查询词典 sample size

A systematic introduction is given to a class of new high power goodness-of-fit test based on EDF (Empirical Distribution Function), which comes to be used in the last decade, and a study on the logistic structure and sample size modified method of this class of statistics is conducted.

系统介绍了近年来发展起来的一类以EDF统计量为基础的高效母体分布拟合优度检验方法，探讨了这类检验方法的逻辑结构和子样容量修正方式。

The examples show how to have a accordant test in interal control system by means of fixed sample size sampling and the testing of estimation of difference in variable sampling was explained by examples.

现代审计的主要标志之一是审计方法的改进，在评价内部控制系统为基础的审计中采用了统计抽样的方法，提高了审计效率，保证了

The result indicates that the BCPB method is the better approach among four bootstrap methods for process comparison due to its stable error probability and larger selection power with a fixed sample size.

所以在这四种复式抽样方法中，BCPB之复式抽样法为表现比较好的方法。

The power of detecting major gene is related with major gene heritability, allele frequency and sample size.

主基因检测功效的大小和主基因遗传力、等位基因频率、样本大小有关。

Limitations of this study include the heterogeneity of the population used and the small sample size.

这项研究的限制包括使用的群众差异性大，且样本数目较小。

Methods: The chromatographic separation was performed on a Hypersil ODS2 column(250 mm×4.6 mm, 5 μm) with mobile phases of potassium dihydrogen phosphate hexyl amine solution-acetonitrile(74∶26) for the determination of its related substances and methanol-0.05 mol/L potassium dihydrogen phosphate solution(1∶1) for the determination of dexbetamethasone sodium phosphate. The flow rate was 0.8 ml/min, the detection wavelength was 254 nm, the column temperature was 25℃ and the sample size was 20 μl.

色谱柱为Hypersil ODS2柱(250 mm×4.6 mm，5 μm)；有关物质测定的流动相为磷酸二氢钾己胺溶液-乙腈(74∶26)，含量测定的流动相为甲醇-0.05 mol/L磷酸二氢钾溶液(1∶1)；流速为0.8 ml/min，检测波长为254 nm，柱温为25℃，进样量为20 μl。

However, the diverse results reflect either the imprecision of the tests or the small sample size.

但是，结果的不同反映了测试的不精确或研究样本量小。

In this study, a parallel molecular dynamics simulation is applied to investigate the effects of sample size, indentation depth and the radius of indenter tip on the nanoindentation measurement of monocrystalline copper.

本研究系利用平行化分子动力模拟探讨不同的试体尺寸、压痕深度与探针尖端半径对於单晶铜奈米压痕试验结果之影响。

The sidelobe has many ripples in condition of small training sample size and the diagonal loading technology is applied to this method, which improve the convergence speed of sidelobe. We also study the pattern control of area array. The effectiveness of this new method is illustrated by the designed simulations.5. Adaptive sidelobe cancellation is a important part of phase array radar. To realize low sidelobe and suppressing the interferer the antenna technique and signal process are combined.

用对角加载方法解决了小快拍数下收敛速度慢的问题，并仿真给出了加载量的选取范围，对面阵的自适应方向图控制文中也进行了详细讨论，阵列幅相误差和互耦误差对自适应方向图控制影响，文中也给出了仿真和分析。5、自适应旁瓣相消是相控阵雷达技术的一个重要组成部分，它将天线技术与信号处理技术结合在一起，使相控阵天线实现超低副瓣，达到抗有源干扰的目的。

When sample size is not large, conclusion shows that the precision of the interval estimation of parameter is remarkably increasing if the data from Tables in this paper are used.

通过计算比较，得出结论：在小样本的情况下，用本文所求的置信区间作为未知参数的区间估计将会使估计精度得到显著的提高。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。