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고흥 외나로도 해역에서 서식하는 어류의 종조성 및 어구별 CPUE
정승택(Seung-Taek JUNG),최영재(Young-Jae CHOI),강태종(Tae-jong KANG),민은비(Eun-bi MIN),황두진(Doo-jin HWANG) 전남대학교 어업기술연구소 2021 어업기술연구소보고지 Vol.14 No.1
The fish species composition and CPUE abundance of fishery resources were surveyed by gill net, trap net and longline Oenarodo Go-heung, Korea. In the coastal area Oenarodo Go-heung, Korea in April, June, August and October 2020. The collected fishes were 267 individuals of the total, identified into 13 orders, 19 families and 23 species. The total catch included 9 species in the gill net, 12 species in the trap net, and 4 species in the long line. The dominant species were Portunus trituberculatus the gill net, Octopus vulgari in the trap net, and Muraenesox cinereus in the long line. Catching by fishing gears were the highest in the longline and the lowest in the trap net. Seasonal catching was the highest in August and the lowest in April.
소진섭(Jin-Sub So),정형일(Hyeong Il Jeong),김주원(Ju-Won, Kim),김대식(Dae-Sik Kim),김진우(Jin-Woo Kim),이성준(Seoung-Jun Lee),정승택(Seung-Taek Jung),김용한(Yong-Han Kim),이강우(Gang-Woo, Lee) 한국철도학회 2014 한국철도학회 학술발표대회논문집 Vol.2014 No.10
객화차용 폐제륜자에 대해 분쇄 특성을 평가하였다. 모두 1mm이하의 크기로 분말화가 가능하였다. 또한 상온시료보다 500℃, 900℃ 열처리 시료의 경우 파쇄 및 분쇄가 더 쉽게 이루어졌으며, 물리적 성질이나 성분 변화는 없다. 단지 마찰재의 마모만 발생하고, 원료 물질의 조성이나 특성은 변화가 없는 것으로 판단된다. Discarded brake shoes’ grinding characteristics for passenger and freight car were evaluated. It was possible to triturate the shoes into the size of less than 1mm. And the thermal treatment samples at 500℃ and 900℃ were more easily crushed and grinded than the samples at room temperature. There was no physical properties and composition changes of the shoes. We finally determined that the properties and composition of the basic raw materials weren’t changed except for abrasion of friction materials.