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김병관 ( Pyungkwan Kim ),이경훈 ( Kyounghoon Lee ),김도훈 ( Dohoon Kim ),이건호 ( Geonho Lee ),안희춘 ( Heui Chun An ),김성훈 ( Seonghun Kim ),양용수 ( Yongsu Yang ) 한국어업기술학회 2015 수산해양기술연구 Vol.51 No.4
The coastal stow net (stow net hereafter) in Korea is one of the major fishing methods for yellow croaker (Larimichthys polyactis), ribbon fish (Trichiurus lepturus), and anchovy (Engraulis japonicus). In terms of energy efficiency, the stow net fishery is more competitive than towing fishing gears such as trawl gears. The fishing vessels in stow net fishery have consumed less fossil fuel and also have had less carbon dioxide emission into the atmosphere. however, the stow net fishery is necessary to be regulated due to its increased output of the fleet. Therefore, it is required for fisheries authorities to manage the fishing capacity or fishing power for the assurance of fishery’s sustainability. For fisheries management authorities, it is necessary to quantify data related to fishing capacity and fishing power to deploy fishery policy in a sustainable way. In terms of data for decision-making, Data envelopment analysis (DEA) method was conducted to estimate fishing capacity. Fishing power index (FPI) was also applied to calculate relative fishing power to approach the problem in a quantitative way.
트롤 끝자루에 대한 보구치(Argyrosomus argentatus)의 망목 선택성
김병관 ( Pyungkwan Kim ),박창두 ( Chang-doo Park ),이춘우 ( Chun-woo Lee ),김형석 ( Hyung-seok Kim ) 한국수산해양기술학회(구 한국어업기술학회) 2019 수산해양기술연구 Vol.55 No.1
The annual production of silver croaker (Argyrosomus argentatus) in Korean towed fishing gears has been increased in recent five years. In 2017, the annual production of silver croaker in metric ton was increased 99.2% compared to 2013. However, the research for silver croaker has been focused on ecology in Korea. There has not been enough research in terms of fishing gears. Therefore, the research for retention probability for towed gears was conducted on covered codend method from June, 2016 to July, 2018. During the experiments, the total catch of silver croaker was 1,563. The geometry of the experimental trawl gear was controlled by trawl monitoring system; net height was 3.3 m, distance of trawldoors was 59.8 m and distance of wing net was 17.3 m. The selection curve for silver croaker was estimated by a logit model. The analysis was applied with the confidence interval to reduce uncertainty of the estimation. The l<sub>50</sub> was 13.87 cm and its selection range was 2.71 cm. P-value was estimated at 0.99. The mesh size for silver croaker in towed gears needs to be adjusted by considering its minimum maturity length, stakeholder’s interests and fisheries regulations.
친환경 생분해성 그물실의 재질에 따른 연안 유자망의 어획성능 특성
김성훈 ( Seonghun Kim ),김병관 ( Pyungkwan Kim ),정성재 ( Seongjae Jeong ),배재현 ( Jaehyun Bae ),임지현 ( Jihyun Lim ),오우석 ( Wooseok Oh ) 한국어업기술학회 2018 수산해양기술연구 Vol.54 No.2
The objective of this study was to estimate physical properties and fishing performances of net twine with improved PBS copolymer resin (Bio-new), the existing PBS/PBAT blending resin (Bio-old) and commercial Nylon (Nylon). The tensile strength of Bio-new monofilament was equal to Bio-old and the elongation of Bio-new was about 6 % higher than that of Bio-old in wet condition. The physical properties tests were carried out to estimate breaking load and stiffness in dry and wet conditions, respectively. In the results, the breaking load of Nylon netting was the highest whereas the elongation of Bio-new was 1.4 times higher than that of Nylon netting in wet condition. The breaking load of Bio-old netting was about 9.2 % higher than that of Bio-new netting. However, the elongation of the Bio-new netting was about 3% higher than that of Bio-old. The stiffness of the Bio-new compared to Bio-old was improved about 34 % in dry condition and about 32 % in wet condition. The filed experiments of the fishing performance were conducted with three kinds of drift nets with different netting materials in the coastal sea of Jeju. The each experimental drift net made of different materials showed the similar fishing performance. Bio-old drift net yielded less catches of small sized yellow croaker than other drift nets. The netting materials affected the fishing performance and length distribution of catches in the drift nets.
여성 성인학습자의 다중역할갈등 대처방법에 대한 합의적 질적 분석
김영빈(Youngbin Kim),전용오(Yong O Jun),김병관(Pyungkwan Kim),이자명(Jamyoung Yi) 학습자중심교과교육학회 2021 학습자중심교과교육연구 Vol.21 No.21
목적 여성 성인학습자들은 어떤 역할들을 수행하며 다중역할갈등에 어떻게 대처하는지를 분석하고자 하였다. 방법 이를 위해 원격대학에 재학 중인 여성 성인학습자 183명을 대상으로 자료를 수집하여 합의적 질적 분석-수정본(CQR-M)의 절차에 따라 결과를 도출하였다. 구체적으로는 자료수집, 합의팀 구성, 범주 구성, 코딩 및 빈도표시가 절차에 따라 진행되었으며, 이렇게 도출된 결과에 대한 연구팀의 분석과 해석 과정이 있었다. 결과 여성 성인학습자들은 가족관련 역할, 학교관련 역할, 사회에서의 역할 등 여러 역할을 수행하였다. 동시 수행하는 역할의 개수는 3~16개로 다양했으며, 5~8개라는 응답이 전체의 73.8%를 차지하였다. 여성 성인학습자의 다중역할갈등 대처행동은 문제에 직접 대처, 수용과 성장, 자기관리, 사회적 지지 추구, 회피의 5개 범주로 도출되었다. 가장 많은 빈도를 차지한 것은 ‘문제에 직접 대처’(47.7%)로 가족과 가사 분담하기, 가족 외 사람에게 도움 구하기, 시간배분과 우선순위 결정하기, 갈등상대와 대화로 문제 해결하기, 직장업무 조정하기, 더 노력하거나 최선을 다하기 등의 하위 범주가 포함되었다. 다음 순위는 ‘수용과 성장’(20.0%)으로 다 잘하려고 하지 않기, 공부를 통한 긍정적 해석과 미래 준비, 경험을 통한 성장, 종교를 통한 수용 등이 포함되었다. 그 다음은 명상, 스트레스 해소, 건강관리 등의 ‘자기관리’(18.2%), 위로, 격려, 조언 등 ‘사회적 지지 추구’(10.8%), 참음, 상황회피, 포기 등의 ‘회피’(3.3%) 방법이었다. 결론 여성 성인학습자들은 동시에 다양한 역할을 수행하고 있고, 다중역할갈등에 다양한 방법으로 대처하였다. 특히 ‘공부’를 통한 대처가 특징적으로 도출되었다. 여성 성인학습자들의 다중역할 수행을 지원하는 진로교육 및 상담, 사회인식 변화의 필요성과 방향을 논의하였다. Objectives This study was conducted to analyze female adult learners’ role performances and coping strategies with multiple role conflicts. Methods For the purpose, data were collected from 183 female adult learners attending open universities, and the results were derived according to the procedures of the Consensus Qualitative Analysis-Corrected Version (CQR-M). Specifically, data collection, consensus team composition, category composition, coding and frequency indication were conducted according to the procedure. Then, researchers analyzed and interpreted the results derived in the previous procedure. Results Female adult learners played several kinds of roles: family-related, school-related and social roles. The number of simultaneously performed roles varied from 3 to 16, and 73.8% of the total respondents performed 5 to 8. Female adult learners multiple role conflict coping behaviors were derived into five categories: active coping, acceptance and growth, self-management, seeking social support, and avoidance. The most frequent were “active coping” (47.7%), which included subcategories such as sharing housework with family members, seeking help from non-family members, time allocation and prioritization, resolving problems through conversation with conflict partners, coordination of work tasks, and trying harder or doing their best. The next ranking was “acceptance and growth” (20.0%), which included not trying to do everything well, positive interpretation and preparation for the future through study, growth through experience, and acceptance through religion. The following were “self-management” (18.2%), such as meditation, stress relief, and health care, “seeking social support” (10.8%), such as consolation, encouragement, and advice, and “avoidance” (3.3%), such as patience, evasion of situations, and abandonment. Conclusions The various ways of coping with role conflicts of female adult learners were analyzed, and in particular, coping through “study” was derived characteristically. Suggestions and limitations of the study were discussed as well.