検索結果 50208 件
| JaLCDOI | 10.18926/47001 |
|---|---|
| フルテキストURL | mfe_36_1_059_077.pdf |
| 著者 | Kanatani, Kenichi| |
| 抄録 | Contrasting "geometric fitting", for which the noise level is taken as the asymptotic variable, with "statistical inference", for which the number of observations is taken as the asymptotic variable, we give a new definition of the "geometric AIC" and the "geometric MDL" as the counterparts of Akaike's AIC and Rissanen's MDL. We discuss various theoretical and practical problems that emerge from our analysis. Finally, we show, doing experiments using synthetic and real images, that the geometric MDL does not necessarily outperform the geometric AIC and that the two criteria have very different characteristics. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2001-12 |
| 巻 | 36巻 |
| 号 | 1号 |
| 開始ページ | 59 |
| 終了ページ | 77 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80012855281 |
| JaLCDOI | 10.18926/47000 |
|---|---|
| フルテキストURL | mfe_36_1_051_057.pdf |
| 著者 | Vaillancourt, Chico| |
| 抄録 | This is a brief essay on using kinesthetic approaches to learning English as a second language. In the essay, I briefly discuss teaching philosophy and 2 small-scale Technical Engineering projects that I have introduced and completed with my 4(th) year engineering students in the spring of 2001. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2001-12 |
| 巻 | 36巻 |
| 号 | 1号 |
| 開始ページ | 51 |
| 終了ページ | 57 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120003497026 |
| JaLCDOI | 10.18926/46999 |
|---|---|
| フルテキストURL | mfe_36_1_041_049.pdf |
| 著者 | Totsuji, Hiroo| Kishimoto, Tokunari| Totsuji, Chieko| Tsuruta, Kenji| |
| 抄録 | The ground state of spherical clusters of charged particles of one species confined by the three-dimensional parabolic potential is investigated by molecular dynamics simulations with the system size from N = 5000 to N = 1.2 × 10(5) . The cohesive energy per particle is compared between the shell-structured clusters and spherical finite bcc lattices with relaxed surfaces, the former and the latter being the ground states for small systems and for the large enough systems, respectively. It is shown that, when N > N(c)(N(c) > N), finite bcc lattices with relaxed surfaces (the shell structures) have stronger cohesion than the shell structures (finite bcc lattices with relaxed surfaces) and the critical value of the transition N(c) is estimated to be 10(4) < N(c) < 1.4 × 10(4) . The nucleation of the bcc lattice in the shell-structured cluster of 2 × 10(4) ions is observed. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2001-12 |
| 巻 | 36巻 |
| 号 | 1号 |
| 開始ページ | 41 |
| 終了ページ | 49 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80015112663 |
| JaLCDOI | 10.18926/46998 |
|---|---|
| フルテキストURL | mfe_36_1_029_039.pdf |
| 著者 | Imai, Jun| Wada, Kiyoshi| |
| 抄録 | A procedure for control-oriented modeling is proposed for large flexible structures with unknown modal parameters. Techniques on quantification of errors in modal truncated nominal models are developed for the case where a finite number of upper and lower bounds of the unknown modal parameters are given. A feasible set of systems matching the conditions is introduced, and then error bounds covering the feasible set are established in the frequency domain. The bounds are easily checked using linear programming for any user-specified frequency. The feasibility of the proposed scheme is illustrated by numerical study on an ideal flexible beam example. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2001-12 |
| 巻 | 36巻 |
| 号 | 1号 |
| 開始ページ | 29 |
| 終了ページ | 39 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80012887118 |
| JaLCDOI | 10.18926/46997 |
|---|---|
| フルテキストURL | mfe_36_1_017_028.pdf |
| 著者 | Endo, Shinichiro| Konishi, Masami| |
| 抄録 | Small Scale Hydroelectric Power Generation is made using the water drop caused by the gradient difference between that of the river and that of the penstock. The water flow in this system apt to vary with time. Especially, at the time of the flood or that of the dry, the flow in the water stream varies largely. To realize the stable generation, it is necessary to maintain the water level in the head tank located in the mid way in the stream channel at a constant level. In this paper, variation of water level is forecasted using two-tank model for the penstock and the head tank and the water level control algorithm is proposed by deadbeat control. The effectiveness of the algorithm is evaluated beforehand using the simulation program of the water environment for the hydroelectric generation system. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2001-12 |
| 巻 | 36巻 |
| 号 | 1号 |
| 開始ページ | 17 |
| 終了ページ | 28 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120003497023 |
| JaLCDOI | 10.18926/46996 |
|---|---|
| フルテキストURL | mfe_36_1_007_016.pdf |
| 著者 | Li, Yan| Abe, Takeji| Tada, Naoya| Kanazawa, Masanori| |
| 抄録 | The change in the surface morphology of polycrystalline titanium during tensile plastic deformation is studied, using the scanning probe microscope as well as the laser scanning microscope. The observation shows that the slip occurs mainly near grain boundary at the strain range of ε < 0.05. The slip develops with the applied strain, and the slip on the second slip system or the crossing of slip lines appear. The surface roughness increases linearly with the applied strain. The height difference between the grain boundary area and the inner grain area also increases with the applied strain, though the increase rate becomes low after the applied strain of about 0.3. The nano-scale height difference of the surface step of slip lines increases with the applied strain, though it remains almost constant after the applied strain of 0.4. The averaged surface roughness measured with the scanning probe microscope is in good agreement with that measured with the laser scanning microscope. |
| キーワード | Plasticity Polycrystalline Titanium Tensile Deformation Surface Morphology Slip Twin Probe Scanning Microscope Laser Scanning Microscope |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2001-12 |
| 巻 | 36巻 |
| 号 | 1号 |
| 開始ページ | 7 |
| 終了ページ | 16 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80012831215 |
| JaLCDOI | 10.18926/46995 |
|---|---|
| フルテキストURL | mfe_36_1_001_006.pdf |
| 著者 | Kondou, Ryouji| Abe, Takeji| Tada, Naoya| Shimizu, Ichiro| |
| 抄録 | Change in crystal orientation and strain of individual grains during tensile plastic deformation are studied to clarify on the microscopic deformation behavior of polycrystalline copper. The orientation of grain is measured by electron backscatter diffraction (EBSD) technique in the scanning electron microscope. The principal strain of grain is also measured by obtaining the approximated ellipse of strain distribution. The deformation of grains dependent on their initial orientation and the rotation of the principal strain during uniaxial tension are clarified. |
| キーワード | Polycrystalline Copper Plastic Deformation SEM EBSD Method Grain Orientation Crystal Orientation Map |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2001-12 |
| 巻 | 36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 | 120003497021 |
| 著者 | Faculty of Engineering, Okayama University| |
|---|---|
| 発行日 | 2001-12 |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 巻 | 36巻 |
| 号 | 1号 |
| 資料タイプ | その他 |
| 著者 | 岡山大学埋蔵文化財調査研究センター| |
|---|---|
| 発行日 | 2011-03-18 |
| 出版物タイトル | 岡山大学埋蔵文化財調査研究センター報 |
| 巻 | 45巻 |
| 資料タイプ | その他 |
| 著者 | 岡山大学埋蔵文化財調査研究センター| |
|---|---|
| 発行日 | 2010-12-22 |
| 出版物タイトル | 岡山大学埋蔵文化財調査研究センター報 |
| 巻 | 44巻 |
| 資料タイプ | その他 |
| 著者 | 岡山大学埋蔵文化財調査研究センター| |
|---|---|
| 発行日 | 2010-03-10 |
| 出版物タイトル | 岡山大学埋蔵文化財調査研究センター報 |
| 巻 | 43巻 |
| 資料タイプ | その他 |
| 著者 | 岡山大学埋蔵文化財調査研究センター| |
|---|---|
| 発行日 | 2010-02-19 |
| 出版物タイトル | 岡山大学埋蔵文化財調査研究センター報 |
| 巻 | 42巻 |
| 資料タイプ | その他 |
| 著者 | 岡山大学埋蔵文化財調査研究センター| |
|---|---|
| 発行日 | 2009-03-16 |
| 出版物タイトル | 岡山大学埋蔵文化財調査研究センター報 |
| 巻 | 41巻 |
| 資料タイプ | その他 |
| 著者 | 桑原 一郎| |
|---|---|
| 発行日 | 1936-05-31 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 48巻 |
| 号 | 5号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 中村 俊雄| |
|---|---|
| 発行日 | 1936-05-31 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 48巻 |
| 号 | 5号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 金岡 英雄| |
|---|---|
| 発行日 | 1936-05-31 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 48巻 |
| 号 | 5号 |
| 資料タイプ | 学術雑誌論文 |
| フルテキストURL | JOrganometallicChemistry_696_1_348-351.pdf |
|---|---|
| 著者 | Kuninobu, Yoichiro| Nakahara, Takahiro| Yu, Peng| Takai, Kazuhiko| |
| キーワード | Rhenium Insertion Hydrogen transfer Aldimine Alkene |
| 発行日 | 2011-01-01 |
| 出版物タイトル | Journal of Organometallic Chemistry |
| 巻 | 696巻 |
| 号 | 1号 |
| 出版者 | Elsevier Science SA. |
| 開始ページ | 348 |
| 終了ページ | 351 |
| ISSN | 0022-328X |
| NCID | AA00704122 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | © 2011 Elsevier B.V. All rights reserved. |
| 論文のバージョン | author |
| DOI | 10.1016/j.jorganchem.2010.09.064 |
| Web of Science KeyUT | 000285918100044 |
| 著者 | Faculty of Engineering, Okayama University| |
|---|---|
| 発行日 | 2003-03 |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 巻 | 37巻 |
| 号 | 2号 |
| 資料タイプ | その他 |
| JaLCDOI | 10.18926/46983 |
|---|---|
| フルテキストURL | mfe_37_2_089_097.pdf |
| 著者 | Iokibe, Kengo| Toyota, Yoshitaka| Wada, Osami| Koga, Ryuji| |
| 抄録 | Aerosol extinction coefficients of clouds and dust were continuously measured in the year of 2002 with a polarized Mie-scattering lidar controlled by an automatic and remotely operating system utilizing internet services. Measured cloud extinctions were greater than 1.0 km(-1) below the altitude 6 km, 0.17 - 1.0 km(-1) between 6 and 10 km, and 0.091 - 0.3 km(-1) beyond 10km. Extinction of dust were 0.10 and 0.20 km(-1) for Asian dust and 0.057 km(-1) for urban dust. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2003-03 |
| 巻 | 37巻 |
| 号 | 2号 |
| 開始ページ | 89 |
| 終了ページ | 97 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120003457336 |
| JaLCDOI | 10.18926/46982 |
|---|---|
| フルテキストURL | mfe_37_2_073_087.pdf |
| 著者 | Nogami, Yasuyuki| Morikawa, Yoshitaka| |
| 抄録 | Public key cryptosystem has many uses, such as to sign digitally, to realize electronic commerce. Especially, RSA public key cryptosystem has been the most widely used, but its key for ensuring sufficient security reaches about 2000 bits long. On the other hand, elliptic curve cryptosystem(ECC) has the same security level with about 7-fold smaller length key. Accordingly, ECC has been received much attention and implemented on various processors even with scarce computation resources. In this paper, we deal with an elliptic curve which is defined over extension field F(p2c) and has a prime order, where p is the characteristic and c is a non negative integer. In order to realize a fast software implementation of ECC adopting such an elliptic curve, a fast implementation method of definition field F(p2c) especially F(p8) is proposed by using a technique called successive extension. First, five fast implementation methods of base field F(p2) are introduced. In each base field implementation, calculation costs of F(p2)-arithmetic operations are evaluated by counting the numbers of F(p)-arithmetic operations. Next, a successive extension method which adopts a polynomial basis and a binomial as the modular polynomial is proposed with comparing to a conventional method. Finally, we choose two prime numbers as the characteristic, and consider several implementations for definition field F(p8) by using five base fields and two successive extension methods. Then, one of these implementations is especially selected and implemented on Toshiba 32-bit micro controller TMP94C251(20MHz) by using C language. By evaluating calculation times with comparing to previous works, we conclude that proposed method can achieve a fast implementation of ECC with a prime order. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2003-03 |
| 巻 | 37巻 |
| 号 | 2号 |
| 開始ページ | 73 |
| 終了ページ | 87 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80015999992 |