查询词典 serial correlation coefficient

A bstract: This paper focus on virtual instrument design of modal parameters identification with curve fitting theory based on rational fraction orthogonal polynomials. Using Forsythe orthogonal polynomials solves the coefficient equation instead of normal power polynomials in order to decrease the morbidity of it, making the orders of coefficient equation reduce to half and increasing computing efficiency.

本文基于有理分式正交多项式曲线拟合理论对振动系统的模态参数辨识进行了虚拟仪器的设计，为了减少系数矩阵的病态，采用 Forsythe 正交多项式代替普通的幂多项式进行求解，使系数矩阵阶次降低近一半，提高了运算速度。

Firstly, the coefficient matrix is put into Excel so as to see the possible solution to the linear equation groups; then the reciprocal matrix of the coefficient matrix is obtained; lastly the solution to the linear equation group is gotten.

首先在Excel中输入系数矩阵，并判断线性方程组是否有解，然后求出系数矩阵的逆矩阵，最后求出线性方程组的解。

Taking the active network as a research task, the input accessibility, the Coates graph of matrix and graph transmission etc are used to analyze the relation between reducibility of the coefficient matrix of the state equation and the electric separability of the network or the electric accessibility of the network for the first time, acquiring sufficient and necessary conditions that coefficient matrix of the state equation is reducible. Network Graph Theory, Matrix Theory and System Theory over F etc are used to derive the structural controllability criterion of the passive network over F for the first time. Then according to these theoretic results, the structural controllability problems of the active network over F are studied, acquiring several structural controllability conclusions of the active network.

率先将状态方程的输入可达、矩阵的Coates图、流图传输系数等概念和方法引入到对F上有源电网络的研究，研究了网络状态方程的系数矩阵的可约性与网络电气可断性或电气可达之间的关系，研究了F上有源电网络的能控性问题，获得了状态方程的系数矩阵可约的充分必要条件、F上有源电网络系统的结构能控性判据等新的结论。

A correlative coefficient for the defect mode interaction and a relative refractivity coefficient are defined.

定义了缺陷模之间相互作用的关联函数以及缺陷模的相对折射率函数，进而分析了关联函数和缺陷模折射率的关系。

Then using the method of regression analysis to seek the regression equation of Coefficient of discharge and Submerged coefficient with each influencing factors.

然后运用回归分析方法求出了流量系数、淹没系数与各自主要影响因素之间的回归方程。

Relative permittivity coefficient approaching 2 000 and relative permeability coefficient more than 1.4 are calculated respectively.

推算出脉冲形成线的相对介电常数接近2 000，相对磁导率大于1.4。

A relationship between absorption coefficient of sample and reverberation time is proposed and applied to correct the standard absorption coefficient.

通过对混响室声场的模拟计算，建立材料吸声系数与混响时间的关系，并对实测的吸声系数进行修正可提高声场计算机模拟的精度。

Through the experimental platform for rating RFD's merits, discharge coefficient Cd and pressure recovery coefficient Cp in the mathematics model were deduced.

在RFD性能评价平台上，确定了数学模型方程中的流量系数及压能转换系数。

Road friction coefficient and roller friction coefficient are necessary.

精确地测量制动实验台滚筒的附着系数和开发相应的检测设备是非常有意义的。

Through the permeability test of rock salt, it is investigated on the damage acting as coefficient of permeability, the relationship between confining pressure and coefficient of permeability is given.

通过盐岩的渗透实验，研究了损伤对盐岩渗透系数的影响；并给出了围压与渗透系数的拟合关系式。

Effective local search tactics reaches local searchers when they are ready to buy - with every way that it is possible for them to buy from you.

有效的地方搜索策略达到当地的搜索，当他们准备购买-以各种方式，这是他们有可能从您那里进行购买。

The first two are periodic sentences for their beginnings; and the fifth and the last are also periodic sentences each for the embedding of a parenthetic structure.

1960年代中后期，当战后女权主义和当时的许多其他抗议运动在西欧和北美发展成某种势力时，性别的概念演绎成补充和延伸生物性别差异的概念。