• Title/Summary/Keyword: 동지

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Seasonal Variations of Water Mass Distributions and Their Causes in the Yellow Sea, the East China Sea and the Adjacent Seas of Cheju Island (황해, 동지나해와 제주도 주변해역에서의 해수분포의 계절변화와 그 원인)

  • PANG Ig-Chan;RHO Hong-Kil;KIM Tae-Hee
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.25 no.2
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    • pp.151-163
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    • 1992

  • Seasonal variations of water mass distributions in the Yellow Sea, the East China Sea, and the adjecent seas of Cehju Island, are investigated. A common seasonal variation over these whole areas is shown. Warm and saline waters are extended northwestward into the Yellow Sea in winter and retreated back southeastward to the East China Sea in summer. Barotropic numerical model results suggest that monsoon winds could drive such seasonal variations. Upwind flows play an important role in the processes. In the numerical model results, upwind flows are shifted to China. It is due to energy dissipations by complicated coast lines and shallow bottom topographies in the northern part of the Yellow Sea. The shifted routes of upwind flows agrees well with that of the southward extensions of the Yellow sea Bottom Cold Waters in summer.

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Investigation of Demersal Fisheries Resources of the East China Sea - 2 . Hydroacoustic - Bottom Trawl Survey , November 1989 - (동지나해 저서어류의 자원조사 연구 - 2 . 저서어류자원의 음향학적 조사 ( 1989년 ) -)

  • 박중희
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.26 no.2
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    • pp.143-150
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    • 1990

  • A cooperative Korea-Japan investigation for the demersal fisheries resources of the East China Sea was carried out by using the training ship Oshoro Maru belong to Hokkaido University Japan, during 5-12 November, 1989. The research vessel sampled 24 stations with demersal trawls on the East China Sea continental shelf, and 96 nautical miles of track line were surveyed hydroacoustically. The echo sounder used during the survey was of a scientific type having echo integration capabilities and the computer system was programmed to obtain echo integration data for each depth stratum between the transducer and the bottom. The target strength of fish school(TS per 1kg) was estimated from the relationship between mean volume backscattering strength and catches caught by the demersal trawls. The results obtained can be summarized as follows: 1. Approximately 96 species were identified from survey catches. 2. The mean volume backscattering strength for the layer occupied by bottom trawls at 25 and 100 KHz were-63.9 dB and -67.3 dB, respectively. Then the average catch per unit time of each trawl haul was 58.8 kg/hour. 3. The mean volume backscattering strength for the entire layer between the transducer and the bottom at 25 and 100KHz were -61.9 dB and -67.0 dB, respectively. 4. The mean fish school target strength per unit weight(TS/kg) at 25 and 100 KHz were -23.6 dB/kg and -26.6 dB/kg, respectively.

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Investigation of Demersal Fisheries Resources of East China Sea - 3 . The Oceanographic Condition of the East China Sea in November , 1989 - (동지나해 저서어류의 자원조사 연구 - 3 . 1989년 11월 동지나해의 해황 -)

  • 김정창
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.26 no.2
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    • pp.151-166
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    • 1990

  • Using the data observed on the Oshoro-maru from November 4 to November 12, 1989 in the East China Sea, the oceanographic conditions were investigated. The results are as follows: The oceanographic condition of surface layer was divided into two regions. One was the Tsushima Current Waters and the other was the China Coastal Waters. The oceanic front was formed between above two waters. Tsushima Current Waters had high temperature ranging 22~24$^{\circ}C$, high salinity ranging 33.5~34.5$\textperthousand$ and low D.O less than 4.5ml/l. And China Coastal Waters had low temperature ranging 18~2$0^{\circ}C$, low salinity less than 23.0$\textperthousand$ and high D.O ranging 4.0~5.0ml/l. In the case of the bottom layer, Tsushima Current Waters and China Coastal Waters appeared the same as the surface layer. In addition, the Yellow Sea Bottom Cold Waters and the Southern Bottom Waters of East China Sea distributed together with two surface waters above. The was temperature ranging 15~19$^{\circ}C$, salinity 34.5$\textperthousand$ and low D.O ranging 2.0~3.5ml/l and that was temperature less than 1$0^{\circ}C$, salinity less than 33.3$\textperthousand$ and high D,O greater than 4.5ml/l. The waters of intermediate characteristics between China Coastal Waters and Tsushima Current Waters seem to be resulted from the mixing occurred between the above tow waters, and it had temperature of 20.5~22.$0^{\circ}C$, salinity of 32.3~33.3$\textperthousand$.

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우리는 "낙농호"라는 한 배를 탄 동지

  • 임문식
    • 월간낙농육우
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    • v.19 no.12 s.212
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    • pp.107-108
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    • 1999

  • 낙농자조금사업은 우리나라 전체 낙농가들이 스스로 참여하여 우유 소비 홍보를 통한 소비 촉진과 판로 확대를 기함에 그 목적이 있다. 낙농자조금에 의한 공익적이고 공통분모적 우유소비홍보가 체계적으로 이루어지기전까지는 각 유업체별 유제품 홍보만이 주류를 이루었고 낙농산업 전체를 대변하는 공익적 홍보는 없었다.

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미국 주요 타이어 메이커 경영실적

  • Korea Tire Manufacturers Association
    • The tire
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    • s.108
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    • pp.36-39
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    • 1983

  • 미국의 경제지「Fortune」에 발표된 예년의 "전미광공업 500사의 82년도 랭킹" (동지 5월호에 게재)에 의하면, 타이어 메이커의 5대사 중 Goodyear를 제외한 나머지 4사 (Firestone, Goodrich, General, Uniroyal)는 모두 감수감익으로 이익율도 500사 평균을 크게 하회하고 있다. 5대 타이어 메이커의 업적을 일람표로 작성하고 특히, Goodyear와 Firestone의 업적배경을 살펴보기로 한다.(편집자 주)

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