微分

In the dissertation, we consider a parameterized delay differential equation as followswhereλandμare two real parameters.

我们考虑如下参数化的时滞微分方程其中λ和μ为参数。

One of them is piecewise continuous argument delay differential equation, simply called EPCA.

其中第一类为分段连续的时滞微分方程，简称为EPCA。

T-stability of the Euler-Maruyama method was studied for stochastic delay differential equation of neutral type.

研究了中立型随机延迟微分方程Euler-Maruyama方法的T-稳定性。

The existence of periodic solutions of a neutral integro-differential equation with infinite delay was studied.

摘要本文考虑具无穷时滞中立型积分微分方程周期解的存在性。

Keywords: Delay differential equation;Numerical method;Numerical stability

中文关键词：延时微分方程；数值方法；数值稳定性

Especially, you can see more delay phenomenon in machine control system, and set up a math model for this system becomes a major application of the delay differential equation and a signification applied problem.

对存在参数的微分方程在临界状态下，解的情况常常会出现分支问题，尤其是在方程周期解存在的情况下，很有可能出现Hopf分支。

Delay differential equation is applied widely in many fields, such as Mechanics, Physics, Life Sciences, Economics, Medical Sciences and so on.

时滞微分方程在力学、物理学、生命科学、经济学、医学等诸多领域都有广泛的应用。

A new analytical system has been developed for the determination of total gaseous selenium content in the atmosphere by honeycomb denuder collection followed by measurement with differential pulse cathodic stripping voltammetry.

建立了一种新型的用于检测大气中气态硒的分析系统，即蜂窝状扩散管采集微分脉冲阴极溶出伏安法系统。

Many natural phenomena and physical laws can be described by time dependent nonlinear differential equations, such as heat conduction equation, sound wave and elastic wave equation, reaction diffusion and convection diffusion equation, fluid and aerodynamics equations, etc.

大多数的自然现象与物理规律都可归结为与时间相关的非线性偏微分方程，诸如热传导方程、声波与弹性波方程、反应扩散与对流扩散方程、流体与气体力学方程组等发展方程。

And then the influence of two of the damage models, the Kachanov and the gradient dependent constitutive equations, on the well posed properties of the fundamental equations in continuum damage mechanics is studied according to th.

首先从非局部理论出发，推导了应变梯度损伤本构方程；然后利用一阶拟线性偏微分方程组的特征理论，在一维弹性损伤情况下分析了两种不同的本构模型，即 Kachanov损伤本构方程与应变梯度损伤本构方程，对连续介质损伤力学基本方程适定性的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。