検索結果 3251 件
| 著者 | 河崎 陽一| 松永 尚| 千堂 年昭| |
|---|---|
| 発行日 | 2010-04-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 122巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 渡辺 信之| 髙岡 宗徳| 櫻間 一史| 友野 靖子| 畠山 慎二| 大森 修| 元木 崇之| 白川 靖博| 山辻 知樹| 羽井佐 実| 松岡 順治| Beer, David G.| 長塚 仁| 田中 紀章| 猶本 良夫| |
|---|---|
| 発行日 | 2010-04-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 122巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/20012 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_29_1_15.pdf |
| 著者 | 東辻 千枝子| Matsubara, Takeo| Obuchi, Masumi| |
| 抄録 | A molecular orbital approach to the electronic structure of C(60) molecule is formulated on the basis of optimized bond orbital model and the stability of the truncated icosahedron structure is examined. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1994-11-30 |
| 巻 | 29巻 |
| 号 | 1号 |
| 開始ページ | 15 |
| 終了ページ | 22 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002310919 |
| JaLCDOI | 10.18926/20011 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_29_1_7.pdf |
| 著者 | Hiroyuki Tachibana| 東辻 浩夫| 奈良 重俊| 東辻 千枝子| |
| 抄録 | Effects of interface fluctuations on the electronic states in semiconductor quantum dots are analyzed on the basis of numerical solutions for ground state wave functions and energy eigenvalues. It is shown that the effective volume of confinement becomes smaller than the real volume of quantum dots due to fluctuation. This effect comes from the fact that the wave functions with larger characteristic wavelength are not able to deform themselves following the fluctuation of interfaces exactly. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1994-11-30 |
| 巻 | 29巻 |
| 号 | 1号 |
| 開始ページ | 7 |
| 終了ページ | 14 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002310741 |
| JaLCDOI | 10.18926/bgeou/19989 |
|---|---|
| タイトル（別表記） | Contemporary Diesterweg (1)-Focus on Reconsideration of Thinking Process in Educational Target |
| フルテキストURL | 143_047_055.pdf |
| 著者 | 安藤 美華代| |
| 抄録 | Aim The purpose of this study is to identify psychosocial factors associated with drinking behavior among underage university students. Methods: University students under the age of twenty (N=236) completed a self-reported questionnaire. Relationships between psychosocial variables and drinking were investigated using multigroup structural equation modeling analyses. Restllts: Number of friends who drink alcohol, vigor, self-efficacy in interpersonal relationships, self-assertive efficacy against drinking, self-efficacy in overcoming difficulty, and impulsiveness were associated with drinking behavior. Conclusion: These findings suggest that self-assertive efficacy to resist peer pressure, self-control and mood status are potentially important factors that could be addressed by programs to prevent drinking among underage university student. |
| キーワード | 未成年大学生 飲酒 友達の影響 気分状態 自己効力感 |
| 出版物タイトル | 岡山大学大学院教育学研究科研究集録 |
| 発行日 | 2010-02-25 |
| 巻 | 143巻 |
| 開始ページ | 47 |
| 終了ページ | 55 |
| ISSN | 1883-2423 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002309148 |
| JaLCDOI | 10.18926/19956 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_44_24.pdf |
| 著者 | 金谷 健一| Sugaya Yasuyuki| |
| 抄録 | We present an improved version of the MSL method of Sugaya and Kanatani for multibody motion segmentation. We replace their initial segmentation based on heuristic clustering by an analytical computation based on GPCA, fitting two 2-D affine spaces in 3-D by the Taubin method. This initial segmentation alone can segment most of the motions in natural scenes fairly correctly, and the result is successively optimized by the EM algorithm in 3-D, 5-D, and 7-D. Using simulated and real videos, we demonstrate that our method outperforms the previous MSL and other existing methods. We also illustrate its mechanism by our visualization technique. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2010-01 |
| 巻 | 44巻 |
| 開始ページ | 24 |
| 終了ページ | 31 |
| ISSN | 1349-6115 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002309159 |
| JaLCDOI | 10.18926/19953 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_44_1.pdf |
| 著者 | Nagai Shinji| Umeda Ryosuke| 鶴田 健二| |
| 抄録 | In this paper, we investigate a light-confinement phenomenon in the structure which has triangular latice composed of Double NeGative Metamaterial (DNGM). In geometrical optics consideration, this structure is expected to confine lights completely by sequential refractions in the structure. We demonstrate it by using the two dimensional finite-difference time-domain simulations. We introduce Drude-Lorentz model for dielectric and magnetic dispersion of the material at optical frequencies. We analyze quantitatively the effects of energy loss in the DNGM on the light-confinement efficiency. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 2010-01 |
| 巻 | 44巻 |
| 開始ページ | 1 |
| 終了ページ | 6 |
| ISSN | 1349-6115 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002309117 |
| 著者 | 那須 達世| |
|---|---|
| 発行日 | 2009-12-31 |
| 出版物タイトル | |
| 資料タイプ | 学位論文 |
| 著者 | 中尾 愛| |
|---|---|
| 発行日 | 2009-12-31 |
| 出版物タイトル | |
| 資料タイプ | 学位論文 |
| JaLCDOI | 10.18926/ESR/19849 |
|---|---|
| タイトル（別表記） | ガーナ，アシャンティ火山帯南部に分布する古原生代変火山岩類のSr-Nd 同位体組成 |
| フルテキストURL | 016_009_028.pdf |
| 著者 | ダムパリ サムエル| 柴田 次夫| アシード ダニエル| 岡野 修| マーヌ ジョンソン| サチ パトリック| |
| 抄録 | Neodymium (Nd) and strontium (Sr) isotopic data are presented for Paleoproterozoic metavolcanic rocks in the southern part of the Ashanti volcanic belt of Ghana. The metavolcanic rocks are predominantly basalts/basaltic andesites and andesites with minor dacites. Two types of basalts/basaltic andesites (B/A), Type I and Type II, have been identified. The Type I B/A are stratigraphically overlain by the Type II B/A, followed by the andesites and the dacites. The analyzed volcanic rocks commonly have low initial (87)Sr/(86)Sr ratios consistent with previous studies on Paleoproterozoic rocks from the West African craton. The LREE-depleted, tholeiitic Type I B/A exhibit back-arc basin geochemical signatures and show high positive epsilon Nd (i.e., ε(Nd) (2.1 Ga) = +3.89 to +7.21), which suggest a long term depleted source and also indicate that they were produced in an entirely oceanic environment devoid of influence of continental crust. The isotope signatures are thus consistent with the previously published trace element data of the Type I basalts/basaltic andesites in suggesting that their parent magma was generated from a depleted mantle. The Type I B/A have Nd model ages (T(DM2)) of 1.83–2.09 Ga similar to their formation ages, suggesting that they were juvenile at their time of formation. The andesites and the Type II B/A andesites show LREE-enriched patterns and exhibit characteristics of subduction zone-related magmas, and show initial ε(Nd) (2.1Ga) values of –1.15 to + 1.35 and Nd model ages (T(DM2)) of 2.32–2.58 Ga. The LREE-enriched dacitic porphyry also exhibits characteristics of subduction zone-related magmas, and have initial ε(Nd) (2.1Ga) value of –2.24 and Nd model ages (T(DM2)) of 2.64 Ga. The Nd isotopic data confirms the juvenile character of the Birimian crust, but also suggests some contributions of a pre-Birimian crustal material (or Archean?) in the genesis of some of the metavolcanic rocks. Our isotopic result is consistent with the island arc complex model which views Paleoproteozoic terranes of West Africa in the context of subduction–accretion processes. |
| キーワード | Sr–Nd isotopes petrogenesis tectonic setting Birimian metavolcanics Ashanti volcanic belt |
| 出版物タイトル | Okayama University Earth Science Report |
| 発行日 | 2009-12-25 |
| 巻 | 16巻 |
| 号 | 1号 |
| 開始ページ | 9 |
| 終了ページ | 28 |
| ISSN | 1340-7414 |
| 言語 | 英語 |
| 著作権者 | 岡山大学地球科学研究報告編集委員会 |
| 論文のバージョン | publisher |
| NAID | 120002308985 |
| JaLCDOI | 10.18926/fest/19729 |
|---|---|
| フルテキストURL | 004_093_100..pdf |
| 著者 | 名合 宏之| Mia Faruque| |
| 抄録 | Major failure of structures usually occurs during flood flows due to scourin, sinking and sliding. These types of failure are considered to be in close relation to the dynamic behavior of bed material around the structures. Failure of bridges due to the phenomenon of scouring around piers is a common, natural problem of river hydraulics. Experiments were carried out to investigate the characteristics of pore water pressure and effective stresses in the bed material around a circular bridge pier under abrupt change of water pressure. A laboratory model was used to clarify the effect of the variation of water pressure to determine the mechanism of the collapse of circular bridge pier during flood or storm waves. The experimental results showed that the bed material under suddeen change in drop of water pressure near the pier was weakenend by an increase in excess pore pressure, followed by a considerable quick removal of bed material. |
| キーワード | Pore pressure Effective stress Abrupt water pressure change Scour Bridge pier |
| 出版物タイトル | 岡山大学環境理工学部研究報告 |
| 発行日 | 1999-02-26 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 93 |
| 終了ページ | 100 |
| ISSN | 1341-9099 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002309116 |
| JaLCDOI | 10.18926/fest/19726 |
|---|---|
| フルテキストURL | 004_081_092.pdf |
| 著者 | 河野 伊一郎| 竹下 祐二| Mohammad Jafar Ali| |
| 抄録 | For reducing or bridging gap between small scale laboratory investigations and large scale field investigations, a simple and portable model which is based on real situation and has a compatibility to laboratory core sampling, the pressure infiltrometer technique is introduced for determination of field-saturated hydraulic conductivity. The field -saturated hydraulic conductivity, K(FS), is obtained from measurements of steady flow rates applying constant head as well as falling head principle. The device is also used for field core sampling on which laboratory constant head as well as falling head tests is carried out. The field device is validated through comparison to laboratory core sample experiment and other existing methods. This paper describes first time a versatile field device representing good performance for in situ determination of hydraulic parameters in a short time. |
| キーワード | In-situ test Field-saturated Hydraulic conductivity Matric flux potential Wetting front 3D-flow |
| 出版物タイトル | 岡山大学環境理工学部研究報告 |
| 発行日 | 1999-02-26 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 81 |
| 終了ページ | 92 |
| ISSN | 1341-9099 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002309012 |
| JaLCDOI | 10.18926/fest/19719 |
|---|---|
| フルテキストURL | 004_057_075.pdf |
| 著者 | 大竹 正徳| 田中 豊| 冨田 誠| |
| 抄録 | An analytic approach that provides explicit estimates of risk on cataract and epilation data is evaluated by reasonableness of conceivable relative risk models regarding a simple, odds, logistic or Gompertz regression method, assuming a binomial distribution. In these analyses, we apply relative risk models with two thresholds between epilators and nonepilators from a highly characteristic lesion of which radiation cataract does not occur around 2 gray for a single acute exposure. The risk models are fitted to the data assuming 10 as a constant relative biological effectiveness of neutron. The likelihood of observing the entire data set in these models fitted is evaluated by an individual binary-response array. Estimation of a threshold with or without severe epilation and the 100(1-α )% confidence limits are derived from the maximum likelihood approach. The relative risk model with two thresholds can be expressed as a formula with structure of Backgroun × RR, where RR includes threshold models with or without epilation. The radiosensitivity of ionizing radiation to cataracts has been examined for the relationship between epilators and nonepilators. |
| キーワード | radiation cataract threshold model profile approach risk model radiosensitivity |
| 出版物タイトル | 岡山大学環境理工学部研究報告 |
| 発行日 | 1999-02-26 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 57 |
| 終了ページ | 75 |
| ISSN | 1341-9099 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002309188 |
| 著者 | Karatsu Naoya| Nagata Yuichi| Ono Isao| Kobayashi Shigenobu| |
|---|---|
| 発行日 | 2009-11-12 |
| 出版物タイトル | Proceedings : Fifth International Workshop on Computational Intelligence & Applications |
| 巻 | 2009巻 |
| 号 | 1号 |
| 資料タイプ | 会議発表論文 |
| JaLCDOI | 10.18926/fest/19714 |
|---|---|
| フルテキストURL | 004_037_055.pdf |
| 著者 | 崔 承培| 田中 豊| |
| 抄録 | One of major problems in spatial analysis is to estimate the value z(s(0)) at an unknown location s(0) using the information about observations z(s(α)), α = 1,…,n. In this article, we will perform a numerical study about some methods for this problem. That is, we examine both the tranditional statistical method which does not take into account spatial correlation and the spatial statistical method which takes into account spatial correlation by applying them to a set of non-stationary spatial data. We compare the predictive powers of these methods. More precisely, we choose Universal Kriging(UK) and Median-Polish Kriging(MPK) as spatial statistical methods, and locally weighted regression or LOESS as a traditional method. As the major criterion for comparison, we use the so-called PRESS statistic, and also draw the prediction surface plot and the prediction standard error surface plot as minor criteria. A real numerical example of non-stantionary spatial data is analyzed for the comparison among the above three methods. |
| キーワード | Stationary Variogram UK MPK LOESS |
| 出版物タイトル | 岡山大学環境理工学部研究報告 |
| 発行日 | 1999-02-26 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 37 |
| 終了ページ | 55 |
| ISSN | 1341-9099 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002309080 |
| JaLCDOI | 10.18926/fest/19712 |
|---|---|
| タイトル（別表記） | Assessment of Local Influence in Statistical Modelling with Equality Constraints |
| フルテキストURL | 004_019_035.pdf |
| 著者 | 張 方紅| 森 裕一| 田中 豊| |
| キーワード | Cook's local influence equality constraints principal component analysis subsets of parameters |
| 出版物タイトル | 岡山大学環境理工学部研究報告 |
| 発行日 | 1999-02-26 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 19 |
| 終了ページ | 35 |
| ISSN | 1341-9099 |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| NAID | 120002309028 |
| 著者 | Horio Keiichi| Katayama Tomohiro| |
|---|---|
| 発行日 | 2009-11-11 |
| 出版物タイトル | Proceedings : Fifth International Workshop on Computational Intelligence & Applications |
| 巻 | 2009巻 |
| 号 | 1号 |
| 資料タイプ | 会議発表論文 |
| JaLCDOI | 10.18926/19689 |
|---|---|
| フルテキストURL | Mem_Fac_Eng_OU_33_2_105.pdf |
| 著者 | Tokunaga Shuichi| 大崎 紘一| |
| 抄録 | This paper deals with analytical method of human motion by image processing to make a model of the scooping process, Firstly, the scooping tool is the spoon, and while the scooping process is performing, the movement of the mouth center position and the spoon top position are measured by two cameras. As the amount of substance is over the uppermost area of the cup, the spoon is stuck obliquely into substance. Then the spoon is rotated and lifted up to the mouth. Secondly, we recognize the mouth center from the characteristic of the face image data and calculate the spoon top position to extract two points on the spoon handle from the time series images by two cameras. Finally, we describe the method of recognizing the coordinate of the mouth center and estimating the coordinate of the spoon top to analyse the scooping process. |
| 出版物タイトル | Memoirs of the Faculty of Engineering, Okayama University |
| 発行日 | 1999-04-27 |
| 巻 | 33巻 |
| 号 | 2号 |
| 開始ページ | 105 |
| 終了ページ | 110 |
| ISSN | 0475-0071 |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120002309175 |
| 著者 | Harada Hidetaka| Saeki Takashi| Miki Tsutomu| |
|---|---|
| 発行日 | 2009-11-11 |
| 出版物タイトル | Proceedings : Fifth International Workshop on Computational Intelligence & Applications |
| 巻 | 2009巻 |
| 号 | 1号 |
| 資料タイプ | 会議発表論文 |
| 著者 | Hanazawa Akitoshi| |
|---|---|
| 発行日 | 2009-11-11 |
| 出版物タイトル | Proceedings : Fifth International Workshop on Computational Intelligence & Applications |
| 巻 | 2009巻 |
| 号 | 1号 |
| 資料タイプ | 会議発表論文 |