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권오석,Gwon, O-Seok 한국건설안전협회 1993 建設 安全技術 Vol.3 No.4
본고는 지난 11월 3일 건설회관에서, 종합건설사 경영진을 비롯한 전문건설업체 대표들이 참석한 가운데 12개 건설관련단체가 주관하여 열렸던 <건설인 의식개혁 및 안전사고 예방을 위한 강연회>의 제2주제로서 본협회 권오석 회장이 강연한 내용으로 이에 수록한다.
權五錫 충남대학교 공업교육연구소 1982 論文集 Vol.5 No.1
In contrast with the conventional method of generating characters with a fixed dot matrix pattern, the Korean Character Graphics Software uses a representation of piecewise analytic functions such that the form, the size, the character line width, the orientation, the slant, and the annotation of a character or character string can be varied at will.
Polymer nanomaterials for reducing fine dusts
권오석 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0
Particulate matter (PM) pollution is serious human health issue. Various filter technologies have been developed to improve the air filtration efficiency. Recently, nanofibrous membrane filters have received much attention due to its outstanding transparency and high efficiency for PM≤2.5 μm (PM2.5) capture/removal compared to conventional micro-structured filters. Although these filters provide high-efficiency PM2.5 capture, obtaining strong PM adhesion via surface engineering remains a challenge. In this study, we demonstrate a high efficiency PM2.5 capture air-filter by electrospun polyacrylonitrile nanofibers (EPNFs). The EPNFs were utilized as air filter in hand-made PM removal system. The test result showed high air flow and effective air filtration (PM2.5 removal efficiency: 94.02%, pressure drop: 18 Pa, Time to reach the PM level recommended by the World Health Organization (TWHO PM2.5): 15 min, quality factor: 0.1564 Pa-1) compared to commercial filters.