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 日本語
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 日本語
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 日本語
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 日本語
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 日本語
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 英語
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 日本語
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 英語
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 英語
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 日本語
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 英語
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 日本語
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 英語
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 英語
File Version publisher
NAID 120002313814