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미래 주거의 최적 냉난방 시스템 적용을 위한 기초 연구
박정하(Jung Ha Park),최병도(Byung Do Choi),박성조(Sung Jo Park),박진철(Jin Chul Park) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.11
Plans are needed to reduce energy consumption in each countries and Korea ,as the world is highly interested in green growth and environment conservation. This is an elementary study for the application of optimal heating and cooling system for future housing, material research was conducted on conventional and latest heating and cooling system, and optimal alternatives proposed. The result of this study is summarized as follows. Radiant floor heating was applied in current, but it will should be advantageous combination of convection cooling systems and radiant heating systems with smaller capacity, due to high insulation.
초고층건물에서의 소형풍력발전시스템 적용방안에 관한 연구
박영현(Young Hyun Park),장호진(Ho Jin Jang),박정하(Jung Ha Park),박성조(Sung Jo Park),박진철(Jin Chul Park) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.11
Since due to the nature of high-rise buildings, the increase of wind speed according to the height of a building makes it possible to use high wind power resources, many countries led by some advanced nations are recently making steady and persistently effort in introducing small wind turbine systems as a step to lower electric power load in high-rise buildings. The aim of this research is to propose an optimum application process of a small wind turbine system in high-rise buildings. To achieve this goal, the case study on the applications of high-rise and tall buildings was conducted and selected the best application among them. With considerations based on the results, an application process which is verified by actually selecting a high-rise building was proposed.
권민,최병선,박언섭,정남현,박성조,임영,박정덕,Kwon, Min,Choi, Byung-Sun,Park, Eon-Sub,Chung, Nam-Hyun,Park, Sung-Jo,Lim, Young,Park, Jung-Duck 대한예방의학회 2004 예방의학회지 Vol.37 No.4
Objectives : Iron (Fe) is an essential element in biological processes; however excessive Fe is harmful to human health. Some air pollutants contain a high level of Fe, and the human lung could therefore be over-exposed to Fe through inhaled air pollutants. This study was performed to investigate the role of metal transporters (divalent metal transporter 1, DMT1, and metal transporter protein 1, MTP1) in the lung under the environments of Fe deficiency in the body and Fe over-exposure in the lung. Methods : Rats were fed Fe deficient (FeD, 2-6 mg Fe/kg) or Fe supplemented (FeS, 120 mg Fe/kg) diet for 4 weeks, followed by a single intratracheal instillation of ferrous sulfate at low (10 mg/kg) or high (20 mg/kg) dose. Fe concentration was analyzed in the serum, lung and liver, and histopathological findings were observed in the lung at 24 hours after Fe administration. The level of DMT1 and MTP1 expression in the lung was analyzed by RT-PCR. Also, the effect of Fe deficiency in the body was evaluated on the level of Fe concentration and metal transporters compared to FeS-diet fed rats at the end of 4-week FeD or FeS diet. Results : The 4-week FeD diet in rats induced an Fe deficiency anemia with decreased serum total Fe, increased unsaturated Fe binding capacity and hypochromic microcytic red blood cells. The concentration of Fe in the lung and liver was lower in the FeD-diet fed rats than in the FeS-diet fed rats. The level of metal transporters mRNA expression was higher in the FeD-diet fed rats than in the FeS-diet. The concentration of Fe in the lung was increased in a dose-dependent pattern after intratracheal instillation of Fe into the rats, while the level of Fe in the serum and liver was not increased in the low-dose Fe administered rats. Therefore, DMT1 and MTP1 mRNA was highly expressed in both FeD-diet and FeS-diet fed rats, after intratracheal instillation of Fe. Conclusions : DMT1 and MTP1 mRNA were more highly expressed in FeD-diet fed rats than in FeS-diet fed rats. The over-exposure of Fe intratracheally induced high expression of metal transporters and increased Fe deposition in the lung in both FeD-diet and FeS-diet fed rats, but did not increase the Fe level of the serum and liver in low-dose Fe administered rats. These results suggest that the role of metal transporters in the lung might be different in a part from the duodenum under the environment of over-exposure to Fe.
홍민호(Min-Ho, Hong),이수연(Soo-Youn, Lee),연창근(Chang-Kun, Yeon),박성조(Sung-Jo, Park) 대한설비공학회 2015 대한설비공학회 학술발표대회논문집 Vol.2015 No.11
This case study aims to provide mechanical systems by introducing the recently designed R&D center projects.