Analysis of the simultaneous effects of renewable energy consumption and GDP, using Dynamic Panel Data

A. M. Kimiagari; F. Lotfian Delouyi; M. Shabani

Volume 3, Issue 1 , June 2016, Pages 1-14

  In the recent years, renewable energy sources are an important component of world energy consumption. GDP is one of the main measures of a country’s economic activity. Most of the studies examine the impact of renewable energy consumption on GDP with single equation model and the others use dynamic ...  Read More

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 , June 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

Electromagnetism-like Algorithms for The Fuzzy Fixed Charge Transportation Problem

F. Gholian Jouybari; A. J. Afshari; M. M. Paydar

Volume 3, Issue 1 , June 2016, Pages 39-60

  In this paper, we consider the fuzzy fixed-charge transportation problem (FFCTP). Both of fixed and transportation cost are fuzzy numbers. Contrary to previous works, Electromagnetism-like Algorithms (EM) is firstly proposed in this research area to solve the problem. Three types of EM; original EM, ...  Read More

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 , June 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

A stochastic model for project selection and scheduling problem

F. Molavi; E. Rezaee Nik

Volume 3, Issue 1 , June 2016, Pages 77-88

  Resource limitation in zero time may cause to some profitable projects not to be selected in project selection problem, thus simultaneous project portfolio selection and scheduling problem has received significant attention. In this study, budget, investment costs and earnings are considered to be stochastic. ...  Read More

A knowledge-based NSGA-II approach for scheduling in virtual manufacturing cells

M. Zandieh

Volume 3, Issue 1 , June 2016, Pages 89-107

  This paper considers the job scheduling problem in virtual manufacturing cells (VMCs) with the goal of minimizing two objectives namely, makespan and total travelling distance. To solve this problem two algorithms are proposed: traditional non-dominated sorting genetic algorithm (NSGA-II) and knowledge-based ...  Read More