Using the annual data from 1980 to 2002 the parameters of the differential equation were estimated.

This paper discusses a new partial differential equation model for resolution enhancement of image.

讨论一种新的图像分辨率增强的偏微分方程模型.

It takes neither differential equation nor Laplace transformation. Instead , some algebraic Methods: Will do.

该法既不用微分方程,也不需拉普拉斯变换, 主要地应用一些代数方法即可完成.

Essentially, the opposite reaction kinetics process is a process of resolving the order ordinary differential equation.

对峙反应动力学过程, 其实质是一个求解一阶常微分方程的过程.

In this paper , we discuss and replenish Liouville formula of linear differential equation.

对线性微分方程中的刘维尔公式做了适当的补充和讨论.

An effective method for solving a partial differential equation of secondary hydrocarbon migration is put forward.

本文给出了一种高效率求解油气二次运移偏微分方程的方法.

Newton's second law can be expressed as a differential equation.

牛顿第二定律可表达成微分方程.

Secondly, the solutions to the differential equation are obtained by means of Laplaces transform method.

建立液压伺服机构的微分方程和导出传递函数.

This differential equation group of heat and mass process in the plate evaporative coolers theoretically.

对热湿交换过程进行质量与能量衡算,建立逆流板式蒸发冷却器传递过程的数学模型.

His research interest focuses on the mathematical biology and partial differential equation.

目前其主要研究方向是生物数学和偏微分方程.

These problems are characterized by a governing differential equation and associated initial conditions.

它通常由一个微分方程以及相应的初始条件来刻画.

Since 1950 the stability of differential equation has been developed and drawn the researcher s attention.

从上世纪50年代开始,微分方程的稳定性有较大发展,并且越来越引起国内外研究者的注意.

A differential equation model describing the biochemical reaction system of autocatalysis is studied.

本文研究一类描述自催化生化反应系统的微分方程数学模型.

Multielement function calculus, infinite series , ordinary differential equation, partial derivatives, multiple integrals and so on.

本课程主要介绍多元函数微积分学, 无穷极数,常微分方程, 偏微分方程, 多重积分等内容.

The boundary value ( problems ( BVP ) ) of the higher order ordinary differential equation were studied.

主要研究共振条件下高阶多点边值问题解的存在性.

This method is based on Ito stochastic differential equation characteristic of the state variables.

此研究方法是以伊藤随机微分方程式为主.

Wavelet and Partial Differential Equation ( PDE ) are the main methods in removing image noise.

小波方法和偏微分方程方法是图像去噪中的主要方法.

The sufficient conditions of impulsive exponential stabilization for a kind of nonlinear differential equation are obtained.

具体研究了一类分离变量型非线性常微分方程的脉冲镇定问题,得到了该方程可脉冲指数镇定的充分判据.

The direct integral formula of high order linear differential equation with constant coefficients is given.

给出高阶常系数线性微分方程的直接积分公式.

Inverse problem of partial differential equation is an interdisciplinary and frontier science.

偏微分方程反问题的研究领域非常广阔.

The theory of the solution of partial differential equations remained to be fashioned.

偏微分方程解的理论还有待于形成.