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AHP기법을 활용한 공공청사 신축 부지의 합리적인 선정에 관한 연구
임병훈 한국건축시공학회 2008 한국건축시공학회지 Vol.8 No.6
The purpose of this study is to present the rational decision process for new ward office building site. AHP Technique used in this study considers both quantitative and qualitative factors on the basis of decision maker's intuitive, reasonable or unreasonable judgement by giving weight through mutual comparision of publicity factors. The evaluaion factors were refer to another five ward office there were executed these kinds of new site selection before. These standards are composed of 6 middle groups and classified into 9 detailed standards. Alternative building sites are five places in this district. The final evauation standards are Accessibility, Urban Expansion Possibility, Distrct balance, Enviornment, Financing, Development easiness. And It became clear that the priority of evaluation is Financing > Urban expansion > Accessibility > Development easiness > District balance > Enviornment. In conclusion, it was determined that alternative " E " is the most adequate place for new ward office building.
임병훈,장지선,김정원,장세진,김성훈,방제소,양수현,변종훈 대한소화기내시경학회 2010 Clinical Endoscopy Vol.41 No.2
Polyarteritis nodosa is a systemic necrotizing vasculitis that affects mainly small and medium-sized arteries that involve multiple organs. In addition to the systemic involvement of classical vasculitis, localized vasculitis involves blood vessels within a confined vascular distribution or single organ without clinical evidence of generalized inflammation. Localized vasculitis of the gastrointestinal tract is a rare entity. In particular, a limited involvement of the small bowel is an unusual manifestation of polyarteritis nodosa. In this report, we describe a case of biopsy-proven polyarteritis nodosa presenting as small bowel bleeding without other systemic manifestations. 일반적으로 혈관염은 다발성 장기를 침범하나, 단일 장기에 발생한 국소성 혈관염이 종종 보고되었다. 그러나 소화관에 국한되어 발생한 혈관염은 매우 드물며, 소장에 발생한 국소성 혈관염은 국내에서 보고된 바 없다. 저자들은 최근 반복되는 심한 장출혈이 있어 소장 절제 수술을 시행하고 수술 후 조직검사에서 결절성 다발성 동맥염을 진단한 증례를 경험하였다. 환자는 혈관염을 의심할 만한 전신 증상 및 다른 장기를 침범하는 검사 소견이 없어 소장에 국한된 괴사성 혈관염으로 진단하였다.
Effect of the Monomer Ratio on the Properties of Melt-Polymerized Polycarbonate
임병훈,이진우,박오옥 한국고분자학회 2019 Macromolecular Research Vol.27 No.12
In this study, the effects of bisphenol A (BPA) and diphenyl carbonate (DPC) molar ratio, on the properties of melt-polymerized polycarbonate (PC) were investigated. The molecular size distribution theory proposed by Flory was applied, to melt polymerization of PC to predict physical properties, affected by the molar ratio of BPA and DPC. A terminal OH group affected the viscosity of PC at high temperatures, leading to instability during processing. With increase in the DPC/BPA molar ratio, terminal OH content decreased, albeit different from the theoretical predicted value, because of the volatilization of DPC. Additionally, BPA residual amount was affected by BPA and DPC molar ratio. BPA is regulated in countries because of its similarity to estrogen, and BPA residues can be predicted and managed by using the Flory equation.