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정재후(J. H. Jung),백승우(S. W. Pack),안도희(D. H. Ahn),김광락(K. R. Kim),김시형(S. H. Kim),심준보(J. B. Shim),김가영(K. Y. Kim),김택진(T. J. Kim) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
A PRIDE cadmium distiller can distill cadmium and salt from a LCC(Liquid Cadmium Cathode) deposit in both an electrowinning and a residual actinide recovery equipments. The LCC deposit is a mixture of U/RE/Cadmium metal alloy covered with LiCl-KCl eutectic salt which are put in a alumina crucible. When the LCC deposit at the upper part of a distiller vessel is distilled at vacuum, the cadmium and eutectic salt are evaporated and condensed at the lower part and the U/RE metal powders remains. The PRIDE Cadmium distiller consists of distiller vessel, furnace, vacuum pump and control panel assemblies and its capacity is 10 kg-cadmium per batch in an argon cell. The distiller was designed for easy remote operation using MSM, BDSM and crane. Design of the distiller was checked through 3D simulation tests and improved through remote control tests using mock-up equipment. The PRIDE cadmium distiller shall be operated and repAred according to the remote operation and maintenance procedure. When this equipment was set up in PRIDE, the whole equipment was transferred by overhead crane and was set up at appointed spot of PRIDE argon cell after it was entered into argon cell through transfer lock. We derived operation of equipment and improved its device according to conservative assessment factors by accomplishing blank test related to operability test of driving part and process parameter for start-up test. Therefore PRIDE cadmium distiller after the blank test device was advanced and supplemented.
저온 주사 레이저 현미경(LTSLM)을 이용한 YBCO 초전도 선재의 불균질성 연구
박상국,김종만,이상봉,김상훈,김가영,이형철,Park, S.K.,Kim, J.M.,Lee, S.B.,Kim, S.H.,Kim, G.Y.,Ri, H.C. 한국초전도학회 2009 Progress in superconductivity Vol.11 No.1
Low temperature scanning laser microscopy (LTSLM) can be used for a two-dimensional display of bolometric response arising from the localized excitation of a sample by the focused laser beam. In this study, the distribution of critical temperature ($T_c$) and critical current density ($J_c$) in YBCO coated conductor were analyzed using LTSLM. For improving the temperature stability, we have modified the system into a double-shielding type. Through the modification, the temperature stability was successfully improved from ${\pm}10mK\;to\;{\pm}2mK$. The superconducting properties of YBCO coated conductors were measured for the sample of a narrow bridge type using wet etching process. The spatial non-uniformity of the ac voltage response, ${\delta}V(x)$, which is proportional to ${\partial}\rho(x,J_B)/{\partial}T$ in the transition temperature region could be observed and displayed in a two-dimensional image.
음란물 접촉과 청소년의 성 가치관의 변화 : 서울 일개 중학교를 중심으로
김가영,김슬기,김지아,박다현,연현숙,오연경,주혜인,차근영 이화여자대학교 간호과학대학 2011 이화간호학회지 Vol.- No.45
This document's purposes are to give basic data in the viewpoint of nursing through investigation on the change of teenager's sexual values resulted from pornography experience. 150 middle school boy students who were in first, second and third grade were surveyed. Investigated place is limited only one school which is located in Seoul city. 123 Data was available among the 150 surveyed data. Collected data are statistically processed using SPSS program. To verify the reliability, Cronbach'a was applied and analysed using t- test, ANOVA. In short, the main results of this survey are as follows. 1. The general characteristics of surveyed students: Most of surveyed students were middle school 3rdgrade(42.5%) who had computer at their room ranked first (47.2%). The average using time of internet was more than 2 hours (35.4%, the highest rate). 76.6% of surveyed students answered that they had experience of watching the pornography. 2. 53.1% of surveyed students, which is the highest ratio, experienced pornography before they entered middle school. The curiosity rank first (57.%) about the question why they watch pornography. In case of students who had no experiences of pornography answered that they didn't watch pornography because they had no concern on pornography (51.6%). 3. On sexual values, the average scores of pornography non-experienced (3.77±0.46, full score: 5..0) are higher than those of pornography-experienced (3.53±0.51), showing statically significant difference against pornography -experienced group. 4. Findings of sexual values scores on general characteristics were as follows; The higher in grades, the lower in scores. Top-graded students gained higher scores of sexual values than low graded students showing statistically significant difference in both case of characteristics.