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        검색결과 2,451

        841.
        1986.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In accordance with a rapid growth of demani on aquatic animals, researches of the unused fishery resources On the deep sea b~d in the Korean Waters has been and will be required. The authors carried out a series of fishing experiments to investigate the available resources and to find the effective fishing method on the deep sea bed of the Korean East Sea. In the experiments, 19 kinds of traps which are different from each other in shape, mesh size and entrance diameter were used. The fishing experiments w~r;; carried out in four areas of 20Dm, 600.'11, 800m and 1000.'11 deep respectively, by the Pusan 402 (30:) GT) and the Pusan 403 (279GT), the training ships of National Fisheries University of Pusan, during August, 1986. The catc~ were analyzed with the size, the depth and the construction of traps. The results obtained can be summarized as follows: 1. Main species of the catch w~re pink shrimp, Pandalus bolelis, a kind of welks, Buccimum striatissimum and a kind of larg~ crabs. Chiono8cetes japonicus and the another species were few. 2. The CPUE value (expressed by the number of catch per trap in this paper) of pink shrimp was the highest in the depth of 20J-n around, and the value in the depth of 600.'11 or more decreased gradually with an increase of the depth. But, the value of Buccimum straitissimum was much higher in the depth of 6:J:)!1I or more than that in the depth of 200m around. On the other hand, the value of Chion:Jecetes japonjcus was very low in general. 3. The iniividual body size of the catch differed with the depth. Pink shrimps caught in the depth of 200m around were smaller than those in the depth of 600.'11 or more. In contrast with this, Baccimum striatissim:t.m caught in the depth of 200m around were larger than those in the depth of 600.'11 or more. 4. Depending on the selection curve in Ishida's method for the mesh size of trap webbing, the carapace length of pink shrimp and the shell length of Buccimum striatissimum which are equivalent to 100% relative catching efficiency can be estimated about 3.5cm and 6.5cm or so respectively. 5. The number of catch of pink shrimp and Buccimum striatissimum by the 60.'1'1.'11 entrance diameter of trap were less than that by the 90mm, 120mm and 150mm, even thogh the diffierence am~r, g 9:Jmm, 120.'11.'11 and 150:1'.'11 are not so large.
        4,000원
        842.
        1986.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        4,000원
        843.
        1983.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        4,500원
        844.
        1983.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        6,300원
        845.
        1982.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        7,000원
        846.
        1982.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Human activities have gradually damaged the land-water ecosystem, and natural processes, in turn, produce grievous losses to human society. Numerous environmental laws have been enacted to safeguard people and their investments from pollution and other forms of air, water, and land degradation. There have also been massive environmental changes in the twentieth century. These have been produced by a combination of urbanization, population growth, production of new machines rapidly increasing fuel consumption. An important objective of environmental research work and study should be directed to determine which types of plant construction and resource extraction methods minimize damages to the land-water ecosystem. This objective must be linked to attempts to understand and find solutions to the environmental problems that exist, whether rfatural or the result of human activities.
        4,000원
        849.
        1978.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        4,000원
        850.
        1978.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        4,300원
        851.
        1976.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        3,000원
        853.
        1972.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Yellow croacker, Tseudociaena manchurica Jordan et Thompson in the Yellow Sea and East China Sea are subjected to be caught by trawl nets throughout the year. First indices of population size in every period 8re calculated. Considering present status of the yellow croacker fishery and ecology of the fish, mathematical models must have been established in order to determine catchability coefficient, natural m ortali ty, fishing mortality, recrui ting coefficient of the fish ing ground, and dispersion coefficienl from the fishing ground. The results an, summmarized as follows: Catchabil i ty coefficient (C) = 2. 2628 × 10-5 Natural mortality (M)=0.3293 Population for lhe first half season(July 1st to the following January 3lst) Initial population = 14, 621 /MT Recruitment =45, 597 /MT Natural mortality = 8, 660 /MT Final population =42, 970 /MT Population for the latter 1131f scason(February 1st to June 30th) Initial population = 69, 170 /MT Dispersion =51, 688 /MT Natural mortality = 6, 082 /MT Final population = 1, 802 /MT.
        4,500원
        855.
        1971.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        There has been established bilateral and multilateral agreements of fisheries in the North Pacific, such as, the Agreements of International North Pacific Fisheries Commission, of Japan-Soviet Fisheries Commission for the Northwest Pacific and of the Furseal and King Crab. The auther reviewed these agreements and discussed about the growth of the International Fisheries Agreements in the future. This paper concerns with the present status of demersal resources which are important in commercial fisheries and caught in the North Pacific.
        4,200원
        857.
        2023.06 KCI 등재 서비스 종료(열람 제한)
        This study examines the changes in environmental resource perception and residential areas on Jeju Island. This study focuses on Jeju Island, which has prepared a legal framework for the total amount of environmental resources. The study identifies Jeju residents and non-provincial citizens, analyzes the differences between them, and suggests the future direction of the total amount system for environmental resources. This study aims to provide essential data necessary for successfully implementing the assigned environmental resources. This will contribute to sustainable growth and preserving valuable environmental resources in an era where environmental importance is increasing. The findings indicate that both Jeju residents and non-provincial citizens are satisfied with the current environmental resources on the island. However, when comparing past and current environmental resources, Jeju residents generally indicated lower satisfaction over time, whereas non-provincial citizens perceived an improvement over time. While overall satisfaction with the natural and local environment remains high, there is a notable increase in perception regarding the ecological value of plants, wildlife, wetlands, and Gotjawal areas compared to the past. These findings emphasize the importance of incorporating these high-priority components into the total environmental resource system for future consideration.
        858.
        2023.06 KCI 등재 서비스 종료(열람 제한)
        한국지질자원연구원은 기관차원의 연구활동에 따른 온실가스 감축 기여를 활성화하고자, 온실가스 배 출량 산정 가이드라인을 개발하고 이를 적용하고자 하였다. 이에 시범적으로 2022년도에 현재 수행중인 기본사 업 34건의 R&D 활동 그 자체에 의한 온실가스 배출량 규모를 파악하였다. 개별과제의 연구계획 내용과 예 산내역을 분석하여 여러 온실가스 배출범위와 경계를 정하였으며, 직접배출원, 간접배출원, 기타 직·간접 배출원 등 22건을 도출하여 해당 연구활동에 의한 배출량을 시범 산정하였다. 그 결과, 한국지질자원연구원 2022년 도 기본사업 R&D 활동에 의한 온실가스 배출량은 전체 2,041.506 tCO2eq으로 산정되었고, 그 중 직접 배출 량은 793.235 tCO2eq (38.86%), 간접 배출량은 305.647 tCO2eq (14.97%), 기타 직·간접 배출량은 942.624 tCO2eq (46.18%) 이었다. 2022년도 한국지질자원연구원의 기본사업 투입예산(총액 966.61억원)에서 1억원당 온실가스 배출량은 2.11 tCO2eq으로 산정되었고, 참여연구원 1인당(참여율 100% 감안) 온실가스 배출량은 4.800 tCO2eq으로 추정되었다. 이러한 연구과제의 온실가스 배출량 산정연구는 1회성 보다는 지속적으로 매 년 정기적으로 수행하고, 최소 5년 이상 정도의 축적이 이뤄져야만 연구분야 특성과 연구방법의 상이에 따른 배출량 증감 및 특이사항의 정형화가 가능할 것이며, 향후 배출량 관리방향 설정과 ESG경영의 환경부문 기 여도 평가에도 활용이 가능할 것으로 사료된다.
        859.
        2023.05 서비스 종료(열람 제한)
        중국은 광대 한 국가이며 각 지역마다 문화적 배경이 다르며 이는 각 지역의 관광 발전에 중요한 자원이 다. 자원마다 관광에 미치는 영향이 다르며 관광의 지속 가능하고 건전한 발전을 촉진하기 위해서는 미 래 지향적인 관점에서 관광 관련 자원을 차별화하고 통합하고 관광 산업 시스템을 개선하여 관광의 발 전 잠재력을 자극해야한다. 따라서 본 논문에서는 옌타이 관광 산업의 맥락에서 관광 자원 개발을 고 려하고 자원 개발의 우선 순위를 식별한다.
        860.
        2022.11 KCI 등재 서비스 종료(열람 제한)
        This study aimed to investigate the psychological effect of a healing agricultural program using insect resources and to confirm the persistence of the healing effect. The applied insect was silkworm Bombyx mori (Linnaeus) and 28 adolescents from local children’s centers were used as the subjects. The healing agricultural program was applied at the centers for 4 weeks, and stress was measured using salivary ɑ-amylase levels and a survey on life satisfaction, happiness, and insect preference. The results indicated that stress levels decreased, and life satisfaction and insect preference increased after participating in the the healing agricultural program. Furthermore, it was confirmed that this healing effect continued until 4 weeks after the end of the program.