系数矩阵

Antenna mutual coupling is considered and the general coupling coefficients matrix from the equivalent network model of the multiple-antenna is obtained.

考虑多天线间互耦，建立了多天线系统等效网络模型，导出通用耦合系数矩阵。

Based on analyzing the disadvantages of relative research, this paper selects the group specialists' advice of evaluation index with a matrix of similarity factor, and solves the problem of reasonable distribution of index weight in credit risk evaluation system.

本文在分析同类研究弊端的基础上，利用相似系数矩阵对众多专家评价指标的权重意见进行筛选，解决了信贷风险评价体系指标权重的合理分配问题。

By For the Jacobi iterative method of Gauss - Seidel iterative method and the comparison Initial research iterative equation and the nature of the coefficient matrix iteration convergence speed impact.

本文通过了举例对Jacobi迭代法和Gauss-Seidel迭代法进行了比较，研究迭代初值和方程组系数矩阵性质对迭代法收敛速度的影响。

Based on the adequate study of general method to solve linear equation group, this thesis employs incomplete Cholesky conjugate gradient method for the numerical stability and efficiency of solution process. In order to eliminate morbidity of FEM coefficient matrix and speed up its convergency, this thesis proposes a newly effective incomplete Cholesky decomposition preconditioned method and suggests some improved preconditioned schemes to the current popular ICCG methods.

为了克服系数矩阵病态特性和加快收敛速度，本文从完全的Cholesky分解出发，构造出了一种新的不完全分解预处理方法，效果显著；另外，在已有的不完全Cholesky分解预处理方法的基础上，提出了十分有效的改进方案。

In SLDMINV the invariance of the Krylov subspace is invoked, making the main computation reduced into almost real arithmetic, and thus lowering the computation amount markedly. In the meantime, the iteration is performed in the Krylov subspace generated from the inverse of the coefficient matrix and so the convergent speed is enhanced greatly, leading to two orders of the magnitude improvement over standard SLDM.

SLDMINV中运用了Krylov子空间不变性技巧，这使得计算基本化为实运算，显著降低了计算量；同时在由系数矩阵的逆构成的子空间上进行迭代，收敛速度大大加快，较之SLDM提高两个量级。

Professor Deng pointed out the ill-conditioned problem of grey model firstly, but how to research have not appear. This paper mainly research on the ill-conditioned problem of grey model.

因此研究GM模型的病态性问题，寻找能降低系数矩阵条件数的有效方法，是保证灰预测控制实际效果可靠性的重要基础。

In the two-dimensional simulation, the fully implicit difference scheme is used for the continuity equations to ensure numerical stability; Jacobian iteration is used to solve the difference equations, and only nonzero elements in the coefficient matrixes of these equations are dealt with, which reduce the requirement for memory and shorten the calculation time.

在两维模拟计算中，对连续性方程采用全隐式差分方案以保证数值稳定性；运用雅可比迭代法求解差分方程组，并且在求解过程中，只对差分方程组系数矩阵中的非零元素进行处理，因此减少了对内存的需求量，而且缩短了计算时间。

Base on transportation scientific program assessment index's characteristics of innumerability dimension and hardly quantization, a methodology named principle component analysis by measuring factor coefficient matrix is put forward to reduce the dimension of assessment index system.

基于交通科技项目评价体系涉及面宽、种类繁多和难以量化的特征分析，通过因子荷载阵及计算因子系数矩阵的估计方法，运用因子分析法完成了指标体系的降维处理。

A new method is proposed to determine internuclear distances from a 2D NOESY peak intensity or mixing coefficient matrix with a single mixing time.

提出了从单个混合时间的2D NOESY峰强度或混合系数矩阵直接求取核间距的新方法。

2D NEOSY peak intensity ; 2D NOESY mixing coefficient ; Nuclear cross relaxation rate ; Internuclear distance

2D NOESY峰强度； 2D NOESY混合系数矩阵；核交叉弛豫速率；核间距

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新