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전용식(Y. S. JEON),주민진(M. J. JU),오영철(Y. C. OH),김동수(D. S. KIM) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.11
In this study, A special quality analysis and experiment for low power consumption type pneumatic ISO Solenoid valve was performed. And flow characteristics of the ISO Solenoid valve by stroke change was numerically investigated. As a result, it is shown that magnetic force(2.4N) is exerted enough to move poppet with 0.3㎜ stroke with 0.01 seconds of response time, and that there is no magnetic force emitted by yoke.
전용식(Y. S. Jeon),주민진(M. J. Ju),오영철(Y. C. Oh),김동수(D. S. Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
The technology of ISO Solenoid Valves is now considered as a core technology in the fields of the production line of semi-conductor chips and the ISO fluid chips for medical applications. And ISO Solenoid Valves, which operate by compressed air, are characterized by high speed response, great repeatability and that the pressure on the cross sectional area of poppet is kept constant regardless of the fluctuation of the pressure exerted on the ports. The primary objective of this study is to compare the optimally designed Solenoid Valve with the actually produced one and to design a power saving circuit which can highly improve the efficiency by providing optimal current according to mechanical load.
전용식(Y. S. Jeon),주민진(M. J. Ju),오영철(Y. C. Oh),김동수(D. S. Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
The technology of ISO Solenoid Valves is now considered as a core technology in the fields of the production line of semi-conductor chips and the ISO fluid chips for medical applications. And ISO Solenoid Valves, which operate by compressed air, are characterized by high speed response, great repeatability and that the pressure on the cross sectional area of poppet is kept constant regardless of the fluctuation of the pressure exerted on the ports. The primary objective of this study is to compare the optimally designed Solenoid Valve with the actually produced one and to design a power saving circuit which can highly improve the efficiency by providing optimal current according to mechanical load.
전용식(Y. S. JEON),오영철(Y. C. OH),주민진(M. J. JU),김동수(D. S. KIM) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
In this study, A special quality analysis and experiment for low power consumption type pneumatic ISO Solenoid valve was performed. And flow characteristics of the ISO Solenoid valve by stroke change was numerically investigated. As a result, it is shown that magnetic force(2.4N) is exerted enough to move poppet with 0.3㎜ stroke with 0.01 seconds of response time, and that there is no magnetic force emitted by yoke.
전용식(Y. S. JEON),오영철(Y. C. OH),주민진(M. J. JU),조수정(S. J. JO),김동수(D. S. KIM) 한국유체기계학회 2008 유체기계 연구개발 발표회 논문집 Vol.2008 No.-
In this study, A special quality analysis and experiment for low power consumption type pneumatic ISO Solenoid valve was performed. And flow characteristics of the ISO Solenoid valve by stroke change was numerically investigated. As a result, it is shown that magnetic force (2.4N) is exerted enough to move poppet with 0.3㎜ stroke with 0.01 seconds of response time, and that there is no magnetic force emitted by yoke.
3차원 디지털 펫 (Digital Pet) 기반 메신저로 구현한 유비쿼터스 응용 서비스
오은혜(Grace Oh),서주홍(J.H. Seo),김준호(J.H. Kim),이규백(K.B. Lee),박선지(S.J. Park),오주민(J.M. Oh),신승봉(S.B. Shin),최영일(Y.I. Choi),최정희(J.h. Choi),류대현(D.H. Ryou),신승중(S.J. Shin),나종화(J.W. Na) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.31 No.2Ⅲ
유비쿼터스 컴퓨팅 개념을 게임과 애니매이션 그리고 메신저에 응용한 3-D Pet Messenger (3PM)을 설계하고 개발하였다. 요즘 검색엔 진과 뉴스 서비스를 주로 제공하던 포털들이 메신저를 기반으로 하는 포털로 변신하고 있다. 3PM은 일상적인 메신저 기반포털(Portal)을 유비쿼터스 컴퓨팅 개념과 육성 시뮬레이션 게임을 접목시켜서 발전적인 새로운 형태의 메신저를 지향하고 있다. 육성 시뮬레이션 게임에서는 3-D Pet을 양육하는 게임으로서 사용자가 자신의 사이버 애완동물을 다른 사용자에게 보낼 수도 있다. 만일 사용자가 다른 컴퓨터로 이동하면, 그 사이버 애완동물도 그 사용자를 따라가서 필요한 최신의 정보를 제공할 수 있도록 제작되었다. 유비쿼터스 개념에 기반을 둔 메신저와3-D 애완동물을 이용한 육성 시뮬레이션 게임이 통합되도록 시스템이 설계되었고, Visual C++ /MySQL/OpenGL/3Ds Max 등의 도구들을 이용하여 시작품을 제작하였다.