Abstract The present study proposes a novel framework to optimize the reservoir operation through linking mesohabitat hydraulic modeling and metaheuristic optimization mitigate environmental impact at downstream of reservoir. Environmental function was developed by simulation. Then, utilized in structure optimization. Different algorithms including practice swarm optimization, invasive weed dif...

Voltage stability (VS) has recently become a challenging issue in many distribution networks, especially in industrial areas. The distribution networks are generally reconfigured with a view of reducing the real power loss and offering a better voltage profile for the utilities. This paper presents a new reconfiguration algorithm that aims to enhance VS of distribution networks using biogeograp...

Code Division Multiple Access is a methodology used by varied communication technologies like wireless communication, radio technology etc. it's a kind of multiplexing, that permits various signals to occupy one transmission channel, optimizing the use of available bandwidth. Different signals have different codes in this. However, generally because of a large number of users, interference resu...

The minimum crossing number problem is among the oldest and most fundamental problems arising in the area of automatic graph drawing. In this paper, eight population-based meta-heuristic algorithms are utilized to tackle the minimum crossing number problem for two special types of graphs, namely complete graphs and complete bipartite graphs. A 2-page book drawing representation is employed for ...

Ancillary services are support services which are essential for humanizing and enhancing the reliability and security of the electric power system. Reactive power ancillary service is one of the important ancillary services in a restructured electricity market which determines the cost of supplying ancillary services and finding of how this cost would change with respect to operating decisions....

an evolutionary structural optimization (eso) method is used for plastic design of frames. based on safe theorems some criteria are derived and made an effort to satisfy them during the optimization process. in this regard, equilibrium is checked and yield condition is gradually satisfied during the optimization process. in this method, the amount of used material and the stiffness for each ele...

231  Abstract—The kinematic of serial manipulators comprises the study of the relations between joint variables and Cartesian variables. We distinguish two problems, commonly referred to as the direct and inverse kinematic problems. The former reduces matrix multiplications, and poses no major problem. The inverse kinematic problems, however, is more challenging, for it involves intensive vari...