查询词典 density function

The article based on practical problems finds two ways:point operation of an image and power spectral density function .

本文的研究工作从实际出发，通过对雷达图像的长期观察，总结出规律，然后根据规律找到两种过滤地物杂波的新方法：图像的点运算和图像的功率谱密度函数法。

But the uniform distribution of the spectral energies can be found in the Power Spectrum Density Function of Eurocode 8 code.

而Eurocode 8给出的设计地震动在所关注的频率范围内能量分布比较均匀。

Aiming at the power spectral density function of Clough-Penzien model, value of peak ratio of ground motion in simulation is suggested.

针对Clough-Penzien功率谱密度函数，建议了模拟多点地震动的峰值因子的取值。

Dynamic reliability under Littlewood-Paley wavelet is the biggest, dynamic reliability under modified meyerwavelet and harmonic wavelet are close. Analyzing the dynamic reliability of structure under odd exponent wavelet is very simple, it doesn't calculate Power Spectral Density function integral, it is only to calculate the square of displacement standard deviation and the square of velocity, then the dynamic reliability of structure can be concluded by max distribution. In addition the effects of upper limit is considered, when upper limit is smaller, the dynamic reliability of structure is less, that is, the damage possibility is bigger.

通过结构地震反应在小波基下的动力可靠性分析说明：无论是单自由度还是多自由度从理论上推导在这四种小波下的结构动力可靠性是可行的，而且考虑的结构地震反应都是非平稳的高斯过程，方法实现也比较容易；在Littlewood—Paley小波基下求得的结构的动力可靠度比较大，由改造的meyer小波和谐波小波求得的动力可靠度略有差异；单边指数小波下的结构动力可靠性分析非常简单，不用求功率谱函数来积分，只需求得结构地震反应的位移方差，速度方差，利用最大值分布公式就可得到结构的动力可靠时程；另外也考虑了超越界限对结构动力可靠度的影响，超越界限越小，结构的动力可靠度越小，即破坏概率越大。

Dynamic reliability under Littlewood-Paley wavelet is the biggest, dynamic reliability under modified meyerwavelet and harmonic wavelet are close. Analyzing the dynamic reliability of structure under odd exponent wavelet is very simple, it doesnt calculate Power Spectral Density function integral, it is only to calculate the square of displacement standard deviation and the square of velocity, then the dynamic reliability of structure can be concluded by max distribution. In addition the effects of upper limit is considered, when upper limit is smaller, the dynamic reliability of structure is less, that is, the damage possibility is bigger.

通过结构地震反应在小波基下的动力可靠性分析说明：无论是单自由度还是多自由度从理论上推导在这四种小波下的结构动力可靠性是可行的，而且考虑的结构地震反应都是非平稳的高斯过程，方法实现也比较容易；在Littlewood—Paley小波基下求得的结构的动力可靠度比较大，由改造的meyer小波和谐波小波求得的动力可靠度略有差异；单边指数小波下的结构动力可靠性分析非常简单，不用求功率谱函数来积分，只需求得结构地震反应的位移方差，速度方差，利用最大值分布公式就可得到结构的动力可靠时程；另外也考虑了超越界限对结构动力可靠度的影响，超越界限越小，结构的动力可靠度越小，即破坏概率越大。

The binding energy of reactants and products was determined by X-ray spectrography, the ground level charge distribution of products was caculated by density function theory of quantum chemistry.

采用X-射线光谱仪测定反应物及反应产物的结合能，用量子化学密度泛函理论计算各反应产物的基态电荷分布情况。

Using the theory of continuum mechanics, strain energy density function of sponge rubber material is founded based on Ogden model.

海绵橡胶是密封条的重要组成部分，是一种可压缩的大变形非线性弹性材料。

The density function theory computational cohesive energy further confirms the increase of stability with increasing occupancy number.

密度泛函理论计算的晶体结合能表明，随原子占位数x的增加，其结构的稳定性在增加。

Based on the peak distribution analysis of stationary stochastic process,the general expression for the peak probability density function of a stress process is described.

利用平稳随机过程峰值的概率分析，给出了计算应力峰概率密度函数的公式。

In the fourth chapter, theoretical analysis was performed by using the stochastic oscillation theory, the stochastic averaging equation and the FPK equation were deduced and some simulation results about the stationary probability density function of such system were given.

第四章利用随机振动理论，对系统进行了一些理论分析，推导了此类系统的随机平均方程与FPK方程，并初步给出了一些关于系统响应的平稳概率密度的模拟结果。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了