• 제목/요약/키워드: harbours

검색결과 33건 처리시간 0.023초

우리나라 연안의 상해교통관제시스템 설치를 위한 기초연구 항만간 교통량분포의 추정알고리즘 ( An Estimation Algorithm of the Trip Distribution of Ships between Harbours)

  • 이철영;구자윤
    • 한국항해학회지
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    • 제11권2호
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    • pp.89-97
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    • 1987
  • Trip distribution plays an important role in the analysis and network evaluation phases of the transportation and the traffic planing process. In this paper, the authors propose an algorithm for estimating the trip distribution between each pair of zones such as harbours and straits. The algorithm is formulated by using the observed data and introducing the concept of entropy when observed data between harbours were not existed. In order to examine the feasbility , the proposed algorithm is applied to ships on traffic route in Hanryu Sudo and in Korea costal waterway. And also, its validity is examined by comparing another algorithm through statistical test.

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Fouling Bryozoa of Korean Ports and Harbours

  • Chae, Hyun Sook;Seo, Ji Eun
    • Animal Systematics, Evolution and Diversity
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    • 제35권4호
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    • pp.204-217
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    • 2019
  • This study aims to investigate the fouling bryozoans which attach to artificial structures of Korean ports and harbours. The materials have been collected from 56 sites during the period from 2008 to 2012. As a result of the present study, 40 species of fouling bryozoans were identified. The most abundant species are Bugula neritina (Linnaeus, 1758), Tricellaria occidentalis (Trask, 1857), Watersipora subtoquata (d'Orbigny, 1852), and Cryptosula pallasiana (Moll, 1803). Three species, Flustrellidra armata Grischenko, Seo and Min, 2010, Cauloramphus korensis Seo, 2001, and Parasmittina contraria Seo, 1993 are endemic to Korea. A total of 70 species of fouling bryozoans have been reported in Korea with 16 new bryozoans resulting from this study.

동북아 물류중심과 광양항 (Strategy for Kwangyang Port as a Logistics Center of East Asia)

  • 최정규
    • 경영과정보연구
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    • 제12권
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    • pp.203-226
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    • 2003
  • These days the surroundings around harbours are rapidly changing. Particularly in the age of Pacific Rim it is rather clear that the competition among the harbours in Northeast Asia region where are so many of worldwidely famous harbours might be intense. From 1980s on the industrialization and urbanization in the area of Kwang Yand-Bay, thanks to the regional development program, have been speedily under way. And in the year of 1987 the 1st development program of Kwang Yang-Bay container quay was started and is scheduled to be completed by the end of 1997. As the completion of the program it is expected that in 1998 the newly-opening Kwang Yang-Bay container quay on one hand will play a role in relieving the awaiting-time of vessels in Pusan Port, and on the other hand it will contribute to the balanced development of the country. In this context this thesis conducted Its study on the effect of the specification and facilities of a harbour, and especially on the effect on the regional economy resulted by the development & developmental static of Kwang Yang-Bay container quay. And progressively in the thesis the plan to provide Kwang Yang-Bay container quay with competitiveness was suggested.

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Survey of research on the optimal design of sea harbours

  • Diab, Hassan;Younes, Rafic;Lafon, Pascal
    • International Journal of Naval Architecture and Ocean Engineering
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    • 제9권4호
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    • pp.460-472
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    • 2017
  • The design of harbours, as with any other system design, must be an optimization process. In this study, a global examination of the different constraints in coastal engineering was performed and an optimization problem was defined. The problem has multiple objectives, and the criteria to be minimized are the structure cost and wave height disturbance inside a harbour. As concluded in this survey, the constraints are predefined parameters, mandatory constraints or optional constraints. All of these constraints are categorized into four categories: environmental, fluid mechanical, structural and manoeuvring.

Prediction of Harbour Resonance by the Finite Difference Approach

  • Lee, Jung-Lyul;Park, Chan-Sung
    • 한국해안해양공학회:학술대회논문집
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    • 한국해안해양공학회 1998년도 정기학술강연회 발표논문 초록집 Annual Meeting of Korean Society of Coastal and Ocean Engineers
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    • pp.124-129
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    • 1998
  • When the strong wind or long wave energy is transferred into the water body of a harbour, the harbour exhibits oscillatory resonant motions which often cause significant damage to moored ships and navigation hazards. Therefore, a number of theoretical and numerical investigations of such resonant oscillations have been carried out but most of them were limited to harbours connected with open sea of constant depth. (omitted)

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중금속으로 오염된 점성토의 동전기영동에 의한 침강 거동에 관한 연구 (Electrophoretic Particle Movement in Suspension Considering the Gravitational Settling and Sedimentation of Clayey Soil)

  • 이명호
    • 한국지하수토양환경학회지:지하수토양환경
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    • 제12권3호
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    • pp.44-52
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    • 2007
  • 다공질매체를 통한 미세 입자의 이동은 고함수비 오염준설토의 탈수 및 오염물질의 제거와 같은 지반의 안정화 처리 및 토양의 정화에 있어서 중요한 메커니즘이 되고 있다. 일반적으로 음전하를 갖는 미세 입자들은 동전기영동의 영향으로 양극(+)방향으로 이동하게 된다. 그러나 중금속과 같은 양전하를 띈 오염물질로 흡착된 미세 입자의 경우 중금속의 종류 및 오염도에 따라 동전기영동에 의한 움직임은 제약을 받을 수 있다. 본 연구에서는 자연상태의 미세토립자의 침강거동 및 직류전류의 영향 하에서 발생되는 동전기영동에 의한 침강 거동에 대하여 조사하였다.

크루즈관광산업 활성화를 위한 관광경쟁력 제고방안 연구 - 방한 크루즈관광객의 어권별 관광만족도의 차이를 중심으로 - (A study on how to improve tourism competitiveness for the activation of cruise tourism industry - Focusing on the influence of attribute satisfaction on overall satisfaction of cruise tourists by countries -)

  • 홍장원;정병옥
    • 한국항해항만학회지
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    • 제37권2호
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    • pp.211-219
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    • 2013
  • 본 연구는 동북아 크루즈관광시장의 성장에 따라 최근 급증하고 있는 국내 기항 크루즈상품 이용자의 관광만족도 분석을 통하여 국내 크루즈항만도시의 관광경쟁력 제고방안을 마련하는데 그 목적이 있다. 이를 위해 본 연구에서는 2012년 크루즈관광객 실태조사 결과를 토대로 방한 크루즈관광객을 중국어권, 일어권, 영어권으로 구분하여 관광만족도에 영향을 미치는 요인을 분석하였다. 연구결과, 각 언어권별로 관광지 일정, 출입국 절차, 교통, 쇼핑 등에서 관광만족도에 차이가 있는 것으로 나타나 향후 크루즈 항만도시별 마케팅 전략 수립에도 이러한 특성의 반영이 필요한 것으로 분석되었다. 본 연구의 결과는 크루즈 관광객 유치증진 및 크루즈항만 활성화를 위한 관광마케팅 전략 수립과 더불어 크루즈관광산업 육성정책 마련에 유용한 정보를 제공한다는 측면에서 큰 의의가 있다.

목포 연안해역의 해수, 퇴적물 및 해조류에 축적된 중금속 함량 (The Concentrations of Heavy Metals in the Seawater, Sediment and Seaweed in Mokpo Coastal Region, Southwestern Coast of Korea)

  • 박찬선;위미영;황은경
    • 환경생물
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    • 제26권4호
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    • pp.303-310
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    • 2008
  • Heavy metal concentration of Fe, Zn, Cu, Cd and Pb were analysed from seaweeds (Ulva pertusa, Sargassum thunbergii, Caulacanthus okamurae), sediments and seawater at the two experimental sites of Daebul and Sabjin industrial complex in Mokpo coastal area with a control site (Heugsando). Highest values of heavy metals were found at two experimental sites influencing by various pollution sources such as industrial drains, sewage and harbours. In contrast, the lowest concentrations was observed at the control site without any pollution source. The concentration levels of accumulated heavy metals were in the following order: seaweeds > sediments > seawater. Similar spatial distribution patterns were observed at the seaweeds, sediments and seawater for the highest mean values of the different heavy metals. This result show that seaweeds could be used as a biomonitors of heavy metals at coastal region.

해빈변형모형을 이용한 항내매몰예측 (Prediction of Harbor Siltations Using a Numerical Model for Sea Bottom Configuration)

  • 김규한;백승화;편종근
    • 한국해안해양공학회지
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    • 제9권4호
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    • pp.201-207
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    • 1997
  • 우리나라 동해안 대부분의 중소어항에서는 항내 및 항입구부의 매몰현상이 심각하여 항내수심을 유지하기 위해 거의 매년 준설을 실시하고 있으며, 항내매몰로 인해 수심이 낮아져 배가 전복되는 등 극심한 피해를 입고있어 적지 않은 사회문제로 까지 확대되고 있는 실정이다. 본 연구에서는 매몰현상이 비교적 심각한 동해안의 K항를 선정 하여 항내매몰에 관한, 현지관측 및 수치모형실험을 실시하였고, 실시 결과 현지상황과 잘 일치 되는 흐름상황 및 매몰현상이 발생하였음을 알 수 있었다.

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