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11.12.2007. :: Synchronization of coupled electrochemical oscillators

Prof. dr Vilmos Gaspar (Institute of Physical Chemistry, University of Debrecen, HUNGARY) odrzace predavanje pod naslovom Synchronization of coupled electrochemical oscillators, u utorak 11. 12. 2007. takodje u 16h u Sali za sednice Fakulteta za fizicku hemiju, Studentski Trg 12-16, I sprat.

Kratki sadrzaj predavanja:

In a previous study, we investigated the effect of global coupling on the dynamics of interacting electrochemical oscillators of N-type (electrodissolution of Ni) where the double-layer potential acts as a positive feedback variable. Here, we report on studying the effect of global coupling on nonidentical electrochemical oscillators of S-type (electrodeposition of Zn) where the electrode potential acts as an essential negative feedback variable. The strength of global coupling between the electrodes is systematically varied while holding all other parameters constant. Several different scenarios for synchronization and partial synchronization have been observed in the dynamics of the coupled system (128 electrodes). Synchronization is characterized by an order parameter, animated phase portraits based on Hilbert transforms, the average phase shift between the oscillators and bifurcation diagrams.
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