A multi-objective mathematical planning model for a multi-level sustainable supply chain considering market boom and downturn

Ali Goodarzi; Ali Mostafaeipour; Hasan Hosseini Nasab; Yahia Zare Mehrjerdi

Volume 10, Issue 2 , December 2023, , Pages 19-41


  A multi-level sustainable supply chain is related to a system that includes all activities necessary to transfer and supply materials and services from the producer to the consumer. In this system, the focus is on providing materials and services based on a number of objectives, such as reducing costs, ...  Read More

Multi-objective scheduling and assembly line balancing with resource constraint and cost uncertainty: A “box” set robust optimization

Javad Behnamian; Zeynab Rahami

Volume 7, Issue 1 , June 2020, , Pages 220-232


  Assembly lines are flow-oriented production systems that are of great importance in the industrial production of standard, high-volume products and even more recently, they have become commonplace in producing low-volume custom products. The main goal of designers of these lines is to increase the efficiency ...  Read More

A Simulation Approach to Evaluate Performance Indices of Fuzzy Exponential Queuing System (An M/M/C Model in a Banking Case Study)

Mohammad Ehsanifar; Nima Hamta; Mahshid Hemesy

Volume 4, Issue 2 , December 2017, , Pages 35-51


  This paper includes a simulation model built in order to predict the performance indicessuch aswaiting time by analyzing queue’s components in the real world under uncertain and subjective situation. The objective of this paper is to predict the waiting time of each customer in an M/M/C queuing ...  Read More

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 , December 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