result 18213 件
| JaLCDOI | 10.18926/fest/11534 |
|---|---|
| FullText URL | 007_099_106.pdf |
| Author | Kamboh Maqsood Ahmed| Oki, Yoko| Adachi, Tadashi| |
| Abstract | A few wheat varieties including two Japanese wheat varieties were evaluated for their salt tolerance at seeding stage, their behavior to increasing salinity levels and role of Na exclusion capacity in salt tolerance mechanisms. The wheat varieties were grown in nutrient solution and subjected to 0 (control), 25,75 and 125 mM NaCl salinity levels for 7 days. Although the shoot growth was reduced while Na contents were increased progressively with increasing salinity in all varieties, the varieties were quite different in their response. Salt tolerant va rieties maintained less reduction in their root and shoot growth and better water relations in their shoots than salt sensitive varieties under saline conditions. The wheat varieties were quite different in their Na exclusion capacity. Poor growth in salt sensitive varieties might be due to higher accumulation of Na in their shoots resulting from low Na exclusion capacity of roots, higher Na transport to shoot and/or inferior compartmentation capability. |
| Keywords | growth and mineral composition increasing salinity Na exclusion capacity salt tolerance wheat varieties |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 99 |
| End Page | 106 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313704 |
| JaLCDOI | 10.18926/fest/11533 |
|---|---|
| Title Alternative | Management of Rural Region in Association with Its Regionality of the Western Part of Tottori Prefecture |
| FullText URL | 006_053_065.pdf |
| Author | Ichiminami, Fumikazu| |
| Abstract | In this paper the brief history, the status quo and the problem of regional management in association with its regionality were examined in Yodoe town and Mizokuchi town in the western part of Tottori Prefecture. These areas have the focus of Yonago city. Mt. Daisen and Kaike-spring have been well-known, and Tottori Flower Park recently attracts many tourists. However, agriculture also flourishes remarkably in these areas. Although Yodoe town has been celebrated for the waters and traditional umbrella, the town management recently makes the most of acorn and ancient tombs, giving emphasis to international relations and history. In Mizokuchi town the oldest legend of ogre has been investigated intently and the town management in connection with it has been proceeded. As these plannings use their histories and features peculiar to the area as a management concept, they have high originality. As a future problem, it may be necessary to built up a closer connection and coordinate each regional functions within the extensive areas. |
| Keywords | The Western Part of Tottori Prefecture Rural Area Regionality Regional Coordination of Functions |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2001-02-28 |
| Volume | volume6 |
| Issue | issue1 |
| Start Page | 53 |
| End Page | 65 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002314021 |
| JaLCDOI | 10.18926/fest/11532 |
|---|---|
| FullText URL | 007_091_098.pdf |
| Author | Kamboh Maqsood Ahmed| Oki, Yoko| Adachi, Tadashi| |
| Abstract | To evaluate hypoxic-salinity tolerance in wheat varieties, three Japanese varieties (Nourin-61, Chikugo Izumi and Shirasagi Komugi, relatively salt tolerant) and one Pakistani variety (Blue Silver, relatively salt sensitive) were grown under control, hypoxia, saline and hypoxic-saline conditions. The results suggested that relatively hypoxia and salt tolerant variety Nourin-61 was capable of producing the highest relative shoot yield under combined stress conditions. On the other hand, relatively sensitive variety to both hypoxia and salinity conditions, could not withstand harmful effects of combined stress. A more close correlation of plant growth characters between salinity and hypoxic-salinity than hypoxia and hypoxic-salinity indicated that varieties with higher salt tolerance would suffer less than varieties with higher hypoxia tolerance under combined stress conditions. And the balance of Na/K ratio in shoot tissues seems to be the major evaluation factor as the tolerant variety when salinity and hypoxia stress occur together. |
| Keywords | hypoxia growth and ionic composition salinity salt tolerance wheat varieties |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 91 |
| End Page | 98 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313980 |
| JaLCDOI | 10.18926/fest/11531 |
|---|---|
| FullText URL | 006_047_052.pdf |
| Author | Komatsu, Mitsuru| Nishigaki, Makoto| |
| Abstract | For evaluating subsurface contamination, sampling method (boring) is commonly used, but this method cannot monitor the change of in-situ contamination and concentration with respect to time. The purpose of this study is to develop a measuring system for subsurface contamination in which a so-called FDR-V system (Frequency Domain Reflectometry with Vector network analyzer) was employed to measure the salinity contaminant. This FDR-V method is a coaxial probe method,which allows the measurement of the complex dielectric constant from 1GHz to 18GHz. The experimental study indicates the possibility in measuring both the salinity concentration and volumetric moisture content. |
| Keywords | Dielectric constant Subsurface Salinity concentration Volumetric moisture content |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2001-02-28 |
| Volume | volume6 |
| Issue | issue1 |
| Start Page | 47 |
| End Page | 52 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313354 |
| JaLCDOI | 10.18926/fest/11530 |
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| Title Alternative | Tendency of Main Sightseeing-areas based on the Number of Tourists for Some 30 Years in Okayama Prefecture |
| FullText URL | 007_075_089.pdf |
| Author | Ichiminami, Fumikazu| |
| Abstract | In this paper, the tendency of the number of tourists was examined for some 30 years at several sightseeing-areas in Okayama prefecture. Recently, large-scale parks on well-known theme have been built in Japan, the management strategy of sightseeing-spots is becoming harder. However, it is important for us to understand the peculiarity of local sightseeing-areas and advertise the information on unsophisticated nature and culture linked with surrounding ecological system consistently. Sustainable management of sightseeing-areas is affected and sustained by the thought and life-style of peoples living in the adjacent areas. |
| Keywords | Tourists Sightseeing-areas Sustainable Management Okayama Prefecture |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 75 |
| End Page | 89 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313698 |
| JaLCDOI | 10.18926/fest/11529 |
|---|---|
| FullText URL | 006_041_045.pdf |
| Author | Adam Ihab| Sakata, Kenji| Ayano, Toshiki| |
| Abstract | Inclusion of aggregates leads to a reduction in drying shrinkage of cement paste. This is due to the elastic deformation of the aggregates that partly restrains the shrinkage deformation of cement paste. Hence, concrete with higher aggregate content exhibits smaller shrinkage. In addition, concrete with aggregates of higher modulus of elasticity or of rougher surfaces is more resistant to shrinkage process. In this paper the effects of the type of coarse aggregate on the shrinkage of normal and high-strength concretes are investigated. Two different types of crushed stone were used as coarse aggregates to produce the concrete mixtures used in this study. For each coarse aggregate type, two normal-strength concrete (NSC) mixtures and two high-strength concrete (HSC) mixtures were prepared. The 28-day compressive strength values of NSC mixtures were about 35 and 50 MPa, while those of HSC mixtures were 70 and 100 MPa, respectively. All shrinkage specimens were cured in water for 14 days after casting, then exposed to drying under the conditions of constant temperature (20℃) and relative humidity (60%). It has been shown that the type of the coarse aggregate influences shrinkage behaviour of both normal and high-strength concretes. |
| Keywords | Shrinkage Coarse aggregate High-Strength Concrete Silica Fume |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2001-02-28 |
| Volume | volume6 |
| Issue | issue1 |
| Start Page | 41 |
| End Page | 45 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313637 |
| JaLCDOI | 10.18926/fest/11528 |
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| Title Alternative | Damage factors analysis for small embankment dams due to the Hyogoken-Nambu earthquake special to Hokudan Town |
| FullText URL | 007_055_074.pdf |
| Author | Fujii, Hiroaki| Kunimasa, Kana| Nanba, Akiyo| Yokomizo, Takayuki| Nishimura, Shin-ichi| Shimada, Kiyoshi| Hori, Toshio| Nishiyama, Tatsuro| Wakitani, Yoshiaki| |
| Abstract | This study was performed to clarify which factors affected damage to take-ike (small embankment dams for irrigation in Japanese) of Hokudan Town on Awaji Island in western Japan due to Hyogoken-Nambu earthquake. Multivariate and ordinary statistical analysis were carried out using documentary data (181 damaged and 328 undamaged dams), and ordinary one was done for the results investigated in situ. The model for the multivariate analysis was created with 13 items and 94 categories for 4 groups (Location, Geology Structure, and History of Dam). As a result, the factors causing to damage for dam are (1) the nearest fault (Nojima, Mizukoshi and D2), (2) embankment volume (the larger the more), (3) angle of crest axis to epicenter (diagonal and normal), (4) distance to the nearest fault (less than 500 m), (5) distance to the epicenter (8 to 14 km which almost agree to the location of seismic intensity 7 JMA), (6) play view of dam axis (3 or 4 axes), (7) angle of crest axis to nearest fault (diagonal and normal), (8) elevation of dam site (over 100 m), (9) surface geology of dam site (non-cohesive soil), (10) era of construction (prior to 1891), and (11) soil properties of embankment (constructed of sand, smaller penetration resistance). |
| Keywords | Earth dam earthquake damage site investigation statistical analysis case study |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 55 |
| End Page | 74 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002314039 |
| JaLCDOI | 10.18926/fest/11527 |
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| Title Alternative | Random Bit Strings and Antigenic Diversity ― Simulations |
| FullText URL | 006_035_039.pdf |
| Author | Sasaki, Toru| |
| Abstract | Transition of random bit strings is simulated by using pseudorandom numbers. Bit strings are considered as RNA of HIV virus here. Transition of random bit strings represents that of antigenic deversity. |
| Keywords | random bit string simulation of errors in RNA transcription antigenic diversity |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2001-02-28 |
| Volume | volume6 |
| Issue | issue1 |
| Start Page | 35 |
| End Page | 39 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313453 |
| JaLCDOI | 10.18926/fest/11526 |
|---|---|
| FullText URL | 006_025_034.pdf |
| Author | Yamanishi, Yoshihiro| Tanaka, Yutaka| |
| Abstract | In functional principal component analysis (PCA), we treat the data that consist of functions not of vectors (Ramsay and Silverman, 1997). It is an attractive methodology, because we often meet the cases where we wish to apply PCA to such data. But, to make this method widely useful, it is desirable to study advantages and disadvantages in actual applications. As alternatives to functional PCA, we may consider multivariate PCA applied to 1) original observation data, 2) sampled functional data with appropriate intervals, and 3) coefficients of basis function expansion. Theoretical and numerical comparison is made among ordinary functional PCA, penalized functional PCA and the above three multivariate PCA. |
| Keywords | Functional data Multivariate data Principal component analysis Eigenvalue Eigenvecotor |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2001-02-28 |
| Volume | volume6 |
| Issue | issue1 |
| Start Page | 25 |
| End Page | 34 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313939 |
| JaLCDOI | 10.18926/fest/11525 |
|---|---|
| Title Alternative | A Study on Influence of Current Velocity on Phytoplankton |
| FullText URL | 007_045_053.pdf |
| Author | Li, Jinsong| Kawara, Osami| Ono, Yosiro| |
| Abstract | The main problems caused by eutrophication result from the increase of phytoplankton. Therefore, controlling the increase of phytoplankton is the most important. In this study, we discuss the influence of current velocity on the growth of phytoplankton based on the field experiments and laboratory experiments. The laboratory experiments for the influence of current velocity on the growth have been conducted using circular channels, and the field experiments were conducted using a shallow pond. The results of the experiments show current velocity inhibits the growth of phytoplankton. |
| Keywords | Eutrophication growth of phytoplankton influence of current velocity experiment |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 45 |
| End Page | 53 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313529 |
| JaLCDOI | 10.18926/fest/11523 |
|---|---|
| FullText URL | 007_039_044.pdf |
| Author | Watanabe, Masaji| |
| Abstract | We present some results of a finite element analysis for an unsteady flow in Kojima Lake. We also present an experimental result. The global positioning system was utilized in the experiment in order to record the temporal and the spatial data of a float traveling with the driving force of the fluid resistance. The spatial and temporal data were recorded to examine their correspondence with analytical results. |
| Keywords | lake flow numerical simulation finite element method global positioning system |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 39 |
| End Page | 44 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313386 |
| JaLCDOI | 10.18926/fest/11522 |
|---|---|
| FullText URL | 006_011_015.pdf |
| Author | Watanabe, Masaji| Kunisada, Shigeyuki| |
| Abstract | The global positioning system is utilized in lake flow analysis to facilitate experimental evaluation for numerical results of a lake flow simulation. In our lake flow experiment a float travels on the lake surface receiving the fluid resistance due to lake flow, while a global positioning system receiver keeps track of its position. A momentum equation is derived when the product of the float mass and its acceleration is set equal to the driving force. The temporal change in the position of the float can be simulated when numerical solutions of lake flow equations are given. A comparison of numerical results and experimental data leads to an evaluation of the numerical simulation of lake flow. |
| Keywords | lake flow numerical simulation GPS-float finite element method |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2001-02-28 |
| Volume | volume6 |
| Issue | issue1 |
| Start Page | 11 |
| End Page | 15 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313583 |
| JaLCDOI | 10.18926/fest/11521 |
|---|---|
| FullText URL | 007_031_038.pdf |
| Author | Zhang, Fanghong| Tanaka, Yutaka| |
| Abstract | Relationship has been discussed by Tanaka and Zhang(1999) between the sensitivity analyses based on influence functions and on Cook's local influence, and it has been shown that equivalent results are obtained under general conditions by these analyses in statistical modeling without/with equality constraints. However, a condition implicitly assumed in the proof in Tanaka and Zhang(1999) in the case with equality constraints does not necessarily hold. The present paper gives a complete proof without assuming the condition. Also a formula for the normal curvature is derived for the convenience of practical computation. |
| Keywords | Local influence influence function equality constraints |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 31 |
| End Page | 38 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313336 |
| Author | Hasegawa, Koichi| |
|---|---|
| Published Date | 2007-03-23 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | Chikamori, Ken-ichi| |
|---|---|
| Published Date | 2007-03-23 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| Author | Uehara, Shinya| |
|---|---|
| Published Date | 2007-03-23 |
| Publication Title | |
| Content Type | Thesis or Dissertation |
| JaLCDOI | 10.18926/fest/11516 |
|---|---|
| FullText URL | 006_001_010.pdf |
| Author | Tomita, Makoto| Otake, Masanori| |
| Abstract | In many epidemiological and medical studies, a number of cancer motralities in catagorical classification may be considered as having Poisson distribution with person-years at risk depending upon time. The cancer mortalities have been evaluated by additive or multiplicative models with regard to background and excess risks based on several covariances such as sex, age at the time of bombings, time at exposure, or ionizing radiation, cigarette smoking habits, duration of smoking habits, etc. An interest herein to examine an additive, synergistic,or antagonistic relationship between radiation exposures and cigarette smoking habits for cancer mortalities. The results revealed a highly significant antagonistic influence for cancer mortalities from all nonhematologic findings, lung and respiratory system with negative interaction between radiation exposures and cigarette smoking amounts. |
| Keywords | Excess relative risks cancer mortalities antagonistic effects prospective studies atomic bomb survivors |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2001-02-28 |
| Volume | volume6 |
| Issue | issue1 |
| Start Page | 1 |
| End Page | 10 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313814 |
| JaLCDOI | 10.18926/fest/11515 |
|---|---|
| Title Alternative | Stability analysis of mathematical models of infectious disease |
| FullText URL | 007_017_021.pdf |
| Author | Murase, Akiko| Sasaki, Toru| Kajiwara, Tsuyoshi| |
| Abstract | Dynamics of infectious disease in vivo is described by coupled differential equations. Stability analysis of the complicated systems is difficult without computer calculation, while stability analysis is, in general, important to investigate qualitative behaviour of models. Liu analyzes stability of systems describing HIV dynamics in vivo with a symbolic calculation software. The same method is used for stability analysis of a mathematical model of malaria. |
| Keywords | mathematical model infectious disease dynamics in vivo stability analysis symbolic calculation |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2002-03-22 |
| Volume | volume7 |
| Issue | issue1 |
| Start Page | 17 |
| End Page | 21 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313783 |
| JaLCDOI | 10.18926/fest/11514 |
|---|---|
| Title Alternative | Preparation of Biodegradable Polymer Microcapsules Enclosing Anti-mite Agent |
| FullText URL | 008_103_106.pdf |
| Author | Minobe, Kouichi| Yoshizawa, Hidekazu| Kitamura, Yoshiro| |
| Abstract | Many kinds of mite was caused by allergy and sick house syndrome, so it has become one of the social problems. Farnesyl acetone is one of the most potent anti-mite agent. However the vapor pressure of farnesyl acetone is high even at room temperature. This indicates the anti-mite effect has not been sustained even though the agent has strong anti-mite effect. In this study, we attempted to prepare polylactide microcapsule with farnesyl acetone for the purpose of sustainable dosage form of anti-mite agent. Microcapsule was prepared by solvent evaporation, which was a method of microencapsulation. The effects of preparation conditions on the enclosing efficiency, the release of microcapsule and anti-mite effect of microcapsule were investigated. |
| Keywords | farnesyl acetone anti-mite effect polylactide microcapsule solvent evaporation |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2003-03 |
| Volume | volume8 |
| Issue | issue1 |
| Start Page | 103 |
| End Page | 106 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002314003 |
| JaLCDOI | 10.18926/fest/11513 |
|---|---|
| Title Alternative | Decontamination of Waste-water by Metal Phthalocyanines Encapsulated in Polymeric Microcapsules |
| FullText URL | 008_097_101.pdf |
| Author | Takami, Koji| Yoshizawa, Hidekazu| Sakata, Isao| Kitamura, Yoshiro| |
| Abstract | Polymeric microcapsules encapsulating iron phthalocyanine (Fe-Pc) and zinc phthalocyanine (Zn-Pc) were successfully prepared in this study. Absorption spectra of polymeric microcapsules encapsulating metal phthalocyanines were measured in visible light range. It was expected from the results that the polymeric microcapsules encapsulating metal phthalocyanines showed high photocatalytic activity upon irradiation with visible light such as sunlight. The catalytic and phtocatalytic activities of encapsulated Fe-Pc and Zn-Pc were investigated in the decomposition of methylene blue in water. The encapsulatedd Fe-Pc with H(2)O(2) exhibited a high catalytic activity. Methlene blue was efficiently decomposed by interaction of Fe-Pc with H(2)O(2). |
| Keywords | microcapsule decomposition metal phthalocyanine waste-water treatment suspension polymerizatio |
| Publication Title | 岡山大学環境理工学部研究報告 |
| Published Date | 2003-03 |
| Volume | volume8 |
| Issue | issue1 |
| Start Page | 97 |
| End Page | 101 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313830 |
