| Author | Nishii, Kengo| Komatsu, Yasunobu| Yokomizo, Isao| |
|---|---|
| Published Date | 2005-02-01 |
| Publication Title | 岡山大学農学部学術報告 |
| Volume | volume94 |
| Issue | issue1 |
| Content Type | Departmental Bulletin Paper |
| JaLCDOI | 10.18926/15719 |
|---|---|
| FullText URL | Mem_Sch_Eng_OU_13_163.pdf |
| Author | Tanada Yoshihiro| Sano Hiroya| |
| Abstract | A new waveform analyzer based on the Walsh transform is developed and is applied to a real-time filtering of fast pulse signals, and the linear filterings of time signals through the Walsh transform is discussed. The analyzer converts a solitary waveform during 16 μs into the 16 Walsh amplitude spectra in a hybrid manner: it has the sequency band from 62.5 kzps to 500 kzps. The spectra are parallelly held during 16 μs by analog integrators, while serially displayed by the CRT, and one of them is digitally read out. The spectra of the test waves are measured within the error rate of several per cent. The analyzer is applied to the correlative detection of the photoelectric pulse signals in a gasspectroscopic system using a pulse laser, and there composes the matched filter, which is useful for measuring the signals superposed by Gaussian noises with a high accuracy. For the real-time filtering of fast signals, the arithmetic convolution and the frequency power spectra are approximated using the complex Walsh transform. These approximations are of practical use in 16 or 32 dimensions. Then, the matched filters for pulse peaking are given by the approximate convolution and by the dyadic convolution. |
| Publication Title | Memoirs of the School of Engineering, Okayama University |
| Published Date | 1979-03-05 |
| Volume | volume13 |
| Start Page | 163 |
| End Page | 180 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307519 |
| JaLCDOI | 10.18926/14900 |
|---|---|
| Title Alternative | Fluticasone 投与にもかかわらず症状が軽快ぜすn-3系不飽和脂肪酸強化食による食事療法及びモンテルカストが著効した気管支喘息の１例 |
| FullText URL | 076_053_059.pdf |
| Author | Takata, Shingo| Ashida, Kozo| Hosaki, Yasuhiro| Hamada, Masanori| Iwagaki, Naofumi| Kikuchi, Hiroshi| Mitsunobu, Fumihiro| |
| Abstract | A 25-year-old woman had the chief complaint of recurrent episodes of dyspnea and wheeze. Asthma had been diagnosed at infant years and sometimes experienced asthma attacks. She graduated senior high school and entered technical school in Tokyo. She received fluticasone (400μg daily) but exacerbation continued after she became an office clerk. She returned Kurashiki in October 2001 but had wheeze and asthma exacerbations. She was admitted to our hospital for evaluation and treatment of bronchial asthma on August 2, 2002. After admission, her symptoms subsided within some days. She was treated with montelukast and perilla seed oil-rich supplementation . The number of eosinophils decreased, decrease was observed in leukotriene (LT) B4 generation and in LTC4 generation, and pulmonary function improved following montelukast and perilla seed oil-rich supplementation for 4 weeks. The patient had no exacerbation under treatment and was discharged from the hospital on September 2, 2002. For some patients with persistent asthma, inhaled corticosteroids may fail to achieve adequate control possibly because corticosteroids do not completely inhibit the synthesis and release of cysteinyl leukotrienes (cysLTs) in the lung. Montelukast blocks the interaction of cysLTs with their receptor and resulting downstream events and perilla seed oil-rich diet suppresses LT generation. Combination therapy with montelukast and perilla seed oil-rich diet is more effective than montelukast or perilla seed oil-rich diet alone because of additive effects of montelukast with perilla seed oil-rich diet. We suggest that montelukast and perilla seed oil-rich supplementation are effective options when bronchial asthma patients receive inhaled corticosteroid but exacerbation continues. |
| Keywords | モンテルカスト (montelukast) 気管支喘息 (bronchial asthma) ロイコトリエンC4 (leukotriene C4) エゴマ油食 (perilla seed oil-rich supplementation) フルチカゾン (fluticasone) |
| Publication Title | 岡大三朝医療センター研究報告 |
| Published Date | 2008-03-01 |
| Volume | volume76 |
| Start Page | 53 |
| End Page | 59 |
| ISSN | 1348-1258 |
| language | English |
| File Version | publisher |
| NAID | 120002308179 |
| JaLCDOI | 10.18926/17872 |
|---|---|
| FullText URL | 028_123_141.pdf |
| Author | Okur Dincsoy Meltem| |
| Abstract | This study begins with the historical telecommunication backgrounds of Japan, ROK, and Turkey. These countries have similarities in the development of telecommunication sector throughout history including the privatization of the sector. However, a major dissimilarity appeared from use of the technologies and producing new technologies by the worldwide companies. The developments in ICT have strong relations with the socio-economic development of these countries. For this reason, this study focuses on; (i) economic development indicators, (ii) ICT indicators, and (iii) Principle Component Analyses. With the findings, it is aimed to find out applicable policies for Turkey. Finally, it is clearly observed that Turkey has great potential in the near future as a rapid developing country and a growing ICT market for foreign market players. However, Turkey also needs to create her own powerful and effective worldwide companies. |
| Keywords | ICT Development telecommunication innovation PCA Japan ROK Turkey |
| Publication Title | 岡山大学大学院社会文化科学研究科紀要 |
| Published Date | 2009-11-27 |
| Volume | volume28 |
| Start Page | 123 |
| End Page | 141 |
| ISSN | 1881-1671 |
| language | English |
| Copyright Holders | 岡山大学大学院社会文化科学研究科 |
| File Version | publisher |
| NAID | 120002308925 |
| JaLCDOI | 10.18926/ESR/13948 |
|---|---|
| FullText URL | ESR_2_81.pdf |
| Author | Osae, Shiloh| Kase, Katsuo| Yamamoto, Masahiro| |
| Abstract | The Ashanti gold deposit at Obuasi occurs in the Early Proterozoic Birimian formation. The orebodies consist of gold-sulphides disseminated in metasediments and metavolcanics, and gold-bearing quartz veins. Gold occurs mainly as native gold normally with arsenopyrite, pyrrhotite and pyrite in the metasediments and metavolcanics. In the quartz veins, however, it is associated with tetrahedrite and sphalerite. Microprobe analysis of gold grains gave an Ag content of about 8 wt.%. Textural relationships among the various mineral associations suggest that pyrrhotite, pyrite, arse-nopyrite and possibly gold may have been formed esrlier in the paragenetic sequence. The precipitation of some amounts of gold may have occurred during the later stages of the mineralisation sequence. Average arsenopyrite composition determined from electron microprobe study is: Fe: 33.6 ± 0.5 at.%, As: 29.3 ± 1.2 at.%, S: 37.1 ± 1.1 at.%, This suggests an average temperature of formation of less than 300℃ for the sulphides and possibly the gold assuming equilibrium was attained between pyrite, pyrrhotite and arsenpopyrite. The δ34S values for sulphide mineral separates are in the range between -4.1 and -10.8%. The values were, however, constrained between -4.1 and -7.0%. The narrow range and the depleted nature of the δ34S values may suggest a sedimentary sourcc of sulphur which may have undergone high temperature homegenisation before deposition. Sulphides from quartz vein samples had the most depleted δ34S values. This may indicate a different mineralisation history of the sulohides in the quartz veins from those dissemi-nated in metasediments and metavolcanics. |
| Keywords | Birimian Ashanti gold arsenopyrite |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 1995-09-20 |
| Volume | volume2 |
| Issue | issue1 |
| Start Page | 81 |
| End Page | 90 |
| ISSN | 1340-7414 |
| language | English |
| Copyright Holders | 岡山大学地球科学研究報告編集委員会 |
| File Version | publisher |
| NAID | 120002310561 |
| JaLCDOI | 10.18926/ESR/66846 |
|---|---|
| FullText URL | esr_030_021_035.pdf |
| Author | MAURER, Robert| HARKER, Stuart| SUZUKI, Shigeyuki| WHEELER, Allan| |
| Abstract | Mantle convection currents are the currently accepted driving force for plate tectonics that have ripped apart the continents and created oceans. Because of these actions, continental collisions and ocean closures have resulted. Our paper challenges the conventional concept and provides an alternate, mathematically justified drive mechanism. The pull-push motions of such convection currents in the upper mantle are here concluded to be too weak to be the driving mechanism. Our proposal for such global scale forces concerns the effect of an offset centre of mass of the Earth that results in rotational wobbling. Kepler’s laws of planetary motion demonstrate the rotational behavior of the Earth to be aligned with the Sun on the outward and inward motions of the elliptical orbit. The unbalanced rotation on a fixed gravitational axis results in circumferential stresses on the outer Earth’s rim that is more than strong enough to pull the continental plates apart. The proposed unbalanced rotational stress force equation is shown to be sufficient to drive the cyclic breakup and reassembly of the continental plates, as well as the generation of new oceanic crust and subduction zones. Mantle convection currents are here demonstrated to have a passive rather than active role in the plate movements. |
| Keywords | Differential circumferential tensile force Rotating Earth Offset centre of mass radius of eccentricity |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2024-03-31 |
| Volume | volume30 |
| Issue | issue1 |
| Start Page | 21 |
| End Page | 35 |
| ISSN | 1340-7414 |
| language | English |
| Copyright Holders | © 2024 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| JaLCDOI | 10.18926/ESR/56694 |
|---|---|
| FullText URL | esr_025_031_038.pdf |
| Author | Amano, Hideki| Suzuki, Shigeyuki| Sato, Masaru| Yanagida, Makoto| |
| Abstract | The study area is situated in Japan Sea side margin of the Shakotan Peninsula, Hokkaido, Japan, where MIS5e Terrace is preserved along the cost. Numbers of tight drilling have done to establish new method for terrace analysis. Buried wave cut terrace and sea cliff (when the MIS5e Terrace was formed) are reconstructed by distribution of the terrace deposits and these bottom of unconformity planes. The precise site and altitude of former shoreline was also obtained. Altitudes of the former shoreline from the 7 sections are almost the same 22 to 27m in height. Previous data of the height of shoreline are obtained from the topographic MIS5e Terrace surface. The altitudes have variation from 30m to 60m. It suggests that the traditional method for the MIS5e terrace analysis had some errors in the study area. |
| Keywords | MIS5e marine terrace terrace deposits tight drilling shoreline |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2018-12-27 |
| Volume | volume25 |
| Issue | issue1 |
| Start Page | 31 |
| End Page | 38 |
| ISSN | 1340-7414 |
| language | English |
| Copyright Holders | © 2018 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| JaLCDOI | 10.18926/ESR/42457 |
|---|---|
| Title Alternative | 西南日本の熱変成超苦鉄質岩体中のかんらん石と輝石の組成変化に関する覚書 |
| FullText URL | esr_017_001_005.pdf |
| Author | Nozaka, Toshio| |
| Abstract | This short article presents some diagrams showing the compositional variations of primary and metamorphic olivine, orthopyroxene and clinopyroxene in peridotites and serpentinites from thermally metamorphosed ultramafic complexes in SW Japan. In contrast to olivine, which shows a gradual change of chemical composition corresponding with metamorphic grade, orthopyroxene and clinopyroxene show clear differences in composition between primary and metamorphic phases. Compared with primary pyroxenes, even though their compositions could be variable depending on original rock composition, metamorphic orthopyroxene and metamorphic clinopyroxene is clearly deficient in Cr(2)O(3) and CaO, and in Cr(2)O(3) and Al(2)O(3), respectively. These characteristics are useful for the discrimination between the pyroxenes of different origin. |
| Keywords | chemical composition olivine orthopyroxene clinopyroxene metaperidotite |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2010-12-24 |
| Volume | volume17 |
| Issue | issue1 |
| Start Page | 1 |
| End Page | 5 |
| ISSN | 1340-7414 |
| language | English |
| Copyright Holders | © 2010 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| NAID | 120002753315 |
| JaLCDOI | 10.18926/fest/11556 |
|---|---|
| FullText URL | 003_011_024.pdf |
| Author | Watanabe, Masaji| |
| Abstract | We study a system that models a problem in which an oscillatory unit is coupled to a passive medium. We analyze the case in which an RCL circuit is coupled to an RC circuit. Some numerical results indicate when slow oscillations occur in coupled systems. |
| Keywords | coupled circuits Van der Pol's equation slow oscillations |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 1998-01-14 |
| Volume | volume3 |
| Issue | issue1 |
| Start Page | 11 |
| End Page | 24 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313697 |
| JaLCDOI | 10.18926/14960 |
|---|---|
| Title Alternative | n-3系脂肪散を強化した食事療法が有効と考えられた肺気腫の一例 |
| FullText URL | 069_049_056.pdf |
| Author | Tsugeno, Hirofumi| Ashida, Kozo| Mitsunobu, Fumihiro| Mifune, Takashi| Okamoto, Makoto| Hosaki, Yasuhiro| Tanizaki, Yoshiro| Tsuji, Takao| |
| Abstract | An effective treatment for the advanced stages of chronic obstructive pulmonary disease (COPD) has not been established yet. We report our recent experience of one patient with pulmonary emphysema treated by dietary supplementation of n-3 fatty acid for two months. He presented improvements in clinical symptoms and pulmonary function, and suppression of leukotriene B(4) generation by peripheral leukocytes. We consequently suppose that dietary treatment with n-3 fatty acids (perilla seed oil) may offer benefits for the treatment of pulmonary emphysema by competitively inhiabiting the conversion of arachidonicacid to leukotrienes and prostanoids. |
| Keywords | pulmonary emphysema n-3 fatty acid leukotriene diet therapy |
| Publication Title | 岡大三朝分院研究報告 |
| Published Date | 1998-12 |
| Volume | volume69 |
| Start Page | 49 |
| End Page | 56 |
| ISSN | 0918-7839 |
| language | English |
| File Version | publisher |
| NAID | 120002308253 |
| JaLCDOI | 10.18926/fest/11481 |
|---|---|
| FullText URL | 010_009_011.pdf |
| Author | Kajiwara, Tsuyoshi| Sasaki, Toru| |
| 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. |
| Keywords | Permanence dynamical system pathogen |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2005-02-28 |
| Volume | volume10 |
| Issue | issue1 |
| Start Page | 9 |
| End Page | 11 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313596 |
| JaLCDOI | 10.18926/55773 |
|---|---|
| FullText URL | hss_045_019_026.pdf |
| Author | Tanigaki, Shizuko| Kishida, Kensaku| Fujita, Akihito| |
| Publication Title | Journal of Humanities and Social Sciences |
| Published Date | 2018-03-22 |
| Volume | volume45 |
| Start Page | 19 |
| End Page | 26 |
| ISSN | 1881-1671 |
| language | English |
| Copyright Holders | Copyright (c) 2018 岡山大学大学院社会文化科学研究科 |
| File Version | publisher |
| NAID | 120006416129 |
| JaLCDOI | 10.18926/14352 |
|---|---|
| Title Alternative | 環境教育に関する生徒の知識、意識、関心に関する調査研究―日本の普通科高校を例として― |
| FullText URL | 006_021_032.pdf |
| Author | Agubeko, Julius Kofi| Nasu, Etsuyo| Kasai, Tomomi| Watanebe, Toshio| Edagawa, Kazuko| Kita, Masakazu| |
| Abstract | Education for Sustainable Development(ESD)-Environmental Education, has been a major concern at most UN summits. The 2002 Johannesburg Summit broadened the vision and re-affirmed the objective of the Millennium evelopment Goals (MDS) and proclaimed the Decade of Education for Sustainable Development for the period 2005-2014. This emphasized that education, is critical for promoting sustainable development and improving capacity of the people to address environment and development issues. This paper seeks to report, a finding on the level of student awareness and interests in environmental issues at a High School in Japan (a Super Science High School). A curricula unit was developed in the area of environmental education on soil. An actual chemistry class has been conducted in English. Pre & post lesson questionnaires were administered to the students. The result of the analysis indicates that, students are aware of environmental issues but need to be exposed to these issues in the form of activity-based classroom lessons. This we believe, will enable the students appreciate the fact that ESD is a life-wide and lifelong endeavor which challenges individuals, institutions and societies to view tomorrow as a day that belongs to all of us. This we presume is the main challenge of the MDS. |
| Keywords | Environmental Education （環境教育） Awareness (意識） Students' interest (関心） Curriculum （環境教育カリキュラム） Soil |
| Publication Title | 岡山大学教育実践総合センター紀要 |
| Published Date | 2006-03-25 |
| Volume | volume6 |
| Issue | issue1 |
| Start Page | 21 |
| End Page | 32 |
| ISSN | 1346-3705 |
| language | English |
| File Version | publisher |
| NAID | 120002308079 |
| JaLCDOI | 10.18926/fest/11424 |
|---|---|
| FullText URL | 011_009_014.pdf |
| Author | Nishina Tomohiko| Tian Tian Chen| Fujita Kazutoshi| Ishikawa, Hirofumi| |
| 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. |
| Keywords | Echinococcus multilocularis protoscoleces immunity worm burden stochastic model |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2006-03-15 |
| Volume | volume11 |
| Issue | issue1 |
| Start Page | 9 |
| End Page | 14 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002314034 |
| JaLCDOI | 10.18926/okadaironkou/60025 |
|---|---|
| FullText URL | okadaironkou_43_62_56.pdf |
| Author | 江口 泰生| |
| Publication Title | 岡大国文論稿 |
| Published Date | 2015-03-31 |
| Issue | issue43 |
| Start Page | 62 |
| End Page | 56 |
| ISSN | 0386-3123 |
| language | Japanese |
| File Version | publisher |
| NAID | 40020533688 |
| JaLCDOI | 10.18926/53835 |
|---|---|
| Title Alternative | A.Tatarinov ”Lexicon” Notes 4（ K～Л） |
| FullText URL | hss_040_001_012.pdf |
| Author | Eguchi, Yasuo| |
| Publication Title | 岡山大学大学院社会文化科学研究科紀要 |
| Published Date | 2015-11-25 |
| Volume | volume40 |
| Start Page | 1 |
| End Page | 12 |
| ISSN | 1881-1671 |
| language | Japanese |
| Copyright Holders | Copyright © 2015 岡山大学大学院社会文化科学研究科 |
| File Version | publisher |
| NAID | 120005749812 |
| JaLCDOI | 10.18926/54196 |
|---|---|
| Title Alternative | A.Tatarinov ”Lexicon” Notes 4（М～Н） |
| FullText URL | hss_41_001_012.pdf |
| Author | Eguchi, Yasuo| |
| Publication Title | 岡山大学大学院社会文化科学研究科紀要 |
| Published Date | 2016-03-25 |
| Volume | volume41 |
| Start Page | 1 |
| End Page | 12 |
| ISSN | 1881-1671 |
| language | Japanese |
| Copyright Holders | Copyright © 2016 岡山大学大学院社会文化科学研究科 |
| File Version | publisher |
| NAID | 120005749812 |
| JaLCDOI | 10.18926/15702 |
|---|---|
| FullText URL | Mem_Sch_Eng_OU_13_53.pdf |
| Author | Funabiki Shigeyuki| Nakanishi Senichiro| Himei Toyoji| |
| Abstract | An ac chopper circuit, which chops an ac voltage in a complete cycle for any lagging reactive load, is devised. The circuit is constructed of two ac-switches composed of power transistors and diodes. The load voltage is smoothly controlled by varying the time ratio of ac-switch. Transistors operate in a highfrequency chopping mode, thereby the ripples of the source current and the load current are easily filtered. Furthermore the input power factor of this model is better than that of the thyristor phase control circuit. In this paper, the construction and the driving method of this model are described. |
| Publication Title | Memoirs of the School of Engineering, Okayama University |
| Published Date | 1979-03-05 |
| Volume | volume13 |
| Start Page | 53 |
| End Page | 64 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307832 |
| Author | Okamoto, Ken'ichi| Ozawa, Junjiro| |
|---|---|
| Published Date | 1971 |
| Publication Title | Berichte des Ohara Instituts für landwirtschaftliche Biologie, Okayama Universität |
| Volume | volume15 |
| Issue | issue2 |
| Content Type | Departmental Bulletin Paper |
| Author | Yamaya, Tomoyuki| Matsumoto, Hideaki| |
|---|---|
| Published Date | 1989 |
| Publication Title | Berichte des Ohara Instituts für landwirtschaftliche Biologie, Okayama Universität |
| Volume | volume19 |
| Issue | issue4 |
| Content Type | Departmental Bulletin Paper |
