Zh. Hou et Hw. Xin, Noise-induced oscillation and stochastic resonance in an autonomous chemical reaction system, PHYS REV E, 60(6), 1999, pp. 6329-6332
autonomous three-variable chemical reaction model, which has been developed
to describe kinetic oscillations in the NO+CO reaction, subjected to exter
nal parametric noise, is investigated. Noise-induced coherent oscillations
(NICO's) in the absence of deterministic oscillations are observed near sup
ercritical Hopf bifurcation points, and the NICO strength goes through a ma
ximum with increments of noise intensity, characteristic of the occurrence
of stochastic resonance. On the other hand, these phenomena do not appear i
f the limit cycle is created by a saddle-loop bifurcation. [S1063-651X(99)0
7511-X].