In this paper,We study positive equilibrium kind of n-species food chain model under pollutde environment.
本文研究了污染环境中n阶食物链系统的正平衡点问题,得到了该系统存在唯一正平衡点的充要条件,并且在n=2和n=3时证明了正平衡点的稳定性。
New sufficient conditions for the global attractivity of the positive equilibrium of equation is obtained, which improve some recent results in literature.
讨论平方Logistic差分方程xn + 1-xn=rnxn(1 +bxn -kn-cx2 n -kn) ,n =0 ,1 ,… ,其中 {rn}是非负实数列 ,{kn}是非负整数列 ,{n -kn}非单调递减 ,且limn→∞(n -kn) =∞ ,b∈ (-∞ ,∞ ) ,c∈ (0 ,+∞ ) ,给出了保证方程每一正解趋于正平衡点的充分条件 ,所得定理推广和改进了已有结果。
The results obtained prove that a locally stable positive equilibrium point also contains global stability.
考虑了n维Lotka Volterra捕食被捕食链型系统 ,证明了正平衡点的局部稳定性蕴含了全局稳定
Global stability of a positive equilibrium point on two-species competition model
两种群竞争模型正平衡点的全局稳定性
Stability in the large of positive equilibrium point is obtained.
用化学动力学的理论建立了一个二次自催化反应的数学模型,并用定性理论对模型作了定性分析,得到了该模型的正平衡点的全局稳定性的结果。
The local progressive stability around the positive equilibrium point M is discussed by using characteristic value law,and a necessary and sufficient condition is gained.
研究了3种群相互作用构成的群落的Volterra模型,利用特征值法讨论正平衡点M的局部渐进稳定性,得到一个充要条件;同时构造V函数得到M点全局稳定的充分条件。
By using the qualitative theory of differential equation and constructing Ляпунов functions,the bounded of time-delay and sufficient condition that guarantees positive equilibrium of system asymptotic stable are obtained.
采用Ляпунов函数方法,证明病毒感染的时滞免疫反应动力学模型dT/dt=γ-dT(t)-kT(t)V(t)dI/dt=kT(t)V(t)-δI(t)dV/dt=pI(t)-cV(t)的正平衡解稳定性,给出时滞的估计,证明时滞免疫反应系统的正平衡解渐近稳定和全时滞稳定条件。
To minimise the possibility of any abuse of power, the ICAC is subject to a stringent system of checks and balances.
廉政公署受到严格的监察与制衡机制监管,以尽量减低该署滥用权力的可能。
Explore Zhu Yuan-zhang s Equilibrantion-controlling Thonght by Viewing of His Supervision System;
从明初监察制度看朱元璋的制衡思想
LCMS (Launch Control and Monitoring System)
发射控制与监察系统
The Design and Implementation of Administrative Examination and Governmental Monitoring System
衡阳市行政审批电子监察系统的设计与实现
Further Study on Public Opinion and Public Opinion Supervision;
舆论与舆论监督:正义、公正与制衡
Research on the Civil Prosecutorial Supervision
民事检察监督的实证考察与制度保障
On the Dynamic Balance between Administrative Supervision Regulations and Power Framework;
行政监督制度与权力结构的动态平衡
A Study on Social Supervision and Check System of Procuratorial Power--the exploration of the relationship between supervision of media and procuratorial power independent execution;
论检察权的社会监督制约机制——传媒监督与检察权独立关系之探究
tunnel ventilation and monitoring and control systems
隧道通风与中央监察及管制系统
project monitoring and cost system
项目监察与成本计算制度
The Reform and Improvement of Civil Prosecutorial Supervision System;
我国民事检察监督制度的改革与完善
Institutional Fault and Innovation Way of Land Supervision;
我国土地监察的制度缺陷与创新路径
Historical Perspective of the Official Examination and Supervision System of the Tang Dynasty;
唐代职官考核与监察制度的历史透视
The Reform and Perfection of Civil Procurator Supervision System in China;
中国民事检察监督制度的改革与完善
Conflict and Balance between Consolidated Supervision of Cross-border Bank and Financial Private Right;
跨国银行并表监管与金融隐私权的冲突及制衡
On Dynamic Balance between Administrative Supervision System and Power Structure;
论行政监督制度与权力结构的动态平衡
Reviewing the Dynamic Balance between Administrative Supervision System and Power Structure
再论行政监督制度与权力格局的动态平衡
This new system covers limits of authority and control and balance, supervise and going public, education and punishment.
这种新机制内容主要有:限权与制衡、监督与公开、教育与惩处等。
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