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유일수,유은주,이종섭,박현,소진탁,Yoo, I.S,Yoo, E.J,Lee, J.S.,Park, H.,Soh, C.T. 한국패류학회 1989 The Korean Journal of Malacology Vol.5 No.1
Heaty metals in mollusks and in sedimints collected from five stations along Mangyong river area in Jeonra Bug Do were examined during 1988 through 1989. Concentration of heavy metals in Cipangopaludina chinensis malleata and Anodonta woodiana were highly correlated with that in sediments, And concentration of heavy metals in both of millusks and sediments from industrialized area was higher than the other stations. Above results suggested that Mangyong river was polluted with heavy metals and heavy metals were accumulated in molluscan soft bodies.
고압용 다이아프램 압축기 및 체크 밸브의 2-way FSI 수치해석
최범석(B.S. Choi),윤현기(H.G. Yoon),유일수(I.S. Yoo),박무룡(M.R. Park) 한국전산유체공학회 2010 한국전산유체공학회 학술대회논문집 Vol.2010 No.5
A metal diaphragm compressor has been widely used for supplying a high pressure gas. This compressor mainly consists of gas, oil space and metal diaphragm. Gas sucked in the gas space is compressed by an oscillating metal diaphragm existed between the gas and oil space. A non-return discharge and suction check-valve are components of the compressor that draw off the compressed oil and gas. Those components are self-actuated by differential pressures. Therefore, the rapid response and stable operating conditions are required. In the present study, to find out the dynamic behavior of the suction, discharge valve and diaphragm compressor, the unsteady flow field has been investigated numerically by using the unsteady two-way FSI (Fluid Structure Interaction) simulation method, k-ω turbulent model and mesh deformation.
만경강 유역 수질 및 저질토의 중금속 함량에 관한 조사연구
소진탁,이종섭,유일수,유은주,김환홍 ( C T Soh,J S Lee,I S Yoo,E J Yoo,H H Kim ) 한국하천호수학회 1991 생태와 환경 Vol.24 No.2
Thecontents of heavy metals in water and sediment along Mangyung River was carried out from October 1989 to September 1990. The pollution levels of metals such as Cd, Pb, Cu, Mn and Zn were remarkably indicated high values at site (B). The results obtained are as follows; 1) In water, concentration of Cd, Pb, Cu, Mn and Zn are respectively N.D-15.39 ppb, N.D-21.07 ppb, N.D-28.48 ppb, N.D-152.40 ppb and N.D -86.37 ppb. 2) In sediment, concentration of Cd, Pb, Cu, Mn and Zn are respectively 0.11∼2.27 ppm, 5.48∼64.52 ppm, 4.48∼125.54 ppm, 176.58∼452.83 ppm and 24.18∼422.73 ppm.
만경강유역 토양 및 농작물의 중금속 함량에 관한 調査硏究
유일수,이종섭,소진탁 대한보건협회 1992 대한보건연구 Vol.18 No.1
Heavy metals in soils and agricultural products along Mangyeong-gang were examined with atomic absorption spetrophotometer during from October 1989 through Semptember 1991. Sampling stations were SamKi-Ri, Korangdong, Haejon-Ri, O-Jon-Ri, Daejang-Ri, Toksil-Ri. Yookang-Ri, Kongduk-Ri and O-bong-Ri from up-stream to the estuary. The results are summarized as follows: 1. Soils-Heavy metals in Samki-Ri were(mg/Kg): Pb 2.961, Cd 0.124, Cu 23.62 and Zn 27.321, where as Pb 49.114, Cd 0.517, Zn 135.957 Cu 46.175 in Korang-dong which adjacents to Jeonju industrial plant. The former showed the lowest, and the highest in the latter among the sampling stations. 2. Rice-Heavy metal contents in rice correlated with the soil contamination; Pb 0.123 and Cd 0.031 in Samki-Ri, while Pb 0.941 and Cd 0.238 in Korang-Dong. 3. Vegetables-Heavy metals in vegetables also showed similar correlation: Pb 0.149 and Cd 0.041 in raddich from Samki Ri, but Pb 1.943 and Cd 0.251 from Korang-dong. The overall result indicate that heavy metal contents in agricultural products are correlated with the contaminction of soil in correspanding sampling station
군산지역 택시 운전기사의 혈액, 뇨 및 모발의 중금속 함량에 관한 조사 : Driver of Kun San Area
황인담,이종섭,유일수,김흥두 대한보건협회 1992 대한보건연구 Vol.18 No.1
Heavy metals in bood, urine and hair of 90 taxi-drivers in kunsan city and 60 rural inhabitants (seong-san Meyon, Okugun) were examined during from Februry to August, 1991. The average amounts of heavy metals in each group are summarized as faelows; 1. Blood - Lead contents were 23.70mg/dl in driver and 18.12mg/dl in rural inhabitants; and cadmium were 0.16mg/dl and 0.12mg/di respectively. 2. Urine - Lead contents were 33.86mg/i and 28.31mg/i in drivers group and rural inhabitants respedctively: candmium were 0.15mg/dl and 0.13mg/dl in rural inhabitants, and driver group respectively. 3. Hair - Lead cantents were 10.26mg/kg in driver and 6.94mg/kg in urral inhabitants: Cadmium were 0.52mg/kg and 0.40mg/kg in drivers and rural inhabitants respectively.