查询词典 impulsive force

Finally, the existece of periodic solution for the impulsive management is also discussed.

最后讨论进行脉冲收获和管理的周期解存在性问题。

In Chapter 3, a classical periodic Lotka-Volterra predator-prey system with impulsive effects are investigated.

第三章提出并系统地研究了具脉冲效应的周期Lotka-Volterra捕食-被捕食系统，分析了系统的各种正解的动力学行为。

In Chapter 4, the effect of impulsive perturbation on predator-prey models is investigated.

第四章讨论脉冲干扰对捕食模型的影响。

In Chapter 2, by using a class of piecewise continuous Lyapunov function and the method of analysis, we study existence, uniqueness and stability of impulsive Volterra intergro-differential equations.

在第二章中，主要利用分析技巧和分段Lyapunov函数等方法，讨论了含脉冲的Volterra积分微分方程解的存在性和其零解稳定性的充分或必要条件。

Horizontal Well ; Piecewise Smooth Dynamical Systems ; Impulsive Differential Systems ; Optimal Control ; Stability ; Initial Time Difference

国家自然科学；水平井；分段光滑动力系统；脉冲微分系统；最优控制；稳定性；初始时刻偏差

When he had reached the upper landing an impulsive sidewise glance assured him, more clearly than before, of her uncommonly prepossessing appearance.

他走到了楼梯顶，禁不住又回过头来侧眼看了看，这才看清她那非常动人的面貌。

By means of the comparison principle and the method of upper and lower solution,the corresponding sufficient conditions under which the models have a solution or no solution are obtained. If other parameters are given,the controllable parameters such as the population of release and the times of impulsive harvest are estimated respectively.

基于比较定理和上下解方法，分别获得了模型有解或无解的充分条件，估计了相关可控参数，即脉冲投放模型中的投放量以及脉冲收获模型中的脉冲收获次数。

He poured out words of gratitude and tenderness with impulsive ravishment.

他呢，滔滔不绝，热情洋溢地向她表示了感激和体贴。

Easy5 provides accurate, sure multi-domain moulding and model of impulsive fleshly systems. Using Easy5, whatever of the most reputable companies in the concern are evaluating grouping take action with CAE to turn fleshly prototypes, revilement cost, and qualify their creation utilization process.Dynamic systems, those systems whose activity as a duty of instance is important, are typically circumscribed using first-order figuring equations.

MSC Easy5诞生于波音公司，是由各学科领域富有经验的工程师和数值计算专家根据实际的工程问题和需求合作开发的，经过近30年的不断积累和大量工程问题的检验，发展成为独一无二的控制与多学科动态系统仿真分析工具，可谓波音公司工程仿真经验的结晶，被广泛应用于航空航天、国防、汽车、工程设备、重型机械等工业领域。

Considering the characters of the waveform of impulsive noise, on the base of robust statistics, the thesis uses the robust statistical function mending the customary adaptive algorithm based on second order statistic, applies it to the system identification problem.

考虑到α-稳定分布波形的性质，在稳健估计理论的基础上，利用稳健估计函数改进了原有的基于二阶矩的自适应算法。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&