non-linear equation

Application of genetic algorithm with gradient information to solving non-linear equation group

带有梯度信息的遗传算法在求解非线性方程组中的应用

The Application of floating Genetic Algorithms to Solving Non-linear equation groups

浮点遗传算法在非线性方程组求解中的应用

Solving the Non-linear Equation for the Damped Vibration by the Resolution Method

分解法求解非线性阻尼振动

The increment identical stiffness iteration method was used to solve non-linear equation set ;

采用增量等刚度迭代法进行非线性有限元方程组的求解，能较好的模拟位移、应力、应变随荷载的变化过程；

Author uses a weighted function to express material shape property in viscoplastic non-linear equation .

对这种材料，作者在材料的粘弹性非线性本构方程中引入了一个加权函数来表示材料形状特性。

The blow up solution and locally interative solution of the first kind non-linear equation

一类非线性方程解的blowup及局部迭代解

Nomography solution of the transcend equation the new programmes solving roots of non-linear equation

超越方程的诺模图求解对分区间套法超越方程求根程序的新应用

The method of equivalent specific heat was adopted during the discretization of the non-linear equation of conduction .

相变导热方程采用了显热容法进行分析处理。

In this paper , singular boundary value problems of non-linear equation system on a half-line will be considered .

本文主要研究半直线上非线性方程组奇异边值问题解的存在性。

The system parameters can be obtained by solving a non-linear equation set constructed by the samples of the process step output response .

这种方法可以由系统的阶跃响应采样数据构造非线性方程组，通过对方程组求解估计出系统的参数。

The ARH change laws of concrete with water to binder ratio lower than 0.4 can be expressed with a non-linear equation .

水胶比小于0.4的混凝土其自身相对湿度变化规律可用非线性方程表征。

Totally implicit difference scheme and linear iterative in each time step are used to solve the non-linear equation of coupled moisture and heat transfer .

应用系数效应滞后的全隐式有限差分格式并在每段时间采用线性迭代法来处理非线性水热耦合迁移方程。

For this large-scale non-linear equation , a blocked parallel algorithm for the power flow Jacobi matrix equation is designed based on the parallel triangular decomposition .

对于这一大规模的非线性方程，文中设计了求解潮流计算的雅可比矩阵方程的并行算法，即结合并行化三角分解法的分块法。

LSP parameters can be obtained by solving an N-order non-linear equation relating to the linear predictive coding ( LPC ) coefficients .

LSP参数可以通过求解一个与线性预测系数（LPC）相关的非线性N阶方程得到。

A series of non-linear equation group are obtained through discretization of governing equations , boundary conditions , and evaporation front boundary condition with fully implicit finite difference technique .

运用数值计算方法，采用全隐式有限差分，对控制方程、边界条件、蒸发界面动态边界进行了离散，得到了一系列非线性方程组。

Aiming at reducing the morbidity of the non-linear equation and effect caused by the non-equality of the medium , an improved Newton method based on Newton method is put forward .

针对非线性方程病态性、非均匀介质对物体成像效果的影响，提出了以牛顿法为基础的改进牛顿法。

In the research of feature modeling incorporating constraint process , automatic feature identification of composite surface and complex surface and static solution of large scale non-linear equation set are still research hot topic .

但在具体研究过程中，集成约束的逆向工程CAD特征建模中复合曲面和复杂曲面特征的自动识别及大型非线性方程组的稳定求解问题仍然是研究的热点。

Based on phase-modal transformation technique and distributed parameter transmission line model , the algorithm utilizes quasi-Newton method to resolve non-linear equation sets allowing for data sampling asynchronization at both terminals .

该算法采用相-模变换技术和分布参数线路模型，考虑了双端数据的不同步问题，运用拟牛顿法迭代求解非线性方程组。

Except the Analysis of Variance Estimator , these approaches all need to solve a non-linear equation , which does not have explicit solution , and only has an iteration solution in general .

除了方差分析法外，他们都需要解一个非线性方程组，一般都没有显式解，只能获得迭代解。

An improved algorithm based on Newton method is put forward , which intend to ameliorate the morbidity of the non-linear equation and to reduce the effect caused by the non-equality of the medium .

在逆问题的研究中提出了一种基于牛顿法的改进算法以改善非线性方程病态性，并减少介质的非均匀性对成像的影响。

Discussed commonly used probability statistical distribution and numerical computing methods for solving mathematic problem ( such as non-linear equation and numerical integration , etc. ) , which offered scientific basis for fetching value of the data ;

讨论了常用的概率统计分布和解决数学问题的数值计算方法（解非线性方程和数值积分等），为数据的取值提供科学依据；

In order to solve the problem on the reliability calculation of dependent and non-normal stochastic vector in regard to non-linear equation of limit state . Method of second moment matrix ( Sc-M method ) is presented .

为了解决非独立非正态随机向量关于非线性极限状态方程的结构可靠度计算问题，本文提出了二阶矩矩阵方法（简记为Sc&M法）。

The paper changes the non-linear equation into a non-linear parabolic equation by a kind of change and proves the blow up of solution of its initial boundary value problem in finite time by using convexity method and maximum principle .

本文以一种变换。化非线性方程为非线性抛物型方程，并利用凸性方法及最大值原理证明其初边值问题的解于有限时间内blowup。

The complex pressure distribution in the model makes the fluid flow computation of horizontal well be fairly complicated , so the non-linear equation describing fluid flow performance has been applied for space iterative computation followed by time iterative computation .

由于所用气藏模型压力分布较为复杂，使得水平井的流动计算变得相当复杂，应用表征流动特性的非线性方程对空间进行迭代计算，再向时间推进。

Under the assumption that the permeability varies with the piecewise experimental law of the pressure drop , the equation for steady radial flow and the non-linear equation for transient flow through porous media were derived and solved .

本文基于渗透率随压力呈分段的指数变化规律，建立并求解了平面径向稳定渗流方程和非线性不稳定渗流方程。

With the use of the numeric iteration method for the derived non-linear equation , the solutions of the limit cycle on certain freight car bogie under the two conditions of with and without consideration of wheel-rail contact are given .

通过对导出的非线性方程运用数值迭代方法求解，给出了某货车转向架在不考虑和考虑轮缘接触2种情况下的极限环解。

It is proposed that to testify the regression equation and the regression level , non-linear equation should be converted into linear equation and also that related coefficient , manifestation level and remaining standard difference rate should all be exploited for the same purpose .

对非线性回归方程，要化为线性方程，用相关系数、显著性水平、残余标准差率来检查回归方程和拟合程度。

Therefore , energy minimization is often used as constraints in curve fairing . But , the curvature expression in the exact energy formula is a rational function , which results in non-linear equation system . Thus , the approximate energy is adopted to avoid non-linear problem .

由于精确能量公式中的曲率表达式是有理函数，在能量的极小化过程中要求解非线性方程组，因此在能量极小约束问题中通常都是采用近似能量模型。

The method can calculate flux assignment and node pressure of heating network under different conditions by counting non-linear equation group according to network inherent parameter , solve the calculation problem of asymmetric network as the result of fault and remedy the shortcoming of the method for planar network .

该方法可根据网络的固有参数通过求解非线性方程组给出不同工况下管网的流量分配和节点压力，还可解决故障导致的管网水力不对称问题，从而弥补了平面网方法的不足。

A Difference Scheme for a Kind of Non-linear Parabolic Equation

一类非线性抛物型方程的有限差分格式