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JaLCDOI 10.18926/fest/12829
FullText URL 13_063_066.pdf
Author Akudago Apambilla John| Nishigaki, Makoto| Chegbeleh Larry Pax| Alim Md. Abdul| Komatsu, Mitsuru| Kumamaru, Koji|
Abstract Filters are essential in the design of embankments/dams, drains and wells for water and oil supplies. As a result of these functions, filter use is increasing. In order to use the required filter, various empirical relations have been given based on mathematical and field experience. However, these guidelines have not worked to perfection considering the fact that clogging within the filter face is a serious challenge. A short review on filter design criteria is given in this script coupled with a numerical formulation to propose the design limits.
Keywords filter particle clogging filter classification numerical model equation force of attraction
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 63
End Page 66
ISSN 1341-9099
language English
File Version publisher
NAID 120002304909
JaLCDOI 10.18926/fest/12828
FullText URL 13_057_062.pdf
Author Liu Ying| Sumida, Shinya| Ceric Majda| Yamamoto, Kazuhiro| Watanabe, Masaji|
Abstract Numerical techniques to simulate tsunami waves are described, and numerical results are introduced. A finite difference method is applied to shallow water equations to analize the propagation of tsunami wave. Numerical results to simulate a tsunami wave generated on the Nankai Trough are introduced.
Keywords tsunami finite difference staggered grid leapfrog
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 57
End Page 62
ISSN 1341-9099
language English
File Version publisher
NAID 120002304776
JaLCDOI 10.18926/fest/12827
FullText URL 13_051_056.pdf
Author Sanghoon Han| Ishioka, Fumio| Kurihara, Koji|
Abstract Echelon analysis (Myers et al., 1997) is a method to investigate the phase-structure of spatial data systematically and objectively. This method is also useful to prospect the areas of interest in regional monitoring of a surface variable. The spatial scan statistic (Kulldorff, 1997) is a method of detection and inference for the zones of significantly high or low rates based on the likelihood ratio. These zones are called hotspots. The purpose of this paper is to detect the hotspot area for spatial data using echelon. We perform echelon analysis for Korea earthquake data. We use ESRI’s ArcGIS that is geographical information system (GIS) software to make the meshed areas and get contiguity information of these areas. With this contiguity information on the meshed areas, we detect the hotspot area using echelon analysis and spatial scan statistics. In addition, we compare with the result of analysis based on the total of number of times simply and the seismic wave energy.
Keywords Hotspot Echelon analysis Spatial scan statistics Seismic Wave Energy
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 51
End Page 56
ISSN 1341-9099
language English
File Version publisher
NAID 120002304882
JaLCDOI 10.18926/fest/12824
Title Alternative Estimate of the posted land price in Okayama city and its visualizing system
FullText URL 13_043_049.pdf
Author Nakao, Kazuo| Tarumi, Tomoyuki|
Abstract The posted land price is a decrared land price from Land Appraisal Committee, and current market price is selling price of the market. In this paper, we investigate the methods to estimate land price from the posted land price in Okayama city, and create the visualizing system of the price on.
Keywords Land price Google maps GIS Ajax
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 43
End Page 49
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002304790
JaLCDOI 10.18926/fest/12820
Title Alternative Survey Study of Resident Awareness on Waste Final Disposal Site
FullText URL 13_035_042.pdf
Author Na, Myungjin| Ono, Yusaku| Ono, Yoshiro| Kurihara, Koji|
Abstract As construction of final waste disposal site is essential recently, a problem where we should build it becomes important issue. However, public opposition occurs for the construction because the final waste disposal site has negative image such as pollution of various kinds, increase of traffic volume and noise by truck and bulldozer, and aggravation of living conditions. Public opposition is the most critical problem in constructing final waste disposal site. The source of public opposition has been characterized as NIMBY or not-in-my-yard. This paper presents a survey of the resident awareness on final waste disposal site, and attempts to find factors which affect the public opposition using logistic regression analysis and CART(classification and regression tree).
Keywords final waste disposal site resident awareness public opposition logistic regression analysis CART(classification and regression tree)
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 35
End Page 42
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002304860
JaLCDOI 10.18926/fest/12819
FullText URL 13_023_033.pdf
Author Zenihana, Tomohiro| Hisakane, Naoto| Morimoto, Tomoko| Ishikawa, Hirofumi|
Abstract We carried out simulations of various scenarios for bioterrorist attacks using smallpox occurring in a virtual area set up on the basis of the census of Okayama-city, Japan, which predict the effect of control strategies against bioterrorism and the loss scale. On simulating a smallpox epidemic, we followed the method of the Individual Based Model stochastically, which can treat the population in the virtual area as individuals. Individuals have personal information, behavior patterns, and interactions among social groups. We took into consideration the influence of residual immunity due to past vaccination. We considered Traced Vaccination (TV) and Mass Vaccination (MV) strategies against bioterrorism. We investigated the effect of TV and MV strategies on the suppression of smallpox epidemics. Consequently, the TV strategy was found to have higher effectiveness than the MV strategy.
Keywords smallpox bioterrorism Individual Based Model Traced Vaccination Mass Vaccination
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 23
End Page 33
ISSN 1341-9099
language English
File Version publisher
NAID 120002304844
JaLCDOI 10.18926/fest/12818
Title Alternative Spatial analysis of Kawaguchi City crime data
FullText URL 13_017_022.pdf
Author Ohshimo, Yuki| Tarumi, Tomoyuki|
Abstract In this paper, we built some models of the spatial data, and evaluate those, using the crime data of Kawaguchi city, Saitama prefecture in Japan. Compute the Moran’I statistics of five crime data related to thefts in the city, the value of sneakthief take the aggregation. So, we pay attention to the sneak, and make a model to estimate the incidence of the events. As a regression, we select the old-age index among regional indexes. Applying a simple regression(SR), a spatial autoregressive model(SAR), a geographically weighted regression(GWR) , we evaluate these models. In GWR model, it is interesting that there are some sections in which the sign of the coefficient takes the opposite versus SR and SAR models. So, stratifying the data by the sign of it, we investigate to data precisely.
Keywords crime data Kawaguchi city spatial analysis spatial autoregressive model geographically weighted regression
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 17
End Page 22
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002304883
JaLCDOI 10.18926/fest/12816
Title Alternative Statistical modeling for analysis of malaria epidemic behavior at Ishigaki Island
FullText URL 13_007_015.pdf
Author Ueki, Masao| Nakagawa, Yuuki| Fueda, Kaoru| Ishikawa, Hirofumi|
Abstract It is necessary to consider a stochastic variability in modeling malaria epidemic behavior since the malaria infection cycle essentially depends on stochastic elements. For this requirement, we need to construct an appropriate statistical model from available data in advance. In this report, we provide some statistical models for the analysis of malaria epidemic behavior at Ishigaki Island. These models can be used for recurrence of past malaria epidemic and prediction of future malaria epidemic at Ishigaki Island.
Keywords Anopheles minimus, generalized liner model Ishigaki Island malaria epidemic behavior prediction stochastic model
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 7
End Page 15
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002304876
JaLCDOI 10.18926/fest/12814
FullText URL 13_001_005.pdf
Author Chegbeleh Larry Pax| Nishigaki, Makoto| Akudago John Apambilla| Alim Md. Abdul| Komatsu, Mitsuru|
Abstract In an effort to secure the comfort of all aspect of life and security through electricity production, research, nuclear weapons production and medical uses, radioactive waste is being generated throughout the world as a result. Without pro – active management and protection, the hazardous nature of radioactive materials can pose serious threats to human health and the environment. A waste containment or disposal facility is required to isolate the waste from man and the biosphere to avoid any undue radiation exposure. Deep geological repository or disposal facility is considered as an effective way to isolate high level radioactive waste, HLW from the human environment, for which a multi – barrier system plays a very significant role. In this paper, literature collection was carried out, aimed to overview the present knowledge about the concepts of repository for HLW and to identify technologies that are currently available in the nuclear industry worldwide and the current state of barrier technologies for hazardous waste sites.
Keywords repository bentonite radioactive waste swelling buffer and backfill materials
Publication Title 岡山大学環境理工学部研究報告
Published Date 2008-03
Volume volume13
Issue issue1
Start Page 1
End Page 5
ISSN 1341-9099
language English
File Version publisher
NAID 120002304817
Author 岡山大学農学部附属農場|
Published Date 2001-03-30
Publication Title 岡山大学農学部農場報告
Volume volume23
Content Type Others
JaLCDOI 10.18926/fest/11658
FullText URL 001_311_320.pdf
Author Noll Wulf|
Abstract 1.) Vorbemerkung 2.) Uber das Verhaltnis von Schrift und Geschichte 3.) Widerstreit zwischen alphanumerischen und digitalen Codes 4.) Anforderungen an den Stil: ≫Ballungen≪versus≫Wattebausche der Software≪ 5.) Digitaler Schein, virtuelle und alternative Realitaten 6.) Zur Kritik des Flusserschen Ansatzes
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 311
End Page 320
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002314146
JaLCDOI 10.18926/fest/11656
FullText URL 001_289_310.pdf
Author Kawabata, Atsuhiro|
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 289
End Page 310
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313466
JaLCDOI 10.18926/fest/11655
FullText URL 001_277_288.pdf
Author Tonomura, Naohiko|
Abstract This paper is an attempt to establish an objective criterion for civilizations, in order to treat them impartially and give them a fair assessment. First, theories up to the present about civilizations including those of Spengler and Toynbee are introduced. Second, the criterion presented by Bagby to distinguish major civilizations and peripheral civilizations are examined and proved to be subjective. Then the author proposes as an objective criterion for big civilizations just the pattern of succeeding four stages with the span of 400~500 years each. Big civilizations meeting this requirement which total eight or nine are divided into two types according to the difference of their nature. Lastly is shown how four puzzles of world history that have hitherto caused a lot of disputes (feudalism, absolute power of royalty, capitalism and modernization) can be solved through the recognition of these big civilizations.
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 277
End Page 288
ISSN 1341-9099
language English
File Version publisher
NAID 120002313986
JaLCDOI 10.18926/fest/11654
Title Alternative The Thing That Fills the Hollow Cave: The Image of 'Hollow' in the Love Poems of Thomas Hardy
FullText URL 001_263_276.pdf
Author Kanzaki, Ken-ichi|
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 263
End Page 276
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313873
JaLCDOI 10.18926/fest/11652
Title Alternative Features of Australian Spoken English
FullText URL 001_247_261.pdf
Author Kashiwase, Shogo|
Abstract English is spoken in many countries, but the Australian brand is unmistakable. 'G' day, mate' will be curious to non-Australian people, but it will be delightful to the ears of Aussie. In this paper, a piece of (1) 'Australian Daily Spoken English' is displayed as a sample of Australian daily spoken language. A brief list of (2) 'Food Terms' is displayed to show the general features of Australian spoken English. The brief lists of (3) 'Shorten Forms', (4) 'Rhyming Slangs' and (5) 'Common Aussie Expressions' are displayed to show the features of Aussie English.
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 247
End Page 261
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313399
JaLCDOI 10.18926/fest/11651
Title Alternative Deregulation and Economic Promotion of Intermount Region
FullText URL 001_229_246.pdf
Author Ishihara, Terutoshi|
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 229
End Page 246
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313367
JaLCDOI 10.18926/fest/11649
Title Alternative Morphology Control of Aromatic Polymers during Polymerization
FullText URL 001_221_227.pdf
Author Yamashita, Yuhiko| Kimura, Kunio| Tsugita, Hiroshi| Yokoyama, Fumiyoshi|
Abstract Morphology and formation mechanism of poly (4'-oxy-4-biphenylcarbonyl) (POBP) crystals obtained by solution polymerization were firstly treated. It was concluded that the formation mechanism of the bundlelike aggregates of fibrillar crystals in POBP was fundamentally simillar to that in POB whiskers. Secondly the copolymerization effects of m-acetoxybenzoic acid and 4-(4-acetoxyphenyl) benzoic acid on the morphology of POB whiskers were studied. The experimental results strongly supported our proposal for the formation mechanism of whiskers which was consisted of crystallization of oligomers with a critical length as lamellae from solution and solid state polymerizationof oligomers between lamellae. Finally, the formation mechanism of poly (p-oxycinnamoyl) spherical products during solution polymerization was treated. The formation of these spherical products could be understood by overlapped phase diagram of melting depression curve and consolute curve of oligomers-solvent system.
Keywords morphology control aromatic polymers phase separation polymer whisker polymer beads rigid rod polymers
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 221
End Page 227
ISSN 1341-9099
language Japanese
File Version publisher
NAID 120002313893
JaLCDOI 10.18926/fest/11647
FullText URL 001_211_219.pdf
Author Kitamura, Yoshiro| Ohta, Tomoyuki|
Abstract The drop formation in immiscible liquid-liquid systems under mass transfer conditions was experimentally investigated. To know the exact effact effect of mass transfer on drop sizes, the decrease of interfacial tensions due to the presence of solutes has to be evaluate. Interfacial tensions of liquid pairs were measured with a Wilhelmy method as a function of the relative amounts at which both the solution and the solvent were mutually saturated. The interfacial tensions between the liquid pairs mutually saturated at on equal amount were found to be appropriate for the prediction of the drop formation accompanying mass transfer.
Keywords Interfacial tension Drop size Extraction Mass transfer
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 211
End Page 219
ISSN 1341-9099
language English
File Version publisher
NAID 120002313573
JaLCDOI 10.18926/fest/11646
FullText URL 001_205_210.pdf
Author Tsuboi, Sadao| Ono, Shin-ichiro| Utaka, Masanori|
Abstract Chiral reduction of 2-oxosuccinic acid esters with fermenting bakers' yeast gave (S)-(-)- malic acid esters in 34-54% isolated yield with 85-100% ee.
Keywords optically active malic acid balers' yeast asymmetric reduction α-ketoester.
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 205
End Page 210
ISSN 1341-9099
language English
File Version publisher
NAID 120002313572
JaLCDOI 10.18926/fest/11645
Title Alternative Selective reduction of nitrogen oxide with propylene on alumina-zirconia prepared from Al chelate compound and Zr alkoxide
FullText URL 001_199_204.pdf
Author Kawabata, Koji| Yoshimatsu, Hideyuki| Yabuki, Tatsumi| Osaka, Akiyoshi| Miura, Yoshinari|
Abstract An alumina-zirconia (AZ) composite powder was prepared by thermal decomposition of the organic precursors, which were synthesized from ethyl acetoacetate aluminium diisopropylate and zirconium n-butoxide. Specific surface area of AZ was higher than that of alumina-zirconia (ALK) prepared from aluminium sec-butoxide and zirconium nbutoxide. True density of AZ was lower than that of ALK. Selective reduction of nitrogen oxide with propylene in oxygen-rich atmosphere on AZ was superior to that on ALK.
Keywords Al chelate compound Zr alkoxide alumina-zirconia specific surface area true density selective reduction of nitrogen oxide
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 199
End Page 204
ISSN 1341-9099
language Japanese
File Version publisher
NAID 110002291536