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몬테카를로 시뮬레이션을 적용한 다면 실내공간내의 조도계산에 관한 연구
김희철(KIM.H.C),김훈(KIM.H),지철근(CHEE.C.K) 한국조명·전기설비학회 1992 한국조명·전기설비학회 학술대회논문집 Vol.1992 No.-
In this paper, The Monte Carlo Simulation is performed in complex geometries which are composed of obstacles intercepted path of photon. Light is assumed to be particle and has particular direction and weighting value. The illuminance distribution is calculated proportional to the summation of weighting values striking area element. The result of simulation is consistent with that of experiments in a few error.
SMART연구로의 보수적인 급수관 파단사고 해석방법론 개발
정영종(Y. J. Chung),김수형(S. H. Kim),김희경(H. K Kim),김희철(H. C. Kim),지성균(S. Q. Zee) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Various sizes and types of advanced small and medium sized nuclear reactors are currently nuder development worldwide. The SMART-P, which is an integral pressurized water reactor is one of those advanced types of small sized nuclear reactor. a Feedwater pipe break accident is one of the most important accidents in the safety of the SMART-P plant. Decreased feedwater flow rate to the steam generators causes a decrease in the heat extraction from the reactor coolant system, resulting in a increase of the primary coolant temperature and pressure Performed sensitivity analysis to find parameters affecting seriously in SMART-P's feedwater pipe break accident. According to these sensitivity analysis results, an initial pressurizer pressure, a moderator reactivity coefficient, a power level and a break size are major parameters for the maximum pressure of the reactor coolant system point of view. the pressure in the reactor coolant system and the secondary system for all the cases investigated, remains below 18.7㎫ which is a safety criteria for SMART-P.
39 점막하 침윤암의 심달도와 림프절 전이에 따른 기질단백분해효소와 그 억제인자의 발현 및 신생혈관형성
정성애 ( S. A. Jung ),양석균 ( S. K. Yang ),김정선 ( J. S. Kim ),명승재 ( S. J. Myung ),심기남 ( K. N. Shim ),임석아 ( S. A. Im ),정훈용 ( H. Y. Jung ),김희철 ( H. C. Kim ),유창식 ( C. S. Yu ),김진천 ( J. C. Kim ),홍원선 ( W. S. Hong 대한소화기학회 2002 대한소화기학회 추계학술대회 Vol.2002 No.-