• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2000.11a
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• pp.124-128
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• 2000

The high Tc phase disappeared and low Tc phase increased in the substitution of transistion elements for Bi ions. The high Tc phase decreased in the substitution of Si and Sn for Bi ions. The high Tc phase increased in the substitution of Sb, As and P Which Were the same group of Bi for Bi ions. The substitution of P ions was the most effective and then the high Tc phase was formed in large quantity by replacing Bi ions with 30%of P ions.

• Journal of the Korean Institute of Navigation
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• v.6 no.1
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• pp.19-39
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• 1982

There may be a lor of studies on the economic design of ship for the most favorable combination of design basis on the owner's request. However, there are few on the economical ship's size and speed for the ship owner's stand point. This paper describes on the optimal ship's size and speed to the given marine commercial environments for the owner's requirement to the shipyard. As the result of the paper, the criterion curve of bulk carrier will also be used to assess existing ships for their profitability.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 1995.11a
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• pp.11-14
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• 1995

The question of recruitment qualification and standardization of VTS operators is reviewed through comparison with Air Traffic Control(ATC) The comparison reveals greater difference between the two services than commonality. While ATC enjoys a high degree of uniformity nationally and internationally the provision of VIS is dictated by varying local needs. The variety of those needs makes standardization of VTS operation a questionable short term objective. The paper concludes problem solving techniques such as the formal appreciation provide means of matching recruitment and qualification to local requriements.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.1
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• pp.407-410
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• 2006

There are many problems which takes long time and lots of work to monitor land subsidence by traditional method. These problems can be solved by GPS. Combining with the field example, this paper studies the application of GPS to monitoring land subsidence, analyses the advantages and errors of GPS survey method, and puts forth the suitable conditions of monitoring land subsidence by GPS.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.06a
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• pp.233-235
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• 2013

Women represent only 1 and 2 percent of the 1.25million maritime officers in the world. Despite the slight increase of female maritime officers, there are few studies concerning them indicating that there has been insufficient progress especially on merchant ships. This study refers to the data from carried out 173 female students in Korea Maritime University and suggests the strategy of vitalization for female maritime officers using AHP and SWOT analysis.

• Proceedings of the Korea Society of Design Studies Conference
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• 1999.10a
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• pp.26-27
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• 1999

주행 중이거나 정지한 차량의 위치를 파악하고 주행방향과 속도를 알아내는 차량항법장치 기술을 이용하는 차량용 항법장치의 기능에는 목적지까지 이르는 경로안내 주요 지형 지물에 관한 정보 제공, 현재 교통에 관한 정보 제공, 현재 차량의 위치 파악, 제반 여행 정보를 알려주는 여행 정보 제공, 기타 통신 기능 정보등을 지원한다.(중략)

• Journal of the Korean Institute of Navigation
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• v.24 no.4
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• pp.255-267
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• 2000

This paper aims to compare tax systems related to shipping companies among German, Norway, the Netherlands, UK and Korea and to identify which country has the most competitive edge in terms of tax burdens. The previous studies of international comparison of shipping competitiveness have been simply concerned with the international comparison of nominal tax rates of some foreign countries with Korea. One of their shortcomings have not fully considered tax systems inherent in the shipping industry, which may produce different conclusions. Having home it in mind, this study has tried to calculate effective tax rates among countries concerned, taking fully into account tax systems of the countries.

• Journal of the Korea Society for Simulation
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• v.18 no.4
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• pp.9-20
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• 2009

Navigation system providing route-guidance and traffic information is one of the most widely used driver-support system these days. Most of the navigation system is based on the 2D map paradigm so the information is ed and encoded from the real world. As a result it imposes a cognitive burden to the driver to interpret and translate the ed information to real world information. As a new concept of navigation system, augmented-reality navigation system (AR navigation) is suggested recently. It provides navigational guidance by imposing graphical information on real image captured by camera mounted on a vehicle in real-time. The ultimate goal of navigation system is to assist the driving task with least driving workload whether it is based on the abstracted graphic paradigm or realistic image paradigm. In this paper, we describe the comparative studies on how map navigation and AR navigation affect for driving tasks by experimental research. From the result of this research we obtained a basic knowledge about the two paradigms of navigation systems. On the basis of this knowledge, we are going to find the optimal design of navigation system supporting driving task most effectively, by analyzing characteristics of driving tasks and navigational information from the human-vehicle interface point of view.

• Journal of the Korean Institute of Navigation
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• v.24 no.5
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• pp.385-395
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• 2000

In the transportation literature, many useful decision making models for ship routing and ship scheduling have been studied. But the majority of these studies are on industrial carriers, bulk carriers, or tankers. It is quite recent that a few optimization models have been developed for liner fleet routing and scheduling problems. However there have been few academic studies on decision making models for the routing or scheduling problems of passenger ships in spite of their economic importance in the entire shipping industry. The purpose of this study is to develop analytic decision making models for ship routing and scheduling for the passenger ship fleet. This study gives two optimization models, one is a linear programming model and the other a goal programming model. These two models are solved easy by commercial linear programming softwares and suggest optimal ship routing plans and many other useful implications for passenger ship fleet managers.

• Journal of the Korean Institute of Navigation
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• v.22 no.1
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• pp.91-106
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• 1998

Traditionally, in the education for the trainees of marine officier, the emphasis is laid on the practical training on board to prepare them for the future position on board and to fit them for the shipboard life. Though the education has been carried out in various ways according to each country's social tradition, culture and educational system, in these days it is done normally by the combined way of school education and training on board to get the competence for the marine officer. Thus the shipboard training course is compulsively required to the candidates for certification as merchant marine officers by the IMO STCW convention 1978 and also it is believed that the education for the dacet officers is to be completed through the shipboard training. In spite of the various earlier studies to improve the training education system, there are few studies for the matters and problems form the standing point of cadet.