查询词典 density matrix

Firstly, we simply introduce the basic knowledge of the comparison of estimate and model. Then, we use matrix partial order theory to compare the generalized ridge estimation with the least square estimation in section III of this chapter.

首先，简单介绍了估计和模型比较的基础知识，然后在本章第三节利用矩阵偏序理论比较了广义岭估计与LS估计。

This result gives a quatitative proof to the partial determination of the S matrix in the RAS technique of the modefied technical coefficient.

在第四章中，研究了利率、工资及产品价格变动对直接消耗系数的影响，这一结果为修正直接消耗系数的RAS法中的S阵的部分确定，即价格影响部分提供了定量依据。

In the chapter 4, we discussed the generalized linear inversion method of direct current IP data from the angle of the least squares method. The computed speed of inversion can be greatly raised by calculating the partial derivatives matrix combining the reciprocity principle with Broyden\'s quasi-Newton method.

在第四章中，从最小二乘广义线性反演的角度，探讨了直流激电数据的广义线性反演方法；在偏导数矩阵的计算过程中，通过将互换原理与Broyden拟牛顿技术相结合的计算方式，可大大提高反演的运算速度。

The impact of transfer contracts on node voltages is evaluated according to base-case Jacobian matrix and the partial derivatives of ...

定义flowgate为线路热极限和线路故障2种情况，分别计算基态潮流和考虑线路紧急故障情况下的区域间ATC值，并与线性分布因子法和重复潮流法计算结果相比较。IEEE30节点系统计算结果表明，该算法快速准确，满足在线计算和分析要求。

Based on continuous conditions of general displacements and stresses at interfaces of adjacent layers and given boundary conditions, the reflection and transmission coefficients of elastic wave were obtained by virtue of partial wave method and propagator matrix method.

以多层纯弹性结构为研究对象，验证本文提出方法的正确性，然后对弹性波在多层电磁弹性结构中的反射与透射特性进行了计算和分析，并讨论入射角、入射波频率和电磁边界条件对这些系数的影响。

The DC reactive power is the only parameter to be specified in calculation, and the partial differential formulas in Jacobian matrix do not change when the DC control model changes.

计算时，只需规定换流器直流侧的无功功率，而且当直流系统控制方式发生变化后不需重新推导Jacobian矩阵中的偏导公式。

In the step of modeling, normalization in feature space is discussed. In the step of fault detection, SPE statistic is constructed more easily by virtue of the kernel matrix. Partial kernel PCA is developed to extend the fault isolation based on structured residuals to nonlinear system.

在建模阶段，讨论了特征空间标准化的问题；在故障检测阶段，提出了一种利用核矩阵构造SPE统计量的方法以便故障检测更易实现；在故障隔离阶段，提出了部分KPCA算法，把基于结构化残差的故障隔离方法推广到非线性系统。

Lattice vibration ; Characteristic yalue of the matrix ; Partial mode

晶格振动；矩阵特征值；局部模

Based on the mechanics analysis of reheater desuperheating spray used in large scale power units and the partial differential theory and matrix analysis method,an analysis model for calculating the influence of reheater desuperheating spray on power plant s thermal economy has been established through rigorous mathematical derivation.

对大型机组的再热器减温喷水的机理进行分析，运用偏微分理论和矩阵分析方法，经过严密的数学推导，建立了再热器减温喷水对机组热经济性影响的计算模型。

Based on the mechanics analysis of reheat er desuperheating spray used in large scale power units and the partial differential theory and matrix analysis method,an analysis model for calculating the influence of reheat er desuperheating spray on power plant s thermal economy has been established through rigorous mathematical derivation.

对大型机组的再热器减温喷水的机理进行分析，运用偏微分理论和矩阵分析方法，经过严密的数学推导，建立了再热器减温喷水对机组热经济性影响的计算模型。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。