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이선경,권순석,LEE, Sun-Kyoung,Kwon, Soon-Suk 대한치과기공학회 2019 대한치과기공학회지 Vol.41 No.4
Purpose: The purpose of this study was to enhance curriculum satisfaction of dental laboratory technology and curriculum demands. Methods: From March 5 to March 31, 2019, a self-written questionnaire was conducted for 195 students from the department of dental laboratory technology at a university in Gangwon-do. The analytical methods used were descriptive statistical analysis, frequency analysis, cross analysis, correlation analysis and reliability analysis. The collected data was used for SPSS 18.0 for Windows statistics program. Results: The demand of the school education includes systematic experiments and demand of practical training, acquisition of professional knowledge, introduction of advanced technology curriculum, reduction of national examination-oriented curriculum, and increased professionalism and professionalism as professional professionals. Investigated by the ethics. In addition, they were strongly aware of the necessity of digital education related to CAD / CAM, and there was a high demand for how to operate programs, scanning and design. Conclusion: The curriculum needs to be reorganized to cultivate dental technicians in a changing era, and in-depth centralized curriculum in fields with high practical needs, as well as vocational and ethical views as professionals.
부채형 밀폐공간내에서의 자연대류 열전달에 대한 공간각의 영향
배태열(Bae Tae-Yeol),권순석(Kwon Sun-Suk) 한국태양에너지학회 1993 한국태양에너지학회 논문집 Vol.13 No.1
온도가 다른 평행한 원형 벽 2개의 단열 벽으로 구성된 부채형 밀쳬 공간 내에서의 자연대류 열전달 현상을 유한 차분법으로 수치해석 하였다. Rayleigh수 10³-10^5, 공간각 30˚~180~의 범위에서 온도 분포 및 속도 분포를 나타내고 평균 Nusselt수를 /Nu=C(Ra_l)^m의 형태로 나타내었다. A numerical study of natural convection heat transfer confined by circular parallel walls at different temperatures and flat adiabatic walls is investigated for Rayleigh numbers from 10³ to 10^5 and sectorial angles from 30˚ to 180˚. It is used by a finite difference method to solve the governing equations. The results show velocity and temperature distributions.<br/> Mean Nusselt numbers are shown by /Nu = C(Ra_l)^m