查询词典 differential method

A method of constructing the basic set of solutions of a system of homogeneous constant-coefficient differential equations is introduced.

介绍构造常系数齐线性微分方程组的基本解组的一种方法，并把这种方法进行改进，使求解更为简捷。

A new method for calculating equivalent overall reaction rate was bring forward,in which the gradient differential coefficient of local Damkohler number instead of temperature,on the surface of the hot rod was adopted as an ignition criterion in the paper.

据此提出了一种新的计算等效总体反应率的方法，同时采用热棒表面处的当地Damkohler数的梯度替代传统的温度梯度作为着火判据。

The purpose of the paper is to investigate the convergence of the mixed finite element method for the initial-boundary value problem for the Hyperbolic type integro-differential equation and Hyperbolic type equation.

本文讨论了双曲型和双曲型积分微分方程的标准混合有限元和H~1-Galerkin混合有限元方法的L~2模和H~1模的误差估计。

In this paper, we used the regularization method and the best disturbed iteration to solve such more extensive equations: every kind of positive problems and inverse problems of the hyperbolic partial differential equation and parabolic equation. We give homologous methods to solve the positive problems and inverse problems of nonlinear Burgers equation and Boussinesq equation.

本文应用正则化方法和最佳摄动量法，解决了一类更广泛的双曲型和抛物型偏微分方程的各类正问题及反问题，对非线性的Burgers方程及Boussinesq方程的正问题及反问题，也给出了相应的求解方法。

A new hyperbolic function s method for finding exact solutions of nonlinear partial differential equations;2. The control strategy based on hyperbolic function is proposed and relative mathematical model is built.

为此讨论了车辆变速行为的一般规律，提出基于双曲函数的车辆变速控制策略，建立了相应的数学模型，并针对实例进行了具体分析。

The underlying method is based on the simple wave solutions of a system of hyperbolic partial differential equations.

基本的方法是以双曲型偏微分方程组的简单波解为根据的。

A new H^1-Galerkin mixed finite element method for hyperbolic type integro-differential equations is studied.

在半离散格式下，本文针对一类双曲型积分微分方程，研究了一个新的H^1-Galerkin混合有限元方法。

In order to refine a method for defence against at least one attack made by means of differential power analysis on at least one hyperelliptic cryptosystem, in particular at least one hyperelliptic public key cryptosystem, which is given by at least one hyperelliptic curve of any genus over a finite field in a first group, where the hyperelliptic curve is given by at least one co-efficient, so that an essential contribution can be made towards an efficient and secure implementation of the hyperelliptic cryptosystem, it is proposed that the hyperelliptic curve and/or at least one element of the first group, in particular at least one in particular reduced divisor and/or at least one intermediate result of a scalar multiplication, is randomised.

为了改进用于防御在至少一个超椭圆密码系统中、特别是在至少一个超椭圆公共密钥密码系统中通过微分功率分析作出的至少一个攻击的方法，该超椭圆公共密钥密码系统是通过在第一组中有限域中任何种类的至少一个超椭圆曲线给出的，其中超椭圆曲线由至少一个系数给出，以使得可以对于超椭圆密码系统的有效而安全的实施方案作出重要的贡献，提出将超椭圆曲线和/或第一组的至少一个元素、特别是至少一个特定的减小的除数和/或标量乘法的至少一个中间结果进行随机化。

The objective of this study is to explore how the method of differential quadrature can be used to solve the motion of incompressible viscous fluid in the complexflow passage.

本文的主要目的是如何将微分求积法应用到求解复杂区域内不可压缩粘性流体的流动问题。

In this thesis,the differential quadrature method is applied to numericallysolve flow problems of incompressible viscous and viscoelastic fluids.

本文将该方法应用于不可压缩粘性流体和粘弹性流体流动问题的数值求解。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。