1. Bi-objective robust optimization model for configuring cellular manufacturing system with variable machine reliability and parts demand: A real case study

Hiwa Farughi; Sobhan Mostafayi; Ahmadreza Afrasiabi

Volume 6, Issue 2 , Summer and Autumn 2019, , Pages 120-146


  In this paper, a bi-objective mixed-integer mathematical model is presented for configuration of a dynamic cellular manufacturing system. In this model, dynamic changes and uncertainty in parts demand and machines reliability are considered. The first objective function minimizes total costs and the ...  Read More

2. Robust economic-statistical design of the EWMA-R control charts for phase II linear profile monitoring

Ali Salmasnia; Ali Tavakoli; Maryam Noroozi; Behnam Abdzadeh

Volume 6, Issue 1 , Winter and Spring 2019, , Pages 46-67


  Control charts are powerful tools to monitor quality characteristics of services or production processes. However, in some processes, the performance of process or product cannot be controlled by monitoring a characteristic; instead, they require to be controlled by a function that usually refers as ...  Read More

3. A Bootstrap Interval Robust Data Envelopment Analysis for Estimate Efficiency and Ranking Hospitals

M. Rabbani; N. Heidari; H. Farrokhi Asl

Volume 3, Issue 2 , Summer and Autumn 2016, , Pages 107-122

  Data envelopment analysis (DEA) is one of non-parametric methods for evaluating efficiency of each unit. Limited resources in healthcare economy is the main reason in measuring efficiency of hospitals. In this study, a bootstrap interval data envelopment analysis (BIRDEA) is proposed for measuring the ...  Read More

4. Solving a robust capacitated arc routing problem using a hybrid simulated annealing algorithm: A waste collection application

E. Babaee Tirkolaee; M. Alinaghian; M. Bakhshi Sasi; M. M. Seyyed Esfahani

Volume 3, Issue 1 , Winter and Spring 2016, , Pages 61-76

  The urban waste collection is one of the major municipal activities that involves large expenditures and difficult operational problems. Also, waste collection and disposal have high expenses such as investment cost (i.e. vehicles fleet) and high operational cost (i.e. fuel, maintenance). In fact, making ...  Read More

5. Coordination of green supply chain network, considering uncertain demand and stochastic CO2 emission level

H. Golpira; M. Zandieh; E. Najafi; S. Sadi Nezhade

Volume 2, Issue 2 , Summer and Autumn 2015, , Pages 43-54

  Many supply chain problems involve optimization of various conflicting objectives. This paper formulates a green supply chain network throughout a two-stage mixed integer linear problem with uncertain demand and stochastic environmental respects level. The first objective function of the proposed model ...  Read More