http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이상석(Sangseok Lee),이진석(Jinseok Lee),이도형(Dohyung Lee),석경호(Kyungho Suk) 한국유체기계학회 2006 유체기계 연구개발 발표회 논문집 Vol.- No.-
Most heater being used in vehicles has been used to a cabin heating by being supplied from a heat loss of the engine coolant for heat source efficiency. Recently, the heat loss is reduced by high efficiency in the engine. It becomes to require the combustion heater that directly burns the heater used in vehicles to provide heat source of the heater. The purpose of this study is to research a burner which will applicate combustion heater by the numerical analysis. There are the 5 different types of burners, which is designed by differently each design of the swirler. N-DODECANE by used the burner fuel is performed by numerical analysis in every 5 burner. The burner's efficiency testing is evaluated on the basis of the Exhaust gas temperature.
이언(Eon Lee),강형석(Hyoungseok Kang),이상석(Sangseok Lee),노상도(Sangdo Noh),이창우(KwangMyong lee),이광명(ChangWoo Lee) (사)한국CDE학회 2010 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2010 No.1
Building Information Modeling (BIM) is the virtual representation of the physical and functional characteristics of a facility from inception onward. As such, it serves as a shared information repository for collaboration throughout a facility’s lifecycle. BIM is a new paradigm which can perform a diverse engineering activity such as design, simulation, structure analysis, etc and support a based information model in construction industry. In these days, many construction companies tried to perform a project efficiently by constructing and using BIM and carried out a research related in PMIS(Project Management Information System), etc. But a real case of research focused on 3D modeling object and control and share of engineering information is insufficient. In this research, we suggest an efficient BIM model and information share system based PLM for collaboration based on analyzing and researching a case of constructing BIM when perform construction project.
Lee, Sangseok,Lee, Haeri,Jung, Ok-Sang Royal Society of Chemistry 2017 Dalton Transactions Vol. No.
<▼1><P>The selective small molecular recognition of a discrete sandwich-shaped M3L2 zinc(ii) complex showing strong blue photoluminescence has been investigated.</P></▼1><▼2><P>Self-assembly of Zn(ClO4)2 with 1,3,5-tris(dimethyl(pyridin-3-yl)silyl)benzene (L) as a new <I>C</I>3-symmetric tridentate N-donor gives rise to a discrete sandwich-shaped M3L2 architecture, [Zn3(μ-OH)3L2](ClO4)3·4CH3CN·2H2O. Its blue photoluminescence is significantly quenched only by CH2I2 among the various small molecules, CH2Cl2, CH2Br2, CHCl3, 1,2-dichloroethane, EtOH, CH3CN, benzene, toluene, and phenol.</P></▼2>
유상석(Sangseok Yu),김한석(Hanseok Kim),이상민(Sangmin Lee),이영덕(Youngduk Lee),최원석(Wonseok Choi),안국영(Kookyoung Ahn) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
The performance of proton exchange membrane fuel cell (PEMFC) is seriously changed by the humidification condition which is intrinsic characteristics of the PEMFC. Typically, the humidification of fuel cell is completed by internal or external humidifier. A membrane humidifier is applied to the external humidification of fuel cell used for residential power generation. In this study, a simple static model is constructed to understand the physical phenomena of the membrane humidifier over various parameters. The model is based on the concept of shell and tube heat exchanger but the model is also able to estimate the mass transport through the membrane. Model is constructed in Matlab/Simulink<SUP>®</SUP>□environment to keep consistency with any other components model which we developed. Parametric study of the membrane humidifier is carried out in terms of selected geometric factors and operating factors.
대면적 셀 고분자 막전해질 연료전지의 열관리를 위한 수치 해석 모델 개발
유상석(Sangseok Yu),김한석(Hanseok Kim),이상민(Sangmin Lee),이영덕(Youngduk Lee),안국영(Kookyoung Ahn) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.10
A thermal model of proton exchange membrane fuel cell with large active area is developed to investigate the performance of the fuel cell over various thermal management conditions. The important sub-models of thermal model are an agglomerate structure electrochemical reaction model, a water transport model, and a heat transfer model. In this study, the operating temperature of the fuel cell is a maximum temperature inside the fuel cell considering durability of membrane electrolyte. The proper coolant temperature at given operating conditions is suggested so that the fuel cell is operated at the maximum power with minimum parasitic loss of thermal management system.