变分法

利用变分法原理，推导出满足优化问题的必要条件

The necessary conditions for optimality were derived calculus of variations .

关于变分法中Nash平衡点的扰动定理

Perturbation Theorems for Nash Point Equilibria in the Calculus of Variations

由单幅图像重构表面形状的B样条变分法研究

B-Spline Variational Method for Shape Reconstruction from Shading

变分法在H型钢万能轧制温度计算中的应用

The Calculus of Variation Used in the Calculation of H-Beam Universal Rolling Temperature

同时这一工作也表明，用线性变分法结合B样条函数在处理这类问题时是非常有效的。

It is a fairly proper method to handle these sorts of problems by using variational method and B splines .

基于变分法的SAR卫星图像分割技术研究

Research of SAR Image Segmentation Based on Variational Method

厚高阶光学非线性介质Z扫描的变分法分析

Variational Approach to Analysis of Z-Scan in Thick Media With High Order Nonlinearity

改进Hückel模型变分法与同系线性规律

Modified H ü ckel Model Variational Method and Homologous Linearity

它是基于变分法和有限差分法的结合，适用于任意折射率分布和r值。

This method is based on the combination of variation and finite difference methods , and is suitable for the arbitrary index profile and width-depth ratio .

使用分区变分法计算了GaAs，GaP和GaAsxP（1-x）合金的能带。

The energy bands of GaAs , GaP and GaAstP_ ( 1-x ) are calculated using the zone-variational method .

曲面G1拼接中的变分法

Variational method in G 1 surface connection

我们首先讨论了如何通过Boltzmann方程和变分法得到剪切粘滞系数。

We will firstly discuss about derivation of the shear viscosity via variational method in the Boltzmann equation .

对能量变分法和Rayleigh法进行了比较，对发现的问题进行了探讨。

Furthermore , The energy variational method and Rayleigh method are compared and some problems need to be studied are also discussed .

量子Klein-Gordon模型色散关系的含时变分法研究

Time-dependent variational approach to dispersion relation of the quantum Klein-Gordon model

在SD对壳模型的理论框架下，利用变分法及TDA近似确定SD对结构。

Variational method and TDA approximation was applied to construct the SD pairs in the SD-pair shell model ( SDPSM ) .

变分法的Euler-Lagrange方程及其应用

The Euler-Lagrange Equations in the Calculus of Variations and their Simple Applications

集团变分法（CVM）及其在合金相图计算中的应用

Cluster variation method ( CVM ) and its application in calculation of alloy phase diagrams

SU（2）格点规范理论的Manton作用量的改进变分法研究

Improved variational study in su ( 2 ) lattice gauge theory for Manton action

基于变分法的局限性，在其基础上引入控制变量u，构建了一个分段时间连续的选举模型。

Considering the limitation in calculus of variations , the authors introduce control variable with which a piecewise continuous time model of election based on calculus of variations is newly established .

根据流体力学理论和变分法原理，推导出了熔透情况下TIG焊接熔池上表面和下表面变形的方程。

The calculating formulas of top and bottom pool-surface deformation in TIG full-penetration weld pool is developed based on principles of fluid mechanics and variation calculus .

研究了离散动力系统和连续动力系统的Lyapunov指数，提出了定量识别混沌的新方法：计算最大Lvapunov指数的变分法，为判定混沌是否存在提供了有效方法。

Lyapunov exponent for discrete and continuous dynamic systems are investigated , and an effective criteria for determining chaos based on computing the largest Lyapunov exponent using variation method is proposed .

非相对论能量及波函数用Rayleigh-Ritz变分法确定；

The non-relativistic energies and wave functions are calculated by using Rayleigh-Ritz ′ s variation method .

本文按照Skyrme变分法的精神，求得了原子核gR因子的普遍公式。

A general formula for the gR factor is derived in accordance with the spirit of Skyrme 's variational method .

根据变分法推导出了杂交有限元中奇异元应力强度因子的计算公式，并用杂交有限元法计算了V形切口顶端的应力强度因子KⅠ和KⅡ。

Based on the Variation Principle , the formula of stress intensity factor of hybrid-element were obtained , the stress intersity factor of the beams with V-notch , K ⅰ and K ⅱ calculated by the hybrid-element method .

利用变分法原理获得了在不记双瑞利背散射（DRB）影响时的最优信号功率分布函数&均匀分布，但考虑双瑞利散射影响时则不存在解析的最优分布函数。

But the analytical optimal distribution does not exist when taking double Rayleigh backscattering ( DRB ) into account .

根据变分法和ABCD定律，导出了非线性锥形梯度折射率棒透镜中高斯光束的成像公式。

Imaging formulas of Gaussian beams in nonlinear conical GRIN rod lenses are derived from the variational method and the ABCD law .

利用改进变分法求出了正切作用量的四维SU（2）格点规范理论的元格内能和比热曲线。

By using improved variational method , the internal energy per plaquette and the specific heat curves of the Tangent action in SU ( 2 ) lattice gauge theory arc worked out .

散射变分法和Regge轨迹

Variational Method for Scattering and Regge Trajectories

用变分法研究了受迫二维广义KdV方程的反周期行波解的存在性。

Using variational methods , we study the existence of the anti periodic traveling wave solutions to a forced two dimensional generalized KdV equation .

研究了滤波控制DMS在双折射光纤中的传输特性，采用变分法解出滤波控制DMS的传输规律，解析结果表明，PMD的滤波控制极大地优化了DMS传输性能。

The filter controlling the propagation characters in birefringent fiber of the DMS is researched and the variation method is introduced to analyze the rule of the DMS .