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著者 Sakawa Masatoshi| Karino Atsushi| Kato Kosuke| Matsui Takeshi|
発行日 2009-11-10
出版物タイトル Proceedings : Fifth International Workshop on Computational Intelligence & Applications
2009巻
1号
資料タイプ 会議発表論文
JaLCDOI 10.18926/19610
フルテキストURL Mem_Fac_Eng_OU_33_1_31.pdf
著者 Iwamoto Hidehisa| 大崎 紘一| 梶原 康博| 宗澤 良臣| Hashimoto Atsufumi| 関 州二|
抄録 The nurse supporting robot system to prepare and hand surgical instruments to a surgeon is proposed to reduce work of nurse in a surgical operation. In this paper, the surgical instrument recognition system (SIRS) is developed to hand the surgical instruments to a surgeon by the robot. The characteristics ot the instruments are area of the instruments, ratio of minimum center-contour distance to maximum one and its outline contour, are recognized by using the image processing. Kinds of the instruments are distinguished by these characteristics.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1998-11-30
33巻
1号
開始ページ 31
終了ページ 37
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309084
著者 Sakawa Masatoshi| Hontani Takehisa| Kato Kosuke| Matsui Takeshi|
発行日 2009-11-10
出版物タイトル Proceedings : Fifth International Workshop on Computational Intelligence & Applications
2009巻
1号
資料タイプ 会議発表論文
JaLCDOI 10.18926/19608
フルテキストURL Mem_Fac_Eng_OU_33_1_19.pdf
著者 鷲尾 誠一| 高橋 智| 井元 智可至| 吉田 篤正|
抄録 The present paper deals with measurements of the diffusion coefficients as well as the saturated solubilities of single component gases such as N(2), O(2) and CO(2) to a mineral oil. The method to determine the diffusivity is based upon measuring the pressure changes caused by the one-dimensional diffusion between the gas and the oil enclosed in an airtight container. For N(2) and O(2) the profiles of the measured pressure changes agree well with those predicted by diffusion theory, whereas that is not the case with CO(2). Although the reason why CO(2) does not seem to obey diffusion theory has yet to be studied, it may suggest the possibility that the diffusion coefficient varies with the pressure, considering that the range of pressure change in the diffusivity measurement was much obtained by this method fell within ±30% around the average. Moreover the solubility measurements have made clear that Henry's law holds true between the three pure gases and the oils tested, and that O(2) and CO(2) dissolve into the oil approximately two and ten times more, respectively, than N(2).
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1998-11-30
33巻
1号
開始ページ 19
終了ページ 30
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309030
JaLCDOI 10.18926/19606
フルテキストURL Mem_Fac_Eng_OU_33_1_5.pdf
著者 阿部 武治| Namikoshi Ryuji| Nagayama Noriyuki| Takano Yasuju|
抄録 The influence of the slip between the inclusion and the matrix during the plastic deformation of inhomogeneous material with elliptic inclusions is investigated. The material is assumed to be rigid-plastic. The boundary slip region is modeled by assuming lower yield stress for the thin boundary region than those of the inclusion and the matrix. The rigid-plastic finite element method is used for the numerical calculation under the plane strain condition. The effects of the aspect ratio of the inclusion, the yield stress of the boundary region, and the volume fraction of the inclusion on the deformation mode are studied. The patterns of the strain concentration and the averaged flow stress of the inhomogeneous material are also discussed. The results may be helpful for understanding creep or superplastic deformation of metals with inclusions.
キーワード Plasticity Composite Material Sliding Inclusions Rigid-Plastic Deformation Finite Element Method
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1998-11-30
33巻
1号
開始ページ 5
終了ページ 17
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309204
JaLCDOI 10.18926/19604
フルテキストURL Mem_Fac_Eng_OU_33_1_1.pdf
著者 榊原 精| Kanadani, Teruto|
抄録 Aging of diolute Al-Ag alloys after quenching from low temperatures were studied mainly by electrical resistometry. Maximum resistivity observed in the aging curve of specimens quenched from high temeperature disappeared when the quenching temperature was lowered to 473 or 453K. When the quenching temperature was lowered further to 423K or lower, however, maximum resistivity reappeared. At the temperature lower than or equal to 423K but higher than the GP zone solvus, the alloys were not homogeneous but had clusters of solute atoms or fluctuation of solute concentration. Inhomogeneous distribution of solute atoms may affect the aging behavior after quenching from that temperature.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1998-11-30
33巻
1号
開始ページ 1
終了ページ 4
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309092
JaLCDOI 10.18926/19602
タイトル(別表記) STUDIES ON THE CHLORIDE AND SULFATE CONTENT OF WELL WATERS AND THE AMOUNTS OF CHLORIDE AND SULFATE FIXED TO SOIL IN THE MINERAL SPRING DISTRICTS (IX) SAGINOYU HOT SPRINGS, SHIMANE PREFECTURE, JAPAN.
フルテキストURL 015_001_005.pdf
著者 梅本 春次| 田中 重男|
抄録 At Saginoyu Hot Springs same experiments as those described in previous reports were carried out. Water temperature of Springs is about 50℃. and main constituents dissolved in spring water are calcium sulfate and sodium chloride, its total salt content being 1.5g./ℓ.. Experimental results obtained are shown in the annexed table and map. The results obtained may be discussed in two ways: First, the area marked with ※ is regarded as the spring zone, and a comparison is made by Cochran and Cox's method between this zone and the outside area as to the average contents of chloride and sulfate in well Water, the average water temperatures of well water and the average amounts of chloride and sulfate fixed to soil. The differences in averages of the chloride and sulfate content of well water are significant, while that in average water temperatures is not significant. The differences in the average amounts of chloride and sulfate fixed to soil are not significant. However, the difference in the average amounts of chloride fixed to soi1 is nearly same as that for the 5 % level, and it is seen that the average amount of chloride fixed to soil tends to be higher in the spring zone than in the outside area. Second, the area marked with t is regarded as the spring zone, and a comparison is made in the same way as the above. The differences in the averages of the chloride and sulfate contents and water temperatures of well waters, all being higher in the spring zone, are significant. The differences in average amounts of chloride and Sdlfate fixed to soil are not significant. However, since these differences are nearly same as that for the 5 % level, the average amounts of chloride and sulfate fixed to soil tend to be higher in the spring zone than in the outside area. As the existence of sources which would supply the chloride, sulfate and heat to the water and soil is impossible, the above differences may be due to effects of thermal springs. Since the spring zone may be defined as the zone effected by mineral springs, it is more appropriate to follow the second of the above two ways than to follow the first, and to regard the area marked with t as the spring zone. Then, the differences between the spring zone and the outside area are revealed more remarkably than otherwise. It is an interesing fact that the samples Nos. 3-6, though collected from the spots very near to the springs, do not belong to the spring zone.
出版物タイトル 岡山大学温泉研究所報告
発行日 1955-03-25
15巻
開始ページ 1
終了ページ 5
ISSN 0369-7142
関連URL http://ousar.lib.okayama-u.ac.jp/21510
言語 日本語
論文のバージョン publisher
NAID 40017532466
著者 村田 厚生| 平松 靖隆|
発行日 2009-11-12
出版物タイトル Proceedings : Fifth International Workshop on Computational Intelligence & Applications
2009巻
1号
資料タイプ 会議発表論文
JaLCDOI 10.18926/19593
タイトル(別表記) CHEMICAL STUDIES ON MISASA HOT SPRING (18) A PYRITE-POLYSULFIDE THEORY OF SULFUR SPRING
フルテキストURL 007_015_019.pdf
著者 芦沢 峻|
抄録 In Misasa there occur only few weak sulfur springs, their maximum hydrogen sulfide content being about 5mg per liter. The ground of Misasa consists of granite and there is no active volcano in the vicinity. So the author tried to explain the mechanism of the occurrence of sulfur spring in Misasa by a reaction of the primarily alkaline thermal water upon pyrite. Namely: XFeS(2) + 3Na(2)C(O)3 = 2Na(2)S(1-5) + Na(2)S(2)O(3) + 3CO(2) + XFeS(1-2) Thiosulfate in sulfur spring waters should not be taken for a secondary product from hydrogen sulfide as accepted generally, but is most probably a primary product to the latter. The phenomenon of white turbidity in sulfur spring is caused mainly by the sulfur liberated from the polysulfide decomposed by the change in pH and temperture of thermal waters and not by the sulfur liberated from the oxidation of hydrogen sulfide. Some experimental data were shown to support the theory.
出版物タイトル 岡山大学温泉研究所報告
発行日 1952-08
7巻
開始ページ 15
終了ページ 19
ISSN 0369-7142
言語 日本語
論文のバージョン publisher
NAID 120002309010
JaLCDOI 10.18926/19588
フルテキストURL Mem_Fac_Eng_OU_31_2_1.pdf
著者 Arisawa Hideaki| Song Zhi-Yi| 竹元 嘉利| 飛田 守孝|
抄録 The microstructure of oxidizing magnesium at elevated temperatures has been studied using HR-TEM, SEM and EDS. Two kinds of thin magnesium specimen for TEM observation were prepared. One was oxidized after preparing TEM foil of magnesium, the other was prepared from an oxidized bulk magnesium for observing the cross-section of oxide/Mg interfacial region. In the former, several oxides(MgO) morphologies were observed depending on the temperature and time of the oxidization. The growth of needle-like oxides formed at 573K and mottled oxides formed at 773K were recognized as a remarkable phenomenon belonging to the local oxidization. These oxides were composed of poly-crystal. The thin uniform oxidization layer was also observed in all conditions. In the cross-sectional observation, the local oxide layer, nearly 300nm in thickness, on the matrix(Mg) were observed. The thin uniform oxidized layer of bulk samples was identified as a kind of modified layer (~40nm in thickness) in which the formation of HR-TEM lattice fringes were prevented by the strain due to the slight oxidization.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1997-03-28
31巻
2号
開始ページ 1
終了ページ 10
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309082
JaLCDOI 10.18926/19585
フルテキストURL Mem_Fac_Eng_OU_29_1_23.pdf
著者 Kawara, Osami| Fukumoto Kohji|
抄録 In this study we investigated the water quality of surface runoff and groundwater runoff from the basins of the Yodo River and the Asahi River based on that separated by a numerical filter. The water quality of the surface runoff is greatly different from the groundwater runoff. The tendency of concentration change in accordance with river discharges is different from each other. The water qtiality of groundwater runoff changes with river discharges clockwise in many cases. The differences of COD and SS originating from those of population and industrial activities in each basin are found in the lower SS concentrations of the surface runoff and the COD cencentrations of the groundwater runoff. The nutrients and chlorine ion were investigated, too.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1994-11-30
29巻
1号
開始ページ 23
終了ページ 34
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309068
JaLCDOI 10.18926/19584
フルテキストURL Mem_Fac_Eng_OU_29_1_1.pdf
著者 Uno, Yoshiyuki| Kubota, Shin-ichiro| Yokomizo, Seiichi| Ogata, Kojiro| Tada, Nobuhiko|
抄録 Scribing of copper coated alumina ceramic board with Q-switched YAG laser used for the maskless direct patterning of circuit board is experimentally investigated, which leads to efficient production of trial circuit board. Better dividing of alumina circuit board 655μm in thickness can be attained by the scribing of about 100μm depth. Higher repetition frequency of laser irradiation leads to smaller notch angle and lower breaking load.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1994-11-30
29巻
1号
開始ページ 1
終了ページ 6
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309083
JaLCDOI 10.18926/19583
タイトル(別表記) BALNEOLOGICAL STUDIES USING RADIO-ACTIVE ISOTOPES (1) ON THE MECHANISM OF THE ACTION OF SODIUM SULFATE SPRING BATH.
フルテキストURL 007_001_005.pdf
著者 大島 良雄| 横田 剛男|
抄録 Using Na(2)SO(4) labelled with S(35) transition of sulfate ion into the body across the skin was investigated soon after the bath in sodium sulfate solution at varying conditions. Mice were used as test animal. Percutaneous absorption of sulfate ion proved to be promoted at high bath temperature (45℃) than at indifferent temperature(37℃). stronger by the bath of longer duration (30min.) than by the bath of shorter duration (10min.), increased after repeated baths than after a single bath. It was accelerated by making a burn to the skin of the bathed animals. Layton and Dziewiatkowski proved that the parenterally administered sulfate ion was partly fixed in the connective tissue as chondroitin sulfate. The author had proved that chondroitin sulfate relieves pain, increases peripheral circulation and when administered parenterally promotes production of immune bodies. In Japan natural and artificial Glauber's salt spring bath are known to have a beneficial effect on wound healing, but no satisfactory explanation was given till today. Lith reported that a hypertonic solution of sodium sulfate promoten wound cure by external application and Seki showed that subcutaneous connective tissue of mice was stimulated by the bath in sodium sulfate spring. And so the abovementioned author's data seem to throw some light on solving the problem.
出版物タイトル 岡山大学温泉研究所報告
発行日 1952-08
7巻
開始ページ 1
終了ページ 5
ISSN 0369-7142
言語 日本語
論文のバージョン publisher
NAID 120002309061
著者 半田 久志|
発行日 2009-11-10
出版物タイトル Proceedings : Fifth International Workshop on Computational Intelligence & Applications
2009巻
1号
資料タイプ 会議発表論文
著者 角南 宏|
発行日 1956-08-31
出版物タイトル 岡山医学会雑誌
68巻
8号
資料タイプ 学術雑誌論文
著者 福田 七生|
発行日 1956-08-31
出版物タイトル 岡山医学会雑誌
68巻
8号
資料タイプ 学術雑誌論文
著者 菅 昌夫|
発行日 1959-04-25
出版物タイトル 岡山医学会雑誌
71巻
5-2号
資料タイプ 学術雑誌論文
著者 戸川 立省|
発行日 1956-08-31
出版物タイトル 岡山医学会雑誌
68巻
8号
資料タイプ 学術雑誌論文
著者 菅 昌夫|
発行日 1959-04-25
出版物タイトル 岡山医学会雑誌
71巻
5-2号
資料タイプ 学術雑誌論文
著者 戸川 立省|
発行日 1956-08-31
出版物タイトル 岡山医学会雑誌
68巻
8号
資料タイプ 学術雑誌論文