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손원희(W.H Sohn),최진환(J.H. Choi),이순걸(S.G Lee),박동창(D.C. Park),류한식(H.S. Ryu),배대성(D.S. Bae),허건수(K.S. Huh) 한국자동차공학회 2001 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2001 No.5_2
An experimental study of dynamic track tension for high mobility tracked vehicle is investigated and compared to multibody dynamic simulation model. This research focuses on a heavy military tracked vehicle which has sophisticated suspension and rubber bushed track systems in computer model of the track tension. In order to obtain accurate dynamic track tension of track subsystems, each track link is modeled as a body which has six degrees of freedom. A compliant bushing element is used to connect track links. Various virtual proving ground models of Chang-Won proving ground are developed to observe dynamic changes of the track tension. The obtained empirical results of the dynamic track tension are comparcd against the simulation studies. <r.B.7]~%<>1 : Tracked Vehicle{;>~£,"j-"J), Trnck Link(;>~£"83), Dynamic Trnck Tension(%"'1 ;>~£"J-;;:j), Compliant Bushing (%<;! .!J!.>-J), DTJS("J-;;:j ~;;<.j A16 ',iJ)
Choi, J.J.,Ryu, J.,Hahn, B.D.,Ahn, C.W.,Kim, J.W.,Yoon, W.H.,Park, D.S. Pergamon Press ; Elsevier Science Ltd 2014 International journal of hydrogen energy Vol.39 No.24
Dense electrolyte and porous cathode coatings by room-temperature operating aerosol deposition process are applied and optimized for metal-supported solid oxide fuel cell fabrication. Porous metal support of FeCr-based alloy including (La, Sr)TiO<SUB>3</SUB> diffusion barrier and (Ce, Gd)O<SUB>2-δ</SUB>-Ni anode were prepared using tape-casting process and co-fired in reducing atmosphere. Dense (Zr, Y)O<SUB>2-δ</SUB> electrolyte and porous (La, Sr)(Co, Fe)O<SUB>3-δ</SUB> cathode were prepared using aerosol deposition on it. The La<SUB>0.2</SUB>Sr<SUB>0.8</SUB>TiO<SUB>3</SUB> diffusion barrier effectively suppressed the reaction between the FeCr-based alloy support and Ni in the anode during co-firing at 1300 <SUP>o</SUP>C. Room-temperature deposition of the electrolyte and cathode layers in low vacuum conditions effectively prevented metal support degradation and cathode decomposition. Microstructural analysis of the anode, electrolyte, and cathode layers is presented. An open circuit voltage of 1.08 V and maximum power density of 0.71 W/cm<SUP>2</SUP> were achieved at 750 <SUP>o</SUP>C.
최진우(J. W. Choi),김은숙(E. S. Kim),김영만(Y. M. Kim),우종우(J. W. Woo),한재일(J. I. Han),전성익(S. I. Jun) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.2Ⅲ
인터넷 사용의 폭발적 증가로 인해 다양하고 인터넷에서 제공되는 새로운 서비스들이 계속 증가하고 있다. 본 연구는 새로운 인터넷 서비스인 전자투표시스템에 대한 것으로 분산 미들웨어를 사용하여 H/W 나 S/W 의 제한 없는 클라이언트/서버 시스템을 목표로 하였다. 본 논문은 대표적인 분산 미들웨어인 CORBA 와 DCOM 을 사용하여 전자투표시스템의 프로토타입을 구현하고 그 결과를 비교한다. 이는 앞으로 개발될 실제 전자투표시스템의 개발에 요구되는 분산 미들웨어 선택에 유용한 지침이 될 것이다.
Introduction of virtual open chamber for testing a weather modification technique in Korea
J-W Cha,K-H Chang,M-J Lee,J-Y Jeong,J-W Jung,H-Y Yang,K-L Kim,Y-C Kim,C-H Kim,K-H Nam,M-K Suk,C-K Jung,H-Y Go,J-H Chae,G-W Lee,Y-H Cho,S-H Jung,H-M Park,Y-A Oh,J-Y Jung,B-G Kim,Y-J Kim,M-H Choi,S-D Ki 한국기상학회 2009 한국기상학회 학술대회 논문집 Vol.2009 No.4