• 제목/요약/키워드: South sea

검색결과 2,493건 처리시간 0.035초

남중국해를 둘러싼 미·중간의 갈등과 한국의 대응 (Conflicts between the US and China over the South China Sea and Korea's Responses)

  • 김강녕
    • Strategy21
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    • 통권42호
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    • pp.154-195
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    • 2017

  • This paper is to analyse conflict between the US and China over the South China Sea and Korea's responses. To this end the paper is composed of 6 chapters titled instruction; the current status of South China Sea sovereignty disputes; changes in US and Chinese maritime security strategies and the strategic values of the South China Sea; key issues and future prospects for US-China conflicts in the South China Sea; South Korea's security and diplomatic responses; and conclusion. The recent East Asian maritime security issue has evolved into a global issue of supremacy between the US and China, beyond conflicts over territorial disputes and demarcation among the countries in the region. China is pursuing offensive ocean policy to expand economic growth. The core of the maritime order that the United States intends to pursue is the freedom of navigation in the oceans and the maintenance of maritime access. China is making artificial islands in the South China Sea, claiming the sovereignty of these islands, building strategic bases in East Asia, and securing routes. The United States has developed several "Freedom of Navigation Operations" to neutralize the declaration of the territorial sea surrounding Chinese artificial islands. We can not be free from marine conflicts in the South China Sea and the East China Sea. Regarding the South China Sea dispute, it is expected that the strategic competition and conflict between the two countries will intensify due to China's failure to make concessions of core interests and adherence to the US compliance with international norms. In the midst of conflict over the South China Sea, we need a harmonious balance between our alliance security and economic diplomacy. We must continue our efforts to strengthen the ROK-US alliance but not to make China an enemy. Considering the significant impacts of the oceans on the survival and prosperity of the nation, we must continue to develop our interest in the oceans, appropriate investments and tactical strategies.

  • https://doi.org/10.22803/strategy21.2017.s42.154 인용 PDF

대한민국 서해, 남해 수중 채널 환경에서 OFDM 파라미터에 따른 실해역 성능 분석 (Performance analysis of real sea area according to OFDM parameters in the underwater channel environment of the West Sea and South Sea of Korea)

  • 정태건;임현택;임태호
    • 한국정보통신학회논문지
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    • 제24권8호
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    • pp.1086-1094
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    • 2020

  • 본 논문은 대한민국 서해와 남해에서의 거리에 따른 성능분석을 위해 실해역 측정을 했다. 서해와 남해 선박의 거리와 전송율 관점에서 측정된 실해역 데이터를 기반으로 데이터 반복 전송 횟수와 파일럿 심볼 배치 간격 파라미터를 조절하여 서해와 남해 성능 비교를 통해 수중OFDM 시스템을 성능을 분석하였다. 결론으로는 전송율과 거리에서 남해의 성능을 비교했을 때 파라미터가 같은 조건에서 남해 5km, 서해 1km 거리에서 BER성능이 남해가 성능이 비슷하였으며, 남해 10km,서해 3km에서 파일럿 심볼의 배치간격을 (𝚫f, 𝚫t) = (6, 3)의 심볼과 PRB가 반복되는 (Rf, Rt) = (2, 1)에서 남해는 1078.92bit/s 서해는 1384.57bit/s으로 전송율관점에서도 남해에서 장거리에서 높은 데이터를 보낼 수 있는걸 확인하였다

  • https://doi.org/10.6109/jkiice.2020.24.8.1086 인용 PDF KSCI

해양오염의 진단을 위한 생화학적 오염지표에 관한 연구 XI. 남해산 홍합 (Mytilus coruscus)의 콜린에스테라아제의 변화 (Study on Biochemical Pollutant Markers for Diagnosis of Marine Pollution XI. Changes in Cholinesterase Activity of the Mussel (Mytilus coruscus) in the South Sea)

  • 최진호;김대익;박수현;김동우;박청길;양동범
    • 생명과학회지
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    • 제9권3호
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    • pp.282-288
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    • 1999

  • This study was designed as a part of efforts to investigate the biochemical pollutant markers for diagnosis of marine pollutions by changes in cholinesterase activity of the mussel (Mytilus coruscus) in South Sea of Korea. Acetylcholinesterase (AChE) activities in muscle of cultured mussels in South Sea were remarkably lower (20∼41%, respectively) than those of wild mussel in Pohang(control) of East Sea. Acetylcholine (Ach) activities in muscle of cultured mussels in South Sea were remarkably lower (15∼30%, respectively) than those of wild mussel in Pohang of East Sea. Monoamineoxidase (MAO-B) activities in muscle of cultured mussels in South Sea were significantly 2∼19% higher than those of wild mussel in Pohang of East Sea. It suggests that AChE, ACh and MAO-B activities in muscle of cultured mussels of South Sea may be used as the most effective mean in a biochemical markers for early warning of environmental damages caused by organophosphorus pesticides.

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