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Comparison of Muscle Mass Indexes According to Protein Intake in Obese Patients
허민경,이연주,박용순 대한비만학회 2016 The Korean journal of obesity Vol.25 No.4
Background: Protein is the most important nutrient for the muscle synthesis and maintenance of muscle mass. However, there have been no studies comparing muscle mass indexes according to protein intake in obese patients. Thus, the present study investigated the hypothesis that high protein intake positively affected muscle mass indexes in obese patients. Methods: Male (n=50) and female (n=30) obese patients were recruited. Each sex was divided into 2 groups according to their protein intake. Dietary intake, fat-free mass, appendicular skeletal muscle mass, appendicular skeletal muscle mass/height2, skeletal muscle index, total bone area, bone mineral count, bone mineral density, total cholesterol, low density lipoprotein cholesterol, high density lipoprotein cholesterol, interleukin-6, tumor necrosis factor α, smoking, alcohol, and exercise were assessed. Results: Fat-free mass, appendicular skeletal muscle mass, and appendicular skeletal muscle mass/height2 were significantly higher in obese men in the higher protein intake group, while serum triglyceride was significantly lower in the same group. However, bone indexes and inflammatory cytokines according to protein intake were not significantly different in obese men. Fat-free mass, bone indexes, muscle indexes, blood lipid profiles, and inflammatory cytokines were not significantly different according to protein intake in obese women. Conclusion: In this population, increasing protein intake may positively affect fat-free mass, appendicular skeletal muscle mass, appendicular skeletal muscle mass/height2, and serum triglyceride in obese men. Therefore, additional studies may be necessary to identify the appropriate level of protein intake required to prevent a decrease in muscle mass, and increase muscle mass in obese patients.
A Study on a Hybrid Energy System to Reduce CO<sub>2</sub> Emission In Mavuva Island, Fiji
정태용,현정희,이슬,허민경,Jung, Tae Yong,Hyun, Jung Hee,Lee, Seul,Huh, Minkyung Korean Society of Environmental Impact Assessment 2017 환경영향평가 Vol.26 No.4
오늘날 대부분의 국가는 기후변화 문제에 직면해 있으며, 특히 군소도서개발국들(SIDS: Small Island Developing States)은 기후변화의 영향에 가장 취약하다. 이들은 전력생산 및 교통부문에 있어 수입된 석유와 화석 연료에 크게 의존하고 있으므로 유가 변동에 따라 경제적으로 매우 영향을 받는다. 군소도서개발국들(SIDS)이 디젤 연료에 의존하는 이유 중 하나는 외딴 섬에 인구가 분산되어 있어서 계통연결을 통한 전력공급이 어렵기 때문이다. 군소도서개발국들 중 피지(Fiji)는 기후변화의 심각성을 인식하고 기후 변화의 영향을 줄이기 위한 '국가계획'을 통해 신재생에너지 사용을 적극 장려하고 있다. 본 연구에서는 피지의 마부바 섬(Mavuva Island)을 대상으로 HOMER 프로그램을 사용하여 태양광, 에너지저장장치 및 디젤 발전의 조합을 통하여 최적의 에너지 시스템을 시뮬레이션하고 분석한다. 태양광과 디젤 발전을 합친 하이브리드 에너지시스템이 이 지역의 실행가능성 및 가격 측면에서 가장 효과적이고, 온실가스 감축효과도 큰 것으로 파악되었다. Although the effects of climate change are universal, Small Island Developing States (SIDS) are considered to be most vulnerable. SIDS heavily rely on imported oil and fossil fuels for electricity generation and transportation, which makes them economically vulnerable and exposed to fluctuating oil price. Among the reasons SIDS highly depend on diesel fuel is due to the dispersed population living in remote islands which means, providing electricity through on on-grid system is difficult. Fiji as one of the SIDS, has actively promoted renewable sourced energy through a national plan to mitigate the impacts of climate change. In order to determine how feasible implementing a renewable energy (RE) system will be in Fiji, this study chose a remote island called Mavuva Island to test application of a hybrid RE system using HOMER. A combination of energy storage system (ESS), solar photovoltaic (PV) and diesel generator turns out to be the most cost effective and optimal configuration, resulting in effective greenhouse gas reduction for the given region.
A Study on a Hybrid Energy System to Reduce CO2 Emission In Mavuva Island, Fiji
정태용,현정희,이슬,허민경 한국환경영향평가학회 2017 환경영향평가 Vol.26 No.4
Although the effects of climate change are universal, Small Island Developing States (SIDS) are considered to be most vulnerable. SIDS heavily rely on imported oil and fossil fuels for electricity generation and transportation, which makes them economically vulnerable and exposed to fluctuating oil price. Among the reasons SIDS highly depend on diesel fuel is due to the dispersed population living in remote islands which means, providing electricity through on on-grid system is difficult. Fiji as one of the SIDS, has actively promoted renewable sourced energy through a national plan to mitigate the impacts of climate change. In order to determine how feasible implementing a renewable energy (RE) system will be in Fiji, this study chose a remote island called Mavuva Island to test application of a hybrid RE system using HOMER. A combination of energy storage system (ESS), solar photovoltaic (PV) and diesel generator turns out to be the most cost effective and optimal configuration, resulting in effective greenhouse gas reduction for the given region.