検索結果 - 岡山大学学術成果リポジトリ

The Recognition Methods Combined Image Processing With 2D or 3D CAD Information (CAD/IP)

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
巻	33巻
号	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

An Interactive Fuzzy Satisficing Method for Multiobjective Stochastic Integer Programming Problems through Simple Recourse Model

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
巻	2009巻
号	1号
資料タイプ	会議発表論文

A Study on Robot System to Hand Surgical Intrument to a Surgeon in a Surgery (1st Report, Development of Surgical Instrument Recognition System)

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
巻	33巻
号	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

An Interactive Fuzzy Satisficing Method for Fuzzy Random Multiobjective 0-1 Programming Problems through Probability Maximization Using Possibility

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
巻	2009巻
号	1号
資料タイプ	会議発表論文

Rigid-Plastic Deformation of Inhomogeneous Material with Elliptic Inclusions Sliding along Boundary

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
巻	33巻
号	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

Price Determination Method Based on Price Elasticity

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
巻	31巻
号	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

A Method of Shape Recognition Using Geometry Information

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
巻	31巻
号	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

Evaluation of Drowsiness by HRV Measures - Proposal of prediction method of low arousal state -

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
巻	2009巻
号	1号
資料タイプ	会議発表論文

Plant Layout Method Considering Material Handling Cost and Maintainability

JaLCDOI	10.18926/19599
フルテキストURL	Mem_Fac_Eng_OU_31_2_53.pdf
著者	Fujihara Yutaka\| 大崎紘一\|
抄録	This paper presents a method using simulated annealing(SA) and genetic algorithm(GA) to solve the plant layout problem in which the layout is evaluated by material handling cost and maintainability. In the former study about facility layout problem, it was either the minimization of the objeective function consisting of transport cost or the maximization of the objective function consisting of closeness rating. In this paper, both transport cost and maintainability were included in the objective function to be minimized. The plant layout problem, this paper proposes the heuristic procedures to obtain a suboptimal layout solution by combining SA with GA. From the simulation by computer, it concluded that the method which SA is combined with GA is more efficient than the method which utilizes SA and GA independently.
出版物タイトル	Memoirs of the Faculty of Engineering, Okayama University
発行日	1997-03-28
巻	31巻
号	2号
開始ページ	53
終了ページ	60
ISSN	0475-0071
言語	英語
論文のバージョン	publisher
NAID	120002309131

Estimation of Loosening of Knee Joint Prosthesis

JaLCDOI	10.18926/19592
フルテキストURL	Mem_Fac_Eng_OU_31_2_29.pdf
著者	岡久雄\| 大島正和\|
抄録	Knee replacement arthroplasty is indicated for the patient with advanced knee pain, knee deformation, and knee functional disorder. The aim of this study was to estimate loosening after a knee replacement arthroplasty. Loosening is measured by a frequency response function, and mobility by random vibration. The modal parameters for the knee joint are obtained by applying a modal analysis to the frequency response function. The values decrease as the knee joint prosthesis loosened. These parameters serve as an index for the condition between a thighbone and the prosthesis. The various indexes will greatly clarify the stage of advance in the loosening of knee-joint prostheses.
出版物タイトル	Memoirs of the Faculty of Engineering, Okayama University
発行日	1997-03-28
巻	31巻
号	2号
開始ページ	29
終了ページ	37
ISSN	0475-0071
言語	英語
論文のバージョン	publisher
NAID	120002309172

Internal Structure and Phase Transformation of Ti-V Alloy Fine Particles

JaLCDOI	10.18926/19589
フルテキストURL	Mem_Fac_Eng_OU_31_2_11.pdf
著者	Ishii Kouta\| 竹元嘉利\| 飛田守孝\|
抄録	Fine particles of Ti-V alloy were prepared by means of arc method and were investigated on internal structure and phase transformation using HR-TEM and EDS. Martensite phase was observed in a particle containing comparatively low concentration of V, and ω phase was also found to exist in a nearly 15% V particle. The structure of the ω phase in the fine particle is remarkably expanded in comparison with the bulk sample, and the ω phase is unstable, so that it has disappeared in a few seconds during TEM observation.
出版物タイトル	Memoirs of the Faculty of Engineering, Okayama University
発行日	1997-03-28
巻	31巻
号	2号
開始ページ	11
終了ページ	20
ISSN	0475-0071
言語	英語
論文のバージョン	publisher
NAID	120002309004

Microstructure of Oxide Layers Formed on Magnesium Surface at Elevated Temperature

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
巻	31巻
号	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

Study on Water Quality of Surface Runoff and Groundwater Runoff on the Basis of Separation by a Numerical Filter

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
巻	29巻
号	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

Scribing of Ceramie Circuit Board with Q-Switched Nd：YAG Laser

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
巻	29巻
号	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

Rule Induction by EDA with Instance-Subpopulations

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
巻	2009巻
号	1号
資料タイプ	会議発表論文

Clearance法を用いた腎機能の研究第2編実験的肝障碍時における腎機能について

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
巻	68巻
号	8号
資料タイプ	学術雑誌論文

細菌細胞形態に関する超薄切片法応用による電子顕微鏡的研究第1編正常細菌の細胞形態に就いて

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
巻	71巻
号	5-2号
資料タイプ	学術雑誌論文

岡山県に発生せる流行性肝炎病原体の研究特に孵化鶏卵に依り分離せるウイルスに就て第2編分離ウイルスの性状に就て

著者	俵寿太郎\|
発行日	1959-04-25
出版物タイトル	岡山医学会雑誌
巻	71巻
号	5-2号
資料タイプ	学術雑誌論文

所謂青年性家族性震顫麻痺の一家系について

著者	上永広済\|
発行日	1956-08-31
出版物タイトル	岡山医学会雑誌
巻	68巻
号	8号
資料タイプ	学術雑誌論文

広義発疹チフスの免疫に関する研究第Ⅱ編 R.prowazekiとR.mooseriの特性に関する研究

著者	山口英\|
発行日	1956-07-31
出版物タイトル	岡山医学会雑誌
巻	68巻
号	7号
資料タイプ	学術雑誌論文