Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (9): 1856.

• Articles • Previous Articles     Next Articles

Inducement and Enhancement of Coherence Resonance in Chemical Oscillation System

SHI Jian-Cheng*, LUO Min, DONG Tao, CHEN Han-Guang   

  1. Department of Chemistry, Guangxi Teachers Education University, Nanning 530001, China
  • Received:2008-08-11 Online:2009-09-10 Published:2009-09-10
  • Contact: SHI Jian-Cheng. E-mail: mfai668@sina.com
  • Supported by:

    广西教育厅科研基金(批准号: 200707LX178)资助.

Abstract:

The effects of multiplicative noise and additive noise on the coherence resonance(CR) in chemical oscillation system were studied by numerical simulation method. It is shown that, when the system subjets to additive and multiplicative noises simultaneously, its coherence resonance strength is stronger than that for the system induced by one of the two noises. The system can exploit multiplicative noise better than additive noise to enlarge its control parameter range of the oscillation state. Between the control parameter threshold effect and noise effect, the former plays a dominative role for CR occurrence and enhancement. Moreover, when the system is modulated by multiplicative noise and additive noise, respectively, there exists a critical noise intensity for destroying the difference of the dynamical behaviour between two noises.

Key words: Noise; Control parameter; Coherence resonance; Chemical oscillation system

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