• Journal of Navigation and Port Research
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• v.34 no.3
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• pp.221-228
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• 2010

As container traffic is increasing, the introduction of mega-vessel has had a significant impact on the ports and terminals business. This movement of container shipping has led to intensely competitive environment among ports, so substantial pressures to develop new container ports or to expand existing ones, have been grown. However, it requires a huge investment, especially cost and time, to overcome environmental, geographical and financial restrictions generated from developing a port. This study addressed the Mobile Harbor, the new concept of marine logistics system as an alternative strategy. We performed an economic analysis on the introduction of the Mobile Harbor in coastal transport sector and also a sensitivity analysis to examine the effects of changing factors related on the economic evaluation. We have examined the value and application of Mobile Harbor as a preliminary study, which may contribute to further studies on the Mobile Harbor.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.29 no.8
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• pp.419-428
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• 2017

In this study, energy loss due to ventilation load in the dock system was analyzed through simulation. Also, flow generated in the dock system of the warehouse was measured using manufactured measuring devices. Numerical simulation was conducted by simulating the most common picking tasks by examining the actual working environment. Incompressible and unsteady turbulent flows were assumed, and the turbulence model was the k-e standard model. Proper grid was selected through grid dependency test. Measurement was conducted using Honeywell and Vaisala sensors, and flow and temperature inside the warehouse were measured and compared with simulation results to validate simulation. When comparing amount of loss occurring in two hours and amount of loss occurring in 15 minutes, docking time of the former was eight times longer but energy loss was 3.8 times lower. Ventilation load occurring during the initial period after opening docking system accounted for a large proportion of total ventilation load. Also, comparing the load when the dock was closed and the load when the truck was parked, ventilation load was significantly higher than load due to heat conduction from the wall. Therefore, in improving the docking system, it is effective to reduce the gap by improving compatibility of the docking system and truck, rather than wall material.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.1
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• pp.269-274
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• 2006

It was decided by national vote in Panama to expand the Panama canal. Therefore 12,000TEU sized vessel can pass the canal from 2014. The Far East-North America shipping route, over than post panamax size vessels have to use other routes such as Miniland bridge instead of using the panama canal due to limitation of canal size. Therefore, some changes in the transport route in Far East-North America are expected due to expansion of Panama canal. The objective of this paper is to analyze the transport cost between Far East and North America then compare the competition between Panama canal route and land bridge route.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.1
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• pp.275-279
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• 2006

Since the North port in Busan started to operate in general pier (1, 2, central, 3 and 4), the business area had been expanded to Jasungdae, Shinsundae, Gamman zone and so on. However, these zones adjoin the Busan city and have caused problems to both logistics and city activities. The operation of Off-Dock Container Yard (ODCY) is a good representative example due to the limited sphere of Container Yard in this city. It increases logistics costs and causes serious social problems as a result of increasing traffic in the truck roads such as Uam and Chungjang roads. This paper aims to analyze the effects of the reduction in traffic of trunk roads in Chungjan, Uam roads and so on, when General Pier and Jasungdae Pier are Re-developed. The effects of the reduction in social cost from traffic congestion are also analyzed. Finally, we predict and evaluate the effects according to the re-development of two piers, north pier and Jasungdae pier.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2005.10a
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• pp.263-268
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• 2005

Nowadays, the vessel size is tending to be bigger and bigger, so port facilities are following this trend, which has been shown inthe competition of Hub-Port among the main ports such as Port of Busan and Port of Shanghai. But there are limited numbers of large container vessels and $70\%$ of the call ships at Busan port are middle and small sized ships which are less than 20,000ton. So we need to consider the handling facilities for these sized ships, but it has disregarded. In this paper, we estimate the optimum level of crane and labor according to vessel's size by container handling cost value reflecting size of vessel; size and number of crane and labor structure.

• Journal of Navigation and Port Research
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• v.31 no.1 s.117
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• pp.7-14
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• 2007

Recently, freight floe between south and north Korea is rising rapidly by increasing cf economical exchange between two Korea and growth of Gaeseoung Industrial Complex. Considering this trend of economic cooperation between two Korea, in addition to a land transportation route it is necessary to secure various logistics and transportation route. A barge transport system which has many merits such as a little initial investment and convenience of harbor loading/unloading has been also used to transport freight widely in the EU and USA. In this paper, firstly, a Gaeseoung industrial complex and its cargo transport are investigated and several candidate shipping routes which are using barge transportation system are proposed. And also we investigate a technical feasibility on a realistic possibility of shipping routes by some investigation activities. Finally, a suitable barge system of candidate shipping route(1) and(2) is proposed in this paper.

• Journal of Navigation and Port Research
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• v.31 no.1 s.117
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• pp.81-87
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• 2007

It was decided by national vote in Panama to expand the Panama canal. Therefore 12,000TEU sized vessel can pass the canal from 2014. The Far East-North America shipping route, over than post panamax size vessels have to use other routes such as Mini land bridge instead of using the panama canal due to limitation of canal size. Therefore, some changes in the transport route in Far East-North America are expected duo to expansion of Panama canal. The objective of this paper is to analyze the transport cost between Far East and North America then compare the competition between panama canal route and land bridge route.

• Journal of Navigation and Port Research
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• v.34 no.5
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• pp.389-395
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• 2010

Recently, it becomes important for container ports to gain competitiveness through service differentiation strategies. These strategies require an objective evaluation on consumer needs. For that reason, this study aims at developing the scale and measurement methods for service quality. Container shipping companies calling at Busan are targeted for the empirical analyses. The measurement items are presented for the services that they are provided from entry into a port to departure from a port. Exploratory factor analysis and validity analysis are done to derive a service quality scale from entry to departure. The result of regression analysis implies that the service quality scale is useful to increase customer satisfaction and to establish managerial strategies.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.11 no.5
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• pp.550-555
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• 2018

This study aims to identify and compare contents and keywords used in articles related to blockchain applications to various industries. The text mining and Semantic Network Analysis, as methods of keyword network analysis, were used to analyze articles including terms of 'finance' 'energy' and 'logistics', which media and government frequently mentioned as areas that can apply blockchain technologies. For this study, data were collected from 43,093 articles from January, 2017 through July, 2018. Data crawling was carried out by using Python BeautifulSoup and data cleaning was performed in order to eliminate mutual redundancies of the three terms. After that, text mining and semantic network analysis were performed using Textom and UCInet for network analysis between keywords. The results showed that all the three terms were similar in terms of 'technology', but there were differences in the contents of 'government policy' or 'industry' issues. In addition, there were differences in frequencies and centralities of these terms.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2006.05a
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• pp.534-537
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• 2006

Currently, The fast development which radio communication technique is creating new services from the industry sector which is various from convenient characteristic and the ease characteristic side. Specially, rise and development of the radio communication technique which is various from environment monitor ring field makes to be improved about sharp curtailment of establishment and logistics relation expense, and collection period of the data which occurs real-time from site, reliability and delivery characteristic. But continuous application and the success about the environment monitor ring field of radio communication technique will be able to trust And It is important to provide time information which is appropriate real-time. So this paper plans the sensor network based on environment measurement watch which applies a radio communication technique.