• International Commerce and Information Review
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• v.8 no.2
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• pp.165-183
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• 2006

Sea transport industry is service industry and basic industry that permit efficient division of the human and material resources of industry. Also, owing to geographical situation which korea is having, utilization ratio of sea logistics industry is high than other transport ways. Sea transport industry chieves role that promote economy activity of other industry field as well as offer of transport way. Specially, because unit anger of freight by container is introduced, it was achived reduction of transport unit cost and mechanization of loading and unloading by this result. For efficeint connection of each other transport, contianer had offerd to large ship. Quality of service has much dimensions, and is considered while it is important that understand quality of service of sea transport industry through marketing and research of customer connection field because perceive of quality of serviceis different in shipowner/service viscount or shipper/freight owner. This research presented decision factors of sea transport quality of service which shipper and transport agent recognize under these background.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.3B
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• pp.235-246
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• 2009

The number of industry wireless networks based on IEEE 802.11 WLAN technology deployed in large outdoor work sites, such as freight container terminal, is increasing these days. Wider service coverage, frequent movements of stations and high requirement on service reliability are main characteristics of these networks compared to the conventional IEEE 802.11 networks used in home, office and school. While the importance of these networks Bets higher, we can hardly find previous studies including concrete analysis on these networks based on actual experiments. We carried out several field experiments at a freight container terminal to analyze its IEEE 802.11 network and found out some problematic situations, such as over 50% retransmission rates and frequent disruption of communication link while a station is moving. We explain why these problematic situations happen and suggest some solutions, such as application of mesh technology, smart handoff based on location and movement pattern and adjustment of signal strength and channel allocation. Methods and tools used in the experiments are also detailed in the paper which may be helpful for similar future studies.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2017.11a
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• pp.39-41
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• 2017

본 연구에서는 해사영어어휘의 특징인 ballast water, fore peak bulkhead, container, freight station charges와 같은 n-gram의 복수 단어로 구성된 합성어 (multi-word compounds) 태깅(tagging)처리가 포함된 해사영어코퍼스를 구축하였다. 해사영어코퍼스는 백만 단어씩 수집한 학술, 법, 신문, 교과서 4개 하위 코퍼스로 구성된 총 400만 단어의 해사영어코퍼스로 구성되어 있다.

• Proceedings of the KSR Conference
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• 2004.10a
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• pp.133-138
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• 2004

Domestic freight car holding amount is possessing much amount than other vehicle model about 14,000. Problem is happening in bogie device of cast steel structure because is structure that there are many wear departments. Therefore, the KNR is restricting running speed of empty car by 70km/h low. In this research, presented speed elevation way as dynamic characteristic analysis result that use ADAMS and confirm running safety by main line test.

• Journal of the Korean Operations Research and Management Science Society
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• v.31 no.3
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• pp.11-25
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• 2006

Space may be a scarce resource in manufacturing shops, warehouses, freight terminals, and container terminals. This Paper discusses how to locate temporary storage Inventories In limited storage areas. A typical inventory is delivered from the location of the preceding process to the storage area and stored In the storage area during the certain period of time. And it may be relocated from the storage position to another. Finally. it is delivered from the final storage area to the location of the next process. Because this logistic process for an inventory requires handling activities, transportation activities, and storage spaces, the limitation in capacities of handling equipment, transportation equipment, and storage space must be considered when allocating spaces to the inventory. This problem Is modeled as a multicommodity minimal cost flow problem. And a heuristic algorithm for the Problem is proposed. Numerical experiments are presented to validate the mathematical model and the heuristic algorithm.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 1998.10a
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• pp.145-151
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• 1998

This paper is aimed to handle quick work for all the workers and to improve the productivity by adding more effective content in Crane Monitoring System. This contributing proportion of the increase of port productivity is more increasing concerning not only the port industry, but also all the informations of container crane which is the representative equipment by the rapid increase of the volume of freight of port. The basic of rapid service is the improvement of the productivity, the information of operation as to the productivity of crane for the quick handling within yard and especially the informations of breakdown and to handle breakdown as soon as possible has a greate effect on the increase of productivity.

• Proceedings of the KIEE Conference
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• 1998.07g
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• pp.2461-2463
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• 1998

The container crane is more expensive than other cranes, and is designed for efficient use. Since there are more control variables than other crane has more fault factors. Therefore it is important to reduce these factors efficiently and also to increase the capacity to move more freight in due time. To solve the above problems the velocity relation of the motor will be examined. In this paper the velocity relation of the motor will be expressed in a mathematical equations for efficient control.

• Proceedings of the KIEE Conference
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• 2000.07d
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• pp.2567-2568
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• 2000

The container crane is more expensive than other cranes, and is designed for efficient use. Since there are more control variables than other crane has more fault factors, Therefore it is important to reduce these factors efficiently and also to increase the capacity to move more freight in due time. To solve the above problems the velocity relation of the motor will be examined. In this paper, the velocity relation of the motor will be expressed in a mathematical equations for efficient control.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.34 no.4
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• pp.11-16
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• 2011

Information of freight tracking and tracing is one of core elements in logistics point of view. We can monitor the vehicle or vessel where freights are loaded and get the in-transit data via GPS. However, security problem exists after the shipments are unloaded. RFID is well utilized for securing the container which products are stuffed into. International standard organization sets relevant specification and e-seal appears to be at issue. The paper investigates current status of corresponding technology and proposes the policy for development of logistics industry.

• Journal of the Korean Society for Railway
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• v.15 no.3
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• pp.272-277
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• 2012

KORAIL's logistics business coefficient is improved slightly from 197.4 in 2009 to 190.7 in 2010 but the cost is still high compared to the revenues. In order to derive activities for the efficient logistics and measure their effects quantitatively, the analysis of various indexes that can be extracted from the statistical data is very important. In this study, the various indexes are analyzed to evaluate the efficiency of freight cars based on railway logistics. It can be used to estimate the various activities for the efficient logistics associated with freight cars. We suggest the Indexes as the number of transport, cumulative transport distance and transport income to evaluate the efficiency of freight cars and they should be applied according to the characteristics of each index.