検索結果 14409 件
| JaLCDOI | 10.18926/46969 |
|---|---|
| フルテキストURL | mfe_37_1_015_023.pdf |
| 著者 | Kanatani, Kenichi| |
| 抄録 | In order to facilitate smooth communications with researchers in other fields including statistics, this paper investigates the meaning of "statistical methods" for geometric inference based on image feature points, We point out that statistical analysis does not make sense unless the underlying "statistical ensemble" is clearly defined. We trace back the origin of feature uncertainty to image processing operations for computer vision in general and discuss the implications of asymptotic analysis for performance evaluation in reference to "geometric fitting", "geometric model selection", the "geometric AIC", and the "geometric MDL". Referring to such statistical concepts as "nuisance parameters", the "Neyman-Scott problem", and "semiparametric models", we point out that simulation experiments for performance evaluation will lose meaning without carefully considering the assumptions involved and intended applications. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2002-11 |
| 巻 | 37巻 |
| 号 | 1号 |
| 開始ページ | 15 |
| 終了ページ | 23 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80015664455 |
| JaLCDOI | 10.18926/46968 |
|---|---|
| フルテキストURL | mfe_37_1_011_014.pdf |
| 著者 | Totsuji, Chieko| Limant, Muhammad S.| Tsuruta, Kenji| Totsuji, Hiroo| |
| 抄録 | A theoretical approach which has been successful in reproducing results of molecular-dynamics simulations on dusty plasmas is applied to estimate the screening length and the electric charge of two-dimensional dust crystals of melamine particles in the discharge chamber experiment. It has been found that the screening length is of the same order of magnitude as the inter-particle distance and the electric charge decreases on increasing number density of dust particles. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2002-11 |
| 巻 | 37巻 |
| 号 | 1号 |
| 開始ページ | 11 |
| 終了ページ | 14 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80015784816 |
| JaLCDOI | 10.18926/46967 |
|---|---|
| フルテキストURL | mfe_37_1_001_010.pdf |
| 著者 | Sotobayashi, Ken| Konishi, Masami| Nishi, Tatsushi| Imai, Jun| |
| 抄録 | Auto Guided Vehicles (AGVs) are widely used in a semi-conductor fabricating factory and contribute to the stable production of a high quality semi-conductor products. In the near future, further expansion of the transportation system is expected accompanied with the rapid growth of semi-conductor industries. In such situation, the necessity of performing quick planning of transportation route and transportation control will be elevated. In this paper, practicable planning of the transportation route and transportation control are studied based on the decentralized agent method. Especially, the geometrical sizes of AGVs are considered in the determination of transportation routes and control strategy avoiding the occurrence of mutual collisions or deadlock of AGVs. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2002-11 |
| 巻 | 37巻 |
| 号 | 1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 | 120003457322 |
| 著者 | Faculty of Engineering, Okayama University| |
|---|---|
| 発行日 | 2002-11 |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 巻 | 37巻 |
| 号 | 1号 |
| 資料タイプ | その他 |
| 著者 | Mbuna, Julius| Kaneta, Takashi| Imasaka, Totaro| |
|---|---|
| 発行日 | 2011-06-24 |
| 出版物タイトル | Journal of Chromatography A |
| 巻 | 1218巻 |
| 号 | 25号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | Yorifuji, Takashi| Tsuda, Toshihide| Inoue, Sachiko| Takao, Soshi| Harada, Masazumi| |
|---|---|
| 発行日 | 2011-07 |
| 出版物タイトル | Environment International |
| 巻 | 37巻 |
| 号 | 5号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | Yorimitsu, Takeshi| Kiritooshi, Naruto| Nakagoshi, Hideki| |
|---|---|
| 発行日 | 2011-08-15 |
| 出版物タイトル | Developmental Biology |
| 巻 | 356巻 |
| 号 | 2号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | Hanafusa, Tadashi| Mohamed, Ali Eldib Ali| Kitaoka, Kenta| Ohue, Yoshihiro| Nakayama, Eiichi| Ono, Toshiro| |
|---|---|
| 発行日 | 2011-02-01 |
| 出版物タイトル | Cancer Letters |
| 巻 | 301巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | Kinoshita, Hiroshi| Nakayama, Takashi| Matsumoto, Naohiro| Ohmae, Nobuo| |
|---|---|
| 発行日 | 2011-08 |
| 出版物タイトル | Carbon |
| 巻 | 49巻 |
| 号 | 10号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | Faculty of Engineering, Okayama University| |
|---|---|
| 発行日 | 2004-03 |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 資料タイプ | その他 |
| JaLCDOI | 10.18926/46956 |
|---|---|
| フルテキストURL | mfe_38_1-2_097_100.pdf |
| 著者 | Yamagiwa, Masashi| Hirao, Taichi| Kiyomi, Masaaki| Akao, Tetsuyuki| Mizuki, Eiichi| Ohba, Michio| Sakai, Hiroshi| |
| 抄録 | Bacillus thuringiensis subsp. coreanensis A2316 is a newly isolated strain from Yonakunijima Island in Japan. It produces the proteinaceous inclusion body (crystal) which has no insecticidal and hemolytic activities. When the crystal proteins were digested by proteinase K, they exhibited the strong cytotoxicity against human leukemic T cell, MOLT-4. The proteinase K-digested A2316 crystal proteins have little damage upon the cell membrane of MOLT-4, suggesting that the cell death of MOLT-4 was induced through a mechanism other than the colloid-osmotic swelling and cell lysis as caused by hitherto known B. thuringiensis crystal proteins. The 29-kDa polypeptide proved to be an active component of the proteinase K-digested A2316 crystal proteins. EC(50) of the purified 29-kDa polypeptide was 0.0579 μg/ml. The N-terminal amino acid sequence of the 29-kDa polypeptide was identical with that of p29 produced by B. thuringiensis A1519 strain and shared no significant homology with all the known proteins, suggesting that this polypeptide belong to a new family of B. thuringiensis crystal proteins. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2004-03 |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 開始ページ | 97 |
| 終了ページ | 100 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80017001823 |
| JaLCDOI | 10.18926/46955 |
|---|---|
| フルテキストURL | mfe_38_1-2_091_096.pdf |
| 著者 | Kanayama, Naoki| Yamakoshi, Kimi| Kiyomi, Masaaki| Magari, Masaki| Ohmori, Hitoshi| |
| 抄録 | Generally, IgM antibodies (Abs) produced in a primary immune response show lower affinity for an inducing antigen (Ag) compared with the corresponding IgG Abs that are major switched isotypes formed in the secondary response. An IgM molecule is a pentamer with 10 Ag-binding sites that will contribute to an increase of avidity for an Ag. To estimate the contribution of the pentameric structure to the avidity of an IgM Ab, we generated IgM and IgG1 monoclonal Abs (mAbs) with identical V regions that are specific for 4-hydroxy-3-nitrophenylacetyl (NP) by in vitro class switching of B cells followed by the cell fusion with a mouse myeloma cell line. Compared with an anti-NP IgG1 mAb, the corresponding IgM mAb showed much higher avidity for NP-conjugated bovine serum albumin, which was drastically reduced after being dissociated into monomers. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2004-03 |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 開始ページ | 91 |
| 終了ページ | 96 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80017001822 |
| JaLCDOI | 10.18926/46954 |
|---|---|
| フルテキストURL | mfe_38_1-2_073_089.pdf |
| 著者 | Kenmochi, Yukiko| Imiya, Atsushi| |
| 抄録 | Boundary tracking and surface generation are ones of main topological topics for three-dimensional digital image analysis. However, there is no adequate theory to make relations between these different topological properties in a completely discrete way. In this paper, we present a new boundary tracking algorithm which gives not only a set of border points but also the surface structures by using the concepts of combinatorial/algebraic topologies. We also show that our boundary becomes a triangulation of border points (in the sense of general topology), that is, we clarify relations between border points and their surface structures. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2004-03 |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 開始ページ | 73 |
| 終了ページ | 89 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80016889444 |
| JaLCDOI | 10.18926/46953 |
|---|---|
| フルテキストURL | mfe_38_1-2_061_071.pdf |
| 著者 | Kanatani, Kenichi| Sugaya, Yasuyuki| |
| 抄録 | The Tomasi-Kanade factorization for reconstructing the 3-D shape of the feature points tracked through a video stream is widely regarded as based on factorization of a matrix by SVD (singular value decomposition). This paper points out that the core principle is the affine camera approximation to the imaging geometry and that SVD is merely one means of numerical computation. We first describe the geometric structure of the problem and then give a complete programming scheme for 3-D reconstruction. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2004-03 |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 開始ページ | 61 |
| 終了ページ | 71 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80016889443 |
| JaLCDOI | 10.18926/46952 |
|---|---|
| フルテキストURL | mfe_38_1-2_039_059.pdf |
| 著者 | Kanatani, Kenichi| |
| 抄録 | We investigate the meaning of "statistical methods" for geometric inference based on image feature points. Tracing back the origin of feature uncertainty to image processing operations, we discuss the implications of asymptotic analysis in reference to "geometric fitting" and "geometric model selection", We point out that a correspondence exists between the standard statistical analysis and the geometric inference problem. We also compare the capability of the "geometric AIC" and the "geometric MDL' in detecting degeneracy. Next, we review recent progress in geometric fitting techniques for linear constraints, describing the "FNS method", the "HEIV method", the "renormalization method", and other related techniques. Finally, we discuss the "Neyman-Scott problem" and "semiparametric models" in relation to geometric inference. We conclude that applications of statistical methods requires careful considerations about the nature of the problem in question. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2004-03 |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 開始ページ | 39 |
| 終了ページ | 59 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80016889442 |
| 著者 | Muranaka, Makoto| Hyodo, Isao| Okumura, Wataru| Oshiki, Toshiyuki| |
|---|---|
| 発行日 | 2011-04-30 |
| 出版物タイトル | Catalysis Today |
| 巻 | 164巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/46950 |
|---|---|
| フルテキストURL | mfe_38_1-2_033_037.pdf |
| 著者 | Liman, M. Sanusi| Totsuji, Chieko| Tsuruta, Kenji| Totsuji, Hiroo| |
| 抄録 | The dynamic structure factor and the spectrum of the momentum-density fluctuations of 2D Yukawa liquids are analyzed in the domain of weak and intermediate coupling and screenlng parameters. The dispersion relations of the longitudinal and transverse collective excitations are obtained and compared with the random phase approximation (RPA) and harmonic approximation for triangular lattice. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2004-03 |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 開始ページ | 33 |
| 終了ページ | 37 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80016863329 |
| JaLCDOI | 10.18926/46949 |
|---|---|
| フルテキストURL | mfe_38_1-2_029_032.pdf |
| 著者 | Totsuji, Hiroo| Totsuji, Chieko| Ogawa, Takafumi| Tsuruta, Kenji| |
| 抄録 | The structure of dust particles in dusty plasmas under microgravity has been analyzed by molecular dynamics simulation. The charge neutrality condition satisfied by the system composed of dust particles and ambient plasma is properly taken into account. It is shown that dust particles form shell structures at low temperatures and the number of shells are obtained as a phase diagram in the plane of two parameters characterizing the system: the number of particles and the strength of screening. It is also shown that these structures are almost independent of the strength of screening. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2004-03 |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 開始ページ | 29 |
| 終了ページ | 32 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80016863328 |
| JaLCDOI | 10.18926/46948 |
|---|---|
| フルテキストURL | mfe_38_1-2_015_027.pdf |
| 著者 | Torigoe, Takashi| Konishi, Masami| Imai, Jun| Nishi, Tatsushi| |
| 抄録 | In these days, mechanical systems are becoming more complex and highly automated. So, there exist wide variety of demands for reliable diagnostic technology. A reliable data analysis and quantitative diagnosis method of mechanical system is necessary for the purpose. In this paper a quantitative diagnosis method for looper height control system has been developed based on neural network technologies. The wavelet transformation is used for pre-processing to analyze characteristics of looper height control system. And, self organizing map neural network is used for the purpose of classification based on the pre-processed data. After that, the classified results are used for quantitative diagnosis in hierarchical neural network. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2004-03 |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 開始ページ | 15 |
| 終了ページ | 27 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80016785934 |
| JaLCDOI | 10.18926/46947 |
|---|---|
| フルテキストURL | mfe_38_1-2_005_014.pdf |
| 著者 | Ishimaru, Kazuhito| Konishi, Masami| Imai, Jun| Nishi, Tatsushi| |
| 抄録 | Temperature distribution in the reactor furnace is mainly operated by gas blowing from multiple tuyeres and material charge distribution. The objective of our research is obtain the optimal profile of gas flow to control temperature distribution in the reactor furnace in the shortest possible time. We formulated the optimization problem to reduce deviation of temperature distribution from its desired one in the reactor furnace. Based on the formulation, gas blow conditions are optimized by a sequential quadratic programming method to realize the desired temperature distribution. The validity of the method was checked through numerical experiments. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2004-03 |
| 巻 | 38巻 |
| 号 | 1-2号 |
| 開始ページ | 5 |
| 終了ページ | 14 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 80016785933 |