• 제목/요약/키워드: Sea accident

검색결과 294건 처리시간 0.027초

우리나라의 해상통신의 발전방향에 관한 연구 (A Study on the Development Direction in Korea Marine Communication)

  • 신현식
    • 한국전자통신학회논문지
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    • 제3권3호
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    • pp.143-152
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    • 2008
  • 이 논문은 우리 나라의 해상 사고가 매년 600~700건씩 발생되어 많은 인명과 재산피해가 나타나고 있다. 그러므로 해난 재해시 선박 통신의 역할은 많은 인명과 재산피해를 가져오는 원인을 제거하는 것이라 생각하고 국가적인 차원에서 연구하였다.

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Human Error 가 주된 원인의 하나가 되었던 몇가지 대형 해난사고 사례의 분석 (The Case Study of Several Great Sea Disasters due to Human Error)

  • 윤점동;권종호;서영완;임방남;김종훈;이동섭
    • 한국항해학회지
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    • 제12권2호
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    • pp.1-22
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    • 1988
  • The transportations of most of cargoes in world trade have been fulfilled through sea lanes and it seems this trend will not change in near future. Nowadays, inview of the technical aspects of merchant vessels, they are continuously enlarged in hull size and greatly specialized in structure for the cargo spaces and dramatically automatized in navigating, piloting, cargo operating and various other operations, which unavoidably require high technicals in operating the modern merchant vessels. On the contrary to the trend of requiring of operating high technicals, the capabilities of crew on board have been gradually declining in technical competence and their morale for accomplishing their duties on board vessels has greatly falled won compared with that of old days. The above result inevitably brings many problems in operating modern vessels and causes accidents which are avoidable through good competence and high morale of the crew. We intend to analyze the causes of several great sea accident with which it seems some human errors are connected more or less directly or indirectly. We hope that this study could suggest some measures which help to prevent the recurrence of similar accidents by Korean ship's crews.

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Investigation on electrochemical performance of Al anode material for marine growth prevention system

  • Kim, Seong-Jong;Jang, Seok-Ki;Han, Min-Su;Lee, Seung-Jun
    • Journal of Advanced Marine Engineering and Technology
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    • 제38권8호
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    • pp.968-973
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    • 2014
  • Aluminum anode of marine growth prevention system for ship is installed in seachest or sea water strainer. The Al anode is connected to a control panel that feeds a current to the anode. The dissolved ions produced by the anode are transferred in sea water, spreads through the sea water pipe system and creates a protective film in the pipelines. Thereby, corrosion in pipeline system significantly is reduced. In application on condition as a steel ship, the big accident can be caused by the corrosion. Accordingly, in this research, we evaluated influence of applied current and flow velocity on electrochemical characteristics of Al anode for marine growth prevention system (MGPS). Based on the results of the erosion-cavitation experiments, cavitation rate increased greatly until 120 min. of the experimental time and decreased a little at the point of 180 min. where pit grew and merging occurred but showed a tendency of steadily increasing consumption rates. Based on the results of the Tafel analysis, compared to static states, corrosion current densities show a rapidly increasing tendency when flow occurred.

남해안 주요항만 접근해역의 위험도 분석에 관한 연구 (A Study on Danger Degree Analysis for the Adjacent Waterway of Main Ports in the Korean Southern Area)

  • 박영수;김경태
    • 해양환경안전학회지
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    • 제14권1호
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    • pp.71-76
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    • 2008
  • 남해안은 우리나라 전체 항만의 입항척수의 58.1%출 차지하며, 위험화물 운반선의 척수를 기준으로 할 경우 68.9%를 차지하여 통항위험에 노출되어 있다. 따가서 남해안 주요항만에 입출항하는 선박의 교통량과 흐름을 조사하여 교통환경스트레스 모델을 적용하여 해역별 위험도를 평가하고, 위험도와 해양사고 및 입출항 척수와의 관계 분석을 통해 주요항만의 문제점과 해결책을 마련할 기초자료를 제시하고자 한다.

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해양관측용 부이의 설계 건전성 평가 - Part I: 실해역 조건 하의 부이 선체 구조건전성 평가 (Design of Oceanography Buoy - Part I: Structural Integrity of Hull)

  • 김태우;금동민;한대석;이원부;이제명
    • 한국해양공학회지
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    • 제23권1호
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    • pp.81-88
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    • 2009
  • An evaluation of the structural integrity of an oceanographic buoy subjected to extreme loads was carried out in this study. Load components, such as the current, waves, and wind load, which were required for the sea's environmental conditions, were calculated precisely. A non linear finite element analysis was conducted to elucidate the structural response of the buoy under extreme environmental conditions. Based on the surface drift velocity scheme, a dynamic impact analysis was also carried out for the case of collision accidents. The proposed numerical technique would be a useful and cost effective tool for design scheme evaluation in the field of oceanographic buoys.

요추 추나 치료가 교통사고 환자의 초기 HRV, VAS 변화에 미치는 영향 (Effect of Chuna Treatment(Manipulation) on Lumbar Sprain caused by Traffic Accident in Early Stage. - by Analysis of the Heart Rate Variability(HRV) and Visual Analogue Scale(VAS) -)

  • 이정민;박지현;이은정;전태동;홍서영
    • 척추신경추나의학회지
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    • 제4권2호
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    • pp.61-74
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    • 2009
  • Objectives : The purpose of this study was to investigate the effect of chuna treatment(manipulation) on lumbar sprain caused by traffic accident in early stage, by analysis of the Heart Rate Variability(HRV) and Visual Analogue Scale(VAS). Methods : This study carried out on 20 patients who have received hospital treatment in Daejeon Univ. cheonan Oriental Hospital. Non-chuna group got acupuncture-therapy, herbal medication, physical therapy and Chuna group got all the therapies and chuna treatment. We measured HRV and VAS on 2nd, 4th day. Results : After being treated by our methods, Chuna group showed the inclination to balance between the sympathetic and parasympathetic nerve. In chuna group as compared with non-chuna group, an autonomic nerve activity and stress resistance showed the inclination to increase(p<0.05). And chuna treatment reduced the rate of stress increase. Conclusions : The results suggest that chuna treatment help traffic accident patients in early stage to reduce pain. Refer to autonomic nerve system, chuna treatment seem to do positive effect but Further long term study in a large scale is needed.

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안강망어선에서 조업하는 선원의 위험도 평가 (Risk evaluation of fisher's safety on stow net fishing vessel)

  • 현윤기;김형석;이유원
    • 수산해양기술연구
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    • 제56권2호
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    • pp.138-146
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    • 2020
  • Stow net fishery is one of the fishery with high fishing work accidents in southwestern sea of Korea. We conducted to serve as basic data for improving the healthy and safe working environment of fisher using risk assessment process (ISO45001) with fishermen's occupational accidents of the National Federation of Fisheries Cooperative (NFFC) from 2016 to 2018. The average occurrence rate of victim in this fishery was 9.04%, 16.7 times more than such rate in all industries. In addition, the average fatality rate was found to have a very serious level management to 31.06‱, 27.7 times more than such rate in all industries. The safety hazards of stow net fishery was more likely to occur by other general industrial groups, with more severe consequences after the accident. According to 4M analysis, 58.6% of all accidents were caused by human factors, 24.0% by environmental factors, 16.0% by mechanical factors, and 1.5% by managerial factors, respectively. The occurrence frequency by accident type was the highest in 187 cases (32.2%) for struck by object, 158 cases (27.2%) for slipping, and 94 cases (16.2%) for being in contact with machinery. Severity is the highest for others such as diseases etc., in the order of being struck by object, being in contact with machinery, falling from above slipping, collapsing, bumping, and burning. Being struck by object, being in contact with machinery, and slipping are high-risk groups, falling from above others, bumping, and burning are medium-risk groups based on the risk assessment using the occurrence frequency and severity of accident. The obtained results are expected to contribute to the safe operation environment subsidy for fishing crews on the stow net fishing vessel.

해양사고에 있어서 책임귀속의 제한 필요성에 관한 연구 (A Study on the Necessity of Limitation for Legal Liability in Marine Accidents)

  • 지상원
    • 한국항해항만학회지
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    • 제34권3호
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    • pp.251-255
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    • 2010
  • 해양사고는 민사법상의 손해배상, 형법상의 책임의 귀속 및 행정상의 제재와 같은 여러 가지 법적 책임 문제를 야기한다. 어떠한 행위에 의하여 결과가 발생하였다고 하여 바로 책임귀속이 되는 것은 아니다. 이러한 책임의 전제로서 해양사고를 야기한 행위와 그 결과 발생사이에 인과관계가 문제된다. 해양사고에 있어서 그 원인 규명은 해양이라는 사고 발생 장소, 증거확보의 어려움, 사고 발생시와 조사 시점과의 시간차 등으로 어려움이 많다. 그러나 정확한 원인 규명은 유사 사고 방지와 책임 소재를 가리는데 매우 중요한 요소이다. 인과관계를 논리학적으로 보면 무한히 확산 가능한 개념이지만 책임귀속에 있어서는 이를 제한할 필요성이 있다. 따라서 이 논문에서는 인과관계 이론을 바탕으로 해양사고에서의 인과관계를 검토하여 책임귀속의 합리적인 판단 기준을 논증한 것이다.

해양사고 신속대응을 위한 k-평균 군집화 기반 경비함정 최적배치 (Optimal Arrangement of Patrol Ships based on k-Means Clustering for Quick Response of Marine Accidents)

  • 유상록;정초영
    • 해양환경안전학회지
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    • 제23권7호
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    • pp.775-782
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    • 2017
  • 현 경비 함정의 위치는 해양사고 위치와의 접근성이 떨어져 있어 합리적이고 과학적인 기준이 아닌 주관적인 판단으로 배치되어 있다. 이에 본 연구에서는 과거 해양사고 데이터를 기반으로 정량적으로 최적의 경비 함정 배치 위치를 도출하고자 한다. 연구 해역은 포항 연안을 대상으로 하였다. 본 연구에서는 k-평균 군집화 알고리즘으로 경비 함정의 배치 위치를 도출한 후, 보로노이 다이어그램으로 각 경비 함정 간 경비 구역을 구획하였다. 연구 결과, 해양사고 1건당 경비 함정의 평균 항해 거리는 4.4해리, 평균 도착 시간은 13.2분이 개선될 수 있었다. 경비 함정을 유동적으로 배치 수를 달리해야 할 경우 본 연구에서 적용한 기법을 활용하여 최적 배치가 가능하며, 신속한 구조 지원 체계가 더욱 확보될 것으로 판단된다.