系数矩阵

Because the coefficient matrix of system equation with mixed method is indefinitive, an iterative solution method of the system equation is given out.

由于后者系数矩阵非正定，为使方程唯一可解，要求压力插值函数的阶必须低于固体相位移插值函数的阶，对此提出了一种系统方程的迭代求解方法。

Mixed finite element equation with u〓-u〓-p variables has indefinitive coefficient matrix and therefore can not be solved using direct methods and traditional iterative methods.

基于〓变量的混合有限元法，系统方程的系数矩阵非正定，不能用直接法和传统的迭代法求解。

Formulas are derived to compute hydrodynamic pressures or hydrodynamic perssure influence matrices on dams using series development and linear superposition theorem with nonvertical upstream face、the compressibitily of water、the effect of absorption of the reservoir bottom ect. being taken into account.

利用级数展开和线性叠加原理，推导了坝迎水面倾斜、库水具有可压缩性、库底具有吸收性等多种情形下，重力坝迎水面上动水压力和动水压力影响系数矩阵的计算公式。

This method allows for a more accurate processing of boundary condition on the semiconductor layer in XLPE cable of stator winding than the standard finite element, so that the interlaminated issue of boundary condition on interface can be avoided. A general algorithm is applied to deal with both the Dirichlet and the periodic boundary condition in 2D or 3D magnetic field problem.

提出了用有限元法计算磁场问题时周期性边界条件和第一类边界条件的统一处理方法，利用该方法在不改变代数方程组阶数、保持系数矩阵性质不变和带宽基本不变的条件下，使两种强加边界条件能同时处理，简化了程序编制，并与寻址方法相结合，提高了计算速度。

The IKONOS data of Beijing Yuanmingyuan is fused with Tasseled Cap and PCA methods.The fusion results are analyzed and compared with full image and vegetation subset.The result shows that,in study area,the KT fusion method is better than PCA in full image and vegetation subset.The fusion results are differential with different KT transformation matrix,and the method of fusion should be chosen according to study area,data,and classification methods.

应用缨帽变换和主成分分析方法，对北京圆明园周围的IKONOS全色波段和多光谱波段进行融合，并分别对整景影像和植被区的融合结果进行对比研究，结果表明：在该实验区，整景影像和植被区缨帽变换融合结果都优于主成分析结果，不同的缨帽变换系数矩阵在整景影像和植被区融合质量会有差别，应根据具体地点、时相，分类方法做适当的选择。

In this study, we use multidimensional scaling technique to visualize time-varying returns between risky asset behaviors. From this market map, we can investigate adequacies of asset allocation and explore the risk structure of the markets more.

一般是采用相关系数矩阵观察资产间的相关性大小，利用多元尺度法所形成的资产集合构形图可帮助我们直接以视觉化的角度一次性的观察所有资产间的关系。

The number of effective loci, the percentage of polymorphic loci, Shannon's Information index and effective number of alleles is in turn109, 61.58%, 0.3135, 1.3641 for RAPD makers, and 79, 71.82 %, 0.3577 and 1.4037 for ISSR markers; Jaccard's genetic similarity matrice and dendrograms for the 10 individuals were formed based on RAPD and ISSR-generated polymorphic bands.

基于扩增条带数据库建立了各自的Jaccard遗传相关系数矩阵，构建了相似的分子树状图，将10个供试材料分为2类：一类群含组培85.5、大田85.5、组培9302、大田9302、金状元和金白6个材料；另一类群含北京1号、大红袍、地黄9104和野生地黄4个材料。

These two models both have the similar feature with classical dynamic OPF. Therefore, the KKT matrics are also block diagonal bordered matrices.

这两种模型都具有与经典动态最优潮流问题相似的结构，因此修正方程的系数矩阵同样具有分块对角带边结构。

Based on Galerkin finite element method, a new upwinding finite element numerical model suitable for modeling wind driven current in shallow lakes is derived by introducing streamline upwinding method and the selective lumping coefficient matrix scheme.

从控制方程组出发，以 Galerkin有限元法为基础，引入沿流线加权的权函数(沿流线加权的迎风有限元法)和选择性集中系数矩阵方法，推导、建立了一适合于浅水湖泊风生流计算的二维迎风有限元数值模型。

Because of the viscosity of fluid and non-existence of velocity potential, the symmetry of mass matrix, stiffness matrix and the coefficient matrix of the first order of system no longer exists, so the modal analysis of system becomes very complicated.

由于流体粘性的影响，流场有旋，没有速度势，所以系统质量阵、刚度阵以及一阶项的系数矩阵的对称性被破坏，从而使得系统的模态分析变得很复杂。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。