This paper presents a multiobjective continuous covering location problem in fuzzy environment. Because of uncertain covering radius, possibility of covering concept is introduced.Since, the uncertainty may cause risk of uncovering customers; the problemis formulated as a risk management model. The presented model is an extension of the discrete covering location models tocontinuous space. Two ...

C ontinuous peripheral nerve blocks offer the potential benefits of extended site-specific postoperative analgesia, few side effects, improved patient satisfaction , and accelerated functional recovery after extremity surgery. 1 Continuous peripheral nerve blocks provide superior analgesia compared with intravenous patient-controlled analgesia and a lower incidence of side effects compared with...

Covering problem tries to locate the least number of facilities and each demand has at least one facility located within a specific distance.This paper considers a cross entropy algorithm for solving the mixed integer nonlinear programming (MINLP) for covering location model.The model is solved to determine the best covering value.Also, this paper proposes aCross Entropy (CE) algorithm consider...

A natural extension of point facility location problems are those prob lems in which facilities are extensive i e those that can not be represented by isolated points but as some dimensional structures such as straight lines segments of lines polygonal curves or circles In this paper a review of the existing work on the location of extensive facilities in continuous spaces is given Gaps in the ...