http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
권기찬,박상훈,윤성기,Kwon, Kie-Chan,Park, Sang-Hoon,Youn, Sung-Kie 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.11
The first-order least-squares meshfree method for linear elasticity is presented. The conventional and the compatibility-imposed least-squares formulations are studied on the convergence behavior of the solution and the robustness to integration error. Since the least-squares formulation is a type of mixed formulation and induces positive-definite system matrix, by using shape functions of same order for both primal and dual variables, higher rate of convergence is obtained for dual variables than Galerkin formulation. Numerical examples also show that the presented formulations do not exhibit any volumetric locking for the incompressible materials.
사용후핵연료 차세대관리 종합공정 실증시설내 후면 차폐문의 구조적 안전성 평가
권기찬,구정회,이은표,정원명,유길성,이원경,국동학,조일제,Kwon, Kie-Chan,Ku, Jeong-Hoe,Lee, Eun-Pyo,Choung, Won-Myung,You, Gil-Sung,Lee, Won-Kyung,Kuk, Dong-Hak,Cho, Il-Je 한국방사성폐기물학회 2006 방사성폐기물학회지 Vol.4 No.1
A demonstration facility for an advanced spent fuel conditioning process (ACP) is under construction at KAERI. In this hotcell facility, the rear door is frequently used since all process equipment and materials are taken in and out only through the rear door. Therefore , both the structural safety and stability of the door are essentially required for the safety of ACP facility. In this paper, the finite element analysis has been performed to investigate the structural safety under the impact condition between the rear door and the door frame. Also the possibility of the rear door being tumbled over by the impact force or the inertia force under a sudden stop conditon has been evaluated. The analysis results demonstrate that the structural safety and stability of the rear door are sufficiently assured for both the impact and the accidential stop conditions.
사용후핵연료 처리를 위한 ACP 실증시설내 개폐형 작업대의 구조적 안전성 평가
권기찬,구정회,이은표,정원명,유길성,이원경,조일제,국동학,Kwon, Kie-Chan,Ku, Jeong-Hoe,Lee, Eun-Pyo,Choung, Won-Myung,You, Gil-Sung,Lee, Won-Kyung,Cho, Il-Je,Kuk, Dong-Hak 한국방사성폐기물학회 2006 방사성폐기물학회지 Vol.4 No.1
A demonstration facility for advanced spent fuel conditioning process (ACP) is under construction in KAERI. In this hot cell facility, all process equipments and materials are taken in and out only through the rear door. The working table in front of the process rear door is specially designed to be openable for the efficient use of the space. This paper presents the structural safety analysis of the openable working table, for the normal operational load condition and accidential drop condition of heavy object. Both cases are investigated through static and dynamic finite element analyses. The analysis results show that structural safety of the working table is sufficiently assured and the working table is not collapsed even when an object of 500 kg is dropped from the height of 50 cm.
골목길 재생 계획 - 독산동 말미마을의 적합한 형태의 골목길 재생 -
권기찬(Kwon, Ki-Chan),송은경(Song, Eun-Gyeong),조용훈(Cho, Yong-Hoon),김대익(Kim, Dae-ik) 대한건축학회 2019 대한건축학회 학술발표대회 논문집 Vol.39 No.2
Most of the alleys that have been in the past are now aged or unwilling to go. We will focus on how people will be able to get there. It selects the target location and proceeds in a manner that suggests examples and measures, so it tries to solve the problem by providing brief information about the area and suggesting improvement measures. The research was started because the company wanted to turn the street into a quiet alleyway back home rather than revitalizing the business district through commercial facilities.
선진 원자력발전국의 사용후핵연료 처리기술 및 정책현황과 우리나라의 관련연구 현황
유길성,정원명,구정회,조일제,국동학,권기찬,이원경,이은표,홍동희,유지섭,박성원,You, Gil-Sung,Choung, Won-Myung,Ku, Jeong-Hoe,Cho, Il-Je,Kook, Dong-Hak,Kwon, Kie-Chan,Lee, Won-Kyung,Lee, Eun-Pyo,Hong, Dong-Hee,Yoon, Ji-Sup,Park, Seong-W 한국방사성폐기물학회 2007 방사성폐기물학회지 Vol.5 No.4
Status on the spent nuclear fuel management policy and R&D plan of the major countries is surveyed. Also the prospect of the future R&D plan is suggested. Recently so-called fuel cycle nations, which have the reprocess policy of the spent fuel, announced new spent fuel management policy based on the advanced fuel cycle technology. The policy is focused to transmute highly radioactive material and material having a very long half-life, and to recycle the Pu and U contained in the spent fuel. In this way the radio-foxily of the spent fuel as well as the amount of the high level waste to be eventually disposed can greatly be reduced. Most of countries selected the wet process as a primary option for the treatment of the spent fuel since the advanced wet process, which is based on the existing PUREX process, looks more feasible as compared with the dry process. The wet process, however, is much more sensitive in terms of proliferation-resistance compared with the dry process. The pure Pu can easily be obtained by simply modifying the process. On the other hand the pure Pu can not be extracted in the dry process based on the high temperature molten salt process such as a pyroprocess. Even though the pyroprocess technology is very premature, it has a great merit. Thus it is necessary for Korea to have a long term strategy for pursuing a spent fuel treatment technology with a proliferation resistance and a great merit for the GEN-IV fuel cycles. Pyroprocess is one of the best candidates to satisfy these purposes.