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JaLCDOI 10.18926/19619
フルテキストURL Mem_Fac_Eng_OU_31_1_1.pdf
著者 榊原 精| Nakagawa, Keiyu| Hosokawa, Norio| Kanadani, Teruto|
抄録 Dependence of precipitation hardening on the distance from specimen surface and effect of the surface layer on the fatigue strength of an Al-1.2mass% Si alloy were studied by microhardness test, transmission electron microscopy and repeated tension fatigue test. Rate of age-hardening was slower in the vicinity of surface than in the interior of the specimen aged at 423K after quenching from 853K. The result of the electron microscopy was that the size ot Si precipitates formed in the vicinity of surface was smaller than in the interior of specimen aged for 6ks at 423K. This difference was considered to be caused by the effect of the surface as vacancy sinks which slowed down the growh of Si precipitates in the vicinity of the specimen surface. A specimen surface layer whose hardness was different from that of the specimen interior was formed at the vicinity of the surface when the specimen was aged at relatively low temperature such as 423K. The fatigue strength in repeated tensile test ot the specimen did not depend on whether the specimen surface layer was present or not.
出版物タイトル Memoirs of the Faculty of Engineering, Okayama University
発行日 1996-12-27
31巻
1号
開始ページ 1
終了ページ 3
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120005816788
JaLCDOI 10.18926/19618
フルテキストURL Mem_Fac_Eng_OU_33_1_59.pdf
著者 Fujihara Yutaka| 大崎 紘一|
抄録 In this paper, we propose a method to solve simultaneously facility layout problem and scheduling problem. About a initial random layout planning, the production scheduling and the transportation scheduling of AGV are obtained by using priority rules. From the obtained transportation scheduling, the critical transportation and the closeness rating are obtained. Facility layout is renewed by the combined procedure of genetic algorithm and tabu search in order to reduce the material handling cost. By using this renewed facility layout, the production scheduling and the transportation scheduling of AGV are also revised until no further improvement is possible.
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 59
終了ページ 64
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002308989
著者 Nguyen Hien M.| Cooper Eric W.| Kamei Katsuari|
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 10.18926/19616
フルテキストURL Mem_Fac_Eng_OU_33_1_53.pdf
著者 Li Sen| 大崎 紘一| 梶原 康博| 宗澤 良臣|
抄録 A method for designing a monitoring system with multiple cameras is proposed in order to supervise and recognize the progress of wide work area. First, a wide view camera is deveeloped by combining several usual cameras so that its visual angle could cover more than π/2. Secondly, A method for determining the number and location points of cameras is proposed by considering the shape of monitored area and the installation cost of cameras. The monitored area is divided into three kinds of basic shape (rectangular form, L form and convex form). For every basic shape area, the camera is located at the vertex pasition, so that the whole area can be monitored by the camera.
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 53
終了ページ 57
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309122
JaLCDOI 10.18926/19615
フルテキストURL Mem_Fac_Eng_OU_33_1_47.pdf
著者 神代 充| 大崎 紘一| 梶原 康博| 宗澤 良臣|
抄録 In this paper, we propose the recognition methods by image processing using 2D or 3D CAD. In the case of 2D CAD, an object is recognized by comparing five characters calculated from the center of gravity and contour. In the case of 3D CAD, there are two recognition methods. Firstly 3D CAD figure is transformed into 2D CAD figures. And an object is recognized by comparing 2D CAD figures with inputted images. Secondly the three dimensional coordinates of vertexes on an object are calculated from the images taken from some cameras and compared 3D coordinates with those of 3D CAD figures and recognized the sort of an object.
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 47
終了ページ 52
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309202
著者 Lee Wan-Jui| Yang Chih-Cheng| Lee Shie-Jue|
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 10.18926/19613
タイトル(別表記) KLINISCHE UND EXPERIMENTELLE UNTERSUCHUNGEN UBER DIE WIRKUNG VON THERMALBADERN AUF DIE SEXUALFUNKTION VON FRAUEN (7) DER EINFLUSS DES THERMALBADES AUF DIE CHOLINESTERASE AKTIVITAT VON ZWISCHENHIRN, ENDHIRN, LEBER UND SERUM DER RATTE
フルテキストURL 015_016_028.pdf
著者 田中 良憲|
抄録 Es ist bekannt, dass die Thermalbader den Einfluss auf die vegetativen Nervenfunktionen haben. Anderseits sind die Cholinesterase Aktivitat von Gehirn und die Nervenfunktionen eng miteinander verbunden. Mehrere Arbeiten stellt die Veranderungen der Cholinesterase von Serum bei Thermalbad fest, aber diese von Gehirn wird kaum untersucht. Daher um Veranderungen der Zentralnervenfunktionen durch dem Thermalbad zu forschen, wurde die Cholinesterase Aktivitat von Gehirn von Ratten bestimmt, dabei wurde diese von Serum und Leber auch bestimmt. Die mannliche Ratten wurden unmittelbar, oder 30. Minute, oder 60. Minute nach dem Bade (42℃, 10 Minuten)durch Dekapitation getotet, dann wurden Endhirn, Zwischenhirn, Leber und Serum durch Hesterinsche Methode (Abb. 1~3) untersucht, und wurden mit Kontrolltieren (Tabelle 1.) verglichen. Nach Hesterinsche Methode stellt die Cholinesterase Aktivitat sich als Acetylcholingewicht (mg), das Gewebe 0.1g oder Serum 0.1cc in 30 Minuten zersetzen kann. Art dse Bades- 1. Susswasser - Abb. 4 Tabelle Ⅱ. 2. Die schwach radioaktive Therme (MISASA) - Abb. 5 Tabelle Ⅲ. 3. Die stark radioaktive Therme (MISASA) - Abb. 6 Tabelle Ⅳ. 4. Die letzte Therme (3), aber kein Radon durch monatlangen Aufspeicherung. - Abb 7 Tabelle Ⅴ. Resultat - 1) Cholinesterase Aktivitat der Kontrolltieren - Zwischenhirn 6.25, Endhirn 4.01, Leber 0.29, Serum 0.17 2) In Zwischenhirn, Endhirn wurde die vorubergehende statistisch signifikante Zunahme von Cholinesterase Aktivitat nach dem Bade bemerkt. 3) In Leber, Serum wurde die statistisch signifikante Abnahme von Cholinesterase Aktivitat ausser wenigen Ausnahmen nach dem Bade bemerkt. 4) Diese Erscheinungen waren nicht charakteristisch fur Thermalbad oder Radioaktivitat von Thermalwasser, aber der Grad und die Zeit dieser Verapderungeh waren verschiedenartig je nach der Art des Badewassers und des Gewebes, und besonders das Susswasserbad hatte keinen bemerkbaren Einfluss auf Zwischenhir. Cholinesterase von Gehirn gehort zu spezifischer Cholinesterase, die physiologisch grosse Rolle spielt, gegen Leber, Serum, und zwar die Veranderungen in Gehirn nach dem Bade sind viel grosser als in Leber und Serum. Die Zuhahme von Cholinesterase in Gehirn bedeutet den gesteigerten Acetylcholin Stoffwechsel, d.h. erhohte Gehirntatigkeit. Also sind oben genannte Erscheinungen reich an Bedeutng bei Badekur.
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 16
終了ページ 28
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 120002314145
JaLCDOI 10.18926/19612
フルテキストURL Mem_Fac_Eng_OU_33_1_39.pdf
著者 宗澤 良臣| 大崎 紘一| 梶原 康博|
抄録 In this paper, we propose a recognition index to evaluate the complexity of discrimination among parts and units. The parts and units are classified into some groups (the number of groups is shown as n) by one characteristic, such as color, shape, size and so on. The recognition index of each is denoted as log(2) (n+1) by the information quantity formula. The recognition diagram shows the classfication of parts and units into only one part and unit by the structure of a characteristic. Further we propose the line balancing method for assembly line based on the working time and recognition index.
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 39
終了ページ 45
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309042
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 10.18926/19607
タイトル(別表記) EFFECT OF WATER LEVEL OF RIVER ON MINERAL SPRING (Continued)
フルテキストURL 015_011_015.pdf
著者 梅本 春次|
抄録 From February to September 1954, observations were made of the rates of flow and the water temperatures at a spring called "Tanaka-no-Yu", Misasa Hot Springs, Tottori Prefecture. Simultaneously with these observations, the water level of the River Misasa and that of an irrigation stream nearby were also determined. The procedures for the observations were the same as in the previous report. Comparing the results here obtaind wite those previously obtaind, and referring to the conclusions in the previous report, the author has been led to the following conclusions. From the observations in the period from February to September, 1954, as from those in the period from June, 1953 to January, 1954, a positive correlation was found between the rate of flow and the water teperature, the correlarion coefficient being 0.828 (highly significant). The analsis of variance of the obseryed results showed that the rate of flow and the water temperature appear to be affected by the water levels of the River and of the irrigation stream, and also by their interaction. This conclusion supports what was deduced in the previous report. The average water levels of the River and of the irrigation stream, the average rates of flow and the average water temperatures, for the period from June to September in 1953, were compared with those for the period from June to September in 1954. The differences in the average water levels of the River, the average rates of flow and the average water temperatures are significant; while that in average water levels of the stream is not significant. From this it may be concluded that the increase in the rate of flow and the rise of the water temperature were resulted from the upheaval of the water level of the River, which followed the construction of a dam there.
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 11
終了ページ 15
ISSN 0369-7142
言語 日本語
論文のバージョン publisher
NAID 120002309149
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 10.18926/19605
タイトル(別表記) STUDIES ON CHLORIDE AND SULFATE CONTENT OF WELL WATERS AND THE AMOUNTS OF CHLORIDE AND SULFATE FIXED TO SOIL IN THE MINERAL SPRING DISTRICTS (X) MATSUZAKI, TOGO AND ASOZU HOT SPRINGS AND HAMAMURA AND KACHIMI HOT SPRINGS (Continued)
フルテキストURL 015_006_010.pdf
著者 梅本 春次|
抄録 At Matsuzaki, Togo and Asozu Hot Springs and at Hamamura and Kachimi Hot Springs, the amounts of chloride and sulfate fixed to soil were determined with samples which were colleted from various parts of the thermal spring zone and its outside area, more than ten days after rainfall, so as to eliminate its possible effect. The amounts of sulfate were determined by terbidimetry with BaCl(2) solution and those of chloride were determined by mercuric thiocyanate method. In the average amounts of chloride and sulfate, no differences were found between the samples collected from the thermal spring zone and its outside area. The same fact was described in the 5th and 8th reports, but errorneously ascribed to an effect of rainfall. From the present study it has been ascertained that the fact is independent of rainfall.
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 6
終了ページ 10
ISSN 0369-7142
言語 日本語
論文のバージョン publisher
NAID 120002309043
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 10.18926/19603
フルテキストURL Mem_Fac_Eng_OU_31_2_67.pdf
著者 Li Zhenzi| 大崎 紘一| 梶原 康博|
抄録 In this paper, we propose the price determination method using the parameter of the price elasticity that shows the relation between price and demand. Firstly, the state of the price elasticity is examined under the condition that the relation between price and demand are assumed by the inverse proportional function, the linear function and the quadratic function. Secondly, the profit is estimated for each product by break even point analysis. And the price is determined under the condition that the relation between the demand and price is shown by one of three demand-pridce functions above mentioned.
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 67
終了ページ 72
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309056
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
JaLCDOI 10.18926/19601
フルテキストURL Mem_Fac_Eng_OU_31_2_61.pdf
著者 Yamada Mitsuru| 大崎 紘一|
抄録 At present, the two dimensional CAD systems which are used to make drawings go around widely. But in order to use design data at the lower stream of production process, the replacement from the two dimensional CAD systems to the three dimensional CAD systems have started. Accordingly it is dimensional drawings for the three dimensional shapes. And it is also necessary to store them in the three dimensional CAD systems. And in the studying of the machine vision which is often used as "Eyes of robot" , it is being studied the method to recognize the three dimensional objects from the two dimensional image. This is the problem about data exchange, too. Therefore in this report, we propose the method to exchange the plural two dimensional elements of figure from image relations between elements were found from reference of the element coordinates. Next, the three dimensional shapes were reasoned from reference of the knowledge (for corner, etc) prepared beforehand. Then that data were exchanged to the three dimensional CAD data. We report one example about this method.
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 61
終了ページ 65
ISSN 0475-0071
言語 英語
論文のバージョン publisher
NAID 120002309050
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