JaLCDOI 10.18926/fest/11605
FullText URL 002_079_088.pdf
Author Taniguchi, Takeo|
Abstract 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.
Keywords Delaunay Triangulation 3D Configuration TIN CAD Computational Geometry
Publication Title 岡山大学環境理工学部研究報告
Published Date 1997-01-10
Volume volume2
Issue issue1
Start Page 79
End Page 88
ISSN 1341-9099
language English
File Version publisher
NAID 120002313817
JaLCDOI 10.18926/fest/11604
FullText URL 001_021_026.pdf
Author Hora, Akihito|
Abstract 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.
Keywords random walk Markov chain
Publication Title 岡山大学環境理工学部研究報告
Published Date 1996-03
Volume volume1
Issue issue1
Start Page 21
End Page 26
ISSN 1341-9099
language English
File Version publisher
NAID 120002313549
JaLCDOI 10.18926/fest/11603
Title Alternative A Historical View on the Landscape in England -A Way toward Manlike Environment
FullText URL 002_059_078.pdf
Author Inouye, Hiroshi|
Abstract 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.
Publication Title 岡山大学環境理工学部研究報告
Published Date 1997-01-10
Volume volume2
Issue issue1
Start Page 59
End Page 78
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313742
JaLCDOI 10.18926/fest/11602
FullText URL 001_015_020.pdf
Author Nakajima, Atsushi|
Abstract 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.
Keywords Separable extension smash product module algebra and comodule algebra
Publication Title 岡山大学環境理工学部研究報告
Published Date 1996-03
Volume volume1
Issue issue1
Start Page 15
End Page 20
ISSN 1341-9099
language English
File Version publisher
NAID 120002313954
JaLCDOI 10.18926/fest/11601
FullText URL 001_001_013.pdf
Author Morimoto, Masaharu| Yanagihara, Mamoru|
Abstract 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.
Keywords GAP fixed point gap condition
Publication Title 岡山大学環境理工学部研究報告
Published Date 1996-03
Volume volume1
Issue issue1
Start Page 1
End Page 13
ISSN 1341-9099
language English
File Version publisher
NAID 120002313410
JaLCDOI 10.18926/fest/11600
Title Alternative Research on Prevention of Groundwater Flow Blockage by the Detour Permeation Method
FullText URL 002_033_050.pdf
Author Satoh, Tsuneo| Nishigaki, Makoto|
Abstract 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.
Publication Title 岡山大学環境理工学部研究報告
Published Date 1997-01-10
Volume volume2
Issue issue1
Start Page 33
End Page 50
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313670
JaLCDOI 10.18926/fest/11599
FullText URL 002_051_058.pdf
Author Kishida, Takumi| Watanabe, Keiichiro| Ohtaki, Eiji|
Abstract 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.
Publication Title 岡山大学環境理工学部研究報告
Published Date 1997-01-10
Volume volume2
Issue issue1
Start Page 51
End Page 58
ISSN 1341-9099
language English
File Version publisher
NAID 120002313348
JaLCDOI 10.18926/fest/11598
FullText URL 002_025_032.pdf
Author Nishigaki, Makoto| Schreck Martin|
Abstract 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.
Publication Title 岡山大学環境理工学部研究報告
Published Date 1997-01-10
Volume volume2
Issue issue1
Start Page 25
End Page 32
ISSN 1341-9099
language English
File Version publisher
NAID 120002313718
JaLCDOI 10.18926/fest/11597
Title Alternative Preparation of Monodispersed Hydrophilic Polymer Microspheres in Gel Permeation Chromatography
FullText URL 005_159_163.pdf
Author Yoshizawa, Hidekazu| Ikeda, Satoshi| Kitamura, Yoshiro| Hasegawa, Masadumi| Moriyama, Hiroyuki| Kawano, Yoshinobu| Hatate, Yasuo|
Abstract 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.
Keywords polymer microsphere monodispersed emulsion swelling method hydrophilic polymer gel permeation chromatography size-exclusive separation
Publication Title 岡山大学環境理工学部研究報告
Published Date 2000-02-29
Volume volume5
Issue issue1
Start Page 159
End Page 164
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313521
JaLCDOI 10.18926/fest/11596
FullText URL 002_019_024.pdf
Author Watanabe, Masaji|
Abstract 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.
Publication Title 岡山大学環境理工学部研究報告
Published Date 1997-01-10
Volume volume2
Issue issue1
Start Page 19
End Page 24
ISSN 1341-9099
language English
File Version publisher
NAID 120002313835
JaLCDOI 10.18926/fest/11595
FullText URL 002_009_017.pdf
Author Ishikawa, Hirofumi|
Abstract 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.
Publication Title 岡山大学環境理工学部研究報告
Published Date 1997-01-10
Volume volume2
Issue issue1
Start Page 9
End Page 17
ISSN 1341-9099
language English
File Version publisher
NAID 120002313960
JaLCDOI 10.18926/fest/11594
FullText URL 005_153_158.pdf
Author Ye, Xuan| Hayashi, Nobuyuki| Tsuboi, Sadao|
Abstract 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%).
Publication Title 岡山大学環境理工学部研究報告
Published Date 2000-02-29
Volume volume5
Issue issue1
Start Page 153
End Page 158
ISSN 1341-9099
language English
File Version publisher
NAID 120002313618
JaLCDOI 10.18926/fest/11593
FullText URL 002_001_008.pdf
Author Hora, Akihito|
Abstract 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.
Keywords cut-off phenomenon critical time diffusion Markov chain on a graph symmetry
Publication Title 岡山大学環境理工学部研究報告
Published Date 1997-01-10
Volume volume2
Issue issue1
Start Page 1
End Page 8
ISSN 1341-9099
language English
File Version publisher
NAID 120002313764
JaLCDOI 10.18926/fest/11592
Title Alternative The Aesthetics in The Blue Light and German Mountain Films
FullText URL 003_179_191.pdf
Author Kanzaki, Ken-ichi|
Publication Title 岡山大学環境理工学部研究報告
Published Date 1998-01-14
Volume volume3
Issue issue1
Start Page 179
End Page 191
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313619
JaLCDOI 10.18926/fest/11591
Title Alternative Evaluation of Liquefaction Resistance by In-situ Testing and Its Application to Reliability Design
FullText URL 005_145_151.pdf
Author Nishimura, Shin-ichi| Shimizu, Hideyoshi| Fujii, Hiroaki| Shimada, Kiyoshi|
Abstract 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.
Keywords probability of liquefaction reliability design spatial variability of soil parameters statistical model of earthquake frequency dynamic shear strength
Publication Title 岡山大学環境理工学部研究報告
Published Date 2000-02-29
Volume volume5
Issue issue1
Start Page 145
End Page 151
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002314022
JaLCDOI 10.18926/fest/11590
Title Alternative ON FEUDALISM - Definition, Complex, Civilization -
FullText URL 003_171_178.pdf
Author Tonomura, Naohiko|
Publication Title 岡山大学環境理工学部研究報告
Published Date 1998-01-14
Volume volume3
Issue issue1
Start Page 171
End Page 178
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313327
JaLCDOI 10.18926/fest/11589
Title Alternative Distribution and Age Structure of Population in Tottori City
FullText URL 005_121_144.pdf
Author Ichiminami, Fumikazu|
Abstract 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.
Keywords Tottori city Population Distribution Age structure City planning
Publication Title 岡山大学環境理工学部研究報告
Published Date 2000-02-29
Volume volume5
Issue issue1
Start Page 121
End Page 144
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313744
JaLCDOI 10.18926/fest/11588
Title Alternative Pronunciation of Ausutralian Spoken English
FullText URL 003_157_169.pdf
Author Kashiwase, Shogo|
Abstract The present paper deals with the Pronunciation of Australian Spoken English: (1) Samples of Popular Pronunciation of Australian Spoken English, (2) 3 Varieties of Australian Accent of Spoken English, (3) Social Attitudes towards 3 Varieties of Australian Accents,(4) Sociolinguistic Shift of Australian Pronunciation Practice, (5) Irregularities of Australian Pronunciation of Spoken English. The Characteristics of "General" and "Broad" Accents of Australian English.
Publication Title 岡山大学環境理工学部研究報告
Published Date 1998-01-14
Volume volume3
Issue issue1
Start Page 157
End Page 169
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313449
JaLCDOI 10.18926/fest/11581
FullText URL 005_113_119.pdf
Author Xie Guanmo| Taniguchi, Takeo| Chouw Nawawi|
Abstract Near source earthquakes can produce strong vertical ground motions with large amplitude and high frequency content. In this paper the axial ductility behavior of RC columns due to near source earthquakes is investigated. The column is simplified to a SDOF system that only describes vertical vibrations of a structural column. The gravity load effect is represented by a pre-load. An elasto-plastic model accounting for different stiffness and strength in tension and compression is used in the analysis. The ductility demand as well as pseudo acceleration spectra are evaluated. The investigation shows that strong vertical ground motions should be considered in seismic design. From the results of this investigation suggestions for a seismic design in case of near source earthquakes can be derived.
Keywords RC columns ductility demand near source earthquakes strong vertical ground motions pseudo acceleration spectra
Publication Title 岡山大学環境理工学部研究報告
Published Date 2000-02-29
Volume volume5
Issue issue1
Start Page 113
End Page 119
ISSN 1341-9099
language English
File Version publisher
NAID 120002313363
JaLCDOI 10.18926/11579
Title Alternative 気管支喘息患者末梢血好塩基球の抗ヒトIgEおよびカルシウムイオノフォァA23187に対する反応性について
FullText URL 061_016_022.pdf
Author Tanizaki, Yoshiro| Sudo, Michiyasu| Kitani, Hikaru| Kawauchi, Kazuhisa| Mifune, Takashi| Okuda, Hiroyuki| Komagoe, Haruki| Tada, Shinya| Takahashi, Kiyoshi| Kimura, Ikuro|
Abstract The release of histamine from basophils induced by anti-lgE and calcium ionophore A 23187 ( Cal) was examined in 27 patients with bronchial asthma and 7 healthy subjects, using a whole blood method. (1)The release of histamine induced by anti-IgE and CaI was significantly higher in atopic asthmatics than in non-atopic cases. (2) The histamine release with anti-lgE and CaI was significantly lower in cases with long-term steroid therapy compared to the release in cases without steroid therapy. (3) The release with anti-lgE and CaI was increased in cases with age of 0-39 years and in cases wpth age at onset of 0-39 years. (4) Anti-IgE induced release correlated to a certain extent with the release induced by CaI. These results show that basophil reactivity as expressed by histamine release changes under different conditions.
Keywords Histamine release (ヒスタミン遊離) Basophils (好塩基球) Anti-lgE (抗ヒトIgE) Calcium ionophore A 23187 (カルシウムイオノフォァA23187) Bronchial asthma (気管支喘息)
Publication Title 環境病態研報告
Published Date 1990-09
Volume volume61
Start Page 16
End Page 22
ISSN 0913-3771
language English
File Version publisher
NAID 120002313673