查询词典 Jacobi

This design is model-free,based directly on pseudo Jacobi matrix derived on-line from the input and output information of the system.

该算法将其他回路的输入对于某一回路输出的耦合影响视为可测干扰，通过神经网络对这部分干扰进行估计、补偿，再结合滑模控制算法实现系统解耦。

Computer simulations validate the performance of these algorithms. And the model error of low order approximation distributed sources model, spatial frequency distributed sources model and Jocabi-Anger series expansion distributed sources model are discussed.

通过计算机仿真，验证了低阶近似分布源模型方位估计算法的性能，并且研究了分布源的低阶近似模型、空间频率模型和低阶Jacobi-Anger级数展开模型的模型误差。

If the pattern has a low rate of convergence, the time of the human and machines will be wasted and the answer are not surely attainable.So,we must look for the patterns with the high rate of convergence or try to settle some parameters of the iteration patterns (for instance the overrelaxation parameter of SOR iterative method).

本文第二章针对AOR迭代法考察了当线性方程组的系数矩阵A为(1，1)相容次序矩阵且其Jacobi特征值为纯虚数或零时的迭代收敛范围，最优参数(即最优松弛因子和最优加速因子)及与之相应的谱半径，并将此最优谱半径与相应的SOR的进行比较，定量的给出在不同条件下，AOR和SOR迭代法各有其优越性，从而圆满的解决了在这两种迭代法之间如何适当的选择最佳迭代法的问题。

Carleman不等式及其在最优控制问题中的应用.Optimal control theory of distributed parameter systems mainly includes: Pontryagin's maximum principle; controllability; Hamilton-Jacobi equation (i.e., dynamic programming equation); time optimal control, etc.In this dissertation, we establish Pontryagin's maximum principle of optimal control problems governed by some nonlinear differential equations (parabolic differential equations, elliptic differential equations and 3-dimensional Navier-Stokes equations), which in particular could have local solut...

在这篇博士论文中，我们建立了非线性微分方程(包括抛物型微分方程，椭圆型微分方程以及3维Navier-Stokes方程)最优控制问题的庞特里雅金最大值原理，特别地，这些方程可能只有局部解或存在多解(我们称这样的系统为非适定系统，相应的最优控制问题为非适定最优控制问题)，以及适定的非线性发展方程最优控制问题的庞特里雅金最大值原理；我们研究了phase-field系统的时间最优控制问题以及Boussinesq系统的局部内可控性。

Conrady [15] believed that he had found the common source of the canonical history of the infancy in the so-called "Protevangelium Jacobi", which, according to him, was written in Hebrew by an Egyptian Jew about AD 120, and was soon after translated into Greek; it should be kept in mind, however, that the Greek text is not a translation, but the original, and a mere compilation from the canonical Gospels.

conrady [ 15 ]认为他已经找到了共同的来源，典型的历史，以及起步阶段，在所谓的" protevangelium雅可比"，其中，根据他的说法，写于希伯来语一名埃及犹太人大约公元120 ，并很快就被经过翻译成希腊文，它应该铭刻在脑海里，但是，在希腊文是不是一个翻译，但原，并简单地汇编，从典型福音。

By means of two different methods, the author derives a general equation for expanding the product of two Jacobis triple products, which can be considered as the common generalization of the quintuple, sextuple and septuple product identities.

利用两种不同的方法，作者建立一个关于两个Jacobi三重积之乘积展开的广义公式，它可以看作是五重积，六重积和七重积恒等式的统一形式。

As the Jacobi Matrix of Fast One-Step Newton Error Reconstructor algorithm can be calculated previously t, the same imaging speed as back-projection algorithm can be made. The study results show that the FNOSER algorithm can obtain static image with a character of high space resolution, accurate orientation, fast imaging, and so on.

2基于牛顿法的一步误差重构算法对静态电阻抗成像技术进行了详细研究，推导出FNOSER 静态算法，快速牛顿一步误差重构算法其雅可比矩阵等可以事先计算好，从而可以获得和反投影算法类似的成像速度。

First, for the input matrix, the method adopts Jacobi singular value decomposition to get the singular value vector as the speech enhancement filter.

摘要该文将多麦克语音增强方法用于单麦克语音增强，给出了一种改进的奇异值分解语音增强方法。

Pantheism controversy 泛神论争论 In 1785, Friedrich Heinrich Jacobi published a condemnation of Spinoza's pantheism, after Lessing was thought to have confessed on his deathbed to being a "Spinozist", which was the equivalent in his time of being called an atheist.

1785年，在莱辛临终之际公开承认自己是斯宾诺莎主义者—相当于那个时候的无神论--之后，弗里德里希？海因里奇？雅可比发表了对斯宾诺莎的泛神论谴责。

The calculation of controlling unstable equilibrium point of a post fault power system is transformed to nonlinear least squares issue. The Jacobi matrix, Hessian matrix and the residue formula are derived. It is found that the residue is changed in the calculating process, so it is appropriate to use the switch method to solve the problem.

将计算电力系统故障后的主导不稳定平衡点的问题转化为最小二乘问题，推导了计算所需要的雅可比矩阵、海山阵以及计算过程的残量公式，发现残量随著计算过程而变化，因此该问题适合于采用开关算法。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。