• 경영과학
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• 제19권1호
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• pp.13-28
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• 2002

This Paper discusses how to estimate the container yard space of a port container terminal as well as how much the Inventory level of containers Is affected by related factors such as allowable dwell time for containers, handling volume per containership, and loading/unloading productivity of a port container terminal. Under the assumption of static relations among the factors, a model for estimating the container yard space is suggested. In terms of arrival patterns of containers, sub-models for export, import, and transshipment containers are constructed separately. A numerical example and the sensitivity analysis for some parameters are provided to help intuitive understanding the characteristics of the suggested model. The experimental results show that the allowable dwell time for containers is the most critical one of the factors to influence on the maximum Inventory level of containers.

• 해양환경안전학회지
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• 제25권3호
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• pp.298-305
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• 2019

The demand for the revitalization of marine tourism in Busan North Port is increasing due to changes in functions such as an increase in harbor traffic volume and the expansion of marine leisure space in Busan. As a result, Busan City plans to set a phased alleviation target for prohibition of cruise ship operations, and to lift the prohibition of excursion ship operations in North Port following the cancellation of the prohibition of excursion ship operations in South Port in 2017. The purpose of this study is to evaluate the risk of excursion ship operations in Busan North Port by applying the marine traffic assessment index and to examine the possibility of excursion ship operations. For this purpose, port status, marine accidents, and traffic flow of Busan North Port were investigated. In addition, marine traffic assessment indexes, such as traffic congestion, risk based on an ES Model, and IWRAP MkII, a maritime risk assessment tool, were used to assess the risk and possibility of excursion ship operations in Busan North Port. This study can be used as basic data for analyzing the risk factors that may occur when excursion ships are operated in Busan North Port and to define how excursion ships should operate, with related safety measures.

• 산업공학
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• 제11권1호
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• pp.97-103
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• 1998

In these days many people have studied on the berthing problem. The operation rules differ from port so port and the problem is highly dependent on the environment of port. The purpose of this study is to develop a decision support system decision makers of the berthing problem for Inchon Port. The system is developed with graphic user interface(GUI) using user-interactive approach and some general and specific rules for Inchon Prot are considered. The system is composed of the following four parts ; the input/output part, the automatic berthing part by the system using rules, the manual berthing part by user, and the part for modifying results or handling exceptional events. The system is designed to assign ship to berths by matching the characteristics with environmental and operational constraints of Inchon Port. We expect that this system can provide decision makers with an efficient and fast way to berthing and can reduce wastes of time, space, and manpower in port operations.

• 한국항해항만학회지
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• 제33권5호
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• pp.331-337
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• 2009

컨테이너 크레인은 컨테이너터미널에서 사용되는 주요 장비면서 컨테이너 크레인의 효율은 컨테이너터미널의 생산성을 결정한다. 컨테이너 크레인의 전형적인 유형은 싱글 트롤리를 가지고 있으며 진보된 유형들 중의 하나가 듀얼 트롤리형이다. 본 논문의 목적은 컨테이너 터미널에서 듀얼 트를리형 컨테이너 크레인의 버퍼 사이즈를 분석하는 것이다. 듀얼 트롤리형 컨테이너 크레인의 버퍼 공간을 분석하기 위한 시뮬레이션 모델을 소개한다. 버퍼 공간은 해측의 메인 트롤리와 야드측의 세컨 트롤리 사이에 위치한다. 요구 생산성을 추정하기 위해 다양한 시뮬레이션 실험을 수행하여 버퍼 사이즈를 분석한다.

• 한국항해항만학회지
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• 제33권3호
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• pp.247-254
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• 2009

본 연구는 부산항의 미항만들기를 위한 기초 연구로서 항만경관을 인식하는 사람을 전문가, 시민, 방문객으로 구분하고 부산항 항만 경관에 대한 각 그룹의 의식을 비교분석하는 실증적 연구이다. 연구내용으로는 부산항 항만경관에 대해 세 그룹이 가지는 의식특성을 알아보고 그룹들 사이에 존재하는 의식차이를 분석하며 항목별로 구체적인 의식 차이점을 살펴봄으로서 그 결과를 바탕으로 부산항 항만경관의 개선 대책을 제시한다. 연구결과 전문가, 시민, 방문객은 부산항 항만경관에 대한 의식에 차이를 나타내고 있으며 특히 전문가그룹은 시민 및 방문객 그룹과 여러 가지 측면에서 의식차이를 보이고 있는 반면에 시민과 방문객그룹 사이에는 의식차이가 분명하게 나타나지 않고 있다. 따라서 향후 항만경관의 개선 및 평가에서는 전문가와 일반인의 의식차이를 고려하여 두 그룹을 구분하고 각각의 견해를 비교분석하여 적절한 의견을 항만경관계획에 반영하는 것이 바람직하다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2010년도 춘계학술대회
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• pp.189-190
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• 2010

바다낚시를 여가활동으로 즐기는 사람들의 수가 증가하고 있지만 해수면 낚시용 수상구조물에 대한 규정이 없어 많은 안전사고를 야기하고 있다. 본 연구에서는 해수면의 환경특성과 낚시특성을 파악하여 해수면에서 플로팅 구조물크기설정, 구조물 구조계획, 상부공간계획, 안전시설계획의 4가지 계획단계를 통해 6인용과 12인용 두 가지 타입의 해수면 낚시용 수상구조물 표준모델을 제시하고자한다.

• Journal of Astronomy and Space Sciences
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• 제27권4호
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• pp.407-412
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• 2010

Software reusability is one of key factors which impacts cost and schedule on a software development project. It is very crucial also in satellite simulator development since there are many commercial simulator models related to satellite and dynamics. If these models can be used in another simulator platform, great deal of confidence and cost/schedule reduction would be achieved. Simulation model portability (SMP) is maintained by European Space Agency and many models compatible with SMP/simulation model interface (SMI) are available. Korea Aerospace Research Institute (KARI) is developing hardware abstraction layer (HAL) supported satellite simulator to verify on-board software of satellite. From above reasons, KARI wants to port these SMI compatible models to the HAL supported satellite simulator. To port these SMI compatible models to the HAL supported satellite simulator, simulation scheduler is preliminary designed according to the SMI standard.

• 한국항만학회지
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• 제12권2호
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• pp.363-372
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• 1998

Oceanic architecture means architectural space created by directly or indirectly using the features of the ocean in the design. A range of marine structure for residential, leisure, cultural, and industrial uses has been and will be created by adopting these features in spatial composition, program, function, and form. This is a clearly distinct category of architecture which can produce unique and creative environments for man's living. Here this kind of architecture is called oceanic architecture. Nowadays the demand for ocean space is increasing and in the near future the law of oceanic architecture will be established by the government. Even with the present trend in design practice, few academic researches on the new architecture have been executed from an architectural design viewpoint. Accordingly, this study aims to examine the design aspects of oceanic architecture. In this paper firstly the design characteristics and contents of oceanic architecture are dealt. And then the concept architecture is defined on the basis of design characteristics.

• 한국항해항만학회지
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• 제36권2호
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• pp.89-95
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• 2012

Identification of the modal properties of a structural system has received much attention over the years because of its importance in structural model updating, structural health monitoring and structural control. This paper presents experimental modal test results such as natural frequencies and mode shapes of a scale model of floating structure. A modal testing is performed on the structure and modal parameters for the structure are extracted from the measured data. The results are compared to a finite element model and the correlation between the measured and analytical modal parameters is investigated.

• 한국항해학회지
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• 제18권2호
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• pp.91-109
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• 1994

Technological and organisational changes in transport system have introduced new dimension into port system development and inter-port competition. The quality of service now required by the customer is costly and not easily provided by small shipping companies and small ports. It has been suggested that in the future container shipping may be concentrated by space-sharing arrangements or actual mergers into the hands of a few mega-operators with the investment potential to provide total logistics networks. In order to compete effectively, high load factors will be essential and port concentration inevitable. A fa-voured few ports will become the load centres and other ports will assume a secondary feeder role. In this study, three questions are raised and attempts are made to answer them : (a) what is the new role of ports today ; (b) why should ports be engaged in this new role ; and (c) how can ports play this new role. In short, a modern port should be a service centre and a logistic platform for international trade and transport-a third generation port. Ports, in particular, have to make every effort to be competitive in the cost and quality of services and to make the port a transport and distribution service centre. For most ports, this is not an option but a must ; an essential requirement for survival in this win or lose situation. The best way to win is to maintain a close contact with port users, listen to them, discuss with them, help them and satisfy them. That is port marketing. Starting from the findings of port marketing, it is es-sential to work out appropriate development plans and marketing targets and to improve port competitive-ness. As an alternative method, a port competitiveness model is suggested, which may help port managers to make appropriate improvements.