検索結果 1297 件
| 著者 | 荒木 久美子| |
|---|---|
| 発行日 | 1984-04-30 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 96巻 |
| 号 | 5-6号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 荒木 久美子| 樋口 譲二| 神崎 晋| 片山 雅博| 樋本 裕介| 内田 良幸| 小倉 威郎| 藤田 千春| 木本 浩| |
|---|---|
| 発行日 | 1984-04-30 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 96巻 |
| 号 | 3-4号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/15800 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_19_2_49.pdf |
| 著者 | Yamamoto Kyoji| |
| 抄録 | A Galerkin method is applied to a singular integral equation of fredholm type originated in the problem of the rarefied gas flow over a plane wall. The solution is expanded in a series of the Abramowitz function. The numerical calculations were carried out up to ten-terms expansions. The results show a good convergence of the series.The comparison is made with the previous work obtained by the moment method. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1985-02-25 |
| 巻 | 19巻 |
| 号 | 2号 |
| 開始ページ | 49 |
| 終了ページ | 61 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307308 |
| JaLCDOI | 10.18926/15793 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_16_1_47.pdf |
| 著者 | Mori Chuji| Hattori Susumu| Tanabe Hiroshi| |
| 抄録 | A practical example of digital rectification of tilted photographs using a drum scanning micro densitometer and general purpose computers is depicted. The present research covers rectification of projective distorsions, occuring when the camera axis is not truly vertical, and affine distorsions due to curvature of a drum of a scanner. For this purpose, fundamental mathematical expressions were derived. And some pixel interpolation methods necessary for image reconstruction were compared experimentally. The examples revealed, however, that the film was deformed so complexly that they could not be corrected sufficiently only by affine transformation. Accuracy of rectification was checked by use of stereo aerial photographs in terms of residual y-parallaxes. The result showed residual y-parallaxes of ± 1 pixel (± 50 μm) and sometimes ± 2 pixels were observed. They seem to be caused mainly by film deformations which have not been eliminated, and their amount seems to exceed the photogrammetric tolerance. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1982-03-01 |
| 巻 | 16巻 |
| 号 | 1号 |
| 開始ページ | 47 |
| 終了ページ | 64 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307893 |
| JaLCDOI | 10.18926/15790 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_16_1_21.pdf |
| 著者 | Koga, Ryuji| Kosaka, Megumi| Sano, Hiroya| |
| 抄録 | In a sensitive spectrometry with lead-salt diode lasers, etalon-fringe phenomena often intervene in the measured absorption spectrum. Derivative methods are employed for the purpose of high resolution where the pertaining wavelength is modulated. This paper presents results of mathematical examination on a possible improvement of immunity from the etalon-fringes by choosing the profile of the wavelength modulation. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1982-03-01 |
| 巻 | 16巻 |
| 号 | 1号 |
| 開始ページ | 21 |
| 終了ページ | 30 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307691 |
| JaLCDOI | 10.18926/15742 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_14_1_61.pdf |
| 著者 | Kono Iichiro| Nishigaki Makoto| |
| 抄録 | The purposes of this paper are primarily to research on behavior of groundwater flow in saturated and unsaturated zone and to develop the most effective methods for solving groundwater flow problems related to civil engineering practice. The mathematical model provides a finite element solution to two- or threedimensional problems involving transient flow in the saturated and unsaturated domains of nonhomogeneous, anisotropic porous media. Before progressing into the various levels of applications the input data and boundary conditions are discussed and evaluated. To demonstrate the flexibility of the finite element approach and its capability in treating complex situations which are often encountered in the field, the groundwater flow through sand bank at flood water levels and the flow through aquifer due to an excavation were analyzed. As the results there were good qualitative agreements between the numerical results and the informations received. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1979-12-01 |
| 巻 | 14巻 |
| 号 | 1号 |
| 開始ページ | 61 |
| 終了ページ | 94 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307580 |
| JaLCDOI | 10.18926/15732 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_13_249.pdf |
| 著者 | Yamamoto Kyoji| |
| 抄録 | The asymptotic theory of Rayleigh shear flow for large values of time is developed on the basis of the linearized Boltzmann-Krook equation. Asymptotic equations for mean velocity outside the Knudsen layer are obtained by employing the Hilbert expansion. Slip boundary conditions are derived from the analysis of the Knudsen layer adjacent to the wall. A solution of the asymptotic equation is obtained under the slip boundary condition and zero initial condition. Discussions are also made of the flow induced by a slowly oscillating flat plate. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1979-03-05 |
| 巻 | 13巻 |
| 開始ページ | 249 |
| 終了ページ | 258 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307963 |
| JaLCDOI | 10.18926/15716 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_12_29.pdf |
| 著者 | Yamamoto Tatsuma| Yamamoto Yoshitake| Nishida Hideki| Yasuhara Kiyotaka| |
| 抄録 | The distributed circuit properties based on pores in the etched aluminum oxide film of the electrolytic capacitor have been analysed by the mathematical equation. This paper proposes the selection and the determining method of the parameters appearing in the analysis. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1978-02-25 |
| 巻 | 12巻 |
| 開始ページ | 29 |
| 終了ページ | 36 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307968 |
| JaLCDOI | 10.18926/15634 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_6_21.pdf |
| 著者 | Wada Tsutomu| Shimizu Akira| |
| 抄録 | In this report, the effects of splitter position on the attached jet were experimentally investigated for the purpose of discussing the applicability of a usual mathematical model without splitter. As results, the followings were confirmed, (l) For the splitter distance shorter than the critical distance, the pressure in the bubble lowers and the jet radius of curvature shortens. (2) At the ratio L(s)/D=4~5, the switching control flow rate becomes maximum. And bordering this value, the effects of splitter position on the switching are quite conversely. For the splitter distance longer than the above value, the switching control flow rate decreases, as increasing the distance. (3) For the splitter distance of 1.5~2 times critical distance, the switching is almost never affected by the splitter. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1971-09-01 |
| 巻 | 6巻 |
| 号 | 1号 |
| 開始ページ | 21 |
| 終了ページ | 25 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307823 |
| JaLCDOI | 10.18926/15596 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_3_1.pdf |
| 著者 | Honda Kazuo| Konaga Tetsuro| |
| 抄録 | Broadly speaking, there are three kinds of approaches to investigate the deformation and fracture of materials, that is, the microscopic (metallurgical), macroscopic(mechanical) and theoretical (mathematical) researches. It is necessary, however, to bridge the gap which persists among of them. Many investigations on the form of plastically deformed zone at a crack tip, the distribution of plastic strain in plastic zone and fracture criterion have been made for the purpose to clarify the mechanism on initiation and propagation of cracks. In this paper, the authors report the studies, from the standpoint of microscopic views, on the crystal deformation at the tip of crac's in notched specimen during fatigue process. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1968-09-01 |
| 巻 | 3巻 |
| 号 | 1号 |
| 開始ページ | 1 |
| 終了ページ | 11 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307236 |
| JaLCDOI | 10.18926/15556 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_116.pdf |
| 著者 | Takamatsu Takeichiro| Sayama Hayatoshi| |
| 抄録 | The identification or model building of system is the important problem for the dynamic optimization of chemical plant and it is desired that this mathematical model can be determined as quickly and as exactly as possible from experimental or operating data. Recently the identification of linear system has been studied, but there have been few papers on nonlinear systems. Especially, no approaches can be found to identify effectively a chemical reaction process which is a nonlinear and nonisothermal system. Except for the case in which the linearized model is enough to represent the approximate dynamic behaviour of the plant, system should be directly represented by nonlinear mathematical model in general. In this paper, the gradient method was applied to identify a nonlinear system. In this method, the parameters to be chosen optimally are regarded as timeinvariant control variables and they are numerically determined by using a high speed digital computer (KDC-I). As a numerical example, we choose a continuous stirred tank reactor with the first order exothermic reaction and show the procedure to determine the three parameters, that is, the order of reaction, the values of activation energy and frequency factor. It should be emphasized that this approach makes it possible to construct the mathematical model of nonisothermal chemical reaction processes only from input and output data. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 116 |
| 終了ページ | 119 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307194 |
| JaLCDOI | 10.18926/15542 |
|---|---|
| フルテキストURL | Mem_Sch_Eng_OU_1_37.pdf |
| 著者 | Takahashi Katsuaki| Tanioka Mamoru| Yoshio Tetsuo| |
| 抄録 | Studies were carried out in order to know in some detail the transport phenomena through the interface in the viscous liquid moving in laminar flow. Experiments were carried out using ca. 88% glycerin solution, one added with an acid, and the other with alkali together with a small amount of phenolphthalein. Acidic glycerin solution was supplied to a long transparent cuvette of rectangular cross section through which the liquid was made to move slowly enough to establish the laminar flow, thin cords of coloured basic solution were introduced in the direction normal to the axis of flow at regular time intervals. The so obtained patterns of bending cords shortening in regular succession were photographed also at regular time intervals. The authors attribute the origin of the changing patterns of the cords to the velocity gradient existing in the acidic solution which accelerates the diffusion by increasing the concentration gradient near the cords as well as the increase of the interfacial area, and also the decrease of the thickness of the cords. Based on these idea a mathematical analysis was carried out and was obtained an equation which gives the change of the concentration distribution of two dimensional cords. Fair agreement was obtained between the results of mathematical analysis and those of experiments. Furthermore, the influence of the thickness of the cords, and that of the velocity gradient as well as of the diffusion coefficient on the concentration at the center of the cords were discussed. |
| 出版物タイトル | Memoirs of the School of Engineering, Okayama University |
| 発行日 | 1966-03-31 |
| 巻 | 1巻 |
| 号 | 1号 |
| 開始ページ | 37 |
| 終了ページ | 43 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307624 |
| JaLCDOI | 10.18926/15517 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_25_2_123.pdf |
| 著者 | Taniguchi, Takeo| Ohta, Chikashi| |
| 抄録 | The aim of this investigation is the proposal of 3D mesh generation method based on the Delaunay triangulation. The method is valid for the finite element modelling of any convex 3D domain into tetrahedra with optimum geometrical configuration. This paper includes the mathematical background of the mesh generation method, its detail, proposal of some efficient tools for faster and more rigorous computations, and some examples of the mesh generation. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1991-03-28 |
| 巻 | 25巻 |
| 号 | 2号 |
| 開始ページ | 123 |
| 終了ページ | 133 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307904 |
| JaLCDOI | 10.18926/15477 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_23_2_33.pdf |
| 著者 | Ishihara Yuji| 山本 恭二| |
| 抄録 | This paper deals with the low Mach numbers flow of a rarefied vapour past a liquid sphere accompanied with condensation and evaporation at its surface. The linearized Bhatnager-Gross-Krook(B-G-K} equation is used for the analysis, and from it the integral equations of the density, temperature and flow velocities are derived. These integral equations are solved numerically over a wide range of the Knudsen number covering from the slip flow to the nearly free molecular flow. The drag on the sphere is also calculated and is compared with that of previous work. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1989-03-30 |
| 巻 | 23巻 |
| 号 | 2号 |
| 開始ページ | 33 |
| 終了ページ | 44 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307401 |
| JaLCDOI | 10.18926/15465 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_23_1_49.pdf |
| 著者 | 岡 久雄| 山本 辰馬| Isayama Yoshiharu| |
| 抄録 | In the field of dental study it is most fundamental and necessary to estimate the condition of periodontium. In order to examine a mechanical characteristics of periodontium, the theoretical displacement response to periodontal mechanical model (three elements model) are strictly solved in case of some pulse excitations. Impact excitations (rectangular, triangular and half-cycle sine pulse) are given in physical and mathematical definitions and complete solutions to the impact excitations are provided. The triangular pulse excitation which is obtained by means of a fracture of pencil-lead is most suitable. The mechanical parameters of periodontium are given using this input excitation. This is experimentally confirmed by artificial tooth model. The obtained mechanical characteristic of the periodontal tissues can be applied to clinical diagnosis. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1988-11-22 |
| 巻 | 23巻 |
| 号 | 1号 |
| 開始ページ | 49 |
| 終了ページ | 60 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307622 |
| JaLCDOI | 10.18926/15430 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_29_2_89.pdf |
| 著者 | Sekoguchi, Kenji| Miyazaki, Shigeji| |
| 抄録 | The present paper deals with a new perfomance measure, the actual mean flow time, defined as a mean of the elapsed time of each job counted from the start time on a schedule to the corresponding due date. For the one machine backward scheduling model with a common due date and independent setup times, LPT schedule is shown as the optimal solution for the proposed measure. An optimal algorithm is presented for the case with dependent setup times on the basis of the algorithm by Arcelus and Chandra for a n / 1 / F forward scheduling problem. The proposed algorithm is coded in C-language and a computational experience is reported through a 16-bit computer. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1995-03-27 |
| 巻 | 29巻 |
| 号 | 2号 |
| 開始ページ | 89 |
| 終了ページ | 94 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307729 |
| JaLCDOI | 10.18926/15382 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_35_207.pdf |
| 著者 | 中西 透| Fujiwara Toru| |
| 抄録 | In the group signature scheme with a trusted party, a verifier can determine whether or not a signature is made by a member of the group, but cannot identify the member who signed the signature. In case of dispute later on, the signer can be identified by the trusted party. However, for efficient group signature schemes proposed so far, removing a member from the group can be not efficiently performed. In this paper, a group signature scheme with an easy membership canceling is proposed. By sending a request to use a resource together with the group signature on it to the manager of the resource, the manager can control anonymous accesses to the resource. In such an application, the proposed group signature scheme is suitable for canceling of the access privilege. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2001-03-27 |
| 巻 | 35巻 |
| 号 | 1-2号 |
| 開始ページ | 207 |
| 終了ページ | 212 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307232 |
| JaLCDOI | 10.18926/15365 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_30_1_1.pdf |
| 著者 | Dong Liu| 梶原 康博| 大崎 紘一| 宗澤 良臣| |
| 抄録 | A method for standardizing parts is proposed. This method aims to reduce the sort of parts for cutting the manufacturing cost and for improving specifications of parts. Two linear mathematical programming models are proposed for standardizing the parts. One model aims at cutting cost half without causing any degradation of mechanical specifications of parts. The other model aims at doubling mechanical specifications of parts below the acceptable manufacturing cost. These models are formulated in 0-1 integer programming forms. The integer programming model shows which part is common to other parts. An example is shown to demonstrate the use of the developed method. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1995-12-28 |
| 巻 | 30巻 |
| 号 | 1号 |
| 開始ページ | 1 |
| 終了ページ | 7 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307491 |
| JaLCDOI | 10.18926/15361 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_35_77.pdf |
| 著者 | Kishimoto Tokunari| 東辻 千枝子| 鶴田 健二| 東辻 浩夫| |
| 抄録 | In order to perform the large-scale molecular dynamics simulation of the Yukawa system, a mathematical expression for molecular dynamics using the fast multipole method is described. The model simulations are also performed to test the performance of our implementation of the FMM. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2001-03-27 |
| 巻 | 35巻 |
| 号 | 1-2号 |
| 開始ページ | 77 |
| 終了ページ | 95 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002307940 |
| JaLCDOI | 10.18926/15253 |
|---|---|
| タイトル（別表記） | A study on the correlation between the results of entrance examination and the academic record of the students in the department of laboratory technology |
| フルテキストURL | 009_2_091_104.pdf |
| 著者 | 岡本 基| 崎山 順子| 赤塚 和也| |
| 抄録 | 1987年4月から1995年4月の9年間に衛生技術学科へ入学した361名を対象に,高校評点,入学試験(学力試験)成績と,入学後の学業成績,退学,留年,臨床検査技師国家試験との関係を調べた｡ 1)入学者総数は361名で,このうち留年者が39名(10,8%),退学者が18名(5%)であった｡退学者の中には,実質入学辞退者が6名,4年制大学へ進路を変更した者が4名いたが,こうした退学者は1992年度までの入学者に多かった｡ 2)入学者全体では,予定卒業者,留年者,退学者の間で高校評点,入学試験成績には差がなかったが,入学年度ごとにみると,1987,1988年度は留年者が予定卒業者に比べて入学試験の総得点が高い傾向があり,逆に1991年,1993年度は予定卒業者に比べて有意に低かった｡ 3)高校評点は,データが入手できた1991年度以降一貫して留年者の評点が予定卒業者より低く, とくに1991年,1993年度は留年者の評点が有意に低かった｡ 4)留年者も含めて,一般教育科目の成績と専門科目の成績との間に有意を正の相関がみられた｡ 5)高校評点と入学試験成績との間には軽度の相関しかみられなかったが,高校評点および入学試験総合点は入学後の一般教育科目,専門科目の成績と高い正の相関を示した｡ 6)しかし,個々の入学試験科目の得点は,入学後の成績と相関しないか,軽度の相関しかみられなかった｡ 7)国家試験不合格者は,高校評点,入学試験総合点,一般科目平均点,専門科目平均点のいずれも合格者に比べて得点が低かったが,有意差はなかった｡以上の結果から,短期大学部開設当初は留年者,退学者の中に予定卒業者より学力のある学生がいたが,年を追うごとに入学者の学力が均質化し,学力が不十分なために留年する学生が多くなってきていると言える。一般教育科目の成績と専門科目の成績が強い正の相関を示すことは,1年次の成績がそのまま2,3年次の成績に反映されることを示しており,入学当初の動機付けと勉学意欲の喚起が重要なことを示している｡高校評点や学力試験の成績は入学後の成績とよく相関しており,学生選抜の有効な指標であると考えられたが,各入試科目との相関は乏しかったことから,個々の試験科目の問題内容については改善すべき課題があると思われた｡ |
| キーワード | 高校評点 (school record in high school) 入学試験成績 (result of entrance examination) 入学後の学業成績 (academic record) 留年 (failure in promotion) 退学 (withdrawal from school) |
| 出版物タイトル | 岡山大学医療技術短期大学部紀要 |
| 発行日 | 1999-02-26 |
| 巻 | 9巻 |
| 号 | 2号 |
| 開始ページ | 91 |
| 終了ページ | 104 |
| ISSN | 0917-4494 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002307344 |