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      • 가스터빈 연구개발의 현황 및 전망

        김광호 대한기계학회 1990 大韓機械學會誌 Vol.30 No.6

        가스터빈은 브레이턴사이클을 이용한 것으로서 피스톤 왕복엔진과 함께 동력기관으로써 지금까지 사용되고 있으며 특히 경량, 고출력의 장점으로 인해 항공기 엔진의 추진기로서 많이 사용되고 있다. 1905년 프랑스에서 압축비 4.8회전수 4250rpm으로 40HP의 출력을 내는 현재와 같은 형 태의 가스 터빈을 개발한 이후 많은 발달과 함께 2차 대전 후에는 항공용 뿐만 아니라 발전용, 동력용 등 산업용 엔진에도 응용되었다. 세계적으로는 유럽이 가스 터빈에 관한 연구를 미국보 다 앞서 활발히 진행하였으며 1957년 General Electric사의 F-4팬텀에 사용된 J-79터보 제트 엔진을 개발함으로써 가스터빈 엔진분야에 미국이 주도권을 잡게 되었고 많은 전문회사가 가스 터빈 엔진설계 제작에 참여하고 있다. 이와 같이 가스 터빈에 대한 개발연구가 계속 이루어진 것은 가스 터빈이 다른 동력기관 보다 단위 중량당 많은 출력을 낼 수 있고, 각 요소들이 회전 운동을 함으로써 고속운전을 할 수 있고, 부하 변동에 빨리 적응하며, 마찰부분이 적어 윤활유 소비가 적은 장점들이 있기 때문이다. 본 글에서는 이와 같은 가스 터빈 연구개발의 국내외 현황 및 그 전망에 대해서 기술하고자 한다.

      • SCOPUSKCI등재

        CO2 에 의한 Char 의 가스화반응시 세공구조 변화

        김광호,이선희,조병린,장윤호 한국화학공학회 1987 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.25 No.6

        CO₂ 가스화반응에 의해 얻은 호도각 char의 겉보기밀도, 세공반경분포, 세공용적 및 비표면적 등을 추정하여, 가스화방응시 반응온도와 전환율에 따른 char의 세공구조 변화를 조사하였으며, 이론모델(pore volume model, random pore model)과 비교하였다. CO₂ 가스화반응에 의해 형성된 호도각 char는 10Å(micro pore)과 10⁴Å(macro pore) 부근의 세공이 잘 발달된 이원적 구조를 가지고 있었다. 반응 온도가 낮을수록 char의 비표면적과 micro pore 용적은 증가하였으나 macro pore 용적은 변하지 않았으며, random pore model이 가스화반응에 의해 얻은 char의 세공구조값과 비교적 잘 일치하는 것을 알 수 있었다. A char was made from walnut shell which was gasified in CO₂ 7atmosphere and its physical properties such as pore size distribution, density, pore volume and surface area were measured. The effects of reaction temperature and conversion(X_c) on the pore structure change of char were examined and compared with the theoretical values from ihe mathematical modets (pore volume model and random pore model). The char which has bimodal pore distribution near by 10Å (micro pore) and 10⁴Å (macro pore) was obtained by CO₂ gasification reaction. At lower reaction temperatures the surface area (㎡/g-s.m.) and the micro pore volume (㎤/g-s.m.) were increased but the macro pore volume was not affected by the reaction temperatures. It was found that the random pore model was agreed with the pore structure data which were obtained from gasification of the char.

      • 국내 종합병원의 공간구성과 면적배분에 관한 연구

        김광호,양기영,문찬영,임성재,이경회 대한건축학회 1999 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.19 No.1

        In planning hospitals, one of the important procedure is to assess the total floor area and to decide the layout and proportion of spaces of various departments composing a hospital. For reference to architects in the space program of the coming general hospital buildings, this study attempts to obtain and analyze basic data of the use of space in recent hospital buildings on the basis of the status of medical institute and the medical care forecast. Eleven hospitals as a sample chosen for this study.

      • KCI등재

        장애아 어머니의 생활체육 참여와 생활만족의 관계

        김광호,오광진 한국특수체육학회 2004 한국특수체육학회지 Vol.12 No.4

        The purpose of this study was to investigate the relationship between participation in sports activities and life satisfaction for mothers of children with disabilities. Using a systematic stratified cluster random sampling method, thirteen special school were randomly selected from Seoul and Kyunggi province in Korea. The sample number in actual analysis was 480 mothers of children with disabilities. The questionnaire concerning life satisfaction was developed by Diener, Emmons, Larsen, and Griffin(1983) and consisted of five items. The reliability of the questionnaire was confirmed by Chronbach's a coefficient(a=.873). Statistical methods employed in this study were ANCOVA and multiple regression analysis. The results of this study were as follows ; first, household income, mother's occupation, and time spent on housework had significant effects on the life satisfaction Second, the nature of the child's disability had significant effects on the life satisfaction. Third, the children's education had significant effects on the life satisfaction. Fourth, the degree of life satisfaction ranked higher among mothers who were participating sports activities when compared to mothers who were not engaged in sports activities. Finally, the duration of participating in sports activities effected the life satisfaction but not effect frequency and intensity.

      • KCI등재

        장애학생 부모가 인식하는 자녀의 체육교육 목표 분석연구

        김광호 한국특수체육학회 2004 한국특수체육학회지 Vol.12 No.1

        The purpose of this study was to analyze physical education purposes perceptions for the parents of student with disabilities. It verified the differences in perception according to three independent variables which were type of disability, level of grade and experience of integrated education. The subjects of this study were 355 the parents of student with disabilities who lived Seoul and Kyunggee province in Korea. A questionnaire designed to measure physical education purpose for the parents of student with disabilities. The reliability of the questionnaire was confirmed by Cronbach's a value and it was 9445. Statistical methods employed in this study were t-test and one-way ANOVA. The results of this study were as follows : first, the parents of student with mental retardation and emotional disorder group showed a higher perception level in all three key concepts and seven major concepts than the parents of student with orthopedic and multiple disabilities group. Second, the parents of student with disabilities who studied middle and high school level showed a higher perception level in the areas of 'environmental coping' than the parents of student with disabilities who studied element school level. Third, the parents of student with disabilities who had experience of integrated education showed a higher perception level in the areas of 'individual development' and 'environmental coping' than the parents of student with disabilities who didn't have experience of integrated education.

      • KCI등재

        아케이드형 재래시장의 형태와 설계요소 조사 연구

        김광호,김태연,노지웅,김병선 대한건축학회 2007 대한건축학회논문집 Vol.23 No.2

        The purpose of this study was to classify the design types of arcade including the width of road, the buildings around the market, the height of opening for ventilation, the height of arcade roof and etc, analyzing ten traditional markets in Seoul for thermal, ventilation, and fire performances by simulations and experiments. The results of this study were as follows; the arcade design types were roughly classified into 2 groups by the shape of arcade roof, monitor and vault, including that the width of road was divided into 4 groups(6m, 8m, 12m, 12m-) by traffic lanes, and there were so many buildings have two floors, and so on.

      • KCI등재후보

        특수체육학과 대학생들의 체육목표인지에 관한 연구

        김광호,권홍수 한국특수체육학회 1999 한국특수체육학회지 Vol.7 No.1

        The purpose of this study to examine the perceiving of purpose concepts in physical education of college students in the course of special physical education(SPE) on the basis of 22 purpose concepts in Purpose-Process Curriculum Framwork(PPCF) developed by Jewett & Mullan(1977). The purpose dimension consists of 3 key concepts: individual develoment, environmental copying and social interaction which are subdivided into 7 major concepts : physiological efficiency, psychic equilibrium, spatial orientation, object manipulation, communication, group interaction and culture involvement. For a sample survey, this research chose 111 students who had pertinently made out the test sheets to the purpose, out of the 120 Y university students in the course of special physical education and 120 students in the course of physical education of S Univ., D Univ. and D Women's Univ. then analyzed the difference of the perceiving of purpose concepts in physical education caused by major, the gender and he or she had taken the lecture that are related to special physical education. The data were analyzed by t-test, two way-ANOVA test of the SPSSWIN 7.6. On the basis of the results in this study, conclusions are as follows: First, SPE students were differently cognitive of purpose concepts in physical education than the non SPE students. Especially, the SPE students are highly cognitive physiological efficiency, psychic equilibrium and group interaction while non SPE students are highly cognitive of group interaction, spatial orientation and object manipulation. Second, Male students were highly cognitive of purpose concepts in physical education than female students, in both major. Male students are more highly cognitive not only need of physical activities but ratio of participation in physical activities than female students. Third, The group who took a lecture of SPE was differently cognitive of purpose concepts in physical education than the group who not took lecture of SPE. It affects perceiving of purpose concepts in physical education to take lectures which are related to special physical education

      • 지체부자유학생의 운동참가가 신체적 자기개념에 미치는 영향

        김광호,김용국 한국특수체육학회 1997 한국특수체육학회지 Vol.5 No.1

        The purpose of this study was to investigate the effect of physical self-conception in the students' with OD(orthopedical impairments) participating exercise. Specifically, this study verified that exercise participation effected the subdimentions of physical self-conception, health, body fat, sport competence, global physical, appearance, esteem, coordination, physical activity, strength, flexibility, endurance. The subjects were 112(male=85, female=27). J special school students in Seoul. They were assigned to 3 groups; 37 involved in control group, 38 involve competitive exercise participation group, 37 involve no competitive exercise participation group through a lot. The students with OD in each group was examined physical-conception through PSDQ(physical self-description questionnaire) invented by Marsh for 12 weeks pre-exercise and post-exercise. The kind of exercise was table tennis for 12 weeks, one hour and twice every week. Competitive exercise participation group played game and no competitive exercise participation group practiced the skill of table tennis and rally. The collected data were analyzed by subprogram of SPSS/PC+ and the conclusions are as follows; 1. The exercise participation develops health, body fat, sport competence in the students' wish OD 6 subdimension of physical self-conceptions for 12 weeks. 2. the exercise participation develops coordination, physical activity, flexibility in the students' with OD 5 subdimensions of physical fitness for 12 weeks.

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