查询词典 genetic

In order to investigate the Genetic diversity and genetic basis of rapeseed

探讨中国甘蓝型油菜遗传多样性和遗传基础。

The simulation results show that extensive mapping ability of neural network and rapid global convergence of genetic algorithm can be obtained by combining genetic algorithm and neural network.

仿真结果证明：遗传算法和神经网络的结合，可兼有神经网络广泛映射能力和遗传算法快速全局收剑等性能。

Several even ts,that affect genetic variation during ecological restoration,such as sampling error and small population size (bottleneck or founding event and subsequent inb reeding and genetic drift),were extensively discussed.

分析 了生态恢复过程中影响种群遗传变异的因素，主要有取样误差和小种群效应(主要是瓶颈或建立者事件及其以后的近交和漂变)；在进行生态恢复时也要考虑局部适应，对影响种群局部适应的因素也进行了分析。

It is difficult to insure globe convergence for regular BSS algorithms because they are easily trapped into local optimum, which can result in error of separation. This research associates genetic algorithm with traditional BSS and uses global optimize feature of genetic algorithm.

针对多数盲分离算法在多峰值情况下易陷入局部最优，难以保证全局收敛而导致分离误差的缺陷，文章将遗传算法与传统盲信号分离算法相结合，把全局收敛性能较好的遗传算法引入信号分离算法的寻优过程。

The Adaptive Genetic Alg orithm is introduced on the basis of the course of genetic evolution. The method is applied to work out the Riccati Equation.

在分析遗传进化过程的基础上，提出了一种自适应遗传算法，应用于求解黎卡提方程。

In this dissertation, An improved adaptive genetic algorithm for robust test generation is presented, which adaptively adjust genetic parameter with evolution effect and the choice of initial population is based on the feature of the robust test.

本文对标准遗传算法进行了改造，提出了一种自适应遗传算法来解决强健时滞测试生成，该算法建立了根据进化程度调整群体尺寸的启发策略来加速测试生成，并且在初始群体的选择上充分利用了强健时滞测试的特点以取得优良的初始群体。

It also presents the basic GA theory, water distribution system's mathematical modeling, one king and many queens genetic inheritance method, genetic saltation theory and some of the C++ source codes.

进而对遗传算法的基本原理、给水管网现状分析数学模型的建立及求解、一王数后的基因遗传方法和基因突变方法进行了分析，并给出实现这一方法的C语言核心代码。

The genetic parameters of leaf trait and bark trait were low while genetic parameters were higher from trait of samara and yield.

表型变异系数叶片性状和树皮性状的较低，而果实性状和产量性状的相对较高。

Data of the survey were analysed in detail and special attentions were paid with regard to the relationship between schizo- pherenia and genetic factors,mental retardation and genetic f...

在病因中，精神分裂症及精神发育迟缓与遗传因素密切相关，而神经症则主要与心理社会因素有关。

But whether the compound composed of them has suppressive effect on absence - like seizures of genetic tremor rats hasnt been reported. Furthermore, the animal models of investigating antiepileptic drugs were mostly induced by chemoconvulant or electrical stimulation. Since genetic factor is more primary in clinical epileptic patients, we used tremor rats fetched in from Japan as experimental animal models. We implanted electrodes in cortical and hippocampus of tremor rats and then recorded the electroencephalograms to observe effects of the traditional Chinese medicinal compound composed of Scolopendra, Bombyx Batryticatus, Uncaria and Arisacma Consanguineum on absence - like seizures in tremor rats.

而且以往多以化学致痫剂或电刺激等方法造模进行抗癫痫药物的研究，但在临床的癫痫患者中遗传因素占有相当大的比例，所以本实验应用了从日本引进的具有遗传性癫痫小发作的震颤大鼠作为实验动物模型，通过在震颤大鼠脑皮质和海马慢性安插电极后进行脑电图的记录，观察以蜈蚣、僵蚕、钩藤、制南星四味药为主的复方中药制剂对震颤大鼠癫痫小发作的抑制作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。