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이준웅,김왕곤,김봉야,Lee, Joon-Ung,Kim, Wang-Kon,Kim, Bong-Heup 한국고무학회 1986 엘라스토머 및 콤포지트 Vol.21 No.2
Studies has been carried out on the characteristics of thermally stimulated current for polypropylene in the temperature range of $293[^{\circ}K]{\sim}403[^{\circ}K]$. The main peak observed at $366[^{\circ}K]$, as may be $\beta$ peak in conventional nomination, is believed to be depolarization current originated from the relaxation of "CO" group in monomer structure. The activation energy for the observed peak has been concluded to be in the range of $0.6{\sim}0.7[(eV]$ at $360[^{\circ}K]$ by the initial rise method. Furthermore, the initial density of carriers were calculated about $10^{22}/m^3$
도시철도 열차운영관리시스템의 통합구축 방안에 관한 연구
홍용식(Hong Yong-Sik),김왕곤(Kim Wang-Kon),홍순흠(Hong Soon-Heum) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
Subway is working in the construction of station and wayside equipment which was controlled by central and local control operating system for more efficient management. Traffic controlled by functional integration to be interlocked but each part is constructed and operated individually that is not efficient. Therefore, this paper offer to plan of integrating central and local system in one place of each feild. Functional integration plan will help central and local system to link strengthening. This is also offering to integrating central of an officer in command and integrating local of control station and office.
김성관(Sung-Kwan Kim),김수석(Soo-Seok Kim),김왕곤(Wang-Kon Kim) 한국조명·전기설비학회 2002 한국조명·전기설비학회 학술대회논문집 Vol.2002 No.-
Consideration for parallel operation in a high power system has been increased due to the advantages of parallel operation like as high productivity, simplicity of design, and redundancy of power. This paper discussed the parallel operation of DC-DC Converter, Which Can be used as a high power system, is studied. Based on the small signal model of DC-DC Converter, the simple and exact power stage model of parallel operation system is derived and the parallel operation system using current balance method for the uniform current distribution among the parallel operation system is discussed. To verify the high performance of the proposed DC-DC converter system for parallel operation, the simulation test of the parallel operation, which has 2 Converter modules, is accomplished.