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한국과 일본의 전통적 도시주택지에 관한 비교연구 : 가회동과 이시베코우지의 성립과정과 변용
이동길,김기수 대한건축학회 2001 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.21 No.2
The purpose of this study was Traditional urban housing have constantly undergone transformations throughout the history of urbanization. Such phenomenon can be seen In traditional Korean and Japanese urban housing, having similar characteristics and having similar living patterns. This study compares two traditional residential areas of the two countries that undergone similar transformations. Gahwedong district of Seoul, Korea, and Isabekowuji district of Kyoto, Japan. After that, this study was continued to prepare a traditional landscape formation in historical downtown which is based on a hypothetical approach and to understand the potential possibility. In addition, Korean research report (March, 1986) and Japanese research report (March, 1994) was analyzed and used. Also, comparative historical analysis of the city type traditional houses of both country's materializaticn, and transformation characteristics were conducted. By explaining residential patterns and their effects on later architectural and residential planning tendencies, this study will find characteristics of the each district and differences and similarities.
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이동길,장경천,정민관,김명호,김일수 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-
MIM(Metal Injection Molding) that is a kind of PIM(Powder Injection Molding) is using in optical communication field, display field, several fields such as semi-conductor field because ceramic has superior physical properties. Also, mold's optimization that can produce high precision flange that is one of main parts of optical communication field is greatly required. The objective of this paper is to study the suitability of design and capability analysis for the MIM and process that can mass-produce the flange using in a mold by conduct the experiments as well as the flow analysis. It was filling time 0.5-1.5 second, injection pressure 11.0-12.5 MPa range for the injection parameters that cause high effect to injection derived from optimum condition by flow analysis. Yield that is more than gravity 7.495 that establish by target as result that analyze gravity of products at investigated injection conditions was 99.01 % and process capability was construed by 3.83 sigma level. Also, the average gravity and standard deviation was 7.6151 and 0.0511 respectively. The measured dimensions were all good results within the established target showing that concentricity, roundness, and density were 27.43 ㎛, 18.64, and 97.63%.
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