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RISS 인기검색어
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- 저자 : 崔?峻(Choi, I. J.) (검색결과 6 건)
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환경비용 및 운용방식에 따른 MicroGrid 경제성 분석
朴重城(Jungsung Park),申惠慶(Hyekyeong Shin),李德洙(Ducksu Lee),崔仁善(Insun Choi),崔榮峻(Youngjun Choi) 대한전기학회 2008 전기학회논문지 Vol.57 No.10
Environmental issue is one of the key factors to industry area using fossil fuels, because it accelerates the global warming. So it is supposed to reduce greenhouse gases around the developed nations of the world at times go. This issue is especially for the power industry. Under this background, MicroGrid system that consists of Distributed Energy Resources (DER) system, such as natural power system (wind, solar) and fuel-cell, co-generation, also known as CHP (Combined heat and power), has been developed greatly during the last 10 years. This paper adopts optimal model using GAMS to develop methods for conducting an integrated assessment of MicroGrid system.
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洪淳錫,崔寧峻 弘益大學校 産業技術硏究所 2005 産業技術 Vol.15 No.-
While everyone who uses electric power desires perfect frequency, voltage, stability, and reliability at all times, this cannot be realized in practice. The supplying utility cannot be expected to provide a perfect power supply because many of the causes of power supply disturbances are beyond the control of the utility. The outage happens but due to many reason. The electricity equipment requires consequently the emergency power supply. We classify the subordinate for quick supply of the emergency power supply and must grope the supply plan. We will find out in this paper through the case study about the emergency power efficient operation plan.
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복부 근력강화운동 프로그램이 복부비만 감소에 미치는 영향
黃龍,崔亨峻 동남보건대학 2001 論文集-東南保健大學 Vol.19 No.2
The purpose of this study is to present scientific data and efficient methods of exercise to develop a basic diet program. The exercise program for abdominal muscular strength suggested in this study is composed of muscular strength exercise and aerobic exercise designed for the reinforcement of muscular strength and the decrease of obesity. The subjects of this study are 24 obese university students over a BMI of 25, which are divided into two groups. Each group has 12 students including male 6, female 6. One group(case) had carried out exercise program for abdominal muscular strength for 12 weeks, the other group(control) had taken aerobic exercise for 12 weeks respectively. InBody3.0 (Biospace, Seoul, Korea) was used as a apparatus of experiment. The measured body compositions are weight, waist hip ratio, body mass index. Blood lipids was measured on an empty stomach for more than 12 hours around 9 a.m. The measured items are total cholesterol (TC), triglyceride(TG). Somatotype was measured by hazeltine for the human body. scales, calipers(SKYNDEX). The whole somatotype was measured by Life Size Program(USA) using the value of skinfolds at 9 Parts, girths at 5 parts, and breadths at 2 Parts. The measurements had been taken before exercise of each group, after 4 weeks, after 8 weeks. after 12 weeks. Body composition and blood lipids of the measured data were analyzed with MANOVA using SAS, somatotype with non-parametics test. The results are as follows ; 1) Body composition had more effective changes in control group than in case group(P<.05). 2) Blood lipids had more effective changes in control group than in case group(P<.05). 3) Somatotype had no significant differences between two groups statistically, but control group had more effective changes than case group. Considering all the results mentioned above, the exercise program for abdominal muscular strength showed the positive effects on obesity with the change of body composition, blood lipids, somatotype. It is desirable to perform muscular strength exercise and aerobic exercise effective to the decrease of muscle mass at a sam time rather than the only aerobic exercise. The exercise program for abdominal muscular strength to cure Postural muscular unbalance caused by obesity can be utilized for the prevention and treatment of obesity, being effective on the health management of adults as well as students.
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고교 여자유도선수와 일반여학생간의 기초체력 및 신체조성비에 관한 연구
黃龍,崔亨峻 동남보건대학 2002 論文集-東南保健大學 Vol.20 No.2
The purpose of this study is to examine if judo prevents obesity caused by supernutrition and lack of exercise helps balanced physical growth. For this study I analysed physical strength and the components of body between judo experts and ordinary students among girls' high school students. The subjects of this study were 15 judo experts(Group A) with careers over 5 years and 15 ordinary high school girls (Group B) with no exercise at W information industry high school in Seoul. PMS FE 101(Height Meter), CAS(Weight Meter), IN-BODY 3.0 (Bio-Impedance), Dakei (fitness measurement) were used as the apparatus of the experiment. SPSS WIN Ver10.0 (independent t-test) was used for statistics. A significant level was p<.05. The results are as follows: 1) As for the back strength, group A is stronger than group B by 23.66%. There is a significant difference between the two groups(p<.05). 2) The grip strength of group A is higher than that of group B by 26.53%. There is a significant difference between the two groups(p<.05). 3) The ability of a sargent jump of group A is higher than that of group B by 26.53%. There is a significant difference between the two groups(p<.05). 4) As for trunk flexion forward, group A is higher than group B by 30.85%. There is a significant difference between the two groups(p<.05). 5) As for the ability of side step, group A is higher than group B by 17.39%. There is a significant difference between the two groups(p<.05). 6) As for the ability of closed eyes foot balance, group A is higher than group B by 17.39%. There is no significant difference between the two groups. 7) As for the body composition, the weight of group A is lower than that of group B by 2.10%. There is no significant difference between the two groups. As for the body fat mass, group A is lower than group B by 23.61%.(p<.05) As for the proportion of the body fat group A is lower than group B by 32.41%.(p<.05) As for the lean body mass group A is higher than group B by 17.08%. (p<.05) The results of this analysis show that regular judo exercise helps the prevention of diseases of adult people caused by obesity as well as the development of physical fitness.
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