• Journal of the Korean Society of Environmental Restoration Technology
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• v.1 no.1
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• pp.114-118
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• 1998

Present status of Japanese wetland ecosystems and several trials towards rehabilitation and restoration of them are reviewed. Most of wetlands are altered to paddy fields and city areas, and natural wet lowland including tideland is the most endangered nature in Japan. Not only the preservation of natural wetlands but also the conservation of secondary nature of paddy field and waterways in traditional rural areas and restoration of original nature in city areas became the most concerned theme for nature conservation according to the national strategy for the biodiversity conservation. Not only the technological development based on the conservation ecology, but also the development of mitigation banking system are needed in Japan.

• Proceedings of the Membrane Society of Korea Conference
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• 1993.10a
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• pp.7-12
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• 1993

Preparation of asymmetric polyimide membranes by the phase inversion process was investigated to develop ultrafiltration, reverse osmosis and pervaporation membranes for organic solutions, using a commercially available solvent-soluble polymaide. The influences of the various factors such as the composition of a cast solution, casting conditions, gelating solutions and others on membrane structure and performance were studied in detail, and it was made clear that a wide variety of asymmetric polyimide membranes ranging from UF to RO for organic solutions could be prepared from the aromatic polyimide used. It was also found that the chemical stability and separation performance of the asymmetric polyimide membranes could be improved by annealing in a liquid or a vacuum at above 200$\circ$. The membrane annealed at 300$\circ$ in a vacuum exhibited the separation factor $\alpha(H_2O/EtOH)$ of 900 with the flux of 1.0 kg/$m^2\cdot h$ at 60$\circ$C for an aqueous ethanol solution of 95 vol%.

• Korean journal of applied entomology
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• v.36 no.4
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• pp.290-298
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• 1997

Eight species of Depressariidae, , are reported for the first time from Korea. Depressria niphospyrphos Meyrick and D. basicosta Matsumura are newly synonymized with D. taciturna Meyrick. Agonopterix sapporensis (Matsumura) and A. ochroephala Saito are also synonymized with A. angeliocella(Hubner) respectively, and A. iharai Fujisawa with A. ocellana (Fabricius).

• Asian-Australasian Journal of Animal Sciences
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• v.22 no.5
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• pp.721-726
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• 2009

The molecular mechanism of adipocyte differentiation has been well documented. However, the effect of specific nutrients such as lysine on adipocyte differentiation is poorly understood especially in ruminant animals. Therefore, the aim of the present study was to elucidate the influence of lysine on adipocyte differentiation and adipogenic genes in cultured bovine preadipocytes. The preadipocytes were treated with different concentrations of lysine (40, 160, 320 mg/L) or troglitazone (10 ${\mu}M$) for 2 days and then subsequently cultured in differentiation medium until day 6. Expression levels of $C/EBP{\alpha}$ were significantly higher (p<0.001) in 40 and 160 mg/L lysine-treated cells compared to 320 mg/L treatment. Though there was an increasing trend in $PPAR{\gamma}$ expression levels with the decreasing lysine concentration, the results were not significant. The preadipocyte factor (pref-1), expression significantly (p<0.001) reduced with decreasing lysine concentration. The Oil red O staining results were better in 40 mg/L treated cells compared to 160 and 320 mg/L lysine treated cells. Our overall results indicate that insufficient supply of lysine increases the adipogenic potential in bovine intramuscular preadipocytes.

• Journal of Korean Society of Rural Planning
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• v.11 no.4 s.29
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• pp.1-8
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• 2005

For the purpose of finding correlation between the characteristics of the rural residents and the maintenance activities of naturally favorable waterside spaces, this paper has conducted a research with the focus on the three model case regions in Japan. The methods of the research included surveys, interviews, and documents. The research confirmed that the three regions in focus have characteristics distinct from one another. The rate of participation in group activities was high in a region, with members that belong to groups most active in the maintenance activities. Reasons for their participation included: to manage the local area themselves; and to promote cooperation and friendships among the residents. This proves that participation in the maintenance activities has also attributed to the formation of close communities in the regions. According to the analytic conclusion of the factors related to participation, the residents' experience to have been involved in a professional education program which induces communal participation, acted more as the major factor than the individual ones.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 1993.10a
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• pp.1354-1363
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• 1993

Optical methods were developed to examine their feasibility for quality evaluation of peanut with pod. Surface color and internal quality of peanut were measured without contact. The surface color of peanut was measured by light reflectance at a region of visible wavelengths. Its characteristic was high correlated with a visual grading of peanut. A trial machine for the color grading of peanut was developed using an optical sensor and it was considered to compare with the visual grading. The spectral reflectance at a region of near infrared wavelengths from 1,200 to 2,500nm was measured , and the chemical components of peanut were related to spectral reflectance at special wavelengths. The protein, fat and moisture contents of peanut were estimated by the near infrared methods. An infrared imaging method was developed to evaluate the internal quality of peanut with pod. As thermal characteristic of peanut with pod was deeply related to internal quality , the quality of peanut can be evaluated by temperature changes on the surface of peanut. Measurement of surface color, near infrared reflectance and thermal imaging were shown to be very effective in grading of peanut with pod.

• Journal of the Korean Institute of Rural Architecture
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• v.12 no.1
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• pp.41-48
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• 2010

A house is basic unit of human being living space and it reflects an occupation, family relation, a life style and sense of value of resident. The purpose of this study was to research the continuity of traditional elements and contemporary change of Japanese houses by field study and literature research. The subject of this study was sixteen houses of Miyashiro, Saitama pref. in Japan. The results of this study are as follow as. First, the traditional elements of contemporary Japanese houses are tatami floor room, tsuzukima, zashiki, dokonoma, butsudan, amado. Second, the tatami is symbol of Japanese living space. Wasizus maintains a traditional characteristic, but it is developed and fixed properly change in contemporary life. Third, the traditional elements of Japanese houses are continuing in the modern houses, and they are continuously changed the feature from recreate. It can be a connection of a hereditary factor of residential culture. Four, the continuity of modern change and traditional element of the Japanese houses can be understood the change of the structural and spatial responding method to accommodates a life.

• Journal of the Korean Society of Costume
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• v.30
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• pp.59-68
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• 1996

As a society is becoming more and more complicated people living in modern times are experiencing more stresses for various reasons. Some past research results proved the role of clothing in reducing the stresses. The purpose of this study is to investigate how the preference of the mini-style which is recently most fashionable styles is related to the psychological factors such as stress and body satisfaction. Measure Instrument were Nolmes and Masuda(1973)'s SRRS(Social Readjustment Rating Scal) Secord and Jourard(1953)' Body Cathexis Scale and mini-style preference scale by author Survey questionnaires were distributed to two hundred seventy adult women living in Seoul area during may 25 1992. through June 8. 1992. The age range of the subjects was from 30 to 49 The final number of subjects in-cluded in the statistical analysis was 244. The result and conclusions are as follows: 1. Significant difference was existed in mini-style preference between high and low body satisfaction groups. Mini-style was pre-ferred by high body satisfaction group than low body satisfaction group. 2, Significant difference was existed in mini-style preference between high and low stress groups. Mini-style was preferred by low stress group than high stress group. 3. Regarding demographic characteristics unmarried 2 year college graduates with low family income in their early 30's pref. mini-style. 4. There was a marginal interaction effect of demographic characteristics on the relation-ship between mini-style preference and body satisfaction. The higher preference and body satisfaction. The higher preference for mini-style was found for the higher body satis-faction group mostly with the age range of 35 to 39 married 4 year college graduates as drop-puts and mid less income group. 5. There was a marginal interaction effect of demographic variables on the relatonship be-tween mini style preference and stress level The higher preference for mini-style was re-lated to the low stress level group mostly with age group of 35 to 44 high school graduates or lower and highest income group regardless of their marital status. In sum mini-style seems to be preferred by women who feel relatively less stress and are more satisfied with their bodies thus psycho-logically stable.

• Journal of the Korean Society of Costume
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• v.32
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• pp.201-211
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• 1997

In light of the problem of imported apparel that tends to increase rapidly this study was intended to inquire into the assessment of male and female college students about the brands of imported apparel relative to dom-estic apparel based on quality perception price pirceptionand social psychological perception. And it is concerned with making a compara-tive study of the difference in consumer's con-sciousness of clothing between subjects by dividing them into the group of preference for imported apparel the group of non-preference for it on the basis of their ratings. As a consequence the following study results were obtained. 1) As a result of comparing college students' ratings for quality perception price perception and social psychological perception of impor-ted apparel all three factors were shown to have the high average value in care of the group of preference for imported apparel and to have a significant difference between groups. 2) As a consequence of making a compara-tive study of the difference in the clothing at-titude between groups the group of prefer-ence for imported apparel showed the high av-erage value about brand preference and identi-fication clothing involvement and interper-sonal perception through clothing and to hjave a significant difference with the group of pref-erence for imported apparel in terms of the peripheral environment and the place of pur-chase. 3) As a result of making a comparison of the difference in demographic factors between groups it was analyzed that female clollege students especially college women in the departments of art and physical education had the higher preference for imported apparel. And it was shown that they had the higher preference for imported apparel the greater amount of pocket money they had. Broader and deeper studies are required to be made about imported apparel in a multifaceted way. Therefore follow-on studies will have to be actively conducted such as a study of con-sumer's evaluation about imported apparel and domestic apparel charged at th same range of prices and a study of the difference on con-sumer's consciousness of imported apparel found over age span of consumers.

• Proceedings of the Korean Society of Crop Science Conference
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• 2017.06a
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• pp.186-186
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• 2017

Relay intercropping system of direct seeded rice and winter cereal is labor saving cultivation and has high land use efficiency in Japan. In this system, rice seeds are direct seeded into inter-row space of winter cereals (wheat or barley) in March or April. If the direct seeding of rice is conducted before stem elongation phase or using suitable seeder, these are little effect to yield of winter cereals. Though the seeds are generally thiuram treated, it's a matter that seedling establishment rate (SER) of direct seeded rice is low and unstable. The cause of low SER has not been revealed. In present study, with the aim to reveal causes of low SER, we conducted experiments and investigated the SER, and analyzed some factors that might affect SER. Experiment1: In 2015, 2016, we buried rice seeds underground, and investigated the transition of the seed survival rates (SSR). Seeds were thiuram-treated or non-treated. In 2 periods, SSR of thiuram-treated seeds were significantly higher than non-treated seeds. In 2016, thiuram-treated seeds were high in SSR (almost 75%) at April 30th, but low SER (10~27%) after harvest of winter cereals. Therefore, almost all of seed death might have been happen after germination. Analysis 1: We investigated the SER and cultivation conditions in Ibaraki pref. for several years. Meteorological factors were referred from the nearest point of AMeDAS. From mean temperature (MT) among 5days after and before the day, we divided the period of seeding ~June 20 to phase1~4. We defined each phase as below; Phase1: $MT{\leq}10^{\circ}C$, Phase2: $10^{\circ}C<MT{\leq}15^{\circ}C$, Phase3:$15^{\circ}C<MT{\leq}20^{\circ}C$, Phase4: $MT>20^{\circ}C$. We analyzed the correlation of SER and meteorological factors by each phase. Total number of days in phase 1~4 was significantly negative correlated with SER. In phase1, total rain fall and number of soil wetting days were significantly negative correlated with SER. In phase2~4, only MT was significantly positive correlated with SER. This result suggested that rainfalls in phase1 declined seed vigor to emergence from soil surface, by repeated water absorption and re-dry. From these present studies, it was suggested that one of factors of low SER of direct seeded rice in relay intercropping system is changing of water condition by rainfalls in phase1 ($MT{\leq}10^{\circ}C$). To improve SER, it's necessary to consider something seed treatments such as prevent water absorption during phase1. However, 58~60% of seeds seemed to die during May. It's suggested that, if seeds are thiuram treated, almost all of seeds can germinate underground, but the seed vigor to emergence from soil surface are insufficient. Further studies are needed to reveal the rest causes that is happening during emergence from soil surface.