查询词典 bordered matrix

Although the infinite Toeplitz matrix can not be dealt with the methods for finite matrix, it is found that its spectral is continuous by a series of pertinent elementary transformations for infinite matrices.

虽然这类矩阵不可以用有限阶矩阵的方法处理，但通过一系列相伴的初等变换，发现它们的特征值是连续变化的，获得特征向量的递推公式，从而得到这些算子的谱的连续性的一个直观证明。

For the condensed dynamic stiffness matrix in finite models which have finite number of freedom and any dynamic stifmess matrix of infinite system, the element of them is a transcendental function of eigenfrequency. And therefore transcendental eigenvalue problem is needed to be solved in order to get the natural frequency and modes of vibration.

对于有限自由度系统的缩聚动刚度矩阵和无限自由度系统的任何动刚度矩阵，其元素是频率的超越函数，因此求解结构固有频率及其振型归结为求解超越特征值问题。

By solving a axial-symmetrical boundary value problem consisting of a infinite solid and an isolated spheriodal particle embedded in an infinite matrix, some interesting results are found as follow:(1) at the micron scale, the smaller the particle is, the higher the stresses at the matrix/inclusion interface and within the particle are;(2) this size effect is more remarkable with decreasing the stress triaxiality and increasing the remote equivalent strain.

通过对三轴应力下含椭球夹杂的无限大体边值问题的分析，结果表明：(1)在微米尺度下，夹杂尺寸越小，夹杂/基体界面的法向应力、剪切应力和夹杂内部主拉伸方向的应力越高。

The characteristic of this method is that the analysis can be complcted by solving the lower order matrix and it is not need to assemble the total stiffness matrix, therefor, the inner memory capacity could be saved considerably and the simpler problem could be solved manually.

本文引进传递矩阵方法求解高层剪切式框架结构的动力特性，其优点是可以在小型计算机上计算比较大的结构，这种方法的特点是不需要集成总刚，而只用低阶矩阵进行运算，因而可以大大节省计算机内存，简单题目也可以用手算。

At last, the Double Message Signal is proposed and the non-interfere condition is presented that the steering vectors are orthogonal in the weighted inner product space, with the inverse matrix of background covariance as the weighting matrix. The optimal polarization states are designed, according to the EM background.

最后，提出了一种双信息信号传输的方案并导出了无互扰传输的充要条件：两期望信号的信号矢量在以干扰噪声协方差矩阵的逆矩阵为加权矩阵的加权内积空间中正交，在给定的电磁环境下设计了双信息信号的极化状态。

According to the principles of the matrix converter while working in unbalance input and balance input condition, the simulation model for dynamic modulation strategy of offset angle of input current for matrix converter was founded with Matlab in unbalance input.

据输入非平衡、输出平衡时矩阵变换器的工作原理，用Matlab建立输入非平衡时矩阵变换器的输入电流偏置角动态调制策略的仿真模型。

The similar canonical form of involutory matrix on integral number ring is given,and the unigue of similar canonical form of involutory matrix is proved in this paper.

给出了整数环 Z上对合矩阵的相似标准型，并证明了其唯一性。

Using the surface integral equation analysis of complicated target scattering, impedance matrix Z is a dense matrix.

利用表面积分方程分析复杂目标电磁散射特性时，得到的阻抗矩阵Z是一个稠密矩阵。

Based on the special matrix operations including Kronecker product, Hadamard product and vectorization, the integration of monomial integrand on simplex domain is expressed in matrix form and a recursive formula for the simplex integration is presented.

基于Kronecker积、Hadamard积和拉直等矩阵特殊运算，将单项式函数在单纯形上的积分表示为矩阵形式，提出了单纯形积分的递推公式。

According to these results, it is considered that in the matrix of gray cast iron nitrogen solid-solubilizes as interstitial atom in the octahedron interstice of ferrite and cementite which is not occupied by carbon atom, and causes the crystal lattice of ferrite and cementite to distort, so that the micro-hardness of the matrix increases.

依据这一实验结果，作者认为，在灰铸铁基体组织中，氮以间隙原子的方式固溶在铁素体和渗碳体中未被碳原子占据的八面体间隙里，造成铁素体和渗碳体晶格畸变，从而提高了基体组织的显微硬度。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。