• 제목/요약/키워드: the East

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러시아측 동해 북서부 해역과 한국측 동해 남서부 해역 트롤 조사에 어획된 어류의 종조성 및 양적변동 (Variations in species composition of fishes caught by trawl survey in the northwestern East Sea of Russian EEZ and southwestern East Sea of Korean EEZ)

  • 손명호;윤상철;이성일;윤병선;차형기;김종빈
    • 수산해양기술연구
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    • 제51권3호
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    • pp.355-369
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    • 2015
  • To examine species composition, abundance and biomass of fishes in the northwestern East Sea of Russian EEZ, trawl survey were conducted at 31 sampling stations from 2006 to 2008. Also, trawl survey were conducted at 21 sampling stations in the southwestern East Sea of Korean EEZ from 2006 to 2008. A total of 67 fishes were collected in the northwestern East Sea of Russian EEZ, a total of 39 fishes were collected in the southwestern East Sea of Korean EEZ. Among them, a total of 53 fishes were collected in the northwestern East Sea of Russian EEZ only, and a total of 25 fishes were collected in the southwestern East Sea of Korean EEZ only. Mean abundance per area which caught by trawl survey in the northwestern East Sea ranged from a high of $116,478inds./km^2$ in 2008 to a low of $19,737inds./km^2$ in 2006. And mean abundance per area in the southwestern East Sea ranged from a high of $89,129inds./km^2$ in 2006 to a low of $8,234inds./km^2$ in 2008. Mean biomass per area which caught by trawl survey in the northwestern East Sea ranged from a high of $11,333kg/km^2$ in 2008 to a low of $2,439kg/km^2$ in 2006. And mean biomass per area in the southwestern East Sea ranged from a high of $6,273kg/km^2$ in 2006 to a low of $1,062 kg/km^2$ in 2008. Cluster analysis, based on a Bray-Curtis similarity matrix of fourth root transformed data of number of species and individuals per area, showed division into three different groups by depth in the northwestern and southwestern East Sea.

하계 제주도 동.서해역 해수의 특성과 일주 변화 (Diurnal Change and Characteristics in the Eastern and the Western Sea Waters around Jeju Islang in Summer)

  • 조인숙;최영찬;고유봉
    • 한국환경과학회지
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    • 제10권3호
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    • pp.179-185
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    • 2001
  • To investigate daily variations of water mass distribution in the west and the east parts of Jeju Island, we implemented observations from June 20 to 22, 1997. (The results are as follows : Temperatures in the east and the west were similar in the surface, but $15.02^{\circ}C$ and $13.8^{\circ}C$ in the bottom, respectively.) In the east and west, the surface and the deep salinities are 33.81, 33.34 and 34.33, 34.11 respectively. The east shows higher temperature and salinity than the west. The distributions of nitrate in the east and the west were very similar in the surface regions.(In the deep regions, however, the east shows higher than the west.) The east shows higher phosphates than the west both in surface and deep regions. The silicate had similar distributions to nitrate. Chlorophyll-a of the west was twice higher than that of the east. The daily variations of temperature and salinity were largest at 30m depth, and pH was not much changed in the depth and the pH in day was higher than that at night. The variations of nutrients were much changed in the depth, and nitrate and phosphate at night were higher than those in day. Daily variations of silicate, however, was not much changed in the observation times. Ratio of N/P in the east and the west were 13 and 16, respectively, so that the west was higher than the east. However the ratios were two times higher both in the east and the west in day, when planktons are more active than at night. Si/P ratio showed little different between day and night and between surface and deep regions. The correlation of nitrogen and phosphorus was high (plus relation), and the correlation of AOU, nitrogen and phosphorus was high(plus relation) in the east, however, not high in the west.

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어군의 음향학적 형태 및 분포특성과 어종식별에 관한 연구 1.한국 연근해 멸치어군의 형태 및 분포특성과 종식별 실험 (Study on the Acoustic Behaviour Pattern of Fish Shool and Species Identification 1. Shoal Behaviour pattern of anchovy (Engraulis japonicus) in Korean waters and Species Identification Test.)

  • 김장근
    • 수산해양기술연구
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    • 제34권1호
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    • pp.52-61
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    • 1998
  • We studied behaviour pattern of anchovy (Engraulis japonicus) shoal by a method of shoal echo integration and tested species identification by a method of artificial neural network using the acoustic data collected in the East China Sea in March 1994 and in the southern coastal waters of the East Sea of Korea in March 1995. Between areas, frequency distribution of 10 shoal descriptors was different, which showed characteristics of shoal behaviour in size, bathymetric position and acoustic strength. The range and mean of shoal size distribution in length and height was wider and bigger in the southern coastal waters of the East Sea than in the East China Sea. Relative shoal size of China Sea. Fractal dimension of shoal was almost same in both areas. Mean volume reverbration index of shoal was 3 dB higher in the southern coastal waters of the East Sea than in the East China Sea. The depth layer of shoal distribution was related to bottom depth in the southern coastal waters of the East Sea, while it was between near surface and central layer in the East China Sea. Principal component analysis of shoal descriptors showed the correlation between shoal size and acoustic strength which was higher in the southern coastal waters of the East Sea, than in the East China Sea. Correlation was also found among the bathymetric positions of shoal to some degree higher in the southern coastal waters of the East Sea than in the East China Sea. The anchovy shoal of two areas was identified by artificial neural network. The contribution factor index (Cio) of the shoal descriptors between two areas were almost identical feature. The shoal volume reverberation index (Rv) was showed the highest contribution to the species identification, while shoal length and shoal height showed relatively high negative contribution to the species identification.

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A Clinical Report on a Patient with Type 2 Diabetes

  • Shin, Ae-sook;Gwak, Ja-young;Cho, Seung-yeon;Lee, In-whan;Kim, Hye-mi;Kim, Na-hee;Park, Sung-wook;Park, Jung-mi;Ko, Chang-nam;Bae, Hyung-sup
    • 대한중풍순환신경학회지
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    • 제10권1호
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    • pp.68-73
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    • 2009
  • Type 2 diabetes mellitus (T2DM) is a progressive disorder caused by a combination of insulin resistance and 𝛽 cell dysfunction. Sogal(消渴) is a traditional Korean medical term referring to a condition pertaining 3 major symptoms - thirst, polyphasia, polyuria. Sogal has been reported to have similar characteristics with DM. This case report demonstrates a patient with T2DM complaining of typical Sogal symptoms. We diagnosed him as So-yang person Sogal and treated him with acupuncture and herbal medicine.

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동아시아 국가 간 부품무역 비교우위와 자유무역협정 (The Comparative Advantage of Intermediate Goods Trade in East Asia and Free Trade Agreement)

  • 권택호;주경원
    • 무역학회지
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    • 제41권1호
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    • pp.159-186
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    • 2016
  • 본 연구는 1991-2012년간 동아시아 국가 간 산업별 부품무역의 비교우위를 분석하여, 동아시아 FTA 체결 시 예상되는 무역과 생산분할 구조를 분석한다. 분석기간 중 동아시아 내 부품무역의 상호의존도는 지속적으로 증가하여 왔으며, 동아시아 FAT 체결 시 구조적 변화가 없다면 한국과 일본이 동아시아 내 전기 및 전자기기, 수송기기 부품수출을 더 강화하고, 중국과 ASEAN이 최종재를 수출하는 구조는 유지될 것으로 예상된다.

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동해 중부연안 벌레문치(Lycodes tanakae)의 성숙과 산란 (Maturity and Spawning of Lycodes tanakae in the Coastal Waters of the Middle East Sea)

  • 손명호;윤병선;박정호;최영민;이재봉;이해원;차형기;양재형
    • 한국수산과학회지
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    • 제47권3호
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    • pp.255-263
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    • 2014
  • We investigated the reproductive characteristics of Lycodes tanakae in the coastal waters of the middle East Sea to elucidate the species' population structure. We investigated Lycodes tanakae maturation and spawning based on samples collected by Danish seine and gill nets from January 2012 to December 2013. We analyzed monthly changes in maturity stage, gonadosomatic index (GSI), egg diameter, fecundity, and total length at 50% group maturity. The spawning period was December to February, while fecundity ranged from 1,677 eggs at 57.3 cm (total length;TL) to 6,445 eggs at 75.7 cm. The relationship between TL and fecundity (F) was $F_e=6E-05TL^{3.127}$ ($R^2$ = 0.516), and F increased with increasing TL. We estimated the TL at 50% group maturity as 60.4 cm for females and 59.8 cm for males. This study is the first report of Lycodes tanakae reproductive characteristics in the coastal waters of the middle East Sea.

동아시아 지역협력강화와 경제공동체 추진에 관한 고찰: 중-일 관계를 중심으로 (Discussion on East Asian Economic Community)

  • 민경식
    • 국제지역연구
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    • 제15권1호
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    • pp.195-218
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    • 2011
  • 현재 동아시아에서는 경제통합을 둘러싼 논의가 활발히 진행되고 있다. 1997년 발생한 동아시아 통화위기는 역내에서 제도적인 협력체 형성을 위한 논의를 본격화 시키는 계기를 마련하였다. 이후 ASEAN+3 정상회의가 정례화 됨으로써 지역경제협력 및 경제통합 논의가 시작되었다. 또한, 동아시아에서는 역내외 다국적기업이 직접투자를 통해 생산공정을 역내 산업집적지에 분산(fragmentation)시키는 공정간 분업체제가 국제적 생산·유통네트워크를 구축함으로서 경제통합을 가속화시키는 역할을 하고 있다. 이러한 역내 네트워크는 각국·지역간 FTA체결을 통해 강화되었고 경제관계의 심화로 연결되고 있다. 그러나 동아시아는 지역 내 경제격차, 문화의 다양성과 사회·정치제도의 차이, 역사적 화해 등 산적한 문제를 가지고 있어 경제공동체 구성의 앞날이 순탄하지 못할 것이 예상되고 있다. 본 연구에서는 동아시아 지역협력강화 현황을 살펴보고 EU의 경제통합 성공사례의 시사점을 통해 동아시아 경제공동체 형성의 가능성과 구성의 논점을 고찰한다.