Emergencies, especially major ones, happen fast, randomly, as well as unpredictably, and generally will bring great harm to people's life and the economy. Therefore, governments and lots of professionals devote themselves to taking effective measures and providing optimal evacuation plans. This paper establishes two different emergency evacuation models on the basis of the maximum flow model (M...

Manuscript received November 2007. Manuscript revised March 1, 2007. The authors are with the University of Ljubljana, Faculty of electrical Engineering, Tržaška c. 25, SI-1000 Ljubljana, Slovenia, The author is with Mobitel, Telecommunications services, PLC, Vilharjeva c. 23, SI-1000 Ljubljana, Slovenia. a) E-mail: [email protected] Broadband Access Network Planning Optimization Consideri...

This paper addresses procurement planning in oil refining, which has until now only had limited attention in the literature. We introduce a mixed integer nonlinear programming (MINLP) model and develop a novel two-stage solution approach, which aims at computational efficiency while addressing the problems due to discrepancies between a non-linear and a linearized formulation. The proposed mode...