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RISS 인기검색어
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- 저자 : 최준호(Choi Jun-Hoo) (검색결과 4 건)
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리진철(Li Zhen-Zhe),허광수(Heo Kwang-Su),최준호(Choi Jun-Hoo),설승윤(Seol Seoung-Yun) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Steam generation mechanism is the key technology of domestic steam cleaner. Not only weight and price of steam cleaner but also the performance of steam generation mechanism must be considered to improve the competitive power of the products. In order to find out the mechanism which can be used to improve the performance of steam generator, the process of steam generation was studied at first. In the following step, possibility of control, safety of mechanism and etc were compared about the two candidated steam generation mechanism. Finally, the merit and drawback of each mechanism were summarized.
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리진철(Li Zhen-Zhe),허광수(Heo Kwang-Su),최준호(Choi Jun-Hoo),설승윤(Seol Seoung-Yun) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Thermoforming is one of the most versatile and economical process to produce polymer products. The drawback of thermoforming is difficult to control thickness of final products. Temperature distribution affects the thickness distribution of final products. At first, Duhamel's theorem was used in order to get analytic solution, but the analytic solution was difficult to be applied when the boundary condition is complicate or noncontinuous. In order to compensate the drawback of analytic solution, the solution was found out using integral method. With checking the accuracy, it was found out that 4<SUP>th</SUP> order polynomial was fit to present time-dependent temperature profile in the direction of sheet thickness. Finally, case study was carried out using developed approximate analytic solution under the condition of satisfying requirements of thermoforming.
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리진철(Li Zhen-Zhe),허광수(Heo Kwang-Su),최준호(Choi Jun-Hoo),설승윤(Seon Seoung-Yun) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
The steam generation mechanism is the key technology of domestic steam cleaner. Not only weight and price of steam cleaner but also the performance of steam generation mechanism must be considered to improve the competitive power of the product. In order to satisfy safety of the product, double insulated cartridge heater must be used, but it will decrease the performance of steam generator. In order to decrease the cost of final product, a steam generator using double insulated cartridge heater was designed at first before manufacturing. COMSOL which is one of the multi physics commercial code based on FEM was used to find out warm-up time and temperatue distribution. Finally, the possibility of control was simulated using ON/OFF control.
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박남규,최준호 건국대학교 사회정책연구소 1999 사회과학연구 Vol.11 No.-
With the launch of the WTO regime in 1995, many changes have taken place in the International Trade Environment. Among other things, means for direct export support of government have been curtailed or abolished. But, the relative importance of export insurance is becoming greater as the very efficient means for indirect export support under the IMF supported regime as well as the WTO regime. The Korea Export Insurance System, began for export support, is highly valued in that whenever any difficulty has occurred in export activity and export financing, it has made a great contribution to overcome it, But the Export Insurance System is still poorly used in Korea compared to advanced countries. Therefore, this study attempted to present the following improvement to attain the goal of the export insurance system that is said to contribute to the increase in export: First, in order to cope actively with changes in the International Trade Environment, it is necessary to improve the content of the existing system, to increase its utilization rate of the current 20.5% and to expand export insurance funds. Second, it is necessary to secure the active operation of export insurance, the reasonable operation of the premium rate, the diversification of the items intended for export insurance. Third, it is necessary to reinforce the publicity and marketing activity for export insurance, diversify the overseas credit research method. In conclusion, there is a need the activate export insurance through effective support so as to increase exports based on these improvements.
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