查询词典 populations
- 与 populations 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Our results showed that the genetic diversity of Plateau Pika was relatively high and there were much larger deviations among populations based on Cyt b gene than those base...
结果显示,两种标记所得到的4个种群的遗传多样性都较高,并以Cytb基因为指标的遗传多样性水平在种群间体现出较大差异。
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In this paper,genetic diversity and differentiation of four populations of Plateau Pika from both banks of the Brahmaputra River were assessed with inter-simple sequence repeat and Cyt b gene sequences.
本实验应用ISSR分子标记和细胞色素b(Cytochrome b,Cytb)基因序列分析了雅鲁藏布江两岸高原鼠兔4个种群的遗传多样性和遗传分化。
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In this study, we present the patterns of genetic differentiation of pitcher plant populations based on chloroplast DNA haplotype analysis using the sequences of five spacers.
在本文研究中,基于利用五个间隔序列的叶绿体DNA单倍型分析,我们提出了猪笼草种群的遗传变异模式。
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He said: There are 19 populations of polar bears on the planet.
他说:在这个星球上,我们有19个北极熊种群。
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Polyandry is most typical in populations with limited amounts of resources.
最完美的例子是非洲。典型地,妇女会拥有一个或多个伴侣或丈夫,因此她的孩子会有更多的资源以生存。相反,在一夫多妻制中,男人会同时使一个以上的妻子怀孕而要用有限的资源让多个孩子更好地生存。
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In summary, the findings from this study support many of those from the adult literature and help to guide the selection of appropriate emotion measures for use with preadolescent populations.
总之,本研究成果支持了许多成人文献的结论,有助于引导针对少年人口选择合适的情绪测验。
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This article in by has in the foundation which the method studies, is easy in view of the standard genetic algorithms in the solution Vehicle Routing Problems to appear precociously, is easy to fall into the partial optimal solution shortcoming, makes the improvement to the traditional genetic algorithms, proposed the multi- populations genetic algorithms.
本文在已有方法研究的基础上,针对标准遗传算法在解决车辆路径问题上容易出现早熟,容易陷入局部最优解的缺点,对传统的遗传算法进行改进,提出了多种群遗传算法(Multiple_population Genetic Algorithms)。
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In the solution process the initialization two populations, separately will select the different overlapping variation probability, after each time will iterate the sufficiency high individual carries on the first population's in sufficiency low individual with the second population in the exchange, and will preserve each center group the optimal solution to the outstanding person population, by will solve the tradition genetic algorithms to be easy to appear precociously, will be easy to fall into the partial optimal solution question.
即在求解过程中将初始化两个种群,分别选取不同的交叉变异概率,在每一次迭代完后将第一个种群之中的适应度较低的个体与第二个种群中适应度较高的个体进行交换,并且保存每个种群的最优解到精英种群,以解决传统遗传算法容易出现早熟,容易陷入局部最优解的问题。
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In most wild populations, human predation is the predominant form of mortality, he notes.
他认为:"对大多数野生动物种群来说,人类的捕猎才是造成死亡的主要原因。"
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To take advantage of the chaotic mapping, a repetition prepotency evolution algorithm with a population initialized by chaotic numbers is developed in which the chaotic mapping is an uncommon seeding-machine to produce different initial'chromosome'populations never appeared before for PE algorithm. The combination of chaotic mapping and PE makes PECA be able to probe lots of optima rapidly and effectively owing to the quick convergence speed of PE and relatively high population diversity guaranteed by chaotic mapping.
结合混沌来初始化优势进化算法的群体成员,还设计了基于混沌初始化群体成员的循环优势进化方法,该方法在混沌保证每次优势进化绝对不同的初始群体成员的情况下,不仅具有了优势进化的快速收敛优点而且有混沌映射保证群体成员的高度多样性,从而可以快速探测很多局部最优点,大大提高了找到全局最优点的机会,用它训练神经网络预测四卤化物振动频率研究充分体现了该策略的优越性。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。