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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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