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흐름비등열전달을 활용한 회로 냉각장치에 관한 실험적 연구
김범영(Beom Young Kim),송솔(Sol Song),박창용(Chang Young Park) 대한설비공학회 2015 대한설비공학회 학술발표대회논문집 Vol.2015 No.11
The purpose of this study is to find the convective heat transfer coefficient of the cooling system by using FC72 in a variety of heating rate and flow rate. The experimental variable flow rate and heating rate. Test section is made of copper and inner fin has width is 1 mm, height 5mm, length is 20 mm. In addition, the pressure drop between the inlet and the outlet in test section and compared them. Measurement results showed the high convection heat transfer coefficients at high electric heating conditions. Also, They presented that the quality was important parameter to the change of heat transfer coefficients in the cooling unit.
유진숙,김범영,이민지 한국사회복지교육협의회 2015 한국사회복지교육 Vol.31 No.-
This research aims at analyzing the effect of a gendered psycho-sex education program on strengthening of self determination. As qualitative analysis half structured in-depth interviews was implemented in targeting 10 college students, who participated in the education program. Research results show that the gendered psycho-sex education exerts educational effect on strengthening of self determination. The result of analysis demonstrates significant effect on strengthening of self determination. Especially sexual autonomy of male students without sexual experiences was significantly improved after attending the education program. 본 논문은 남녀 간 성심리 차이의 정확한 이해가 자기성결정권 강화에 기여한다는 문제의식 하에 ‘성인지적 성심리교육 프로그램’을 개발․실행하였다. 교육프로그램이 자기성결정권의 강화에 미치는 영향은 질적 연구를 통하여 분석하였다. 이를 위해 성심리교육 프로그램에 참여한 남녀 대학생 총 10명을 대상으로 반구조화된 인터뷰가 수행되었다. 연구 결과는 성인지적 성심리교육이 자기성결정권의 강화에 유의미한 교육적 효과를 발휘하고 있음을 보여주고 있다. 반구조화된 심층인터뷰 결과는 남녀 공히 자기성결정권의 강화 효과를 보여준다. 대부분의 참여자들이 여성과 남성의 성심리 차이를 이해함으로써 성행동에 보다 신중하게 접근하게 되었다고 답변하였다. 특히 다수의 남성 참여자들은 심리적․정서적 유대를 전제하는 여성의 성심리 작동방식을 알게 됨으로써 보다 신중하게 성행동에 돌입하게 되었다고 답변하였다.
광전자 분석 실험을 이용한 $Ba(Fe_{1-x}Ru_x)_2As_2$ 물질의 전자구조분석
정원식,김용관,김범영,엄만진,김준성,김창영,Jung, W.S.,Kim, Y.K.,Kim, B.Y.,Matsunami, M.,Kimura, S.,Eom, M.J.,Kim, J.S.,Kim, C. 한국초전도학회 2011 Progress in superconductivity Vol.12 No.2
We performed angle resolved photoelectron spectroscopy (ARPES) studies on Ru doped $BaFe_2As_2$ with various Ru contents. Ru, which is doped into a parent compound $BaFe_2As_2$ and substitute Fe, does not donate or accept electrons. However, it induces superconductivity. From ARPES data along the high symmetry cuts and Fermi surface maps, we investigate the electron correlation and carrier density at the Fermi level. We observe that the Fermi velocity increases with Ru doping, suggesting reduction in electron correlation. In addition, we address issues on local vs. itinerant pictures for the magnetism in $BaFe_2As_2$.
송태근,이범석,최규범,권상효,김범영,정기호,문지원,이기정,홍권,남산 한국물리학회 2014 Current Applied Physics Vol.14 No.4
Amorphous Pr0.7Ca0.3MnO3 (APCMO) films were grown on a Pt/Ti/SiO2/Si (PteSi) substrate at temperatures below 500 C and the Pt/APCMO/PteSi device showed unipolar resistive switching behavior. Conduction behavior of the low resistance state (LRS) of the Pt/APCMO/PteSi device followed Ohm’s law, and the resistance in LRS was independent of the size of the device, indicating that the conduction behavior in LRS can be explained by the presence of the conductive filaments. On the other hand, the resistance in the high resistance state (HRS) decreased with increasing the device size, and the conduction mechanism in the HRS was explained by Schottky emission.