查询词典 rectangular matrix

The thermal residual stress is a type of short-rang internal stress between matrix and whisker in composite. It was verified that the thermal residual stress could not be released and could not cause the macro-strain, although the diffraction angle of matrix was shifted in composite.

复合材料中热残余应力是基体与晶须之间的短程内应力，试验证实热残余应力虽可引起基体衍射峰位移动，但不会造成复合材料宏观应变而自然释放。

By correcting noise variance matrix of system state of constant turn model wit h maneuvering frequency coefficient and angular accelerˉ ation variance, the turning model set with different angular was d esigned, the model probability matrix was given. An interactive multiple model algorithms with adaptiveˉturning model w ere built.

通过机动频率系数和角加速度方差修正常速转弯模型的系统状态噪声方差矩阵，设计了不同角速率的转弯模型集，给出了相应模型的状态转移概率，建立了一种自适应转弯模型的交互多模型算法。

Convergence of semi-iterative method was discussed by Varga, Young and HU Jia-gan when iterative matrix is symmetric. In this paper, using Chebyshev polynomial and its properties, we obtain the convergence of semi-iterative method for a class of antisymmetric iterative matrix.

本文依据Varga， Young，胡家赣书中介绍的迭代矩阵为对称阵时，半迭代法的收敛性的理论，以Chebyshev多项式及其基本性质作为基本工具，对一类反对称迭代矩阵，研究其半迭代法的收敛情况。

The least norm solutions of symmetric and skew antisymmetric matrix equations (A~TXA, XA — YAD)=(D, 0)are also considered. 3. The least-squares solutions and the least norm solutions of the quaternion matrix equations AX = B and XD = E are studied by using

借助四元数的复表示方法，研究四元数矩阵方程组AX=B，XD=E的最小二乘问题和极小范数解的问题，并对主子阵约束下的方程组的解进行了讨论，得到了它们的显式表示。

Robust aposteriori L〓 filtering to noise inputting matrix uncertainty system can be reduced to the solution of a linear matrix inequality too.

对噪声输入矩阵不确定性情况下的鲁棒L〓验后滤波，本文的解法也归结为一凸优化问题，可有效的求解。

By using generalized inverse of matrix,the sufficient condition of "pole assignment theorem"is proved;and the general expression containing arbitrary parameter is obtained for the feedback of gain matrix.

该方法利用矩阵广义逆理论，证明极点配置定理的充分性条件，并得到反馈增益矩阵的一个含有任意参数的一般表达式。

At first,local connectivity matrix is derived from the modified fuzzy Gabriel graph,then this matrix and the assumptive prototype of global data distribution are used to construct a new clustering performance criterion.

首先用改进的模糊Gabriel图得到样本数据的局域连接矩阵，然后它和数据的全局分布原型假设一起构造新的聚类准则。

Second, when the system does not satisfy such detectability but satisfy other conditions, there is a gain matrix ensuring the asymptotic convergence of the observer error, and the sufficient conditions and the method of solving gain matrix are obtained similarly.

其次， 当系统不满足该可检测性，但满足其它条件时，仍存在使得观测误差渐近收敛的增益矩阵，并类似地得到了增益矩阵满足的充分性条件和计算方法。

Chapter 9: We report a large quantity of numerical experiments of 13 different algebraic multigrid algorithms for solving the Poisson equation, anisotropic equation, equation with cross-derivative terms, general matrix problems with large off-diagonal positive entries, biharmonic equation, Toeplity matrix, elasticity systems, finite element discretization of the Laplacian and even 3D problems. Particular attention is focused on asymptotic convergence factors and CPU-time consumed. Numerical results for many different types of practical problems demonstrate the efficiency and robustness of the proposed algebraic multigrid methods.

第九章：在各种代数多重网格算法的基础上，进行了大量的数值试验，具体给出了十三种不同的代数多重网格方法求解泊松方程，各向异性方程，带混合导数项的方程，带有大的非对角正元素的一般矩阵问题，重调和方程，托普利兹矩阵，弹性力学方程组，拉普拉斯算子的有限元离散，甚至三维问题的较为丰富的数值结果，重点关注它们的渐近收敛因子和所需的CPU时间，来源于不同类型问题的计算结果既为代数多重网格理论分析和算法的改进提供了很实用的资料，同时也证实了本文给出的代数多重网格算法的效绩和稳健性。

In our study on the quantitative Auger analysis three main matrix effects, the escape depth λ, atomic density n and the backscattering factor R, which is the most important matrix parameter, are considered.

本文对信息深度范围内可视作均匀的多元合金，提出一种新的定量俄歇分析方法。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样