查询词典 metric coefficient

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。

On this basis, we can calculate determination coefficient and complex correlation coefficient, and do the test of Significance of regression equation.

在此基础上也可递推计算决定系数、复相关系数等，并进行回归方程的假设检验。

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。

The friction coefficient of the samples with low density of composite A increase with the prolonging of test time, while the samples with high density remain stable; the friction coefficient of the samples with low density of composite B exhibit ruleless results with the increase of load, while the samples with high density remain stable, too.

随时间延长， A 材料低密度试样摩擦系数升高，高密度试样的保持稳定； B 材料低密度试样的变化不规律，高密度试样能基本保持稳定。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。