查询词典 Poisson bracket

In this paper, a Green quasi-function is firstly set up by using the basic solution of Poisson's equation.

利用Poisson方程的基本解构造一个准格林函数，这个函数满足Poisson方程的齐次边界条件。

A new concept and the regression equation of Poisson ratio are put forward for reinforced concrete based on reliable test data and regression analysis in this paper.

泊松系数和弹性模量是工程材料力学模型物理方程中的两个必须由试验确定的材性参数，力学模型的可靠性和精确度取决这两个参数的取值。

This paper developed Feynman-Kac theorem in connection with multidimensional Poisson jump-diffusion stochastic differential equation.

在随机分析学中，Feynman-Kac公式是联系概率论与偏微分方程的桥梁。

Eignevalue of poisson equation can be expanded using bilinear element .

研究对Poisson方程的特征值采用双线性元进行展开。

Phase unwrapping method based on the solution of discrete poisson equation.

用于相位展开的调制度罗伯特梯度幅值方差质量图。

By contrast with the simplified hydrodynamicmodel for semiconductors, there is a lack of coupled Poisson equation for electric poten-tial.

与半导体中的简化流体动力学模型相比，方程组少了关于静电势耦合的Poisson方程。

There exist some disadvantages in several common methods for solving the Poisson equation of PN junction, and so a new ameliorative arithmetic was presented.

摘 要：针对在PN结泊松方程求解过程中几种常用方法存在的不足，提出一种改进算法。

The model consists of the conservation laws for the electron density and the current density coupled to the Poisson equation for the electrostatic potential.

该模型由电子密度和电流密度的守恒律方程组相合上关于静电位势的Poisson方程而组成。

Finally, the rational macro-element method was programmed to solve Poisson equation and verifies the validity of this mefhod.

作有理宏单元法解泊松方程边值问题的算例，验证了本文方法的有效性。

In this paper, we expand eigenvalue of Poisson equation using bilinear element ,By the formulation of the error expanition,we can conclude that it is a upper bound.

本论文对Poisson方程的特征值采用双线性元进行展开，得到了误差展开式，通过误差展开式，我们能得到特征值是上界。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。