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강훈,조상현,김의한,강훈 대한알레르기학회 1999 천식 및 알레르기 Vol.19 No.3
Solar urticaria is a rare disorder in which immediate erythema and wheals are induced by ultraviolet or visible irradiation. This condition usually occurs in the third and fifth decades of life and is very rare in childhood. A 3-year-old girl presented with a history of an erythematous rash which had occurred on the face and neck, immediately after exposure to sunlight for one month. A diagnosis of solar urtiacria was made on the clinical reviews and phototest. Other photosensitive disorders could be excluded by the clinical and laboratory findings. She was treated with ketotifen and sun protection showing good early results.
강훈,이동언 대한건축학회 2004 대한건축학회논문집 Vol.20 No.11
The keyword to solve Deleuze's folding thought is the virtual. It contains all relations changing endlessly by differences as it is refusing the transcendental and absolute center but maintaining consistency. It makes it possible for the new approaching methods to escape from the previous established ones. It opens the way expressing the immanent life and the variety as endless differences. The architecture that always intensifies the virtual can be unfolded if the folding thought can be architecturally actualized. So, this paper interpret with the digital form making languages and the digital form transforming methods as diagrams which Peter Eisenman used it in his works on the basis of the Deleuze's folding thought. Furthermore, it propose the new digital form creating methods that can express fold's thought and that are excluded in Eisenman's methods. The suggested digital form creating methods can be thought as the most proper ones of making an architectural form closer to Deleuze's folding thought. These methods showed possibilities that they transform the digital design concepts combined with the contemporary architectural theory based on Deleuze into architecture.
냉동시스템의 운전조건에 따른열교환기 내장형 어큐뮬레이터의 성능 특성
강훈,박차식,전종욱,김용찬 대한설비공학회 2006 설비공학 논문집 Vol.18 No.12
The applications of multi air-conditioners into multiplex and high-rise buildings have been increased by replacing central air-conditioning systems. The pipe length and altitude difference between the indoor and outdoor units can be increased based on installation conditions, which may increase the possibility of flash gas generation at the expansion device inlet. The flash gas generation causes rapid reduction of refrigerant flow rate passing through the expansion device, yielding lower system efficiency. Accumulator heat exchangers have been widely used in multi air-conditioners in order to minimize flash gas generation and obtain system reliability. However, the studies on the heat transfer characteristics and pressure drops of accumulator heat exchangers are very limited in open literature. In this study, the heat transfer rates and pressure drops of accumulator heat exchangers were measured with refrigerant flow rate and operating conditions by using R-22. The heat transfer rate increased with the increase of refrigerant flow rate, while subcooling decreased. The heat transfer rate enhanced with the reduction of inlet superheat and subcooling due to the increased temperature difference between the accumulator and inner heat exchanger.