• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2009년도 춘계학술대회 논문집
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• pp.155-156
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• 2009

• 대한안전경영과학회지
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• 제7권2호
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• pp.13-27
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• 2005

Many countries of the world is driving forward development of large-scale hub port. They are now pushing ahead with setting up of effective marketing strategies to survive in keen competitions of the 21st century port industry. The port is of ever increasing importance for the bridge connecting sea and road transportation in handling international cargoes. The port, differently from general working places, is a closed area required for security, customs, and quarantine procedures. The loading and unloading is being done differently by ports, cargoes, and ships. To do loading and unloading, a lot of equipment and different types of labor are required, which flow is complicated and safe management is essential. As above mentioned the port is very unique and very deteriorated working place in its working environment. The purpose of this study is to propose ways to reduce and prevent from port accidents. As first step to do this, we have collected 923 accidents happened at Incheon Port during the period of 1994 to 2003. We have thoroughly analyzed characteristics, harmfulness, and risk of the loading/unloading they have done, as well as the accident frequency and relationship between the accidents. As second step to further analyze, We have employed DMAIC technology, an advanced process of 6 sigma presently in spotlight as the best program for management innovation. This analysis results in recognition of important accident characteristics, causes and effects analysis, critical causes of accident, and suggestions to decrease accidents.

• 한국항해학회지
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• 제14권4호
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• pp.1-15
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• 1990

With increasing ship's speed turnround and port time becomes a large percentage of total roundtrip time and this causes to accelerate the introduction of the various kind of modern handling equipment, the standardization of cargoes, and the improvement of the ship. However, it is still a drag on efficient operation of ship. Similarly, the turnround time at the container port is very important as a measure for the decision of the efficiency of port. To decrease operating coasts, the minimization of the time need to cargo handling at the ports of call must be achieved. Thus the optimization of the time need to cargo handling at the ports of call must be achieved. Thus the optimized Container Loading Plan is necessary, especially under the rapid speed of container operations. For the container loading plan, in this thesis, we use the hungarian method and the branch and bound method to get the initial disposition of both maximization of ship's GM and minimization of shift number to the obstructive container in a yard area. We apply the dynamic programming algorithm to get the final disposition for minimizing total turnroudn time and finally we analyzed the results to check whether the initial disposition is proper or not.

• 한국해양환경ㆍ에너지학회지
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• 제4권4호
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• pp.61-69
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• 2001

최근 들어, 컴퓨터와 전자장비의 기술 발전에 힘입어 대부분의 유조선에서도 자동 적ㆍ양하 시스템 장비들이 도입되고 있다. 그러나 과도한 자동화에 따른 기기 조작이 복잡해짐에 따라 사감의 조작 실수에 따른 사고의 가능성이 논아지고 있는 것이 사실이다. 즉, 비록 적ㆍ양하 작업이 전문가들에 조작되지만 전체 작업 과정에서의 인적 오류 가능성을 배제할 수 없으며, 현재 도입되어 있는 시스템들은 오조작에 대한 방지 및 시스템의 이상 상황을 진단하여 대안을 제시할 수 있는 기능을 보유하고 있지 않다. 유류와 관련된 사고는 엄청난 피해를 초래하기 때문에 본 시스템의 개발 목적은 완전 자동화 시스템을 지양하고, 안전을 고려한 시스템 개발을 추구하고 있다. 본 논문에서는 지식기반 모니터링 시스템 개발을 위한 적ㆍ양하 작업 분석과 시스템 작동 가이드 및 시스템의 이상 상환과 작업자의 오조작을 모니터링하여 이에 신속히 대응할 수 있는 시스템 설계에 대해 언급하였다.

• 한국항해항만학회지
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• 제31권5호
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• pp.403-408
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• 2007

본 논문에서는 Jahanshahloo et al (2007)가 새롭게 제시한 모형을 이용하여 2004년도, 국내 26개 항만들을 대상으로 2개의 투입변수(접안능력, 하역능력)와 3개의 산출변수(수출화물처리량, 수입화물처리량, 입출항척수) 가 있는 경우의 CCR[Charnes, Cooper, Rhodes(l978)] 효율성을 측정하였다. 또한 효율성이 1인 효율적인 항만들을 제거하는 방법과 나머지 항만들의 효율성을 평균하는 방법을 이용하여 효율적인 항만들의 정확한 순위를 측정하였다. 실증분석의 핵심적인 결과를 살펴보면, 가장 효율적인 항만의 순위는 옥포, 삼척, 울산, 대산, 부산, 고현항의 순위로 나타났다. 10개의 컨테이너항만을 제외한 16개 일반 항만들 중에서는 삼척항이 가장 강력한 효율적인 항만으로 나타났다. 정책적인 함의는 항만정책당국이 본 논문에서 사용한 분석방법과 더 장기적인 기간을 대상으로 효율성 분석을 시행하고 효율적으로 판명된 항만들에 대해서는 정확한 순위를 파악하고 그러한 결과를 차후 항만투자와 개발 시에 반드시 고려하고 반영해야만 한다는 점이다.

• 한국항해항만학회지
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• 제34권5호
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• pp.311-317
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• 2010

하역장치가 장착된 모바일하버 선박은 새로운 해상운송시스템 개념으로, 특정 정박지에서 대형 컨테이너 선박에 계류하여 해상상태 3 이하 조건에서 신속하면서 효율적인 컨테이너 하역작업을 수행하는 것이다. 모바일하버와 관련한 주요 연구로는 고속하역시스템, 부유체 구조 설계, 안벽하역시스템 해석 및 작업크레인 설계 등의 원천기술 개발을 중심으로 수행되었다. 본 연구는 모바일하버 선박의 하역작업 중 동적안정성 확보를 위한 계류안정화시스템을 개발하고자 하는 것으로, 국내외 계류장치에 대한 현황 분석을 기초로 현재 선박에 탑재되어 있는 의장장치인 윈치시스템에 계류안정화 기능을 추가시킨 포지셔닝윈치를 개발하여 모선과의 상대운동을 최소화하는 방안에 대한 개념설계를 제안한다.

• 한국항만경제학회지
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• 제35권3호
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• pp.93-108
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• 2019

본 연구는 광양항 컨테이너부두의 경쟁력을 높이고 터미널운영사 간 과도한 경쟁을 해결하기 위한 컨테이너 화물유치 및 신규화물을 창출 할 수 있는 방안으로 비표준화 화물의 컨테이너화 방안과 필요성을 제시하는 데 연구의 목적이 있다. 따라서 본 연구에서는 컨테이너화 비율이 낮거나 최근 들어 컨테이너화가 진행되고 있는 14개 품목을 일반화물, 산적화물, 액체화물로 구분하여 컨테이너화 방안 및 필요성을 제시하였다. 일반화물의 경우 일반 컨테이너의 개조나 적재방법을 개선하여 이용률을 높일 필요가 있으며, 산적화물은 우천에 의한 제품 변질 방지, 소량 주문 및 판매 가능, Clean 화물 취급, 물류비 절감 등 컨테이너화 장점을 최대한 활용할 필요가 있다. 그리고 액체화물은 높은 품질과 안전하고 내구성이 강한 Flexitank나 Flexibag을 활용한 소량 주문 및 판매, 운송의 편리성, 시간과 비용 절감 등이 필요하다.

• Asian Journal of Atmospheric Environment
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• 제5권1호
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• pp.41-46
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• 2011

The port of Busan is the fifth busiest container port in the world in terms of total mass of 20-foot equivalent units transported. Yet no attempts have been made to estimate the greenhouse gas (GHG) emissions from the port of Busan by accounting for all port-related activities of the various transportation modes. With these challenges in mind, this study estimates the first activity-based GHG emissions inventory in the port of Busan, which consists of four transportation modes: marine vessels, cargo-handling equipment, heavy-duty trucks, and railroad locomotives. The estimation results based on the most recent and complete port-related activity data are as follows. First, the average annual transportation GHG emission in the port of Busan during the analysis period from 2000 to 2007 was 802 Gg $CO_2$-eq, with a lower value of 773 Gg $CO_2$-eq and an upper value of 813 Gg $CO_2$-eq. Second, the increase in the transportation-related GHG emissions in the port of Busan during the analysis period can be systematically explained by the amount of cargo handled ($R^2$=0.98). Third, about 64% of total GHG emissions in the port of Busan were from marine vessels because more than 40% of all maritime containerized trade flows in the port were transshipment traffic. Fourth, approximately 22% of the total GHG emissions in the port of Busan were from on-road or railroad vehicles, which transport cargo to and from the port of Busan. Finally, the remaining 14% of total GHG emissions were from the cargo handling equipment, such as cranes, yard tractors, and reach stackers.

• 한국항해학회지
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• 제8권1호
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• pp.17-48
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• 1984

The economy of ship's size and speed is affected by the freight rates, sailing distances, cargo handling rates, fuel oil prices and even interest rates of the borrowed funds. It can be a step more powerful measures if the economic evaluation model takes in a cargo lot size which prevails in the shipping markets. This paper has dealt with hypothetical cargo lots which happen to the market with uniform distribution in probability. The evaluation models are either profit maximization method or cost minimization method. The former compares among different voyages in profitability to the invested funds, the later defines the transportation efficiency in ton-mile unit and be used in comparing two or more transportation means. This paper adopted both of above methods to derive out ships economical evaluation contours for the various ship's speed and deadweight for certain cargo lot sizes, which can be used as important managerial decision data in purchasing ships or selecting a most profitable one among the proposed voyages. This evaluation contours will also be efficiently used in appraising so called "handy size ships" in connection with port water depth and conditions of voyage tracks.ge tracks.

• 한국항만학회지
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• 제4권1호
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• pp.45-57
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• 1990

Today, about 95% of totoal import import and export container cargo in Korea is being transported through the Busan Port. The 59% of these cargos is being handled at BCTOC and the rest is at the existing piers. As the Off-Dock Container Yards(ODCY) within Busna City are located at 33 different places, it causes serious problems in the container cargo transport and inland traffic near Busan district. The container carriers to the inland market or other terminals cause heavy traffics to the Busan Traffic System. Hence, this impacts to the cost of the cargo handling equipment and cargo storage, the usage of labor resources, the control of natural environment etc. To solve those problems, it is required to build Inland Container Depot(ICD) in the Southeastern Economic Area. In this study therefore, we try to calculate the required area of Inland Container Depot(ICD) for Busan Port which deals which deals with the container cargo. We also investigate the sites for ICD being suggested outside of Busan City. We use the Analytic Hierarchy Process(AHP) Method to decide the best one. The result shows that the best is the Site B(Dong Myen, Yangsan Kun).