查询词典 truncated distribution

Then, on the basis of considerable amounts of numerical tests and statistical analysis for truncated generations, the distribution law is revealed with an example of float type genetic algorithms utilized frequently in engineering optimization.

然后，以工程优化中常用的浮点型遗传算法为例，通过大量的数值试验和统计分析揭示了遗传算法进化截止代数分布的规律。

In this course three-dimensional finite element method is used to calculate the stress and deformation of the metal structure.The influence coefficient method is adopted to obtain the expression between the load and the offect ,and form the limit state equation of all failure mode.Finally.corresponding reliability indices are obtained with the JC method under truncated distribution.

在此过程中，运用三维有限元计算了门机金属结构的应力和变形，采用影响系数法，建立起荷载与荷载效应的显式关系，进而建立了各失效模式的极限状态方程，再用可截尾处理的JC法求出相应的可靠指标。

Stability probability; the uncertainty of load model; truncated normal distribution; Gram-Charlier progression.

稳定性概率；动态安全域；负荷模型不确定性；截断正态分布；Gram-Charlier级数。

There maybe be some differences between the original assumption PDF to the new one generated by sparse data input and we suggested to using the truncated probability distribution function for modeling this situation.

针对此分布不匹配的问题，本研究首先提出使用截尾分布机率密度函数(truncated probability distribution function)的概念来近似。

The empirical Bayes estimation for parameters of the one-side truncated distribution family with convergence rate which can close to 1 arbitrarily is investigated using NA samples and an example that satisfies the conditions of theorem is given.

运用NA样本密度函数核估计构造了一类截断型分布族参数的经验Bayes估计，建立了它的收敛速度，证明了在适当条件下该收敛速度可以任意接近于1，文中还给出了适合定理条件的例子。

The viscous fingering in self-affine Sierpinski carpet, based on the assumption that bond radii are truncated Rayleigh distribution, is simulated by means of successive over-relaxation techniques.

在自仿射Sierpinski地毯中，认为喉管半径服从截断瑞利分布，采用逐次超松弛技术，模拟了自仿射Sierpinski地毯中的粘滞指进。

Truncated normal distribution with population means from 100,000 to 2,500,000 and different standard deviations from 2/3, 2/4, 2/4,2/5,2/6 to 2/7 of means, were used to estimate the cumulated frequency of the SCC of bulk milk.

假设场总乳体细胞数平均值变数源自一截去单尾的常态分布，模拟族群平均为 10万到 250万，标准偏差为平均值的 2/3， 2/4 ，2/5， 2/6至 2/7，来估计总乳的SCC 累积频率。

Since the Dirichlet distribution is the conjugate prior of the multinomial distribution, the beta distribution is the conjugate prior of the binomial distribution.

自的Dirichlet分布是共轭先验的多项分布， Beta分布是共轭先验的二项分布。

So Beta distribution could be used as a unified distribution to denote practical optical measurement distribution. Solving the problem of calculating Beta distribution parameters and characteristic value.

在光学测量领域做了大量实验统计工作的基础上，用Beta分布表示实际测量工作中遇到的多种非正态分布，验证了Beta分布统示表示实际测量分布的方法可行。

We used NCAR/NCEPT anew analyze data and the method of bilinearity insert to fix on profile distribution of several physical field in the air on observation point and the stream field of 700hPa. We primary discussed the possible mechanism to influence aerosol size distribution.The atmospheric condition of 1000hPa~700hPa level had great influence on aerosol size distribution, and influence on coarse particle mainly below 850hPa level. The horizontal wind velocity of 925hPa level is a primary gene which contributed to coarse particles in the air. Vorticity profile especially below 700hPa level is a key gene to influence diffuse and convergence of local aerosol. The air vertical motion velocity greatly influenced aggregation and remove of aerosol particles. The vertical distribution of air temperature mainly influenced vertical transportation of aerosol.

利用NCAR／NCEP逐日再分析资料，通过双线性插值方法，确定观测点上大气中几个物理量的廓线分布；及700hPa的流场，初步探讨了影响大气中气溶胶粒子谱分布的可能机制： 1000hPa～700hPa的大气状况对气溶胶粒子谱分布影响显著，对粗粒子气溶胶的影响显著的主要集中在850hPa以下；925hPa的水平风速是影响大气中粗粒子气溶胶的一个主要因子；涡度廓线(尤其是700hPa左右及以下的涡度廓线)是影响局地气溶胶的扩散的一个关键因子；大气的垂直运动速度对气溶胶的聚合及移出影响较大；大气温度的垂直分布主要影响气溶胶垂直输送。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。