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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Korean Institute of Industrial Engineers
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Journal DOI :
Korean Institute of Industrial Engineers
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Volume & Issues
Volume 27, Issue 4 - Dec 2001
Volume 27, Issue 3 - Sep 2001
Volume 27, Issue 2 - Jun 2001
Volume 27, Issue 1 - Mar 2001
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Quality Engineering in the e-Business Era : Research Framework and Direction
Kim, Kwang-Jae ; Cho, Hyun-Woo ; Lee, Seung-Shik ; Ahn, Hye-Lyn ; Lee, Dong-Uk ; Jeong, In-Jun ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 118~134
The research in the field of quality engineering has mainly focused on the manufactured products. The philosophy and concept of the existing quality engineering should be equally applicable in the coming e-Business era. However, there would be numerous new quality-related issues in the e-Business environment, due to the fundamental change in the business processes, which did not exist in the past. This paper first proposes a framework for quality engineering research suited for the e-Business environment, and then identifies major quality-related issues that should be resolved in the near future. It also evaluates the potential usefulness and limitations of the existing quality engineering tools in resolving such issues.
A Process Control Procedure Based on the Correlated Variable
Kwon, Hyuck-Moo ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 135~139
A process control procedure is suggested when screening inspection is performed with a surrogate variable correlated with the performance variable. Assuming bivariate normal distribution for the performance and screening variable, the procedure is designed on the basis of the time required for detecting process shift.
A Genetic Algorithm for Route Guidance System in Intermodal Transportation Networks with Time - Schedule Constraints
Chang, In-Seong ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 140~149
The paper discusses the problem of finding the Origin-Destination(O-D) shortest paths in internodal transportation networks with time-schedule constraints. The shortest path problem on the internodal transportation network is concerned with finding a path with minimum distance, time, or cost from an origin to a destination using all possible transportation modalities. The time-schedule constraint requires that the departure time to travel from a transfer station to another node takes place only at one of pre-specified departure times. The scheduled departure times at the transfer station are the times when the passengers are allowed to leave the station to another node using the relative transportation modality. Therefore, the total time of a path in an internodal transportation network subject to time-schedule constraints includes traveling time and transfer waiting time. In this paper, a genetic algorithm (GA) approach is developed to deal with this problem. The effectiveness of the GA approach is evaluated using several test problems.
Modeling and Analysis of Consolidated Transportation Between Industrial Complexes
Rim, Suk-Chul ; Kim, Sung-Bong ; Kim, Nae-Heon ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 150~157
Since the transportation cost takes two thirds of the logistics cost of Korean firms, significant reduction of business logistics cost can hardly be achieved without effective reduction of the transportation cost. Although consolidated transportation has been regarded as the most promising strategy for reducing the transportation cost, it has not been successful in practice. In this paper, we propose a consolidated transportation model for firms located in industrial complexes, present a heuristic algorithm to operate the system, and analyze the expected cost reduction.
A Tabu Search Algorithm for Single Machine Scheduling Problem with Job Release Times and Sequence - dependent Setup Times
Shin, Hyun-Joon ; Kim, Sung-Shick ; Ko, Kyoung-Suk ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 158~168
We present a tabu search (TS) algorithm to minimize maximum lateness on a single machine in the presence of sequence dependent setup times and dynamic job arrivals. The TS algorithm starts with a feasible schedule generated by a modified ATCS (Apparent Tardiness Cost with Setups) rule, then through a series of search steps it improves the initial schedule. Results of extensive computational experiments show that the TS algorithm significantly outperforms a well-known RHP heuristic by Ovacik and Uzsoy, both on the solutions quality and the computation time. The performance advantage is particularly pronounced when there is high competition among jobs for machine capacity.
Storage Capacity Estimation for Automated Storage/Retrieval Systems under Stochastic Demand
Cho, Myeon-Sig ; Bozer, Yavuz-A. ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 169~175
Most of studies on automated storage/retrieval (AS/R) system assumed that storage capacity is given, although it is a very important decision variable in the design phase. We propose a simple algorithm to estimate the required storage capacity, i.e., number of aisles and number of openings in vertical and horizontal directions in each aisle, of an AS/R system under stochastic demand, in which storage requests occur endogenously and exogenously while the retrieval requests occur endogenously from the machines. Two design criteria, maximum permissible overflow probability and maximum allowable storage/retrieval (S/R) machine utilization, are used to compute the storage capacity. This model can be effectively used in the design phase of new AS/R systems.
A Dynamic Market Potential Model for Forecasting the Mobile Telecommunication Service Market in Korea
Jun, Duk-Bin ; Park, Yoon-Seo ; Kim, Seon-Kyoung ; Park, Myoung-Hwan ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 176~180
In Korea, the mobile telecommunication service market is expanding rapidly and becoming more competitive. For service providers in such a dynamic environment, it is very important to accurately forecast demand including market potential in order to work out marketing strategies. In this paper, we suggest a general approach to forecast the market potential using a multinomial logit model, which is applied to individual-level market survey data. Then we develop a dynamic market potential model that can adapt to changes in the external environment without requiring further market survey. The proposed model is applied to the mobile telecommunication service market in Korea.
Analysis of Pricing and Efficiency Control Strategy between Online and Offline Marketing Channels
Cho, Hyung-Rae ; Yu, Jung-Sub ; Cha, Chun-Nam ; Lim, Sang-Kyu ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 181~189
The proliferation of the Internet and related technologies and applications has led to a new form of market place known as the electronic store. In this paper, we study competition between two shopping channels, an electronic store and traditional retailers. Based on the circular spatial market model, we derive the Nash and Stackelberg equilibria as a function of the efficiency of the electronic store. The result shows that the Stackelberg equilibrium is always superior to the Nash equilibrium for both channels. It is also shown that, in some cases, the electronic store has incentive to decrease its efficiency to gain more profit.
Visual Fields Reflecting Effects of Target Size, Color and Meridian in Visual Tasks
Kee, Do-Hyung ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 190~196
This study aims to develop three types of the visual fields: stationary field, eye field, and head field, which are classified depending upon the eye and head movements. A visual experiment taking target size, target color, and meridian into account was conducted, in which the L32 orthogonal array was employed. The results showed that target size and meridian were significant at
=0.01 in all three visual fields. Contrary to expectation, target color was significant at
=0.10 only in the head field. Furthermore, the differences in size of the head field depending upon four target colors were negligibly small. Three linear regression models were provided to generate visual fields which are appropriate for given visual task's characteristics. In addition, a simple method using adjusting factor was also proposed so that anyone without knowledge for human factors/ergonomics can easily generate and use them when designing or evaluating visual tasks. It is expected that the visual fields presented in this study can be easily used even by non-ergonomic experts in real situations due to their simplicity.
Load Carrying Effect on the Biomechanical Parameters of Slips and Falls
Myung, Ro-Hae ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 197~202
The biomechanical analysis of the load carrying effect on different floor surfaces has been conducted. Four different floor surfaces were prepared for ten subjects with each walking at a fixed velocity(1.33 m/sec) while carrying five different loads. The results showed that because of the significant interaction effect between floor slipperiness and the load carrying task, the load carrying effect should be analyzed according to different levels of the floor slipperiness, especially contaminant floors. On oily surfaces, slip distance(SD) and heel velocity (HV) increased whereas stride length(SL) decreased as load increased. In other words, significantly longer SD, faster HV, and no normal gait were found as load increased. As a result, a different protocol should be applied to measure floor slipperiness on oily floors as compared to dry surfaces for tribological approach.
A Selection and Screening Procedure to Determine the Critical Design Variables from Consumer Preference Survey
Han, Soo-Mee ; Yoo, Keum-Sun ; Yun, Myung-Hwan ; Han, Sung-H. ; Hong, Sang-W. ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 203~213
The image and impression characteristics of the consumer electronic products have become an important factor in purchasing decisions. This study aims to analyze and interpret the image and impression characteristics based on the consumer preference survey. The survey consisted of two parts. First part was to measure the predetermined 52 design variables that can represent the design variables of the products. In the second part, 60 subjects were requested to evaluate 36 audio/video electronic products on 25 different image attributes such as luxuriousness, attractiveness, and granularity. In this study, empirical data from the survey were analyzed through various multivariate analysis and ANOVA analysis. Additionally, this study suggested a statistical procedure that can be applied to select and/or screen critical design variables. It is expected that the results of this study can provide practical information to the designers of consumer electronic products.
Learning Single - Issue Negotiation Strategies Using Hierarchical Clustering Method
Jun, Jin ; Kim, Chang-Ouk ; Park, Se-Jin ; Kim, Sung-Shick ;
Journal of Korean Institute of Industrial Engineers, volume 27, issue 2, 2001, Pages 214~225
This research deals with an off-line learning method targeted for systematically constructing negotiation strategies in automated electronic commerce. Single-issue negotiation is assumed. Variants of competitive learning and hierarchical clustering method are devised and applied to extracting negotiation strategies, given historical negotiation data set and tactics. Our research is motivated by the following fact: evidence from both theoretical analysis and observations of human interaction shows that if decision makers have prior knowledge on the behaviors of opponents from negotiation, the overall payoff would increase. Simulation-based experiments convinced us that the proposed method is more effective than human negotiation in terms of the ratio of negotiation settlement and resulting payoff.