1. Fuzzy Big-M Method for Solving Fuzzy Linear Programs with Trapezoidal Fuzzy Numbers

A. Hatami; H. Kazemipoor

Volume 2, Issue 3 , Summer 2013, Pages 1-9

  The fuzzy primal simplex method [15] and the fuzzy dual simplex method [17] have been proposed to solve a kind of fuzzy linear programming (FLP) problems involving symmetric trapezoidal fuzzy numbers. The fuzzy simplex method starts with a primal fuzzy basic feasible solution (FBFS) for FLP problem and ...  Read More

2. The "5S" Strategy by Using PDCA Cycle for Continuous Improvement of the Manufacturing Processes in Agriculture Industry

B. Singh Sidhu; V. Kumar; A. Bajaj

Volume 2, Issue 3 , Summer 2013, Pages 10-23

  The global marketplace has witnessed an increased pressure from customers and competitors in manufacturing .In this age of agile manufacturing the global competition characterized by both technology push and market pull had forced the companies to achieve world-class performance through continuous improvement ...  Read More

3. Solving Fuzzy Step Fixed Charge Transportation Problems via Metaheuristics

F. Rajabi; S.E. Najafi; M. Hajiaghaei-Keshteli; S. Molla-Alizadeh-Zavardehi

Volume 2, Issue 3 , Summer 2013, Pages 24-34

  In the present paper the step fixed charge transportation problem under uncertainty, particularly when variable and fixed cost are given in fuzzy forms, is formulated. In order to solve the problem, two metaheuristic, simulated annealing algorithm (SA) and variable neighborhood search (VNS), are developed ...  Read More

4. Application of Fuzzy Hybrid Analytic Network Process in Equipment Selection of Open-Pit Metal Mines

A. Rahimi Ghazikalayeh; M. Amirafshari; H.M. Mkrchyan; M. Taji

Volume 2, Issue 3 , Summer 2013, Pages 35-46

  Equipment selection is one of the most important aspects of open pit design. The selection of equipment for mining applications is not a well-defined process and because it involves the interaction of several subjective factors or criteria, decisions are often complicated and may even embody contradictions. ...  Read More

5. Minimizing Total Resource Tardiness Penalty Costs in the Resource Constrained Project Scheduling Problem with Metaheuristic Algorithms

R. Golestaneh; A. Jafari; M. Khalilzadeh; H. Karimi

Volume 2, Issue 3 , Summer 2013, Pages 47-57

  In this paper, we study a resource-constrained project-scheduling problem in which the objective is minimizing total Resource Tardiness Penalty Costs. We assume renewable resources that are limited in number, are restricted to very expensive equipment and machines, therefore they are rented and used ...  Read More