検索結果 3450 件
| 著者 | 渡辺 和彦| 岩垣 博巳| 淵本 定儀| 椎木 滋雄| 松原 長秀| 赤在 義浩| 渡辺 哲也| 須崎 紀一| 浜田 史洋| 合地 明| 日伝 晶夫| 折田 薫三| |
|---|---|
| 発行日 | 1991-08 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 103巻 |
| 号 | 7-8号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 中井 三代子| |
|---|---|
| 発行日 | 1991-08 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 103巻 |
| 号 | 7-8号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 高田 穣| |
|---|---|
| 発行日 | 1992-08 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 104巻 |
| 号 | 7-8号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 安井 義政| |
|---|---|
| 発行日 | 1992 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 104巻 |
| 号 | 1-2号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 片岡 和彦| 猶本 良夫| 室 雅彦| 小島 一志| 堀木 貞幸| 日伝 晶夫| 田中 紀章| 折田 薫三| |
|---|---|
| 発行日 | 1992 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 104巻 |
| 号 | 1-2号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 高橋 寿保| |
|---|---|
| 発行日 | 1991-08 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 103巻 |
| 号 | 7-8号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/14158 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_39_1_93.pdf |
| 著者 | 五百旗頭 健吾| 豊田 啓孝| 和田 修己| 古賀 隆治| |
| 抄録 | The optical properties of clouds were measured with a polarization Mie lidar during April, 2004 and investigated to categorize the particles detected by the lidar. The cloud layers were categorized into five types according to the depolarization ratios, as follows: (I) constant and small (less than 5%); increasing with height (II) nearly from 0% and (III) from about 50%; (IV) large and varying with the backscattering coefficient; and (V) sharply decreasing. This categorization of clouds enabled us to separate aerosols from clouds in a lidar signal. Comparison of the backscattering coefficients between clouds of types (I) and (II) suggested that the depolarization ratio induced by multiple scattering in dense clouds does not depend on the particle density. Estimation of the particle phase for the five cloud categories was also examined. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2005-01 |
| 巻 | 39巻 |
| 号 | 1号 |
| 開始ページ | 93 |
| 終了ページ | 101 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308479 |
| JaLCDOI | 10.18926/14152 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_39_1_52.pdf |
| 著者 | 金森 克也| 東辻 千枝子| 鶴田 健二| 東辻 浩夫| |
| 抄録 | Thermal behavior of Coulomb clusters in a three dimensional confining potential is investigated by molecular dynamics simulations for system sizes of 1,000 to 20,288 ions. The specific heat of the system of shell-structured 20,000 ions is peaked almost at the same temperature as the system of bcc-structured 20,288 ions with much sharper structure for the latter. The diffusion coefficient and the peak to valley ratio of the two-dimensional pair distribution function on the outermost shell are obtained both as a function of temperature. The rotational movement of each shell in the system of 104 ions is observed. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2005-01 |
| 巻 | 39巻 |
| 号 | 1号 |
| 開始ページ | 52 |
| 終了ページ | 55 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308445 |
| JaLCDOI | 10.18926/14150 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_39_1_46.pdf |
| 著者 | 門野 恵典| 東辻 千枝子| 鶴田 健二| 東辻 浩夫| |
| 抄録 | We present a real-space, polynomial-expansion approach to electron dynamics in nanostructured semiconductors. The Chebyshev expansion method is employed for efficient calculation of timeevolution of single-electron wave function. Details of the formulation are described. The method is applied to the electron transport in nanostructured semiconductors such as Si nanowires. The mean-square displacement and diffusivity of electron in Si chains are obtained as functions of length of the chains. The results show clearly ballistic behavior of electron in the pure Si chain. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2005-01 |
| 巻 | 39巻 |
| 号 | 1号 |
| 開始ページ | 46 |
| 終了ページ | 51 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308231 |
| JaLCDOI | 10.18926/14148 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_39_1_28.pdf |
| 著者 | 石丸 和史| 小西 正躬| 今井 純| 西 竜志| |
| 抄録 | In reactor furnace, due to high temperature and high pressure, data can be measured only near the furnace wall. In this paper, the way to estimate temperature distribution in a reactor furnace using measured data near the furnace walls and to control temperature distribution to the desired temperature distribution was studied. In the estimation, SQP method is employed using measured data near the furnace walls. As the result, the whole temperature distribution in a furnace could be obtained from such limited data. Furthermore, to control the temperature distribution in a reactor furnace, gas flow from multiple tuyeres and supplying material for controlling temperature distribution in a reactor furnace were determined by the SQP method. It was shown that temperature distribution in a furnace was regulated to achieve various desired distribution. Thus, it was verified that complicated temperature distribution in a reactor furnace could be controlled by combining furnace simulation and SQP method. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2005-01 |
| 巻 | 39巻 |
| 号 | 1号 |
| 開始ページ | 28 |
| 終了ページ | 39 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308270 |
| JaLCDOI | 10.18926/14146 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_39_1_21.pdf |
| 著者 | 鳥越 崇史| 小西 正躬| 今井 純| 西 竜志| |
| 抄録 | In this paper, neuro based intelligent diagnosis methods for electro-mechanical control system are proposed. A self organizing map neural network (SOM) is used to classify measured data of the target system as a qualitative diagnostic method. Besides of the above procedure, it is expected to attain more efficient maintenance by a quantitative estimation of failure. For the purpose, new method is proposed using a hierarchical neural network (HNN). In the method, classified results by SOM are processed for the quantitative diagnosis. Hierarchical neural network can identify inner structure of the relations between failure causes and its results that enables a quantitative diagnosis. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2005-01 |
| 巻 | 39巻 |
| 号 | 1号 |
| 開始ページ | 21 |
| 終了ページ | 27 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308342 |
| JaLCDOI | 10.18926/14135 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_39_1_7.pdf |
| 著者 | 王 暁群| 阿部 武治| 多田 直哉| 清水 一郎| |
| 抄録 | Roughening on free surface of polycrystalline metal during plastic deformation is closely related to the inhomogeneous deformation in the respective grain at the surface. Uniaxial tensile tests are carried out on annealed pure aluminum sheet specimens with various averaged grain sizes. The roughening is measured by a 3-dimensional stylus instrument to examine the roughness change in both sides of specimen surfaces at each strain. The irregularities on one side are reversed on the backside, when the averaged grain size is as large as the thickness of the specimen. Discussions are made on the relation between the surface shapes of both sides adopting the cross correlation factor. The strains of respective grains are also measured from the grain boundary shape before and after plastic deformation. There are some deviations in the strains of the grains and their standard deviation increases with the applied strain. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2005-01 |
| 巻 | 39巻 |
| 号 | 1号 |
| 開始ページ | 7 |
| 終了ページ | 15 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308149 |
| JaLCDOI | 10.18926/14126 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_40_1_84.pdf |
| 著者 | Nogami, Yasuyuki| Morikawa, Yoshitaka| |
| 抄録 | This paper particularly deals with elliptic curves in the form of E(x, y) = y(2) − x(3) −b = 0, b ∈ F(* q) , where 3 divides q−1. In this paper, we refer to the well-known twist technique as x-twist and propose y-twist. By combining x-twist and y-twist, we can consider six elliptic curves and this paper proposes a method to obtain the orders of these six curves by counting only one order among the six curves. |
| キーワード | elliptic curve twist third power residue/non-residue |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2006-01 |
| 巻 | 40巻 |
| 号 | 1号 |
| 開始ページ | 83 |
| 終了ページ | 94 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308548 |
| JaLCDOI | 10.18926/14125 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_40_1_78.pdf |
| 著者 | 船曳 信生| 磯貝 愛| 東野 輝夫| Oda Masashi| |
| 抄録 | A variety of studies on face components such as eyes, lips, noses, and teeth have been proceeding in medicine, psychology, biometrics authentication, and other areas. In this paper, we present an algorithm of extracting eye contours from a face image using the deformable template matching method. Our template for an eye contour is composed of three quadratic functions for the perimeter and one circle for the pupil. In our algorithm, a digital color face image is rst converted to a binary image of representing eyes, after the region around eyes is identied on the face image by using hues and values of the color image. Then, parameters in the template are optimized by a local search method with a tabu period and a hill-climbing, so as to t the template to the eye contour in the binary image. The accuracy of our algorithm is evaluated through sample face images of students. In addition, the application of our proposal to eye shape indices is investigated in a face image database "HOIP", where recognizable dierence exists in index distributions between males and females. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2006-01 |
| 巻 | 40巻 |
| 号 | 1号 |
| 開始ページ | 78 |
| 終了ページ | 82 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308500 |
| JaLCDOI | 10.18926/14122 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_40_1_44.pdf |
| 著者 | 菅谷 保之| 金谷 健一| 金沢 靖| |
| 抄録 | Dense point matches are generated over two images by rectifying the two images to align epipolar lines horizontally, and horizontally sliding a template. To overcome inherent limitations of 2-D search, we incorporate the “naturalness of the 3-D shape” implied by the resulting matches. After stating our rectification procedure, we introduce our multi-scale template matching scheme and our outlier removal technique using tentatively reconstructed 3-D shapes. Doing real image experiments, we discuss the performance of our method and remaining issues. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2006-01 |
| 巻 | 40巻 |
| 号 | 1号 |
| 開始ページ | 44 |
| 終了ページ | 52 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308593 |
| JaLCDOI | 10.18926/14121 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_40_1_40.pdf |
| 著者 | 三宅 隆| 東辻 千枝子| 鶴田 健二| 東辻 浩夫| |
| 抄録 | The electron system of arbitrary degeneracy can be mapped onto a classical system where electrons of the same spin are assigned an additional interaction and the effect of degeneracy is taken into account through an imaginative temperature. We apply this method to electrons in quantum dots modeled as two-dimensional electron liquid confined in a finite domain by a harmonic potential. We analyze distribution functions by molecular dynamics instead of solving integral equations which are not so useful in the case without translational invariance. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2006-01 |
| 巻 | 40巻 |
| 号 | 1号 |
| 開始ページ | 40 |
| 終了ページ | 43 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308268 |
| JaLCDOI | 10.18926/14120 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_40_1_36.pdf |
| 著者 | 内田 厚| 東辻 千枝子| 鶴田 健二| 東辻 浩夫| |
| 抄録 | We present a Stochastic-Difference-Equation (SDE) approach to long time-scale molecular dynamics (MD) simulations, which are required for nanosecond-scale phenomena. In this method, the MD trajectory in a fixed time period is obtained as a stationary solution of an action functional based on an error accumulation of the equation of motion along the path, thus reducing the problem to a boundary-value problem, instead of an initial-value problem in the ordinary MD method. We apply the method to formation processes of Cu thin film via nanocluster deposition onto a substrate. The applicability of the SDE algorithm to the problem and the effects of the choice of SDE parameters on the optimization processes of configuration pathway are examined. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2006-01 |
| 巻 | 40巻 |
| 号 | 1号 |
| 開始ページ | 36 |
| 終了ページ | 39 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308517 |
| JaLCDOI | 10.18926/14119 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_40_1_31.pdf |
| 著者 | 小川 貴史| 東辻 千枝子| 鶴田 健二| 東辻 浩夫| |
| 抄録 | We analyze the melting of spherical Yukawa clusters by Monte Carlo simulations. Spherical clusters are expected to be found in dusty plasmas in an isotropic environment such as microgravity and serve as a model for classical clusters. We obtain the specific heat through fluctuations of the potential energy and identify its peak as the transition temperature. Melting temperatures are compared with those of bulk Yukawa systems and it is confirmed that the melting temperature increases and approaches the bulk value with the increase of the system size. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2006-01 |
| 巻 | 40巻 |
| 号 | 1号 |
| 開始ページ | 31 |
| 終了ページ | 35 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308329 |
| JaLCDOI | 10.18926/14099 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_40_1_23.pdf |
| 著者 | 菊池 純二| 小西 正躬| 西 竜志| 今井 純| |
| 抄録 | In steel works, iron ores are stored in ore yard and sent to various plants of down stream accoding to transfer requests. To attain stable operation, it is neccesary to keep a certain allowable stock level in ore tanks of all plants. To this purpose, ore transfer routing method has been developed based on decentralized agent method. In case of disaster such as a big earthquake or a big fire, damages in the facilities of industrial complex may be unavoidable. In this paper, decentralized optimization method is tested to cope with such emergencies. Decentralized agents corresponding to kind of ore make their own transfer route plan exchanging information with others. As the application of the proposed method, transfer scheduling in ore yard in steel works are made in case of destruction of transfer facilities. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2006-01 |
| 巻 | 40巻 |
| 号 | 1号 |
| 開始ページ | 23 |
| 終了ページ | 30 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308160 |
| JaLCDOI | 10.18926/14098 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_40_1_16.pdf |
| 著者 | 阿部 快洋| 小西 正躬| 西 竜志| 今井 純| |
| 抄録 | In this study, auto tuning of PID control gains in hot strip looper controller is made based on RNN model. Neuro emulator is employed to model the characteristics of looper dynamics. Combining neuro emulator and RNN model, auto tuning system of PID control gains is constructed. As the inputs to RNN, plural evaluation functions which reflect individual preference of human experts. Further, Self learning mechamism is embeded to RNN model which enables adaptation to the change in rolling chracteristics. Through numerical experiments, the effect of the proposed method is ascertained. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2006-01 |
| 巻 | 40巻 |
| 号 | 1号 |
| 開始ページ | 16 |
| 終了ページ | 22 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002308615 |