| JaLCDOI | 10.18926/fest/11546 |
|---|---|
| Title Alternative | A Case Study on How to Teach English at University Adopting TOEIC |
| FullText URL | 006_107_118.pdf |
| Author | Morokawa, Shigetake| Kanzaki, Ken-ichi| Ogino, Masaru| |
| Abstract | We tried an experiment to see whether or not it was possible to teach English considering the rising emphasis on TOEIC. Each of the three of us was in charge of five lessons out ot fifteen. One taught a section in listening in a language laboratory, another taught a section in grammer and vocabulary, the third taught a section in reading. There was no exam at the end of the semester, but mini-TOEIC tests were administered, and taking the TOEIC was mandatory. Students were evaluated on both their mini-tests and their TOEIC scores. Student evaluations reflected a positive attitude toward the course. Most students favored the standard of TOEIC as a test of course evaluation. Although we realize there are aspects to be improved (i.e., students' listening ability, class-time efficiency), we should continue to develop English ability focusing on the internationally established medium, TOEIC. |
| Keywords | TESOL at university teaching English adopting TOEIC team teaching experimental program |
| 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 | 107 |
| End Page | 118 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313643 |
| JaLCDOI | 10.18926/fest/11542 |
|---|---|
| Title Alternative | Preparation and In Vitro Release Property of PLA Microspheres Enclosing Antitumor Agent |
| FullText URL | 006_103_106.pdf |
| Author | Nishino, Satoru| Yoshizawa, Hidekazu| Natsugoe, Shoji| Aiko, Takashi| Hatate, Yasuo| Kitamura, Yoshiro| |
| Abstract | Recently, many antitumor agents developed. Irinotecan hycrochloride (CPT) has a great side effect even though it is well effective against the cancer. Drug delivery system (DDS) medicine indicates that the release rate of medicine is constant for a long time. Therefore, in order to materialize the general idea of DDS, we applied microencapsulation technique to prepare biodegradable polymer microspheres (MS) enclosing antitumor drug having no side effect. Polylactide microparticles enclosing antitumor agent were prepared by solvent evaporation method under various operation conditions. The effects of operation parameter on release rate of drug and morphology of microparticles were studied. |
| Keywords | DDS microparticle polylactide antitumor agent solvent evaporation DSC |
| 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 | 103 |
| End Page | 106 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002314051 |
| JaLCDOI | 10.18926/fest/11540 |
|---|---|
| Title Alternative | Formation of Crosslinked Polyurea Membrane by Phase Separation Method |
| FullText URL | 006_099_102.pdf |
| Author | Kobayashi, Eiji| Yoshizawa, Hidekazu| Jacobson Joseph| Kitamura, Yoshiro| |
| Abstract | This research was conducted to clarify the membrane formation mechanism of crosslinked polyurea microcapsules by phase separation method, specially the role of polymeric surfactant of poly(ethylene-alt-maleic anhydride),(poly(E-MA))at the interface of O/W emulsion. Because of its toxicity, alternative chemicals should be chosen. This understanding may make possible to find the alternative chemicals. It was found that poly(E-MA)was necessary for the formation of crosslinked polyurea membrane. The addition of sodium dodecyl sulfate (SDS) prohibited the membrane formation reaction at the interface, even in the care of poly(E-MA) concentration enough for polymeric microcapsule formation. From the results in this study, poly(E-MA) as polymeric surfactant was found to be adsorbed on the interface of O/W emulsion and provide the reaction site for the membrane formation of polymeric microcapsules. |
| Keywords | microcapsulation O/W emulsion polyurea polymeric surfactant |
| 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 | 99 |
| End Page | 102 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313844 |
| JaLCDOI | 10.18926/fest/11539 |
|---|---|
| Title Alternative | One-dimensional Compression Tests of Sludge Cake from Dredged Sludge |
| FullText URL | 006_085_097.pdf |
| Author | Wakitani, Yoshiaki| Fujii, Hiroaki| Nishimura, Shin-ichi| Inoue, Takashi| |
| Abstract | One-dimensional compression tests were performed to investigate compression characteristics of sludge cake used as a construction material. The sludge cake is dewatering product of dredged sludge from the bottom of a lake. The test results show following compression characteristics. (1) For the undisturbed samples, e-log p curves show compressibility of overconsolidated clay ordinatily observed. (2) For the disturbed samples, there observed compressibility close to that of ordinary normally consolidated clay. (3) For the recompressed samples, there observed two turning points on e-log p curve. The compression presures(p(c1) and p(c2)) at those points for the unsubmerged tests have a linear correlation with the recompression pressure(p(s)). The submerged tests give very small values of p(c1) and p(c2) compared with the case of unsubmerged test. (4) For the recompressed samples, the first compression index(C(c1)) after p(c) has a linear correlation with the initial void ratio(e(0)), and the second compression index(C(c2)) shows almost constant value. |
| Keywords | sludge cake one-dimensional compression test e～log p curve compression index void ratio |
| 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 | 85 |
| End Page | 97 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313853 |
| JaLCDOI | 10.18926/fest/11537 |
|---|---|
| Title Alternative | Long-term Change Trend of Climate at Aomori City |
| FullText URL | 006_081_084.pdf |
| Author | Moroizumi, Toshitsugu| Sato, Yuichi| Sato, Koichi| Miura, Takeshi| |
| Abstract | Characteristics of long-term change for air temperature, precipitation and snowfall-depth at Aomori city were analyzed with data during the 111 years, from 1886 to 1996. The typical results were as follows: (1) The increasing rate of the annual mean air temperature was 1.07℃/111 year. (2) The increasing rate of the monthly minimum air temperature was larger than that of the monthly maximum air temperature. (3) The increasing rate of the monthly air temperature was large from winter to spring, however, was not so from summer to autumn. (4) The decreasing rate of annual precipitation was 0.187 mm/year. (5) The 5-year moving average of annual snowfall-depth might indicate the existence of about 10-year period. |
| Keywords | Air temperature precipitation snowfall-depth long-term change Aomori city |
| 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 | 81 |
| End Page | 84 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313378 |
| JaLCDOI | 10.18926/fest/11535 |
|---|---|
| FullText URL | 006_067_079.pdf |
| Author | Kamboh Maqsood Ahmed| Oki, Yoko| Adachi, Tadashi| |
| Abstract | The distribution on Ca, K, Na and Cl in root and leaves was studied in salt tolerant variety (Chikugo Izumi) and salt sensitive variety (PB-81) of wheat under saline conditions. The plants grown in 5% Hoagland's nutrient solution were subjected to 100 mM NaCl salinity for one week before observation with scanning electron microscope and analysis of selected samples with X-ray microanalyzer. Root growth was not affected in salt tolerant variety but reduced significantly in salt sensitive variety. Shoot growth was reduced in both varieties but much higher in salt sensitive variety. Salinity increased accumulation of Na and Cl in all root cells including vascular cells in salt sensitive variety. Salt tolerant variety not only reduced uptake of Na and Cl under saline conditions but also restricted their accumulation in cortex maintaining vascular cells relatively free of these ions. Salt sensitive variety failed to block transport of Na and Cl from root to leaves leading to much accumulation of these ions in leaves under salinity sterss. |
| Keywords | Ion distribution salinity salt tolerance wheat varieties X-ray microanalysis |
| 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 | 67 |
| End Page | 79 |
| ISSN | 1341-9099 |
| language | English |
| File Version | publisher |
| NAID | 120002313904 |
| 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/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/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/11527 |
|---|---|
| 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/11524 |
|---|---|
| Title Alternative | Speeds of travelling wave solutions in a mathematical model of some infectious disease in predator-prey system |
| FullText URL | 006_017_023.pdf |
| Author | Kajiwara, Tsuyoshi| Okita, Tomoki| |
| Abstract | In this paper we construct a simple mathematical model for infectious disease in a pradator-prey system, and study the speeds of travelling wave solutions of this model. We present a method of estimation of speeds and make a numerical study about this matter. |
| Keywords | Travelling wave Infectious disease |
| 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 | 17 |
| End Page | 23 |
| ISSN | 1341-9099 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002313731 |
| 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/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 |
