系数矩阵

Amukhin et al.,and convert it into an effective1D chain with particular distribution of equivalent coupling bonds.Then we use the single-electron Schrodinger equation to calculatewave functions of electrons in the chain by transfer matrix method,without using the assumption of Samukhin et al.On variable hoppingmechanism and critical percolation condition.From this calculationwe obtain the dc conductance directly from Landauer-Buttikarformula.

mukhin提出的多层次等级分形结构模型，将其简化为耦合键强度t具有特殊分布的等效一维链，舍弃前人假设的变程跳跃机制与临界渗流条件，从单电子薛定谔方程出发，用转移矩阵方法计算一维链的透射系数，再利用Landauer-Buttickar公式直接求出直流电导。

From Poisson matrix, we can observe volume-preserving vector fields. By using Geiges-Gonzalo's existence of contact circle Theorem [3] , we show the existence of volume-preserving circle on3-manifolds which says that every3-manifold admits two linear independent vector fields preserving a same volume form.

通过Poisson矩阵可以观察出保积向量场，再利用Geiges-Gonzalo的接触圆存在性定理[3]，我们证明了保积圆的存在性：每个闭的3-流形上都存在两个处处线性无关的保积向量场并且它们的常系数线性组合仍是保积向量场。

With cyclic prefix, the channel matrix exhibits block circulant property which is exploited to blindly identify periodically modulated block transmission system in an existing method.

一种针对具有循环前缀和周期调制的块传输系统的盲辨识方法，利用了信道矩阵的块循环特性来求解信道系数。

The Minimax admissibility of linear estimates with respect to restricted multivariate regression coefficient under matrix loss function is considered.

在矩阵损失下给出了带约束的多元回归系数线性估计在线性估计类中是 Minimax可容许估计的充要条件。

Methods: Multi-method has was used, mainly including CV methods, correlation matrix methods, and factorial analysis.

综合利用数理统计方法，主要包括变异系数法、相关矩阵法以及因子分析。

Research on calibration of cameras based on cross ratio invariability ;2. Firstly,order radial lens distortion parameters are computed by using cross ratio invariability .

该方法利用透视投影的交比不变性原理标定镜头的畸变系数，基于摄像机成像的单应性矩阵及内部参数的基本约束，线性标定出其他摄像机参数。

GA is used to obtain coefficients of cubic spline function fitting to avoid the inverse of the matrix and some work is made with an example.

文中将GA用于三次样条函数拟合的系数求解，避开了矩阵求逆的繁琐问题，结合具体例子作了一些探索。

This method requires only the dimensions of systems and the expansion coefficient of density matrix which can be easily got, and the computation is easy, so it has its application value.

此判据仅依赖于系统的维数和密度矩阵的展开系数，而这些数据是易于求得的，使得量子纠缠态的判断简单易行且易于操作，在实际运用中具有理论价值。

The main contents and the contributions are as the follows:(1) The general form of the movement equations in terms of Taylor series is derived, for the first time the movement equations of electric power system is expressed by matrices, the characteristics of the coefficients of Taylor series is studied.

所得的主要研究成果如下：（1）推导了电力系统运动方程的高阶泰勒展开的一般形式，首次将电力系统状态方程的泰勒展开用矩阵表达，研究了泰勒展开系数的特性。

Methods Jaccard coefficent is employed to measure the similarity of individuals, and the distance matrix is constructed.

采用 Jaccard系数进行样品间的相似性度量，构建非欧几里德距离矩阵，在 SAS数据步过程中完成上述计算，并生成分析数据集，通过调用 Cluster过程对资料进行聚类分析。

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。