查询词典 rectangular matrix

To realize reduced equivalent representation for functional dependency set, sameroot row, same-class row and same-class row family are presented, merging rules of same-root row in a schema matrix are defined, merging algorithm of same-root row and solving algorithm of same-class row family in a schema matrix are discussed.

为了实现函数依赖集的最简等价表示，提出了同根行、同类行、同类行族的概念，定义了模式矩阵M中同根行的合并运算规则，讨论了模式矩阵M中同根行合并算法，同类行族求解算法。

V-I transmission matrix method is presented firstly in this paper to analyze the reflection spectral characteristics of fiber grating F-P cavity and the V-I transmission matrix model is established.

本文首次将V-I传输矩阵法用于光纤光栅F-P腔反射光谱特性的分析，并建立了V-I传输矩阵模型。

In this dissertation, we establish the fundamental theory and methods to study systems of linear matrix equations over regular rings and polynomial rings over finite central algebras; and investigate some significant systems of linear matrix equations over the rings mentioned above.

本文在正则环和有限维中心代数上的多项式环上初步建立了研究矩阵方程组的基本理论和方法，并在上述环上研究了具体的具有重要意义的矩阵方程组。

If the step of the linear system question is not very high, direct solving method is better; if coefficient matrix of the linear system question is not regular and large-sparse matrix , direct solving method does not settle the storage question.

而在求解线性方程组的许多实际问题中，尤其在偏微分方程的差分方法与有限元方法求解问题之中，方程具有重要的特征，一是多为大型稀疏矩阵；二是满足一些条件如对称正定、对角占优等，这使迭代法得到广泛的应用。

The reluctivity matrix is obtained by using the trigonometric function transformation and the form of coefficient matrix is simplified.

该方法利用递推公式进行三角函数的积化和差运算求取谐波平衡有限元算法中的磁阻矩阵，简化了方程组系数矩阵的形成。

This method applies (2D)2PCA in original image matrix set the residual image matrix set respectively.

该方法将(2D)2PCA技术分别应用到原始图像矩阵集和剩余图像矩阵集。

Because of large difference in coefficients of thermal expansion between graphite fiber and magnesium matrix, there was high residual stress in matrix near the interface.

由于石墨纤维和碳化硅颗粒与镁基体的热膨胀系数相差很大，在界面区域基体中存在较高的残余应力。

Because the composites should be cooled down from soft temperature to room temperature, the residual stress in the matrix is very high, which can result damage in matrix.

陶瓷基复合材料能够使用在1100℃以上的高温氧化环境中，是航天飞机结构材料和陶瓷发动机未来的一种新型材料。

In this paper, by projecting the initial residual matrix onto a matrix Krylov subspace, we present a new method -- global generalized minimal error method.

我们考虑将初始残量矩阵总体投影在一个Krylov子空间上，从而得到一种新的方法—总体广义最小误差方法。

On the basis of elastic mechanics theory, the residual microstress expression of matrix around fibers in composites and the stress distribution expression of the matrix around fibers in the composites during tensile process were deduced.

本实验中，纤维体积分数为15%和20%的复合材料强度分别在125℃和81℃时达到了基体的强度，而纤维体积分数为25%的复合材料在室温时强度就超过了基体的。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。