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Cho, Kang-Rae;Kim, Yang-Kyun;Eom, Myung-Do;Kim, Chong-Chun
- Journal of Korean Society for Atmospheric Environment
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- v.5 no.1
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- pp.79-87
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- 1989
In order to reduce the smoke emission from the in-service city bus, this study was evaluated the particulate reduction efficiency and regeneration ability of the catalitic trap oxidizer (CTO) on the city bus (D0846HM engine) equipped with it. Before the on-road CTO test, the laboratory test of CTO on engine test-bench was performed. Reduction efficiencies of smokes and particulates were 54 and 45%, and those of gaseous pollutants such as carbon monoxide (CO) and hydrocarbons (HC) were 90 and 60%. In order to evaluate the regeneration ability of the CTO by the catalytic oxidation of trapped particulate, field test was performed on the in-service road. The regeneration temperature was 350$^\circ$ which was same with the exhaust temperature of city bus.
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조현숙;임선영;김경미;최윤지
- The Korean Journal of Community Living Science
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- v.12 no.2
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- pp.75-87
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- 2001
This study examines the impact of marital conflict and conflict-coping type on the marital satisfaction of rural married person. Data were obtained from 476 who married living in rural area. The major finding of this study are as follows. First, marital conflict were shown to be low, while in terms of degree of seriousness, envirnmental, interpersonal and intrapersonal are in descending order. Also, husband perceived marital conflict higher than wife. On the whole husband and wife used more reasoning coping type. And marital satisfaction was higher in husband's side. Second, living standard and conflict-coping types influence on marital satisfaction of rural men and women who married. That is, the higher husband perceived living standard and the less they used verbal aggression behavior and physical violence behavior and then the higher they perceived marital satisfaction. And the higher wives perceived living standard, they used more reasioning behavior and then the higher they perceived marital satisfaction.
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주영규;전수복
- Asian Journal of Turfgrass Science
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- v.8 no.3
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- pp.179-192
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- 1994
Much attention has been paid recently to environmental destruction by golf course constructions in Koera. An efficiency and up-to-date technology on the planning and design practices has been requested to minimize the environmental impacts. Computerized systems for golf course design in the point of physical conservation of environment were discussed here. Geograpic Information System were applied on the process of geograpical data input and analysis through the final outputs, Simulation works by the total database management make enable to pre-investigate of the design in view of an assessment of environment impacts. It is also possible to evaluate plans easily and propose the alternatives properly. Precise quantity caculation of en-gineering works by computer system should be guarantee scientific, economic, and environme-ntally sound golf course design.
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