result 504 件
| Author | Taniguchi, Takashi| |
|---|---|
| Published Date | 1984-04-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume96 |
| Issue | issue5-6 |
| Content Type | Journal Article |
| Author | Tanaka, Yukiko| |
|---|---|
| Published Date | 1984-04-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume96 |
| Issue | issue5-6 |
| Content Type | Journal Article |
| Author | Fujii, Akinobu| |
|---|---|
| Published Date | 1984-04-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume96 |
| Issue | issue5-6 |
| Content Type | Journal Article |
| Author | Imataki, Kensuke| |
|---|---|
| Published Date | 1986-12-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume98 |
| Issue | issue11-12 |
| Content Type | Journal Article |
| Author | Ueno, Mitsuo| |
|---|---|
| Published Date | 1983-08-31 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume95 |
| Issue | issue7-8 |
| Content Type | Journal Article |
| Author | Nishihara, Koichi| |
|---|---|
| Published Date | 1983-08-31 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume95 |
| Issue | issue7-8 |
| Content Type | Journal Article |
| Author | Miyahara, Kiyoshi| |
|---|---|
| Published Date | 1983-04-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume95 |
| Issue | issue3-4 |
| Content Type | Journal Article |
| Author | Haruta, Yuro| |
|---|---|
| Published Date | 1984-02-28 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume96 |
| Issue | issue1-2 |
| Content Type | Journal Article |
| Author | Hyodo, Ichinosuke| |
|---|---|
| Published Date | 1985-06-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume97 |
| Issue | issue5-6 |
| Content Type | Journal Article |
| Author | Ueoka, Hiroshi| |
|---|---|
| Published Date | 1985-04-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume97 |
| Issue | issue3-4 |
| Content Type | Journal Article |
| Author | Tanabe, Masatada| |
|---|---|
| Published Date | 1988 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume100 |
| Issue | issue11-12 |
| Content Type | Journal Article |
| Author | Matsuda, Rikiya| |
|---|---|
| Published Date | 1988 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume100 |
| Issue | issue5-6 |
| Content Type | Journal Article |
| Author | Matsueda, Hideki| |
|---|---|
| Published Date | 1987-04-30 |
| Publication Title | 岡山医学会雑誌 |
| Volume | volume99 |
| Issue | issue3-4 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/15619 |
|---|---|
| FullText URL | Mem_Sch_Eng_OU_3_127.pdf |
| Author | Nakata Takayoshi| Ishihara Yoshiyuki| |
| Abstract | In order to measure the iron loss of the silicon steel plates, we produced a vectormeter using a thyristor and a gate turn off thyristor by way of experiment. This equipment is very useful, because the frequency range is improved very much in comparison with the vectormeter which is composed of the mechanical rectifying system using a synchronous motor, namely, is enlarged from 60Hz to 1kHz, |
| Publication Title | Memoirs of the School of Engineering, Okayama University |
| Published Date | 1968-09-01 |
| Volume | volume3 |
| Issue | issue1 |
| Start Page | 127 |
| End Page | 130 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307274 |
| JaLCDOI | 10.18926/15549 |
|---|---|
| FullText URL | Mem_Sch_Eng_OU_1_70.pdf |
| Author | Nakata Takayoshi| Ishihara Yoshiyuki| Moriyasu Tadataka| |
| Abstract | In this paper, we describe the way to compute circuit constants of the impulse voltage generator by means of the digital computer, when an impulse voltage waveform is given. The definition of waveform is to be revised, and this definition is adopted to our computation. From the results, we can see the influence of revising definition upon circuit constants. We also devised graphs, from which we can easily determine the L-C-R circuit constants. (see Fig.2(a)) |
| Publication Title | Memoirs of the School of Engineering, Okayama University |
| Published Date | 1966-03-31 |
| Volume | volume1 |
| Issue | issue1 |
| Start Page | 70 |
| End Page | 77 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307723 |
| JaLCDOI | 10.18926/15547 |
|---|---|
| FullText URL | Mem_Sch_Eng_OU_1_59.pdf |
| Author | Yamashista Yuhiko| Yokoyama Fumiyoshi| Monobe Kazuo| |
| Abstract | Fujiwara's oriented crystallization method was applied to poly (ethylene oxide) to obtain a uniform texture composed of parallel fibrils which correspond to the structure of a radial direction of spherulites. Two different x-ray diffraction patterns in crystallite orientation of the spherulite radius were obtained. From these patterns and crystallization conditions it could be determined that the spherulite radius has a [401] rotation axis below about 50℃ and two [421] and [421]rotation axes above about 50℃. A reasonable interpretation was given for these two ways of spherulitic crystallization, based on the growth features of lamellar crystals of poly (ethylene oxide). That is, it is concluded that a second order transition in poly (ethylene oxide) lamellar crystals near the temperature of 50℃ is responsible for the change of the rotation axis in spherulite radius. |
| Publication Title | Memoirs of the School of Engineering, Okayama University |
| Published Date | 1966-03-31 |
| Volume | volume1 |
| Issue | issue1 |
| Start Page | 59 |
| End Page | 62 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307666 |
| JaLCDOI | 10.18926/15537 |
|---|---|
| FullText URL | Mem_Sch_Eng_OU_1_1.pdf |
| Author | Honda Kazuo| Konaga Tetsuro| |
| Abstract | In the field of mechanical engineering, the need for a simple but effective way of evaluating the fatigue strength and lifetime of structural materials is an important problem with which the design engineers have faced. Accordingly, a cunsiderable amount of investigations have been made in this field. However, the basic nature of fatigue damage and the conditions which lead to the initiation and propagation of fatigue cracks are not sufficiently understood. Nor any satisfactory method of assessing the exact state of fatigue damage has yet been found. X-ray diffraction technique is not a new as the method of experimental study, but has often been adopted for direct and non-destructive observations of change in the local structures of crystalline materials at fundamental research. X-ray technique is one of the most powerful means to investigate the changes of microscopic- structure due to external forces, considering the fatigue phenomena occur on the surface of materials. Accordingly, one of the authors have studied the relations of half-value breadth of X-ray diffraction lines, residual stresses and hardness and number of cycles of fatigue stresses in detail for various sorts of engineering metallic materials. In the results of a number of experiments, it has been found that the variation in half-value breadth showed very regular relation with number of stress cycles, the authors have reported that the lifetime of materials in fatigue could be predicted. Consequently, it needs to investigate whether or not this predicting method is fitted for alloy containg α and β phase, moreover, it is interesting to make clear the fatigue mechanism of such materials which are present two phases having the different yield stress and type of crystal structure. |
| Publication Title | Memoirs of the School of Engineering, Okayama University |
| Published Date | 1966-03-31 |
| Volume | volume1 |
| Issue | issue1 |
| Start Page | 1 |
| End Page | 12 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307488 |
| JaLCDOI | 10.18926/15494 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_25_1_71.pdf |
| Author | Myojin Sho| Yamada Masahito| Fujii Naoto| |
| Abstract | A transportation planning way of approach is applied to optimal pricing and planning of urban expressway network. Two kinds of network are investigated ; four radials with one ring system and four radials with two rings system. The model is composed of three submodels ; road systell, trip generation-attraction and traffic diversion. Some iaplicative aspects are shown of the optimal solutions that maximize the aggregate number of the trips diverted to expressway under constraints ; equilibrium of revenue and expenditure and traffic capacity constraint. (1) traffic flow has the peaks at junctions on radial expressway that are adjusted to be equal to the traffic capacity. (2) two rings system realizes the larger aggregate number of diverted trips by lower toll rate than one ring system does. (3) well-located second ring has a remarkable effect on improvement in accessibility to expressway and (4) some parameters in the model have curious effects on the optimal system. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1990-12-14 |
| Volume | volume25 |
| Issue | issue1 |
| Start Page | 71 |
| End Page | 87 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307618 |
| JaLCDOI | 10.18926/15387 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_30_2_9.pdf |
| Author | Sakakibara, Akira| Kanadani, Teruto| |
| Abstract | Fatigue strength of Al-Cu alloy was examined by a repeated tensile mode when the specimens were aged and reversion annealed. The specimen quenched from 723K and aged fully around room temperature showed fatigue strength which depended on the existence of soft layer, while the specimen quenched from 723K and aged in the same way showed fatigue strength independent of the existence of the soft layer. Fatigue strength of the specimen, of which the soft surface layer was removed, was the same for either quenching temperature. Fatigue strength became higher when the soft surface layer was thickened with reversion annealing for 600s at 323K after aging. The soft surface layer was thought to increase fatigue strength of the aged Al-Cu alloy as well as Al-Zn alloy. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1996-03-29 |
| Volume | volume30 |
| Issue | issue2 |
| Start Page | 9 |
| End Page | 13 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307694 |
| JaLCDOI | 10.18926/15386 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_30_1_111.pdf |
| Author | Ye Ju| Tanaka, Masahiro| Tanino, Tetsuzo| |
| Abstract | Mutation is one of the important operators in genetic algorithm. In traditional genetic algorithm, mutation is activated stochastically. In this way it is unknown and cannot be controlled for which individuals to be mutated. Therefore, it is unavoidable that some good individuals are destroyed by mutation and then the evolutionary efficiency of the genetic algorithm is dampened. Owing to this kind of destructivity of mutation, the operator of mutation has to be limited within a very small probability, and the potentiality of mutation is consequently limited. In this paper, we present an evolutionary chain-based mutation and a control strategy of reasonable competition, in which the heuristic information provided by the evaluation function is well utilized. This method avoids the blindness of stochastic mutation. The performance improved in this method is shown by two examples, a fuzzy modeling for the identification of a nonlinear function and a typical combinatorial optimization problem-the traveling salesman problem. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1995-12-28 |
| Volume | volume30 |
| Issue | issue1 |
| Start Page | 111 |
| End Page | 120 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002307635 |
