Analysis of Multi Attribute Decision Making Problems by Using of Data Envelopment Analysis Technique

Saeid Nasrollahi-Sebdani; Majid Esmaelian; Daryush Mohamadi-Zanjirani

Volume 1, Issue 4 , October 2014, Pages 198-207

  Data Envelopment Analysis (DEA) is used for calculating of relative efficiency and then ranking of decision making units (DMU) subject to inputs and outputs in a continuous decision making   space. In this paper, DEA models, Cook and Kress Model and Belton-Vickers model have been applied as ...  Read More

Proposing Multi-Objective Mathematical Model for Design of Multi-Product Forward and Reverse Logistics Network

Ehsan Hashemi; Reza Tavakkoli Moghadam; Mehdi Bashiri

Volume 1, Issue 4 , October 2014, Pages 208-229

  The attestation towards environmental, statutory obligations and economic interests arising from rehabilitation operations in recent years has led to more focus on reverse logistics operations. To this end, integration of the design of reverse and forward logistics networks which results in prevention ...  Read More

Hybrid Approach of ANP and DEMATEL for Selecting Optimal Maintenance Strategy: a case study in the pharmaceutical industry

Ali Nakhjavani; Naser Mollaverdi; Farimah Mokhatab Rafiee

Volume 1, Issue 4 , October 2014, Pages 230-249

  Organizations' competitiveness and efficiency depend on the reliability, availability and productivity of their production equipment today. In order t o increase reliability and safety level with reasonable cost, it is vital for companies to select the appropriate maintenance strategy. Among all the ...  Read More

Optimizing a Two-stage Supply Chain System with Coordinated Scheduling

Alborz Hajikhani; Mahtab Panahifard; Mohsen Malekmohamadi; Azar Azadi; Jamshid Bahrami

Volume 1, Issue 4 , October 2014, Pages 250-258

  In this paper, the problem of scheduling in a two-stage supply chain system is investigated with considering coordinated scheduling of different stages. The objective is to find the similar sequences of processing tasks in two steps with two aims of minimizing the total preparation time as well as the ...  Read More

Mathematical Model for Optimization of University Courses timetabling applying the criteria of quality of instruction

Hadi Shirouyehzad; Seyyedeh Athar Mousavirad; Seyed Mojtaba Sajadi

Volume 1, Issue 4 , October 2014, Pages 259-270

  Timetabling is one of the most difficult issues in the world; this is a combinatory optimization issue and it has been proven that it is a NP-Hard issue.University Courses Timetabling is very important especially for the exams and courses. The manual solving of the Timetabling needs a broad domain of ...  Read More