JaLCDOI 10.18926/fest/11608
フルテキストURL 001_043_046.pdf
著者 梶原 毅|
抄録 This paper contains some remarks supplementary to the previous paper [KW] concerning Hilbert C*-bimodules given from bundle constructions and a example given by this construction concerning the product type action on C*-algebras.
キーワード Hilbert bimodule bundle tensor product
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1996-03
1巻
1号
開始ページ 43
終了ページ 46
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313825
JaLCDOI 10.18926/fest/11607
フルテキストURL 002_089_098.pdf
著者 廣瀬 壮一|
抄録 A linear scattering inverse method based in the Kirchhoff approximation is formulated to determine the location and size of a crack in a solid. A characteristic function, which defines the size of a crack, can be reconstructed from the inverse Fourier transform of scattered amplitudes at far field. The inverse method is applied to ultrasonic data scattered by a crack in an aluminum specimen. Agreement between reconstructed characteristic functions and exact ones is not good enough, because experimental conditions do not coincide with theoretical ones. We can, however, evaluate the location and size of a crack from sharp minimum points reproduced at crack tips.
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1997-01-10
2巻
1号
開始ページ 89
終了ページ 98
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313621
JaLCDOI 10.18926/fest/11606
フルテキストURL 001_027_041.pdf
著者 石川 洋文|
抄録 The author has proved the dimension formula of the space of the Hilbert modular type cusp forms of weight two. We present further refinements of the dimension formula for a real quadratic number field Q(√D), and calculate it effectively. We tabulate the dimensions for square-free natural numbers D below 104 with the computer assistance. We also determine all the spaces of their dimension below 10.
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1996-03
1巻
1号
開始ページ 27
終了ページ 41
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313526
JaLCDOI 10.18926/fest/11605
フルテキストURL 002_079_088.pdf
著者 谷口 健男|
抄録 CAD system is useful to define and input any artificial 3-dimensional configuration into computer, but the input of arbitrary natural 3-dimensional configuration is still serious for computer users. This paper includes a method to input arbitrary 3-dimensional configuration into computer. The method is based on 3-dimensioanl Delaunay triangulation which is a geometrical subdivision of arbitrary 3-dimensional convex domain into tetrahedra, and the auther shows a method to find triangles which cover whole surface of 3-dimensional body using the result of Delaunay triangulation.
キーワード Delaunay Triangulation 3D Configuration TIN CAD Computational Geometry
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1997-01-10
2巻
1号
開始ページ 79
終了ページ 88
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313817
JaLCDOI 10.18926/fest/11604
フルテキストURL 001_021_026.pdf
著者 洞 彰人|
抄録 Let G be a topological group acting on S transitively from the left with a compact stabilizer K. We show that every isotropic (i.e. spatially homogeneous w.r.t. the G-actions) Markov chain on S can be lifted to a right random walk on G and give a one-to-one correspondence between the isotropic Markov chains on S and the totality of sequences of probabilities (ν,μ1,μ2,・・・) where ν is a probability on G/K and each μn is that on K\G/K.
キーワード random walk Markov chain
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1996-03
1巻
1号
開始ページ 21
終了ページ 26
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313549
JaLCDOI 10.18926/fest/11603
タイトル(別表記) A Historical View on the Landscape in England -A Way toward Manlike Environment
フルテキストURL 002_059_078.pdf
著者 井上 博司|
抄録 The landscape in England is analyzed with regard to its climate, natural features, industry and history. First, the landscape of towns and villages in Cortswald, which is now called the heart of England, is introduced and its special features are analyzed with respect to the layout of facilities and houses. Second, the remains of prehistoric and ancient times, which are important components of landscape in England, are analyzed concerning to the features of their existing space. Finally, the characters of landscape of some cities in middle ages are considered in connection with circumstances in those days.
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1997-01-10
2巻
1号
開始ページ 59
終了ページ 78
ISSN 1341-9099
言語 日本語
論文のバージョン publisher
NAID 120002313742
JaLCDOI 10.18926/fest/11602
フルテキストURL 001_015_020.pdf
著者 中島 惇|
抄録 Let A be a bialgebra and let S be a right A-comodule algebra which has an A-comodule subalgebra T with common identity. We show that if S is a separable extension of T, then for a left A-module algebra K, K♯S is a separable extension of K♯T. Similar result holds for left A-module algebras and right A-comodule algebras.
キーワード Separable extension smash product module algebra and comodule algebra
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1996-03
1巻
1号
開始ページ 15
終了ページ 20
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313954
JaLCDOI 10.18926/fest/11601
フルテキストURL 001_001_013.pdf
著者 森本 雅治| 柳原 守|
抄録 In transformation groups on manifolds, it has been an interesting problem to ask whether for a given finite group G, there exists a real G-module V such that dim VP >2dimV>P for all subgroups P of prime power order and such that VH=0 for certain large subgroups H of G. This paper provides GAP programs to show that S5 does not admit such a real S5-module V.
キーワード GAP fixed point gap condition
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1996-03
1巻
1号
開始ページ 1
終了ページ 13
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313410
JaLCDOI 10.18926/fest/11600
タイトル(別表記) Research on Prevention of Groundwater Flow Blockage by the Detour Permeation Method
フルテキストURL 002_033_050.pdf
著者 佐藤 常雄| 西垣 誠|
抄録 With the increase of underground construction in metropolitan areas in recent years, the problem of associated earth retaining works cutting off the natural flow of groundwater has increased in both scale and extent. The authors are proposing a new diaphragm wall method that does not inhibit the flow of groundwater. This paper describes the verification of the detour permeation achieved by the new diaphragm wall method and the experimental results related to the blockage of this groundwater 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 1997-01-10
2巻
1号
開始ページ 33
終了ページ 50
ISSN 1341-9099
言語 日本語
論文のバージョン publisher
NAID 120002313670
JaLCDOI 10.18926/fest/11599
フルテキストURL 002_051_058.pdf
著者 岸田 巧| 渡辺 桂一郎| 大滝 英治|
抄録 The Measuring instrument of carbon dioxide concentration in seawater (pCO(2)) is developed. The instrument consists of an equilibrator, a non-dispersive infrared gas analyzer (NDIR), a carrier gas generator and a processing signal generator. The equilibrator has a cross section of 3 c㎡ and is 15 cm tall. The principle of pCO(2) measurement is based on the equilibration of a carrier gas phase with a seawater sample and subsequent determination of the carbon dioxide concentration in the carrier gas. The carrier gas circuit of the NDIR is opened to the atmosphere to maintain the carrier gas line at a barometric pressure. The present instrument can measure pCO(2) within the measuring error of about 2 ppm with sample water of about 180ml every 20 min.
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1997-01-10
2巻
1号
開始ページ 51
終了ページ 58
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313348
JaLCDOI 10.18926/fest/11598
フルテキストURL 002_025_032.pdf
著者 西垣 誠| Schreck Martin|
抄録 Engineers have long sought the possibility of measuring parameters such as temperature and pressure continuously in the underground with high precision, high spatial resolution and high band width of parameters. Distributed fibre optic measurement offers the use of a very fast, robust, precise, light and small gauges with an high spatial resolution. In this paper we would like to compile fibre-optic measure-methods which are available now for projects in geohydraulical engineering. This paper will propose new problems for future research work on parameter identification for such parameters as conductivity and anisotropy.
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1997-01-10
2巻
1号
開始ページ 25
終了ページ 32
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313718
JaLCDOI 10.18926/fest/11597
タイトル(別表記) Preparation of Monodispersed Hydrophilic Polymer Microspheres in Gel Permeation Chromatography
フルテキストURL 005_159_163.pdf
著者 吉澤 秀和| 池田 智| 北村 吉郎| 長谷川 正積| 森山 弘之| 河野 恵宣| 幡手 泰雄|
抄録 Monodispersed porous polymer microspheres having diameter of ca. 50 μm were successfully prepared by suspension polymerization of styrene, polyoxyethylene methacrylate and ethylenegycol dimethacrylate. Monodispersed O/W emulsion was firstly made by SPG membrane emulsification technique, following droplets-swelling method of monodispersed seed emulsion by the addition of secondary emulsion. The effect of solvent used in suspension polymerization on porous structure of prepared polymer microspheres was investigated in this paper by identification with scanning electron microscopy, porosimeter and the performance in gel permeation chromatography. It was found that benzene, 1-butanol and butyl acetate worked as poor solvent for polymer prepared in this study and that polymer microspheres prepared with these solvents had larger pores. Gel permeation chromatography measurements indicates that polystyrene having molecular weight smaller than 50,000-100,000 can be clearly separated by using gel columns packed with polymer microspheres prepared with poor solvents.
キーワード polymer microsphere monodispersed emulsion swelling method hydrophilic polymer gel permeation chromatography size-exclusive separation
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2000-02-29
5巻
1号
開始ページ 159
終了ページ 164
ISSN 1341-9099
言語 日本語
論文のバージョン publisher
NAID 120002313521
JaLCDOI 10.18926/fest/11596
フルテキストURL 002_019_024.pdf
著者 渡辺 雅二|
抄録 We study a system obtained by coupling a nonlinear oscillator and a stationary system. We analyze the dynamics in a singular limit and show that asymptotically orbitally stable periodic solutions can exist. We also show how a slow oscillation can arise in the coupled system.
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1997-01-10
2巻
1号
開始ページ 19
終了ページ 24
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313835
JaLCDOI 10.18926/fest/11595
フルテキストURL 002_009_017.pdf
著者 石川 洋文|
抄録 In this paper, we have calculated the elliptic singularities of the symmetric Hilbert modular group defined over a real quadratic number field. Applying those to the dimension formula, we tabulate the dimensions of the space of symmetric Hilbert modular forms of weight two satisfying certain cusp condition.
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1997-01-10
2巻
1号
開始ページ 9
終了ページ 17
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313960
JaLCDOI 10.18926/fest/11594
フルテキストURL 005_153_158.pdf
著者 叶 煊| 林 宣之| 坪井 貞夫|
抄録 This paper describes a novel synthesis of trienes by treatment of trans-2-alkenyl triphenylphosphonium bromides with BuLi in THF solution. Compounds, 5,7,9-tetradecatriene, 1,6-diphenyl-1,3,5-hexatriene, and 2,6,11,16-tetramethyl-2,6,8,10,14-hexadecapentaene were prepared in the yields of 40%, 9%, and 46%, respectively. Cross-coupling of trans-2-heptenyltriphenylphosphonium bromide and trans-3-phenyl-2-propenyltriphenylphosphonium bromide gave a mixture of 5,7,9-tetradecatriene (10.6%), 1,6-diphenyl-1,3,5-hexatriene (0.5%), and 1-phenyl-1,3,5-decatriene (9.4%).
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2000-02-29
5巻
1号
開始ページ 153
終了ページ 158
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313618
JaLCDOI 10.18926/fest/11593
フルテキストURL 002_001_008.pdf
著者 洞 彰人|
抄録 An aspect of the cut-off phenomenon is reviewed. It is a sort of critical phenomenon observed in a wide variety of diffusion. We introduce a framework in which such a phenomenon can be understood and analyzed in a rigorous manner. We illustrate the mechanism with some concrete models.
キーワード cut-off phenomenon critical time diffusion Markov chain on a graph symmetry
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1997-01-10
2巻
1号
開始ページ 1
終了ページ 8
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002313764
JaLCDOI 10.18926/fest/11592
タイトル(別表記) The Aesthetics in The Blue Light and German Mountain Films
フルテキストURL 003_179_191.pdf
著者 神崎 謙一|
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1998-01-14
3巻
1号
開始ページ 179
終了ページ 191
ISSN 1341-9099
言語 日本語
論文のバージョン publisher
NAID 120002313619
JaLCDOI 10.18926/fest/11591
タイトル(別表記) Evaluation of Liquefaction Resistance by In-situ Testing and Its Application to Reliability Design
フルテキストURL 005_145_151.pdf
著者 西村 伸一| 清水 英良| 藤井 弘章| 島田 清|
抄録 A calculation method of probability of liquefaction is proposed in this paper. The spatial variability of soil parameters for the dynamic shear strength, i.e., N-values, median grain size, fines contents, and the statistical characteristics of the earthquake frequency are considered in the analysis. The standard penetration test (SPT) is convenient to estimate the spatial variability of the dynamic shear strength and mainly used in this study. Furthermore the determination of dynamic shear strength based on Swedish weight Sounding test also introduced here, because it is the simpler test than SPT. While the statistical model of the earthquake frequency is determined based on the record of historical earthquakes. Using this method the probability of liquefaction is calculated. The sand compaction pile method is considered for the ground improvement against the liquefaction. Finally, the relationship between the sand replacement rate and the probability of liquefaction is clarified.
キーワード probability of liquefaction reliability design spatial variability of soil parameters statistical model of earthquake frequency dynamic shear strength
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2000-02-29
5巻
1号
開始ページ 145
終了ページ 151
ISSN 1341-9099
言語 日本語
論文のバージョン publisher
NAID 120002314022
JaLCDOI 10.18926/fest/11590
タイトル(別表記) ON FEUDALISM - Definition, Complex, Civilization -
フルテキストURL 003_171_178.pdf
著者 外村 直彦|
出版物タイトル 岡山大学環境理工学部研究報告
発行日 1998-01-14
3巻
1号
開始ページ 171
終了ページ 178
ISSN 1341-9099
言語 日本語
論文のバージョン publisher
NAID 120002313327
JaLCDOI 10.18926/fest/11589
タイトル(別表記) Distribution and Age Structure of Population in Tottori City
フルテキストURL 005_121_144.pdf
著者 市南 文一|
抄録 This study examined population data on the quarters or sub-areas in Tottori city in 1960 and 1995. First, the distributions of population data in both years were drawn, then the population changes and the rates were explained. While large increaces and high growth rates were scattered in the suburbs of the city, large depopulation and high decreace rates were clustered in the old core in the built-up areas and rural areas in the hilly and mountainous areas. Second, the rates of population under 15 years old and the rates of population over 65 years old were analyzed. Finally, the age structure of population was examined with 10 samples of the quarters or sub-areas in anticipation.
キーワード Tottori city Population Distribution Age structure City planning
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2000-02-29
5巻
1号
開始ページ 121
終了ページ 144
ISSN 1341-9099
言語 日本語
論文のバージョン publisher
NAID 120002313744