1. Project scheduling optimization for contractor’s Net present value maximization using meta-heuristic algorithms: A case study

Mostafa Zaree; Reza Kamranrad; Mojtaba Zaree; Iman Emami

Volume 7, Issue 2 , Summer and Autumn 2020, , Pages 36-55


  Today's competitive conditions have caused the projects to be carried out in the least possible time with limited resources. Therefore, managing and scheduling a project is a necessity for the project. The timing of a project is to specify a sequence of times for a series of related activities. According ...  Read More

2. Using revenue management technique to allocate the capacity in reliable hub network design under uncertain air passenger traffic

Mojtaba Salehi; Hamid Tikani

Volume 7, Issue 2 , Summer and Autumn 2020, , Pages 139-164


  This paper introduces a two stage stochastic programming to address strategic hub location decisions and tactical flight routes decisions for various customer classes considering uncertainty in demands. We considered the airline network with the arc capacitated single hub location problem based on complete–star ...  Read More

3. Solving the Vehicle Routing Problem with Simultaneous Pickup and Delivery by an Effective Ant Colony Optimization

M. Sayyah; H. Larki; M. Yousefikhoshbakht

Volume 3, Issue 1 , Winter and Spring 2016, , Pages 15-38

  One of the most important extensions of the capacitated vehicle routing problem (CVRP) is the vehicle routing problem with simultaneous pickup and delivery (VRPSPD) where customers require simultaneous delivery and pick-up service. In this paper, we propose an effective ant colony optimization (EACO) ...  Read More