查询词典 variational problem

image processing ; partial differential equation ; variational principle ; level set

源于变分原理的偏微分方程方法，是将所研究的图像处理问题归结

By using variational method to the non-paraxial equation, four coupled equations for beam parameters governing the propagation properties are obtained.

根据非傍轴效应总是小量的特性，结合得出的耦合方程，得到非傍轴迭代方程。

It is equivalent to solve differential equation for under water explosion. The modes of velocity potential function and movable boundary are chosen, then, a variational equation system is derived by REDUCE procedure on computer.

在此基础上，选取了流场及运动边界的模态，将泛函对选定的自变函数变分，并取驻值；用REDUCE语言由计算机推出变分方程组。

Under the new boundary conditions related to viscous fluid, the variational equation of beam bundle fluid-solid coupling system related to viscous fluid is reached.

3在流体有粘的假设下，本文为随后的数值分析做了一些基础性的工作，在有粘流体相应的边界条件下，得到了粘性流体下管束流固耦合系统的变分方程。

Use Maltab variational parameters lorenz equation...

利用Maltab求解变参数lorenz方程，在非线性动力学和混沌研究中经常遇到类似的问题。

Making use of field matching method,combining with the variational method,the dispersion equation of the ridge loaded ring plane slow wave structure and small signal gain of this type of TWT are presented in this paper.

脊加载环板行波管是一种频带相对较宽的大功率行波管，本文用场匹配和变分原理相结合的方法，研究了脊加载环板慢波结构的导波特性及这种行波管的小信号、大信号特性，讨论了结构的几何尺寸及电子注参量对慢波的传播特性、小信号增益及注波互作用非线性效应的影响。

The author has founded mathematical method of optical design for flow type basing on the turbomachinery rule equation and classical variational principle.

作者从叶片机械的欧拉方程出发，运用经典变分原理，建立了风扇流型优化设计的数学模型，解决了风扇扭曲规律优化设计这一难题。

To increase effective resolution of a tilting mode satellite image, we present a novel variational partial differential equation restoration method, which employs the gradient fidelity term to compensate high frequency information.

利用梯度保真项具有补偿高频信息的能力，提出一种变分偏微分方程复原方法，用于提高斜模式遥感图像的有效分辨率。

Based on the two phase anisotropic model this paper analyses and presents the dynamic equations of elastic wave propagation, the Galerkin variational equation, and the finite element equation in two phase anisotropic media.

基于双相各向异性介质模型，首先推导了双相各向异性介质中弹性波传播的动力学方程及其Galerkin变分方程和有限元运动方程，然后给出了孔隙弹性波方程的有限元数值解法以及二维双相PTL介质中波场模拟的人为吸收边界条件。

This paper deals with the existence and multiplicity for one elliptic problems with p-Laplacian and an asymptotic linear equation by variational methods, especially the Mountain pass Lemma.

本文主要利用变分法，特别是山路引理研究了一类P阶Laplace方程和渐近线性椭圆方程解的存在性及多解性。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。