• Journal of Navigation and Port Research
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• v.32 no.8
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• pp.685-692
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• 2008

The goal of this paper is to set the research and development (R&D) strategic plan of Honam Sea Grant (HSG) program which is to secure the base technologies for the success of Jeollanamdo's policy projects in the area of maritime and fisheries. HSG's mission is to support science-based sustainable management, conservation and enhancement of Honam coastal and aquatic resources through research, extension and education. Firstly, 80 cases of Jeollanam-do's policy project and 48 cases of HSG's R&D project are compiled and classified into the five areas of maritime and fisheries. Secondly, typical key words are extracted from each five areas and assessed the inherent meanings of each key words using quarterly segmented meaning allocation techniques with 'intended for practical use', 'intended for theoretical use', 'intended for future', and 'intended for current'. Then, we proposed R&D strategic plan based on the evaluation results and, it's practical use is also discussed.

• Journal of Korea Port Economic Association
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• v.35 no.4
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• pp.31-50
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• 2019

The retail industry has been coping with changes in the retail market environment for the past decade or so. Using a total of 14 companies, this study aims to reveal the effect of differences in sales channels and retail business styles on the management performance of retail companies. The financial statements of these companies were used to analyze the five key indicators of their management performance. As research variables, sales channels, retail business style and business period were used as factors affecting their management performance. ANOVA or MANOVA was performed to test differences in management performance between groups according to the number of factors. The effect of three factors on the management performance of retail companies was found to be significant. The multi-comparison test revealed significant differences among retail business styles in terms of the five key indicators. TV home-shopping performed better than others in terms of stability and profitability. Internet and mobile shopping companies performed poorly in terms of profitability compared to others and performed higher than department stores in terms of growth, activity, and productivity.

• Journal of Korean Port Research
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• v.7 no.1
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• pp.43-58
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• 1993

There has been fast progress in economy in Korea derived by a consecutive five-year plan program for economic development started in the early 1960's. In the field of transportation, rapid changes in the technological environment of transportation and communication have brought a revolution of the transport system, of which inter-modal transportation through containerisation is typical. Because of the rapidly growing traffic volumes of cargo, especially container traffic, and lack of investment into transport infrastructure in the past, both road and railway are beyond their capacity. As a result, the public-road network has suffered a serious congestion problem. For instance, in relation to the corridor between Seoul and Pusan, today, it takes about 14 hours for the journey of container trailer through Kyongbu Expressway, for which it used to take only 7 hours in 1986. For the railway, though the congestion problem is not very serious compared with the road sector, a shortage of capacity on certain main lines has emerged as a problem as railway traffic has increased. Furthermore, the further expansion of the system in near future is difficult due to burden of higher construction the cost. Unlike these two modes, coastal shipping, which has been paid relatively less attention for commodity transport in Korea, shows no constraint in this respect. In addition, it is the most cost efficient mode of transport. This work therefore aims to make a proposal for the alternative inland transportation mode, which is to promote the coastal transport of container. Three obstructing factors for the promotion of the coastal transport are investigated and some solutions for those are suggested as follows : First, it appears to be essential to provide exclusive ports for the coastal shipping, that comply with simplification, specialization and rationalization. The optimum size of berths on the exclusive ports in Pusan port is estimated as 16-20. We found that it needs periodical study and publicity on the advantages from the adoption of the coastal mode. Inducing competition in the coastal shipping market is also necessary. For the supply of the fleet in the coastal shipping, chartering of the surplus ships in the oversea shipping is found to be more desirable than new shipbuilding. Second, to solve the fragmentation of the companies which wish to participate in the coastal transport, government has to implement the subsidy policy. The encouragement of participation of the shipping lines engaging in Korea-Japan run and Korea-East South Asia run, into coastal shipping also needs to be considered cautiously. Third, simplification of the document for entry in ports is needed for rational coastal shipping management. We can use B/L (Bill of Lading) for coastal shipping as a prerequisite to get the indemnity by P & I Club. The reduction of the government controls on entering and leaving the ports also needs.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2001.10a
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• pp.177-186
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• 2001

Based upon the previous experiences and typical oases of typhoon evasion fur ships as well as tile achievement in scientific research in this detrain, we developed the Intelligent Typhoon Evasion System for Ships. It consists of five subsystems, including electronic charts, ship movement management, typhoon information query and automatic plotting, real-time calculation of ship-typhoon situation, intelligent typhoon evasion decision making. With the synthetical application of analogy theory, synoptic chart, satellite cloud picture analysis, typhoon digital forecast and other relevant technologies, we leave established the typhoon evasion data bases. model bases and knowledge bases, which make it possible to automatically track the ships and typhoon paths. The system can realize ship-typhoon situation analysis, risk levee assessment, typhoon paths correction and course synoptic forecast, and intelligent typhoon evasion decision making.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.5-6
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• 2012

This study's leading tourist destination in Busan Haeundae, Gwangalli, APEC Naru Park, including seven regional surveys conducted by selecting a feel for the waterfront area was investigated. As a result, only 66% of Haeundae, "the sea" seem, a 77.6 percent Gwangalli a "sea looks", APEC Naru Park, 76 percent of the "sea looks", ${\cdots}{\cdots}$ (amout of) ${\cdots}{\cdots}$.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.07a
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• pp.111-112
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• 2015

IMO established an e-Navigation Strategy Implementation Plan(SIP) in 2014 and they aim to enforce in 2019. Accordingly, korean government also prepared e-Navigation SIP as the Next Maritime Safety Comprehensive Management System in 2015. The main content is to promote R&D by putting 131 billion won over the next five years from 2016 to 2020. On the other hand still in a situation that staying at the conception level of Korean e-Navigation System, by study the architectural design requirements of the Korean e-Navigation system, so we will be able to establish future research directions.

• Journal of Chest Surgery
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• v.43 no.4
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• pp.409-412
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• 2010

We have experienced five cases of atrial septal defect closure under complete port access using the da Vinci system. We used only six 8∼12 mm ports without thoracotomy or sternotomy for operation.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.6 no.3
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• pp.47-52
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• 2007

LMTT (Linear Motor based Transfer Technology), which is a new type transfer system used in the maritime container terminal for the port automation, is driven by PM LSM (Permanent Magnetic Linear Synchronous Motor), and largely consists of a controller, shuttle car, and rail. The shuttle car is divided into the frame part, the driving part, and wheels. Because the shuttle car is supported by four wheels in opposition to have five times length for the width of it, a larger deflection than other transfer system using the linear motor occurs. This deflection changes the gap between the mover and the stator, and then brings on an ununiform thrust force. So in this study, we dealt with the structural design for the mover of the shuttle car to generate the uniform thrust force for the efficient control of it. For the investigation, the thickness for each beam of the mover was adopted as design variables, the weight of the mover as objective function, and stress and deflection of the mover as constraint condition.

• Journal of Navigation and Port Research
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• v.35 no.8
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• pp.649-656
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• 2011

Marina industry is growing as a higher value-added business. This study aims to develop a tool that measures marina service quality from marina users' perspective. As the result of empirical analysis, five of marina service quality aspects including physical facilities, support services, activity programs, employees' attitude, and safety were drawn. In addition, 20 measurement items whose reliability and validity were verified were suggested. The scale developed by this study is not only an important tool to measure marina service quality but also contributes to marina service quality control, and seem, to provide useful information for establishing marketing strategies.

• Journal of Navigation and Port Research
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• v.36 no.9
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• pp.707-714
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• 2012

Recently, tug boats are widely used for towing a barge which transports building materials, a large block of a ship, offshore crane, and so on. In order to simulate the dynamics of the coupled towing system correctly, the dynamics of the towline should be well modeled. In this paper, the towline was modeled as the multiple finite elements, and each element was assumed as a rigid cylinder which moves in five degrees of freedom except roll. The external tension and its moment acting on each element of the towline were modeled depending on the position vector's direction. Tugboat's motion was simulated in six degrees of freedom where wave and current effects were included, and towed barge was assumed to move in the horizontal plane only. In order to confirm the mathematical models of the coupled towing systems, standard maneuvering trials such as course changing maneuver, turning circle test and zig-zag test were simulated. In addition, the same trials were simulated when the external disturbances like wave and current exist. As the result, it is supposed that the results might be qualitatively reasonable.