http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : JayJ.Kim (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
Voronoi diagram as an analysis tool for spatial properties for ceramics
김덕수,정용재,JayJ.Kim,김동욱,윤광석 한양대학교 세라믹연구소 2002 Journal of Ceramic Processing Research Vol.3 No.3
While research in ceramics has focused on physical experiments, the need for computational aids is increasing more and more. Among several computer simulation tools for the design and analysis of various aspects of ceramics, the Voronoi diagram is introduced in this paper. The Voronoi diagram is a powerful tool in computational geometry which provides all spatial information among geometric objects in a system with an efficient data structure. In this paper, we present the properties of Voronoi diagrams and introduce various applications appropriate for research in ceramics.
-
Yong-ChaeChung,김윤석,InYongKang,HanchulKima,김덕수,JayJ.Kim 한양대학교 세라믹연구소 2002 Journal of Ceramic Processing Research Vol.3 No.3
The equilibrium lattice constants for various rock salt structure type compounds were predicted by an ab-initio pseudopotential method adapted in the Vienna Ab-initio Simulation Program (VASP), and the values were compared with the experimental lattice constants found in the literature to check the transferability of the pseudopotential of each atom. The results clearly indicate that a well-transferable pseudopotential is essential to predict the material properties of complex ionic systems consisting of many different kinds of atoms. The equilibrium lattice constants for various rock salt structure type compounds were predicted by an ab-initio pseudopotential method adapted in the Vienna Ab-initio Simulation Program (VASP), and the values were compared with the experimental lattice constants found in the literature to check the transferability of the pseudopotential of each atom. The results clearly indicate that a well-transferable pseudopotential is essential to predict the material properties of complex ionic systems consisting of many different kinds of atoms.
-
최명환,조상은,임진성,신형섭,Zhi Li,JayJ.Kim 대한기계학회 2018 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.32 No.12
Heating and cooling energy consumption of buildings accounts for a large portion of global energy use and is significantly affected by the air conditioning system in the buildings. In order to predict the energy performance of buildings, various energy simulation engines have been developed and recently applied to the BIM data of buildings. However, due to the interoperability between them, estimating heating and cooling energy at the design stage of the air conditioning system, in collaboration with the building model, still lacks of efficiency and accuracy. In this paper a highly efficient design framework with enhancement of interoperability that enables the designing of a variable refrigerant flow (VRF) type air conditioning system in BIM environments and to analyze its energy behavior is proposed. The framework covers i) computing the energy load of a building, ii) designing a VRF system that includes equipment selection, layout and piping, and iii) predicting energy consumption by the system with consideration of the building’s thermal properties and annual weather conditions. The novelty of the proposed approach lies in the fact that the layout and piping for air conditioning system are enabled inside a BIM environment to maximize interoperability. We implemented the framework as an add-in program to the commercial BIM software and present its accuracy in comparison with the reference data provided by ASHARE.
-
Jong-Whi Park,Yong-Rae Jang,Hyoungsub Shin,Hak-Sung Kim,JayJ.Kim 한국정밀공학회 2021 International Journal of Precision Engineering and Vol.8 No.6
In this study, a silver (Ag) coated copper (Cu) core–shell microparticles paste were fabricated and screen-printed on Polyimide (PI) substrates. It was sintered via intense pulsed light (IPL) sintering technique. IPL irradiation condition (i.e. pulse duration, irradiation energy) was optimized to obtain high conductivity and good oxidation resistance characteristics. To increase the packing density of the pastes and its oxidation resistance, Ag nanoparticles (Ag NPs) were added to Cu/Ag core–shell microparticles (core–shell MPs) paste with optimal mass ratio. To analyze the sintering and oxidation characteristics of hybrid pastes (Ag NPs + core–shell MPs), a scanning electron microscope (SEM) and a focused ion beam (FIB) was used. To demonstrate the mechanism of the sintering process on hybrid pastes, heat generation at the junctions between particles were simulated using Multiphysics COMSOL program. The packing density of the hybrid pastes was investigated using CATIA digital mock-up (DMU) program. In addition, to confirm the heat generation with respect to the packing density of the hybrid pastes, in-situ temperature monitoring process was conducted. As a result, hybrid paste pattern sintered with IPL showed excellent oxidation resistance (resistance increase rate in 300 °C for 5 h: 4.92%), and high electrical conductivity (6.54 μΩ cm).
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
