• It was showed that high mortalities in the stages of egg(13 5%), 1st instar larvae(18 2%)and pupae(19 0%) were the main factors influencing the growth of the experimental population.

    结果表明,1幼虫期蛹期死亡率较大,分别为13 5 %、18 2 %19 0 % ,影响种群数量增长主要因子

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  • However, an experimental release of iron compounds into one such area failed to produce a thriving plankton population, even though local iron concentrations increased immediately.

    然而尽管当地铁浓度立即提高一个这样区域实验释放化合物却没有产生大量的浮游生物。

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  • 09052823】 Thank parasites for making some of our immune proteins into the inflammatory defenders they are today, according to a population genetics study in the Journal of Experimental Medicine.

    最近《实验医学杂志》上篇关于种群遗传学论文提出一个观点:人体免疫蛋白之所以今天这样的疾病抵御能力,还得归功于各种病菌

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  • Experimental results show that VPGA using logistic model population size is more efficient and requires less computation time than other modified GAs which only improve the GA operations.

    我们的实验结果表明使用离散逻辑斯蒂模型来控制种群规模VPGA能够其他从微观算子上改进遗传算法更加高效省时

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  • When the induction conditions were improved, people began to focus on whether the single phenotypic cell population as experimental objects can improve the induction efficiency or not.

    改进诱导条件同时人们开始关注单一表型的细胞作为实验对象是否有效地提高诱导效率。

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  • According to the basic principles of population genetics and experimental evidence, the Virulence Wave Law of pesticides was advanced in this paper.

    本文根据种群遗传学基本原理试验证据提出农药毒力波动规律

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  • The Experiments were carried out to study the relationship dynamics of Aphis craccivora population and Vicia faba between physiological stress on the basis of plant-insect experimental system.

    本文以蚕豆蚕豆构成人工种关系系统为对象,研究蚜虫种群动态和植物生理变化的关系。

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  • The experimental result shows that the maximum population increase index for the second generation is 66. 52, and the minimum population increase index for the fourth generation is 14.60.

    结果表明前齿肖蛸第二种群增长指数最大,达66.52;第四代种群增长指数最小14.60。

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  • Results in Ankang experimental station, these mental retardation population caused by non-specific mental retardation and endemic sub-clinical cretinism, have heritability of 86.

    结果安康试验点人群中非特异性精神发育迟滞神经型亚克汀病所致精神发育迟滞的遗传率分别为86。

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  • The experimental results also show that particle population of various grain size ranges has different effects on turbidity.

    试验发现不同粒径范围颗粒对浊度的影响程度不同

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  • Rice is an experimental model for the cereal crops research and an agriculturally important plant, providing food for more than half of the world population.

    水稻谷类作物研究实验模式有着重要农艺性状植物,它全世界一半以上的人口提供食物

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  • The simulated experimental results showed that significance t testing is highly related to population distribution effect size and sample capacities, yet rarely related to the numbers of rand…

    抽样分布样本效果大小平均值可以作为总体效果大小的估计值 ,它样本容量和抽样样本数目有密切关系

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  • The simulated experimental results showed that significance t testing is highly related to population distribution effect size and sample capacities, yet rarely related to the numbers of rand…

    抽样分布样本效果大小平均值可以作为总体效果大小的估计值 ,它样本容量和抽样样本数目有密切关系

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