Tennis競技에 있어서 Service와 Receive의 優位性에 關한 比較 硏究

李秀川 영남이공대학 1978 論文集 Vol.7 No.-

1. In case of the boys middle school, a win rate by Service is 5.9% higher than Receive. I can find discrepancy in the official approval, and so I can admit the predominance of Service. But, in the doubles Game, a win rate shows 2.5% difference. Discrepancy in the official approval is not, a win rate by Service and Receive is equal. 2. In the Girls middle school's singles Game, Service and Receive is equal in 4.8% difference. but in the doubles Game. Receive is 15.2% higher than Service. Showing discrepancy in the official approval, and so I can speak Receive side has the predominance. 3. I have found 9.7% and 9.0% discrepancy in the boys high school's singles. and doubles, and admit that Service side is Higher than Receive. 4. In the Girls high school's singles and doubles, because Service shows high appearence in 8.1% and 5.3% discrepancy each one of those, and so I can speak the predominance of Service side. 5. In case of Men college, Service-side is 6.5% higher than Receive-side. 6. In the General Men, because singles shows 2.0% discrepancy, I can not find discrepancy of the official approval. In the doubles, showing 10.8% difference, I can speak the predominance of Service-side. 7. In case of all of Men division, I can speak Service-side being better than Receive side as a win rate shows the tendency of 7.0% difference in the singles and doubles. 8. In case of all of women division, Service-side is on equality with Receive-side in 1.5% difference in the singles and doubles. 9. In case of all men and women division, I can find no difference between them.

프리즘을 포함한 쌍안경 대물렌즈 설계의 성능평가

이수천 대한시과학회 2008 대한시과학회지 Vol.10 No.1

목적: 프리즘을 포함한 쌍안경 대물경계 설계를 하였다. 방법: 대물경계의 초점 거리는 120 mm, F/#=4 그리고 FOV=2°로 하였다. 접착된 이중렌즈를 대물경으로 택하였으며 이에 따르는 프리즘의 크기를 결정하였다. 시야각은 2°이며 작으므로 구면수차와 코마수차 그리고 종색수차의 영향이 가장 크기 때문에 이를 중점적으로 제거하였다. 수차는 대물렌즈와 프리즘으로 balancing 하였으며, 남은 수차 항은 대물경계와 접안경계로 balancing 할 수 있다. 결과 및 결론: 프리즘을 포함한 대물렌즈계의 최적화 및 성능 평가는 ray-fan과 spot diagram 그리고 회절 광학적인 MTF를 계산하여 평가하였다. Purpose: We have designed a binocular objective system including prism. Methods: The focal length of objective system was 120 mm, F/#=4 and FOV=2°. The cemented doublet lens was chosen as objective, and in accordance with the objective, its prism size was also decided The field angle was 2° and smell-scale, So, it was greatly influenced by spherical aberration, coma, and longitudinal chromatic aberration. Accordingly these influential factors were eliminated in priority. Aberration term were balanced by the objective lens and prism, and the rest aberration term can be balanced by the objective system and the eye-piece system. Results and Conclusion: We have used a ray-fan, spot diagram and diffractive optical MTF to evaluate the optimization and properties of objective lens system that including prism.

소결 Ni - Al 합금의 미세 조직과 마르텐사이트 변태

이수천,이완재 대한금속재료학회 1989 대한금속재료학회 학술대회 개요집 Vol.1989 No.1

노사분규의 현황과 해결과제

이수천 부산수산대학교 1992 (最高經營管理者課程)論文集 Vol.1992 No.7

CCTV 카메라용 광학계 설계

이수천 한국안광학회 2008 한국안광학회지 Vol.13 No.1

목적: 본 논문은 CCTV 카메라용 렌즈 설계를 triplet형으로 광학 설계를 하였다. 방법: 초점거리를 56mm, 유효 경을 20mm 그리고 화각을 5o로 한 망원 렌즈 형태이고, 설계하고자 하는 카메라의 CCD array detector의 크기를 2/3인치로 하였다. 결과: 광학계의 성능은 ray-fan과 spot diagram 그리고 회절 광학적인 MTF를 계산하여 평가하였 고, 파장은 Fraunhofer C, d 및 F-line에 대해 achromat 되었으며 MTF 값도 tangential과 sagittal MTF 모두 50 line pairs/mm의 공간 주파수에 70% 정도가 나왔다. 결론: triplet형으로 비교적 저가 보급형 감시용 목적 CCTV 카메라 를 설계하였고 충분히 실용적이라 생각된다. Purpose: This study is to design a triplet optical system for CCTV camera lens. Methods: It was a telescopic lens with 5o field angle, 56 mm focal length, 20 mm diameter, and 2/3 inches sized CCD array detector. Results: The performance of the subject optical system was evaluated by applying ray fan, spot diagram, and diffraction optical MTF. The wavelength was achromatized at Fraunhofer C, d and F-line, and both MTF and tangential & sagittal MTF shows more than 70% at spatial frequency of 50 linepairs/mm. Conclusions: The marketable triplet optical system for CCTV camera was designed and its utility was considered.

大邱市와 中都市 學生들의 運動興味에 關한 硏究分析 : 人文系女子高等學校를 中心

李秀川 영남이공대학 1978 論文集 Vol.7 No.-

I. The High School Girls, large city as well as medium city are fond of recreational sports and take pleasure in doing sports. 2. The tend to neglect athletic sports, but, tend not to neglect Gymnastic exercises. 3. The most grade the Higher preference for the Sports, that can be played in narrower space and physical safety is guaranteed in. Like table-tennis, badminton or Volley ball to those that require. 4. The most Students hope to learn the events not to treat in the ordinarily curriclunl. Like horse riding, Skate, Ski. Swimming or tennis.

아동의 임파워먼트가 행복감에 미치는 영향: 지역아동센터를 중심으로

이수천,박진희,조미애,최윤석 한국학교사회복지학회 2013 학교사회복지 Vol.- No.25

This study explores the empowerment factors which affect the subjective well-bing of some 291 community child center children, aged between 7 to 15 years old. The subjects of the study were selected from 16 community child centers located in Seoul and Gyeonggi province. The major findings were as follows. First, the intrapersonal empowerment affects the subjective well-being by simple regression analysis. Second, the interpersonal empowerment affects the well-bing by simple regression analysis. Third, the self-esteem, the user satisfaction in community child center use, and the intrapersonal empowerment except the interpersonal empowerment affect the subjective well-being by multiple regression analysis. Based on these results, the following conclusions are suggested. It is necessary to pay attention on the empowerment, specially on the intrapersonal empowerment, in order to increase the subjective well-bing of the community child center children. And it is necessary to provide programs promoted empowerment. 행복추구는 인간의 기본적 권리로서 이는 아동에게도 동일하게 적용되는 것이다. 아동의 행복은 헌법과 아동복지법 등에서 권리로 천명되고 있지만 이에 대한 실증적인 연구는 많이 드러나지 않고 있다. 임파워먼트는 아동이 가지고 있는 강점 및 자원을 충분히 활용하는 것을 이른다. 특히 관련연구들을 통하여 아동에게 있어 임파워먼트는 행복감에 영향을 미치는 요인임을 추정할 수 있다. 아동의 임파워먼트가 행복감에 영향을 미치는 것이 밝혀지면 사회복지실천에 있어 아동의 행복을 위한 구체적인 논의들을 이어갈 수 있다. 따라서 본 연구는 이를 실증적으로 밝히기 위하여 서울, 경기 지역 16개 지역아동센터에서 7세부터 15세까지 291명의 아동을 대상으로 임파워먼트와 행복감의 영향관계를 살펴보았다. 연구결과, 먼저 개인내적 임파워먼트는 행복감에 영향을 미치는 요인으로 나타났으며 대인관계 임파워먼트 역시 행복감에 영향을 미치는 요인으로 나타났다. 그런데 다른 변인들과 함께 영향관계를 파악하기 위하여 위계적 회귀분석을 한 결과 자아존중감, 지역아동센터만족도, 개인내적 임파워먼트는 아동의 행복감에 영향을 미쳤으나 대인관계 임파워먼트는 영향을 미치지 않는 것으로 나타났다. 대인관계 임파워먼트의 영향력이 다른 요인들에 의하여 상쇄되었음을 보여준다. 영향력의 크기는 자아존중감, 지역아동센터만족도, 개인내적 임파워먼트 순이었다. 연구 결과에 따라 아동의 행복을 증진시키기 위하여 특히 아동이 가지고 있는 강점 및 자원인 임파워먼트를 강화시키는 것이 필요함을 제언하였다.

專門大學 경영體育의 效果的인 運營方案

李秀川 영남이공대학 1981 論文集 Vol.10 No.-

The purpose of this paper is to study an effective management scheme of cultural physical education in th junior college. The contents of my study are as follows: 1) Students like mainly baseball, volleyball, table tennis, soccer and mountain climbing only because they can play easily. 2) The result of investigation of physical activity on middle and high school ages shows that they have learned and experienced items of their school curriculum in the school, with the exception of the curriculum out of school. 3) In junior college students conscience realities, I found that they want to manage sports of real life and a theory of utility or practice. therefore it means that theory is important in the school physical education. as a result of 1), 2) and 3), it is to be wished that cultural physical education would balancely manage their taste on scheduled plan, that is to say, a lesson contents must include that the students wants to do item, and theory for two hours per week.

학술발표 : 제1부 영양보조물과 운동 : 카페인 또는 카르니틴이 운동시 흰쥐의 에너지 동원에 미치는 영향 - 1회 투여와 장기복용의 비교 -

이수천,류승필 한국운동영양학회 1998 한국운동영양학회 학술발표논문집 Vol.- No.5

Mini Basket Ball의 基礎技術을 爲한 Program

李秀川 慶北大學校 師範大學 體育學硏究會 1984 體育學會誌 Vol.12 No.-

This study is four process in teaching program under the three great elements of basketball, basing on learning and experiencing through play. There is divided one process into eight phases, they are planned, to have interesting to Mini Bas. Acording to being planned programs, leaders need to know that players must exercise reasonable all process of basic technique in performing the exercise of group technique, of indibidual and personnal technique, and of connetion technique, and then they have to know some principles. Those are as follows. ○To have competitive consciousness with opponet. ○To make beginners have satisfaction and pleasure of next exercise. ○To make beginners see activity objects of phases. ○To be farmilliar with simple rule during training. ○To be acquainted with themselves results ohtained or not.