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환수량 조절을 통한 넙치(Paralichthys olivaceus) 육상 양어장의 전기 에너지 절감 효과 분석
김남리,박노백,최진,민병화 한국수산과학회 2023 한국수산과학회지 Vol.56 No.5
This study was designed to analyze the effects of reducing water turnover in olive flounder Paralichthys olivaceus farms, focusing on olive flounder growth, decreasing electricity costs, and developing measures to ensure business stability. Daily water turnover was set at 18 in the control group and six in the experimental group. Juvenile fish were reared for 12 months. No significant differences in mean weight were observed between groups until five months. After five months, the mean weight of the control group grew significantly faster than that of the experimental group. Maintaining water turnovers leverl at six turnovers for the first five months after stocking juvenile fish and then increasing water turnover resulted in a 34.4% reduction in electricity costs compared to the control group. This approach presents a potential method to enhance the profitability of olive flounder farms and ensure stable productivity and profitability without sacrificing olive flounder growth.
김남리,정재학 한국인터넷방송통신학회 2009 한국인터넷방송통신학회 논문지 Vol.9 No.5
수중통신은 지상과는 다른 환경적 문제에 의해 고속 데이터 전송률을 얻기 위해서는 여러 가지 어려움이 있다. 이러한 문제점을 극복하기 위해서 끊임없는 연구가 계속되어 왔다. 본 논문에서는 수중 채널의 특성을 살펴보고 현재 수중 통신을 위한 다양한 송, 수신 기법에 대한 설명과 국내 외 수중 통신 동향을 알아본다.
제주지역 넙치(Paralichthys olivaceus) 양식업의 경제성 분석: 배합사료 공급 양식어가를 중심으로
김남리,한현섭,이승한,김강웅,김도훈 한국수산과학회 2022 한국수산과학회지 Vol.55 No.5
The government has implemented a policy to promote the use of extruded pellets in sustainable aquaculture by protecting fishery resources and managing the ocean environment. A survey on the production status and the cost of targeting olive flounder Paralichthys olivaceus culture farms in Jeju Island using extruded pellets was conducted. The survey results were used to examine the profitability and economic feasibility of the test farms, as well as the degree of increase in profitability and economic feasibility of the fish farms receiving government subsidies for employing extruded pellets. The economic feasibility was predicted through a sensitivity analysis of prices and production, which are the variable factors when of using the extruded pellets. Using the economic feasibility analysis, the average NPV (Net Present Value) and IRR (Internal Rate of Return) of sample farms were found to be KRW 5.8 billion and 8.9%, respectively. The result of the economic feasibility analysis of the government subsidy showed a maximum average of about 2.3 times higher NPV and a 3.8% increase in IRR in cases where government subsidies were received.
넙치(Paralichthys olivaceus) 양식산업의 가치사슬 분석
김남리 ( Nam Lee Kim ),김혜성 ( Hye Seong Kim ),김도훈 ( Do Hoon Kim ),이남수 ( Nam Su Lee ),김신권 ( Shin Kwon Kim ),민병화 ( Byung Hwa Min ) 한국수산과학회 2023 한국수산과학회지 Vol.56 No.6
This study aimed to analyze the structure of the value chain of the olive flounder aquaculture industry to increase the value of this industry. Based on the value chain theory, olive flounder aquaculture industry activities were classified as primary and support activities. The primary activities included seed production, fish production, producer distribution, consumer distribution, and consumption. The support activities were production infrastructure, organization and specialization, R&D, and government policy. A survey was conducted on the costs of seed and fish production in the primary activities to investigate the business structure, and the distribution structure was analyzed to examine distribution costs and margins. In the support activities, the recent trends in R&D and government policy were mainly examined, based on which, a measure to reduce costs and maximize profits was suggested. It is necessary to reduce costs across the production processes by improving seed quality and reducing labor, feed, and management costs, which are strongly associated with support activities. Therefore, lowering costs will be possible in the olive flounder aquaculture industry when R&D outcomes, such as species development, feed quality improvement, and aquaculture system development, are stably diffused and applied in tandem with government policy regarding the industry.
무수치 상아질에서 Amelogenin gene 및 Short Tandem Repeat(STR) 유전좌위 F13A01, LPL 분석
김남리,윤창륙,김세연 大韓法醫學會 1998 대한법의학회지 Vol.22 No.1
Theoretically, if the odontoblastic layer on the pulpal surface of the dentin is removed, it is impossible to find nucleus after the teeth has undergone endodontic therapy. So dentin does not contain genomic DNA. But it is in existence the possibility that blood permeates into the dentin by endodontic therapy and trauma. Therefore DNA in blood can be detected from the dentin layer. The purpose of this investigation is to evaluate the possibility of individual identification after detection of DNA in the dentin of endodontic created teeth. The authors isolated the human DNA from 40 endodontic treated teeth, performed AmpFLPs by PCR and electrophoresed for detection of STR loci F13A01, LPL gene and X-Y homologous amelogenin gene. The following results were obtained: 1) DNA extraction was possible in 19 endodontic treated teeth out of 40. 2) Sex determination was possible in 12 endodontic treated teeth out of 40 by detection of X-Y homologous amelogenin gene 3) F13A01 locus was detected in 6 endodontic treated teeth out of 40, observed 4 alleles(3.2, 4, 5, 6) and 5 genotypes(3.2-3.2, 3.2-4, 3.2-5, 4-5, 6-6). 4) LPL locus was detected in 7 endodontic treated teeth out of 40, observed 3 alleles(10, 11, 12) and 3 genotypes(10-10, 10-12, 11-12). From the above results DNA extraction, sex determination, amplification of STR locus F13A01, and LPL gene were possible in the endodontic treated teeth and it was suggested that endodontic treated teeth were useful and applicatable as molecular biological samples for individual identification.