result 3683 件
| JaLCDOI | 10.18926/15357 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_35_53.pdf |
| Author | Kim Tae Yong| Kagawa, Yukio| |
| Abstract | Fresnel zone plate lens (FZPL) has widely been used in electromagnetic antenna applications. Most analysis method based on the potential (scalar) wave approximation has been applied to a few very limited and simplified cases. The present paper analyzes the FZPL in more general form including the diffraction and transmission using the method of moments (MoM). The focusing gain characteristics in the oblique incidence as well as in the normal incidence are considered. The MoM solution using the three-dimensional vectorial formulation requires a large memory space for the FZPL as it is operated at a short wavelength. This is simply overcome by using an iterative conjugate gradient method for the numerical evaluation. The MoM solutions are compared with the other solutions. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 2001-03-27 |
| Volume | volume35 |
| Issue | issue1-2 |
| Start Page | 53 |
| End Page | 61 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307849 |
| JaLCDOI | 10.18926/15354 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_34_1.pdf |
| Author | Song Baoyin| Inaba, Hideo| Horibe, Akihiko| Takahashi Takashi| |
| Abstract | The experiment for investigating the falling snow melting characteristics of warm water flowing along sheet channels spread on a roof was performed in Tookamachi city, Nigata prefecture from February 6 to February 7, 1995. The sheet surface temperatures at 11 positions in 3 channels were measured. A physical model for a gas-water-snow system was constructed to compare the predicted results with the measured ones. A fully spread uniform water film in the sheet channel was observed in the experiments. The experimental results elucidated that it was feasible to use warm water flowing along sheet channels for melting falling snow on roofs. The temperature drop in the sheet channel mainly depended on the snowfall intensity, atmospheric temperature and wind speed. Under the influence of the roof edge, the temperature drop in the channel next to the side edge was much larger than that in middle channels. A water-snow two phase flow or a snow covered frozen water was experienced temporarily in the lower reaches of the water flowing channel. These suggest that a larger water flow rate is needed for the channel next to the roof edge, and a higher inlet temperature or a greater water flow rate is required for a severe weather condition. There was reasonably good agreement between the measured and predicted water temperatures. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 2000-03-27 |
| Volume | volume34 |
| Issue | issue1-2 |
| Start Page | 1 |
| End Page | 12 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307686 |
| JaLCDOI | 10.18926/15348 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_35_21.pdf |
| Author | S.kovalenko, Volodymyr| Uno, Yoshiyuki| Okamoto, Yasuhiro| Anyakin, M.| Lutay, A.| Shubul, Khaled Al.| |
| Abstract | In electric power industry, there is a problem of achieving stable joint in different components using high productive and efficient technologies. One type of these components is packages of slices for magnetic circuit of electric motors, transformers etc., which need reliable means for their fixing. Laser welding is proposed to solve this problem as an alternative for existing technologies. The development of the laser welding process is presented based on process simulation, study of heat history and comparison with experimental results. Laser beam additional scanning technique is proposed to improve the quality and efficiency of the joining operation. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 2001-03-27 |
| Volume | volume35 |
| Issue | issue1-2 |
| Start Page | 21 |
| End Page | 28 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307424 |
| JaLCDOI | 10.18926/15346 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_35_9.pdf |
| Author | Abe, Takeji| Tsuboi, Tomoaki| |
| Abstract | The evaluation of microscopic inhomogeneity of polycrystalline aluminum is performed by measuring the hardness in respective grains. The recently developed ultra-micro hardness tester is used and the effects of the test pattern, the indentation load and the indenting velocity are examined. Then, the relationship between the increase in the hardness caused by the work hardening and the deformation of respective grains are statistically investigated. The hardness testing mode in which the initial load is applied before the onset of measurement gives more stable results than the testing mode without the initial load. The test condition with the indentation load of 9.8mN and the indentation velocity of 0.2 μm/sec seems to be optimum and gives the least dispersion of the measured values in grains. It is shown that the hardness values of respective grains in polycrystalline aluminum as well as their dispersion increase with the applied plastic strain. Discussion is made on the microscopic deformation behavior of polycrystalline aluminum. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 2001-03-27 |
| Volume | volume35 |
| Issue | issue1-2 |
| Start Page | 9 |
| End Page | 19 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307825 |
| JaLCDOI | 10.18926/15344 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_35_1.pdf |
| Author | Abe, Takeji| Hualin Song| Akagi Yasuo| Shimizu, Ichiro| |
| Abstract | Free surface of polycrystalline metal becomes roughened after plastic deformation. The surface roughening is closely related to the inhomogeneity of polycrystalline metals, that is, to the inhomogeneous plastic deformation of respective grains. In the present study, inhomogeneous deformation on the free surface of polycrystalline aluminum specimen during uniaxial tension is studied. The inhomogeneous deformation of grains in the central area of the free surface of specimen is observed by the laser scanning microscope, while the inhomogeneous deformation perpendicular to the surface is studied by the laser scanning microscope as well as the stylus measuring instrument. It is shown that the surface roughness and the strain of respective grains increase with the applied strain. Discussions are made on the change in the surface roughness, the strain in each grain and the slip-line angles with the applied strain. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 2001-03-27 |
| Volume | volume35 |
| Issue | issue1-2 |
| Start Page | 1 |
| End Page | 8 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307340 |
| JaLCDOI | 10.18926/15292 |
|---|---|
| Title Alternative | The deveropment of introduction to nursing - The first report. From the viewpoint of Humanologies by Murtin Buber. |
| FullText URL | 007_2_121_128.pdf |
| Author | Kato, Kumiko| |
| Abstract | 看護学概論は看護の本質を追究する教科である｡近年,看護の質が論じられ,その中でも患者―看護婦関係の質や患者理解の質が重視されている。本研究は,マルチン･ブーバーの人間学の立場を理解し,人間を尊重した看護を実践したフローレンス･ナイチンゲールの生涯と看護婦観を彼の人間学の立場から分析した｡更に,関係の仕方と看護の関係について言及した｡ |
| Keywords | 看護学概論 (Introduction to Nursing) 人間学 (Humanology) われ―なんじの関係 (I-thou relationship) フローレンス・ナイチンゲール (Florence Nightingale) |
| Publication Title | 岡山大学医療技術短期大学部紀要 |
| Published Date | 1997-01-31 |
| Volume | volume7 |
| Issue | issue2 |
| Start Page | 121 |
| End Page | 128 |
| ISSN | 0917-4494 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002307553 |
| JaLCDOI | 10.18926/15269 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_35_47.pdf |
| Author | Doumae, Yukihiro| Konishi, Masami| Imai, Jun| Asada, Hideki| Kitamura, Akira| |
| Abstract | In this paper, an identification method of motor parameters for the diagnosis of rotor bar defects in the squirrel cage induction motor is proposed. It is difficult to distinguish the degree of deterioration by a conventional diagnostic method such as Fourier analysis. To overcome the difficulty, a motor simulator is used to identify the degree of deterioration of rotors in the squirrel cage induction motor. Using this method, the deterioration of rotor bars in the motor can be estimated quantitatively. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 2001-03-27 |
| Volume | volume35 |
| Issue | issue1-2 |
| Start Page | 47 |
| End Page | 51 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307181 |
| JaLCDOI | 10.18926/15216 |
|---|---|
| Title Alternative | Achievement levels of students on clinical nursing practice for chronic illness |
| FullText URL | 013_2_083_090.pdf |
| Author | Hayashi, Yuko| Kageyama, Jingo| Nakanishi, Yoshiko| Ishizaki, Hiroyuki| Morimoto, Michiko| Mori, Keiko| Tsuboi, Keiko| |
| Abstract | 実習目標の到達度及び実習目標間の関係を明らかにするために,74名の学生による実習目標の自己評価を分析した｡その結果,実習目標の到達度は,｢自己の看護観や自己成長を培う｣が最も高かった｡そして｢疾患の病態生理や検査･治療についての理解と看護援助｣｢セルフケアに向けた看護援助｣｢危機に直面している患者の看護援助｣などの看護実践面に関する目標が高値を示していた｡学生は目標に沿った看護を実践する中で,経験したひとつひとつのケアを意味づけたり,看護とは何かを探求していったと思われ,それが看護観の形成や自己成長につながっていったものと考えられた｡実習目標間の関係では,各実習目標との間に相関が見られ,それらは信頼性のある妥当な慢性期看護実習の目標であることが確認された｡ |
| Keywords | 慢性期看護実習 (Clinical nursing practice) 実習目標の到達度 (Achievement levels) 自己評価 (Self-assessment) 実習目標間の関係 (Relationships between each objective) |
| Publication Title | 岡山大学医学部保健学科紀要 |
| Published Date | 2003-03-20 |
| Volume | volume13 |
| Issue | issue2 |
| Start Page | 83 |
| End Page | 90 |
| ISSN | 1345-0948 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002307175 |
| JaLCDOI | 10.18926/ESR/15024 |
|---|---|
| Title Alternative | Microscopic observations of the recent soils: a step for understanding the paleosols |
| FullText URL | 015_009_032.pdf |
| Author | 福地 亮| Suzuki, Shigeyuki| |
| Abstract | The microscopic observations of the recent soil horizons were conducted in Okayama, Japan (moderate climate). The several soil horizons, including two surface (epipedon) and three subsurface horizons, were recognized in the forest, poorly vegetated hill, and riverside around the Okayama University. The umbric epipedon can be segregated from the organic-rich subsurface horizons by the scattered organic materials in thin sections. The ochrich epipedon shows the sandy matrix without any cements and the illuviation of clay minerals. The subsurface horizons identified in the study area are as follows: albic, argillic, and cambic horizons. Each subsurface horizon shows the specific structures in thin sections. The albic horizon is characterized by the absence of the illuviation. The argillic horizon definitely shows the clayey matrix and the illuviation of clay minerals. The primary structures may be retained in the cambic horizon. The microscopic examination of the Miocene paleosols from the Ukan-cho, Okayama, was attempted. By comparing the recent soils, the cambic horizon and spodic horizon, which is characterized by the concentration of sesquioxides, are identified in the paleosols. This attempt suggests that the microscopic observations of the recent soils is a useful guide to understanding the paleosols |
| Keywords | soil paleosol soil horizon soil structure microscopic observation |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2009-03-31 |
| Volume | volume15 |
| Issue | issue1 |
| Start Page | 9 |
| End Page | 32 |
| ISSN | 1340-7414 |
| language | Japanese |
| Copyright Holders | 岡山大学地球科学研究報告編集委員会 |
| File Version | publisher |
| NAID | 120002307964 |
| JaLCDOI | 10.18926/ESR/15022 |
|---|---|
| Title Alternative | Permian and Triassic molluscan fossils from the Maizuru Zone,Okayama City, Southwest Japan |
| FullText URL | 015_001_008.pdf |
| Author | Nakazawa, Keiji| Roger Lyman Batten| Suzuki, Shigeyuki| Uwada, Hideto| |
| Abstract | Permian and Triassic molluscan fossils are found from Mitsu-area, Okayama City, Southwest Japan. Permian bivalve and gastropod fossils are collected from mudstones of the Upper Formation of the Maizuru Group. 4 species of bivalves (Nuculopsis? sp. ind., Leptodesma sp. ind., Streblopteria cf. eichwaldi, Posidonia sp. ind.) and 5 species of gastropods (Worthenia cf. corrugata, Callitomaria n. sp. cf. stanislavi, Apachella n. sp. ind., ??Eunemopsis like trochid, ??Yunnania sp.) are identified. Lower Triassic bivalve fossils are collected from sandstones of the Oono Formation. Neoschizodus cf. laevigatus and Bakevellia (Maizuria) kambei are identified. |
| Keywords | Permian Triassic bivalve and gastropod fossils the Maizuru Zone Mitsu area |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2009-03-31 |
| Volume | volume15 |
| Issue | issue1 |
| Start Page | 1 |
| End Page | 8 |
| ISSN | 1340-7414 |
| language | Japanese |
| Copyright Holders | 岡山大学地球科学研究報告編集委員会 |
| File Version | publisher |
| NAID | 120002307247 |
| JaLCDOI | 10.18926/14912 |
|---|---|
| FullText URL | 071_073_075.pdf |
| Author | Ashida, Kozo| Tsugeno, Hirofumi| Hosaki, Yasuhiro| Mitsunobu, Fumihiro| Mifune, Takashi| Nishida, Norikazu| Okamoto, Makoto| Takata, Shingo| Tanizaki, Yoshiro| Tsuji, Takao| |
| Abstract | 症例は80才，女性。76才時［平成7年11月］より肝機能異常［アルカリフォスファターゼ高値］を認め，肝機能異常出現1年7ケ月後，血清学的検索で原発性胆汁性肝硬変症が疑われたが，無治療にて外来で経過を観察を行った。アルカリフォスファターゼ値は漸増傾向を示し，トランスアミナーゼ値の異常も伴ってきたため，平成12年11月精査目的で入院。組織検査等で無症候性原発性胆汁性肝硬変症［PBC］と診断した。PBCは中年・女性に好発する疾患で，高齢【特に後期高齢者］での発症は極めて稀である。4年間の自然経過も含め，興味深いと考えられたので報告する。 |
| Keywords | 原発性胆汁性肝硬変症 (primary biliary cirrhosis) 高齢 (elderly) 自然経過 (natural course) |
| Publication Title | 岡大三朝分院研究報告 |
| Published Date | 2001-02-01 |
| Volume | volume71 |
| Start Page | 73 |
| End Page | 75 |
| ISSN | 0918-7839 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002308230 |
| Author | Matsuo Tetsuko| Murata, Atsuo| |
|---|---|
| Published Date | 2008-12-11 |
| Publication Title | Proceedings : Fourth International Workshop on Computational Intelligence & Applications |
| Volume | volume2008 |
| Issue | issue1 |
| Content Type | Conference Paper |
| Author | A.I.. ABDUL| Murata, Atsuo| A.E. OLULEYE| |
|---|---|
| Published Date | 2008-12-11 |
| Publication Title | Proceedings : Fourth International Workshop on Computational Intelligence & Applications |
| Volume | volume2008 |
| Issue | issue1 |
| Content Type | Conference Paper |
| Author | Ohta Yukio| Murata, Atsuo| |
|---|---|
| Published Date | 2008-12-11 |
| Publication Title | Proceedings : Fourth International Workshop on Computational Intelligence & Applications |
| Volume | volume2008 |
| Issue | issue1 |
| Content Type | Conference Paper |
| Author | Nishimura, Tokue| Handa, Hisashi| |
|---|---|
| Published Date | 2008-12-11 |
| Publication Title | Proceedings : Fourth International Workshop on Computational Intelligence & Applications |
| Volume | volume2008 |
| Issue | issue1 |
| Content Type | Conference Paper |
| Author | Murata, Atsuo| Miyake, Takashi| |
|---|---|
| Published Date | 2008-12 |
| Publication Title | Proceedings : Fourth International Workshop on Computational Intelligence & Applications |
| Volume | volume2008 |
| Issue | issue1 |
| Content Type | Conference Paper |
| Author | Murata, Atsuo| Moriwaka, Makoto| |
|---|---|
| Published Date | 2008-12 |
| Publication Title | Proceedings : Fourth International Workshop on Computational Intelligence & Applications |
| Volume | volume2008 |
| Issue | issue1 |
| Content Type | Conference Paper |
| Author | Murata, Atsuo| Mizushima, Kensuke| |
|---|---|
| Published Date | 2008-12 |
| Publication Title | Proceedings : Fourth International Workshop on Computational Intelligence & Applications |
| Volume | volume2008 |
| Issue | issue1 |
| Content Type | Conference Paper |
| Author | Murata, Atsuo| Takahashi, Rina| |
|---|---|
| Published Date | 2008-12 |
| Publication Title | Proceedings : Fourth International Workshop on Computational Intelligence & Applications |
| Volume | volume2008 |
| Issue | issue1 |
| Content Type | Conference Paper |
| Author | Murata, Atsuo| Takahashi, Rina| |
|---|---|
| Published Date | 2008-12 |
| Publication Title | Proceedings : Fourth International Workshop on Computational Intelligence & Applications |
| Volume | volume2008 |
| Issue | issue1 |
| Content Type | Conference Paper |
