the rapid and intensive progress in science and technology in the world, despite its abundant advantages and gifts of welfare and comfort for the mankind, in many ways, it has pushed human security to face grave tragic events. to give an example, the progress in chemistry before the great war, made it possible to produce and use toxic gases including phosgene gas causing enormous deaths of both...

One of the main principles of the passive defense is the principle of site selection. In this paper, we propose a multiple objective nonlinear programming model that considers the principle of the site selection in terms of two qualitative and quantitative aspects. The purpose of the proposed model is selection of the place of facilities of a system in which not only it observes the dispersion ...