• A location-allocation problem under uncertainty is investigated. two-stage stochastic programming model proposed. The mode solved by sample average approximation. Emergencies, especially those considered routine (i.e., occurring on a daily basis), pose great threats to health, life, and property. Immediate response treatment can greatly mitigate these threats. This research conducted optimize...

A teletraffic analysis for the performance evaluation of the joint use of Dynamic Resource Allocation (DRA), Channel De-Allocation (DAS), and Channel Re-Allocation (RAS) strategies in GSWGPRS networks is developed. In addition, an efficient DRA strategy with a link quality awareness policy, Channel De-Allocation and Re-Allocation policies as well as user prioritization (called DRA LA DAS RAS) i...

in this paper, we develop a capacitated location-covering model considering interval values for demand and service parameters. we also consider flexibility on distance standard for covering demand nodes by the servers. we use the satisfaction degree to represent the constraint of service capacity. the proposed model belongs to the class of mixed integer programming models. our model can be redu...

this paper proposes a bi-objective model for the facility location problem under a congestion system. the idea of the model is motivated by applications of locating servers in bank automated teller machines (atms), communication networks, and so on. this model can be specifically considered for situations in which fixed service facilities are congested by stochastic demand within queueing frame...