In this paper, a comprehensive model for hub location-routing problem is proposed which no network structure other than connectivity is imposed on backbone (i.e. network between hub nodes) and tributary networks (i.e. networks which connect non-hub nodes to hub nodes). This model is applied in public transportation, telecommunication and banking networks. In this model locating and routing is c...

In this paper, we present a mathematical programming model based on a timespace network representation for solving real-time transportation problems in forestry. We cover a wide range of unforeseen events that may disrupt the planned transportation operations (e.g., delays, changes in the demand and changes in the topology of the transportation network). Although each of these events has differ...

Nowadays, supply chain management (SCM) is an interesting problem that has attracted the attention of many researchers. Transportation network design is one of the most important fields of SCM. In this paper, a logistics network design is considered to optimize the total cost and increase the network stability and resiliency. First, a mixed integer nonlinear programming model (MINLP) is formula...

Though research on the Grid Services has progressed at a steady pace, its promise has yet to be realized. One major difficulty is that, by its very nature, the Grid Service is a large, uncensored system to which anyone may contribute. This raises the question of how much credence to give each source. The concept and definition of trustworthy of Grid Service is given. Estimating trustworthy of G...