查询词典 diagonal element

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。

Basic research shows, the hyperplasia that mental element diagonal forms a cell character and cutaneous immunity have adjust action.

基础探究显示，精神因素对角质形成细胞的增生和皮肤的免疫有调节功能。

The adjacent, diagonal springs in each fuel element cell are inclined in opposite directions.

每个燃料元件隔室中相邻的对角线弹簧沿着相反的方向倾斜。

By calculating the relative gain matrix of generalized control object and the judgment criterion along the diagonal element, the necessity can be obtained for decoupling control system of hydroelectric sets.

通过计算广义控制对象相对增益矩阵，根据其对角线上元素评判标准，可得出对水轮发电机组实施解耦控制的必要性。

As a try of application of Yao's algorithm I used it in the Pn travel time inversion and found the spatial distribution of the diagonal element values of the resolution matrix obtained after 500 iterations.

分辨矩阵对角线元素的大小和射线的疏密呈正相关关系。

In the proposed method the data from state estimation or power flows during larger time interval is used to calculate nodal voltages and the initial value of current transitive-relationship matrix; the variation of diagonal elements of this matrix reflects the variations of the detailed models of system components, network topology and parameters after the perturbation, then by use of the PMU measured data in millisecond level the primary diagonal element can be modified.

该方法采用时间间隔较大的状态估计或潮流数据计算节点电压和电流传递关系矩阵的初值，并利用该矩阵主对角元的变化反映受扰后系统各元件的详细模型、网络拓扑和参数的改变，然后使用相量测量单元毫秒级的量测数据对其进行修正，从而为在实际应用中将相量测量单元与SCADA系统相结合做出了有益探索。

The dominant merit of the proposed decoupling PID controller was that the controller was developed in an absolutely transparent manner and the controller can realize significant decoupling among the nominal responses of system outputs. Moreover, every output can be tuned on line by the single adjustable parameter in the corresponding diagonal element of the controller.

该解耦PID控制器的突出优点是控制器设计过程简单直观；控制器可以实现标称系统输出间的显著解耦；系统输出分别使用相应控制器对角元素中的调节参数进行单参数整定。

Based on hexahedra vector finite element in ANSYS,a new orthogonal-reinforced hexahedra vector element is created by modifying vector basis functions.Due to orthogonality of sampling nodes and orthogonality of integral simultaneously,the new vector element can strengthen diagonal elements' predominance and quicken speed of solving system question group.

在ANSYS采用的六面体矢量单元的基础上，对矢量基函数作了一些增强正交性的修改，使其同时具备采样点正交性和积分正交性，得到了一种新的正交增强六面体矢量单元；这种新单元能增强系统矩阵的对角占优特性，加快系统方程组的求解速度。

For example: Causes the diagonal matrix aspect using the matrix similarity the operation simplification, as well as using the matrix similarity determined transports in the mathematics problem in the matrix unknown element and so on.

利用矩阵的相似性使得对角矩阵方面的运算更简单化，以及利用矩阵的相似性来确定运算题中的矩阵中的未知元素等。

According to this characteristic, the search matching method of this diagonal line in this calculation is to regard the main diagonal lines as the superior searched route, discard the elements far from the main diagonal lines and it won't generate matching matrix when actually realized. Just regard the present search point as the start point, search matching elements at the small rectangle from the bottom right, regard the element when found as the new start point, so this can happen repeatedly until the ends of the two strings.

根据这个特点，本算法中的对角线搜索匹配算法以主对角线为优先搜索路径，抛弃了离主搜索路径太远的元素，实际实现时，并不需生成匹配矩阵，只以当前搜索点为起点，向右下方向一个小矩形区域上搜索匹配的元素，找到匹配的元素后即以该元素为新的起点，这样无回溯地重复进行直到两个串的未尾为止。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。