Calculation of the fuzzy reliability in Neishabour train disaster; a case study

Y.C. Zanjani; Z. Rafie Majd; A. Mirzazadeh

Volume 2, Issue 1 , June 2015, Pages 1-15

  Fuzzy reliability is often used in analyzing the reliability in the large industrial systems. In this paper, a relatively new method is presented to analyze Neishabour (also called Nishapur, a city in Iran) train disaster. In this regards, by using the certain and uncertain propositions, unreliability ...  Read More

Determination of optimum of production rate of network failure prone manufacturing systems with perishable items using discrete event simulation and Taguchi design of experiment

F. Tavan; S.M. Sajadi

Volume 2, Issue 1 , June 2015, Pages 16-26

  This paper, considers Network Failure Manufacturing System (NFPMS) and production control policy of unreliable multi-machines, multi-products with perishable items. The production control policy is based on the Hedging Point Policy (HPP). The important point in the simulation of this system ...  Read More

Modeling and solving a three-stage fixed charge transportation problem considering stochastic demand and price

N. Shirazi; M. Seyyed Esfahani; H. Soleimani

Volume 2, Issue 1 , June 2015, Pages 27-40

  This paper considers a three-stage fixed charge transportation problem regarding stochastic demand and price. The objective of the problem is to maximize the profit for supplying demands. Three kinds of costs are presented here: variable costs that are related to amount of transportation cost ...  Read More

Particle swarm optimization for a bi-objective web-based convergent product networks

R. Hassanzadeh; I. Mahdavi; N. Mahdavi-Amiri

Volume 2, Issue 1 , June 2015, Pages 41-60

  Here, a collection of base functions and sub-functions configure the nodes of a web-based (digital)network representing functionalities. Each arc in the network is to be assigned as the link between two nodes. The aim is to find an optimal tree of functionalities in the network adding value to the ...  Read More

Virtual manufacturing cells scheduling considering lotstreaming and sequence dependent setup times

A. Ayooq; A. Alem Tabriz; A. Javani

Volume 2, Issue 1 , June 2015, Pages 61-73

  In this paper, a new mathematical model for the problem of job scheduling in virtual manufacturing cells (VMC) is presented to minimizing the completion time of all jobs. Sequence dependent setup times of machines is considered and lot-streaming is possible. In Virtual manufacturing cells, ...  Read More

Designing Effective Strategies to Improve Performance Indicators of Bread Industry Using System Dynamics: A case study in Iran

Z. Arastia; T.H. Hejazi; Z. Geilari

Volume 2, Issue 1 , June 2015, Pages 74-94

  Iranian bread production methods are often unsanitary, in the last decades, different attempts were made to mechanize production of Iranian breads, but a few of them, due to a variety of factors, could succeed. The aim of this study is to examine various factors affecting the system of bread production ...  Read More