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건축공사시방서에서의 KS규격의 국제인증방안에 관한 연구
김경식,이재섭,김용수,이규진,조용훈,최완철,전재열,이현수,구재동,이기환 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1
The purpose of this research is make out construction specifications for International Construction. Using off-shore products incur cost increase and longer delivery term of construction. and inconvenient on International Construction. Expand the range of additional local products conforming to performance. Life Cycle Cost. maintainability. operability. user's acceptability, etc.. And this study is suggest the standard formats and the techniques for construction specification.
金春姬,高京淑,安喆偶 한국환경과학회 2000 한국환경과학회지 Vol.9 No.2
The purpose of this study was to determine whether Vermi Cast could be used effectively to remove SO_2 from flue gas, and then to investigate optimum adsorption conditions. The Vermi Cast used as adsorbent was mechanically screened with 8∼20 mesh sieve. The adsorption data for S0_2 were regressed using the Freundlich isotherm. The fit was generally satisfactory (R^2=0.945∼0.982). With the temperature changes from 20℃ to 40℃, the constant k in Freundlich isotherm q_e = kC_e^(1/n), decreased from 1.409 at 20℃ to 0.297 at 40℃, and the exponent 1/n were decreased from 0.343 to 0.134. With the bed depth changes from 10㎝ to 30㎝, the adsorption capacity expressed as m㏖ of SO_2 adsorbed per g of Vermi Cast increased from 0.247 to 0.381. Moisture content is an important parameter in the SO_2 adsorption efficiency. When the moisture content ranging 23∼53% temperature 28℃ the amount of SO_2 adsorbed were observed over 0.3m㏖ SO_2/g Vermi Cast. The best adsorption capacity was 0.487m㏖ SO_2/g Vermi Cast, and it was obtained with moisture content 37%, temperature 20℃. From the above results, it might be concluded that Vermi Cast is effectively available as a good adsorbent to remove SO_2 from flue gas.
반건식-백필터에 의한 소각배가스 중의 HCI, SOx 제거 (Ⅰ)
배병훈,신남철,고경숙,김춘희,문종익,임경택 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.1
This study has been carried out to investigate the removal efficiencies of HCl/SOx in a Spray-Dryer/Fabric-Filter system. In HCl/SOx removal, we could identify the key factors such as spray dryer outlet temperature, molar equivalence ratio(MER) and fabric filter velocity, but we couldn't find out the correlation of HCl and SOx. The removals of HCl/SOx were inversely proportional to spray dryer outlet temperature(l30~170℃) and filter velocity(l.0~1.5 m/min), at the MER, HCl removal efficiency was strongly proportional to MER, but SOx, removal efficiency was not particularly increased by MER over 1.5. The removal efficiencies of HCl/SOx were improved over 10% at the fabric filter. In this Spray-Dryer/Fabric-Filter system, HCl/SOx removal efficiencies were about 99%, 96% respectively.
천병철(Byung-chul Chun),김재홍(Jae-hong Kim),이윤정(Yoon-jung Lee),강춘(Kang Chun),김현미(Hyun-mee Kim),권용국(Young-kuk Kwon),최준구(Jun-gu Choi),이은경(Eun-kyoung Lee),박최규(Choi-kyu Park),위성환(Sung-hwan Wee),최순자(Soon-ja Cho 한국역학회 2005 Epidemiology and Health Vol.27 No.1
Natural infections with influenza A viruses have been reported in a variety of animal species including humans, pigs, horses, sea mammals, and birds. Although viruses of relatively few haemagglutinin(HA) and neuraminidase(NA) subtype combinations have been isolated from mammalian species, all subtypes, in most combinations, have been isolated from birds. During the past few years, several subtypes of avian influenza A have been shown to cross the species barrier and infect humans. During an outbreak of a highly pathogenic influenza A(H5N1) virus among poultry in Hong Kong in 1997, 6 of 18 people with confirmed infection died. And a total of 89 human infections with influenza A(H7N7), including 1 resulting in the death of a Dutch veterinarian, occurred during the extensive outbreak in 2003. During late 2003 and early 2004, there were reports of large outbreaks of H5Nl among poultry throughout Asia (including Korea, Japan, Indonesia, Vietnam, Thailand, Laos, Cambodia, and China). In Korea, we had also highly pathogenic avian influenza(HPAI) outbreak in 2003-2004 with a first suspected case reported on 10 December 2003. The case was reported at a parent stock farm for broilers, which was locatcd in Chungbuk province, and the farm was immediately placed under movement restrictions. Laboratory tests confirmed the outbreak of HPAI on 12 December 2003. Up to 20 March 2004, a total of 19 farms were confirmed as having been infected with HPAI virus. No further outbreaks occurred after that date. Fortunately there were no human cases founded in this epidemic in Korea. In January 2004, there was confirmation that influcnza A(H5N1) virus had bcen isolated from patients who had died of a respiratory illness in Vietnam. Total 107 human confirmed cases were reported until June 2005 to WHO, threatening new pandemic outbreak. We reviewed our prevention and control strategies of avian influenza and preparedness to the pandemic outbreak.