in general, energy prices, such as those of crude oil, are affected by deterministic events such as seasonal changes as well as non-deterministic events such as geopolitical events. it is the non-deterministic events which cause the prices to vary randomly and makes price prediction a difficult task. one could argue that these random changes act like noise which effects the deterministic variat...

background and aims: nowadays heavy metals are the environmental priority pollutants and are becoming as the most serious environmental problems. in recent years removing those from diverse industrial effluents and metal cleaning have been studied. the aim of the present study was to investigate the different methods for cooper removal of cooper ions from industrial wastewater. methods: this st...

decision making about outsourcing or insourcing of manufacturing activities is a type of multiple criteria decision making (mcdm) problem, which requires considering quantitative and qualitative factors as evaluation criteria simultaneously. therefore, a suitable mcdm method can be useful in this area as it can consider the interactions among quantitative and qualitative criteria. the analytic ...

Distributed Genetic Algorithm (DGA) is one of optimization methods and very suitable to parallel computers. Therefore, DGA is a very effective tool in high performance computing. In this paper, we discussed DGAs for designing truss structures. Most of the real world problems in optimization problems have constraints. Since DGA is an algorithm for problems without constraints, the fitness functi...