New types of mixed-mode periodic oscillations in the Belousov-Zhabotinsky reaction in continuously stirred tank reactors

Complex periodic oscillations with small amplitude oscillations close to th e maximal value of a large amplitude oscillation followed by other small am plitude oscillations close to the minimal value of the next largest amplitu de oscillation are found in the Belousov-Zhabotinsky (B-Z) reaction (bromat e-malonic acid-ferroin) in CSTR. Oscillations showing identical patterns ar e obtained in a simple model proposed recently for a qualitative descriptio n of transient and asymptotic oscillations observed in the B-Z system.