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RISS 인기검색어
- 검색키워드
- 저자 : 玉致律(Chi-Yul Ok) (검색결과 2 건)
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海雲臺 海水浴場에 있어서의 養濱工法에 관한 實驗的 硏究
閔丙亨(Byung-Hyung Min),玉致律(Chi-Yul Ok),劉相昊(Sang-Ho Yu) 한국해양공학회 1987 韓國海洋工學會誌 Vol.1 No.1
A beach nourishment method can be used as one of the beach erosion protection methods which may keep coastal environments whithout constructing coastal structures on the HAE UN DAE beach.<br/> The beach nourishmens is affected by a natural condition and artificial condition; a natural condition includes conditions of bottom slope, diameter of bottom materials and waves, and artificial conditions include deposit position, method, diameter and quantity of the nourishing sand.<br/> It has been accomplished to obtain the deposit position and the best diameter of the nourishing sand from a two-dimensional hydraulic model test, which simulates the erosional HAE UN DAE beach.<br/> In this study, the protection of the beach erosion can be maximized when the nourishing sand of 3.3㎜ in diameter, which is about 5.5 times of the bottom materials in diameter, is deposited layerly in front of the breaker zone which has a water depth of 4.6m.
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남상돈,오진태,옥치률 한국초등과학교육학회 1990 초등과학교육 Vol.9 No.1
In this study, the trend of Japanese elementary science education was investigated and its realities were grasped. By comparing the results with those of Korea, it was intended to contribute to the development of science in Korea through the elementary science education. The discussions were as followed. 1. The elementary science curriculum and the textbook of two countries were compared to analyze. 2. In order to compare the evaluation of science educational achievement of the elementary school pupils of two countries, the items of inquiry for the instrument of educational achievement were prepared. And the items were examined to the 6th grade of the elementary school of two countries and each field(physics, chemistry, biology, earth science) and each scope of behavioral aims(knowledge, understanding, application) were manipulated statistically to compare and analyze. 3. By comparing the science curricula which has executed at the elementary teacher training college of two countries, the educational curriculum plan for the qualitative improvement of the science teacher was suggested. The main objective of this study through the results of the former discussions was to grope the effective direction for the elementary science education of the 21th century.
DBpia
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