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한국 남해에 출현하는 먹장어 Eptatretus burgeri의 재생산 특성
김두남,황강석,차형기,박준수,김정년,문성용,이정훈,KIM, Doo-Nam,HWANG, Kang-Seok,CHA, Hyung-Kee,PARK, Jun-Su,KIM, Jung-Nyun,MOON, Seong-Yong,LEE, Jeong-Hoon 한국수산해양기술학회 2018 수산해양기술연구 Vol.54 No.2
The reproduction characteristics of hagfish Eptatretus burgeri were examined using individuals caught in the South Sea of Korea. The spawning season and size at minimum sexual maturity of this species were characterized based on a gonad-somatic index (GSI) and monthly variation egg size (long axis). From monthly variation of GSI, the spawning season was estimated to be from August to September. Developing eggs larger than 10 mm were found in March, and the largest egg size was found in July. The first spawning length was 34.2 cm TL. Batch fecundity ranged from 13 to 117 eggs for hagfish sized from 34.2 cm TL to 77.0 cm TL, respectively, and increased linearly with total length.
김두남,손호선,안용락,박겸준,김현우,안소언,안두해 한국수산과학회 2013 한국수산과학회지 Vol.46 No.6
In 2011, the system for conserving and managing cetacean resources in Korea changed. The status of the cetacean bycatch was analyzed using a distribution certificate that was issued by the coast guard. During 2011–2012, 12 species were bycatch in Korean waters: three species of baleen whale and nine species of dolphin. The finless porpoise (Neophocaena phocaenoides) was the dominant species, followed by the common dolphin (Delphinus delphis), harbor porpoise (Phocoena phocoena), and Pacific white-sided dolphin (Lagenorhynchus obliquidens). Among the baleen whales, the common minke whale (Balaenoptera bonaerensis) was first and Bryde’s (Balaenoptera edeni) and humpback (Megaptera novaeangliae) whales appeared in the Korea Strait and East Sea,respectively. Among the dolphins, the finless porpoise ranked first in the Yellow Sea. The common dolphin, Pacific white-sided dolphin, and harbor porpoise were more frequent in the East Sea than in other waters. The cetacean bycatch was caused mainly by pots, set nets, gill nets, and stow nets. Among the three species of baleen whale, the common minke whale was caught by pots and set nets, and comprised over 68.9% of the total bycatch in 2011 and 56.2% in 2012. Comparing the bycatch caused by fishing gears by area in 2011 and 2012, 97.9% and 99.6%, respectively, of the finless porpoise bycatch in the Yellow Sea was by stow nets. In the Korea Strait, trawl bycatch comprised 67.3% in 2011 and 73.0% in 2012, followed by gill nets, set nets, and pots targeting finless porpoise and common minke whales. In the East Sea, gill nets were responsible for 46.7% in 2011 and 61.2% in 2012, followed by set nets and pots.
S생명 보험설계사들의 셀프리더십과 직무만족과의 관계에서 무형식학습 활동의 매개효과
김두남 ( Du Nam Kim ) 고려대학교 HRD정책연구소 2018 휴먼웨어 연구 Vol.1 No.2
본 연구의 목적은 S생명 보험설계사들의 셀프리더십과 직무만족과의 관계에서 무형식학습 활동의 매개효과를 실증적으로 알아보는데 있다. 이를 위해 S생명 보험설계사 231명을 대상으로 연구를 진행하였으며, 그 결과는 다음과 같다. 첫째, 보험설계사들의 셀프리더십은 직무만족에 긍정적인 관계를 갖는 것으로 나타났다. 둘째, 보험설계사의 셀프리더십과 직무만족과의 관계에서 무형식 학습 활동은 부분매개 효과를 가지는 것으로 확인되었다. 먼저, 보험설계사의 셀프리더십은 무형식 학습 활동에 긍정적인 관계를 갖는 것으로 분석되었으며, 이를 바탕으로 셀프리더십과 직무만족과의 관계에서 무형식학습 활동의 매개효과를 살펴본 결과, 무형식학습 활동은 부분매개 효과를 가지는 것으로 분석되었다. 결론적으로 보험설계사들의 직무만족을 통한 경영성과제고를 위해 보험설계사들의 셀프리더십이 잘 발휘될 수 있도록 교육프로그램을 제공하고, 무형식학습 활동이 잘 이루어질 수 있는 환경이 제공되어야 한다는 시사점을 가질 수 있다. The purpose of this study is to empirically examine the mediating effects of informal learning activities on the relationship between self-leadership and job satisfaction of S life insurance financial consultants. To do this, the study was conducted on 231 S life insurance financial consultants. The results are as follows. First, self-leadership of financial consultants has a positive relationship with job satisfaction. Second, in the relationship between self-leadership and job satisfaction of financial consultants, it was confirmed that the informal learning activities had a partial mediation effect. The self-leadership of financial consultants have a positive relationship with the informal learning activities. Based on this, in the relationship between self-leadership and job satisfaction, informal learning activities were analyzed to have a partial mediation effect. In conclusion, it can be suggested that financial consultants should provide an education program for self-leadership of financial consultants in order to improve their managerial performance through job satisfaction of financial consultants and provide an environment in which informal learning activities can be performed well.
태그 동시 출현의 동적인 특징을 이용한 개선된 태그 클라우드의 태그 선택 방법
김두남(Dunam Kim),이강표(Kangpyo Lee),김형주(Hyoung-Joo Kim) 한국정보과학회 2009 정보과학회 컴퓨팅의 실제 논문지 Vol.15 No.6
태깅 시스템은 인터넷 사용자로 하여금 태그라고 불리는 메타데이터를 글, 사진, 동영상 등에 부여하도록 하여서 컨텐츠의 검색 및 브라우징을 편리하게 하는 시스템이다. 컨텐츠의 브라우징을 위해서 태그 클라우드라는 시각적 인터페이스가 널리 쓰이고 있다. 태그 클라우드는 가장 빈도수가 높은 태그들을 알파벳 순으로 보여주고 폰트의 크기로 그 태그들의 빈도수를 반영한다. 하지만 기존의 태그 선택 방법은 몇 가지 단점들이 알려져 있다. 그래서 이 논문은 참신한 컨텐츠들을 찾을 수 있도록 Freshness라는 태그 클라우드를 위한 새로운 태그 선택 방법을 정의하였다. Freshness는 태그 동시 발생 확률 분포(tag co-occurrence probability distribution)가 동적으로 변화하는 것을 Kullback-Leibler divergence로 평균한 값이다. Allblog, Eolin, Technorati 등 세 개의 웹사이트로부터 실제 태그 데이터를 수집하여 우리의 태그 클라우드를 생성하는 시스템, ‘Fresh Tag Cloud’를 구축하였다. 이 태그 클라우드를 Allblog에서 수집한 데이터에서 전통적인 태그 클라우드와 비교했을 때 중복평균이 87.5% 감소하여서 성능이 더 향상된 것을 확인할 수 있다. Tagging system is the system that allows internet users to assign new meta-data which is called tag to article, photo, video and etc. for facilitating searching and browsing of web contents. Tag cloud, a visual interface is widely used for browsing tag space. Tag cloud selects the tags with the highest frequency and presents them alphabetically with font size reflecting their popularity. However the conventional tag selection method includes known weaknesses. So, we propose a novel tag selection method Freshness, which helps to find fresh web contents. Freshness is the mean value of Kullback-Leibler divergences between each consecutive change of tag co-occurrence probability distribution. We collected tag data from three web sites, Allblog, Eolin and Technorati and constructed the system, ‘Fresh Tag Cloud’ which collects tag data and creates our tag cloud. Comparing the experimental results between Fresh Tag Cloud and the conventional one with data from Allblog, our one shows 87.5% less overlapping average, which means Fresh Tag Cloud outperforms the conventional tag cloud.
한국 남해에 출현하는 먹장어 Eptatretus burgeri 의 재생산 특성
김두남 ( Doo-nam Kim ),황강석 ( Kang-seok Hwang ),차형기 ( Hyung-kee Cha ),박준수 ( Jun-su Park ),김정년 ( Jung-nyun Kim ),문성용 ( Seong-yong Moon ),이정훈 ( Jeong-hoon Lee ) 한국어업기술학회 2018 수산해양기술연구 Vol.54 No.2
The reproduction characteristics of hagfish Eptatretus burgeri were examined using individuals caught in the South Sea of Korea. The spawning season and size at minimum sexual maturity of this species were characterized based on a gonad-somatic index (GSI) and monthly variation egg size (long axis). From monthly variation of GSI, the spawning season was estimated to be from August to September. Developing eggs larger than 10 mm were found in March, and the largest egg size was found in July. The first spawning length was 34.2 cm TL. Batch fecundity ranged from 13 to 117 eggs for hagfish sized from 34.2 cm TL to 77.0 cm TL, respectively, and increased linearly with total length.