Software -SRAS- kn-title=合否入れ替わり率とその解析ソフトウェアSRAS en-subtitle= kn-subtitle= en-abstract=When we select N? student from N applicants using a result of an entrance examination, which consists of two step selection, the primary test and the secondary test. It is important to evaluate the contribution for each test. Swap-rate is one of the measure of the contribution for each stage test, and it its widely used. In this paper, we describe a population swap-rate and a sample swap-rate in the first. Next, we consider the distribution of applicants who change the result of the test from pass to fail. Finary, we introduce our system "SRAS - Swap-Rate Analysis System-", that can analyze the examination data on such point of view. kn-abstract= en-copyright= kn-copyright= en-aut-name=TarumiTomoyuki en-aut-sei=Tarumi en-aut-mei=Tomoyuki kn-aut-name=垂水共之 kn-aut-sei=垂水 kn-aut-mei=共之 aut-affil-num=1 ORCID= en-aut-name=YamamotoYoshiro en-aut-sei=Yamamoto en-aut-mei=Yoshiro kn-aut-name=山本義郎 kn-aut-sei=山本 kn-aut-mei=義郎 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=19 end-page=35 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Assessment of Local Influence in Statistical Modelling with Equality Constraints kn-title=等式制約を含む統計モデルにおける局所影響の評価 en-subtitle= kn-subtitle= en-abstract=Influence analysis in the sense of Cook (1986)'s local influence is derived for statistical modelling with equality constraints. It is a supplement to Tanaka and Zhang (1998) and its formulation is an extension of that of Kwan and Fung (1998) so that it can deal with the influence on an arbitrary subset of parameters. As a special case the influence in principal component analysis is discussed and a numerical example is shown. The numerical results are compared with those by Zhang et al. (1998), in which local influence is evaluated by using the perturbation theory of eigenvalue problems, and the relationship is discussed with the influence functions derived by Tanaka and Watadani (1992). kn-abstract= en-copyright= kn-copyright= en-aut-name=ZhangFanghong en-aut-sei=Zhang en-aut-mei=Fanghong kn-aut-name=張方紅 kn-aut-sei=張 kn-aut-mei=方紅 aut-affil-num=1 ORCID= en-aut-name=MoriYuichi en-aut-sei=Mori en-aut-mei=Yuichi kn-aut-name=森裕一 kn-aut-sei=森 kn-aut-mei=裕一 aut-affil-num=2 ORCID= en-aut-name=TanakaYutaka en-aut-sei=Tanaka en-aut-mei=Yutaka kn-aut-name=田中豊 kn-aut-sei=田中 kn-aut-mei=豊 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Cook's local influence kn-keyword=Cook's local influence en-keyword=equality constraints kn-keyword=equality constraints en-keyword=principal component analysis kn-keyword=principal component analysis en-keyword=subsets of parameters kn-keyword=subsets of parameters END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=37 end-page=55 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Analysis of non-stationary spatial data : A study on the performances of Universal Kriging, Median-Polish Kriging and LOESS en-subtitle= kn-subtitle= en-abstract= kn-abstract=One of major problems in spatial analysis is to estimate the value z(s(0)) at an unknown location s(0) using the information about observations z(s(α)), α = 1,…,n. In this article, we will perform a numerical study about some methods for this problem. That is, we examine both the tranditional statistical method which does not take into account spatial correlation and the spatial statistical method which takes into account spatial correlation by applying them to a set of non-stationary spatial data. We compare the predictive powers of these methods. More precisely, we choose Universal Kriging(UK) and Median-Polish Kriging(MPK) as spatial statistical methods, and locally weighted regression or LOESS as a traditional method. As the major criterion for comparison, we use the so-called PRESS statistic, and also draw the prediction surface plot and the prediction standard error surface plot as minor criteria. A real numerical example of non-stantionary spatial data is analyzed for the comparison among the above three methods. en-copyright= kn-copyright= en-aut-name=ChoiSeung Bae en-aut-sei=Choi en-aut-mei=Seung Bae kn-aut-name=崔承培 kn-aut-sei=崔 kn-aut-mei=承培 aut-affil-num=1 ORCID= en-aut-name=TanakaYutaka en-aut-sei=Tanaka en-aut-mei=Yutaka kn-aut-name=田中豊 kn-aut-sei=田中 kn-aut-mei=豊 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Stationary kn-keyword=Stationary en-keyword=Variogram kn-keyword=Variogram en-keyword=UK kn-keyword=UK en-keyword=MPK kn-keyword=MPK en-keyword=LOESS kn-keyword=LOESS END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=57 end-page=75 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Statistical threshold model and radiosensitivity on binary data of radiation related cataract and epilation en-subtitle= kn-subtitle= en-abstract= kn-abstract=An analytic approach that provides explicit estimates of risk on cataract and epilation data is evaluated by reasonableness of conceivable relative risk models regarding a simple, odds, logistic or Gompertz regression method, assuming a binomial distribution. In these analyses, we apply relative risk models with two thresholds between epilators and nonepilators from a highly characteristic lesion of which radiation cataract does not occur around 2 gray for a single acute exposure. The risk models are fitted to the data assuming 10 as a constant relative biological effectiveness of neutron. The likelihood of observing the entire data set in these models fitted is evaluated by an individual binary-response array. Estimation of a threshold with or without severe epilation and the 100(1-α )% confidence limits are derived from the maximum likelihood approach. The relative risk model with two thresholds can be expressed as a formula with structure of Backgroun × RR, where RR includes threshold models with or without epilation. The radiosensitivity of ionizing radiation to cataracts has been examined for the relationship between epilators and nonepilators. en-copyright= kn-copyright= en-aut-name=OtakeMasanori en-aut-sei=Otake en-aut-mei=Masanori kn-aut-name=大竹正徳 kn-aut-sei=大竹 kn-aut-mei=正徳 aut-affil-num=1 ORCID= en-aut-name=TanakaYutaka en-aut-sei=Tanaka en-aut-mei=Yutaka kn-aut-name=田中豊 kn-aut-sei=田中 kn-aut-mei=豊 aut-affil-num=2 ORCID= en-aut-name=TomitaMakoto en-aut-sei=Tomita en-aut-mei=Makoto kn-aut-name=冨田誠 kn-aut-sei=冨田 kn-aut-mei=誠 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=radiation cataract kn-keyword=radiation cataract en-keyword=threshold model kn-keyword=threshold model en-keyword=profile approach kn-keyword=profile approach en-keyword=risk model kn-keyword=risk model en-keyword=radiosensitivity kn-keyword=radiosensitivity END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=77 end-page=80 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Hilbert C* -bimodules and countably infinite continuous graphs en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper, we contruct Hilbert C* -bimodules for continuous graphs whose vertexes are countable 1-dimensiona tori, and show some uniquness property of the C* -representatiion of these bimodules. en-copyright= kn-copyright= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Hilbert bimodule kn-keyword=Hilbert bimodule en-keyword=C* -algebras kn-keyword=C* -algebras en-keyword=continous graph kn-keyword=continous graph END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=81 end-page=92 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=In situ determination of field-saturated hydraulic conductivity of subsurface soil of vadose zone by technique of Pressure Infiltrometer en-subtitle= kn-subtitle= en-abstract= kn-abstract=For reducing or bridging gap between small scale laboratory investigations and large scale field investigations, a simple and portable model which is based on real situation and has a compatibility to laboratory core sampling, the pressure infiltrometer technique is introduced for determination of field-saturated hydraulic conductivity. The field -saturated hydraulic conductivity, K(FS), is obtained from measurements of steady flow rates applying constant head as well as falling head principle. The device is also used for field core sampling on which laboratory constant head as well as falling head tests is carried out. The field device is validated through comparison to laboratory core sample experiment and other existing methods. This paper describes first time a versatile field device representing good performance for in situ determination of hydraulic parameters in a short time. en-copyright= kn-copyright= en-aut-name=KohnoIchiro en-aut-sei=Kohno en-aut-mei=Ichiro kn-aut-name=河野伊一郎 kn-aut-sei=河野 kn-aut-mei=伊一郎 aut-affil-num=1 ORCID= en-aut-name=TakeshitaYuji en-aut-sei=Takeshita en-aut-mei=Yuji kn-aut-name=竹下祐二 kn-aut-sei=竹下 kn-aut-mei=祐二 aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Mohammad JafarAli kn-aut-sei=Mohammad Jafar kn-aut-mei=Ali aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=In-situ test kn-keyword=In-situ test en-keyword=Field-saturated Hydraulic conductivity kn-keyword=Field-saturated Hydraulic conductivity en-keyword=Matric flux potential kn-keyword=Matric flux potential en-keyword=Wetting front kn-keyword=Wetting front en-keyword=3D-flow kn-keyword=3D-flow END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=93 end-page=100 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Dynamic Behavior of Bed Material around Bridge Pier under Abrupt Change of Water Pressure en-subtitle= kn-subtitle= en-abstract= kn-abstract=Major failure of structures usually occurs during flood flows due to scourin, sinking and sliding. These types of failure are considered to be in close relation to the dynamic behavior of bed material around the structures. Failure of bridges due to the phenomenon of scouring around piers is a common, natural problem of river hydraulics. Experiments were carried out to investigate the characteristics of pore water pressure and effective stresses in the bed material around a circular bridge pier under abrupt change of water pressure. A laboratory model was used to clarify the effect of the variation of water pressure to determine the mechanism of the collapse of circular bridge pier during flood or storm waves. The experimental results showed that the bed material under suddeen change in drop of water pressure near the pier was weakenend by an increase in excess pore pressure, followed by a considerable quick removal of bed material. en-copyright= kn-copyright= en-aut-name=NagoHiroshi en-aut-sei=Nago en-aut-mei=Hiroshi kn-aut-name=名合宏之 kn-aut-sei=名合 kn-aut-mei=宏之 aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=MiaFaruque kn-aut-sei=Mia kn-aut-mei=Faruque aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Pore pressure kn-keyword=Pore pressure en-keyword=Effective stress kn-keyword=Effective stress en-keyword=Abrupt water pressure change kn-keyword=Abrupt water pressure change en-keyword=Scour kn-keyword=Scour en-keyword=Bridge pier kn-keyword=Bridge pier END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=101 end-page=118 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Environmental Symbiosis in Urban ane Regional Infrastructure Improvement -Some Examples in Okayama Region kn-title=都市地域整備と環境共生―岡山県における事例研究 en-subtitle= kn-subtitle= en-abstract=Now it is an important theme in the urban policy to revive natural and living environment surrouding city and to reconstruct softhearted city to human and environment. This paper deals with environmental symbiosis technique in urban and regional infrastructure improvement project in Okayama region. Environmental symbiosis techniques in road and street construction, highway construction, urban facilities improvement and the waterside improvement are reviewed and some problems are discussed. kn-abstract= en-copyright= kn-copyright= en-aut-name=InouyeHiroshi en-aut-sei=Inouye en-aut-mei=Hiroshi kn-aut-name=井上博司 kn-aut-sei=井上 kn-aut-mei=博司 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=119 end-page=130 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Water Table Recession in Subsurface Drained Soils en-subtitle= kn-subtitle= en-abstract= kn-abstract=Theoretical drainage equations are intensively tested in many parts of humid and arid regions and are commonly used in drainage design. However, this is still a great concern in Japan as the drainage design is exclusively based on local experiences and empirical basis. There is a need therefore to evaluate the theoretical drainage equations under Japanese field conditions to recommend equations for design of subsurface drainage systems. This was the main motivation for this study. While drainage requirements of different crops are difficult to define quantiatively, adequate drainage can probably be provided by designing for a given water table recession rate. The method used was to measure the rate of water table recession and drain outflow after cessation of a considerable amount of rainfall. Based on these measurements, soil parameters were determined and nine drainage equations were tested in simulating water table recession against actual field data of two drained experimental sites, located in Soja city west of Okayama prefecture, Japan, having drain spacing of 10 and 8.5 m for a period of two years. An experimental drainage equation was also derived and theoretical equations were recommended for design of subsurface drainage systems. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=MoustafaMahmoud Mohamed kn-aut-sei=Moustafa kn-aut-mei=Mahmoud Mohamed aut-affil-num=1 ORCID= en-aut-name=YomotaAtsushi en-aut-sei=Yomota en-aut-mei=Atsushi kn-aut-name=四方田穆 kn-aut-sei=四方田 kn-aut-mei=穆 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Simulation kn-keyword=Simulation en-keyword=Soil parameters kn-keyword=Soil parameters en-keyword=Subsurface drainage kn-keyword=Subsurface drainage en-keyword=Water table kn-keyword=Water table END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=131 end-page=145 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Growth, Yield and Mineral Composition of Three Rice Varieties Cultivated under Salt-Affected Conditions en-subtitle= kn-subtitle= en-abstract= kn-abstract=A pot experiment was conducted to study the relative performance of IR 6,KS 282 and IR 10198-66-2 rice varieties cultivated under salt-affected conditions at EC of 6.0,9.0 12.0 dS m(-1) in a sandy clay loam soil havig ECe of 1.6 dS m(-1) treated as control. Six seedlings of 39-day old transplaned to each pot having 12 kg soil. The fertilizer as nitrophos and potassium sulphate at the rate of 57.0, 25.0 and 50.0 mg N,P and K kg(-1) soil respectively was applied at the time of transplanting while zinc sulphate at the rate of 5 mg Zn kg(-1) soil and 43.0 mg N kg(-1) of soil as additional dose were applied 19 and 30 days after transplanting respectively. Normal plant protection measures like number of tillers, panicles, paddy grains, filled and unifilled grains, yield per plant and sterility were recorded and shoot and straw samples were analysed for sodium, potassium, calcium and chloride contents. It was observed that growth and yield of all the varieties were reduced significantly with increasing soil salinity. Na/K and Na/Ca rations in shoot and straw increased significantly with increasing soil salinity. It was also observed that higher values of Na/K and Na/Ca rations in shoots affected growth parameters while higher values of these rations in straw affected yield components and grain yield. However, IR 6 having relatively lower values of Na/K and Na/Ca rations proved to be the most salt-tolerant rice among the three varieties studied. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KambohMaqsood Ahmed kn-aut-sei=Kamboh kn-aut-mei=Maqsood Ahmed aut-affil-num=1 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=2 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=3 ORCID= en-aut-name=NariokaHajime en-aut-sei=Narioka en-aut-mei=Hajime kn-aut-name=成岡市 kn-aut-sei=成岡 kn-aut-mei=市 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=soil salinity kn-keyword=soil salinity en-keyword=growth and yield kn-keyword=growth and yield en-keyword=mineral compasition kn-keyword=mineral compasition en-keyword=rice varieties kn-keyword=rice varieties END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=147 end-page=158 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Photoconductive and Photovoltaic Properties in Cadmium Bismuth Aluminate Glasses en-subtitle= kn-subtitle= en-abstract= kn-abstract=Photo-induced phenomena such as photoconductive and photovoltaic effects were investigated for the glasses in CdO-Bi(2)O(3)-Al(2)O(3) system. Photoconductive effect was characterized by a slow decay of photocurrent (persitent photoconductivity). The decay rate decreased with increasing CdO content and decreasing Bi(2)O(3) content. Photovoltage was very small at room temperature but increased to an obvious value on heating. The photoconductivity and photovoltage were increased with CdO content and enhanced by heat treatment in air. The valence band spectra of X-ray photoelectron spectroscopy showed that the hybridization of Cd 4d and O 2p orbitals increases with decreasing Bi(2)O(3) content and increasing CdO content in the glasses. As the results maximum tends to flat. This type of band structure inhibits the rapid recombination of electrons and holes. The persistent photoconductivity of the glasses may be attributed to deep energy level of DX centers. Deep energy levels of the glasses are able to prevent the recombination because they have a repulsive barrier for both electron emission and capture. en-copyright= kn-copyright= en-aut-name=ChenDanping en-aut-sei=Chen en-aut-mei=Danping kn-aut-name=陳丹平 kn-aut-sei=陳 kn-aut-mei=丹平 aut-affil-num=1 ORCID= en-aut-name=WatanabeTomohiro en-aut-sei=Watanabe en-aut-mei=Tomohiro kn-aut-name=渡辺智大 kn-aut-sei=渡辺 kn-aut-mei=智大 aut-affil-num=2 ORCID= en-aut-name=MiuraYoshinari en-aut-sei=Miura en-aut-mei=Yoshinari kn-aut-name=三浦嘉也 kn-aut-sei=三浦 kn-aut-mei=嘉也 aut-affil-num=3 ORCID= en-aut-name=NanbaTokuro en-aut-sei=Nanba en-aut-mei=Tokuro kn-aut-name=難波徳郎 kn-aut-sei=難波 kn-aut-mei=徳郎 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=Wuhan University of Technology affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Photoconductivity kn-keyword=Photoconductivity en-keyword=Photovoltage kn-keyword=Photovoltage en-keyword=Persistent photoconductivity kn-keyword=Persistent photoconductivity en-keyword=CdO-Bi(2)O(3)-Al(2)O(3) glasses kn-keyword=CdO-Bi(2)O(3)-Al(2)O(3) glasses en-keyword=Electronic state kn-keyword=Electronic state END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=159 end-page=174 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Manufacture Industry in the Tokugawa Period kn-title=幕末マニュファクチャー論争の総決算 en-subtitle= kn-subtitle= en-abstract=This paper deals with the well-known controversy in the middle of this century (ca.1930~1975) on the subject of the developmental phase of the industry in the late Tokugawa Period. The point at issue in dispute was whether the industry of the pre-Meiji era had so far advanced as to the "Manufacture Stage" that precedes the "Modern Factory Stage" set in the theories of Marx and Lenin. In the ride of regression of Marxism the dispute seems to be now brought to a close. However, as the issue is closely related to the modernization in general, the discussion is sure to go on further in the future. The paper first surveys industry regions of pre-Meiji Japan, second introduces briefly important opinions of the dispute, then precisely examines the stage theories of Marx and Lenin, trying to find a correct answer that accords with the two. That it poses a question to the negative evaluation of the putting-out system and tries to find its proper place in the development of the production forms of modern capitalism and would thus get a better solution of the problem. The paper finally mentions the current active discussions about proto-industry and about the analysis of the international trade among Asian countries at the end of the 19t century and shows their relations to the dispute above. kn-abstract= en-copyright= kn-copyright= en-aut-name=TonomuraNaohiko en-aut-sei=Tonomura en-aut-mei=Naohiko kn-aut-name=外村直彦 kn-aut-sei=外村 kn-aut-mei=直彦 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=4 cd-vols= no-issue=1 article-no= start-page=175 end-page=181 dt-received= dt-revised= dt-accepted= dt-pub-year=1999 dt-pub=19990226 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Commencer...et la suite : deux obsessions majeures de l'ecriture en-subtitle= kn-subtitle= en-abstract= kn-abstract=What is the meanig of the first sentence, and then the meaning of the full stop? This essay tries to give an answer from a literaly, soial and metaphysical point of view. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=ChamelJean-Luc kn-aut-sei=Chamel kn-aut-mei=Jean-Luc aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=99 end-page=101 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Liquid Phase Oxidation of Benzene to Phenol with Molecular Oxygen using Carbon-based Fe-Pd and Cu-Pd Catalyst en-subtitle= kn-subtitle= en-abstract= kn-abstract=Liquid phase oxidation of benzene to phenol was carried out with O(2) using carbon-based Fe-Pd and Cu-Pd catalysts at 40℃. The carbon-based Fe-Pd and Cu-Pd catalyst were prepared by modified carbothermal reduction of metal ion exchange method using cation exchange resin as a source of carbon. Fe/carbon, Cu/carbon and Pd/carbon were not effective for the oxidation of benzene to phenol with O(2) when H(2) was used as a catalyst reducing agent, however both Fe/carbon and Cu/carbon catalysts revealed activities when ascorbic acid was used as a reducing agent. Bimetallic catalysts such as Fe-Pd/carbon and Cu-Pd/carbon showed much higher activity for phenol production than the monometallic catalysts even when H(2) was used a reducing agent. Catalytic activity of Fe-Pd catalyst was much (ca. 2.5 times) higher than the Cu-Pd/catalyst. A physical mixture of the single component catalysts such as Fe and Pd or Cu and Pd were not effective in the oxidation of benzene to phenol, suggesting that an intimate contact between Fe or Cu species with Pd species is necessary to formulate an active catalyst. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=UddinMd. Azhar kn-aut-sei=Uddin kn-aut-mei=Md. Azhar aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=TaniharaManbu kn-aut-sei=Tanihara kn-aut-mei=Manbu aut-affil-num=2 ORCID= en-aut-name=MutoAkinori en-aut-sei=Muto en-aut-mei=Akinori kn-aut-name=武藤明徳 kn-aut-sei=武藤 kn-aut-mei=明徳 aut-affil-num=3 ORCID= en-aut-name=SakataYusaku en-aut-sei=Sakata en-aut-mei=Yusaku kn-aut-name=阪田祐作 kn-aut-sei=阪田 kn-aut-mei=祐作 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=oxidation of benzene kn-keyword=oxidation of benzene en-keyword=synthesis of phenol kn-keyword=synthesis of phenol en-keyword=metal-carbon catalyst kn-keyword=metal-carbon catalyst END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=83 end-page=89 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Effects of Brick Burning on Microbial Biomass and C/N Ratio in Selected Soil Profiles in the Eastern Region of Bangladesh en-subtitle= kn-subtitle= en-abstract= kn-abstract=The pH values in the profiles of unburnt (agricultural land) soils were found to increase as a function of soil depth and burning (400 to 1000℃) of the soils increased average pH by 8%. The average sand content of the burnt (soil around brick kilns) soil profiles was increased by 245%, while 39 and 36% decreased the silt and clay contents. Soil organic carbon (Corg) in the unburnt soils (0-20 cm) at different agro-ecological zones in the eastern region of Bangladesh ranged from 0.8 and 1.4%, whereas the content of microbial biomass carbon (Cmic) in the studied unburnt soils ranged between 5 and 7% of the total Corg, suggesting that the microbial biomass releasing considerable amounts of carbon in soil while burning of the soils drastically reduced this contribution to about 1%. The values of soil Cmic in the unburnt soils were approximately 2 to 6 times higher in the topsoils than the subsoils (20-60 cm). Variable rainfall, temperature and soil fertility had an overriding influence, which was reflected by the average minimum (276 μg g(-1)) and maximum (439) amounts of soil Cmic in Moulvibazar and Cox' Bazar sites. The Cmic decreased upon soil burning by 92% of its original average value (346 μg g(-1)) in the soil profile of up to 100 cm. Burning of topsoils strikingly increased the Corg/Cmic ratio by about 6 to 9 times, while reduced the C/N ratio by about 1.5 to 2.5 times. The average loss of Corg, available and total N due to burning of the soils were 66, 72 and 44% (increase over average content of unburnt soil: IOAC), respectively, which suggests that the burning of the soils offset the essential roles of soil microorganisms, reduced soil fertility and soil microbial contribution. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KhanMd. H. R. kn-aut-sei=Khan kn-aut-mei=Md. H. R. aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=RahmanMd. K. kn-aut-sei=Rahman kn-aut-mei=Md. K. aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=RoufA. J. M. A. kn-aut-sei=Rouf kn-aut-mei=A. J. M. A. aut-affil-num=3 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=SattarG. S. kn-aut-sei=Sattar kn-aut-mei=G. S. aut-affil-num=4 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AkhtarM. S. kn-aut-sei=Akhtar kn-aut-mei=M. S. aut-affil-num=5 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=6 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=Department of Soil, Water and Environment, Faculty of Biological Sciences, University of Dhaka affil-num=3 en-affil= kn-affil=Ministry of Science and Information & Communication Technology affil-num=4 en-affil= kn-affil=Department of Geology and Mining. University of Rajshahi affil-num=5 en-affil= kn-affil=岡山大学 affil-num=6 en-affil= kn-affil=岡山大学 affil-num=7 en-affil= kn-affil=岡山大学 en-keyword=brick burning kn-keyword=brick burning en-keyword=C/N ratio kn-keyword=C/N ratio en-keyword=microbial biomass carbon kn-keyword=microbial biomass carbon en-keyword=soil organic carbon kn-keyword=soil organic carbon en-keyword=ratio of microbial biomass to organic carbon. kn-keyword=ratio of microbial biomass to organic carbon. END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=103 end-page=106 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Synthesis of Novel Temperature-responsive Polymer Gel of Poly(aspartic acid)s kn-title=ポリアスパラギン酸系温度応答性ゲルの創製 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Recently, thermo-responsive polymer gels have been studied in various research fields such as drug delivery system. One of represetative thermo-responsive polymer gels is poly(N-isopropylacrylamide) gel (PNIPAAm) that has a rapid and reversible volume phase transition. However, PNIPAAm is not biodegradable, resulting in limitation of its use in medical fields. Novel thermo-responsive polymer gel was prepared by closslinking of isopropylamine modified poly(succinimide) (IPA-PSI) (Poly[α,β -(DL-aspartate isopropyl amide)-co-(succinimide)]) with hexamethylenediamine. Because of peptide bonds in backbone, therefore, it is expected to possess biodegradability and biocompatibility. These gels changed their volume in response to change of environment such as temperature, pH and concentration of salt in water. Crosslinkage density and substitution degree of IPA-PSI affected volume phase transition bahavior of the gel. en-copyright= kn-copyright= en-aut-name=UeharaHiroki en-aut-sei=Uehara en-aut-mei=Hiroki kn-aut-name=上原広樹 kn-aut-sei=上原 kn-aut-mei=広樹 aut-affil-num=1 ORCID= en-aut-name=TanimotoFumiaki en-aut-sei=Tanimoto en-aut-mei=Fumiaki kn-aut-name=谷元史明 kn-aut-sei=谷元 kn-aut-mei=史明 aut-affil-num=2 ORCID= en-aut-name=KitamuraYoshiro en-aut-sei=Kitamura en-aut-mei=Yoshiro kn-aut-name=北村吉朗 kn-aut-sei=北村 kn-aut-mei=吉朗 aut-affil-num=3 ORCID= en-aut-name=YoshizawaHidekazu en-aut-sei=Yoshizawa en-aut-mei=Hidekazu kn-aut-name=吉澤秀和 kn-aut-sei=吉澤 kn-aut-mei=秀和 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Thermo-responsive polymer gel kn-keyword=Thermo-responsive polymer gel en-keyword=Biodegradable polymer kn-keyword=Biodegradable polymer en-keyword=Poly(aspartic acid) kn-keyword=Poly(aspartic acid) en-keyword=Lower Critical Solution Temperature(LCST) kn-keyword=Lower Critical Solution Temperature(LCST) en-keyword=Drug delivery system(DDS) kn-keyword=Drug delivery system(DDS) END start-ver=1.4 cd-journal=joma no-vol=15 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=20100315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=表紙 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=Faculty of Environmental Science and Technology, Okayama University en-aut-sei=Faculty of Environmental Science and Technology, Okayama University en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=15 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=20100315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=目次 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=Faculty of Environmental Science and Technology, Okayama University en-aut-sei=Faculty of Environmental Science and Technology, Okayama University en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=15 cd-vols= no-issue=1 article-no= start-page=1 end-page=13 dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=20100315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Changing Agriculture in Japan and Relevant Problems based on Long-term Transition Analysis en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=DincsoyEnver Erdinc kn-aut-sei=Dincsoy kn-aut-mei=Enver Erdinc aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=FanShunru kn-aut-sei=Fan kn-aut-mei=Shunru aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=Graduate school of environmental science and technology, Okayama University affil-num=2 en-affil= kn-affil=Graduate school of natural science and technology, Okayama University affil-num=3 en-affil= kn-affil=Graduate school of environmental science and technology, Okayama University END start-ver=1.4 cd-journal=joma no-vol=15 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=20100315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2009年度　環境数理学科研究報告 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=Faculty of Environmental Science and Technology, Okayama University en-aut-sei=Faculty of Environmental Science and Technology, Okayama University en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=15 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=20100315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2009年度　環境デザイン工学科研究報告 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=Faculty of Environmental Science and Technology, Okayama University en-aut-sei=Faculty of Environmental Science and Technology, Okayama University en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=15 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=20100315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2009年度　環境管理工学科研究報告 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=Faculty of Environmental Science and Technology, Okayama University en-aut-sei=Faculty of Environmental Science and Technology, Okayama University en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=15 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=20100315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2009年度　環境物質工学科研究報告 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=Faculty of Environmental Science and Technology, Okayama University en-aut-sei=Faculty of Environmental Science and Technology, Okayama University en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=15 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=20100315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=奥付 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name=Faculty of Environmental Science and Technology, Okayama University en-aut-sei=Faculty of Environmental Science and Technology, Okayama University en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=107 end-page=110 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Emulsification Properties of Poly(lactide-block-ethylene glycol-block-lacticide) Block Polymers kn-title=ポリ（乳酸−エチレングリコール）トリブロック共重合体の乳化特性 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Homo-and copolymers of poly(lactic acid) have gathered much attention because of their biodegradability and biocompatibility. They have numerous applications in the biomedical field due to their potential. In their polymers, we are interested in poly(lactic acid)-poly(ethylene glycol) block polymers. The amphiphilic triblock copolymers, poly(DL-lactic acid)-poly(ethylene glycol)-poly(DL-lactic acid)(PLEL), have known to be surface-active ability. Therefore, we have studied emulsification properties with the polymers. PLEL were prepared by ring-opening copolymerization of DL-lactide and poly(ethylene glycol) catalyzed by stannous 2-ethylhexanoate. We prepared ethyl acetate-water-PLEL emulsion and applied this emulsion to biodegradable polymer scaffolds. PLA scaffolds were prepared by an emulsion freeze-drying method. These scaffolds were made by varying water weight fraction. Their surface pore size became larger with increasing water weight fraction. en-copyright= kn-copyright= en-aut-name=MatsumotoYasuo en-aut-sei=Matsumoto en-aut-mei=Yasuo kn-aut-name=松本康夫 kn-aut-sei=松本 kn-aut-mei=康夫 aut-affil-num=1 ORCID= en-aut-name=KitamuraYoshiro en-aut-sei=Kitamura en-aut-mei=Yoshiro kn-aut-name=北村吉朗 kn-aut-sei=北村 kn-aut-mei=吉朗 aut-affil-num=2 ORCID= en-aut-name=YoshizawaHidekazu en-aut-sei=Yoshizawa en-aut-mei=Hidekazu kn-aut-name=吉澤秀和 kn-aut-sei=吉澤 kn-aut-mei=秀和 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Poly(lactic acid) kn-keyword=Poly(lactic acid) en-keyword=Poly(ethylene glycol) kn-keyword=Poly(ethylene glycol) en-keyword=Biodegradable polymer kn-keyword=Biodegradable polymer en-keyword=Tissue Engineering kn-keyword=Tissue Engineering en-keyword=Surfactant kn-keyword=Surfactant END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=27 end-page=36 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Commutative quartic P-Galois extensions over a field of characteristic 2 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Let A/R be a ring extension and P a subset of Hom(A(R),A(R)). In his paper [5], K. Kishimoto introduced the notion of a P-Galois extension and gave several basic properties of these extensions. The author showed that these extensions are closely related to Hopf Galois extensions and the structure of quadratic or cubic P-Galois extensions over a field were given in [9] and [10]. Recently,the author classify commutative quartic P-Galois extensions over a field of characteristic not 2 in [11]. Continuing [11], we treat commutative quartic P-Galois extensions over a field of characteristic 2. en-copyright= kn-copyright= en-aut-name=NakajimaAtsushi en-aut-sei=Nakajima en-aut-mei=Atsushi kn-aut-name=中島惇 kn-aut-sei=中島 kn-aut-mei=惇 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Cyclic extension kn-keyword=Cyclic extension en-keyword=P-Galois extension kn-keyword=P-Galois extension en-keyword=Hopf Galois extension kn-keyword=Hopf Galois extension END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=15 end-page=18 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Numerical Techniques for Simulation of Tsunami Based on Finite Elements en-subtitle= kn-subtitle= en-abstract= kn-abstract=Numerical techniques to simulate tsunamis are described. Partial differential equations are reduced to a system of ordinary differential equations to which appropriate numerical solvers can be applied. The techniques are illustrated with an example in which tsunami due to an earthquake is simulated. en-copyright= kn-copyright= en-aut-name=WatanabeMasaji en-aut-sei=Watanabe en-aut-mei=Masaji kn-aut-name=渡辺雅二 kn-aut-sei=渡辺 kn-aut-mei=雅二 aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=LiuYing kn-aut-sei=Liu kn-aut-mei=Ying aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=WangMing Jun kn-aut-sei=Wang kn-aut-mei=Ming Jun aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=tsunami kn-keyword=tsunami en-keyword=finite elements kn-keyword=finite elements en-keyword=numerical simulation kn-keyword=numerical simulation END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=91 end-page=98 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Analyses of the Genetic Parameters (Variability, Heritability, Genetic Advance, Relationship of Yield and Yield Contributing Characters) for some Plant Traits among Brassica Cultivars under Phosphorus Starved Environmental Cues en-subtitle= kn-subtitle= en-abstract= kn-abstract=The potential of a crop favorably respond to breeding/selection and bioengineering programs depends upon the nature and magnitude of genetic variability. For effective selection, information on nature and magnitude of variation in population, association of character with dry matter yield and among themselves and the extent of environmental influence on the expression of these characters are necessary. The estimates of genetic parameters help in understanding the role of various plant traits in establishing the growth behavior of cultivars under a given set of environmental conditions. Genetic analysis leads us to a clear understanding of different morphological, physiological and genetic characters and also the type and extent of their contribution to dry matter yield. Six Brassica cultivars were grown in a P-deficient sandy loam soil for 49 days after sowing. Significant variations were observed for all the characters in all the cultivars used in the experiment. All the characters showed high　heritability coupled with high genetic advance. Heritability (h(2)) is an approximate measure of the expression of a character. The highest estimates of broad sense heritability (h(2)= 0.90) and relative expected genetic advance (85.72%) were noted for root dry matter (RDM), while the estimate of expected genetic advance at 10% selection intensity was quite high (ΔG = 85.30cu) for leaf area per plant. The estimates of coheritability were positive and relatively higher for rootshoot ratio (RSR) in combination with shoot dry matter (SDM) (coh(2) = 2.002) and phosphorus use efficiency (PUE) (coh(2) = 1.875), whereas coheritability estimates were negative between leaf area per plant and RSR (coh(2) = -0.2010) indicating lack of association between these traits. High heritability with high genetic advance was exhibited by all the studied plant traits of cultivars evidencing that the traits could be further improved through individual plant selection. The innate variations within the Brassica gene-pool impel to drive a concentrated effort to understand the basis of adaptability. Access to the relevant genetic traits and information will provide necessary tools to select the optimal combinations of alleles adapted to local and changing growing environments especially nutrient stress conditions such as phosphorus (P) starvation. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AkhtarM. Shahbaz kn-aut-sei=Akhtar kn-aut-mei=M. Shahbaz aut-affil-num=1 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=2 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=3 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KhanMd. H. R. kn-aut-sei=Khan kn-aut-mei=Md. H. R. aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Brassica kn-keyword=Brassica en-keyword=Coheritability kn-keyword=Coheritability en-keyword=Genetic advance kn-keyword=Genetic advance en-keyword=Genetic variability kn-keyword=Genetic variability en-keyword=P-starvation kn-keyword=P-starvation en-keyword=Selection intensity kn-keyword=Selection intensity END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=1 end-page=7 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Development of the Mesh Data Analysis System kn-title=地域メッシュデータ分析システムの開発 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Area mesh statistics is a kind of small area statistics. The area mesh data of Japan can be created in a lot of way and many of them can be downloaded, for example, from the land's value information service which is provided by Ministry of Land, Infrastructure and Transport of Japan. We developed database of these area mesh data. By using mesh navigator software (Makita Naoki, 1997), which needs to run on ProAtlas2000 and Microsoft Access2000, we displayed the mesh data on the map. What visualized on the map is very convenient. For extending the advantages of area mesh data to spatial geographical statistics, we used PostgreSQL to develop a new database of mesh data. We also develop some programs in Delphi for the analysis of area mesh data, such as Histogram, Echelon analysis, and etc. en-copyright= kn-copyright= en-aut-name=NiuDonghui en-aut-sei=Niu en-aut-mei=Donghui kn-aut-name=牛冬慧 kn-aut-sei=牛 kn-aut-mei=冬慧 aut-affil-num=1 ORCID= en-aut-name=TarumiTomoyuki en-aut-sei=Tarumi en-aut-mei=Tomoyuki kn-aut-name=垂水共之 kn-aut-sei=垂水 kn-aut-mei=共之 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Area mesh data kn-keyword=Area mesh data en-keyword=PostgreSQL kn-keyword=PostgreSQL en-keyword=PQCompo kn-keyword=PQCompo en-keyword=ProAtlas2000 kn-keyword=ProAtlas2000 END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=107 end-page=117 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title='Tailoring the Plant to Fit the Soil' in Stead of 'Tailoring the Soil to Fit the Plant' is an Alternate Environmental Sound Strategy to Acclimate Orthophosphate (Pi) Deprivation via Highly Coordinated Classical Pi-Starvation Induced Mechanisms en-subtitle= kn-subtitle= en-abstract= kn-abstract=Acclimation to orthophosphate (Pi) deprivation via highly coordinated Pi-starvation induced (PSI) classical mechanisms such as copious quantities of H(+) and carboxylates (OAs) exudation, remodeling and modification of root architecture by increasing structural and functional plasticity, enhanced uptake rate and increased synthesis of Pi transporters would reduce or eliminate our current overreliance on expensive, polluting, and nonrenewable Pi-fertilizers. These complicated but elegant morphological, physiological, biochemical and molecular adjustments of Pi-starved plants provide an excellent example of how the unique flexibility of plant metabolism and energy transduction helps them to cope in a typically stressful environment. Pi-starved roots possess enhanced H(+)-ATPase and PEPCase which could result in increasing H(+) efflux and OAs exudations in the root vicinity. This would lead to the rhizosphere acidification, which thereby contribute to the solublization and assimilation of mineral Pi from environment. To visualize the dissolution of sparingly soluble Ca-phosphate and rhizospheric pH changes (in situ), genetically diverse Brassica cultivars were grown on agar media. Newly formed Ca-phosphate was suspended in agar containing other essential nutriens. With NH(4)(+) applied as the N source, the precipitate dissolved in the root vicinity and this was ascribed to acidification. No dissolution was occurred with No(3)(-)-nutrition. In order to observe the pH changes at the media-root interface (rhizosphere), an image analysis was carried out after embedding the roots in agar containing bromocresol purple as pH indicator. Efficient cultivar 'Brown Raya' showed greater decrease in pH than P-inefficient 'B.S.A' in the culture media. Hydroponically grown cultivars were compared with respect to P-utilization efficiency (PUE), P-stress factor (PSF), and Ca- and P-uptake at P-starvation. PUE, and Ca- and P-uptake correlated significantly (P<0.01) with biomass accumulation, indicating that higher P-uptake of efficient cultivars was because of their higher Ca-uptake, which in turn was related to their better P-acquisition and PUE. Remodelling of root architecture of efficient cultivars helped the cultivars to establish a better rooting system, which provided basis for tolerance under P-starvation. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AkhtarM. Shahbaz kn-aut-sei=Akhtar kn-aut-mei=M. Shahbaz aut-affil-num=1 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=2 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=3 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KhanMd. H. R. kn-aut-sei=Khan kn-aut-mei=Md. H. R. aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Brassica kn-keyword=Brassica en-keyword=Bromocresol purple kn-keyword=Bromocresol purple en-keyword=H(+) -efflux kn-keyword=H(+) -efflux en-keyword=Rhizospheirc pH changes and acidification kn-keyword=Rhizospheirc pH changes and acidification en-keyword=PUE kn-keyword=PUE END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=9 end-page=17 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Small Geographic Area Estimation in WinBUGS with Two Approaches Prediction en-subtitle= kn-subtitle= en-abstract= kn-abstract=Small Area Estimation (SAE) is the process of using statistical models to link survey outcome variables to a set of predictor variables known for small domains, in order to predict domain-level estimates. The need for detailed statistics on small area is constantly increasing. Small area estimation is becoming important in survey sampling due to a growing demand for reliable small area statistics from both public and private sectors. Bayesian hierarchical models provide a convenient framework for disease mapping and geographical correlation studies. Computation may be carried out using the freely-available WinBUGS software. Two approaches prediction to estimate total patient in small area i will be presented. For the purpose of this paper, the small area estimation in this context use data of Indnesia's population based on the 2000 census for the population of Jakarta and data of patient diarrhea from District Health Service of Jakarta. We interest to predict total patient of diarrhea as variable of interest and data population as auxiliary data from unsample for each small area. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=SetiawanAgus kn-aut-sei=Setiawan kn-aut-mei=Agus aut-affil-num=1 ORCID= en-aut-name=TarumiTomoyuki en-aut-sei=Tarumi en-aut-mei=Tomoyuki kn-aut-name=垂水共之 kn-aut-sei=垂水 kn-aut-mei=共之 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Auxiliary data kn-keyword=Auxiliary data en-keyword=Population density kn-keyword=Population density en-keyword=Sample survey kn-keyword=Sample survey en-keyword=Small area estimation kn-keyword=Small area estimation en-keyword=WinBUGS kn-keyword=WinBUGS END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=1 end-page=6 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Numerical study of biodegradation of xenobiotic polymers based on exogenous depolymerization model with time dependent degradation rate en-subtitle= kn-subtitle= en-abstract= kn-abstract=A mathematical model for exogenous depolymerization with time dependent degradation rate is analyzed in order to study the biodegradation of polyethylene glycol. The weight distribution with respect to the molecular weight before and after cultivation of microorganisms were analyzed an inverse problem to determine the time dependent degradation rate. Numerical techniques to solve the inverse problem and to simulate the transition of the weight distribution are described. en-copyright= kn-copyright= en-aut-name=WatanabeMasaji en-aut-sei=Watanabe en-aut-mei=Masaji kn-aut-name=渡邊雅二 kn-aut-sei=渡邊 kn-aut-mei=雅二 aut-affil-num=1 ORCID= en-aut-name=KawaiFusako en-aut-sei=Kawai en-aut-mei=Fusako kn-aut-name=河合富佐子 kn-aut-sei=河合 kn-aut-mei=富佐子 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=biodegradation kn-keyword=biodegradation en-keyword=polyethylene glycol kn-keyword=polyethylene glycol en-keyword=mathematical model kn-keyword=mathematical model en-keyword=numerical simulation kn-keyword=numerical simulation END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=19 end-page=26 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A Study on the Linear Cryptanalysis of AES Cipher en-subtitle= kn-subtitle= en-abstract= kn-abstract=We have investigated the linear cryptanalysis of AES cipher in this article. As the previous encryption standard DES could be broken by the linear cryptanalysis, NIST decided a new encryption standard AES in 2000. We try to analyze one and two rounds AES cipher by the method of the linear cryptanalysis and learn the limits of this mehtod. AES cipher provides a conspicuous difficulty in breaking its keys because of small bias of its S-box. We report the experimental results of success rate and are led to conclusion that this method would not work well on more than 3 rounds to break keys. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=SakamuraKenichi kn-aut-sei=Sakamura kn-aut-mei=Kenichi aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=DongWang Xiao kn-aut-sei=Dong kn-aut-mei=Wang Xiao aut-affil-num=2 ORCID= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=AES kn-keyword=AES en-keyword=Chosen plaintext attack kn-keyword=Chosen plaintext attack en-keyword=Linear cryptanalysis kn-keyword=Linear cryptanalysis END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=1 end-page=7 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Modeling of re-emerging Plasmodium vivax in the Northern Area of the Republic of Korea Based on a Mathematical Model en-subtitle= kn-subtitle= en-abstract= kn-abstract=Plasmodium vivax re-emerged in 1993 near the demilitarized zone (DMZ) in South Korea, although P. vivax malaria disappeared in South Korea in 1979. The re-emergence of malaria in South Korea is believed to have originated from infection by mosquitoes from North Korea across the DMZ. The principal vector of P. vivax in the Korean Peninsula is Anopheles sinensis. The density of An. sinensis has a peak during the second week of July. The North Korean strain of P. vivax has 2 characteristics: a wide distribution of the terms of relapse and a high rate of relapse. Therefore, we may well wonder why the incidence of malaria is concentrated in summer, especially in August. Mathematical models in North Korea and South Korea were constructed in which the South Korean model was affected unidirectionally by the North Korean model. We carried out simulations of the model for the Paju-shi and Yonchon-gun situations near the DMZ region. The simulation results followed the time-course of the re-emergence of P. vivax there, and revealed the mechanism of the elevation of the incidence of P. vivax in summer. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=FujitaKazutoshi kn-aut-sei=Fujita kn-aut-mei=Kazutoshi aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Tian TianChen kn-aut-sei=Tian Tian kn-aut-mei=Chen aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=NishinaTomohiko kn-aut-sei=Nishina kn-aut-mei=Tomohiko aut-affil-num=3 ORCID= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=DMZ kn-keyword=DMZ en-keyword=Korea kn-keyword=Korea en-keyword=model kn-keyword=model en-keyword=Plasmodium vivax kn-keyword=Plasmodium vivax en-keyword=re-emergence kn-keyword=re-emergence END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=7 end-page=18 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The order elliptic curves over finite fields of characteristic two using the Schoof algorithm en-subtitle= kn-subtitle= en-abstract= kn-abstract=The elliptic curve cryptosystem is a popular cryptosystem. Its safety depends on the difficulty of the elliptic curve discrete logarithm problem (ECDLP). From the viewpoint of ECDLP, it is very interesting to determine the order of elliptic curves. We tabulate the order of elliptic curves on the finite field of characteristic two using the Schoof algorithm, which is an efficient algorithm to decide orders. The Schoof algorithm is carried out by O(log(8)q). Because the calculation of y(q2) occupies most of the time used to execute the Schoof algorithm, it is necessary to reduce the amount of y(q2) calculations. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=ImuraKeigo kn-aut-sei=Imura kn-aut-mei=Keigo aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=XiaoDongWang kn-aut-sei=XiaoDong kn-aut-mei=Wang aut-affil-num=2 ORCID= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=elliptic curve kn-keyword=elliptic curve en-keyword=order kn-keyword=order en-keyword=division polynomial kn-keyword=division polynomial en-keyword=Schoof algorithm kn-keyword=Schoof algorithm en-keyword=finite field of characteristic two kn-keyword=finite field of characteristic two END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=9 end-page=14 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A stochastic model of Echinococcus multilocularis focusing on protoscoleces en-subtitle= kn-subtitle= en-abstract= kn-abstract=The red fox (Vulpes vulepes) and the vole ( Clethrionomys refocanus) are principal hosts of Echinococcus multilocularis in Hokkaido, Japan. How protoscoleces increases in voles and the level of immunity in foxes remain unknown because of the lack of survey data, so that it is important to clarify these mecahnisms in order to develop control strategies against E. multilocularis. In this study, the growth of protoscoleces in the infected voles was approximated as the logistic curve, the level of immunity in the fox was assumed to depend on the experience of the infection with E. multilocularis, and the worm burden in the fox was assumed to be governed by the amount of protoscoleces in the vole. Our model showed that the population densities of the hosts and the level of immunity influenced the prevalence of the E. multilocularis. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=NishinaTomohiko kn-aut-sei=Nishina kn-aut-mei=Tomohiko aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Tian TianChen kn-aut-sei=Tian Tian kn-aut-mei=Chen aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=FujitaKazutoshi kn-aut-sei=Fujita kn-aut-mei=Kazutoshi aut-affil-num=3 ORCID= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Echinococcus multilocularis kn-keyword=Echinococcus multilocularis en-keyword=protoscoleces kn-keyword=protoscoleces en-keyword=immunity kn-keyword=immunity en-keyword=worm burden kn-keyword=worm burden en-keyword=stochastic model kn-keyword=stochastic model END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=19 end-page=27 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A mathematical model of Plasmodium falciparum transmission incorporating drug resistance: Simulations of the Solomon Islands situation kn-title=クロロキシン薬剤耐性に関する熱帯熱マラリア数理モデル解析 ―ソロモン諸島を対象としたシミュレーション en-subtitle= kn-subtitle= en-abstract= kn-abstract=The Solomon Islands are known as a high endemic region of malaria. The resistance of Plasmodium falciparum to chloroquine has been confirmed since 1980 in the Solomon Islands, and the spread of chloroquine resistance is a big hurdle to malaria control. We have constructured the model for P. falciparum making allowance of chloroquine resistance. We distinguish the infection of resistance strains from that of sensitive strains in both the human and the vector populations. Since the overall parasite rate and the parasite rate of gametocytes for P.　falciparum are strongly dependent on age, the human population is divided into 7 age groups in the model. The epidemiological parameters are determined by malariological survey in northeastern Guadalcanal (Ishii et al.) and the sporozoite rate in vector population is assumed as 0.1% based on the entomological study (Harada et al.) Our study aims at estimating the effect of mass drug administration under the presence of drug-resistance and also analyzing the escalation of drug-resistance through the transmission model for P. falciparum which can deal with chloroquine resistance. en-copyright= kn-copyright= en-aut-name=ChenTiantian en-aut-sei=Chen en-aut-mei=Tiantian kn-aut-name=陳甜甜 kn-aut-sei=陳 kn-aut-mei=甜甜 aut-affil-num=1 ORCID= en-aut-name=NishinaTomohiko en-aut-sei=Nishina en-aut-mei=Tomohiko kn-aut-name=仁科朝彦 kn-aut-sei=仁科 kn-aut-mei=朝彦 aut-affil-num=2 ORCID= en-aut-name=HisakaneNaoto en-aut-sei=Hisakane en-aut-mei=Naoto kn-aut-name=久兼直人 kn-aut-sei=久兼 kn-aut-mei=直人 aut-affil-num=3 ORCID= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Solomon Islands kn-keyword=Solomon Islands en-keyword=Plasmodium falciparum kn-keyword=Plasmodium falciparum en-keyword=drug resistance kn-keyword=drug resistance en-keyword=model kn-keyword=model END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=19 end-page=26 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Hydrodynamic and structural simulation by a particle approach kn-title=粒子的アプローチによる構造・流体シミュレーション en-subtitle= kn-subtitle= en-abstract= kn-abstract=This paper is a research report concerning the hydrodynamic simulation and the structural simulation by a particle approach. The proposal particle method model is introduced in this report, and the calculation example by the calculation code which uses the proposal model is shown. The high possibility of the particle method is shown by calculation examples which is difficult to solve by FDM and FEM. It is shown by caliculation examples of both the hydrodynamic and the structure analysis problems that the proposal model enables us to treat the fluid and the structure in a unified way. en-copyright= kn-copyright= en-aut-name=MoritaToshimasa en-aut-sei=Morita en-aut-mei=Toshimasa kn-aut-name=守田利昌 kn-aut-sei=守田 kn-aut-mei=利昌 aut-affil-num=1 ORCID= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=(株)日本総合研究所 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Particle kn-keyword=Particle en-keyword=Simulation kn-keyword=Simulation en-keyword=Hydrodynamic analysis kn-keyword=Hydrodynamic analysis en-keyword=Structural analysis kn-keyword=Structural analysis END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=27 end-page=30 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Kernel density estimation on the interval kn-title=区間上のデータに対するカーネル密度推定法 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In the field of data analysis, including environmental data, it is important to know the shape of underlying density function. In this case, we often use histogram which provides an information about the board line of density's curve. However histogram can not be the best method when the true density function is continuous, as is often the cases. On the other hand, kernel density estimator is another popular one which gives a continuous function. In some practical cases, however, there is a case that some knowledges about the range of the data are previously given. For instance, data of percentage, such as mortality rate, only takes the values on [0,1]. This paper considers two different modifications in kernel density estimator for the data on known interval and compares them. en-copyright= kn-copyright= en-aut-name=UekiMasao en-aut-sei=Ueki en-aut-mei=Masao kn-aut-name=植木優夫 kn-aut-sei=植木 kn-aut-mei=優夫 aut-affil-num=1 ORCID= en-aut-name=FuedaKaoru en-aut-sei=Fueda en-aut-mei=Kaoru kn-aut-name=笛田薫 kn-aut-sei=笛田 kn-aut-mei=薫 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=kernel density estimator kn-keyword=kernel density estimator en-keyword=adaptive bandwidth kn-keyword=adaptive bandwidth en-keyword=data on finite interval kn-keyword=data on finite interval END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=31 end-page=41 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Socially Responsible Investment to Japanese Companies kn-title=社会的責任投資の視点から評価した日本企業の環境対策 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Recently, Socially Responsible Investment, which is a policy of investment regarding with companies' social, environmental and moral value, attracts attention of investors. However, there are little data to explain the effectiveness of the SIR in Japan. In this paper we report the relation between environmental management and stock price of Japanese companies. en-copyright= kn-copyright= en-aut-name=IkedaYousuke en-aut-sei=Ikeda en-aut-mei=Yousuke kn-aut-name=池田陽介 kn-aut-sei=池田 kn-aut-mei=陽介 aut-affil-num=1 ORCID= en-aut-name=FuedaKaoru en-aut-sei=Fueda en-aut-mei=Kaoru kn-aut-name=笛田薫 kn-aut-sei=笛田 kn-aut-mei=薫 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Socially Responsible Investment kn-keyword=Socially Responsible Investment en-keyword=Environmental rating kn-keyword=Environmental rating en-keyword=Eco fund kn-keyword=Eco fund END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=29 end-page=40 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Variable selection besed on global score estimation and its numerical investigation kn-title=合成変数の推定を利用した項目選択とその数値的検討 en-subtitle= kn-subtitle= en-abstract= kn-abstract=A variable selection method using global score estimation is proposed, which is applicable as a selection criterion in any multivariate method without external variables such as principal component analysis. This method selects a reasonable subset of variables so that the global scores, e.g. principal component scores, which are computed based on the selected variables, approximate the original global scores as well as possible in the context of the least squares. Three computational steps are proposed to estimate the scores according to how to satisfy the restriction that the estimated global scores are mutually uncorrelated. Three different examples are analyzed to demonstrate the performance and usefulness of the proposed method numerically, in which three steps are evaluated and the results obtained using four cost-saving selection procedures are compared. en-copyright= kn-copyright= en-aut-name=MoriYuichi en-aut-sei=Mori en-aut-mei=Yuichi kn-aut-name=森裕一 kn-aut-sei=森 kn-aut-mei=裕一 aut-affil-num=1 ORCID= en-aut-name=FuedaKaoru en-aut-sei=Fueda en-aut-mei=Kaoru kn-aut-name=笛田薫 kn-aut-sei=笛田 kn-aut-mei=薫 aut-affil-num=2 ORCID= en-aut-name=IizukaMasaya en-aut-sei=Iizuka en-aut-mei=Masaya kn-aut-name=飯塚誠也 kn-aut-sei=飯塚 kn-aut-mei=誠也 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山理科大学総合情報学部 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=principal components kn-keyword=principal components en-keyword=least square kn-keyword=least square en-keyword=orthogonalization kn-keyword=orthogonalization en-keyword=cost-saving selection kn-keyword=cost-saving selection END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=43 end-page=49 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Modeling of fiber reinforced concrete by the homogenization method en-subtitle= kn-subtitle= en-abstract= kn-abstract=The simulation of mechanical bahavior of steel fiber reinforced concrete SFRC is introduced utilizing the homogenization method. The random distribution of fibers has been converted to a periodic distribution. Using the periodicity assumption, the boundary conditions for the unit cell are derived. The homogenized stiffness matrix is determined in elastic and plastic range. A numerical example to study the effect of the volume fraction of fibers is introduced. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Saif EldeenS. A. kn-aut-sei=Saif Eldeen kn-aut-mei=S. A. aut-affil-num=1 ORCID= en-aut-name=TaniguchiTakeo en-aut-sei=Taniguchi en-aut-mei=Takeo kn-aut-name=谷口健男 kn-aut-sei=谷口 kn-aut-mei=健男 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=fiber reinforced concrete kn-keyword=fiber reinforced concrete en-keyword=composite materials kn-keyword=composite materials en-keyword=homogenization kn-keyword=homogenization en-keyword=periodicity kn-keyword=periodicity en-keyword=finite element kn-keyword=finite element END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=51 end-page=55 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Laboratory Verification of a Proposed New Method to Determine the In-Situ Effective Porosity of Unsaturated Soil en-subtitle= kn-subtitle= en-abstract= kn-abstract=A laboratory validation of a proposed new method of determining the in-situ effective porosity of unsaturated soils was carried out on unsaturated river sand. The proposed method consists of boring a small diameter hole into the soil and inserting an Amplitude Domain Reflectometry (ADR) probe at the bottom part of the hole. Water is supplied into the hole till saturation and later de-saturated. The water content with time is determined from the ADR probe voltage potential readings. The effective porosity is determined from the difference between the saturated and de-saturated water contents. However, in the laboratory, the water is supplied through the top and bottom parts of the sample. From the experiments the obtained effective porosity ranged from 0.28 to 0.29 for wetting from the top with an average of 0.287 and 0.29 to 0.30 for wetting from the bottom with an average of 0.293. The determined effective porosity ranged from 71.7-73.3% of the real initial porosity of 0.40 of the river sand. The maximum attained degree of saturation during the experiment was 91%. The results indicated that the method will be suitable and useful in determining the effective porosity of medium grained unsaturated soils. en-copyright= kn-copyright= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=1 ORCID= en-aut-name=KomatsuMitsuru en-aut-sei=Komatsu en-aut-mei=Mitsuru kn-aut-name=小松満 kn-aut-sei=小松 kn-aut-mei=満 aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AkudagoJohn Apambilla kn-aut-sei=Akudago kn-aut-mei=John Apambilla aut-affil-num=3 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=ShinshiYoshihide kn-aut-sei=Shinshi kn-aut-mei=Yoshihide aut-affil-num=4 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KawakamiKenji kn-aut-sei=Kawakami kn-aut-mei=Kenji aut-affil-num=5 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KumamaruKoji kn-aut-sei=Kumamaru kn-aut-mei=Koji aut-affil-num=6 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 affil-num=5 en-affil= kn-affil=岡山大学 affil-num=6 en-affil= kn-affil=岡山大学 en-keyword=Underground dam kn-keyword=Underground dam en-keyword=Effective porosity kn-keyword=Effective porosity en-keyword=Storage capacity kn-keyword=Storage capacity en-keyword=Freshwater development kn-keyword=Freshwater development END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=41 end-page=49 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=MUNICIPAL SOLID WASTE MANAGEMENT IN INDONESIA: STATUS AND THE STRATEGIC ACTIONS en-subtitle= kn-subtitle= en-abstract= kn-abstract=In Indonesia, municipal solid waste (MSW) is becoming increasing complex due to variety of reasons like the increasing quantity of MSW, rising public awareness and municipal administration policies in different cities and surrounding regencies. After the landslide accident at Bandung city disposal site, most of related agencies are trying their level best to improve the situation. Against this backdrop, this paper attempts to analyze the present system of MSW addressing variety of aspects such as quantity and composition of MSW being generated, operational management, legal system as well as financial aspect. The systematic assessment has revealed the problem like lack of legal framework, low coverage, improper waste storage, less encouragement for composting, and lack of proper disposal practices. Finally, an action plan is presenting suggestion for immediate and future addressing the issues like the operational management, institutional, financial aspect, public participation & environmental education. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=ChaerulMochammad kn-aut-sei=Chaerul kn-aut-mei=Mochammad aut-affil-num=1 ORCID= en-aut-name=TanakaMasaru en-aut-sei=Tanaka en-aut-mei=Masaru kn-aut-name=田中勝 kn-aut-sei=田中 kn-aut-mei=勝 aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=V. ShekdarAshok kn-aut-sei=V. Shekdar kn-aut-mei=Ashok aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=municipal solid waste kn-keyword=municipal solid waste en-keyword=strategic actions kn-keyword=strategic actions en-keyword=Indonesia kn-keyword=Indonesia END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=57 end-page=64 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Measuring Method of Water Content for High compacted Bentonite Block by using Frequency Domain Reflectometry kn-title=FDR法による高配合圧縮ベントナイト系材料の水分量測定方法に関する研究 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In the high-level radioactive waste disposal project, in order to know the infiltration behavior, it have to be examined that the bentonite buffer material is used as a barrier, and the measuring device of moisture with the high accuracy is required. In this study it is discussed the usefulness for Frequency Domain Refrectometry (FDR) method through the measuring dielectric constant and making the calibration curve for the several kinds of bentonite material block (pure and silica sand mixing). en-copyright= kn-copyright= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=1 ORCID= en-aut-name=KomatsuMitsuru en-aut-sei=Komatsu en-aut-mei=Mitsuru kn-aut-name=小松満 kn-aut-sei=小松 kn-aut-mei=満 aut-affil-num=2 ORCID= en-aut-name=ChijimatsuMasakazu en-aut-sei=Chijimatsu en-aut-mei=Masakazu kn-aut-name=千々松正和 kn-aut-sei=千々松 kn-aut-mei=正和 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=間組技術･環境本部原子力部 en-keyword=Measuring syatem kn-keyword=Measuring syatem en-keyword=Bentonite kn-keyword=Bentonite en-keyword=Volumetric mousture content kn-keyword=Volumetric mousture content en-keyword=Frequency domain reflectometry kn-keyword=Frequency domain reflectometry END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=99 end-page=106 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=From Fate to Faith and Soil to Cell: Estimation of Phosphate (Pi) Uptake Rate, Pi-Uptake Kinetics and Relative Growth Rate are Important Parameters to Scavenge Pi by Brassica Cultivars under P-Starved Environment en-subtitle= kn-subtitle= en-abstract= kn-abstract=As a rule, ion uptake by plant cells and roots has features of saturation kinetics. This is in accordance with the assumption of control, as for example by the number of binding sites of ions (carriers, permeases), or the capacity of the proton efflux pumps, in the plasma membrane and tonoplast. Solute transport across membranes is carrier mediated transport. Protein macromolecules integrated into the membrane matrix seems to be the carriers. The carrier-mediated process is subject to kinetics assumig that the number of carriers (binding sites) in the membranes is limited. Kinetics of ion transport through a membrane is considered equivalent to relationship between an enzyme and its substrate. To obtain plants of different P status, two genetically diverse Brassica cultivars (P-tolerant 'Con-1' and P-sensitive 'Gold Rush') were grown for several weeks in nutrient solution culture media. P-uptake kinetics of the roots with intact plants in short-term experiments by monitoring P depletion in culture media revealed that P-tolerant 'Con-1' cultivar had favorable characteristics for P-uptake because of high I(max) or V(max) and low K(m) or 1/2 I(max) value than P-sensitive 'Gold Rush' cultivar. By plotting relative growth rate (RGR) and internal P-concentration (PNC) among P-tolerant (group I; Brown Raya, Con-1, Rainbow, Dunkled and Peela Raya) and P-sensitive (group II; Toria, Sultan Raya, B.S.A, Toria Selection and Gold Rush) cultivars revealed that group I cultivars showed large metabolic fraction and small structural fraction than group II cultivars which provided basis for P-stress tolerance. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AkhtarM. Shahbaz kn-aut-sei=Akhtar kn-aut-mei=M. Shahbaz aut-affil-num=1 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=2 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=3 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KhanMd. H. R kn-aut-sei=Khan kn-aut-mei=Md. H. R aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Brassica kn-keyword=Brassica en-keyword=Membrane binding sites kn-keyword=Membrane binding sites en-keyword=Carrier-mediated transport kn-keyword=Carrier-mediated transport en-keyword=I(max) or V(max), K(m) Pi-uptake rate kn-keyword=I(max) or V(max), K(m) Pi-uptake rate en-keyword=RGR kn-keyword=RGR END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=51 end-page=61 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A Study on the Assessment of Management Frameworks for Waste Electronic Home Appliances en-subtitle= kn-subtitle= en-abstract= kn-abstract=Serious adverse impacts on the environment and human health from the recycling and disposal of electronic waste have occurred in the past and continue to occur in China today, due to the lack of a national management strategy. With aiming to support the management strategy development, a study was carried out to plan and quantitatively evaluate the optional management frameworks for the selected five main types of large electronic home appliances in Beijing, the capital city and a typically big municipality in China. This paper outlined the main findings yielded from the series of assessment studies which started from the generation amount prediction and material flow analysis of the used electronic appliances, planning and optimization of the collection & transportation frameworks and ended at the economic evaluation of the optional recycling processes for the waste appliances. Although the revenue could be expected from the result of isolated evaluation of the recycling processes, the entire system will be economically unavailable if the used appliances are still collected from the owners at current prices. The traditional understanding of householders on the values of their used appliances should be changed in Beijing and China as a whole. Establishment of a formal collection system that could take back the used appliances at lower prices (less than 40% of the current level) is the key for the construction of a formal management framework with sustainability. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=LiuXianbing kn-aut-sei=Liu kn-aut-mei=Xianbing aut-affil-num=1 ORCID= en-aut-name=TanakaMasaru en-aut-sei=Tanaka en-aut-mei=Masaru kn-aut-name=田中勝 kn-aut-sei=田中 kn-aut-mei=勝 aut-affil-num=2 ORCID= en-aut-name=MatsuiYasuhiro en-aut-sei=Matsui en-aut-mei=Yasuhiro kn-aut-name=松井康弘 kn-aut-sei=松井 kn-aut-mei=康弘 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Waste electronic home appliances kn-keyword=Waste electronic home appliances en-keyword=Management framework kn-keyword=Management framework en-keyword=Assessment kn-keyword=Assessment en-keyword=Beijing kn-keyword=Beijing en-keyword=China kn-keyword=China END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=65 end-page=74 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Regional Inequalities among NUTS Level-1 Regions and Solution Efforts of Turkey en-subtitle= kn-subtitle= en-abstract= kn-abstract=Regional development and regional planning subjects are very closely linked with the development projects in Turkey as much as in the world. The main applications and studies are usually based on the elimination of disparities among regions. Within this framework, this study has firstly aimed to set out the regional development objectives in Turkey. Secondly, we tried to find out the effect of new regional approaches on Turkish regional structure. Hence, as an approach different from other studies, we focused on NUTS (Nomenclature of Territorial Units for Statistics) regions instead of geographical units (regions) studies. In the following parts of the study, thirdly, the efforts of Turkey about the regional development have been discussed and assessed by using Neoclassic Growth Model in terms of per capita income distributions for new region groups. To compare the results of analysis among regional units, the most important development projects for Turkey were also taken as a different approach unlike other sudies. Previous studies based on geographic regions showed that the basic tendency of per capita income distribution is 'Divergence' unlike expected 'Convergence' in Turkey, but in our study, we found more optimistic results for Turkey, in which per capita income distributions have a tendency to converge after 1997. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=DincsoyEnver Erdinc kn-aut-sei=Dincsoy kn-aut-mei=Enver Erdinc aut-affil-num=1 ORCID= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Regional Development kn-keyword=Regional Development en-keyword=Turkey kn-keyword=Turkey en-keyword=NUTS kn-keyword=NUTS en-keyword=Regional Development Projects kn-keyword=Regional Development Projects en-keyword=Convergence kn-keyword=Convergence END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=63 end-page=70 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Two dimensional homogenized models of steel fiber reinforced concrete en-subtitle= kn-subtitle= en-abstract= kn-abstract=The homogenization method is used to model steel fiber reinforced concrete SFRC by converting the random distribution of fibers to a periodic one. The periodic distribution is chosen to hold similar properties of the composite material in both perpendicular directions to represent an average approximation for the random distribution. The material is modeled as a composite with brittle matrix and elastic fibers. Two patterns of the unit cell are examined to establish the homogenized stiffiness matrix in elastic and plastic stages. A rigid plastic bonding is considered between matrix and fibers. The smeared crack model is used to represent the nonlinearity of concrete. The validity of the homogenized model is examined by comparing the numerical results with the experimental results. The results show good agreement with the experimental work when a suitable pattern of the unit cell is used. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Saif EideenS. A. kn-aut-sei=Saif Eideen kn-aut-mei=S. A. aut-affil-num=1 ORCID= en-aut-name=TaniguchiTakeo en-aut-sei=Taniguchi en-aut-mei=Takeo kn-aut-name=谷口健男 kn-aut-sei=谷口 kn-aut-mei=健男 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=fiber reinforced concrete kn-keyword=fiber reinforced concrete en-keyword=composite materials kn-keyword=composite materials en-keyword=homogenization kn-keyword=homogenization en-keyword=periodicity kn-keyword=periodicity en-keyword=finite element kn-keyword=finite element END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=75 end-page=81 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=An Assessment of the Southeastern Anatolia Region in Turkey in terms of the Sustainable Development Tatgets en-subtitle= kn-subtitle= en-abstract= kn-abstract=This study aims to examine the Southeastern Anatolia Project in Turkey, which contains irrigation, energy and drinking water development schemes. The project is the biggest regional development effort ever undertaken by Turkish Government and has influenced the sustainable economic and human development targets. With the completion of each step of the project, it has been expected that there have been many important economic and social changes in Turkish regions, especially the southeast part of Turkey (called as "Southeastern Anatolia Region") and its surrounding areas. The project also interests in both Turkey and its related regions and sustainability is a major issue of concern. Following a brief introduction of the project, the paper examines the type of recent social-economic changes in the region and Turkey in terms of sustainable development components. Under the light of our investigations from different perspectives, it is observed that GAP region with its development project is very far from expectations in the point of sustainability. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=DincsoyEnver Erdinc kn-aut-sei=Dincsoy kn-aut-mei=Enver Erdinc aut-affil-num=1 ORCID= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Sustainability kn-keyword=Sustainability en-keyword=Southeastern Anatolia Region kn-keyword=Southeastern Anatolia Region en-keyword=GAP kn-keyword=GAP en-keyword=Regional Development kn-keyword=Regional Development en-keyword=GDP per capita kn-keyword=GDP per capita en-keyword=Turkey kn-keyword=Turkey END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=83 end-page=88 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Characteristics of Dredged Sludges by Desiccation kn-title=乾燥による底泥の性質変化 en-subtitle= kn-subtitle= en-abstract= kn-abstract=To examine the possible reuse of dredged sludge in view of construction material, physico-chemical properties and geotechnical characteristics of desiccated sludge are investigated through laboratory experiments. The consistency test, the pH test, the XRF test and the X-ray diffraction analysis are carried out for physico-chemical proteries, and the conolidation test and the permeability test are made for geotechnical characteristics. It is concluded that the history of desiccation changes the consistency of sludge and affects its permeability and consolidation bahavior. en-copyright= kn-copyright= en-aut-name=TakisawaTomoaki en-aut-sei=Takisawa en-aut-mei=Tomoaki kn-aut-name=滝澤倫顕 kn-aut-sei=滝澤 kn-aut-mei=倫顕 aut-affil-num=1 ORCID= en-aut-name=NishimuraShin-ichi en-aut-sei=Nishimura en-aut-mei=Shin-ichi kn-aut-name=西村伸一 kn-aut-sei=西村 kn-aut-mei=伸一 aut-affil-num=2 ORCID= en-aut-name=MurakamiAkira en-aut-sei=Murakami en-aut-mei=Akira kn-aut-name=村上章 kn-aut-sei=村上 kn-aut-mei=章 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Dredged sludges kn-keyword=Dredged sludges en-keyword=consolidation kn-keyword=consolidation en-keyword=permeability kn-keyword=permeability en-keyword=solidification material kn-keyword=solidification material en-keyword=XRF kn-keyword=XRF END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=71 end-page=76 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The effect of aeration and water intake on the water quality in the Asahi River Dam reservoir en-subtitle= kn-subtitle= en-abstract= kn-abstract=The Asahi River Dam reservoir is one of the important fresh water resources in Okayama, Japan, and its eutrophication has been noted since the 1980s. Therefore, aeration has been applied to control the growth of phytoplankton. In this study, we discussed the effect of aeration and water-intake depth on the water quality distribution in the reservoir, based on numerical simulation and observation. The principal conclusions were as follows:(1) The numerical simulation models applied here reproduced observations fairly well. (2) Water intake from the surfacce layer reduced the concentration of chlorophyll a in the surface layers. Water intake from the middle or bottom layer improved the deficit of dissolved oxygen in the bottom layers. (3) Aeration together with water intake from the middle or bottom layer improved the deficit of dissolved oxygen in the bottom layers. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=ChenW. kn-aut-sei=Chen kn-aut-mei=W. aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=YoshidaR. kn-aut-sei=Yoshida kn-aut-mei=R. aut-affil-num=2 ORCID= en-aut-name=KawaraOsami en-aut-sei=Kawara en-aut-mei=Osami kn-aut-name=河原長美 kn-aut-sei=河原 kn-aut-mei=長美 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=Nimi Branch Office of Okayama Prefecture affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=the Asahi River Dam Reservoir kn-keyword=the Asahi River Dam Reservoir en-keyword=numerical simulation kn-keyword=numerical simulation en-keyword=eutrophication kn-keyword=eutrophication en-keyword=water intake depth kn-keyword=water intake depth en-keyword=dissolved oxygen kn-keyword=dissolved oxygen en-keyword=chlorophylla kn-keyword=chlorophylla END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=45 end-page=51 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The qualitative properties of mathematical models for HIV infection en-subtitle= kn-subtitle= en-abstract= kn-abstract=Qualitative analysis for the model of HIV infection in vivo presented by Perelson and Nelson are developed. The local stability analysis is done for the interior equilibrium, and it is shown that, for some paramter value, the interior equilibrium can be unstable and a Hopf bifurcation can occur. It is shown that the boundary equilibrium is globally asymptotically stable. Last, it is shown that this system is permanent. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=IuchiTakuma kn-aut-sei=Iuchi kn-aut-mei=Takuma aut-affil-num=1 ORCID= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=HIV kn-keyword=HIV en-keyword=Mathematical model kn-keyword=Mathematical model en-keyword=Stability kn-keyword=Stability en-keyword=Liapunov function kn-keyword=Liapunov function END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=53 end-page=58 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Experimental and Computational Water Analysis for Kojima Lake en-subtitle= kn-subtitle= en-abstract= kn-abstract=We study a wind-generated current in Kojima Lake. We introduce an experimantal result which was obtained using a float equipped with a GPS unit. We also present a result of numerical study in which a result from finite element analysis of flow is applied to the momentum equation of the float to simulate its motion. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=NumaguchiSatoshi kn-aut-sei=Numaguchi kn-aut-mei=Satoshi aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Med MahmoudOuld Med Lemine kn-aut-sei=Med Mahmoud kn-aut-mei=Ould Med Lemine aut-affil-num=2 ORCID= en-aut-name=WatanabeMasaji en-aut-sei=Watanabe en-aut-mei=Masaji kn-aut-name=渡辺雅二 kn-aut-sei=渡辺 kn-aut-mei=雅二 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=water environment kn-keyword=water environment en-keyword=global positioning system kn-keyword=global positioning system en-keyword=numerical simulation kn-keyword=numerical simulation END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=59 end-page=64 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Study on Effects of the Density Current Generator by Experiment and Measurement kn-title=実験と計測に基づく密度流拡散装置の効果に関する考察 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The density current generator (Manufacturer: Nakashima Propeller Co., Ltd., Patent owner: Hitachi Metals, Ltd.) is designed to generate vertical circulation over a wide water area harnessing the density current effect. We present some experimental results that we obtained using a float equipped with a GPS unit to study water flows generated by a density current generator unit set in S-Reservoir in Okayama Prefecture. We also present some measured results concerning the water temperature around the unit. We discuss its effects observing the experimental results and the measured results. en-copyright= kn-copyright= en-aut-name=WatanabeMasaji en-aut-sei=Watanabe en-aut-mei=Masaji kn-aut-name=渡辺雅二 kn-aut-sei=渡辺 kn-aut-mei=雅二 aut-affil-num=1 ORCID= en-aut-name=YamatogiToshio en-aut-sei=Yamatogi en-aut-mei=Toshio kn-aut-name=山磨敏夫 kn-aut-sei=山磨 kn-aut-mei=敏夫 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=ナカシマプロペラ株式会社技術本部開発グループ en-keyword=density current kn-keyword=density current en-keyword=stratification kn-keyword=stratification en-keyword=water environment kn-keyword=water environment END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=65 end-page=68 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Numerical Simulation of a Flow Induced by a Pumping-up Facilities in a Lake kn-title=湧昇循環装置によって誘起される湖沼内流れの数値シミュレーション en-subtitle= kn-subtitle= en-abstract= kn-abstract=The purpose of this research is solving the flow in a lake which caused by a fan who rotates at the low speed set on the water surface for the purpose of water quality purification of a lake. Although it is shown clearly by various experiments that the water quality in a lake improved by operation of this kind of equipment, the mechanism of the flow was not fully understood. In this research simulation of the flow which was caused by this equipment was carried out numerically, and the aspect of the flow corresponding to various conditions or the form of a lake was investigated. en-copyright= kn-copyright= en-aut-name=SuitoHiroshi en-aut-sei=Suito en-aut-mei=Hiroshi kn-aut-name=水藤寛 kn-aut-sei=水藤 kn-aut-mei=寛 aut-affil-num=1 ORCID= en-aut-name=NoukaMasakatsu en-aut-sei=Nouka en-aut-mei=Masakatsu kn-aut-name=苗加昌克 kn-aut-sei=苗加 kn-aut-mei=昌克 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Fluid dynamics kn-keyword=Fluid dynamics en-keyword=Numerical simulation kn-keyword=Numerical simulation END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=69 end-page=73 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=CO(2) Fluxes Measured by Eddy Correlation and Aerodynamic Techniques kn-title=傾度法と渦相関法で測定した二酸化炭素フラックスの比較 en-subtitle= kn-subtitle= en-abstract= kn-abstract=To elucidate the seasonal and inter-annual variation of CO(2) exchanges between the atmosphere and cultivated field in Japan, the CO(2) flux has been measured by the eddy correlation technique at the experimental farm of Agricultural Faculty, Okayama University since December in 1998. The CO(2) sensor, however, does not work under rainy conditions. The improved aerodynamic technique was developed and used to cover CO(2) flux data which were not collected. This technique gives reasonable CO(2) fluxes even in rainy days. The reliability of the technique was also confirmed by comparing CO(2) fluxes with those measured by the eddy correlation technique using data in fine weather conditions. en-copyright= kn-copyright= en-aut-name=InoharaSachiko en-aut-sei=Inohara en-aut-mei=Sachiko kn-aut-name=猪原幸子 kn-aut-sei=猪原 kn-aut-mei=幸子 aut-affil-num=1 ORCID= en-aut-name=IwataToru en-aut-sei=Iwata en-aut-mei=Toru kn-aut-name=岩田徹 kn-aut-sei=岩田 kn-aut-mei=徹 aut-affil-num=2 ORCID= en-aut-name=OhtakiEiji en-aut-sei=Ohtaki en-aut-mei=Eiji kn-aut-name=大滝英治 kn-aut-sei=大滝 kn-aut-mei=英治 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=CO(2) flux kn-keyword=CO(2) flux en-keyword=Eddy correlation technique kn-keyword=Eddy correlation technique en-keyword=Aerodynamic techniques kn-keyword=Aerodynamic techniques en-keyword=Dimensionless profile kn-keyword=Dimensionless profile END start-ver=1.4 cd-journal=joma no-vol=2 cd-vols= no-issue=1 article-no= start-page=25 end-page=32 dt-received= dt-revised= dt-accepted= dt-pub-year=1997 dt-pub=19970110 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Applied Fiber Optic Measurement for Geohydraulic Engineering en-subtitle= kn-subtitle= en-abstract= kn-abstract=Engineers have long sought the possibility of measuring parameters such as temperature and pressure continuously in the underground with high precision, high spatial resolution and high band width of parameters. Distributed fibre optic measurement offers the use of a very fast, robust, precise, light and small gauges with an high spatial resolution. In this paper we would like to compile fibre-optic measure-methods which are available now for projects in geohydraulical engineering. This paper will propose new problems for future research work on parameter identification for such parameters as conductivity and anisotropy. en-copyright= kn-copyright= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=SchreckMartin kn-aut-sei=Schreck kn-aut-mei=Martin aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=119 end-page=123 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Measurement of root system with growth of oriental pickling melon. kn-title=白瓜の生育に伴う根系の測定 en-subtitle= kn-subtitle= en-abstract= kn-abstract=It is important to clarify how the soil moisture changes by irrigation and how moisture is consumed by absorption of root, to plan irrigation appropriately in upland field. And, it is thought that clarifying the growth of the root can be important information in the water management, because the amount and the pattern of root water uptake change depending on the growth stage. However, there are not too much a lot of researches that measure the root, in addition, the example intended for crops of 'Gourd family (scientific name:Cucurbitaceae)' is not found. Therefore, for oriental pickling melon, it measured how for the root system to grow up as crop grew every three weeks. The results of this study may be summarized as: 1) Root amount increased with the growth of crops, and the majority of the root existed to 20cm in depth. A lot of rootlets with the role of water uptake existed outside of from 10 to 20cm. 2) Root length has grown up in horizontal and vertical direction at a dash at the stage of growing initial. 3) It was able to be confirmed to the growth of the ground part and the root that the length and amount either also had implications. Moreover, root amount and plant caver ratio drew similar curve. en-copyright= kn-copyright= en-aut-name=HiranoEmi en-aut-sei=Hirano en-aut-mei=Emi kn-aut-name=平野絵美 kn-aut-sei=平野 kn-aut-mei=絵美 aut-affil-num=1 ORCID= en-aut-name=MorimotoYuji en-aut-sei=Morimoto en-aut-mei=Yuji kn-aut-name=森本祐二 kn-aut-sei=森本 kn-aut-mei=祐二 aut-affil-num=2 ORCID= en-aut-name=MiuraTakeshi en-aut-sei=Miura en-aut-mei=Takeshi kn-aut-name=三浦健志 kn-aut-sei=三浦 kn-aut-mei=健志 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=root growth kn-keyword=root growth en-keyword=oriental pickling melon kn-keyword=oriental pickling melon END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=75 end-page=79 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=The Study of Monin-Obukhov Similarity of Vertical Wind Velocity and Scalar Quantities in the Atmospheric Surface Layer kn-title=接地境界層における鉛直風速およびスカラー量に関するモニン・オブコフ相似則 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Standard deviations for vertical wind velocity and scalar quantities, such as carbon dioxide,c, and water vapor,q, were analyzed on the basis of Monin-Obukhov similarity theory in the atmospheric surface layer. The correlation coefficient between scalar quantities c and q ,|R(cq)|, was derived from the similarity functions and can be expressed as the ratio of B(q)/B(c)(B(q)?B(c)), where parameter B is the value of the normalized standard deviation of carbon dioxide and water vapor at neutral conditions. en-copyright= kn-copyright= en-aut-name=UshikawaNozomi en-aut-sei=Ushikawa en-aut-mei=Nozomi kn-aut-name=牛川希望 kn-aut-sei=牛川 kn-aut-mei=希望 aut-affil-num=1 ORCID= en-aut-name=IwataToru en-aut-sei=Iwata en-aut-mei=Toru kn-aut-name=岩田徹 kn-aut-sei=岩田 kn-aut-mei=徹 aut-affil-num=2 ORCID= en-aut-name=OhtakiEiji en-aut-sei=Ohtaki en-aut-mei=Eiji kn-aut-name=大滝英治 kn-aut-sei=大滝 kn-aut-mei=英治 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Monin-Obukhov similarity theory kn-keyword=Monin-Obukhov similarity theory en-keyword=Standard deviation kn-keyword=Standard deviation en-keyword=Correlation coefficient kn-keyword=Correlation coefficient en-keyword=Carbon dioxide kn-keyword=Carbon dioxide en-keyword=Water vapor kn-keyword=Water vapor END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=125 end-page=130 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Comparison of micrometeorological environments inside and outside an oriental pickling melon greenhouse. kn-title=白瓜ビニールハウス内外での微気象環境の比較 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The use of greenhouses has rapidly increased after 1965, and the area became 11 times of 1965 as of 2001. Meteorological conditions and soil moisture environments inside a greenhouse are significantly different from those in the open field. These differences should be understandable to establish accurate predictions of water consumption and evapotranspiration inside a greenhouse which play important roles in the design of any irrigation system. This study aims to estimate the micrometeorological conditions inside an oriental pickling melon greenhouse which can be used for evapotranspiration calculations. Therefore, micrometeorological data were measured inside and outside the greenhouse for the comparison purposes. The results of this study may be summarized as: (1) Solar radiation inside the greenhouse was decreased about 30% of that of outside it by plastic film and frame. (2) Net radiation during the daytime inside the greenhouse was almost the same as the absorbed total short-wave radiation. (3) The difference of daytime mean air temperature inside and outside the greenhouse was between 3 and 4 degree Celsius in day average. (4) Both relative humidity and saturation deficit inside the greenhouse were higher than outside, and those were affected by ventilation. (5) Wind speed inside the greenhouse was greatly affected by opening rate of the house side. en-copyright= kn-copyright= en-aut-name=MorimotoYuji en-aut-sei=Morimoto en-aut-mei=Yuji kn-aut-name=森本祐二 kn-aut-sei=森本 kn-aut-mei=祐二 aut-affil-num=1 ORCID= en-aut-name=HiranoEmi en-aut-sei=Hirano en-aut-mei=Emi kn-aut-name=平野絵美 kn-aut-sei=平野 kn-aut-mei=絵美 aut-affil-num=2 ORCID= en-aut-name=MiuraTakeshi en-aut-sei=Miura en-aut-mei=Takeshi kn-aut-name=三浦健志 kn-aut-sei=三浦 kn-aut-mei=健志 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=greenhouse kn-keyword=greenhouse en-keyword=micrometeorology kn-keyword=micrometeorology en-keyword=oriental pickling melon kn-keyword=oriental pickling melon END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=81 end-page=85 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Heat Budget on Rice Field kn-title=水稲耕作地における熱収支 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Experience of flux measurements over tall canopies has revealed that the eddy flux of sensible plus latent heat is about 30% smaller than the available radiant energy flux. A systematic observation was carried out to investigate the imbalance problem on rice field. The rice field represents a complex system consisting of rice plant, irrigated water and soil. Date obtained in this experiment show that appreciable understimations of sensible and latent heat fluxes are not recognized but understimations of 15 to 23% are counted in the soil heat flux. en-copyright= kn-copyright= en-aut-name=YangDongmei en-aut-sei=Yang en-aut-mei=Dongmei kn-aut-name=楊冬梅 kn-aut-sei=楊 kn-aut-mei=冬梅 aut-affil-num=1 ORCID= en-aut-name=IwataToru en-aut-sei=Iwata en-aut-mei=Toru kn-aut-name=岩田徹 kn-aut-sei=岩田 kn-aut-mei=徹 aut-affil-num=2 ORCID= en-aut-name=MiuraTakeshi en-aut-sei=Miura en-aut-mei=Takeshi kn-aut-name=三浦健志 kn-aut-sei=三浦 kn-aut-mei=健志 aut-affil-num=3 ORCID= en-aut-name=OhtakiEiji en-aut-sei=Ohtaki en-aut-mei=Eiji kn-aut-name=大滝英治 kn-aut-sei=大滝 kn-aut-mei=英治 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Heat budget kn-keyword=Heat budget en-keyword=Eddy correlation method kn-keyword=Eddy correlation method en-keyword=Sensible heat flux kn-keyword=Sensible heat flux en-keyword=Latent heat flux kn-keyword=Latent heat flux en-keyword=Soil heat flux kn-keyword=Soil heat flux END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=87 end-page=98 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Water Resources and Environmental Management in Ghana en-subtitle= kn-subtitle= en-abstract= kn-abstract=Three principal river basins are found in Ghana and the Volta River Basin is the major one, covering about three -quarters of Ghana. The basin is shared with Mali, Burkina Faso, Cote d'Ivoire, Togo and Benin. Water from the Volta River Basin is used for drinking water supply, generating hydro-electric power, irrigation, inland fisheries and lake transport. The sustainable management of the Volta River Basin is thus of great importance. Land use activities in the basin are thus closely monitored not only in Ghana, but also in the other riparian countries as well. This paper presents information and data on the water resources and environmental management of the Volta River Basin in Ghana. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Kankam-YeboahKwabena kn-aut-sei=Kankam-Yeboah kn-aut-mei=Kwabena aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Gyau-BoakyePhilip kn-aut-sei=Gyau-Boakye kn-aut-mei=Philip aut-affil-num=2 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=3 ORCID= en-aut-name=KomatsuMitsuru en-aut-sei=Komatsu en-aut-mei=Mitsuru kn-aut-name=小松満 kn-aut-sei=小松 kn-aut-mei=満 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=water resources kn-keyword=water resources en-keyword=environmental management kn-keyword=environmental management en-keyword=Volta River Basin kn-keyword=Volta River Basin en-keyword=Ghana kn-keyword=Ghana en-keyword=water utilization kn-keyword=water utilization END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=131 end-page=140 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A Survey Study of Residential Awareness on Utilization Function of Agricultural Water and Its Maintenance --A case study in Niwase and Natsukawa of Okayama City, Okayama Prefecture kn-title=農業用水路の地域用水機能とその維持管理に関する住民の意識調査　―岡山県岡山市庭瀬・撫川を事例として- en-subtitle= kn-subtitle= en-abstract= kn-abstract=The agricultural water has manifold functions for farming at community level. However, along with the difficulties to maintain the agriculture water path that are caused by the decreasing of farmers and the aging of the society, the agricultural water is losing its functions even that as water resource for local community. This paper presents a survey of the residential awareness on regional water utilization to find the possibility for the maintenance of agricultural water path. Economic evaluation is tried for the regional warter utilization function. This study is carried out at a regional level that covers both farming households and non farmers. Following three points can be confirmed based on the results of questionnaire survey. Firstly, local citizens admit that the agricultural water does have some values (3,037 Yen per household per year). Secondly, the higher the environmental awareness is, and the longer the citizen has lived there, the higher evaluation to function of the agricultural water can be observed. Thirdly, even within those who is holding high evaluation to the agricultural water, it is thought to be quite difficult to maintain the agricultural water path due to the aging of the society and uneven distribution of the participants. en-copyright= kn-copyright= en-aut-name=MakinoTota en-aut-sei=Makino en-aut-mei=Tota kn-aut-name=牧野透太 kn-aut-sei=牧野 kn-aut-mei=透太 aut-affil-num=1 ORCID= en-aut-name=MatsuokaTakanobu en-aut-sei=Matsuoka en-aut-mei=Takanobu kn-aut-name=松岡崇暢 kn-aut-sei=松岡 kn-aut-mei=崇暢 aut-affil-num=2 ORCID= en-aut-name=QiZhiyong en-aut-sei=Qi en-aut-mei=Zhiyong kn-aut-name=戚智勇 kn-aut-sei=戚 kn-aut-mei=智勇 aut-affil-num=3 ORCID= en-aut-name=ShinabeYosihiro en-aut-sei=Shinabe en-aut-mei=Yosihiro kn-aut-name=品部義博 kn-aut-sei=品部 kn-aut-mei=義博 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=agricultural water kn-keyword=agricultural water en-keyword=manifold functions for farming at community level kn-keyword=manifold functions for farming at community level en-keyword=local citizens kn-keyword=local citizens en-keyword=maintenance kn-keyword=maintenance en-keyword=Contingent Valuation Method kn-keyword=Contingent Valuation Method END start-ver=1.4 cd-journal=joma no-vol=2 cd-vols= no-issue=1 article-no= start-page=51 end-page=58 dt-received= dt-revised= dt-accepted= dt-pub-year=1997 dt-pub=19970110 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Measuring instrument of carbon dioxide concentration in seawater en-subtitle= kn-subtitle= en-abstract= kn-abstract=The Measuring instrument of carbon dioxide concentration in seawater (pCO(2)) is developed. The instrument consists of an equilibrator, a non-dispersive infrared gas analyzer (NDIR), a carrier gas generator and a processing signal generator. The equilibrator has a cross section of 3 cu and is 15 cm tall. The principle of pCO(2) measurement is based on the equilibration of a carrier gas phase with a seawater sample and subsequent determination of the carbon dioxide concentration in the carrier gas. The carrier gas circuit of the NDIR is opened to the atmosphere to maintain the carrier gas line at a barometric pressure. The present instrument can measure pCO(2) within the measuring error of about 2 ppm with sample water of about 180ml every 20 min. en-copyright= kn-copyright= en-aut-name=KishidaTakumi en-aut-sei=Kishida en-aut-mei=Takumi kn-aut-name=岸田巧 kn-aut-sei=岸田 kn-aut-mei=巧 aut-affil-num=1 ORCID= en-aut-name=WatanabeKeiichiro en-aut-sei=Watanabe en-aut-mei=Keiichiro kn-aut-name=渡辺桂一郎 kn-aut-sei=渡辺 kn-aut-mei=桂一郎 aut-affil-num=2 ORCID= en-aut-name=OhtakiEiji en-aut-sei=Ohtaki en-aut-mei=Eiji kn-aut-name=大滝英治 kn-aut-sei=大滝 kn-aut-mei=英治 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=99 end-page=110 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=DEM based Flood Extent Delineation in Dhaka City, Bangladesh en-subtitle= kn-subtitle= en-abstract= kn-abstract=Dhaka city, the capital of Bangladesh and home for more than 10 million people, has been affected by seasonal flooding almost in every year, however, the situation aggravates depending on rainfall and surrounding river waters. The aim of this paper is to delineate the flood extent in Dhaka city using digital elevation model (DEM), an integral part of geographic information system. Catastrophic floods of the 1988 and 1998 events are taken into consideration. Hydro-meteorological assessment of these events revealed that the 1988 flood was severe due to the lack of flood protection in the city together with transboundary flow of the major rivers while the 1998 flood was become deluge due to incessant monsoonal downpour along with early peaked of the river water levels. The 1998 event has done colossal damage in the city compare to the 1988 event. Flood extent estimation showed that DEM data is very precious to model inundation in the city, however, in order to be spatially explicit flood model, high resolution DEM is necessary. Finally, flood management issues are reviewed and found that combination of structural and nonstructural measures are necessary to help reducing flood induced losses and damage in the city. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=DewanA.M. kn-aut-sei=Dewan kn-aut-mei=A.M. aut-affil-num=1 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=2 ORCID= en-aut-name=KomatsuMitsuru en-aut-sei=Komatsu en-aut-mei=Mitsuru kn-aut-name=小松満 kn-aut-sei=小松 kn-aut-mei=満 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Dhaka City kn-keyword=Dhaka City en-keyword=Floods kn-keyword=Floods en-keyword=Digital Elevation Model kn-keyword=Digital Elevation Model en-keyword=1998 and 1988 Floods kn-keyword=1998 and 1988 Floods END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=141 end-page=149 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Rows-of-houses Preservation in Maniwa City of Katsuyama Area, Okayama Prefecture kn-title=岡山県真庭市勝山地区の町並み保存活動とその課題 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The aim of the study is to explain the present condition of the rows-of-houses preservation policy of Okayama Prefecture and to examine the samples in Maniwa city, Katsuyama area. Besides, the interview investigation was mainly conducted for residents in the rows-of-houses of preservation area in Katsuyama for giving the concluding remarks about the findings. The traditional private houses in Katsuyama preservation area were partially restored in the 1985-89 and 1993-97 fiscal years by the subsidy from the prefecture. Furthermore, Katsuyamacho at that time founded the subsidy system for maintaining rows-of-houses preservation area (about 25.3 ha) independently in 1993, restored 9 private houses, and made and updated the shop curtains; "Noren". In the point of the observable items, the ground warehouse of structures with gable tile-roofing is visible and it is also in use. Moreover, a latticed window structure, a white wall, and a sea cucumber wall constitute the charm of new rows-of-houses. A stone pavement follows on the riverside at the site facing the Asahi River. There are the remains of an arrival-and-departure place of a flat boat and a brewery, etc. According to our investigation in 2002, the residents were satisfied with "It is easy to live quietly", "the beauty of a natural landscape", "harmony of rows-of-houses and a shop curtain", and "a historical atmosphere", but the recognition of "the creation of active rows-of-houses" was unexpectedly low. Therefore, cooperation between residents and informational sharing are much more required. Consequently, since both the visitors and the residents are satisfied very much with each facilities, such as the whole rows-of-houses, a samurai residence, a brewery, and a restaurant etc., town planning is well organized and attained the priority targets. en-copyright= kn-copyright= en-aut-name=LuoYanjuan en-aut-sei=Luo en-aut-mei=Yanjuan kn-aut-name=羅燕娟 kn-aut-sei=羅 kn-aut-mei=燕娟 aut-affil-num=1 ORCID= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=江蘇大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Rows-of-houses Preservation kn-keyword=Rows-of-houses Preservation en-keyword=Katsuyama area kn-keyword=Katsuyama area en-keyword=Visitors kn-keyword=Visitors en-keyword=Residents kn-keyword=Residents END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=111 end-page=116 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Bumpers for reducing the effect of pounding between bridge decks en-subtitle= kn-subtitle= en-abstract= kn-abstract=The study addresses the influence of bumpers as reduction measures at the bridge decks. The considered devices are steel spring, steel spring with additional viscous damper or steel spring with additional friction element. Gap between bridge decks remains. The reduction measure is placed at one end of the neighbouring girders. The considered earthquakes are the 1994 Northridge earthquake and the 1995 Kobe earthquake. For the nonlinear analysis a finite element method is used. The investigation shows that compared to the other measures the best reduction of the pounding force can be achieved with a friction device. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=SuHai kn-aut-sei=Su kn-aut-mei=Hai aut-affil-num=1 ORCID= en-aut-name=TaniguchiTakeo en-aut-sei=Taniguchi en-aut-mei=Takeo kn-aut-name=谷口健男 kn-aut-sei=谷口 kn-aut-mei=健男 aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=ChouwNawawi kn-aut-sei=Chouw kn-aut-mei=Nawawi aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=reduction measure kn-keyword=reduction measure en-keyword=earthquake response kn-keyword=earthquake response en-keyword=bridge girder kn-keyword=bridge girder en-keyword=pounding kn-keyword=pounding en-keyword=viscous damping kn-keyword=viscous damping en-keyword=friction kn-keyword=friction END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=117 end-page=120 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Measurement of thermal conductivity in soils and application of de Vries model kn-title=土壌熱伝導率の測定と推定式の適用 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Thermal conductivity of soil samples were measured using a twin transient-state cylindrical-probe method. The system of measurement consists of DC power supply, data logger, personal computer, 100cc soil sample, reference material sample, and two heat probes. The typical results were as follows: (1) Thermal conductivity of soils increased according to an increase of soil water content. (2) The thermal conductivity of Toyoura sand was larger than one of Kuroboku soil. (3) The thermal conductivity estimated by de Vries model had good agreement with the measured value. en-copyright= kn-copyright= en-aut-name=MoroizumiToshitsugu en-aut-sei=Moroizumi en-aut-mei=Toshitsugu kn-aut-name=諸泉利嗣 kn-aut-sei=諸泉 kn-aut-mei=利嗣 aut-affil-num=1 ORCID= en-aut-name=SatoYuichi en-aut-sei=Sato en-aut-mei=Yuichi kn-aut-name=佐藤裕一 kn-aut-sei=佐藤 kn-aut-mei=裕一 aut-affil-num=2 ORCID= en-aut-name=SatoKoichi en-aut-sei=Sato en-aut-mei=Koichi kn-aut-name=佐藤幸一 kn-aut-sei=佐藤 kn-aut-mei=幸一 aut-affil-num=3 ORCID= en-aut-name=SasakiChoichi en-aut-sei=Sasaki en-aut-mei=Choichi kn-aut-name=佐々木長市 kn-aut-sei=佐々木 kn-aut-mei=長市 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=北里大学獣医畜産学部 affil-num=3 en-affil= kn-affil=北里大学獣医畜産学部 affil-num=4 en-affil= kn-affil=弘前大学農学生命科学部 en-keyword=Thermal conductivity kn-keyword=Thermal conductivity en-keyword=Twin transient-state cylindrical-probe method kn-keyword=Twin transient-state cylindrical-probe method en-keyword=de Vries model kn-keyword=de Vries model en-keyword=Volumetric water content kn-keyword=Volumetric water content END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=121 end-page=135 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Diversity of Agricultural Production and Its Change in Tottori Prefecture kn-title=鳥取県の農業生産の多様度とその変化 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper, diversity of agricultural production and its change was examined for some 45 years in Japan and for 1960, 1980, and 2000 in Tottori prefecture. The concept of entropy was used in order to measure the diversity of the agricultural production which consists of some sections. Agricultural production section in Japan has been diversified in the long run. The ratio of rice has been decreasing gradually for a policy of cutting back on the acreage under cultivation. Although the ratio of stock raising and fruits has increased, it tends in recent years to stagnate. The rate of vegetables has increased remarkably. Combination type for every municipalities was determined with the standard value A method, and complemented examination of agricultural diversity. en-copyright= kn-copyright= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Agricultural Production kn-keyword=Agricultural Production en-keyword=Diversity kn-keyword=Diversity en-keyword=Entropy kn-keyword=Entropy en-keyword=Sustainability kn-keyword=Sustainability en-keyword=Tottori Prefecture kn-keyword=Tottori Prefecture END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=151 end-page=156 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The Importance of Interactive Information Issues in terms of Earthquake Disasters with a Focus on Kobe Case en-subtitle= kn-subtitle= en-abstract= kn-abstract=More than billions of years, Earth activity and earthquakes have functioned as the most important part in shaping the physical features of our Earth, on both social life and environment. Its unavoidable results always change life styles and city's structures with its positive and negative effects. To diminish those negative effects or avoid precise earthquake hazard, informing society is very crucial that the strong awareness decreases the risk as seen from past experiences all around the world. The research technique is functioned as questionnaire and applied in the area to achieve more realistic information and to maintain the essential arguments. All along the study, it is tried to think up the earthquake phenomena well known and straightforwardly recognized by a considerable quantity of people. Consequently, it is observed in this study that; firstly, telecommunication is most selected item both before and after earthquake in the point of its effectiveness. Secondly, telecommunication tools more preferable though, public announcement more trusting for society as power of affection on personal decision mechanisms. Thirdly, as a new tendency after earthquake, internet preference increased by means of information source about earthquake. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=ChetinAmine Cifci kn-aut-sei=Chetin kn-aut-mei=Amine Cifci aut-affil-num=1 ORCID= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Awareness of earthquake kn-keyword=Awareness of earthquake en-keyword=Importance of information kn-keyword=Importance of information en-keyword=Relative reliability of sources kn-keyword=Relative reliability of sources en-keyword=Internet and public announcement kn-keyword=Internet and public announcement END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=137 end-page=140 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Chemical Changes of Dredged Soil in Kojima Lake from the Viewpoint of Soil Reaction kn-title=土壌反応から見た児島湖浚渫土の化学的挙動 en-subtitle= kn-subtitle= en-abstract= kn-abstract=While dredged soil is increasing, the processing problem isn't solved. So it is expected to use effectively as the soil material. Although, to use dredged soil, the chemical characteristic must be grasped. It is because acidification cause material (pyrite) can be contained in dredged soil. It causes sulfulic ions when it touches air and has the possibility to become acidification. In this experiment, dredged soil in Kojima Lake was made clear that it contained in pyrite and acidified under the oxidation condition. Accordingly, when using dredged soil as ground resources, it is necessary to use as the soil material such as filling-up reclamation under the deoxidization condition. en-copyright= kn-copyright= en-aut-name=TakemuraKoichiro en-aut-sei=Takemura en-aut-mei=Koichiro kn-aut-name=武村光一郎 kn-aut-sei=武村 kn-aut-mei=光一郎 aut-affil-num=1 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=dredged soil kn-keyword=dredged soil en-keyword=pyrite kn-keyword=pyrite en-keyword=acidify kn-keyword=acidify en-keyword=soil moisture condition kn-keyword=soil moisture condition END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=157 end-page=160 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Acceleration of Formation of Shish under Flow by Addition of Irregular Shaped Particles kn-title=流動場結晶化における異形微粒子添加によるshish構造形成の促進 en-subtitle= kn-subtitle= en-abstract= kn-abstract=We have shown that the shish was formed from the oriented melt composed of the elongated chains caused by dust particles within the melt via bundle typed nucleation under flow with low shear rate (γ=5s(-1)). This implies that dust particles effectively cause the elongation of chains within the melt. In this work, we observed the crystallization of polypropylene added with irregular shaped particles under shear flow by means of polarizing optical microscope. We prepared various shaped particles such as confetti-like, spherical and rock-like. We found that the size and asymmetric shape of additive particles play an important role for the acceleration of formation of shish. en-copyright= kn-copyright= en-aut-name=YamazakiShinichi en-aut-sei=Yamazaki en-aut-mei=Shinichi kn-aut-name=山崎慎一 kn-aut-sei=山崎 kn-aut-mei=慎一 aut-affil-num=1 ORCID= en-aut-name=WakabayashiKanji en-aut-sei=Wakabayashi en-aut-mei=Kanji kn-aut-name=若林完爾 kn-aut-sei=若林 kn-aut-mei=完爾 aut-affil-num=2 ORCID= en-aut-name=MizumaKenta en-aut-sei=Mizuma en-aut-mei=Kenta kn-aut-name=水間健太 kn-aut-sei=水間 kn-aut-mei=健太 aut-affil-num=3 ORCID= en-aut-name=KimuraKunio en-aut-sei=Kimura en-aut-mei=Kunio kn-aut-name=木村邦生 kn-aut-sei=木村 kn-aut-mei=邦生 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=shish kn-keyword=shish en-keyword=crystallization kn-keyword=crystallization en-keyword=polypropylene kn-keyword=polypropylene en-keyword=shear flow kn-keyword=shear flow en-keyword=elongation kn-keyword=elongation en-keyword=injection molding kn-keyword=injection molding END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=141 end-page=151 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Agricultural trend of Inner Mongolia And Policy of Replacing Agriculture by Afforestation A Case Study of Zhuo Zi Xian, Wu Lan Cha Bu Meng kn-title=内モンゴルにおける農業動向と退耕環林環草政策 ―烏蘭察布盟卓資県を事例に― en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper, Background of Policy of Replacing Agriculture by Afforestation is clarified by means of the relation of the local Agricultural trend due to performance of the policy, united it the influence in the living and agriculture production to farmer in Zhuo Zi Xian. The investigation to the feasibility of the policy is based on the statistics data and the investigation of the agriculture in Inner Mongolia of China. In progress of the Policy of Replacing Agriculture by Afforestation, change of crop structure and development of animal husbadry were mainly seen in local agriculture. It made "Replacing Agriculture by Afforestation" possible. In order to perform this policy, to prevent retrogradation and develop local Agriculture continuously, technological development and spread in the Sustainable Agriculture, Training of Products processing company and Exploitation of the Products market of Agriculture, Forestry and Stockbreeding should be considered in the future study. en-copyright= kn-copyright= en-aut-name=DuFu-Lin en-aut-sei=Du en-aut-mei=Fu-Lin kn-aut-name=杜富林 kn-aut-sei=杜 kn-aut-mei=富林 aut-affil-num=1 ORCID= en-aut-name=ShinabeYoshihiro en-aut-sei=Shinabe en-aut-mei=Yoshihiro kn-aut-name=品部義博 kn-aut-sei=品部 kn-aut-mei=義博 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=replacing agriculture by afforestation policy kn-keyword=replacing agriculture by afforestation policy en-keyword=make one stop two Return three kn-keyword=make one stop two Return three en-keyword=Agricultural trend kn-keyword=Agricultural trend en-keyword=Inner Mongolia kn-keyword=Inner Mongolia en-keyword=China kn-keyword=China END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=161 end-page=165 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Material Recycling of Municipal Waste Slags by Using Phase Separation of Glass kn-title=ガラスの相分離を利用した都市ゴミ溶融スラグのマテリアルリサイクル en-subtitle= kn-subtitle= en-abstract= kn-abstract=A novel recycling process of municipal waste slags obtaining Fe-free colorless materials was developed by using a phase separation of borosilicate glass. B(2)O(3) was added to a simulated waste slag to promote the phase separation. The slag glasses were heat-treated above glass transition temperatures, from which phase separation was successfully induced. The phase-separated slag glasses were still colored in black due to Fe ions, and after soaking in acid, they were successfully bleached, obtaining colorless solids. According to compositional analyses, no Fe ions were confirmed in the remaining insolubles, indicating that Fe ions were preferentially incorporated into the borate-rich phases soluble in acid. The main constituent of the colorless solids was SiO(2) and the end products obtained in the present process were expected as an alternative of pure silica glass. en-copyright= kn-copyright= en-aut-name=ImaokaTakuya en-aut-sei=Imaoka en-aut-mei=Takuya kn-aut-name=今岡卓也 kn-aut-sei=今岡 kn-aut-mei=卓也 aut-affil-num=1 ORCID= en-aut-name=SakidaShinichi en-aut-sei=Sakida en-aut-mei=Shinichi kn-aut-name=崎田真一 kn-aut-sei=崎田 kn-aut-mei=真一 aut-affil-num=2 ORCID= en-aut-name=NanbaTokuro en-aut-sei=Nanba en-aut-mei=Tokuro kn-aut-name=難波徳郎 kn-aut-sei=難波 kn-aut-mei=徳郎 aut-affil-num=3 ORCID= en-aut-name=MiuraYoshinari en-aut-sei=Miura en-aut-mei=Yoshinari kn-aut-name=三浦嘉也 kn-aut-sei=三浦 kn-aut-mei=嘉也 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=slag kn-keyword=slag en-keyword=recycling kn-keyword=recycling en-keyword=colorless glass kn-keyword=colorless glass en-keyword=phase separation kn-keyword=phase separation END start-ver=1.4 cd-journal=joma no-vol=2 cd-vols= no-issue=1 article-no= start-page=33 end-page=50 dt-received= dt-revised= dt-accepted= dt-pub-year=1997 dt-pub=19970110 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Research on Prevention of Groundwater Flow Blockage by the Detour Permeation Method kn-title=迂回浸透工法による流況阻害の防止工法に関する研究 en-subtitle= kn-subtitle= en-abstract= kn-abstract=With the increase of underground construction in metropolitan areas in recent years, the problem of associated earth retaining works cutting off the natural flow of groundwater has increased in both scale and extent. The authors are proposing a new diaphragm wall method that does not inhibit the flow of groundwater. This paper describes the verification of the detour permeation achieved by the new diaphragm wall method and the experimental results related to the blockage of this groundwater flow. en-copyright= kn-copyright= en-aut-name=SatohTsuneo en-aut-sei=Satoh en-aut-mei=Tsuneo kn-aut-name=佐藤常雄 kn-aut-sei=佐藤 kn-aut-mei=常雄 aut-affil-num=1 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=(株)錢高組土木本部 affil-num=2 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=1 cd-vols= no-issue=1 article-no= start-page=1 end-page=13 dt-received= dt-revised= dt-accepted= dt-pub-year=1996 dt-pub=199603 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The Gap condition for S5 and GAP Programs en-subtitle= kn-subtitle= en-abstract= kn-abstract=In transformation groups on manifolds, it has been an interesting problem to ask whether for a given finite group G, there exists a real G-module V such that dim VP >2dimV>P for all subgroups P of prime power order and such that VH=0 for certain large subgroups H of G. This paper provides GAP programs to show that S5 does not admit such a real S5-module V. en-copyright= kn-copyright= en-aut-name=MorimotoMasaharu en-aut-sei=Morimoto en-aut-mei=Masaharu kn-aut-name=森本雅治 kn-aut-sei=森本 kn-aut-mei=雅治 aut-affil-num=1 ORCID= en-aut-name=YanagiharaMamoru en-aut-sei=Yanagihara en-aut-mei=Mamoru kn-aut-name=柳原守 kn-aut-sei=柳原 kn-aut-mei=守 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=Department of Industrial and Information Studies, Komatsu College en-keyword=GAP kn-keyword=GAP en-keyword=fixed point kn-keyword=fixed point en-keyword=gap condition kn-keyword=gap condition END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=表紙 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=目次 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page=1 end-page=6 dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Basic Reproductive Ratio for Epdiemic Models (Review) kn-title=感染症数理モデルの再生産数(レビュー) en-subtitle= kn-subtitle= en-abstract= kn-abstract=We review some fundamental results on the basic reproductive ratio of models in epidemiology following several documents. We present the general denition of the basic reproductive ratio and the threshold theorem of for the stability of the disease free equilibrium. All results for non-negative matrices and non singular M-matrices which we need in the denition of the basic reproductive ratio and the proof of the threshold theorem are also presented. All parts of the review are self-contained, and all parts of the proof are given explicitly. en-copyright= kn-copyright= en-aut-name=SumitaMasanori en-aut-sei=Sumita en-aut-mei=Masanori kn-aut-name=住田正憲 kn-aut-sei=住田 kn-aut-mei=正憲 aut-affil-num=1 ORCID= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学環境理工学部 affil-num=2 en-affil= kn-affil=岡山大学環境理工学部 en-keyword=Basic reproductive ratio kn-keyword=Basic reproductive ratio en-keyword=epidemic model kn-keyword=epidemic model en-keyword=Non negative matrix kn-keyword=Non negative matrix en-keyword=M-matrix kn-keyword=M-matrix END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page=7 end-page=21 dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A Survey Study of University Students’ Awareness on Social Contribution and Regional Cooperation kn-title=大学生の社会貢献・地域連携に対する意識 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Recently, competition among universities has a whole new face, and emphasis is given toward interdependence and interactive evolution between universities and regions. From this social perspective, universities should contribute to regional development by serving the regional society using results of intellectual work, and it is necessary for universities to accomplish social contribution and regional cooperation strategically. One of the most important parts in strategic planning is that students participate in activities for social contribution and regional cooperation. This paper presents a survey of the university students’ awareness on social contribution and regional cooperation using several statistical methods and attempts to find factors which affect activities for social contribution and regional cooperation using logistic regression analysis. en-copyright= kn-copyright= en-aut-name=NaMyungjin en-aut-sei=Na en-aut-mei=Myungjin kn-aut-name=羅明振 kn-aut-sei=羅 kn-aut-mei=明振 aut-affil-num=1 ORCID= en-aut-name=ArakiMasaru en-aut-sei=Araki en-aut-mei=Masaru kn-aut-name=荒木勝 kn-aut-sei=荒木 kn-aut-mei=勝 aut-affil-num=2 ORCID= en-aut-name=KuriharaKoji en-aut-sei=Kurihara en-aut-mei=Koji kn-aut-name=栗原考次 kn-aut-sei=栗原 kn-aut-mei=考次 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学大学院社会文化科学研究科 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学大学院環境学研究科 en-keyword=University students’ awareness kn-keyword=University students’ awareness en-keyword=social contribution and regional cooperation kn-keyword=social contribution and regional cooperation en-keyword=volunteer activities kn-keyword=volunteer activities en-keyword=exploratory factor analysis kn-keyword=exploratory factor analysis en-keyword=logistic regression analysis kn-keyword=logistic regression analysis END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page=23 end-page=43 dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=The Landscape and Sightseeing of Bittchu-Kokubunji Based on the Viewpoints of Tourists and Local Residents kn-title=観光客と地域住民からみた岡山県総社市 備中国分寺の景観と観光 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper, we examined the landscape and sightseeing at Bittchu-Kokubunji in Okayama prefecture carrying out the questionnaire survey to tourists and local residents. Both tourists and local residents estimate that the landscape ofBittchu-Kokubunji is wonderful, and it has several images such as historical, quiet, and old-fashioned, etc. AlthoughBittchu-Kokubunji is one of the famous tourist resorts in Okayama prefecture, there are quite few tourists compared with the degree of notability. Almost all tourists' age was 50 or more. As more active sightseeing activities, the number of times of holding events, such as an announcement of traditional performing arts, lighting of a five-storied pagoda, photograph or a sketching convention, needs to be increased. An attractive tourist resort should be created by the cooperation of local residents and administration. en-copyright= kn-copyright= en-aut-name=MizutaTomoya en-aut-sei=Mizuta en-aut-mei=Tomoya kn-aut-name=水田智也 kn-aut-sei=水田 kn-aut-mei=智也 aut-affil-num=1 ORCID= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=(株)三浦工業 affil-num=2 en-affil= kn-affil=岡山大学環境理工学部環境管理工学科景観管理学分野 en-keyword=Landscape kn-keyword=Landscape en-keyword=Sightseeing kn-keyword=Sightseeing en-keyword=Local residents kn-keyword=Local residents en-keyword=Bittchu-Kokubunji kn-keyword=Bittchu-Kokubunji END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2011年度環境デザイン工学科研究報告 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2011年度環境数理学科研究報告 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2011年度環境管理工学科研究報告 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2011年度環境物質工学科研究報告 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=17 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201203 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=奥付 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=1 cd-vols= no-issue=1 article-no= start-page=15 end-page=20 dt-received= dt-revised= dt-accepted= dt-pub-year=1996 dt-pub=199603 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Smash product extensions of separable algebras en-subtitle= kn-subtitle= en-abstract= kn-abstract=Let A be a bialgebra and let S be a right A-comodule algebra which has an A-comodule subalgebra T with common identity. We show that if S is a separable extension of T, then for a left A-module algebra K, K♯S is a separable extension of K♯T. Similar result holds for left A-module algebras and right A-comodule algebras. en-copyright= kn-copyright= en-aut-name=NakajimaAtsushi en-aut-sei=Nakajima en-aut-mei=Atsushi kn-aut-name=中島惇 kn-aut-sei=中島 kn-aut-mei=惇 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Separable extension kn-keyword=Separable extension en-keyword=smash product kn-keyword=smash product en-keyword=module algebra and comodule algebra kn-keyword=module algebra and comodule algebra END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=153 end-page=162 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Evaluation of Surface State of Ceramic Particles Suspended in Aqueous Solution by Potentiometric Titration Method kn-title=電位差適定によるセラミック粉体の表面電位の測定 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Surface states of ceramic particles such as SiO(2), Al(2)O(3), Si(3)N(4) and so on suspended in aqueous alkaline solutions were successfully and easily determined by a potentiometric titration method. Isoelctric point, iep and excess surface charge density were classified and evaluated for many ceramic particles from the view points of aggregation and dispersion of particles and solubility in aqueous solution. en-copyright= kn-copyright= en-aut-name=MiuraYoshinari en-aut-sei=Miura en-aut-mei=Yoshinari kn-aut-name=三浦嘉也 kn-aut-sei=三浦 kn-aut-mei=嘉也 aut-affil-num=1 ORCID= en-aut-name=NanbaTokuro en-aut-sei=Nanba en-aut-mei=Tokuro kn-aut-name=難波徳郎 kn-aut-sei=難波 kn-aut-mei=徳郎 aut-affil-num=2 ORCID= en-aut-name=ShinodaMasakatsu en-aut-sei=Shinoda en-aut-mei=Masakatsu kn-aut-name=篠田真克 kn-aut-sei=篠田 kn-aut-mei=真克 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=potentiometric titration method kn-keyword=potentiometric titration method en-keyword=isoelctric point kn-keyword=isoelctric point en-keyword=excess surface charge density kn-keyword=excess surface charge density en-keyword=ceramic particle kn-keyword=ceramic particle en-keyword=suspension kn-keyword=suspension en-keyword=aqueous solution kn-keyword=aqueous solution END start-ver=1.4 cd-journal=joma no-vol=2 cd-vols= no-issue=1 article-no= start-page=59 end-page=78 dt-received= dt-revised= dt-accepted= dt-pub-year=1997 dt-pub=19970110 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A Historical View on the Landscape in England -A Way toward Manlike Environment kn-title=イギリスの風土と景観構成―人間らしい環境創造への軌跡 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The landscape in England is analyzed with regard to its climate, natural features, industry and history. First, the landscape of towns and villages in Cortswald, which is now called the heart of England, is introduced and its special features are analyzed with respect to the layout of facilities and houses. Second, the remains of prehistoric and ancient times, which are important components of landscape in England, are analyzed concerning to the features of their existing space. Finally, the characters of landscape of some cities in middle ages are considered in connection with circumstances in those days. en-copyright= kn-copyright= en-aut-name=InouyeHiroshi en-aut-sei=Inouye en-aut-mei=Hiroshi kn-aut-name=井上博司 kn-aut-sei=井上 kn-aut-mei=博司 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=12 cd-vols= no-issue=1 article-no= start-page=167 end-page=171 dt-received= dt-revised= dt-accepted= dt-pub-year=2007 dt-pub=20070315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Efficient Chain Extension Reaction of Poly (butylene terephthalate) by using Crystallization kn-title=結晶化処理を用いたポリブチレンテレフタレートの効果的鎖延長反応の開発 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Plastics are quite important materials for not only industrial usages but also our daily life. Many plastics are difficult to reuse because they are susceptible to UV, hydrolysis and so on leading to the reduction of molecular weight. Among them, poly (butylenes terephthalate) (PBT) is a valuable materials prepared by polycondensation reaction, and PBT has the same limitation to reuse. Hence, efficient chain extension reaction for recovered PBT has been needed to improve the properties damaged by chain scission. In this study, new chain extension reaction had been examined by using crystallization as pre-treatment. Isothermal crystallization at 161℃ concentrated the chain end-groups on the surface of the crystals, and chain extension reaction at 210℃, which was lower than the melting temperature of PBT, enhanced the molecular weight significantly compared with the reaction over the melting temperature. It concluded that the pre-treatment of crystallization was favorable for the efficient chain extension reaction and this result provided the new technology for the effective reuse of the plastics. en-copyright= kn-copyright= en-aut-name=IharaSeiji en-aut-sei=Ihara en-aut-mei=Seiji kn-aut-name=井原誠司 kn-aut-sei=井原 kn-aut-mei=誠司 aut-affil-num=1 ORCID= en-aut-name=ShiromaHisashi en-aut-sei=Shiroma en-aut-mei=Hisashi kn-aut-name=城間弥 kn-aut-sei=城間 kn-aut-mei=弥 aut-affil-num=2 ORCID= en-aut-name=YamazakiShinichi en-aut-sei=Yamazaki en-aut-mei=Shinichi kn-aut-name=山崎慎一 kn-aut-sei=山崎 kn-aut-mei=慎一 aut-affil-num=3 ORCID= en-aut-name=KimuraKunio en-aut-sei=Kimura en-aut-mei=Kunio kn-aut-name=木村邦生 kn-aut-sei=木村 kn-aut-mei=邦生 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Polyester kn-keyword=Polyester en-keyword=material recycle kn-keyword=material recycle en-keyword=crystallization kn-keyword=crystallization en-keyword=chain extension reaction kn-keyword=chain extension reaction END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=163 end-page=166 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Asymmetric Diels-Alder Reaction of 5,5,5-Trichloro-3-penten-2-one and Its Related Compound en-subtitle= kn-subtitle= en-abstract= kn-abstract=Diels-Alder reactions of 5,5,5-trichloro-3-penten-2-one and ethyl 4,4,4-trichloro-2-butenoate with cyclopentadiene in the presence of a chiral Lewis acid gave exo-2-acetyl-endo-3-trichloromethyl-bicyclo[2.2.1]hept-5-ene and exo-2-ethoxycarbonyl-endo-3-trichloromethylbicyclo[2.2.1]hept-5-ene with 40% and 7% e.e., respectively. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=NakatsuShogo kn-aut-sei=Nakatsu kn-aut-mei=Shogo aut-affil-num=1 ORCID= en-aut-name=TsuboiSadao en-aut-sei=Tsuboi en-aut-mei=Sadao kn-aut-name=坪井貞夫 kn-aut-sei=坪井 kn-aut-mei=貞夫 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=asymmetric reaction kn-keyword=asymmetric reaction en-keyword=Diels-Alder reaction kn-keyword=Diels-Alder reaction en-keyword=asymmetric Diels-Alder reaction kn-keyword=asymmetric Diels-Alder reaction en-keyword=chiral Lewis acid kn-keyword=chiral Lewis acid en-keyword=trichloromethy group kn-keyword=trichloromethy group END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=1 end-page=7 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Linear and Differential Cryptanalysis of SHA-256 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The one-way hash function plays an important role in digital signatures and message authentication from the viewpoint of security. No effective attacking method has been discovered to the algorithm of hash function standard. In this study, we tried to attack SHA-256 in encryption mode using linear and differential cryptanalysis to solve a private key. We deduced that an estimate of the private key would require huge known and chosen plaintexts in both linear and differential cryptanalysis, and that it would be difficult to decipher SHA-256 in view of the required computation. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=WangXiao Dong kn-aut-sei=Wang kn-aut-mei=Xiao Dong aut-affil-num=1 ORCID= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=differential cryptanalysis kn-keyword=differential cryptanalysis en-keyword=encryption mode kn-keyword=encryption mode en-keyword=hash function kn-keyword=hash function en-keyword=linear cryptanalysis kn-keyword=linear cryptanalysis en-keyword=SHA-256 kn-keyword=SHA-256 END start-ver=1.4 cd-journal=joma no-vol=9 cd-vols= no-issue=1 article-no= start-page=167 end-page=178 dt-received= dt-revised= dt-accepted= dt-pub-year=2004 dt-pub=20040227 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A Case Study on How to Teach English at University Adopting TOEIC (2) -Evaluation after three years- kn-title=TOEICを取り入れた新しい英語授業の試み(2) ―3年後の評価― en-subtitle= kn-subtitle= en-abstract= kn-abstract=Three years ago, we wrote an essay about our new English-teaching program that adopted TOEIC. We gave out questionnaires to the students with questions ranging from what they thought of English in general to what they thought of our new program. In the essay, we discussed some of the results. Even though students' response was relatively positive in this initial survey, we wrote in our conclusion that we would like to renew and reform our classes. Receiving feedback from students periodically would help us improve their English ability. In order to see the change of students' attitude toward English and also toward our program, we conducted the same research last February. This time the results were not as favorable. For example, the number of students who thought their English ability was poor increased and those who showed a positive attitude toward our program decreased. We discussed and wrote what we learned from those results. We raised the question whether there was a gap between what we tried to teach to the students and what they wanted from us. Possible reasons were discussed on why we could not succeed in stimulating the students into studying English further. In April 2003 Okayama University started a new English curriculum, in which the classes for proficiency tests including TOEIC were opened. Similar classes have been set at many other universities. This survey will be a help to the further development of English education adopting TOEIC. en-copyright= kn-copyright= en-aut-name=MorokawaShigetake en-aut-sei=Morokawa en-aut-mei=Shigetake kn-aut-name=諸川重剛 kn-aut-sei=諸川 kn-aut-mei=重剛 aut-affil-num=1 ORCID= en-aut-name=OginoMasaru en-aut-sei=Ogino en-aut-mei=Masaru kn-aut-name=荻野勝 kn-aut-sei=荻野 kn-aut-mei=勝 aut-affil-num=2 ORCID= en-aut-name=KanzakiKen-ichi en-aut-sei=Kanzaki en-aut-mei=Ken-ichi kn-aut-name=神ｱ謙一 kn-aut-sei=神ｱ kn-aut-mei=謙一 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=TESOL kn-keyword=TESOL en-keyword=TOEIC kn-keyword=TOEIC en-keyword=questionnaires kn-keyword=questionnaires en-keyword=team teaching kn-keyword=team teaching END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=9 end-page=11 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A permanence theorem for a mathematical model for dynamics of pathogens and cells in vivo using elementary methods en-subtitle= kn-subtitle= en-abstract= kn-abstract=An elementary proof of permanence for a simple mathematical model proposed by Nowak and Bangham. In many papers, permanence property is proved by theorems established by the general theory of dynamical system. In this paper, we present an elementary proof only using differential inequalities and the theory of linear differential equations with constant coefficients. en-copyright= kn-copyright= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=1 ORCID= en-aut-name=SasakiToru en-aut-sei=Sasaki en-aut-mei=Toru kn-aut-name=佐々木徹 kn-aut-sei=佐々木 kn-aut-mei=徹 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Permanence kn-keyword=Permanence en-keyword=dynamical system kn-keyword=dynamical system en-keyword=pathogen kn-keyword=pathogen END start-ver=1.4 cd-journal=joma no-vol=11 cd-vols= no-issue=1 article-no= start-page=93 end-page=97 dt-received= dt-revised= dt-accepted= dt-pub-year=2006 dt-pub=20060315 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=New Attempt at Preparation of Fluorine-containing Poly(ether ketone)s in Supercritical Carbon Dioxide en-subtitle= kn-subtitle= en-abstract= kn-abstract=Fluorine-containing poly(ether ketone)s was synthesized by the nucleophilic aromatic substitution reaction of 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoropropane and 4,4'-bis(2,3,4,5,6-pentafluorobenzoyl) diphenyl ether in super-critical CO(2). Polymerizations were carried out at 80℃ for 6 hours under 5000 psi of CO(2) pressure, which was super-critical phase. Polymerization concentration was 0.5 g of polymer in 10 - 12 mL of CO(2). The polymer was not obtained in CO(2) due to the insolubility of both the potassium bisphenoxide and the polymer into CO(2). However, the polymer was formed by an addition of DMAc and NMP in CO(2), even though molecular weight was not so high. Very small amount of co-solvents which were immiscible with CO(2) was effective, and it was 1/20 - 1/25 amount of the solvent used in the conventional poly(ether ketone) synthesis. The polymerization mechanism was also discussed. en-copyright= kn-copyright= en-aut-name=KimuraKunio en-aut-sei=Kimura en-aut-mei=Kunio kn-aut-name=木村邦生 kn-aut-sei=木村 kn-aut-mei=邦生 aut-affil-num=1 ORCID= en-aut-name=YamazakiShinichi en-aut-sei=Yamazaki en-aut-mei=Shinichi kn-aut-name=山崎慎一 kn-aut-sei=山崎 kn-aut-mei=慎一 aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=CassidyPatrick E. kn-aut-sei=Cassidy kn-aut-mei=Patrick E. aut-affil-num=3 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=FitchJohn W kn-aut-sei=Fitch kn-aut-mei=John W aut-affil-num=4 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=VenumbakaSreenu R. kn-aut-sei=Venumbaka kn-aut-mei=Sreenu R. aut-affil-num=5 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=Institute for Environmental and Industrial Science, Texas State University at San Marcos affil-num=4 en-affil= kn-affil=Institute for Environmental and Industrial Science, Texas State University at San Marcos affil-num=5 en-affil= kn-affil=Institute for Environmental and Industrial Science, Texas State University at San Marcos en-keyword=super-critical carbon dioxide kn-keyword=super-critical carbon dioxide en-keyword=plastics kn-keyword=plastics en-keyword=high performance kn-keyword=high performance en-keyword=environmentally benign kn-keyword=environmentally benign END start-ver=1.4 cd-journal=joma no-vol=1 cd-vols= no-issue=1 article-no= start-page=21 end-page=26 dt-received= dt-revised= dt-accepted= dt-pub-year=1996 dt-pub=199603 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Random walks and isotropic Markov chains on homogeneous spaces en-subtitle= kn-subtitle= en-abstract= kn-abstract=Let G be a topological group acting on S transitively from the left with a compact stabilizer K. We show that every isotropic (i.e. spatially homogeneous w.r.t. the G-actions) Markov chain on S can be lifted to a right random walk on G and give a one-to-one correspondence between the isotropic Markov chains on S and the totality of sequences of probabilities (ν,μ1,μ2,･･･) where ν is a probability on G/K and each μn is that on K＼G/K. en-copyright= kn-copyright= en-aut-name=HoraAkihito en-aut-sei=Hora en-aut-mei=Akihito kn-aut-name=洞彰人 kn-aut-sei=洞 kn-aut-mei=彰人 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=random walk kn-keyword=random walk en-keyword=Markov chain kn-keyword=Markov chain END start-ver=1.4 cd-journal=joma no-vol=2 cd-vols= no-issue=1 article-no= start-page=79 end-page=88 dt-received= dt-revised= dt-accepted= dt-pub-year=1997 dt-pub=19970110 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Recognition of Surface of 3-dimensional Body and Its Input to Computer - Use of Delaunay Triangulation - en-subtitle= kn-subtitle= en-abstract= kn-abstract=CAD system is useful to define and input any artificial 3-dimensional configuration into computer, but the input of arbitrary natural 3-dimensional configuration is still serious for computer users. This paper includes a method to input arbitrary 3-dimensional configuration into computer. The method is based on 3-dimensioanl Delaunay triangulation which is a geometrical subdivision of arbitrary 3-dimensional convex domain into tetrahedra, and the auther shows a method to find triangles which cover whole surface of 3-dimensional body using the result of Delaunay triangulation. en-copyright= kn-copyright= en-aut-name=TaniguchiTakeo en-aut-sei=Taniguchi en-aut-mei=Takeo kn-aut-name=谷口健男 kn-aut-sei=谷口 kn-aut-mei=健男 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Delaunay Triangulation kn-keyword=Delaunay Triangulation en-keyword=3D Configuration kn-keyword=3D Configuration en-keyword=TIN kn-keyword=TIN en-keyword=CAD kn-keyword=CAD en-keyword=Computational Geometry kn-keyword=Computational Geometry END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=13 end-page=21 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=On Persistence in Dynamical Systems (Review) kn-title=力学系のパーシステンスについて（レビュー） en-subtitle= kn-subtitle= en-abstract= kn-abstract=Some important results on persistence are reviewed. These results concern the behavior of the orbits approaching the boundary. The orbits restrict the flow on the boundary, if one of them approaches more than one invariant set. A typical example is a model for cyclic competition, where the heteroclinic cycle can be the ω-limit set. Thus the persistence can be reduced to some conditions on the boundary flow. en-copyright= kn-copyright= en-aut-name=SasakiToru en-aut-sei=Sasaki en-aut-mei=Toru kn-aut-name=佐々木徹 kn-aut-sei=佐々木 kn-aut-mei=徹 aut-affil-num=1 ORCID= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=persistence kn-keyword=persistence en-keyword=ordinary differential equation kn-keyword=ordinary differential equation en-keyword=dynamical system kn-keyword=dynamical system END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=23 end-page=28 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Computational Analysis of Currents Generated in Kojima Lake Based on Updated Topographical Data en-subtitle= kn-subtitle= en-abstract= kn-abstract=Topographical data of Kojima Lake have been updated by applying data obtained after dredging. Together with tide level of Kojima Bay and water levels of Kurashiki River and Sasagase river, the information was incorporated in computational analysis of unsteady flows generated in the lake when the water was discharged from Kojima Lake to Kojima, Bay. A finite element method was applied to equations governing unsteady flows, and the transition of discharge was obtained. en-copyright= kn-copyright= en-aut-name=WatanabeMasaji en-aut-sei=Watanabe en-aut-mei=Masaji kn-aut-name=渡辺雅二 kn-aut-sei=渡辺 kn-aut-mei=雅二 aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=LiuYing kn-aut-sei=Liu kn-aut-mei=Ying aut-affil-num=2 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=WangMing Jun kn-aut-sei=Wang kn-aut-mei=Ming Jun aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=water environment kn-keyword=water environment en-keyword=finite element method kn-keyword=finite element method en-keyword=numerical simulation kn-keyword=numerical simulation END start-ver=1.4 cd-journal=joma no-vol=25 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=202003 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=奥付 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=表紙 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=目次 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page=1 end-page=17 dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The Management of Arable Land in Japan - An Analysis on Transition of Non-cultivated Arable Land - en-subtitle= kn-subtitle= en-abstract= kn-abstract=In Japan, the number of full-time farm households had continued to decrease since the latter half of 20th century. The number of part-time households has been also decreasing remarkably in the last twenty years. Cultivated acreage also aligned with these tendencies and it has decreased. As a result, the farmland which is not cultivated increased and it may also grow into a social problem. Therefore, the present condition and future view of Japanese agriculture was elaborately examined in the study by analyzing the transition of non-cultivated arable lands from a historical perspective. en-copyright= kn-copyright= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=DincsoyEnver Erdinc en-aut-sei=Dincsoy en-aut-mei=Enver Erdinc kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=Faculty of environmental science and technology, Okayama University affil-num=2 en-affil= kn-affil=Department of Banking, School of Applied Sciences, Trakya University en-keyword=Non-cultivated arable land kn-keyword=Non-cultivated arable land en-keyword=part-time farm households kn-keyword=part-time farm households en-keyword=non-farm households kn-keyword=non-farm households en-keyword=Japan kn-keyword=Japan END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page=18 end-page=32 dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2012年度環境数理学科 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=奥付 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page=33 end-page=44 dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2012年度環境デザイン工学科 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page=45 end-page=80 dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2012年度環境管理工学科 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page=81 end-page=118 dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2012年度環境物質工学科 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page=119 end-page=119 dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2012年度環境理工学部研究受賞等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=18 cd-vols= no-issue=1 article-no= start-page=120 end-page=120 dt-received= dt-revised= dt-accepted= dt-pub-year=2013 dt-pub=201303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2012年度環境理工学部博士論文 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=29 end-page=39 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Computation of the Grothendieck-Witt ring of nonsingular Hermitian forms with positioning map en-subtitle= kn-subtitle= en-abstract= kn-abstract=The generalized Grothendieck-Witt ring of nonsingular Hermitian forms with positioning map is the cartesian product of the ordinary Grothendieck-Witt ring of nonsingular Hermitian forms and a map ring. We study the generalized Grothendieck-Witt ring by computing the map ring. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=JuXian Meng kn-aut-sei=Ju kn-aut-mei=Xian Meng aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Grothendieck Witt ring kn-keyword=Grothendieck Witt ring en-keyword=orbit kn-keyword=orbit en-keyword=GAP kn-keyword=GAP END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=41 end-page=47 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Variable Selection Method using Apriori Algorithm on Contingency Table kn-title=分割表データにおけるApriori Alogrihtmを利用した変数選択手法 en-subtitle= kn-subtitle= en-abstract= kn-abstract=We proposed a new applied method for induction of variable selection on contingency table. This method is the application of Apriori algorithm on variable selection of contigency table with iteraction. We assume that variables are dichotomous variable. We confirm that can be select variable, when minimun support is low level by using AIC on variable selection criterion. en-copyright= kn-copyright= en-aut-name=OhnoManabu en-aut-sei=Ohno en-aut-mei=Manabu kn-aut-name=大野学 kn-aut-sei=大野 kn-aut-mei=学 aut-affil-num=1 ORCID= en-aut-name=TarumiTomoyuki en-aut-sei=Tarumi en-aut-mei=Tomoyuki kn-aut-name=垂水共之 kn-aut-sei=垂水 kn-aut-mei=共之 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Apriori Algorithm kn-keyword=Apriori Algorithm en-keyword=Varable Selection kn-keyword=Varable Selection en-keyword=Contigency Table kn-keyword=Contigency Table en-keyword=Interaction kn-keyword=Interaction END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=1 end-page=7 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Studies on the transmission model of HIV/AIDS among commercial sex workers in Thailand en-subtitle= kn-subtitle= en-abstract= kn-abstract=In 1990s, there were rapid increases in the number of HIV epidemics and AIDS cases in Thailand, Southeast Asia. In particular the risk of HIV infection was very high among female prostitutes who played a large part in the transmission of HIV infection. We formulated a mathematical model for the transmission of HIV in prostitutes. We carried out the model simulations to analyze the incipient spread of HIV infection and the effect of AIDS prevention methods in prostitutes. The simulation of our model indicates that even if the effect of AIDS prevention methods such as the recommendation of condom use for commercial sex workers would block the transmission at rate by 70%, the elimination of the HIV epidemic is still beyond attainment. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=TsunekuniYasuhiro kn-aut-sei=Tsunekuni kn-aut-mei=Yasuhiro aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=OhgaYukio kn-aut-sei=Ohga kn-aut-mei=Yukio aut-affil-num=2 ORCID= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=AIDS kn-keyword=AIDS en-keyword=HIV kn-keyword=HIV en-keyword=prostitution kn-keyword=prostitution en-keyword=Thailand kn-keyword=Thailand en-keyword=transmission model kn-keyword=transmission model END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=49 end-page=56 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Considering variable selection criteria in correspondence analysis kn-title=コレスポンデンス分析における変数選択規準の検討 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Ordinary goodness of fit criteria in correspondence analysis are considered as variable selection criteria in case correspondence analysis which is one of multivariate methods without external variables can be applied. The goodness of fit criteria focused here are proportion of cumulative eigenvalues, proportion of cumulative squared-eigenvalues and proportion of cumulative off-diagonal fitness. Each criterion is applied to a couple of real data sets and evaluated with interpretation of the selection process and result (selected subset of variables). Four selection procedures such as backward elimination and forward-backward selection are also performed to compare with each other as well as with all possible selection procedure. These results illustrate that the criteria can be used as selection criteria to select a subset of variables in correspondence analysis and to assess categorical items (questions) in a survey (questionnaire). en-copyright= kn-copyright= en-aut-name=MoriYuichi en-aut-sei=Mori en-aut-mei=Yuichi kn-aut-name=森裕一 kn-aut-sei=森 kn-aut-mei=裕一 aut-affil-num=1 ORCID= en-aut-name=DuXiao Dong en-aut-sei=Du en-aut-mei=Xiao Dong kn-aut-name=杜暁東 kn-aut-sei=杜 kn-aut-mei=暁東 aut-affil-num=2 ORCID= en-aut-name=IizukaMasaya en-aut-sei=Iizuka en-aut-mei=Masaya kn-aut-name=飯塚誠也 kn-aut-sei=飯塚 kn-aut-mei=誠也 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=9 end-page=17 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Development of a statistical survey analysis system using Internet kn-title=インターネットを利用した統計調査分析システムの構築 en-subtitle= kn-subtitle= en-abstract= kn-abstract=We constructed the online analysis system of the Okayama Activity Area Survey in place since 1979. This is one way to solve the problem in case of releasing the result of a statistical survey. In this paper, we treat the detail of the structure of the system. en-copyright= kn-copyright= en-aut-name=FujinoTomokazu en-aut-sei=Fujino en-aut-mei=Tomokazu kn-aut-name=藤野友和 kn-aut-sei=藤野 kn-aut-mei=友和 aut-affil-num=1 ORCID= en-aut-name=TarumiTomoyuki en-aut-sei=Tarumi en-aut-mei=Tomoyuki kn-aut-name=垂水共之 kn-aut-sei=垂水 kn-aut-mei=共之 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=microdata kn-keyword=microdata en-keyword=statistical disclosure control kn-keyword=statistical disclosure control en-keyword=web based system kn-keyword=web based system en-keyword=online database kn-keyword=online database END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=19 end-page=22 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A note on the effect of quadratic term on final pattern in Turing model kn-title=チューリングモデルにおける2次の反応項のパターンに与える影響 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The effect of the quadratic term on the final pattern in Turing model is disscussed numerically. Turing models are non linear reaction diffusion equations. Linear analysis for wave length is very useful to find evolving waves. But when a quadratic term appear in the equation, an initial wave can disappears and changes drastically to a spot which is independent of linear analysis. en-copyright= kn-copyright= en-aut-name=YamauchiKen-ichi en-aut-sei=Yamauchi en-aut-mei=Ken-ichi kn-aut-name=山内憲一 kn-aut-sei=山内 kn-aut-mei=憲一 aut-affil-num=1 ORCID= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Turing instability kn-keyword=Turing instability en-keyword=Reaction Diffusion equation kn-keyword=Reaction Diffusion equation en-keyword=Quadratic term kn-keyword=Quadratic term END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=57 end-page=65 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Remote Sensing of 1998 and 2000 Floods in Greater Dhaka, Bangladesh: Experiences from Catastrophic and Normal events en-subtitle= kn-subtitle= en-abstract= kn-abstract=This paper is an attempt to develop a series of maps that precisely depict flood prone areas in Greater Dhaka, Bangladesh using remote sensing techniques. Multi-temporal RADARSAT SAR data were acquired and employed to delineate open water flood boundary during the floods of 1998 and 2000. Using a threshold algorithm, SAR data is segregated into water and non-water areas. The empirical threshold value was obtained by using visual interpretation technique, local knowledge of the study site and by deriving corresponding pixel values to land/water from each image. The result demonstrated that 53 percent of the study area was heavily inundated in 1998 flood which is the largest submerged area during a catastrophic scenario. In contrast, 35.32 percent area was flooded during the year 2000 which represents the area under water for a normal event. Using the reference data acquired from field visit, derived flood maps were further validated. Moderate accuracy is obtained for all flood maps, however, July 1998 image attained the highest overall accuracy (86%) in the dataset. The derived flood maps are expected to be useful to mitigate losses of lives and property from river water flooding in Greater Dhaka. Furthermore, this information would be worthwhile to develop an efficient flood disaster management system. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=DewanAshraf M. kn-aut-sei=Dewan kn-aut-mei=Ashraf M. aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AlamMd. Mahabubul kn-aut-sei=Alam kn-aut-mei=Md. Mahabubul aut-affil-num=2 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=Department of Geography & Environment, University of Dhaka affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=SAR kn-keyword=SAR en-keyword=open water flood kn-keyword=open water flood en-keyword=1998 and 2000 floods kn-keyword=1998 and 2000 floods en-keyword=Greater Dhaka kn-keyword=Greater Dhaka en-keyword=RADARSAT kn-keyword=RADARSAT END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=23 end-page=26 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=An Experimental Study of Unsteady Flows Generated in Kojima Lake en-subtitle= kn-subtitle= en-abstract= kn-abstract=The global positioning system (GPS) is utilized for analysis of flows in the water environment. A float equipped with a GPS unit is designed to drift on the surface of the water. Its driving force is the fluid resistance exerted on a pair of rectangular plates. While it travels over the surface, the GPS unit evaluates its position every second, and spatiotemporal data that specify its motion are transmitted to be recorded. Results of experiments conducted to study unsteady flows generated in Kojima Lake are introduced. en-copyright= kn-copyright= en-aut-name=WatanabeMasaji en-aut-sei=Watanabe en-aut-mei=Masaji kn-aut-name=渡辺雅二 kn-aut-sei=渡辺 kn-aut-mei=雅二 aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=NumaguchiSatoshi kn-aut-sei=Numaguchi kn-aut-mei=Satoshi aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=water environment kn-keyword=water environment en-keyword=global positioning system kn-keyword=global positioning system END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=27 end-page=38 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The Impact of Core-cities Growth on the Regional Economic Development in China en-subtitle= kn-subtitle= en-abstract= kn-abstract=China has achieved a remarkable economic growth in the past two decades. However, the rapid economic development has led to regional disparities between the advanced coastal regions and the other regions. Regional development planning in China has sought to achieve the redress of regional disparities as well as a high economic growth. This paper aims to examine the role of core cities in the development of Chinese regional economy and their impact on regional differentials. Following a brief review of regional development planning in China, the paper examines the role of core cities on the regional development and the trends in regional disparities using data for seven coastal provinces (Guangdong, Fujian, Zhejiang, Jiangsu, Shandong, Hebei and Liaoning) and three municipalities (Beijing, Tianjin and Shanghai) in the period 1989-1997. It shows that while the coastal regions achieved a high economic growth, the extent of regional disparities and the contributions of core cities to the reduction of economic differentials varied among provinces. The paper concludes by proposing future issues on regional development planning in China. en-copyright= kn-copyright= en-aut-name=ZouDagang en-aut-sei=Zou en-aut-mei=Dagang kn-aut-name=ZouDagang kn-aut-sei=Zou kn-aut-mei=Dagang aut-affil-num=1 ORCID= en-aut-name=AbeHirofumi en-aut-sei=Abe en-aut-mei=Hirofumi kn-aut-name=阿部宏史 kn-aut-sei=阿部 kn-aut-mei=宏史 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=regional disparities kn-keyword=regional disparities en-keyword=core cities kn-keyword=core cities en-keyword=per capita GDP kn-keyword=per capita GDP en-keyword=lavor productivity kn-keyword=lavor productivity en-keyword=per capita employment kn-keyword=per capita employment END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=目次 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=67 end-page=74 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Evaluating Flood Damage using GIS and RADARSAT data-A case of the 1998 Catastrophe in Greater Dhaka, Bangladesh en-subtitle= kn-subtitle= en-abstract= kn-abstract=The objective of this paper is to delineate flood prone areas and estimate damage in Greater Dhaka during the 1998 catastrophic flood using an integrated approach of GIS and remote sensing. Time series RADARSAT SAR data is acquired and used to demarcate flood boundaries for the 1998 flood event. This was accomplished by thresholding linear SAR imageries. Flood estimation demonstrated that flood areas steadily increased from early July 1998 and peaked on 25 August 1998 inundating 53% lands due to heavy monsoonal downpour and discharge from upstream points. Different thematic layers were combined with a derived flood map in order to assess flood damage for the same event. Flood damage analysis revealed that substantial damage has occurred in Greater Dhaka during the 1998 flood. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=DewanAshraf M. kn-aut-sei=Dewan kn-aut-mei=Ashraf M. aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AlamMd. Mahabubul kn-aut-sei=Alam kn-aut-mei=Md. Mahabubul aut-affil-num=2 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=Department of Geography & Environment, University of Dhaka affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Synthetic Aperture Radar (SAR) kn-keyword=Synthetic Aperture Radar (SAR) en-keyword=flood delineation kn-keyword=flood delineation en-keyword=1998 flood kn-keyword=1998 flood en-keyword=flood damage kn-keyword=flood damage en-keyword=Greater Dhaka kn-keyword=Greater Dhaka END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=39 end-page=52 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The Hydrogeological Setting of Ghana and the Potential for Underground Dams en-subtitle= kn-subtitle= en-abstract= kn-abstract=Increasing human population, changing lifestyles and environmental considerations have resulted in increased utilization of groundwater resources worldwide. Thus, in turn, has led to the decline of groundwater levels in some countries and Ghana is no exception to this problem. To augment the availability of groundwater resources for various uses, numerous techniques have been developed in many part of the world, one of which is the construction of underground dams. The successful construction and utilization of underground dams, however, depends very much on the physical and hydrogeological conditions at the dam sites. Ghana is underlain by Precambrian crystalline igneous and metamorphic rocks ; and Paleozoic consolidated sedimentary formations. There are further subdivided and described locally as the Birimian, Dahomeyan, Buem, Togo Series, Tarkwaian, Granites, Voltain, Coastal Block Fault, Coastal Plain and Quaternary Alluvium. The review of these and the pre-requisite conditions necessary for the construction of underground dams indicate that underground dams could be constructed and utilized in some parts of Ghana, especially where the overburden is shallow, in the Dahomeyan granites and in the recent formations consisting of alluvial and coastal sands and gravels. This paper is part of a continuing research programme being carried out by the authors. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Kankam-YeboahKwabena kn-aut-sei=Kankam-Yeboah kn-aut-mei=Kwabena aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Dapaah-SiakwanStephen kn-aut-sei=Dapaah-Siakwan kn-aut-mei=Stephen aut-affil-num=2 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=3 ORCID= en-aut-name=KomatsuMitsuru en-aut-sei=Komatsu en-aut-mei=Mitsuru kn-aut-name=小松満 kn-aut-sei=小松 kn-aut-mei=満 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=Water Research Institute (CSIR) affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=hydrogeology kn-keyword=hydrogeology en-keyword=geology kn-keyword=geology en-keyword=underground dam kn-keyword=underground dam en-keyword=sand-storage dam kn-keyword=sand-storage dam en-keyword=sub-surface dam kn-keyword=sub-surface dam en-keyword=water supply kn-keyword=water supply END start-ver=1.4 cd-journal=joma no-vol=1 cd-vols= no-issue=1 article-no= start-page=27 end-page=41 dt-received= dt-revised= dt-accepted= dt-pub-year=1996 dt-pub=199603 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The determination of small dimensions of the Hilbert Modular Type Cusp forms of Weight Two over Real Quadratic Fields en-subtitle= kn-subtitle= en-abstract= kn-abstract=The author has proved the dimension formula of the space of the Hilbert modular type cusp forms of weight two. We present further refinements of the dimension formula for a real quadratic number field Q(√D), and calculate it effectively. We tabulate the dimensions for square-free natural numbers D below 104 with the computer assistance. We also determine all the spaces of their dimension below 10. en-copyright= kn-copyright= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=75 end-page=81 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Rapid Impact Assessment Matrix (RIAM) - An Analytical Tool in the Prioritization of Water Resources Management Problems in Ghana en-subtitle= kn-subtitle= en-abstract= kn-abstract=The rapid impact assessment (RIAM), which was developed in Denmark, is a new tool for the execution of environmental impact assessments. RIAM is quite flexible, transparent and leaves a permanent record, which can be independently checked, validated or updated. RIAM has successfully been used to prioritize water resources management problems in Ghana in the order of which problems call for the most urgent attention. The priority list was easily validated and accepted to be the true reflection of the situation at a national workshop in which experts and representatives from water agencies, donor agencies, university faculties and departments, research institutes, private institutions and organizations including Non Governmental Organizations (NGOs) participated. The study has shown that RIAM, which can also be used in a developing country like Ghana, is a very useful tool in such prioritization process as has been applied in this exercise. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Kankam-YeboahKwabena kn-aut-sei=Kankam-Yeboah kn-aut-mei=Kwabena aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AsareEnoch B. kn-aut-sei=Asare kn-aut-mei=Enoch B. aut-affil-num=2 ORCID= en-aut-name=Gyau-BoakyePhilip en-aut-sei=Gyau-Boakye en-aut-mei=Philip kn-aut-name=Gyau-BoakyePhilip kn-aut-sei=Gyau-Boakye kn-aut-mei=Philip aut-affil-num=3 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=CSIR-Water Research Institute affil-num=3 en-affil= kn-affil=CSIR-Water Research Institute affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Water resources management problems kn-keyword=Water resources management problems en-keyword=prioritization kn-keyword=prioritization en-keyword=impact indicators kn-keyword=impact indicators en-keyword=RIAM kn-keyword=RIAM en-keyword=river basins kn-keyword=river basins en-keyword=Ghana kn-keyword=Ghana END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=83 end-page=88 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Sustainable Groundwater Exploitation under Natural Conditions in Southwest Ghana en-subtitle= kn-subtitle= en-abstract= kn-abstract=Groundwater has been recognised as the most cost-effective option of safe water supply to rural communities in Ghana. The demand for potable water has led to the drilling of a large number of boreholes in many parts of the country. To establish the threshold of groundwater development from storage in a major river catchment (Pra River) in South-West Ghana, studies on recharge to the weathered aquifer and statistical evaluations of specific capacity and potential yield have been carried out. The SACSMA conceptual hydrological modelling system was used for the recharge estimate. With recharge rate of 50 mm/yr, the natural groundwater resources in the basin was estimated to support a maximum withdrawal of 12 l/s for a 10 hour per day pumping. The groundwater resources potential of 1.6 l/sｋu could be considered the threshold of groundwater exploitation in similar river basins in South-West Ghana. A study into the relation between permeability and recharge under different conditions and scenarios is required to define their limiting role in groundwater resources development. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Kankam-YeboahKwabena kn-aut-sei=Kankam-Yeboah kn-aut-mei=Kwabena aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=DarkoPhilip K. kn-aut-sei=Darko kn-aut-mei=Philip K. aut-affil-num=2 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=CSIR-Water Research Institute affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Groundwater storage kn-keyword=Groundwater storage en-keyword=recharge kn-keyword=recharge en-keyword=aquifer kn-keyword=aquifer en-keyword=specific capacity kn-keyword=specific capacity en-keyword=base flow kn-keyword=base flow en-keyword=hydrologic budget kn-keyword=hydrologic budget END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=53 end-page=62 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Floods in Bangladesh: A Comparative Hydrological Investigation on Two Catastrophic Events en-subtitle= kn-subtitle= en-abstract= kn-abstract=Flood becomes regular feature in riverrine Bangladesh. Every year, around 21 percent of land is flooded during monsoon season, however, in severe situation this figure shot up to more than 60 percent of total land. This paper is an attempt to analyze hydrological characteristics of two catastrophic events (1988 and 1998 flood) in the light of flood history in Bangladesh. The analysis demonstrates that the 1998 flood was more severe than the 1988 one. Moreover, the 1998 flood was also prolonged than the 1988 flood due to heavy rainfall inside and outside of the country. Finally, flood management issues in Bangladesh have been analyzed and found that structural solution to mitigate flood is not the only solution. Based on the analysis some possible mitigation options are put foward. en-copyright= kn-copyright= en-aut-name=A.M.Dewan en-aut-sei=A.M. en-aut-mei=Dewan kn-aut-name=A.M.Dewan kn-aut-sei=A.M. kn-aut-mei=Dewan aut-affil-num=1 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=2 ORCID= en-aut-name=KomatsuMitsuru en-aut-sei=Komatsu en-aut-mei=Mitsuru kn-aut-name=小松満 kn-aut-sei=小松 kn-aut-mei=満 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Flood kn-keyword=Flood en-keyword=Flood Management kn-keyword=Flood Management en-keyword=Danger level kn-keyword=Danger level en-keyword=Peak floods kn-keyword=Peak floods en-keyword=Deforestation kn-keyword=Deforestation END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=63 end-page=79 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=The Nature of Tsuyama Region based on Changing Chief Industries kn-title=主要産業の動向からみた津山地域の性格 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper, the nature of Tsuyama region was explained in terms of several changing features such as agricultural, industrial, commercial, and sight-seeing activities. Also, short history of mining sulfide ore at Yanahara Town was described and the population change of surrounding area was analyzed. Although the vitality of agriculture in general has gradually fallen mainly due to the decrease of number of farm household, of the rate of full-time farm household, of the area of farmland, and of the harvested area of rice, tobacco, and Japanese radish, the production of black syobean and the rate of vegetables, etc. have increased. After the highway of Chugoku line was opened to traffic, the number of industrial parks and establishments suddenly increased in and around Tsuyama City and they employed many workers. Within the industries of Tsuyama City, manufactures of genaral and electrical machineries, equipment and supplies developed, but the ones of textile mill products, apparel and other finished products made from fabrics and similar materials declined. In sight-seeing, tourists of Yunogou spa have increased in a satisfactory. Population of the municipalities except Tsuyama City have decreased since 1970 and a number of large-sized stores have come to be located in the suburbs of Tsuyama City. en-copyright= kn-copyright= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Tsuyama region kn-keyword=Tsuyama region en-keyword=Tsuyama City kn-keyword=Tsuyama City en-keyword=Agriculture kn-keyword=Agriculture en-keyword=Industrial Park kn-keyword=Industrial Park en-keyword=Sight-seeing kn-keyword=Sight-seeing en-keyword=City kn-keyword=City END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=表紙 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page=1 end-page=21 dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The Long Term Change of Agricultural Production in Okayama Prefecture in terms of Rice, Wheat and Barley en-subtitle= kn-subtitle= en-abstract= kn-abstract= The current ratio of dependence on food in Japan has remarkably grown and the significance of food self-sufficiency by concurrent agriculture may decline, while importantly conserving the natural environment, appropriate management of farmland. Okayama prefecture has an agricultural trend over more than 100 years of rice, barley and wheat cropping area with the rise and fall of its agricultural land use from the prior to the Industrial Revolution in Japan. Although rice reduction policy in Japan is scheduled to end in 2017, Japan is strongly subject to rice compared to other grains. In order to understand the role and scope of the agricultural sector in Okayama pref., it is necessary to review the changes in the related agricultural products for the long term. In Okayama pref., the cultivation and processing of some industrial crops including sericulture sector were thriving in the past, but, commercial agriculture was not well developed and the meaning of the production of cereals was greater than current production. Considering the part of agricultural characteristics by examining the cultivation of crops over the long term, planting area survey by variety confirmed that the greatest feature of rice cultivation in Okayama pref. is the diversity of varieties. In addition to various rice varieties, agriculture in Okayama pref. has a high sustainability, resistance and flexibility against changes on climate, policies and land use. en-copyright= kn-copyright= en-aut-name=Meltem Okur Din?soy en-aut-sei=Meltem Okur Din?soy en-aut-mei= kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=Enver Erdin? Din?soy en-aut-sei=Enver Erdin? Din?soy en-aut-mei= kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=FumikazuIchiminami en-aut-sei=Fumikazu en-aut-mei=Ichiminami kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil=Faculty of Economics and Administrative Sciences, Trakya University kn-affil= affil-num=2 en-affil=School of Applied Sciences, Trakya University kn-affil= affil-num=3 en-affil=Faculty of Environmental Science and Technology, Okayama University kn-affil= en-keyword=cultivated area kn-keyword=cultivated area en-keyword=rice kn-keyword=rice en-keyword=wheat kn-keyword=wheat en-keyword=barley kn-keyword=barley en-keyword=Okayama prefecture kn-keyword=Okayama prefecture END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page=23 end-page=48 dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A Transitional Analysis on the Production of Cereals, Beans and Potatoes in Okayama Prefecture en-subtitle= kn-subtitle= en-abstract= kn-abstract= The contribution of cereals to economies is undoubtedly very important and has many dimensions in terms of use of cultivated areas, agricultural production, nutrition, domestic and foreign trade and national income. In this study, we examined the characteristics of agricultural production in Okayama prefecture from the viewpoint of grain, beans and potatoes excluding rice, wheat and barley in the long term. These are undoubtedly supposed to have a certain role in complementing the function as the staple food of rice and wheat, etc.Also, according to our literature investigations, researchers have not focused on this context for Okayama Prefecture by not spending enough attention in the past. Therefore, we focus on these subjects in this paper by examining a historical significance. It is observed that some planting area and yield of crops have drastically reduced in Okayama prefecture. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=Enver Erdin Din?soy kn-aut-sei=Enver Erdin Din?soy kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=FumikazuIchiminami en-aut-sei=Fumikazu en-aut-mei=Ichiminami kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=Meltem Okur Din?soy en-aut-sei=Meltem Okur Din?soy en-aut-mei= kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil=School of Applied Sciences, Trakya University kn-affil= affil-num=2 en-affil=Faculty of Environmental Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Faculty of Economics and Administrative Sciences, Trakya University kn-affil= en-keyword=cultivated area kn-keyword=cultivated area en-keyword=cereals kn-keyword=cereals en-keyword=buckwheat kn-keyword=buckwheat en-keyword=beans kn-keyword=beans en-keyword=potatoes kn-keyword=potatoes en-keyword=Okayama prefecture kn-keyword=Okayama prefecture END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page=49 end-page=79 dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=An Analysis of Land-Use in Okayama Prefecture in terms of Industrial Crops en-subtitle= kn-subtitle= en-abstract= kn-abstract= There are many limitations and difficulties in terms of expanding agricultural lands. Also, some other factors affect the agricultural lands that result in decreases such as climate change, erosion and misuse of the lands. It is clear that these developments in agricultural land use threaten the future of human welfare, social conditions, economic growth and food supply. In this study, we examined the land use and its significance that represent past agriculture and regional characteristics in the Chugoku region including Okayama prefecture and the Seto Inland Sea. Specifically, among the products called as industrial crops, such as cotton, pyrethrum, rush, tobacco, rapeseed, mulberry and tea, were adopted as the indicators. Currently, these landscapes can hardly be seen, only leaves of tobacco and tea can still be seen in mountainous areas. Even in agricultural land usewhich has almost disappeared now, it may have indirect influence as in the case of reclaimed land and rush products. Therefore, we reaffirmed in this study the reasons for their existence and their significance. en-copyright= kn-copyright= en-aut-name=FumikazuIchiminami en-aut-sei=Fumikazu en-aut-mei=Ichiminami kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=Meltem Okur Din?soy en-aut-sei=Meltem Okur Din?soy en-aut-mei= kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=Enver Erdin Din?soy en-aut-sei=Enver Erdin Din?soy en-aut-mei= kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= affil-num=1 en-affil=Faculty of Environmental Science and Technology, Okayama University kn-affil= affil-num=2 en-affil=Faculty of Economics and Administrative Sciences, Trakya University kn-affil= affil-num=3 en-affil=School of Applied Sciences, Trakya University kn-affil= en-keyword=industrial crop kn-keyword=industrial crop en-keyword=cultivated area kn-keyword=cultivated area en-keyword=rural geography kn-keyword=rural geography en-keyword=agriculture kn-keyword=agriculture en-keyword=Okayama prefecture kn-keyword=Okayama prefecture END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page=81 end-page=87 dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2017年 環境数理学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page=89 end-page=102 dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2017年 環境デザイン工学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract=あれば en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page=103 end-page=115 dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2017年 環境管理工学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page=117 end-page=131 dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2017年 環境物質工学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=89 end-page=103 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Illegally Parked Bicycles around the Okayama Station - Withdrawal, Storage and Return of Them - kn-title=岡山駅周辺の放置自転車の現状とその対策 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper, first it is investigated illegally parked bicycles around the Okayama station, withdrawal, storage and return of them. Second, there will be a questionnaire to understand citizen's consciousness and clarify how they have been grasped present condition. Furthermore, it is aimed that considering how to carry out an efficient activity for reducing number of illegally parked bicycles. The results are concluded as follows. It is much more required to strengthening in the criminal prohibition zone by applying withdrawal activities and regulations. Presumably, first it is required to change storage area in order to increase the rate of returned bicycles. Besides, it will be great improvement in rate of return, if definite proportion of area is confidentially secured on storage area near the Okayama station. Moreover, it was remarkable that a citizen was not known in detail about an illegally parked bicycle. On the other side, recognition of most of the suburbanite of Okayama-shi tends to be impervious and replied to affirm illegally parked bicycle. However, the residents who live an area near to station understood the present condition well, and they disapprove to the illegally parked bicycle. Finally, in order to improve present condition, to prevent completely and to decrease the number of illegally parked bicycles publicity work is required. en-copyright= kn-copyright= en-aut-name=ToyokiYosuke en-aut-sei=Toyoki en-aut-mei=Yosuke kn-aut-name=豊城洋輔 kn-aut-sei=豊城 kn-aut-mei=洋輔 aut-affil-num=1 ORCID= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=積水ハウス株式会社 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Illegally Parked Bicycle kn-keyword=Illegally Parked Bicycle en-keyword=Okayama Station kn-keyword=Okayama Station en-keyword=Storage Area kn-keyword=Storage Area en-keyword=Publicity Work kn-keyword=Publicity Work END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page=133 end-page=133 dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2017年 環境理工学部 研究受賞等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page=135 end-page=136 dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2017年 環境理工学部 博士論文 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=23 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2018 dt-pub=201803 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=奥付 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=105 end-page=109 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=1,3-Dibromo-5,5-dimethylhydantoin, a useful reagent for ortho-monobromination of phenols and polyphenols en-subtitle= kn-subtitle= en-abstract= kn-abstract=Ortho-monobromination of phenols and polyphenols by 1,3-dibromo-5,5-dimethylhydantoin (DBDMH) is described. A simple addition of commercially available DBDMH to phenols and polyphenols in chloroform at room temperature resulted in a good to excellent yield of corresponding ortho-monobromo derivatives. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AlamAshraful kn-aut-sei=Alam kn-aut-mei=Ashraful aut-affil-num=1 ORCID= en-aut-name=TakaguchiYutaka en-aut-sei=Takaguchi en-aut-mei=Yutaka kn-aut-name=高口豊 kn-aut-sei=高口 kn-aut-mei=豊 aut-affil-num=2 ORCID= en-aut-name=TsuboiSadao en-aut-sei=Tsuboi en-aut-mei=Sadao kn-aut-name=坪井貞夫 kn-aut-sei=坪井 kn-aut-mei=貞夫 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=ortho-monobromination kn-keyword=ortho-monobromination en-keyword=phenol kn-keyword=phenol en-keyword=polyphenol kn-keyword=polyphenol en-keyword=DBDMH kn-keyword=DBDMH END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=81 end-page=85 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Survey on Spatial Variability of Surface Soil Moisture and Soil Physical Properties in a Sloping Grassland Field kn-title=傾斜草地における表層土壌水分と土壌物理性の空間分布調査 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Spatial variability of surface soil moisture, bulk density, satureted hydraulic conductivity, and penetration resistance (cone index) in a sloping grassland field were surveyed. The typical results were as follows: (1) The surface soil moisture and the bulk density were normally distributed at a significant level of 0.05. (2) The surface soil moistures were higher at low area than in high and slope area. The coefficients of variation were larger at slope area. (3) The coefficients of variation for bulk density were larger at slope area than in low area. (4) The distribution of saturated hydraulic conductivity can be considered to be log-normally distributed. (5) The cone index showed the normal distribution. en-copyright= kn-copyright= en-aut-name=MoroizumiToshitsugu en-aut-sei=Moroizumi en-aut-mei=Toshitsugu kn-aut-name=諸泉利嗣 kn-aut-sei=諸泉 kn-aut-mei=利嗣 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Spatial variability kn-keyword=Spatial variability en-keyword=Surface soil moisture kn-keyword=Surface soil moisture en-keyword=Bulk density kn-keyword=Bulk density en-keyword=Saturated hydraulic conductivity kn-keyword=Saturated hydraulic conductivity en-keyword=Cone index kn-keyword=Cone index END start-ver=1.4 cd-journal=joma no-vol=10 cd-vols= no-issue=1 article-no= start-page=111 end-page=117 dt-received= dt-revised= dt-accepted= dt-pub-year=2005 dt-pub=20050228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis of ellagic acid and its 4,4'-di-Ο-alky derivatives from gallic acid en-subtitle= kn-subtitle= en-abstract= kn-abstract=Synthesis of ellagic acid and its 4,4'-di-Ο-alkyl derivatives from gallic acid is described. Ellagic acid is prepared by oxidative coupling of gallic acid with ο-chloranil. Functionalized methyl bormogallate underwent Ullmann coupling to give the biphenyl that upon lactonization resulted in the ellagic acid and its alkoxy derivatives. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AlamAshraful kn-aut-sei=Alam kn-aut-mei=Ashraful aut-affil-num=1 ORCID= en-aut-name=TakaguchiYutaka en-aut-sei=Takaguchi en-aut-mei=Yutaka kn-aut-name=高口豊 kn-aut-sei=高口 kn-aut-mei=豊 aut-affil-num=2 ORCID= en-aut-name=TsuboiSadao en-aut-sei=Tsuboi en-aut-mei=Sadao kn-aut-name=坪井貞夫 kn-aut-sei=坪井 kn-aut-mei=貞夫 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=ellagic acid kn-keyword=ellagic acid en-keyword=4,4'-di-Ο-alkylellagic acid kn-keyword=4,4'-di-Ο-alkylellagic acid en-keyword=Ullmann coupling kn-keyword=Ullmann coupling en-keyword=oxidative coupling kn-keyword=oxidative coupling END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=87 end-page=92 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=The Outline of Totaling Result of The Class Evaluation Questionnaire by Students in 2001 kn-title=平成13年度学生による授業評価アンケートの集計結果と総括 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The committee of academic affairs of the Faculty of Environmental Science and Technology in 2001 planned and carried out "the class evaluation questionnaire survey by students" with original one. The committee has announced the totaling result of this survey, especially concerning both of the class evaluation and the self-estimation of student by themselves, in this paper. It is expected that these contents become the aid of the class improvement in near future. en-copyright= kn-copyright= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=The class evaluation questionnaire kn-keyword=The class evaluation questionnaire en-keyword=students kn-keyword=students en-keyword=2001 kn-keyword=2001 en-keyword=committee of academic affairs kn-keyword=committee of academic affairs en-keyword=outline of totaling result kn-keyword=outline of totaling result END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=1 end-page=5 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Simulations on Prevalence of Echinococcus multilocularis in Hokkaido on the Basis of Vole Population Dynamics en-subtitle= kn-subtitle= en-abstract= kn-abstract=In our study, we have investigated the influence of the intermediate host population density on the prevalence of Echinococcus multilocularis in the definitive host using a mathematical model of transmission. For the vole population (intermediate host) in Hokkaido, a model of population dynamics has been constructed in this paper which follows the seasonal and annual fluctuations. In the northeastern area, the vole density appears to fluctuate periodically with a 4 year cycle. The prevalence of Echinococcus multilocularis in the fox population (definitive host) can be affected by the density of vole through the fox ingesting infectious voles. Therefore we have prepared a food habit function of foxes and the logistic distribution has been proposed. The simulations which have been carried out using the mathematical model for transmission of Echinococcus multilocularis together with the vole dynamics have indicated that the prevalence in foxes is correlated and synchronized with the population dynamics of vole. In addition they have also made us recognize that it is necessary to introduce a suitable food habit function into the transmission model. en-copyright= kn-copyright= en-aut-name=OhgaYukio en-aut-sei=Ohga en-aut-mei=Yukio kn-aut-name=大賀潔生 kn-aut-sei=大賀 kn-aut-mei=潔生 aut-affil-num=1 ORCID= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=2 ORCID= en-aut-name=DoiRikuo en-aut-sei=Doi en-aut-mei=Rikuo kn-aut-name=土井陸雄 kn-aut-sei=土井 kn-aut-mei=陸雄 aut-affil-num=3 ORCID= en-aut-name=IshiiHiroyuki en-aut-sei=Ishii en-aut-mei=Hiroyuki kn-aut-name=石井裕之 kn-aut-sei=石井 kn-aut-mei=裕之 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=Department of Hygiene, School of Medicine, Yokohama City University affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=Echinococcus multilocularis kn-keyword=Echinococcus multilocularis en-keyword=food habit of foxes kn-keyword=food habit of foxes en-keyword=Hokkaido kn-keyword=Hokkaido en-keyword=population dynamics kn-keyword=population dynamics en-keyword=vole kn-keyword=vole END start-ver=1.4 cd-journal=joma no-vol=2 cd-vols= no-issue=1 article-no= start-page=89 end-page=98 dt-received= dt-revised= dt-accepted= dt-pub-year=1997 dt-pub=19970110 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Ultrasonic Inversion for Determining Crack Size in a Solid en-subtitle= kn-subtitle= en-abstract= kn-abstract=A linear scattering inverse method based in the Kirchhoff approximation is formulated to determine the location and size of a crack in a solid. A characteristic function, which defines the size of a crack, can be reconstructed from the inverse Fourier transform of scattered amplitudes at far field. The inverse method is applied to ultrasonic data scattered by a crack in an aluminum specimen. Agreement between reconstructed characteristic functions and exact ones is not good enough, because experimental conditions do not coincide with theoretical ones. We can, however, evaluate the location and size of a crack from sharp minimum points reproduced at crack tips. en-copyright= kn-copyright= en-aut-name=HiroseSohichi en-aut-sei=Hirose en-aut-mei=Sohichi kn-aut-name=廣瀬壮一 kn-aut-sei=廣瀬 kn-aut-mei=壮一 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=93 end-page=96 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Synthesis and Catalytic Activity of Surfactant-Templated Nanoporous TiO(2) en-subtitle= kn-subtitle= en-abstract= kn-abstract=Nanoporous TiO(2) were synthesized via hydrolysis of titanium tetraisopropoxide (TTIP) in HCl acidic conditions using sodium dodecylsulfate (SDS) as a templating agent. The order of the nanostructure of samples before calcination was improved with increasing the SDS/TTIP molar ratio. The calcined samples presented uniform mesopore structure with the average diameter of 4-5 nm and considerably large surface areas over 200m(2)/g, although the periodicity of the nanostructure was exceedingly reduced by the removal of the template. The prepared TiO(2) exhibited exceedingly higher activities on the catalytic oxidation of benzene compared to the commercial TiO(2), probably due to the difference of their pore suructures. en-copyright= kn-copyright= en-aut-name=NagamineShinsuke en-aut-sei=Nagamine en-aut-mei=Shinsuke kn-aut-name=長嶺信輔 kn-aut-sei=長嶺 kn-aut-mei=信輔 aut-affil-num=1 ORCID= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=TakahashiShinsuke kn-aut-sei=Takahashi kn-aut-mei=Shinsuke aut-affil-num=2 ORCID= en-aut-name=SasaokaEiji en-aut-sei=Sasaoka en-aut-mei=Eiji kn-aut-name=笹岡英司 kn-aut-sei=笹岡 kn-aut-mei=英司 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=template kn-keyword=template en-keyword=titania kn-keyword=titania en-keyword=lamellar nanostructure kn-keyword=lamellar nanostructure en-keyword=nanopore structure kn-keyword=nanopore structure en-keyword=catalyst kn-keyword=catalyst END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=7 end-page=16 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Mathematical Model for The Transmission of Lymphatic Filariasis and Its Applications en-subtitle= kn-subtitle= en-abstract= kn-abstract=We have constructed a stochastic transmission model for lymphatic filariasis caused by Wuchereria bancrofti, and have analyzed its prevalence using computer simulations. In Pondicherry, India, where Wuchereria bancrofti has been spreading, the Vector Control Research Centre has carried out an integrated vector control strategy against malaria and filariasis for five years (1981~1985) with good results reported. Our study was aimed at evaluating the effect of vector control in the context of Pondicherry, and in particular the continuous effect for the post-control period. In this paper, we have used the LYMFASIM model proposed by Plaisier et al., the carrying capacity model by Rochet and the population dynamics model by us. In the LYMFASIM model and the carrying capacity model, we have modified the quantities of parameters in order to fit the models to the parasitological, entomological and epidemiological data in Pondicherry. We have combined the improved LYMFASIM model with the other models. Through simulations of our combinated model, we have compared the prevalence rate in the human population as well as the mean number of L3-larvae in the mosquito population, with and without vector control. As a result, the simulations show that the prevalence rate would be restrained for a long time even if only a small continuous effect of the vector control remains in the post-control period. However, the mean number of L3-larvae would recovered within a short time comparatively. This is because of the differences in life spans between human and mosquito as well as the incubation periods between the adult worm in the human host and L3-larvae in the mosquito vector. en-copyright= kn-copyright= en-aut-name=IshiiHiroyuki en-aut-sei=Ishii en-aut-mei=Hiroyuki kn-aut-name=石井裕之 kn-aut-sei=石井 kn-aut-mei=裕之 aut-affil-num=1 ORCID= en-aut-name=IshikawaHirofumi en-aut-sei=Ishikawa en-aut-mei=Hirofumi kn-aut-name=石川洋文 kn-aut-sei=石川 kn-aut-mei=洋文 aut-affil-num=2 ORCID= en-aut-name=OhgaYukio en-aut-sei=Ohga en-aut-mei=Yukio kn-aut-name=大賀潔生 kn-aut-sei=大賀 kn-aut-mei=潔生 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Lymphatic filariasis kn-keyword=Lymphatic filariasis en-keyword=mathematical model kn-keyword=mathematical model en-keyword=Pondicherry kn-keyword=Pondicherry en-keyword=vector control kn-keyword=vector control en-keyword=Wuchereria bancrofti kn-keyword=Wuchereria bancrofti END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=97 end-page=101 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Decontamination of Waste-water by Metal Phthalocyanines Encapsulated in Polymeric Microcapsules kn-title=金属フタロシアニン内包マイクロカプセルによる廃液処理 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Polymeric microcapsules encapsulating iron phthalocyanine (Fe-Pc) and zinc phthalocyanine (Zn-Pc) were successfully prepared in this study. Absorption spectra of polymeric microcapsules encapsulating metal phthalocyanines were measured in visible light range. It was expected from the results that the polymeric microcapsules encapsulating metal phthalocyanines showed high photocatalytic activity upon irradiation with visible light such as sunlight. The catalytic and phtocatalytic activities of encapsulated Fe-Pc and Zn-Pc were investigated in the decomposition of methylene blue in water. The encapsulatedd Fe-Pc with H(2)O(2) exhibited a high catalytic activity. Methlene blue was efficiently decomposed by interaction of Fe-Pc with H(2)O(2). en-copyright= kn-copyright= en-aut-name=TakamiKoji en-aut-sei=Takami en-aut-mei=Koji kn-aut-name=高見浩二 kn-aut-sei=高見 kn-aut-mei=浩二 aut-affil-num=1 ORCID= en-aut-name=YoshizawaHidekazu en-aut-sei=Yoshizawa en-aut-mei=Hidekazu kn-aut-name=吉澤秀和 kn-aut-sei=吉澤 kn-aut-mei=秀和 aut-affil-num=2 ORCID= en-aut-name=SakataIsao en-aut-sei=Sakata en-aut-mei=Isao kn-aut-name=阪田功 kn-aut-sei=阪田 kn-aut-mei=功 aut-affil-num=3 ORCID= en-aut-name=KitamuraYoshiro en-aut-sei=Kitamura en-aut-mei=Yoshiro kn-aut-name=北村吉朗 kn-aut-sei=北村 kn-aut-mei=吉朗 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=株式会社光ケミカル研究所 affil-num=4 en-affil= kn-affil=岡山大学 en-keyword=microcapsule kn-keyword=microcapsule en-keyword=decomposition kn-keyword=decomposition en-keyword=metal phthalocyanine kn-keyword=metal phthalocyanine en-keyword=waste-water treatment kn-keyword=waste-water treatment en-keyword=suspension polymerizatio kn-keyword=suspension polymerizatio END start-ver=1.4 cd-journal=joma no-vol=8 cd-vols= no-issue=1 article-no= start-page=103 end-page=106 dt-received= dt-revised= dt-accepted= dt-pub-year=2003 dt-pub=200303 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Preparation of Biodegradable Polymer Microcapsules Enclosing Anti-mite Agent kn-title=防ダニ剤を内包した生分解性マイクロカプセルの調製 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Many kinds of mite was caused by allergy and sick house syndrome, so it has become one of the social problems. Farnesyl acetone is one of the most potent anti-mite agent. However the vapor pressure of farnesyl acetone is high even at room temperature. This indicates the anti-mite effect has not been sustained even though the agent has strong anti-mite effect. In this study, we attempted to prepare polylactide microcapsule with farnesyl acetone for the purpose of sustainable dosage form of anti-mite agent. Microcapsule was prepared by solvent evaporation, which was a method of microencapsulation. The effects of preparation conditions on the enclosing efficiency, the release of microcapsule and anti-mite effect of microcapsule were investigated. en-copyright= kn-copyright= en-aut-name=MinobeKouichi en-aut-sei=Minobe en-aut-mei=Kouichi kn-aut-name=簑部晃一 kn-aut-sei=簑部 kn-aut-mei=晃一 aut-affil-num=1 ORCID= en-aut-name=YoshizawaHidekazu en-aut-sei=Yoshizawa en-aut-mei=Hidekazu kn-aut-name=吉澤秀和 kn-aut-sei=吉澤 kn-aut-mei=秀和 aut-affil-num=2 ORCID= en-aut-name=KitamuraYoshiro en-aut-sei=Kitamura en-aut-mei=Yoshiro kn-aut-name=北村吉朗 kn-aut-sei=北村 kn-aut-mei=吉朗 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=farnesyl acetone kn-keyword=farnesyl acetone en-keyword=anti-mite effect kn-keyword=anti-mite effect en-keyword=polylactide kn-keyword=polylactide en-keyword=microcapsule kn-keyword=microcapsule en-keyword=solvent evaporation kn-keyword=solvent evaporation END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=17 end-page=21 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Stability analysis of mathematical models of infectious disease kn-title=感染症数理モデルの安定性解析 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Dynamics of infectious disease in vivo is described by coupled differential equations. Stability analysis of the complicated systems is difficult without computer calculation, while stability analysis is, in general, important to investigate qualitative behaviour of models. Liu analyzes stability of systems describing HIV dynamics in vivo with a symbolic calculation software. The same method is used for stability analysis of a mathematical model of malaria. en-copyright= kn-copyright= en-aut-name=MuraseAkiko en-aut-sei=Murase en-aut-mei=Akiko kn-aut-name=村瀬晶子 kn-aut-sei=村瀬 kn-aut-mei=晶子 aut-affil-num=1 ORCID= en-aut-name=SasakiToru en-aut-sei=Sasaki en-aut-mei=Toru kn-aut-name=佐々木徹 kn-aut-sei=佐々木 kn-aut-mei=徹 aut-affil-num=2 ORCID= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=mathematical model kn-keyword=mathematical model en-keyword=infectious disease kn-keyword=infectious disease en-keyword=dynamics in vivo kn-keyword=dynamics in vivo en-keyword=stability analysis kn-keyword=stability analysis en-keyword=symbolic calculation kn-keyword=symbolic calculation END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=1 article-no= start-page=1 end-page=10 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Statistical Assessement on Cancer Risks of Ionizing Radiation and Smoking Based on Poisson Models en-subtitle= kn-subtitle= en-abstract= kn-abstract=In many epidemiological and medical studies, a number of cancer motralities in catagorical classification may be considered as having Poisson distribution with person-years at risk depending upon time. The cancer mortalities have been evaluated by additive or multiplicative models with regard to background and excess risks based on several covariances such as sex, age at the time of bombings, time at exposure, or ionizing radiation, cigarette smoking habits, duration of smoking habits, etc. An interest herein to examine an additive, synergistic,or antagonistic relationship between radiation exposures and cigarette smoking habits for cancer mortalities. The results revealed a highly significant antagonistic influence for cancer mortalities from all nonhematologic findings, lung and respiratory system with negative interaction between radiation exposures and cigarette smoking amounts. en-copyright= kn-copyright= en-aut-name=TomitaMakoto en-aut-sei=Tomita en-aut-mei=Makoto kn-aut-name=冨田誠 kn-aut-sei=冨田 kn-aut-mei=誠 aut-affil-num=1 ORCID= en-aut-name=OtakeMasanori en-aut-sei=Otake en-aut-mei=Masanori kn-aut-name=大竹正徳 kn-aut-sei=大竹 kn-aut-mei=正徳 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Excess relative risks kn-keyword=Excess relative risks en-keyword=cancer mortalities kn-keyword=cancer mortalities en-keyword=antagonistic effects kn-keyword=antagonistic effects en-keyword=prospective studies kn-keyword=prospective studies en-keyword=atomic bomb survivors kn-keyword=atomic bomb survivors END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=1 article-no= start-page=1 end-page=8 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=201903 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2018年 環境数理学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=201903 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=表紙 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=201903 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=目次 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=1 article-no= start-page=9 end-page=20 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=201903 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2018年 環境デザイン工学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=1 article-no= start-page=21 end-page=37 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=201903 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2018年 環境管理工学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=1 article-no= start-page=39 end-page=52 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=201903 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2018年 環境物質工学科 学術論文等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=1 article-no= start-page=53 end-page=54 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=201903 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2018年 環境理工学部 研究受賞等 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=1 article-no= start-page=55 end-page=56 dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=201903 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=2018年 環境理工学部 博士論文 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=24 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2019 dt-pub=201903 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=奥付 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=岡山大学環境理工学部 kn-aut-sei=岡山大学環境理工学部 kn-aut-mei= aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil= END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=23 end-page=29 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Studies on Covariance Selection Models : Stepwise Procedure and Local Influence en-subtitle= kn-subtitle= en-abstract= kn-abstract=Analysis of covariance selection models is a useful multivariate method to analyze the covariance structure of a multivariate normal distribution. It is used to reveal cause-and-effect relationships. In the present paper we review the theory and study numerically how the stepwise procedure of covariance selection works in actual data analysis. Then we try to develop a method of influence analysis in covariance selection, and show a numerical example to illustrate the usefulness of the method of influence analysis. en-copyright= kn-copyright= en-aut-name=SungJiMin en-aut-sei=Sung en-aut-mei=JiMin kn-aut-name=成祉旻 kn-aut-sei=成 kn-aut-mei=祉旻 aut-affil-num=1 ORCID= en-aut-name=YangWooSung en-aut-sei=Yang en-aut-mei=WooSung kn-aut-name=梁祐誠 kn-aut-sei=梁 kn-aut-mei=祐誠 aut-affil-num=2 ORCID= en-aut-name=TanakaYutaka en-aut-sei=Tanaka en-aut-mei=Yutaka kn-aut-name=田中豊 kn-aut-sei=田中 kn-aut-mei=豊 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Covariance Selection kn-keyword=Covariance Selection en-keyword=Local Influence kn-keyword=Local Influence en-keyword=Influence Function kn-keyword=Influence Function en-keyword=Stepwise Procedure kn-keyword=Stepwise Procedure END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=31 end-page=38 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A Note on the Assessment of Local Influence in Statistical Models with Equality Constraints en-subtitle= kn-subtitle= en-abstract= kn-abstract=Relationship has been discussed by Tanaka and Zhang(1999) between the sensitivity analyses based on influence functions and on Cook's local influence, and it has been shown that equivalent results are obtained under general conditions by these analyses in statistical modeling without/with equality constraints. However, a condition implicitly assumed in the proof in Tanaka and Zhang(1999) in the case with equality constraints does not necessarily hold. The present paper gives a complete proof without assuming the condition. Also a formula for the normal curvature is derived for the convenience of practical computation. en-copyright= kn-copyright= en-aut-name=ZhangFanghong en-aut-sei=Zhang en-aut-mei=Fanghong kn-aut-name=張方紅 kn-aut-sei=張 kn-aut-mei=方紅 aut-affil-num=1 ORCID= en-aut-name=TanakaYutaka en-aut-sei=Tanaka en-aut-mei=Yutaka kn-aut-name=田中豊 kn-aut-sei=田中 kn-aut-mei=豊 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=Biostatistics Group, Bellsystem24, Inc. affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Local influence kn-keyword=Local influence en-keyword=influence function kn-keyword=influence function en-keyword=equality constraints kn-keyword=equality constraints END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=1 article-no= start-page=11 end-page=15 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=An Experimental Evaluation of Lake Flow Simulation en-subtitle= kn-subtitle= en-abstract= kn-abstract=The global positioning system is utilized in lake flow analysis to facilitate experimental evaluation for numerical results of a lake flow simulation. In our lake flow experiment a float travels on the lake surface receiving the fluid resistance due to lake flow, while a global positioning system receiver keeps track of its position. A momentum equation is derived when the product of the float mass and its acceleration is set equal to the driving force. The temporal change in the position of the float can be simulated when numerical solutions of lake flow equations are given. A comparison of numerical results and experimental data leads to an evaluation of the numerical simulation of lake flow. en-copyright= kn-copyright= en-aut-name=WatanabeMasaji en-aut-sei=Watanabe en-aut-mei=Masaji kn-aut-name=渡辺雅二 kn-aut-sei=渡辺 kn-aut-mei=雅二 aut-affil-num=1 ORCID= en-aut-name=KunisadaShigeyuki en-aut-sei=Kunisada en-aut-mei=Shigeyuki kn-aut-name=國貞茂幸 kn-aut-sei=國貞 kn-aut-mei=茂幸 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=lake flow kn-keyword=lake flow en-keyword=numerical simulation kn-keyword=numerical simulation en-keyword=GPS-float kn-keyword=GPS-float en-keyword=finite element method kn-keyword=finite element method END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=39 end-page=44 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=A Numerical Analysis and an Experimental Study of an Unsteady Flow in Kojima Lake en-subtitle= kn-subtitle= en-abstract= kn-abstract=We present some results of a finite element analysis for an unsteady flow in Kojima Lake. We also present an experimental result. The global positioning system was utilized in the experiment in order to record the temporal and the spatial data of a float traveling with the driving force of the fluid resistance. The spatial and temporal data were recorded to examine their correspondence with analytical results. en-copyright= kn-copyright= en-aut-name=WatanabeMasaji en-aut-sei=Watanabe en-aut-mei=Masaji kn-aut-name=渡辺雅二 kn-aut-sei=渡辺 kn-aut-mei=雅二 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=lake flow kn-keyword=lake flow en-keyword=numerical simulation kn-keyword=numerical simulation en-keyword=finite element method kn-keyword=finite element method en-keyword=global positioning system kn-keyword=global positioning system END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=1 article-no= start-page=17 end-page=23 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Speeds of travelling wave solutions in a mathematical model of some infectious disease in predator-prey system kn-title=捕食系の感染症数理モデルにおける進行波解の速度 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper we construct a simple mathematical model for infectious disease in a pradator-prey system, and study the speeds of travelling wave solutions of this model. We present a method of estimation of speeds and make a numerical study about this matter. en-copyright= kn-copyright= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=1 ORCID= en-aut-name=OkitaTomoki en-aut-sei=Okita en-aut-mei=Tomoki kn-aut-name=沖田知毅 kn-aut-sei=沖田 kn-aut-mei=知毅 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Travelling wave kn-keyword=Travelling wave en-keyword=Infectious disease kn-keyword=Infectious disease END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=45 end-page=53 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=A Study on Influence of Current Velocity on Phytoplankton kn-title=流動が植物プランクトンに及ぼす影響に関する研究 en-subtitle= kn-subtitle= en-abstract= kn-abstract=The main problems caused by eutrophication result from the increase of phytoplankton. Therefore, controlling the increase of phytoplankton is the most important. In this study, we discuss the influence of current velocity on the growth of phytoplankton based on the field experiments and laboratory experiments. The laboratory experiments for the influence of current velocity on the growth have been conducted using circular channels, and the field experiments were conducted using a shallow pond. The results of the experiments show current velocity inhibits the growth of phytoplankton. en-copyright= kn-copyright= en-aut-name=LiJinsong en-aut-sei=Li en-aut-mei=Jinsong kn-aut-name=季勁松 kn-aut-sei=季 kn-aut-mei=勁松 aut-affil-num=1 ORCID= en-aut-name=KawaraOsami en-aut-sei=Kawara en-aut-mei=Osami kn-aut-name=河原長美 kn-aut-sei=河原 kn-aut-mei=長美 aut-affil-num=2 ORCID= en-aut-name=OnoYosiro en-aut-sei=Ono en-aut-mei=Yosiro kn-aut-name=小野芳朗 kn-aut-sei=小野 kn-aut-mei=芳朗 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Eutrophication kn-keyword=Eutrophication en-keyword=growth of phytoplankton kn-keyword=growth of phytoplankton en-keyword=influence of current velocity kn-keyword=influence of current velocity en-keyword=experiment kn-keyword=experiment END start-ver=1.4 cd-journal=joma no-vol=1 cd-vols= no-issue=1 article-no= start-page=43 end-page=46 dt-received= dt-revised= dt-accepted= dt-pub-year=1996 dt-pub=199603 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Hilbert C*-Bimodules Given From Bundle Constructions en-subtitle= kn-subtitle= en-abstract= kn-abstract=This paper contains some remarks supplementary to the previous paper [KW] concerning Hilbert C*-bimodules given from bundle constructions and a example given by this construction concerning the product type action on C*-algebras. en-copyright= kn-copyright= en-aut-name=KajiwaraTsuyoshi en-aut-sei=Kajiwara en-aut-mei=Tsuyoshi kn-aut-name=梶原毅 kn-aut-sei=梶原 kn-aut-mei=毅 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Hilbert bimodule kn-keyword=Hilbert bimodule en-keyword=bundle kn-keyword=bundle en-keyword=tensor product kn-keyword=tensor product END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=1 article-no= start-page=25 end-page=34 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Principal Component Analysis for Functional Data en-subtitle= kn-subtitle= en-abstract= kn-abstract=In functional principal component analysis (PCA), we treat the data that consist of functions not of vectors (Ramsay and Silverman, 1997). It is an attractive methodology, because we often meet the cases where we wish to apply PCA to such data. But, to make this method widely useful, it is desirable to study advantages and disadvantages in actual applications. As alternatives to functional PCA, we may consider multivariate PCA applied to 1) original observation data, 2) sampled functional data with appropriate intervals, and 3) coefficients of basis function expansion. Theoretical and numerical comparison is made among ordinary functional PCA, penalized functional PCA and the above three multivariate PCA. en-copyright= kn-copyright= en-aut-name=YamanishiYoshihiro en-aut-sei=Yamanishi en-aut-mei=Yoshihiro kn-aut-name=山西芳裕 kn-aut-sei=山西 kn-aut-mei=芳裕 aut-affil-num=1 ORCID= en-aut-name=TanakaYutaka en-aut-sei=Tanaka en-aut-mei=Yutaka kn-aut-name=田中豊 kn-aut-sei=田中 kn-aut-mei=豊 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Functional data kn-keyword=Functional data en-keyword=Multivariate data kn-keyword=Multivariate data en-keyword=Principal component analysis kn-keyword=Principal component analysis en-keyword=Eigenvalue kn-keyword=Eigenvalue en-keyword=Eigenvecotor kn-keyword=Eigenvecotor END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=1 article-no= start-page=35 end-page=39 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Random Bit Strings and Antigenic Diversity ― Simulations kn-title=ランダムビットストリングと抗原多様性 ―コンピュータ・シミュレーション en-subtitle= kn-subtitle= en-abstract= kn-abstract=Transition of random bit strings is simulated by using pseudorandom numbers. Bit strings are considered as RNA of HIV virus here. Transition of random bit strings represents that of antigenic deversity. en-copyright= kn-copyright= en-aut-name=SasakiToru en-aut-sei=Sasaki en-aut-mei=Toru kn-aut-name=佐々木徹 kn-aut-sei=佐々木 kn-aut-mei=徹 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=random bit string kn-keyword=random bit string en-keyword=simulation of errors in RNA transcription kn-keyword=simulation of errors in RNA transcription en-keyword=antigenic diversity kn-keyword=antigenic diversity END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=55 end-page=74 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Damage factors analysis for small embankment dams due to the Hyogoken-Nambu earthquake special to Hokudan Town kn-title=兵庫県南部地震による北淡町を中心にしたため池の被害の要因分析 en-subtitle= kn-subtitle= en-abstract= kn-abstract=This study was performed to clarify which factors affected damage to take-ike (small embankment dams for irrigation in Japanese) of Hokudan Town on Awaji Island in western Japan due to Hyogoken-Nambu earthquake. Multivariate and ordinary statistical analysis were carried out using documentary data (181 damaged and 328 undamaged dams), and ordinary one was done for the results investigated in situ. The model for the multivariate analysis was created with 13 items and 94 categories for 4 groups (Location, Geology Structure, and History of Dam). As a result, the factors causing to damage for dam are (1) the nearest fault (Nojima, Mizukoshi and D2), (2) embankment volume (the larger the more), (3) angle of crest axis to epicenter (diagonal and normal), (4) distance to the nearest fault (less than 500 m), (5) distance to the epicenter (8 to 14 km which almost agree to the location of seismic intensity 7 JMA), (6) play view of dam axis (3 or 4 axes), (7) angle of crest axis to nearest fault (diagonal and normal), (8) elevation of dam site (over 100 m), (9) surface geology of dam site (non-cohesive soil), (10) era of construction (prior to 1891), and (11) soil properties of embankment (constructed of sand, smaller penetration resistance). en-copyright= kn-copyright= en-aut-name=FujiiHiroaki en-aut-sei=Fujii en-aut-mei=Hiroaki kn-aut-name=藤井弘章 kn-aut-sei=藤井 kn-aut-mei=弘章 aut-affil-num=1 ORCID= en-aut-name=KunimasaKana en-aut-sei=Kunimasa en-aut-mei=Kana kn-aut-name=国政華奈 kn-aut-sei=国政 kn-aut-mei=華奈 aut-affil-num=2 ORCID= en-aut-name=NanbaAkiyo en-aut-sei=Nanba en-aut-mei=Akiyo kn-aut-name=難波明代 kn-aut-sei=難波 kn-aut-mei=明代 aut-affil-num=3 ORCID= en-aut-name=YokomizoTakayuki en-aut-sei=Yokomizo en-aut-mei=Takayuki kn-aut-name=横溝隆之 kn-aut-sei=横溝 kn-aut-mei=隆之 aut-affil-num=4 ORCID= en-aut-name=NishimuraShin-ichi en-aut-sei=Nishimura en-aut-mei=Shin-ichi kn-aut-name=西村伸一 kn-aut-sei=西村 kn-aut-mei=伸一 aut-affil-num=5 ORCID= en-aut-name=ShimadaKiyoshi en-aut-sei=Shimada en-aut-mei=Kiyoshi kn-aut-name=島田清 kn-aut-sei=島田 kn-aut-mei=清 aut-affil-num=6 ORCID= en-aut-name=HoriToshio en-aut-sei=Hori en-aut-mei=Toshio kn-aut-name=堀俊男 kn-aut-sei=堀 kn-aut-mei=俊男 aut-affil-num=7 ORCID= en-aut-name=NishiyamaTatsuro en-aut-sei=Nishiyama en-aut-mei=Tatsuro kn-aut-name=西山竜朗 kn-aut-sei=西山 kn-aut-mei=竜朗 aut-affil-num=8 ORCID= en-aut-name=WakitaniYoshiaki en-aut-sei=Wakitani en-aut-mei=Yoshiaki kn-aut-name=脇谷芳招 kn-aut-sei=脇谷 kn-aut-mei=芳招 aut-affil-num=9 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 affil-num=4 en-affil= kn-affil=岡山大学 affil-num=5 en-affil= kn-affil=岡山大学 affil-num=6 en-affil= kn-affil=元岡山大学環境理工学部環境管理工学科(現東京農工大学) affil-num=7 en-affil= kn-affil=(株)ウエスコ affil-num=8 en-affil= kn-affil=岡山大学 affil-num=9 en-affil= kn-affil=岡山大学 en-keyword=Earth dam kn-keyword=Earth dam en-keyword=earthquake damage kn-keyword=earthquake damage en-keyword=site investigation kn-keyword=site investigation en-keyword=statistical analysis kn-keyword=statistical analysis en-keyword=case study kn-keyword=case study END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=1 article-no= start-page=41 end-page=45 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Influence of Coarse Aggregate on the Shrinkage of Normal and High-Strength Concretes en-subtitle= kn-subtitle= en-abstract= kn-abstract=Inclusion of aggregates leads to a reduction in drying shrinkage of cement paste. This is due to the elastic deformation of the aggregates that partly restrains the shrinkage deformation of cement paste. Hence, concrete with higher aggregate content exhibits smaller shrinkage. In addition, concrete with aggregates of higher modulus of elasticity or of rougher surfaces is more resistant to shrinkage process. In this paper the effects of the type of coarse aggregate on the shrinkage of normal and high-strength concretes are investigated. Two different types of crushed stone were used as coarse aggregates to produce the concrete mixtures used in this study. For each coarse aggregate type, two normal-strength concrete (NSC) mixtures and two high-strength concrete (HSC) mixtures were prepared. The 28-day compressive strength values of NSC mixtures were about 35 and 50 MPa, while those of HSC mixtures were 70 and 100 MPa, respectively. All shrinkage specimens were cured in water for 14 days after casting, then exposed to drying under the conditions of constant temperature (20℃) and relative humidity (60%). It has been shown that the type of the coarse aggregate influences shrinkage behaviour of both normal and high-strength concretes. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=AdamIhab kn-aut-sei=Adam kn-aut-mei=Ihab aut-affil-num=1 ORCID= en-aut-name=SakataKenji en-aut-sei=Sakata en-aut-mei=Kenji kn-aut-name=阪田憲次 kn-aut-sei=阪田 kn-aut-mei=憲次 aut-affil-num=2 ORCID= en-aut-name=AyanoToshiki en-aut-sei=Ayano en-aut-mei=Toshiki kn-aut-name=綾野克紀 kn-aut-sei=綾野 kn-aut-mei=克紀 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Shrinkage kn-keyword=Shrinkage en-keyword=Coarse aggregate kn-keyword=Coarse aggregate en-keyword=High-Strength Concrete kn-keyword=High-Strength Concrete en-keyword=Silica Fume kn-keyword=Silica Fume END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=75 end-page=89 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Tendency of Main Sightseeing-areas based on the Number of Tourists for Some 30 Years in Okayama Prefecture kn-title=観光客数の推移からみた岡山県の主要観光地の動向 en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper, the tendency of the number of tourists was examined for some 30 years at several sightseeing-areas in Okayama prefecture. Recently, large-scale parks on well-known theme have been built in Japan, the management strategy of sightseeing-spots is becoming harder. However, it is important for us to understand the peculiarity of local sightseeing-areas and advertise the information on unsophisticated nature and culture linked with surrounding ecological system consistently. Sustainable management of sightseeing-areas is affected and sustained by the thought and life-style of peoples living in the adjacent areas. en-copyright= kn-copyright= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=Tourists kn-keyword=Tourists en-keyword=Sightseeing-areas kn-keyword=Sightseeing-areas en-keyword=Sustainable Management kn-keyword=Sustainable Management en-keyword=Okayama Prefecture kn-keyword=Okayama Prefecture END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=1 article-no= start-page=47 end-page=52 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Study on Measuring System of Subsurface Contamination using Complex Dielectric Method en-subtitle= kn-subtitle= en-abstract= kn-abstract=For evaluating subsurface contamination, sampling method (boring) is commonly used, but this method cannot monitor the change of in-situ contamination and concentration with respect to time. The purpose of this study is to develop a measuring system for subsurface contamination in which a so-called FDR-V system (Frequency Domain Reflectometry with Vector network analyzer) was employed to measure the salinity contaminant. This FDR-V method is a coaxial probe method,which allows the measurement of the complex dielectric constant from 1GHz to 18GHz. The experimental study indicates the possibility in measuring both the salinity concentration and volumetric moisture content. en-copyright= kn-copyright= en-aut-name=KomatsuMitsuru en-aut-sei=Komatsu en-aut-mei=Mitsuru kn-aut-name=小松満 kn-aut-sei=小松 kn-aut-mei=満 aut-affil-num=1 ORCID= en-aut-name=NishigakiMakoto en-aut-sei=Nishigaki en-aut-mei=Makoto kn-aut-name=西垣誠 kn-aut-sei=西垣 kn-aut-mei=誠 aut-affil-num=2 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 en-keyword=Dielectric constant kn-keyword=Dielectric constant en-keyword=Subsurface kn-keyword=Subsurface en-keyword=Salinity concentration kn-keyword=Salinity concentration en-keyword=Volumetric moisture content kn-keyword=Volumetric moisture content END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=91 end-page=98 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=The separate or the combined effect of hypoxia and salinity on growth and ionic relations of four wheat varieties en-subtitle= kn-subtitle= en-abstract= kn-abstract=To evaluate hypoxic-salinity tolerance in wheat varieties, three Japanese varieties (Nourin-61, Chikugo Izumi and Shirasagi Komugi, relatively salt tolerant) and one Pakistani variety (Blue Silver, relatively salt sensitive) were grown under control, hypoxia, saline and hypoxic-saline conditions. The results suggested that relatively hypoxia and salt tolerant variety Nourin-61 was capable of producing the highest relative shoot yield under combined stress conditions. On the other hand, relatively sensitive variety to both hypoxia and salinity conditions, could not withstand harmful effects of combined stress. A more close correlation of plant growth characters between salinity and hypoxic-salinity than hypoxia and hypoxic-salinity indicated that varieties with higher salt tolerance would suffer less than varieties with higher hypoxia tolerance under combined stress conditions. And the balance of Na/K ratio in shoot tissues seems to be the major evaluation factor as the tolerant variety when salinity and hypoxia stress occur together. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KambohMaqsood Ahmed kn-aut-sei=Kamboh kn-aut-mei=Maqsood Ahmed aut-affil-num=1 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=2 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=hypoxia kn-keyword=hypoxia en-keyword=growth and ionic composition kn-keyword=growth and ionic composition en-keyword=salinity kn-keyword=salinity en-keyword=salt tolerance kn-keyword=salt tolerance en-keyword=wheat varieties kn-keyword=wheat varieties END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=1 article-no= start-page=53 end-page=65 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Management of Rural Region in Association with Its Regionality of the Western Part of Tottori Prefecture kn-title=鳥取県西部の地域性を活かした農村地域づくり en-subtitle= kn-subtitle= en-abstract= kn-abstract=In this paper the brief history, the status quo and the problem of regional management in association with its regionality were examined in Yodoe town and Mizokuchi town in the western part of Tottori Prefecture. These areas have the focus of Yonago city. Mt. Daisen and Kaike-spring have been well-known, and Tottori Flower Park recently attracts many tourists. However, agriculture also flourishes remarkably in these areas. Although Yodoe town has been celebrated for the waters and traditional umbrella, the town management recently makes the most of acorn and ancient tombs, giving emphasis to international relations and history. In Mizokuchi town the oldest legend of ogre has been investigated intently and the town management in connection with it has been proceeded. As these plannings use their histories and features peculiar to the area as a management concept, they have high originality. As a future problem, it may be necessary to built up a closer connection and coordinate each regional functions within the extensive areas. en-copyright= kn-copyright= en-aut-name=IchiminamiFumikazu en-aut-sei=Ichiminami en-aut-mei=Fumikazu kn-aut-name=市南文一 kn-aut-sei=市南 kn-aut-mei=文一 aut-affil-num=1 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 en-keyword=The Western Part of Tottori Prefecture kn-keyword=The Western Part of Tottori Prefecture en-keyword=Rural Area kn-keyword=Rural Area en-keyword=Regionality kn-keyword=Regionality en-keyword=Regional Coordination of Functions kn-keyword=Regional Coordination of Functions END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=99 end-page=106 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Effect of increasing salinity on growth and mineral composition of wheat varieties and role of sodium exclusion capacity in salt tolerance mechanisms en-subtitle= kn-subtitle= en-abstract= kn-abstract=A few wheat varieties including two Japanese wheat varieties were evaluated for their salt tolerance at seeding stage, their behavior to increasing salinity levels and role of Na exclusion capacity in salt tolerance mechanisms. The wheat varieties were grown in nutrient solution and subjected to 0 (control), 25,75 and 125 mM NaCl salinity levels for 7 days. Although the shoot growth was reduced while Na contents were increased progressively with increasing salinity in all varieties, the varieties were quite different in their response. Salt tolerant va rieties maintained less reduction in their root and shoot growth and better water relations in their shoots than salt sensitive varieties under saline conditions. The wheat varieties were quite different in their Na exclusion capacity. Poor growth in salt sensitive varieties might be due to higher accumulation of Na in their shoots resulting from low Na exclusion capacity of roots, higher Na transport to shoot and/or inferior compartmentation capability. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KambohMaqsood Ahmed kn-aut-sei=Kamboh kn-aut-mei=Maqsood Ahmed aut-affil-num=1 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=2 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=growth and mineral composition kn-keyword=growth and mineral composition en-keyword=increasing salinity kn-keyword=increasing salinity en-keyword=Na exclusion capacity kn-keyword=Na exclusion capacity en-keyword=salt tolerance kn-keyword=salt tolerance en-keyword=wheat varieties kn-keyword=wheat varieties END start-ver=1.4 cd-journal=joma no-vol=6 cd-vols= no-issue=1 article-no= start-page=67 end-page=79 dt-received= dt-revised= dt-accepted= dt-pub-year=2001 dt-pub=20010228 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Distribution of Mineral Ions in Root and Leaf Tissues and Their Role in Salt Tolerance of Wheat Varieties under Saline Conditions en-subtitle= kn-subtitle= en-abstract= kn-abstract=The distribution on Ca, K, Na and Cl in root and leaves was studied in salt tolerant variety (Chikugo Izumi) and salt sensitive variety (PB-81) of wheat under saline conditions. The plants grown in 5% Hoagland's nutrient solution were subjected to 100 mM NaCl salinity for one week before observation with scanning electron microscope and analysis of selected samples with X-ray microanalyzer. Root growth was not affected in salt tolerant variety but reduced significantly in salt sensitive variety. Shoot growth was reduced in both varieties but much higher in salt sensitive variety. Salinity increased accumulation of Na and Cl in all root cells including vascular cells in salt sensitive variety. Salt tolerant variety not only reduced uptake of Na and Cl under saline conditions but also restricted their accumulation in cortex maintaining vascular cells relatively free of these ions. Salt sensitive variety failed to block transport of Na and Cl from root to leaves leading to much accumulation of these ions in leaves under salinity sterss. en-copyright= kn-copyright= en-aut-name= en-aut-sei= en-aut-mei= kn-aut-name=KambohMaqsood Ahmed kn-aut-sei=Kamboh kn-aut-mei=Maqsood Ahmed aut-affil-num=1 ORCID= en-aut-name=OkiYoko en-aut-sei=Oki en-aut-mei=Yoko kn-aut-name=沖陽子 kn-aut-sei=沖 kn-aut-mei=陽子 aut-affil-num=2 ORCID= en-aut-name=AdachiTadashi en-aut-sei=Adachi en-aut-mei=Tadashi kn-aut-name=足立忠司 kn-aut-sei=足立 kn-aut-mei=忠司 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Ion distribution kn-keyword=Ion distribution en-keyword=salinity kn-keyword=salinity en-keyword=salt tolerance kn-keyword=salt tolerance en-keyword=wheat varieties kn-keyword=wheat varieties en-keyword=X-ray microanalysis kn-keyword=X-ray microanalysis END start-ver=1.4 cd-journal=joma no-vol=7 cd-vols= no-issue=1 article-no= start-page=107 end-page=111 dt-received= dt-revised= dt-accepted= dt-pub-year=2002 dt-pub=20020322 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Long-term Trend of Rainfall at Tsudaka Farm of Okayama University kn-title=岡山大学津高牧場における降雨変動特性 en-subtitle= kn-subtitle= en-abstract= kn-abstract=Characteristics of long-term change in rainfall at Tsudaka Farm of Okayama University were analyzed with data during the 20 years, from 1979 to 1998. The typical results were as follows: (1) The average of annual rainfall was 1203 mm at average, 1726 mm at maximum, and 666 mm at minimum. (2) The decreasing rate of the annual rainfall was 5.37 mm/year. (3) Trend of rainfall intensity in each rainfall duration showed an increase of which rate were 0.005~0.256 mm/h/year, contrary to the annual trend. (4) Rainfall intensities in n-years probability were estimated using the maximum rainfall intensity for each rainfall duration. en-copyright= kn-copyright= en-aut-name=MoroizumiToshitsugu en-aut-sei=Moroizumi en-aut-mei=Toshitsugu kn-aut-name=諸泉利嗣 kn-aut-sei=諸泉 kn-aut-mei=利嗣 aut-affil-num=1 ORCID= en-aut-name=YomotaAtsushi en-aut-sei=Yomota en-aut-mei=Atsushi kn-aut-name=四方田穆 kn-aut-sei=四方田 kn-aut-mei=穆 aut-affil-num=2 ORCID= en-aut-name=MiuraTakeshi en-aut-sei=Miura en-aut-mei=Takeshi kn-aut-name=三浦健志 kn-aut-sei=三浦 kn-aut-mei=健志 aut-affil-num=3 ORCID= affil-num=1 en-affil= kn-affil=岡山大学 affil-num=2 en-affil= kn-affil=岡山大学 affil-num=3 en-affil= kn-affil=岡山大学 en-keyword=Rainfall kn-keyword=Rainfall en-keyword=Rainfall intensity kn-keyword=Rainfall intensity en-keyword=Rainfall duration kn-keyword=Rainfall duration en-keyword=Talbot formula kn-keyword=Talbot formula en-keyword=Long-term trend kn-keyword=Long-term trend en-keyword=Tsudaka Farm of Okayama University kn-keyword=Tsudaka Farm of Okayama University END start-ver=1.4 cd-journal=joma no-vol=25 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=202003 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=表紙 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= END start-ver=1.4 cd-journal=joma no-vol=25 cd-vols= no-issue=1 article-no= start-page= end-page= dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=202003 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=目次 en-subtitle= kn-subtitle= en-abstract= kn-abstract= en-copyright= kn-copyright= END start-ver=1.4 cd-journal=joma no-vol=25 cd-vols= no-issue=1 article-no= start-page=1 end-page=4 dt-received= dt-revised= dt-accepted= dt-pub-year=2020 dt-pub=202003 dt-online= en-article= kn-article= en-subject= kn-subject= en-title=Efficient modelling of 3-d finite element mesh formation with use of 3-d topographic survey kn-title=3次元計測を利用した効率的な3次元有限要素モデル化法の提案 en-subtitle= kn-subtitle= en-abstract= kn-abstract= In this decade, 3-dimensional topographic survey has been developed by using the UAV as like drones. With the technique, the complete topographies of the geo-structures can be measured. Although the accurate shapes of the geo-structures can be obtained, the numerical methods as like the finite element method is are not related to the 3-dimensional survey directly. In this research, the finite mesh modelling technique with use of the 3-D topographic survey is developed. The models of the earth-fill embankments formed from measured 3-D data are introduced as the examples. en-copyright= kn-copyright= en-aut-name=KANESHIGEMinoru en-aut-sei=KANESHIGE en-aut-mei=Minoru kn-aut-name=金重稔 kn-aut-sei=金重 kn-aut-mei=稔 aut-affil-num=1 ORCID= en-aut-name=NISHIMURAShin-ichi en-aut-sei=NISHIMURA en-aut-mei=Shin-ichi kn-aut-name=西村伸一 kn-aut-sei=西村 kn-aut-mei=伸一 aut-affil-num=2 ORCID= en-aut-name=SHIBATAToshifumi en-aut-sei=SHIBATA en-aut-mei=Toshifumi kn-aut-name=柴田俊文 kn-aut-sei=柴田 kn-aut-mei=俊文 aut-affil-num=3 ORCID= en-aut-name=SHUKUTakayuki en-aut-sei=SHUKU en-aut-mei=Takayuki kn-aut-name=珠玖隆行 kn-aut-sei=珠玖 kn-aut-mei=隆行 aut-affil-num=4 ORCID= affil-num=1 en-affil= kn-affil=岡山大学大学院環境生命科学研究科 affil-num=2 en-affil= kn-affil=岡山大学大学院環境生命科学研究科 affil-num=3 en-affil= kn-affil=岡山大学大学院環境生命科学研究科 affil-num=4 en-affil= kn-affil=岡山大学大学院環境生命科学研究科 en-keyword=3-dimensional survey kn-keyword=3-dimensional survey en-keyword=UAV kn-keyword=UAV en-keyword=finite element mesh modelling kn-keyword=finite element mesh modelling END