• 제목/요약/키워드: Unassociated school

검색결과 8건 처리시간 0.022초

과학옵서버 조사에 의한 인도양 수역 한국 다랑어 선망선 FAD 조업의 부수어획실태 (Characteristics on bycatch in Korean tuna purse seine fishery associated with FAD in the Indian Ocean by scientific observer programs)

  • 이성일;김두남;이경훈
    • 수산해양기술연구
    • /
    • 제56권4호
    • /
    • pp.277-291
    • /
    • 2020
  • In order to understand characteristics on bycatch of Korean tuna purse seine fishery, especially operations associated with Fish Aggregating Device (FAD) in the Indian Ocean, we conducted analyses related to bycatch by school association type (unassociated school, FAD associated school and log associated school) using the data collected by scientific observers from 2016 to 2018. The FAD used by Korean tuna purse seine fishery in the Indian Ocean was a drifting FAD, which belongs to non-entangling FADs according to the category proposed by the International Seafood Sustainability Foundation (ISSF). The target species of Korean tuna purse seine fishery are skipjack, yellowfin and bigeye tunas, accounting for 99% of the total catch. The ratio of bycatch was 0.97% in total catch and the discard accounted for less than 1%, indicating that most catch was retained on board. In terms of bycatch ratio by school association type, it accounted for 0.12% for unassociated school, 1.09% for FAD associated school and 1.25% for log associated school. As for the catch proportion of shark species by school association type, it accounted for 0.01% for unassociated school, 0.11% for FAD associated school and 0.10% for log associated school, which showed that unassociated school type was the lowest to affect bycatch of non-target and shark species. Given the proportion of bycatch compositions, however, it is considered that FAD associated school of Korean tuna purse seine fishery has less caught bycatch species of non-target and shark, compared to other fleets operating in the Indian Ocean.

중서부태평양 한국 다랑어 선망어업의 조업 특성 (Characteristics of the Korean tuna purse seine fishery in the Western and Central Pacific Ocean)

  • 문대연;양원석;김순송;고정락;김은정
    • 수산해양기술연구
    • /
    • 제41권4호
    • /
    • pp.263-270
    • /
    • 2005
  • This paper summarizes characteristics of the Korean tuna purse seine fishery in the Western and Central Pacific Ocean (WCPO). Major fishing area for the Korean tuna purse seine fleet consisted of the waters of Micronesia, Papua New Guinea and Solomon Islands and adjacent high seas between $130^{\circ}E-180^{\circ}$ The center of the Korean tuna fishing ground was in the vicinity of $180^{\circ}$ during the El - $Ni{\tilde{n}}$o event but was formed in $150^{\circ}-160^{\circ}$E during the La - $Ni{\tilde{n}}o$ event. As compared with other major purse seine fleets in WCPO, the Korean fleet set more on unassociated schools of tuna, while Japan, USA and Chinese - Taipei fleets accounted for more than 50% of sets on log - associated schools. In general, CPUES for log - associated schools were higher than those for unassociated schools and catch composition showed that yellowfin ratio was higher in unassociated shools than log - associated schools. Length frequency represented higher percentage of mid - sized yellowfin than Japanese and USA fleets. Daily set numbers and CPUE were high before 7 am and remained almost constant from 7 am to 3 pm but decreased rapidly after 3 pm and 5 pm, respectively. Catch composition per set indicated that pure skipjack school was caught most frequently, followed by mixed school and pure yellowfin school as the least, but CPUE was highest for the mixed school.

Planning of alternative countermeasures for a station blackout at a boiling water reactor using multilevel flow modeling

  • Song, Mengchu;Gofuku, Akio
    • Nuclear Engineering and Technology
    • /
    • 제50권4호
    • /
    • pp.542-552
    • /
    • 2018
  • Operators face challenges to plan alternative countermeasures when no procedure exists to address the current plant state. A model-based approach is desired to aid operators in acquiring plant resources and deriving response plans. Multilevel flow modeling (MFM) is a functional modeling methodology that can represent intentional knowledge about systems, which is essential in response planning. This article investigates the capabilities of MFM to plan alternatives. It is concluded that MFM has a knowledge capability to represent alternative means that are designed for given ends and a reasoning capability to identify alternative functions that can causally influence the goal achievement. The second capability can be applied to find originally unassociated means to achieve a goal. This is vital in a situation where all designed means have failed. A technique of procedure synthesis can be used to express identified alternatives as a series of operations. A case of station blackout occurring at the boiling water reactor is described. An MFM model of a boiling water reactor is built according to the analysis of goals and functions. The accident situations are defined by the model, and several alternative countermeasures in terms of operating procedures are generated to achieve the goal of core cooling.

비강 T/NK 세포형 림프종 1례 (A Case of Nasal T/NK-cell Lymphoma)

  • 이정복;전인상;임호준;오영하;김지혜
    • Clinical and Experimental Pediatrics
    • /
    • 제46권12호
    • /
    • pp.1266-1270
    • /
    • 2003
  • 저자들은 비강내 종괴로 내원한 14세 환아에서 종괴 생검 및 면역 표현형 검사로 비강 T/NK 세포형 림프종으로 진단하고 치료 중인 1례를 보고하는 바이다.

법랑질 형성 부전증에 관한 증례 보고 (AMELOGENESIS IMPERFECTA : REPORT OF CASE)

  • 김재곤;이영수;허선;박종하;백병주
    • 대한소아치과학회지
    • /
    • 제25권3호
    • /
    • pp.598-603
    • /
    • 1998
  • 본병원 소아치과에 내원한 유치와 영구치 모두에 법랑질 형성 부전증을 가지고 있는 환자에 대해 교합면의 마모를 방지하여 교합고경을 유지하기 위해 유구치부 stainless steel crown 및 맹출 중인 제 1 대구치에 sealant, 전치아에 걸쳐서 주기적인 불소도포를 이용해 치료하여 양호한 결과를 얻었다.

  • PDF

중서부태평양수산위원회 보존관리조치가 우리나라 다랑어선망어업에 미친 영향과 향후 대응 방안 (Study on effects and strategies of Korean tuna purse seine fishery affected by conservation management measures of Western and Central Pacific Fisheries Commission)

  • 이미경;이성일;이춘우;김두남;구정은
    • 수산해양기술연구
    • /
    • 제52권3호
    • /
    • pp.197-208
    • /
    • 2016
  • The WCPFC CMMs related to tropical tunas have been strongly restricting fishing capacity and operating activities of main fisheries, especially purse seine fishery. In terms of changes in fishing trend by implementing relevant measures of FAD set, the number of FAD set by Korean purse seine fleet showed a decreasing pattern with the lowest level of FAD set proportion among major distant water fishing nations. With regards to the FAD closure, there was no significant change in fishing effort but a drop in catch, especially bigeye tuna during the period of FAD closure. Moreover, it showed closely similar trends between the number of FAD set and bigeye tuna catch. In terms of measures related to the high sea area including a ban on fishing on the HSP and limitation of fishing days on the high sea by flag state, proportions of catch and effort on the high sea had sharply declined after implementing those measures. As relevant measures are expected to be strengthened, it should pay attention to change of coastal nations policies and focus on improving fishing efficiency of unassociated school set with multi-pronged efforts.

중서부태평양 한국 다랑어 선망어선의 조업실태 분석 (Analysis on fishing conditions of the Korean tuna purse seiner operating in the western and central Pacific Ocean)

  • 박용예;이유원;이대재
    • 수산해양기술연구
    • /
    • 제52권4호
    • /
    • pp.356-363
    • /
    • 2016
  • To suggest more efficient fishing operation, it was analyzed using five years (2011~2015) catch data of six Korean-flagged tuna purse seiners (with 1000 mt of haul capacity) operating in the western and central Pacific Ocean. In terms of annual total catch, it presented a two-year cycle of variation on catch, showing that catches of 2012, 2014 and 2015 were high, whereas those of 2011 and 2013 were low. The proportions on fishing effort of associated set were around 21.9~30.8% having 21.5~45.0% of total catch. In this study, there was no significant difference between catches of unassociated set and associated set. When considered having good fishing conditions, fishing activities were concentrated in the areas of Papua New Guinea (PNG) and Kiribati, while it showed that fishing ground spreaded out to the areas of not only PNG and Kiribati but also Federated States of Micronesia (FSM), Tuvalu and Solomon islands. The average number of fishing days was 271 with a range of 246~285. As restriction on fishing operation such as reduction of fishing days and higher fishing fee are expected to strengthen, the result of this study will be helpful to select more efficient fishing methods for purse seine fishery based on fishing conditions.

자기애와 성폭력 가해 행동의 관계: 특권분노/허용적 성태도의 매개효과와 인지적 정서조절 전략/공감의 조절효과 (Narcissism and sexual Aggression: The Mediating Effects of Entitlement Rage and Sociosexuality, and Moderating Effects of Cognitive Emotion Regulation Strategies (CERS) and State Empathy)

  • 박다원;이인혜
    • 한국심리학회지 : 문화 및 사회문제
    • /
    • 제21권3호
    • /
    • pp.377-394
    • /
    • 2015
  • 본 연구는 자기애성 성격과 성폭력 가해 행동의 관계, 그리고 이 둘 간을 매개 또는 조절하는 심리적 변인들을 확인하여, 성폭력 범죄에 대한 효과적인 치료 방법 개발과 교육 및 예방에 기여하고자 하였다. 강원대학교 남학생 264명에게 자기애적 성격 검사(NPI), 병리적 자기애 검사(PNI), Hendrick 다차원적 성태도 질문지(MSAS), 인지적 정서조절 전략 질문지(CERQ), 아동성폭력범 공감척도(CMEM), 성폭력 가해 행동 질문지를 실시하였다. 위계적 회귀분석을 이용하여, 특권분노와 허용적 성태도의 매개효과와 인지적 정서조절 전략과 상태공감의 조절효과를 검증하였다. 위계적 회귀분석 결과, 특권분노의 매개효과와 인지적 정서조절 전략의 조절효과는 나타나지 않았지만, 허용적 성태도의 매개효과와 상태공감의 조절효과는 유의미하였다. 이는 허용적 성태도가 성폭력의 원인이 될 가능성이 높고, 상태공감이 낮은 경우에 자기애가 높으면 성폭력이 급격히 증가한다는 것을 의미한다. 구체적으로, 자기애가 높은 경우에 상태공감이 낮을 때는 성폭력이 높게 나타났지만, 자기애가 높더라도 상태공감이 높다면 성폭력이 낮은 것으로 밝혀졌다. 이는 낮은 상태공감이 성폭력에 대한 위험요인으로 작용하는 반면, 높은 상태공감은 성폭력에 대한 보호요인임을 의미한다. 본 연구의 결론을 요약하면 다음과 같다. 성폭력 가해 행동의 원인은 특권분노보다는 허용적인 성태도에 의한 것일 가능성이 높다. 또한, 성폭력에 대한 치료적 개입에는 정서조절 훈련에 비해 상대적으로 상태공감을 증가시킬 수 있는 훈련이 더 효과적이라고 할 수 있다. 논의에서 보다 자세한 결론과 시사점 및 제한점을 제시하였다.

  • PDF