switching algorithm of blind source separation based on kurtosis is used to adaptively learn activation function of the independent component analysis ( ica) without assuming the pdf of sources.

the probability density function ( pdf) of steel corrosion ratio ( scr) evolving with service time ( st) was simulated to study the performance degradation of chloride-ingress rc member.

为获得钢筋混凝土（RC）材料性能在氯离子侵蚀作用下的衰退规律，研究了RC构件中钢筋锈蚀率（SCR）的概率密度函数（PDF）随时间演进的过程。

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these algorithms are based on minimizing a contrast function defined in terms of the kullback-leibler distance.

该类算法都以测度概率密度函数的Kullback-Leibler距离作为目标函数，用来衡量源信号各分量的独立性。

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because the logarithmic normal distribution probability density function can better describe the distribution of the st coefficients. the logarithmic normal distribution model is used for fitting the likelihood ratio probability of the st coefficients.

由于对数正态分布概率密度函数能够更好地描述ST系数的分布情况，所以采用对数正态分布模型拟合ST系数的似然比概率。

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the mean shift can bypass the priori hypothesis on the type of entire probability density function for a sample. not only has it higher performance such as reliability, robustness and flexibility, but also is it of strict convergence.

Mean Shift可以避免对样本所属的总体概率密度函数形式的先验性强制假设，它不但具有更高的可靠性、健壮性和相当的通用性，还具有严格的收敛性。

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the variation of the parameters is modeled by multivariate probability density function proposed by freeze, and the dynamic characteristics of soil are studied by monte carlo technique.

这些参数的变异性将通过Freeze提出的多变量概率密度函数来建立模型，通过Monte-Carlo技术对土的动力特性进行研究。

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calculation of probability density function based on flamelet theory

基于Flamelet理论的概率密度函数的数值计算

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the velocity field is calculated by using k? e turbulence model and the conserved scalar mixture fraction is computed from its pdf transport equation.

速度场采用κ-ε模型计算，守恒标量混合物分数的分布通过其概率密度函数（PDF）输运方程的求解得到。

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node-state independence assumption can provide a more tractable solution to delay constrained routing, especially when state information is probability density function ( pdf) of delay at each node.

这一假设为以延时为约束条件的路由问题，特别是以节点延时的概率密度函数为状态信息的QoS路由问题提供了一种较为实际的处理手段。

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this assumption is extremely important when link-delay pdf is used as state information because the calculation of path-delay pdf is np-hard without it.

在以链路延时为节点状态，以延时的概率密度函数为状态信息的QoS路由，这个假设尤其重要。没有这个假设，端到端路径延时的概率密度函数的计算是NP-Hard问题。

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a two-variable walsh characteristic function is identical to the double-walsh transform of the probability density function.

一个二元Walsh特征函数是相同于概率密度函数的二重Walsh变换。

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in nox estimating model, thermal nox formation, prompt nox formation and fuel nox formation have been calculated by probability density function ( pdf).

NO x预测模型中，包含了热力型NO x、瞬发型NO x和燃料型NO x的形成，并采用概率密度函数（PDF）方法进行计算。

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if probability density functions of stress and strength are not definite, monte carlo method is adopted.

应力、强度概率密度函数不确定，用Monte-Carlo法。

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this paper presents the concept of order random variable for the first time, and obtains the probability density function of x ( k).

本文提出了顺序随机变量的概念，并求出了X（k）的概率密度函数。

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on the basis of existing trust model, we present a trusted web services model based on β probability density function, and introduced the specific implementation method of the model.

在已有信任模型的基础上，提出了基于β概率密度函数的可信Web服务评估模型，并介绍了该模型具体的实现方法。

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the core of var method is estimation for statistical distributions of portfolio future returns.

VaR计算的核心在于估计投资组合未来回报率的统计分布或概率密度函数。

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the undetermined parameters of the polynomial and the probability density function can be determined by the first n moments of the stress variable.

多项式中的未定系数与概率密度函数中的分布参数可由应力随机变量的前n阶矩确定。

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earlier in the week turkey formally asked nato to deploy patriot surface-to-air missiles on its border with syria to boost its defense systems.

本周早些时候，土耳其正式要求北约在其与叙利亚边境部署“爱国者”地空导弹，以增强土耳其的防御系统。

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the rolling missile model with attitude-control-system is established by referring to the figuration dimension of pac-3. using this model, the combined-control-system of aerodynamics and direct force produced by lateral jets.

本文跟踪国外研究，以爱国者&3导弹外形尺寸为参考建立了具有姿态控制系统的滚转导弹模型。并以此模型来研究其气动力与姿态直接力的复合控制规律。

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this paper presents out a method of increasing penetrating probability by means of adjusting cargo projectile ejection height in the background of ballistic missile penetrating "patriot" system.

以弹道导弹突破爱国者反导弹为背景，研究了一种通过调整子母弹抛撒高度提高突防能力的方法。

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the pentagon is planning to send patriot air defense missiles and 400 troops to turkey.

安全部向土耳其派遣爱国者防空导弹和400名士兵。

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