样本容量

The algorithms of estimation of infinitesimal perturbation analysis for AFJQNS with infinite queueing spaces are given.

4对具有无限缓冲容量的一般AFJQNS系统，给出了无穷小摄动分析估计的算法，并采用样本路径凸分析方法，证明了此估计具有强一致性。

Based on the order statistic theory,the interval estimation of sample extremes on large and small samples is given.

本文从次序统计理论出发，建立了该样本的极大值与极小值的区间估计算法，并对大容量和小容量样本的情况分别进行了讨论，获得了在小样本情况下可用母体均匀分布获得的结果来估计样本极值区间的结论。

Assume β=1, and confidence level is 0.95, the length of normal confidence interval is compared to the length of shortest confidence interval, the results show: both absolute difference d and relative difference e are decreased by the increasing sample number n, when n≤9, e≥10%.

在假设参数β=1，置信水平为0.95的条件下，比较了常用置信区间与最短置信区间的长度，结果表明：两者长度的绝对差d和相对差e均随样本容量n的增大而减小，当n≤9时，e≥10%。

If we wish to avoid the inaccuracies caused by the size of the sample , we need to use the T distribution.

为了避免因样本容量大小而造成的误差，我们必须使用T分布。

Using large sample DNA of capacity technology, the maize high lysine content of SSR mark analyse technological platform has been established in this paper. The main results are as follows: the five comparing research methods of drawing maize DNA mark have shown that the method of iso- sulphur cyanic acid guanidine drawing maize genome DNA has the superiority of using less medicine, operating sequence more simple , faster, and costs lower , steady and reliable quality of DNA, etc..Utilizing this method , one person can draw 300-400 DNA samples each workday.lt indicates that the method can be used in SSR marker of maize,.

本文从大样本容量的DNA快速提取技术入手，初步建立了玉米高赖氨酸含量的SSR分子标记分析技术平台，获得的主要结果如下：对五种玉米DNA提取方法的比较研究认为，异硫氰酸胍法提取玉米基因组DNA，具有使用药品少、操作步骤简单、快速、成本低、DNA质量稳定可靠等优点，利用该方法，每人每个工作日可以提取300～400个DNA样品，可以在玉米SSR标记分析中应用。

This paper mesents the method that can calculate concrete compressive strength of non-batch member through its 5% fractile and revising coefficient if its material strength is in obedience to normal distribution.

本文结合工程实例提出对材料强度为正态分布的非批构件按其分布5%分位数并考虑样本容量修正系数确定构件混凝土强度推定值的方法。

On the basis of a simplified assumption that the target loci are introgressed and the genetic background are independent,the probability of selecting individuals with desired genotypes in each generation is approximately estimated combining analytical approach and simulation according to the graphic genotypes of backcrossing parents.The minimal sample size required to obtain at least one desired individual with a given probability is estimated.

在假定所需转移的目标基因座与遗传背景之间为相互独立的简化假设下，可以通过将解析方法与基于回交亲本图示基因型的模拟方法相结合，近似地估计出在每一世代中选到所需基因型的概率，进而估算出在一定概率水平下至少获得一个符合要求的个体所需的最小样本容量。

Whole blood samples drawn from 8 volunteers were diluted from 20% to 80% of the sample volume with both diluents separately.

由8名志愿者提供的全血标本分别被以上两种稀释剂稀释到占整个样本容量的20%到80%。

Finally, the case studies on suitable conservation sample size of self-pollinated and open-pollinated populations were given for reference.

文末给出了自花授粉植物和异花授粉植物群体适宜样本容量研究的个例。

The system voltage instability risk indices that are obtained using the risk assessment method include the voltage instability probability, expected load curtailment to avoid voltage instability, and the relationship between load curtailments and voltage instability probability.

该方法考虑发电机可用发电容量、电网结构及负荷的概率不确定性因素，利用蒙特卡洛模拟法抽样系统样本，并以所提电压稳定校正控制方法来判断样本的静态电压稳定性以及对样本进行电压稳定校正控制。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。