Faculty of Chemistry - Group of Complex Systems Dynamics
MEMBERS
Dr. Lavinia Onel
contact: alavi@uaic.ro
http://teclu.chem.uaic.ro/onel/
Dr. Adrian Birzu
phone: +40(232)201344
email: abirzu@uaic.ro
http://teclu.chem.uaic.ro/abirzu/
Prof.Dr. Gelu Bourceanu
email: gelub@uaic.ro
Interests and main work on FUNCDYN
Dr. Lavinia Onel and Prof. Gelu Bourceanu
I. Functional Role of the Inhibitors in the Briggs-Rauscher (BR) Reaction
The BR reaction is known as a test tool to measure the activity and the concentration of different antioxidants. This is an important functional dynamic aspect of the BR reaction where a change in the dynamics is applied for chemical analysis. Our aim is to answer to the question: „How can an inhibitor plays its functional role in the mechanism of BR reaction?” [1,2].
[1]. L. Onel, G.Bourceanu, Z.Noszticzius, M. Wittmann, G. Szabó, „I(+1) Transfer from Diiodomalonic Acid to Malonic Acid, and a Complete Inhibition of the CO and CO2 Evolution in the Briggs-Rauscher Reaction by Resorcinol”, J. Phys. Chem. A 112(46), 11649-11655 (2008).
[2]. L.Onel, G. Bourceanu, T. Lawson, J. Fülöp, M. Wittmann, Z. Noszticzius, N. Muntean, G. Szabó “Functional role of an inhibitor: complete inhibition of CO and CO2 evolution in the Briggs-Rauscher (BR) reaction by resorcinol, and search for the reactions producing CO and CO2” (poster), 2nd ESF FuncDyn workshop, Rothenburg ob der Tauber, September 2008.
II. Mechanism of the Classical Belousov-Zhabotinsky Reaction [3,4]
[3]. L.Onel, Z. Noszticzius, M. Witmann, K. Pelle, L. Sciascia J.Phys.Chem. A 111 (32), 7805-7812 (2007).
[4]. L. Onel, Z. Noszticzius, M. Witmann, K. Pelle, L. Sciascia „CO evolution in BZ reaction” (plenary lecture), 1st ESF FuncDyn workshop, Haslev, May 2007.
Dr. Adrian Bîrzu
I. Modeling of Globally Coupled Arrays of Oscillators
Arrays of coupled oscillators are widely spread in complex biological or chemical systems. We consider an array of oscillators, and study the function that can be played by a time dependent global coupling. Investigations are done using
i. An array of globally coupled FitzHugh-Nagumo oscillators with a time dependent global coupling.
ii. An array of globally coupled SNDR electrochemical oscillators.
II. Electrochemical systems often exhibit nonlinear behaviors. Our research is centered on studying and modeling mathematically and numerically the electrode spatio-temporal dynamics for 2D electrodes in 3D electrochemical cells.
[1]. A. Bîrzu, K. Krischer, Time dependent globally coupled array of FitzHugh-Nagumo oscillators, manuscript in preparation, 2008.
[2]. A. Bîrzu, K. Krischer, "Modeling of globally coupled arrays of oscillators" (plenary lecture), FuncDyn workshop, Rothenburg, Germany, September 2008.
[3]. I. Grosu, Martin Hasler, A. Bîrzu, “Synchronization in chains of oscillators” (poster), FuncDyn workshop, Rothenburg, Germany, September 2008.
