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【期刊论文】Reducing lateral vibration of a rotor passing through critical speeds by phase modulating
陆启韶
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-1年11月30日
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陆启韶, Yang Zuodong and Lu Qishao
,-0001,():
-1年11月30日
The prior estimate and decay property of positive solutions are derived for a system of quasilinear elliptic differential equations first. Then the result of nonexistence for differential equation system of radially nonincreasing positive solutions is implied. By using this nonexistence result, blow-up estimate for a class quasilinear reaction-diffusion systems (non-Newtonian filtration systems) are established to extend the result of semilinear reactiondiffusion (Fujita type) systems.
Blow-up,, Quasilinear parabolic system,, Non-existence.,
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【期刊论文】CHAOS CONTROL BY DELAYED IMPULSIVEFEEDBACK IN ROTOR SYSTEMS WITH GRAZING RUB-IMPACT
陆启韶, Q.S. Lu, S.J. Zhang and L. Jin
Series B: Applications & Algorithms 11a(2004)171-177,-0001,():
-1年11月30日
This paper deals with grazing rub-impact dynamics in a rotor system by using the rub-impact Poincar
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【期刊论文】Integer multiple spiking in the stochastic Chay model and its dynamical generation mechanism
陆启韶, Zhuoqin Yang a, Qishao Lu a, *, Huaguang Gu b, Wei Ren b
Physics Letters A 299(2002)499-506,-0001,():
-1年11月30日
Integer multiple spiking induced by Gaussian white noise in the stochastic Chay system may occur near a subcritical Hopf bifurcation of the corresponding deterministic system without external periodic forcing. The deterministic Chay system near the subcritical Hopf bifurcation can exhibit a damped subthreshold oscillation of membrane potential, and can easily fire a spike in response to some kinds of weak pulses. Therefore, on account of the characteristic of Gaussian white noise, it can be shown that the deterministic Chay system supplied with certain weak pulses can fire integer multiple spiking similar to that in the corresponding stochastic system. Furthermore, on the light of the characteristic of the unstable limit cycle "before" a subcritical Hopf bifurcation in the deterministic Chay model, it can be explained that integer multiple spiking only appears in a certain range of the parameter VK.
Integer multiple spiking, Interspike intervals, Subcritical Andronov-Hopf bifurcation, Pulse
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