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CGS를 잔골재로 활용하는 FA치환 콘크리트의 응결시간 추정시 개량형 듀로미터 사용 가능성 분석
이혁주 ( Lee Hyuk-ju ),신용섭 ( Shin Yong-sub ),서항구 ( Seo Hang-goo ),한인덕 ( Han In-deok ),한민철 ( Han Min-choel ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2019 한국건축시공학회 학술발표대회 논문집 Vol.19 No.2
In this study, the Proctor penetration resistance test value and the hardness value of the improved Durometer were compared and analyzed for the change in the FA replacement rate of the concrete using CGS fine aggregate. The results are summarized as follows. It is. 1) The Proctor penetration resistance test value and the hardness value of the improved Durometer showed a high correlation in the form of a curve. 2) About surface finish Super-resolution with the improved Durometer is considered to be useful when using about 50 HD and about 80 HD in the end to determine the surface finishing work time.
건강 검진자 중 B형 간염 바이러스의 표면항원과 항체의 양성률
김유현 ( Yoo-hyun Kim ),신용섭 ( Yong-sub Shin ) 대한임상검사과학회 2003 대한임상검사과학회지(KJCLS) Vol.35 No.2
Hepatitis B virus(HBV) infection is prevalent in all parts of the world, with the highest incidence in Southeast Asia and Africa. Acute HBV infection is fully resolved in 90% to 95% of infected adults, who remain immune for their lifetimes. It is estimated that more than 350 million people in the world are chronic carriers. HBV carriers are at risk for developing chronic liver disease, including hepatocellular carcinoma. The aim of this study was performed to survey of the current tendency of HBV infection in Korea. A total number of 1,818 serum samples(male 1,292, female 526) collected from the health promotion center in Wonkwang University, School of Medicine and Hospital had been tested to detect for hepatitis B surface antigen(HBsAg) and anti-HBs by enzyme-linked immunosorbent assay(ELISA) method during the period March, 2002 to May, 2003. The positive rate for HBsAg was 4.5%(82/1,818), and that of male was 5.0% higher than female 3.2%. The positive rate of HBsAg by age group was the highest positive rate group in 40-49 years(6.1%), and upper 60 years(2.2%) was lowest of all. The positive rate for anti-HBs was 66.7%(1,212/1,818), and positive rate of female(66.9%) and male(66.6%) showed similar results. The positive rate of anti-HBs by age group was the highest positive rate group in 30-39 years(69.3%), and upper 60 years(59.8%) was lowest rate of all.
콘크리트용 잔골재로서 석탄가스화복합발전 슬래그의 활용성 검토 - 물리적 성질 및 유해물질 함유량 특성을 중심으로 -
현승용 ( Hyun Seong-yong ),한준희 ( Han Jun-hui ),이재진 ( Lee Jae-jin ),신용섭 ( Shin Yong-sub ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.1
This study is a fundamental consideration for using CGS from the IGCC as a fine aggregate for concrete. For the review, the physical properties and hazardous materials content of KS F 2527 were considered. The results showed that KS F 2527 standard was generally satisfied, making it possible to confirm the possibility that it is a fine metal considering its physical properties and hazardous materials content characteristics.