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오박균 湖西大學校 工業技術硏究所 2002 工業技術硏究所論文集 Vol.21 No.-
To carry out the analysis of the extruding products, it is necessary to get the optimum computation of extruding force for the extrusion. The existing numerical models of extrusion may be large different from the actual conditions. In this study, accurate theoretical analysis of the extrusion forming and optimum extruding force should be subjected. It is to develop the numerical models which describes the optimum extrusion force. Therefore, the results should improve accuracy of extrusion forming and cause the energy saving for the extrusion.
오박균 湖西大學校工業技術硏究所 1997 工業技術硏究所論文集 Vol.16 No.-
근래 수도권 및 대도시의 대기오염은 심각한 상태에 이르고 있다. 이에 대한 주원인은 자동차공해원중 디젤차랑을 들 수 있다. 디젤차량은 우리나라 전체차량의 36%에 이르고 있으며 전체 자동차 배출가스오염량의 80%이상을 차지하고 있다. 특히 5∼6%에 불과한 트럭 및 버스가 전체 오염의 65%정도를 배출하고 있다. 본 연구는 이러한 디젤엔진의 대기오염을 저감시키는 시도로써 LPG 및 CNG 겸용 전소엔진을 개발하여 배출가스시험을 거쳐 각종 국내외 규제치와 비교 2000년대 이후 규제기준을 만족하는 자동차 배출가스저감효과를 달성하였다.
오박균 한국산학기술학회 2004 한국산학기술학회논문지 Vol.5 No.3
In order to analyze the shaped drawing process, it is necessary that the friction boundary condition between dies and blanks should be worked out the accurate numerical friction models. But, the existing numerical models of the drawing may be large different from the actual conditions. In this paper, accurate analysis of the drawing process should be subjected. It is to develop accuracy of the numerical friction models and potentialize to apply for the high speed forming work in the drawing process. Therefore, the results should improve the accuracy, cause the energy saving for the drawing process and finally expand the applying areas of the results.
노트북 PC용 히트파이프 냉각시스템의 성능에 관한 실험적 연구
吳博均,吳世珍 호서대학교 공업기술연구소 2001 工業技術硏究所論文集 Vol.20 No.-
The increasing power and particularly the CPU power, coupled with the continuous shrinking size of current notebook PC, have made the thermal management one of the critical factors in the notebook PC design. The heat pipe has become a widely used thermal management tool in the notebook PC industry. Approximately 60% of current notebooks utilize heat pipe in their thermal management solutions. This paper provides a RHE's(Remote Heat Exchanger) maximum heat transfer rate and the thermal resistance of heat pipe thickness changes and also bending or non-bending types. So, the discussions about the thermal discharge performances of RHE in the range of 1.6~2.0mm heat pipe thickness are pursued.