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열화상 측정법과 열류량 측정법을 이용한 기존 외벽체의 열관류율 및 민감도 분석
최두성(Doo-Sung Choi),고명진(Myeong-Jin Ko) 한국생활환경학회 2017 한국생활환경학회지 Vol.24 No.2
This paper reviewed the validity of IRT from the comparison·analysis of U-value and HFM results of apartments in Korea, which have been calculated using IRT, and presents the evaluation solution for thermal insulation performance that can consider the main environmental factors. Side walls of 3 apartments that were constructed in 10-year intervals from one another, were selected as subjects of measurement. The subjects’ environmental impact of surroundings and measurement device’s errors were considered for analysis. In result, it is evaluated that there is validity of ±20% error between IRT and HFM measurement methods when reflected temperature is at ±1.0<SUP>o</SUP>C range of air temperature and emissivity is at ±0.2 range.
태권도 일반품새와 음악품새 수행이 혈중 스트레스 호르몬 농도에 미치는 영향
남상남(Sang-Nam Nam),김성문(Seong-Moon Kim),정진협(Jin-Hyup Jeong) 한국생활환경학회 2008 한국생활환경학회지 Vol.15 No.1
This study sought to determine the positive effect of music poomsae by investigating how the general and music poomsae training would affect the level of stress hormones in the blood of high school male students. A total of 16 high school male students aged 16-18 years and known to have no specific disease upon interviewing them about their health were selected. They were randomly divided into two groups: general (8) and music poomsae (8). The difference in the level of stress hormones in the blood before and after the experiment was tested after they were made to repeat the Taekwondo's eight signs of divination (chapters 1-8) twice at the same speed. The test indicated that the levels of Epinephrine, Norepinephrine, and Cortisol increasedin the general poomsae group after the experiment. In the music poomsae group, however, the levels of Epinephrine, Norepinephrine, and Cortisol decreased significantly after the experiment. This suggests that the music poomsae training has positive effects on the level of stress hormones in the blood.
남자 고등학생들의 근지구력, 심폐체력과 인슐린 저항성 및 심혈관질환 위험요인의 관계
안기용(Ki-Yong An),김은성(Eun-Sung Kim),제갈윤석(Yoonsuk Jekal),전용관(Junstin Y. Jeon) 한국생활환경학회 2010 한국생활환경학회지 Vol.17 No.4
The purpose of the current study was to investigate the association of muscular endurance (ME) and car-diopulmonary fitness (CF) to insulin resistance and the risk factors of cardiovascular disease (CVD) among Korean male high school students. Among two hundred eighty seven male adolescents anthropometric assessment, physical fitness test and serum analyses were conducted. The level of physical fitness was negatively correlated with fatness, insulin, insulin resistance, cardiovascular risk score (CVDRS). ME was significantly associated with total cholesterol, triglyceride, insulin, insulin resistance and CVDRS, and CF was associated with triglyceride, high density lipoprotein cholesterol, insulin, insulin resistance and CVDRS. In order to compare and investigate the association of CF and ME to CVD risk factors, participants were divided into four groups across the combined level of CF and ME. The finding demonstrated that participants with the high level of either ME or CF have the low level of triglyceride, insulin resistance and CVDRS than the low level of ME and CF. The current study suggests that improvement of ME or CF is important to prevent metabolic disease among Korean male adolescents.