Genetic diversity generally underpins population resilience and persistence. Reductions in population size and absence of gene flow can lead to reductions in genetic diversity, reproductive fitness, and a limited ability to adapt to environmental change increasing the risk of extinction. Island populations are typically small and isolated, and as a result, inbreeding and reduced genetic diversi...

a gyroscope is a device for measuring or maintaining orientation , based on the principles of conservation of angular momentum . the device is a spinning wheel or disk whose axle is free to take any orientation. this orientation changes much less in response to a given external torque than it would without the large angular momentum associated with the gyroscope's high rate of spin. since exter...

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...

Distributed Probabilistic Model-building Genetic Algorithms (DPMBGAs) are a new type of Genetic Algorithm. In the DPMBGA, when the offspring are generated, Principal Component Analysis (PCA) considers the correlations among the design variables. Moreover, this model applies the island model to maintain population diversity. The effectiveness of DPMBGA has been demonstrated through optimization ...

Abstract In microgrids (MG) with a high penetration of renewable energy sources (RES) power converters are used to regulate the produced single voltage and frequency reference value across MG. Adequate incorporation an LC filter at output electronic devices allows attenuation harmful harmonics that can be introduced MGs bus. By traditional methods, values calculated by means rating, switching f...

Accurate and reliable protein structure prediction PSP eludes researchers primar ily because the search for the minimum energy conformer is computationally intractable This research discusses the application of several distinct genetic algorithms GAs as optimum seeking techniques for PSP problems The e ectiveness and e ciency of each algorithm is studied empirically The speci c algorithmic desi...

The co-flow jet is a zero-net-mass-flux active flow control strategy and presents great potential to improve the aerodynamic efficiency of future fuel-efficient aircrafts. present work integrate technology into shape optimization further realize co-flow-jet airfoil performance. results show that maximum energy ratio lift augmentation drag reduction increased by 203.53% ( α = 0°) 10.25% 10°) at ...

In this paper, we introduce MRMOGA (Multiple Resolution Multi-Objective Genetic Algorithm), a new parallel multi-objective evolutionary algorithm which is based on an injection island approach. This approach is characterized by adopting an encoding of solutions which uses a different resolution for each island. This approach allows us to divide the decision variable. space into well-defined ove...