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유한성 한국재정학회 1996 재정논집 Vol.11 No.2
This study tries to analyse to contents of the textbooks of Public Finance in the early stage of modern Korean history. It is based upon the assumption that we can find the historical reason of the weakness in explaining the economic consequence of the action of public finance in real society with the weapons in the textbooks of thesedays. For this purpose, three main textbooks of Public Finance written in 1940s and 1950s by H. J. Choi, H. D. Lee and C. S. Han were taken. The methodological aspect in the text books was reviewed first, and after the thoughts in the Public Finance and the analysis of two main aspects of Public Finance-government expenditure and revenue - was followed. After analysing, I come to a conclusion that there qas a seed of the distortion of the contents of the textbooks of Public Finance of thesedays.
제트충돌냉각되는 반원 오목면에서 열전달 및 유체유동에 관한 실험적 연구
유한성,양근영,이준식,Yu, Han-Seong,Yang, Geun-Yeong,Lee, Jun-Sik 대한기계학회 1996 大韓機械學會論文集B Vol.20 No.9
An experimental study of jet flow and heat transfer has been carried out for the jet impingement cooling on a semi-circular concave surface. For the jet impingement on the concave surface, three different regions-free jet region, stagnation region, and wall jet flow region-exist, and the distributions of mean velocity and fluctuating velocity for each region have been measured by Laser Doppler Velocimeter. Of particular interests are the effects of jet Reynolds number, the distance between the nozzle exit and cooling surface apex, and the distance from the stagnation point in the circumferential direction. The resulting characteristics of heat transfer at the stagnation point and the variation of heat transfer along the circumferential direction including the existence of secondary peak have been explained in conjunction with measured impinge jet flow.