the location-routing problem is a relatively new branch of logistics system. its objective is to determine a suitable location for constructing distribution warehouses and proper transportation routing from warehouse to the customer. in this study, the location-routing problem is investigated with considering fuzzy servicing time window for each customer. another important issue in this regard ...

Recent studies have shown that a non-negligible number of packets face multiple congested links on Internet paths. We investigate the impact of multiple congested links on Active Queue Management (AQM) techniques. We present the results of an ns-2 evaluation study of various AQM techniques that, in contrast to previous studies of AQM, uses a complex network topology including up to 3 congested ...

This paper develops a multi-objective eco-routing algorithm (eco- and travel time-optimum routing) for battery electric vehicles (BEVs) internal combustion engine (ICEVs) investigates the network-wide impacts of proposed Nash optimum (user equilibrium) traffic assignment on large-scale network. Unlike ICEVs, BEVs are more energy efficient low-speed arterial trips compared with highway trips. Di...

Abstract. We study message transfer in a 2− d communication network of regular nodes and randomly distributed hubs. We study both single message transfer and multiple message transfer on the lattice. The average travel time for single messages travelling between source and target pairs of fixed separations shows q−exponential behaviour as a function of hub density with a characteristic power-la...

Urban traffic networks are inherently unstable when congested. This instability causes a natural tendency towards spatially inhomogeneous vehicle distributions and less consistent and reproducible relationships between urban traffic variables. It is important to find ways to mitigate this unstable behavior since well-defined relationships between average network flow and density—the MFD—are use...

some servers are to be located at nodes of a network. demand for services of these servers is located at each node and a subset of the nodes is to be chosen to locate one server in each. each customer selects a server with a probability dependent on distance and a certain amount of benefit is achieved after giving service to the customer. customers may waive receiving service with a known proba...

Air Putih - Sei Selari crossing of Bengkalis regency has a distance 5 miles. The total number Ro-Ro vessels operating at the parallel – is 6 with rolling system where 4 operate and 2 are off / standby. trips served per day an average 20 trips. However, overall ships on fairly close trajectory not balanced optimal ship time service. As result there queue to dock. In this study used several metho...