فهرست مطالب

Industrial Engineering and Productional Research - Volume:21 Issue: 1, Jun 2010

International Journal of Industrial Engineering and Productional Research
Volume:21 Issue: 1, Jun 2010

  • 54 صفحه،
  • تاریخ انتشار: 1389/07/01
  • تعداد عناوین: 6
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  • Fatemeh Bagheri, M. J. Tarokh Page 1
    Assessment and selection of suppliers are two most important tasks in the purchasing part in supply chain management. Supplier selection can be considered to be a single or multi-objective problem. From another point of view, it can be a single or multi-sourcing problem. In this paper, an integrated AHP and Fuzzy TOPSIS model is proposed to solve the supplier selection problem. This model makes the decision-maker to be able to solve this problem with different criteria and different weight for each criterion with respect to the purchasing strategy. Finally, the proposed model is illustrated by an example.
  • M. Yaghini *, J. Lessan, H. Gholami Mazinan Page 11
    Capacitated p-median problem (CPMP) is a well-known facility-location problem, in which p capacitated facility points are selected to satisfy n demand points in such a way that the total assigned demand to each facility does not exceed its capacity. Minimizing the total sum of distances between each demand point and its nearest facility point is the objective of the problem. Developing an efficient solution method for the problem has been a challenge during last decades in literature. In this paper, a hybrid met heuristic called GACO is developed to find high quality and fast solutions for the CPMP. The GACO combines elements of genetic algorithm and ant colony optimization met heuristics. Computational results on standard test problems show the robustness and efficiency of the algorithm and confirm that the proposed method is a good choice for solving the CPMP.
  • Ramin Sadeghian Page 17
    The Materials Requirements Planning (MRP) method that is applied in production planning and management has some weaknesses. One of its weaknesses is that the time in MRP method is discrete, and is considered as time period. Hence we are not able to order our requirements at irregular time moments or periods. In this paper, a new form of MRP is introduced that is named Continuous Materials Requirements Planning (CMRP) approach. We discuss the disadvantages of Discrete MRP (DMRP) approach and analyze the conditions, applications and the manner of applying CMRP approach in our problems.
  • Kamran Feizi, Mohammad Hossein Ronaghi Page 23
    One of the crucial factors affecting success of e-banking services is customer’s trust. Acquiring customer trust depends on different variables that an e-banking struggles to control. This research aims to explain and clarify the inter-relationships and the interaction effects among customer’s online trust and other relevant factors such as satisfaction and loyalty in e-banking. We developed a model of customer''s trust in e-banking industry based on the outcomes of previous researches and semi-structured interviews with experts in e-banking services. To examine the model a descriptive survey was applied. The survey sample population consisted of 405 randomly taken e-banking service users in the city of Tehran, according to a cluster random sampling skim. An important part of the results revealed Trust beliefs relate directly with satisfaction and loyalty among e-banking customers.
  • Mohammad Najafi Nobar, Setak Setak Page 35
    In nowadays world competitive market, on account of the development of electronic media and its influence on shortening distances, companies require some core competencies in order to be able to compete with numerous competitors in industry and sustain their situation in such a market. In addition companies achieve this target are those which their processes perform great and exploit from competitive price, quality, guarantee, etc. Since some parameters such as price and quality are so dependent on the performance of company supply chain management, so the results can highly impress the final price and quality of products. One of the main processes of supply chain management is supplier selection process which its accurate implementation can dramatically increase company competitiveness. In presented article two layers of suppliers have been considered as a chain of suppliers. First layer suppliers are evaluated by two groups of criteria which the first one encompasses criteria belongs to first layer suppliers features and the second group contains criteria belong to the characteristics of second layer suppliers. One of the criteria is the performance of second layer suppliers against environmental issues. Then the proposed approach is solved by a method combined of concepts of fuzzy set theory (FST) and linear programming (LP) which has been nourished by real data extracted from an engineering design and supplying parts company. At the end results reveal the high importance of considering second layer suppliers features as a criteria for selecting the best supplier.
  • S.M. Seyedhosseini *, S. J. Sadjadi, Kh. Hassanlou Page 45
    Portfolio management is one of the most important areas of research in financial engineering. This paper is concerned with multi period decision problem for financial asset allocation when the rate of borrowing is greater than the rate of lending. Transaction costs as a source of concern for portfolio managers is also considered in this paper. The proposed method of this paper is formulated in a form of dynamic linear programming which is capable of determining the amount of investment in different time periods. The method is also implemented using some numerical examples and the output results are discussed.