极限环

A recursive formula is derived to compute singular point values at infinity.

摘 要：研究了一类三次系统无穷远点的极限环分支问题。

Firstly,the stability and uniqueness of limit cycles of a kind of autonomous nonlinear dynamical system is discussed.

讨论了一类自治系统极限环的唯一性与稳定性。

For two kinds of servo systems that the output can be directly measured or not directly measured, the direct compensation method and the BP neural network compensation method for backlash nonlinearity were presented. Simulation results for a tank barbette tracking system show that these two kinds of compensation methods can successfully eliminate the influences produced by backlash nonlinearity, and improve the system accuracy.

针对输出直接可测和不直接可测两种伺服系统，提出了间隙非线性的直接补偿法与BP神经网络补偿法，对坦克炮塔跟踪模型进行的计算机仿真表明这两种方法均可成功消除间隙非线性引起的极限环，提高系统精度。

In this paper, we discuss the uniqueness limit cycle and the question of bifurcate about a class of general Liénard equation in the system.

本文研究了系统中一类属于广义liénard 型方程的系统，即对系统在m、n、、同号情况下，讨论了它的极限环的存在唯一性及分支问题。

In this paper, we discuss the uniqueness limit cycle and the question of bifurcate about a class of general Liénard equation in the system .

当二次系统添加一个三次项变为三次系统后，这两个系统在原点附近的极限环的变化情况是否存在某种联系，亦是一个十分有趣的问题。

In this thesis, the limit cycles bifurcated from some kinds of polynomial systems are investigated using the methods of bifurcation theory and qualitative analysis.

本文利用分支理论和定性分析的方法，借助于计算机等辅助工具对几类多项式系统的极限环分支问题进行了研究。

This number is closely related to the number of limit cycles which are bifurcated from the generic perturbed Hamiltonian systems 〓.

这个数目与n次通有的Hamilton扰动系统〓分岔出的极限环数目密切相关，其中〓。

Using qualitative analysis methods, the paper studies the boundedness of solutions and the existence of limit cycles.

利用定性分析的方法，讨论了模型在收获率条件下平衡点的稳定性，解的有界性，极限环的存在性问题。

Using general qualitative analysis methods, we study the boundedness of solutions, the properties of equilibrium and the existence of limit cycles.

利用常用的定性分析方法，讨论了模型在收获率条件下的解的有界性、平衡点的性态及极限环的存在性问题。

Transitions of different neuronal firing patterns in the Chay model are explored by numerical simulation and bifurcation analysis of limit cycle, with respect to three firing sequences observed in experiments on neural pacemakers.

本文利用神经元Chay 模型，对实验中观察到的三种放电节律模式序列进行数值模拟，并应用余维1极限环分岔分析研究了其产生机理。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。