查询词典 empirical distribution function

In this paper,using non-linear equation groups indicating the relations between liquid rocket engine performances and interference factors,the engine performances are simulated by MonteCarlo method' A empirical distribution curve and statistical average value and believalbe range are obtained.

利用液体火箭发动机性能参数和内外干扰因素之间的一组随机非线性方程组，采用Monte－Carlo方法对发动机性能参数进行了模拟。

The empirical formula can also be used to evaluate hysteresis loss as well as the temperature distribution of the yoke ring.

根据经验公式，对计算磁滞损耗的方法和在计算温度分布中的应用进行了介绍。

For lanthanides in Am at pH 2. 7～2. 8. According to empirical distribution ratio model and proposed calculation method, flow sheets are proposed for the separation of Am and fission product lanthanides from power reactor and production reactor waste respectively.

7级萃取、3级洗涤2级反萃的多级逆流分馏萃取实验表明HBTMPDTP-TBP-煤油能够很好地萃取分离镅和镧系元素，在pH值为2.7～2.8时，镧系元素中镅的分离系数大于5×10〓，镅中镧系元素的分离系数大于2.5×10〓。

An empirical distribution ratio model for Am and lanthanides in HBTMPDTP extraction has been established and a method of process parameters calculation has been proposed.

建立了HBTMPDTP萃取分离Am与镧系元素的经验分配比模型以及萃取工艺参数的计算方法，计算值与实验值吻合较好。

At the beginning, an engineering method called semi-empirical reliability estimation method is introduced. Then, a detailed introduction of the bootstrap method, which has been widely applied to small sample reliability assessing since it was proposed in 1979, is made immediately. At last, a promoted virtual sample expanding method, that the reliability test sample size is expanded from 2-3 to 10, is proposed on the basis of predecessors research results. And the new method associated with bootstrap method is used to assess the test life lower limit in the case of logarithmic normal distribution.

首先阐述了处理极小子样可靠性评估问题较合理的一种工程处理方法—半经验可靠性评估方法，随后详细介绍了近年来在小子样可靠性评估领域发展迅速的Bootstrap方法，最后在前人研究成果的基础上提出了将样本数从n=2～3虚拟增广至n=10的虚拟增广样本推广方法，将该方法应用于服从对数正态分布的寿命总体，利用Bootstrap方法得到了试验寿命下限的估计，并与已有的半经验可靠性评估方法的结果作了比较分析。

It compares the Lorenz curve of a ranked empirical distribution with the line of perfect equality .

它比较了洛伦兹曲线的实证排名分布线的完全平等。

The empirical results show that different index returns series have different marginal distribution.

结果表明，不同板块的指数收益率序列具有不同的边缘分布，各序列间有很强的正相关关系，条件相关具有时变性，各序列间相关性的变化趋势极为相似。

Empirical Bayes estimates of steady-state availability in exponential distribution model;2. Using vector Markov process theory and Laplace transform method,we obtain the Laplace transform of the reliability,the mean time to first failure,the steady-state availability and the steady-state failure frequency and so.

利用向量Markov过程理论和Laplace变换的方法，求出了系统可靠度的Laplace变换，系统首次故障前平均时间的表达式，系统的稳态可用度和稳态故障频度等可靠性指标；此外，还通过数值比较考察了系统参数对系统稳态可用度的影响，并对系统进行了效益分析。

We uses a farther modified Meteorological Draught Severity Model ta calculate summer (6-8 months) moisture anomaly index Z far Changbai mountains area which based an the Palmer Draught Severity Model and the modified Palmer Draught Severity Model corrected by Liu Weiwei etc. and then the spatial temporal distribution of the Z values is analyzed by empirical orthogonal funtion expansion.

根据帕默尔旱度模式和刘巍巍等人修正的帕默尔旱度模式，以长白山地区20个气象站历年气温和降水资料建立长白山地区的旱涝指数模式，计算了能够反映长白山地区干湿变化的20个气象站1960-2005年夏季（6-8月）逐月水分距平指数。

Further, considered the considerable uncertainty of current sample variance, a reliability estimation method based on t-distribution theory and empirical logarithmic standard deviation is proposed.

进一步考虑到工程实际中当次可靠性试验的样本方差具有较大不确定性的因素，提出了基于对数标准差经验值的t分布可靠性评估方法。

Smoking cigarettes adds to the Computer Desk Computer manufacturer computer mouse Computer Computerized collar knitter machine Conduit Bodies construction board Container Bag Control Arm Cooking Thermometer general levels of air pollution as well as damaging our health.

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。

He is one of my favorite actors.

他是我最喜欢的男演员之一。