Self-catalyzed growth of GaAs nanowires are widely ascribed to the vapor-liquid-solid (VLS) mechanism due to the presence of Ga particles at the nanowire tips. Here we report synthesis of self-catalyzed GaAs nanowires by molecular-beam epitaxy covering a large growth parameter space. By carefully controlling the Ga flux and its ratio with the As flux, GaAs nanowires without Ga particles and exh...

There is increasing evidence that phenotypic plasticity can promote population divergence by facilitating phenotypic diversification and, eventually, genetic divergence. When a 'plastic' population colonizes a new habitat, it has the possibility to occupy multiple niches by expressing several distinct phenotypes. These initially reflect the population's plastic range but may later become geneti...

Adaptive neuro-fuzzy inference system (ANFIS) and genetic algorithm–artificial neural network (GA-ANN) were investigated for predicting methyl salicylate (MeSA) effects on chilling injuries and quality changes of pomegranate fruits during storage. Fruits were treated with MeSA at three concentrations(0, 0.01 and 0.1 mM) and stored under chilling temperature for 84 days. ANFIS and GA-ANN models ...

The choice of mutation rate is a vital factor in the success of any genetic algorithm (GA), and for permutation representations this is compounded by the availability of several alternative mutation operators. It is now well understood that there is no one "optimal choice"; rather, the situation changes per problem instance and during evolution. This paper examines whether this choice can be le...

Objective: While there are some Gamblers Anonymous (GA) participants who gamble again, no studies have investigated factors that differentiate GA participants who can quit repeated gambling from those who gamble again. The purpose of this study was to investigate whether individuals who participated in GA, a self-help groups, gambled again, and to identify the factors that were associated with ...

MOTIVATION Identification of transcription factor binding sites (TFBSs) plays an important role in deciphering the mechanisms of gene regulation. Recently, GAME, a Genetic Algorithm (GA)-based approach with iterative post-processing, has shown superior performance in TFBS identification. However, the basic GA in GAME is not elaborately designed, and may be trapped in local optima in real proble...

The trajectory planning of an aerial robotic manipulator system is studied using Hybrid Particle Swarm Optimization (HPSO). composed unmanned vehicle (UAV) base and a manipulator. dynamically singular. In addition, strong coupling exists between the UAV To overcome problems, in join space HPSO. HPSO combines superiorities PSO GA (Genetic Algorithm), prohibiting particles from becoming trapped l...

psychological findings show that a lower iq score than the normal level is notenough to recognize someone as mentally retarded. in addition they have visibleand specific difficulties in their adaptive behaviors. research on adaptivebehaviors is useful for those with specific needs and if mentally retarded childrenwant to adapt themselves to social life, they should improve their adaptivebehavio...

We introduce the concept of a bi-population scheme for real-coded GAs (bGAs) consisting of an explorer sub-GA and an exploiter sub-GA. The explorer sub-GA mainly performs global exploration of the search space, and incorporates a restart mechanism to help avoid being trapped at local optima. The exploiter sub-GA performs exploitation of fit local areas of the search space around the neighborhoo...

---------------------------------------------------------------------ABSTRACT-----------------------------------------------------------Several types of Rake Receivers like A-Rake, S-Rake, P-Rake, Adaptive frequency Rake, Time frequency Rake, Conventional MMSE Rake and Adaptive MMSE rake are used for WCDMA. In this paper we observed that the BER performance of the Adoptive MMSE Rake receiver gi...