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남순현,최희경 호남대학교 2005 호남대학교 학술논문집 Vol.26 No.1
This study examined the relationship between child's physical abuse and child's delinquency. For the purpose of present study, the sample consisted of 229 5th and 6th grade grils. The result of the paper was as follows. First, child's delinquency consisted of four types - that is, curiosity of a day, avoidance behavior, disturbance of social(public) order, and peer group violence - which was based upon Kwak and Mun(1993)'s juvenile delinquency. Second, child's physical abuse was significantly positive correlated curiosity of a day, distrurbance of social(public) order, and peer group violence except for avoidance behavior. Third,the result showed that age, the number of sibling, birth order, sibling conflict, GPA and perception of one's countenance were related with child's physical abuse and child's behavior problem.
랜덤신호를 이용한 수직 Saccadic 안구운동계의 특성 연구
김남현,이용천,박상희 연세대학교 산업기술연구소 1984 논문집 Vol.16 No.2
In this paper, the peak velocity characteristics of the vertical eye movement system were measured and analyzed as a velocity control characteristics of the oculomotor system. Measurement system was composed by an infrared reflection method using limbus tracking principles. And vertical saccadic eye movements of selected 3 normal subjects were recorded for relatively wide angular distance 5-30d〔deg〕.
C-Scan 장치를 이용한 초음파 탐상에 관한 연구(Ⅰ)
玄淸男,韓熙悳 홍익대학교 산업기술연구소 2003 産業技術 Vol.13 No.-
In this study, the flaws in the several test specimens are detected by using a C-Scan system. The following results are obtained through this research; 1. How to detect the flows in the specimens 2. How to determine the depth of the flaws in the specimens 3. How to determine the size of the flaws in the specimens 4. How to determine if the specimen is in one piece or not and how to detect defects at the joining part 5. Analysis by using Linear Profile and 3D View In order to determine the depth and size of the flaws in the specimens precisely, it is very important to operate the C-Scan system properly.
마이크로컴퓨터를 이용한 동안계의 Saccade 특성 연구
박상희,김남현,이용천 연세대학교 산업기술연구소 1985 논문집 Vol.17 No.1
Saccade velocity characteristics of human oculomotor system using microcomputer-based measurement system are investigated. Various interfaces are designed and constructed in hardware, and random target signals are generated in software. Electroculographic method is employed as measurement system and Dynograph is used as recording system. Peak velocities are 207, 254, 388 and 418 (deg/sec) for 5, 10, 20 and 30 (deg), respectively.
정종헌,원휘준,최왕규,김계남,이성호,오원진 한국공업화학회 2003 응용화학 Vol.7 No.1
Liquid wastes containing uranium ions in high concentration of chemical salts havebeen treated by electrosorption on a activated carbon fibers(ACFs) electrode. Effectiveuranium (VI) removal is accomplished when the potential is -0.5V(vs. Ag/AgCl) ormore negative. For a feed concentration of 100mg/1, the concentration of U(VI) in thecell effluent is reduced to less than 1mg/1, and electrosorption capacity over 500mg/uranium/gACF is reached. The adsorbed uranium can be desorbed up to 99%for 20h by passing a 1.9N NaCl solution at pH 3 through the cell and applying a potential of +1.2V. The amount of desorbed uranium increased as the solution pHwas lowered and the applied potential increased.