• IE interfaces
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• v.17 no.spc
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• pp.141-151
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• 2004

As today's business environment has become more and more competitive, forward as well as backward flows of products among members belonging to a supply chain have been increased. The backward flows of products, which are common in most industries, result from increasing amount of products that are returned, recalled, or need to be repaired. Effective management for the backward flows of products has become an important issue for businesses because of opportunities for simultaneously enhancing profitability and customer satisfaction from returned products. Since third party logistics service providers (3PLs) are playing an important role in reverse logistics operations, they should perform two simultaneous logistics operations for a number of different clients who want to improve their logistics operations for both forward and reverse flows. In this case, distribution networks have been independently designed with respect to either forward or backward flows so far. This paper proposes a mixed integer programming model for the design of network integrating both forward and reverse logistics. Since the network design problem belongs to a class of NP-hard problems, we present an efficient heuristic algorithm based on genetic algorithm (GA), of which the performance is compared to the lower bound by Lagrangian relaxation. Finally, the validity of proposed algorithm is tested using numerical examples.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.10a
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• pp.375-388
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• 2004

As today's business environment has become more and more competitive, forward as well as backward flows of products among members belonging to a supply chain have been increased. The backward flows of products, which are common in most industries, result from increasing amount of products that are returned, recalled, or need to be repaired. Effective management for these backward flows of products has become an important issue for businesses because of opportunities for simultaneously enhancing profitability and customer satisfaction from returned products. Since third party logistics service providers (3PLs) are playing an important role in reverse logistics operations, the 3PLs should perform two simultaneous logistics operations for a number of different clients who want to improve their logistics operations for both forward and reverse flows. In this case, distribution networks have been independently designed with respect to either forward or backward flows so far. This paper proposes a mixed integer programming model for the design of network integrating both forward and reverse logistics. Since this network design problem belongs to a class of NP-hard problems, we present an efficient heuristic based on Lagrangean relaxation and apply it to numerical examples to test the validity of proposed heuristic.

• Journal of The Institute of Information and Telecommunication Facilities Engineering
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• v.9 no.3
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• pp.112-118
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• 2010

This paper propose G-code and G-Pedigree system that are development based on the e-Pedigree and EPC, and RFID solutions for logistics management is proposed. The proposed G-Pedigree system to include the forward logistics and reverse logistics all logistics and management systems are appropriate for the event, with security features, security and accessibility of critical data was strengthened. The proposed G-code systems and the EPC code of the existing RFID readers, tags can be applied to, the more you can manage the logistics-related information.

• Journal of Korea Society of Industrial Information Systems
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• v.22 no.2
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• pp.79-89
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• 2017

The Optimization of a Closed-Loop Supply Chain (CLSC) Model Using an Adaptive Hybrid Genetic Algorithm (AHGA) Approach is Considered in this Paper. With Forward and Reverse Logistics as an Integrated Logistics Concept, The CLSC Model is Consisted of Various Facilities Such as Part Supplier, Product Manufacturer, Collection Center, Recovery Center, etc. A Mathematical Model and the AHGA Approach are Used for Representing and Implementing the CLSC Model, Respectively. Several Conventional Approaches Including the AHGA Approach are Used for Comparing their Performances in Numerical Experiment.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2006.10a
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• pp.37-45
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• 2006

This paper summarized the operation experience and development trend of overseas port logistics, social environment for the development of China's port logistics, and the strategic significance for accelerating the development of China's port logistics. Then it analyzed the main problems in the process of the development of China's port logistics. Finally, it put forward measures and suggestions to accelerate the development of China's port logistics.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.24 no.66
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• pp.69-77
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• 2001

The management of return flows induced by the various forms of reuse of products and materials in industrial production processes has received growing attention throughout this decade. As one of the developing countries in the world trade market, we have to apply the reverse logistics system considering an environment seriously, and to implement reverse logistics activities abreast with the forward logistics system of a companies. Therefore, the objective of this study was to discuss what the reverse logistics system of Environmentally Conscious Logistics Systems(ECLS) is by introducing a case study.

• Proceedings of the Society of Korea Industrial and System Engineering Conference
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• 2002.05a
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• pp.335-341
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• 2002

In a mega competition having no national boundaries, we have to apply the logistics system considering an environment seriously and to construct the environmentally conscious logistics system (ECLS) with the forward and reverse logistics system of a companies. The objectives of this research were to provide strategies required for implementation of the environmentally conscious logistics system. And also, we propose the future research topics needed for improvement of the studies on environmentally conscious logistics system.

• International Commerce and Information Review
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• v.8 no.3
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• pp.167-189
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• 2006

In this year(2006), the Korean government has announced the integrated logistics promotion act, to improve the international competitiveness of Korean logistics companies and to develop the north-east asia logistics hubs. Therefore, in this study, emphasized to goes forward better and presents integrated logistics industry expansive assignment through domestic logistics companies' problem and integrated logistics industry investigation of certification system as plan for successful fixing of integrated logistics industry for Northeast Asia logistics hub while strengthen international competitiveness of domestic professional logistics companies. So that the South Korea becomes Northeast Asia logistics hub country, to expand lacking logistics infra at good time is important, also, reform backward logistics system of consignor companies and advance actively to the Northeast Asia logistics market is very important to improve the professional logistics companies' upbringing to lead the Northeast Asia logistics market.

• Journal of Korea Society of Industrial Information Systems
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• v.21 no.4
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• pp.31-41
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• 2016

This paper is to evaluate the performance of a proposed hybrid genetic algorithm (pro-HGA) approach using closed-loop supply chain (CLSC) model. The proposed CLSC model is a integrated supply chain network model both with forward logistics and reverse logistics. In the proposed CLSC model, the reuse, resale and waste disposal using the returned products are taken into consideration. For implementing the proposed CLSC model, two conventional approaches and the pro-HGA are used in numerical experiment and their performances are compared with each other using various measures of performance. The experimental results show that the pro-HGA approach is more efficient in locating optimal solution than the other competing approaches.

• Journal of the Korea Safety Management & Science
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• v.10 no.1
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• pp.129-137
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• 2008

The studies on the logistics has been mainly centered on the logistics information system and logistics performance on the supply chain for the enterprise's profit making. For sustainable development, it's being required the construction of recycling-oriented system, and it's also necessary to construct the efficient system not only in forward but in reverse channel. In addition, it's required to construct information system for supporting reverse logistics smoothly. In this study of manufacturing enterprises, recognition on the environmental problems is set as the adaptation degree to the national environmental regulations and enterprise's concern to the environmental logistics, and it presents the direction through analyzing the effects of such environmental logistics recognition on reverse logistics information system and performance. In order to achieve these aims, it was performed through combining philological and positive studies.