Many real-world search and optimization problems involve inequality and/or equality constraints and are thus posed as constrained optimization problems. In trying to solve constrained optimization problems using classical optimization methods, this paper presents a Multi-Objective Bees Algorithm (MOBA) for solving the multi-objective optimal of mechanical engineering problems design. In the pre...

recently full factorial design approach has been used to assess the recycling potential of a given waste. the objective of this study is to identify the significant factors and interactions involved in maximizing compressive strength of concrete when chromium waste is used as admixture. in this respect, experimental factors at two levels, which are admixture type (chromite/ chromite+ superplas...

in the present study, the effect of porosity on the cathode microstructure (50:50 wt. % lsm: ysz) of a solid oxide fuel cell (sofc) has been examined. a 3-d finite element method for mixed ionic and electronic conducting cathodes (miec) is presented to study the effects of porosity on cell performance. each microstructure was realized using the monte carlo approach with the isotropic type of gr...

background: the most common method of collecting data in any area of human health research is to apply a questionnaire. however, if extreme cautiousness is not taking into account while designing a questionnaire, the gathered data might be ineffective. therefore, the aim of the present article is to discuss some of the most important set of guidelines in designing a questionnaire.   materials a...

the author in this research has tried to link the alexander pattern language theory, which is based on human oriented and spatial factors, to landscape design, which could come to a cyclic model of “a pattern language for landscape design” in iranian schools of architecture. so, a landscape design process based on the value of human-oriented approach, which is extracted from other values, and t...

the network design problem (ndp) is one of the important problems in combinatorial optimization. among the network design problems, the multicommodity capacitated network design (mcnd) problem has numerous applications in transportation, logistics, telecommunication, and production systems. the mcnd problems with splittable flow variables are np-hard, which means they require exponential time t...