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최승철(Seung-Churl Choi),최선웅(Seon-Ung Choi),김욱(Wook Kim) 한국농업정책학회, 한국축산경영학회 2011 농업경영정책연구 Vol.38 No.1
This paper deals with the structural changes in pork prices of supply chain and the transaction system in pork wholesale market. In pork wholesale market, the average price of auction of Garak wholesale market, Seoul, has been represented as a standard for decentralized market transactions. However, the amount of transaction in the market has been declined with poorer quality of pork, and thus the role of the market seems to be less reliable. This compels to cast aside current grading system of pork and to find more resonable system. We examine whether structural changes for farm, wholesale, and retail prices are taken place, the adjustment process of the prices, and the causation between the prices.
韓秉基,崔善雄,李位魯 弘益大學校 科學技術硏究所 2005 科學技術硏究論文集 Vol.16 No.-
Full-beads of multi-layer steel engine head gaskets that are used to seal the combustion gas between the head and the block are subject to cyclic bending stresses due to the variation of the head/block gap during engine operation. The L-D curve of the full-bead formed on SUS304 thin plate is important for the sealing capacity assessment. Therefore the experimental method for measuring the L-D curve must be established in gasket company. In this study the rig and the data acquisition system for measuring the L-D curve is suggested. And the experimental results are shown. This results are compared with numerical rsults obtained by using ABAQUS package.