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특집 : 레이저 기반 초정밀 초고속 가공시스템 - 복합형 자외선 DPSS(diode pumped solid state) 레이저 발진기 기술
노영철,이영락,유봉안,신우진,정창수,No, Yeong-Cheol,Lee, Yeong-Rak,Yu, Bong-An,Sin, U-Jin,Jeong, Chang-Su 재료연구소 2010 機械와 材料 Vol.22 No.1
초미세 레이저 가공기술은 미세화, 대면적화, 고속화의 방향으로 발전되고 있다. 이에 따라 이를 대응한 레이저의 사양도 파장의 단파장화 또는 펄스폭의 극초단화, 펄스 반복률의 고반복률화, 출력의 고출력화가 요구되고 있다. 극초단 펄스레이저는 사용자 편의성, 안정성 측면에서 산업체의 요구에 미흡하다. 이에 따라 산업용 초미세 레이저 가공을 위한 광원으로 고품질, 고출력의 단파장 자외선 레이저 활용에 집중하고 있다. 현재 고품질 자외선 레이지는 DPSSL 형태로 구성되어 출시되고 있고, 거의 대부분 수입에 의존하고 있다. 국내외 자외선 UV 현황을 간단히 기술하고, 광주과기원 고등광기술연구소에서 산업원천기술개발사업의 일환으로 개발중인 복합형 자외선 DPSSL에 대한 개발 계획 레이저 특성과 현재의 개발 진행 상황을 소개한다.
Roland Morris Scale(R.M.S)에 의한 척추질환자들의 운동습관과 생활습관에 관한 조사연구
이은주,권봉안 한국안전교육학회 2001 한국안전교육학회지 Vol.4 No.2
This paper aims to provide basic data regarding sports and life habits according to lumbago gymnastic programs of spinal patients by Roland Moms Scale(R.M.S). To attain this goal, this study organized sample frame of about 250 spinal patients including male and female persons coming to A hospital, Seoul due to spinal diseases and diagnosed as spinal diseases such as disk dislocation, chronic lumbago, spinal stiffness, spinal bent, spinal stricture and receiving lumbago gymnastic programs and sampled about 207 persons considering the rate of participants and non-participants according to the following demographical features and lumbago gymnastic sports programs. As the instrument of for collecting data of this study, the questionnaire translated from that of Roland Morris, whose validity and objectivity for researching into their sports and life habits was used. The questionnaire is composed of total 43 questions including 5 questions of age, gender, occupation, spinal disease name, and 4 questions of sports habits, events, frequency, time, and 34 questions of life habits such as drinking, smoking. The collected data was analyzed using SPSS/PC Windows 10.0 statistic package program. The concrete data disposition method for analysis is as follow. Demographical features as background variables were processed by technical statistic analysis, and data analysis according to participation at sports variables as independent variables was analyzed by tOtest. The difference of sports habits and life habits according to demographical features was analyzed through on-way-ANOVA and analyzed data was verified using Tukey-HSD. The research conclusion obtained through the above study method and procedure and data processing results is as follow. 1. There was no significant difference in sports habits of spinal patients according to demographical features, but significant difference in some items of sports habits according to age, occupation and disease. 2. There was no significant difference in sports habits of spinal patients according to gender, age, occupation and disease according to demographical features, so no significant difference in sports habits according to demographical features. 3. There is difference in sports habits of spinal diseases according to participation at 3 step lumbago gymnastic sports programs(.001). There is greater change in life habits in participants than non-participants in sports habits of spinal patients according to participation in lumbago gymnastic sports program. 4. There is difference in life habits of spinal patients according to participation of 3 step lumbago gymnastic sports programs(.008). There is greater change in life habits in participants than non-participants in sports habits of spinal patients according to participation in lumbago gymnastic sports program.
이형엽,권봉안,이영애 한국안전교육학회 2002 한국안전교육학회지 Vol.5 No.1
The school constitutes an environment of great concern for public health as it is the location of occurrence of a major proportion of injuries sustained by adolescent. The aim of the study were to investigate in effect of personality factors of middle school student on safety-accidents in school. For these aims, five targets were established: (1) how to gender and location effects safety-accidents in school. (2) how to motor skill effects safety-accidents in school. (3) how to extroversions-introversion in personality effects safety-accidents in school. (4) how to impulsivity effects safety-accidents in school. (5) how to impulsivity and extroversions- introversion interacts safety-accidents in school. The number of participants were 495(man=234, female=261), who took part in physical classes. The results were as follows: (1) 24.6 percent of responded student have experienced safety-accidents in school during 1 year period. (2) boys shows higher rates of safety-accidents in school than girls. (3) safety-accidents in school have taken place mai y indoors, (4) the main causes of safety accident in school are student factor (5) the case of impulsivity effects safety-accidents in school (6) the case of extroversions-introversion had no effects.
고등학교 배구선수들의 스포츠 상해원인과 치료에 관한 조사 연구
이경진,권봉안 한국안전교육학회 2002 한국안전교육학회지 Vol.5 No.1
The purpose of the study were to investigate of injury style and their treatment with the highschool volleyball players. To achieve the purpose of the study, 225 volleyball players were selected as subjects. The survey questionnaires were used to collect the data. The questionnaires that was used by Bae(1998) in this study. The statistics selected in this study were descriptive statistics and chi square test. As a rest of the analyses of collected data, the following conclusions were obtained: First, there was a significant indifference in sports injure type, sports injure factor, sports injure part by population statistics. Secondly, there was a significant difference in sports injure type, spells injure factor by a technological level, but there was a significant indifference in sports injure part by a technological level. Thirdly, there was a significant difference in sports injure type, sports injure factor by position, but there was a significant indifference in sports injure part by position.
權鳳顔,李圭成,Fred L.Perterson,Ph.D. 한국체육대학교 부속 체육연구소 1985 체육연구소논문집 Vol.2 No.-
This Review Explores the Background, procedure and progress of school and Community health promotion in the United States. The Review elucidates how school and community health education programs have contributed to the promotion of national health. The role of voluntary health agencies in supporting research is debated. The thirteen current National objectives established to promote health and to prevent chronic diseases by 1990 are explained.