today according to the competitive conditions, companies try to reduce their inventory level to diminish the costs. in companies inventory management and control should establish a balance between inventory level of spare parts, cost and the risk that arising from absence of part when is needed. it is clear that this level of spare parts inventory affected by facility characteristics and its re...

In this paper, an efficient and comprehensive hybrid intelligent technique for the optimal placement of phasor measurement units (PMUs) is proposed to minimize the number of PMU installation subjected to full network observability. Three main purposes of PMUs output synchronous measurements are monitoring, control, and protection of power system. We have combined Binary Imperialistic Competitio...

In recent years, significant research efforts have been devoted to the optimal planning of power systems. Substation Expansion Planning (SEP) as a sub-system of power system planning consists of finding the most economical solution with the optimal location and size of future substations and/or feeders to meet the future load demand. The large number of design variables and combination of discr...

We apply some variants of evolutionary computations to the Hop eld model of associative memory. In this paper, we use the Breeder Genetic Algorithm (BGA) to explore the optimal set of synaptic weights with respect to the storage capacity. We present the BGA has tremendous ability to search a solution in the massively multi-modal landscape of the synaptic weight space. The main goal of this stud...

The problem of target assignment is crucial in the air defense operations, and the optimum target allocation scheme can greatly enhance the performance of the air defense missile weapon system. Based on the general mathematical model of the target assignment problem and the principle of assignment, this paper analyses cultural genetic algorithm (CGA) combined with the reversal operation, and pr...