Increasing of net energy storage (Q net) and discharge time of phase change material (t PCM), simultaneously, are important purpose in the design of solar systems. In the present paper, Multi-Objective (MO) based on hybrid of Particle Swarm Optimization (PSO) and multiple crossover and mutation operator is used for Pareto based optimization of solar systems. The conflicting objectives are Q net...

In this paper, optimal design of arch dams is performed under frequency limitations. Colliding Bodies Optimization (CBO), a recently developed meta-heuristic optimization method, which has been successfully applied to several structural problems, is revised and utilized for finding the best feasible shape of arch dams. The formulation of CBO is derived from one-dimensional collisions between bo...

This work systematically analyzes and optimizes the process of electron beam melting for pure copper. It is shown that, reliable manufacturing, preheating temperature should be optimized to avoid porosity as well part deformation. The fully focused prevent shrinkage voids (correlated negative defocusing) material spattering (linked positive defocusing). Smoother surfaces from lower hatch spacin...