The limitations on resources of fossil fuels and their destructive effects on the environment have made renewable energy sources more attractive and between these sources, energy from biomass called bioenergy has a special place due to the wide range of resources and other benefits. The purpose of this research is to provide a bi-objective multi-period linear programming model to design the sup...

The limitations on resources of fossil fuels and their destructive effects on the environment have made renewable energy sources more attractive and between these sources, energy from biomass called bioenergy has a special place due to the wide range of resources and other benefits. The purpose of this research is to provide a bi-objective multi-period linear programming model to design the sup...

The hub location problems (HLP) constitute an important class of facility location problems that have been addressed by numerous operations researchers in recent years. HLP is a strategic problem frequently encountered in designing logistics and transportation networks. Here, we address the competitive multiple allocation HLP in a duopoly market. It is assumed that an incumbent firm (the leader...

This study aim is to find the optimal location form backup land uses from the perspective of passive defense in Urmia City. This is an applied, descriptive, and analytical study. Data collection was done using documentary data, a field study, and a questionnaire. Participants were 10 experts in this subject, who were selected purposefully. Using the analytic network process (ANP), a dynamic and...