A model for locating services in grid is described here. It integrates the Grid framework OGSA (Open Grid Services Architecture) [1], using VO (Virtual Organization) [2] concept to divide logic grid services into different organizations based on its establishing purpose and requirement on resources sharing and services providing. The CARP hash-based information caching mechanism and a hierarchy...

mobile-ad-hoc-networks (manets) are self-configuring networks of mobile nodes, which communicate through wireless links. the infrastructure of a mobile ad hoc network (manet) has no routers for routing, and all nodes must share the same routing protocol to assist each other when transmitting messages. the main issues in manets include the mobility of the network nodes, the scarcity of computati...

The refugee crisis is one of the major challenges modern society. influxes refugees are usually sudden and in sheer need services such as health care, education safety. Planning public under an imminent humanitarian requires simultaneous strategic operational decisions. Inspired by a real-world problem that Red Crescent facing Southeast Turkey, we study locating camps planning transportation se...

today, one of the new technologies in the modern era is vehicular ad-hoc network which has takenenormous attention in the recent years. because of rapid topology changing and frequent disconnectionmakes it difficult to design an efficient routing protocol for routing data between vehicles, called v2v orvehicle to vehicle communication and vehicle to roadside infrastructure, called v2i. designin...

In this paper, a sustainable closed-loop supply chain problem is modelled in conditions of uncertainty. Due to the COVID-19 pandemic situation, designed network seeks deliver medical equipment hospitals on time within defined window prevent overcrowding and virus transmission. order achieve suitable model for designing network, important decisions such as locating potential facilities, optimal ...

Modern communication networks are able to respond to randomly uctuating demands and failures by allowing buuers to ll, by rerouting traac and by real-locating resources. They are able to do this so well that, in many respects, large-scale networks appear as coherent, almost intelligent, organisms. The design and control of such networks present challenges of a mathematical, engineering and econ...

Abstract In this paper, we focus on a location-routing problem (LRP) in the dairy industry. This consists of locating cold storage warehouse, from which vehicles limited capacity are dispatched to serve given number supermarkets with uncertain service requirements, and determining order served by each vehicle. First, LRP is solved using classical approach based deterministic model where i.e. cu...

The location routing problem with simultaneous pickup and delivery (LRPSPD) is a new variant of the location routing problem (LRP). The objective of LRPSPD is to minimize the total cost of a distribution system including vehicle traveling cost, depot opening cost, and vehicle fixed cost by locating the depots and determining the vehicle routes to simultaneously satisfy the pickup and the delive...