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김대원(Kim, Daewon),이건영(Lee, Keonyoung),조은철(Cho, Eunchel),박상욱(Park, Sangwook),문인식(Moon, Insik),이규열(Lee, Kyuyeol),유재희(Yu, Jaehee) 한국신재생에너지학회 2005 한국신재생에너지학회 학술대회논문집 Vol.2005 No.06
A rear contact solar cell has a potential merit of efficiency improvement by a low shading loss in front surface. a simplified module assembly. and a higher packing density. Among the rear contact solar cells. MWT. metallizationl wrap through MWT solar cells that have the bus bars on the back side and the front side metallization is connected to the back through metal filled laser fired holes in the silicon wafer. This approach has the advantages of a much more uniform appearance. The first fabrication of MWT using a multicrystalline silicon modules in our group showed 12.28% on 125mm{times}125mm active area.
김신 ( Shin Kim ),김주언 ( Jueon Kim ),이권철 ( Kwonchul Lee ),이규열 ( Kyuyeol Lee ),전혜린 ( Hyelyn Jeon ),유재정 ( Jaejung Yu ),이인정 ( Injung Lee ),안정민 ( Jungmin Ahn ) 한국환경과학회 2015 한국환경과학회지 Vol.24 No.8
In order to certificate the distribution and pollution of heavy metal of surface sediments in Nakdong River were collected and analyzed for grain size, water content, ignition loss and heavy metal content. Surface sediments mainly composed of sand(avg. 94.6%) and water content and ignition loss were 20.46%, 1.53% on average. Grain size were relatively fine and organic matter content were relatively high in the Hoichun and Sunakdonggang. Most of heavy metal content(Zn > Cr > Pb > Ni > Cu > Hg) in the Deokcheongang and Sunakdonggang were higher than the other streams. The Igeo were non polluted(less than 0) in all streams and the EF were relatively high in the small stream and PLI were non polluted(less than 1). In addition, organic matter, heavy metal content and pollution were highly correlation with grain size. Surface sediments in study area, heavy metal pollution of the Sunakdonggang were relatively high compared to the other stream but these results were not serious pollution that exceed the sediment pollution evaluation standard of river and lake in Korea and pollution levels adversely affected the majority of benthos were not.