分布矩

With the correlation, the second moment of crystal size distribution in the kinetic model of literature was able to be replaced, and the parameters of nucleation and crystal growth rate were able to be directly acquired by computer program design.

利用此关联式，对文献模型中晶体粒度分布函数的二阶矩量进行替换，并结合计算机程序设计，可直接拟合得到结晶体系的成核和生长动力学参数，从而为结晶动力学模型的求解建立了一种新型算法。

By equivalent principle, formulae for all equivalent main force, main moment and shear center of the distribution shear and the result of numerical simulation were given. Finally relationship between dynamic shear and static shear was presentedatoo.

应用力系等效原理，给出分布剪力的等效主矢量、主矩和剪力中心表达式及数值模拟结果，以及动态体表剪力与静态体表剪力的关系。

Hallen type equations combined with almost entire domain polynomial representation of current distribution function are selected to attack the simulation, analysis and comparison of electromagnetic performance of the antenna array under different design parameters.

就高频地波雷达海洋环境监测的一种新颖宽窄波束、软硬件技术相结合的收发共用相控天线阵的设计，选用将Hallen方程与电流分布函数的殆全域多项式展开相结合的矩量法，分析比较了相控天线阵在不同设计参数下的电磁性能，重点分析了互耦的影响以及实施"收发共用"对阻抗匹配的苛刻要求和现有设计在该问题上的技术缺陷，得到了关于该天线阵工程设计的若干结论。

The model of programmed crystallization of SPM was proposed based on the moment transformation of the population considering the agglomeration. The optimal temperature-time curves in a batch crystallizer which maximized the terminal mean size and mean weight size can be determined from the application of the Pontryagin Maximum Principle. The calculated crystallization results heating under optimal temperature were compared with ones under linear or natural heating temperature.

根据第四章所得到的螺旋霉素晶体二次成核和晶体生长和布朗扩散引起的聚集动力学，利用第六章所描述的晶体尺寸分布的各阶矩对时间的一阶导数所构成的自封闭的一阶常微分方程组，采用庞得里亚金极大值原理，以温度为控制变量，在满足某些约束条件下，以最大平均尺寸和最大晶体重量平均尺寸为性能指标，计算出了螺旋霉素间歇结晶的最优温度—时间曲线，并同线性加热和自然方式进行了比较。

As there is not finite second order moments in alpha stable noise,the least square propagator cannot be used.

由于在α稳定分布噪声的环境下不存在有限的二阶矩，因此采用最小二乘方法来求解传播算子的算法将不再适用。

It was found that the substituent leads to thestructural changes of quinone,and then results in the charge distribution and dipolemoment changes.

研究结果表明，取代基导致醌的结构发生扭曲，并由此导致了电荷分布和偶极矩的变化。

Considering the characters of the waveform of impulsive noise, on the base of robust statistics, the thesis uses the robust statistical function mending the customary adaptive algorithm based on second order statistic, applies it to the system identification problem.

考虑到α-稳定分布波形的性质，在稳健估计理论的基础上，利用稳健估计函数改进了原有的基于二阶矩的自适应算法。

And then obtained under some conditions of probability are some sufficient conditions for moment complete convergence for independent non-identically distributed random elements in a separable Banach space which are stochastically bounded by a positive random variable.

文章在随机元序列随机有界于某非负随机变量的条件下，引入慢变化函数l和选定的函数类S，在一定的概率性条件下，得到B值独立不同分布随机元序列矩完全收敛性的充分条件，推广了有关文献的结果。

It is found that the off west coast of South Island of New Zealand earthquake has several basic characteristics as follows:① Moment magnitude is about M 7.8; Rupture duration time is about 40 s;② The static slip distribution is simple and the whole rupture process contains only one slip concentrated patch; This earthquake is mainly a unilateral rupture event with the rupture propaga ting southwestward.

结果表明。这次新西兰南岛西海岸近海地震的破裂过程具有如下基本特征：①矩震级约为M7.8；②地震主要破裂持续时间约为40 s；③滑动量在断层面上的分布比较简单，整个地震破裂只包含一个滑动量较大的区域；④这次地震基本上是一次单侧破裂事件，破裂主要朝向西南方向。

The spherical cap harmonic, rectangular harmonic and equivalent source models of satellite magnetic anomalies which derived from the same Magsat data can best express the distribution of the satellite magnetic anomalies.

根据相同的MAGSAT资料，计算的卫星磁异常冠谐模型、矩谐模型和等效源模型都能很好地表示卫星磁异常的分布。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。