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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal DOI :
Korean Institute of Industrial Engineers
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Volume & Issues
Volume 19, Issue 4 - Dec 2006
Volume 19, Issue 3 - Sep 2006
Volume 19, Issue 2 - Jun 2006
Volume 19, Issue 1 - Mar 2006
Selecting the target year
An Order Releasing Algorithm for a Semiconductor Wafer Manufacturer
Kim, Ki-Young ; Kang, Chang-Ho ; Kim, Kap-Hwan ;
IE interfaces, volume 19, issue 2, 2006, Pages 97~105
In this paper, based on the process analysis of a semiconductor company, a lot order release procedure (input regulation) is developed for a semiconductor company. The major characteristic of the order release procedure in this paper is to consider the workloads of machines which are obtained from a virtual lot flows by the dispatching rule at machines in the shop of the semiconductor company. The objective is to minimize the cycle time and to obtain other good performances. A simulation is performed in order to evaluate the order release procedure in this paper.
Evaluation of Risk Factors in Water Supply Networks using PROMETHEE and ANP
Hong, Sung-Jun ; Lee, Yong-Dae ; Kim, Sheung-Kown ; Kim, Joong-Hoon ;
IE interfaces, volume 19, issue 2, 2006, Pages 106~116
In this study, the priority of risk factors in supplying water through water supply pipeline network was evaluated by PROMETHEE and ANP multi-criteria decision analysis. We chose 'corrosion', 'burst' and 'water pollution' in pipe as major reference criteria and selected eight risk factors to evaluate the priority, and then we compared the results of PROMETHEE with those of ANP. We also analyzed the results of the sensitivity analysis by changing the weights and parameters of preference functions in PROMETHEE. We investigated the possibility of integrating two methods by using the results of ANP as the weights of preference function in PROMETHEE. The priority of risk factors for supplying municipal water which is evaluated by this study may provide basic data to establish a contingency plan for accidents, or to establish the specific emergency response procedures.
A Study on Implementation Guideline of Screening Mixture Design and Analysis for the Development of New Mixture Products
Kim, Jeong-Suk ; Byun, Jai-Hyun ;
IE interfaces, volume 19, issue 2, 2006, Pages 117~123
Many products, such as gasoline, polymer plastics, alloys, and ceramics are manufactured by mixing two or more ingredients or components. When we are to develop new mixture products, we must deal with a long list of potentially important component variables. This paper introduces some mixture screening designs, analysis tools for screening important variables, and a guideline for applying these analysis tools. The results of this paper will be helpful to engineers who work in the research and development sector of mixture product industries.
Heuristic for Distribution Planning in Capacitated Multi-echelon Supply Chains
Kwon, Ick-Hyun ; Shin, Hyun-Joon ; Kim, Sung-Shick ;
IE interfaces, volume 19, issue 2, 2006, Pages 124~132
The system under study is a single item, multi-echelon distribution system with a capacitated production facility. All the nodes at the downstream ends are demand-sites, i.e., ordered items are delivered to the customers from the node. Also any transshipment depots in the midstream can be demand-sites as well. For a given planning period, at each of demand-site, demand is forecasted and known. Our objective is to minimize the average system cost per period which is the sum of holding and backorder costs in the entire network. Due to the capacity restrictions, it is difficult to establish efficient distribution planning. To overcome such a difficulty and obtain a reasonable and better solution, we convert this problem into a single machine earliness and weighted tardiness scheduling. We propose a simple but cost-effective heuristic for this problem. The experimental results showed that the proposed heuristic obtained much better solutions compared with another approach.
Efficient Management of Reading-Rooms in a University Library
Kim, Ji-Pyo ;
IE interfaces, volume 19, issue 2, 2006, Pages 133~139
The university library plays the most important role in university. It provides the space and facilities to keep a variety of books and read them. One facility which is the most frequently used in a library is a reading room. In reality, it is the place where many college students spend most of their time. However, there are sometimes severe competitions to get a seat in a reading room, especially near the time of examinations. In order to resolve this situation and to increase the student‘s satisfaction, these days, many universities have installed a seat management system. In this paper, first, problems on the management of a reading room and student’s responses are reviewed. Then operational issues on the seat management systems are investigated and analyzed through simulations. Finally, discussions are followed to improve the effectiveness of a seat management system.
Development of Customer-Centered Convergence Service Concepts : A Systematic Framework and a Case Study in Telecommunications Industry
Kim, Kwang-Jae ; Min, Dae-Kee ; Yook, Jin-Bum ; Park, Jeong-Seok ; Lee, Jee-Hyung ; Choi, Jae-Kyung ; Ryu, Kyung-Seok ;
IE interfaces, volume 19, issue 2, 2006, Pages 140~152
Today, many companies realize that the effort to develop new products / services faster that customers want and continue to purchase is crucial for their survival. As the service sector is rapidly growing, one of the challenges faced by the service industries is the lack of effective methodologies for new service development. This paper proposes a systematic framework for developing new service concepts, with an emphasis on generating innovative, convergence-type service concepts from the customer‘s perspective. The framework consists of three phases-identification of customer needs (Phase I), extraction of new service opportunities (Phase II), and generation of new service concepts (Phase III). The proposed framework is demonstrated through a case study in the telecommunications industry. In the case study, a survey was conducted on ten customers to identify the latent customer needs; 61 new service opportunities were extracted; and 129 new service concepts were generated.
The Scheduling Algorithm for Operating the Facility of Exhibition and Convention
Kim, Chang-Dae ; Joo, Won-Sik ;
IE interfaces, volume 19, issue 2, 2006, Pages 153~159
The research of scheduling algorithms for operating the facility of exhibition and convention can be hardly found in published papers. This study is to find problems in the process of operating the facility of exhibition and convention and to develop the scheduling algorithm satisfying those problems. The scheduling algorithm of this paper is developed through constructing the mathematical model and analyzing the mathematical structure of variables and constraints in that model. The scheduling algorithm developed in this paper consists of the first stage of scheduling, the second stage of feasibility routine and the third stage of improving scheduling results. Some experimental results are given to verify the effectiveness of the scheduling algorithm developed in this paper.
JIBUN (location) assignment algorithm for assembly blocks : A case of Hyundai Heavy Industries
Park, Chang-Kyu ; Seo, Jun-Yong ;
IE interfaces, volume 19, issue 2, 2006, Pages 160~167
It is a crucial managerial issue how to manage assembly blocks at shipyard. Based on the project experience in Hyundai Heavy Industries, this study points out the difficulties on the block stockyard operations, formalizes the JIBUN (location) assignment problem for assembly blocks, and develops the JIBUN (location) assignment algorithm whose purpose is to reduce the number of unproductive block moves. Through simulation experiments for various situations, this study demonstrates the usefulness of JIBUN (location) assignment algorithm. In addition, this study examines the impacts of block move sequence rules and of block stockyard layouts on the block stockyard operations.
Optimal Design of Reporting Cell Location Management System using Ranking Ant Colony System
Kim, Sung-Soo ; Kim, Geun-Bae ;
IE interfaces, volume 19, issue 2, 2006, Pages 168~173
In the Reporting Cell Location Management (RCLM) system, a subset of cells in the network is designated as the reporting cells. Each mobile terminal performs location update only when it enters one of these reporting cells. When a call arrives, the paging is confined to the reporting cell the user last reported and the neighboring bounded non-reporting cells. Frequent location update may result in degradation of quality of service due to interference. Miss on the location of a mobile terminal will necessitate a search operation on the network when a call comes in. We must decide the number of reporting cells and which cell should be reporting cell to balance the registration (location update) and search (paging) operations to minimize the cost of RCLM system. This paper proposes a ranking ant colony system (RACS) for optimization of RCLM system.