• Journal of Korea Port Economic Association
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• v.20 no.2
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• pp.253-273
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• 2004

Coastal cargo shipping is regarded as environmentally friendly and less costly compared to other transport modes: therefore, many developed countries endeavor to activate coastal cargo shipping. In Korea, a couple of policies are suggested for coastal cargo shipping; however, shippers' aspects seem to be neglected or not analyzed. In this regard, this study aims to identify barriers in the coastal cargo shipping, in respect to shippers' aspects. To find out the reasons shippers hesitate to use coastal cargo shipping, we made a questionnaire and surveyed. We found out some meaningful points in this study as the followings. First, the proportion of using the coastal cargo shipping is very low. Second, the shippers give weights on time and costs factor, and their preference for punctuality and stability of the transportation services is extremely high. Third, the shippers believe that improvement of the services of the coastal cargo shipping is very important in national logistics system although most do not use currently. They also believe that the success of coastal cargo shipping lies in whether it can transport the huge amount of cargos with lowest costs. Finally, the most important factor, when they choose the transport mode, is the punctuality and stability of the transportation services.

• Journal of Navigation and Port Research
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• v.30 no.1 s.107
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• pp.91-96
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• 2006

Recently, the development construction of New Masan Container Terminal (1-1 Phase) with private investment would be set for opening in the 2011 year in Masan Port, Korea However, as new container terminals of the Pusan New Port and 'the New Ulsan Container Terminal neighboring Masan Port will be also planned to open around the time, the strategy establishment for Masan Port is required for a keen competition among these ports. To provide it with strategic points, we applied SP model used for customers' behavior method to analyze customer's preference changes with the shifts of the ports' conditions for customers.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2016.05a
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• pp.217-218
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• 2016

Domestic distribution warehouse has been developed as a strategic strategic point for inventory management and shipping of goods for companies. Warehouse is classified as distribution center, transport center, complex center depending on the role. Currently, at the same time it is considering the price factor such as rent price or land price and and logistical capabilities when considering the location of domestic warehouses. The price evaluation factors has specific methods for the evaluation but logistical elements is not currently clear. In this study, we have studied location selection of distribution center considering the logistical elements through expert surveys.

• International Journal of Aeronautical and Space Sciences
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• v.17 no.4
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• pp.604-613
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• 2016

In this paper, Human-in-the-Loop (HiTL) simulations of Remotely Piloted Aircraft System (RPAS) operations in two different Air Traffic Management (ATM) concepts, conventional radar vectoring and Trajectory Based Operations (TBO), were performed to assess the impacts of RPAS integration in the future ATM environment. TBO concept maximizes the throughput by planning and sharing 4-D trajectories between pilots and controllers, and it is considered one of the key concepts to enable RPASs to operate with manned aircraft in congested airspaces. RPASs are characterized by having communication delay or temporary loss of communication. TBO capability was added to the integrated air traffic simulation system for this study, which was developed in the Inha University. HiTL simulations were performed by a trainee air traffic controller with three scenarios, and the data were analyzed using safety, efficiency, and controller workload metrics. The results suggest that TBO were effective in reducing delays and controller workload while maintaining the level of safety.

• Korea Logistics Conference
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• v.10 no.1
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• pp.5-24
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• 2002

전자상거래의 발달은 산업구조와 상거래의 변화를 가져왔다. 기존의 제조업체와 도, 소매상과 소비자와의 관계 변화에 따라 물류에 대한 중요도가 더해 가고 있다. 인터넷상에서 실시간으로 이루어지는 전자상거래에서 물류는 그 성패를 가늠할 만큼 중요한 요소라 할 수 있다. 국내에서는 변화하는 정보화시대에 대비하여 정부차원에서 지난 90년대 중반부터 물류분야에서 종합물류정보망을 구축하여 수출입물류와 국내물류의 정보화를 추진하고 있다. 통관망과 더불어 종합물류정보망은 수출입물류에 있어 전자문서교환(EDI)과 컨테이너터미널에서의 게이트자동화와 터미널운영정보서비스를 제공하고 있다. 육상에서는 첨단화물운송정보시스템(CVO)을 구축하여 화물차량실시간추적 및 수배송주선서비스를 제공하고 육상과 수출입물류에서 정보관리와 통계서비스를 제공하고 있다. 전자상거래에 따른 산업구조와 기술개발 등의 변화 외에도 남북한 긴장완화, 동북아시아 환경변화, 환경친화형 사회 구축 등에 따른 물류정보화에 대한 접근이 필요하게 되었다. 이에 따라 외국에서의 전자상거래의 발달에 따른 물류정보화의 추세, 통신 및 정보기술(IT)의 발달에 따라 구현가능한 물류정보화 서비스를 살펴보고 국내에서 추진중인 종합물류정보망의 서비스와 시스템의 추진방향에 대해 다루어 보았다. 종합물류정보망에서는 향후 수출입물류정보서비스, 첨단화물운송(CVO) 서비스, 통합물류DB서비스, 물류거점시설정보서비스, 물류 e-Marketplace 서비스를 구축, 제공할 예정이다.

• Structural Engineering and Mechanics
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• v.52 no.6
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• pp.1193-1208
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• 2014

A simulation of failures on responsible elements is only one form of the extreme structural behavior analysis. By understanding the dynamic behavior in incidental situations, it is possible to make a special structural design from the point of the largest axial force, stress and redundancy. The numerical realization of one such simulation analysis was performed using FEM in this paper. The boundary parameters of transient analysis, such as overall structural damping coefficient, load accelerations, time of load fall and internal forces in the responsible structural elements, were determined on the basis of the dynamic experimental parameters. The structure eigenfrequencies were determined in modal analysis. In the study, the basic incidental models were set. The models were identified by many years of monitoring incidental situations and the most frequent human errors in work with heavy structures. The combined load models of structure are defined in the paper since the incidents simply arise as consequences of cumulative errors and failures. A feature of a combined model is that the single incident causes the next incident (consecutive timing) as well as that other simple dynamic actions are simultaneous. The structure was observed in three typical load positions taken from the crane passport (range-load). The obtained dynamic responses indicate the degree of structural sensitivity depending on the character of incident. The dynamic coefficient KD was adopted as a parameter for the evaluation of structural sensitivity.

• The Journal of Korea Robotics Society
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• v.4 no.1
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• pp.1-9
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• 2009

Radio Frequency Identification (RFID) is an automatic identification method. Information such as identification, logistics history, and specification of products are written and stored into the memory of RFID tags (that is, transponders), and retrieved through RF communication between RFID reader device and RFID tags. RFID systems have been applied to many fields of transportation, industry, logistics, environment, etc in order to improve business efficiency and reduce maintenance cost as well. Recently, some research results are announced in which RFID devices are combined with other sensors for mobile robot localization. In this paper, design of multi-protocol baseband for RFID reader device is proposed, and the baseband modem is implemented into SoC (System On a Chip). The baseband modem SoC for multi-protocol RFID reader is composed of several IP (Intellectual Property) blocks such as multi-protocol blocks, CPU, UART(Universal Asynchronous Receiver and Transmitter), memory, etc. As a result, the SoC implemented with FPGA(Field Programmable Gate Array) is applied to real product. It is shown that the size of RFID Reader module designed with the FPGA becomes smaller, and the SoC chip price for the same function becomes cheap. In addition, operation performance could be the same or better than that of the product with no SoC applied.

• The Journal of Industrial Distribution & Business
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• v.9 no.3
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• pp.7-17
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• 2018

Purpose - The purpose of this paper is to improve last mile delivery capability and ensure customers' satisfaction by approaching an analytic hierarchy process(AHP) and identifying criteria framework to determine locations of last mile delivery centre(LMDC). Research design, data, and methodology - Traffic congestion and emission policy in cities are barriers of last mile delivery in dense areas. The urban consolidation centre(UCC) cannot increase last mile delivery efficiency in dense cities because of their space and traffic limitation. In this paper, we develop a case to improve last mile delivery efficiency and to ensure customers' satisfaction by concentrating on LMDC. In addition, AHP has been applied to identify criteria framework and determine LMDC locations. The weighted priorities are derived from parcel delivery industry experts and have been calculated using Expert Choice software. Results - The framework criteria have assisted decision makers to place LMDC in a dense area to enhance customer's satisfaction with last mile delivery service. Conclusions - AHP has provided ranking framework criteria of LMDC potential for parcel delivery industry. The LMDC helps by improving last mile delivery efficiency to final destination amids conditions of CO₂ emissions, traffic congestion, and pollution problems. It especially concerns delivery service activities when delivering parcels to customers rather than UCC.

• Journal of the Korea Safety Management & Science
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• v.17 no.1
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• pp.203-213
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• 2015

Recently, online grocery shopping has been increasing with the development of internet, mobile, and IT technology due to the proportion of consumers changes like increasing single households and double-income couples. Therefore, online sales from distributors with offline stores have also increased, and the offline retailers are facing their limits in dealing with store-based online channel they have carried out. Domestic offline retailers benchmarked overseas advanced retailers to solve this problem by reviewing about developing the online-only distribution center. However, much investment is needed in order to operate the distribution center with the new concept from abroad. In this study, we have reviewed the current online grocery market trend and the theory related to developing distribution system of the online mall. For offline retailers, we have reviewed the case which developed the distribution center applied to the nation's first online-only distribution center. The purpose of this study is reducing trial and error for local retailers in developing online-only distribution centers and suggesting ways to improve investment effect.

• The Journal of Fisheries Business Administration
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• v.50 no.4
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• pp.1-9
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• 2019

Seaweed by-products have been dumped into the sea and induced marine pollution. However, they can be recycled as a valuable natural resources. Approximately 240,000 tons of sea mustard and kelp by-products were estimated to be producted during the last three years. The estimate corresponds 6.7% of the total production of marine aquaculture and 14.9% of the total production of seaweeds. When adding up the by-products from fish and mollusks, approximately 1,000,000 tons of fisheries by-products were thrown out into the sea every year. A three-step strategy is required for the industralization of fisheries by-products. The first step is the construction of the processing foundation of by-products, the second is its food industralization, and the third is its recycling as raw biomaterials. The stable supply of raw materials is the prerequisite for the industralization. Thus, it is necessary to construct the refuse logistics around chief production districts and to build the processing facility and frozen storage of by-products. Cooperation among private enterprises and government investment for research and development is required the second and third steps.