TY  - JOUR
AU  - Maćešić, Stevan
AU  - Čupić, Željko
AU  - Ivanović-Šašic, Ana
AU  - Anić, Slobodan
AU  - Radenković, Mirjana
AU  - Pejić, Nataša
AU  - Kolar-Anić, Ljiljana
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1901
AB  - In this paper, we intend to show the importance of the bifurcation analysis in understanding of an oscillatory process. Hence, we use the bifurcation diagram of the Bray-Liebhafsky reaction performed in continuous well-stirred tank reactor under controlled temperature variations for the determination of the activation energies as well as rate constants of particular steps appearing in the kinetic model of oscillatory reaction mechanism. This approach has led us to the development of general procedure for treatment of experimentally obtained data and extracting kinetic parameters from them, which was very important considering that some rate constants of the already proposed model could not be determined experimentally and have to be fitted (or guessed). Also, the proposed approach has the potential to inspire the refinement of already proposed models and the development of a new one that will be able to reproduce experimentally obtained systems dynamical features more successfully. In particular, the dynamic states of the Bray-Liebhafsky oscillatory reaction have been analyzed experimentally and numerically using already proposed model together with qualitative and quantitative analysis of bifurcation diagrams in both cases.
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Bifurcation analysis: a tool for determining model parameters of the considered process
VL  - 123
IS  - 1
SP  - 31
EP  - 45
DO  - 10.1007/s11144-017-1324-6
ER  - 

@article{
author = "Maćešić, Stevan and Čupić, Željko and Ivanović-Šašic, Ana and Anić, Slobodan and Radenković, Mirjana and Pejić, Nataša and Kolar-Anić, Ljiljana",
year = "2018",
abstract = "In this paper, we intend to show the importance of the bifurcation analysis in understanding of an oscillatory process. Hence, we use the bifurcation diagram of the Bray-Liebhafsky reaction performed in continuous well-stirred tank reactor under controlled temperature variations for the determination of the activation energies as well as rate constants of particular steps appearing in the kinetic model of oscillatory reaction mechanism. This approach has led us to the development of general procedure for treatment of experimentally obtained data and extracting kinetic parameters from them, which was very important considering that some rate constants of the already proposed model could not be determined experimentally and have to be fitted (or guessed). Also, the proposed approach has the potential to inspire the refinement of already proposed models and the development of a new one that will be able to reproduce experimentally obtained systems dynamical features more successfully. In particular, the dynamic states of the Bray-Liebhafsky oscillatory reaction have been analyzed experimentally and numerically using already proposed model together with qualitative and quantitative analysis of bifurcation diagrams in both cases.",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Bifurcation analysis: a tool for determining model parameters of the considered process",
volume = "123",
number = "1",
pages = "31-45",
doi = "10.1007/s11144-017-1324-6"
}

Maćešić, S., Čupić, Ž., Ivanović-Šašic, A., Anić, S., Radenković, M., Pejić, N.,& Kolar-Anić, L.. (2018). Bifurcation analysis: a tool for determining model parameters of the considered process. in Reaction Kinetics, Mechanisms and Catalysis, 123(1), 31-45.
https://doi.org/10.1007/s11144-017-1324-6

Maćešić S, Čupić Ž, Ivanović-Šašic A, Anić S, Radenković M, Pejić N, Kolar-Anić L. Bifurcation analysis: a tool for determining model parameters of the considered process. in Reaction Kinetics, Mechanisms and Catalysis. 2018;123(1):31-45.
doi:10.1007/s11144-017-1324-6 .

Maćešić, Stevan, Čupić, Željko, Ivanović-Šašic, Ana, Anić, Slobodan, Radenković, Mirjana, Pejić, Nataša, Kolar-Anić, Ljiljana, "Bifurcation analysis: a tool for determining model parameters of the considered process" in Reaction Kinetics, Mechanisms and Catalysis, 123, no. 1 (2018):31-45,
https://doi.org/10.1007/s11144-017-1324-6 . .

TY  - JOUR
AU  - Pejić, Nataša
AU  - Kolar-Anić, Ljiljana
AU  - Maksimović, Jelena
AU  - Janković, Marija M.
AU  - Vukojević, Vladana
AU  - Anić, Slobodan
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1078
AB  - The temporal dynamics of the Bray-Liebhafsky reaction (iodate-based catalytic decomposition of hydrogen peroxide in an acidic aqueous solution) was experimentally characterized in a continuous stirred tank reactor by independently varying the temperature and the mixed inflow hydrogen peroxide concentration. When the temperature was the bifurcation parameter, the emergence/disappearance of oscillatory behavior via a supercritical Andronov-Hopf bifurcation was observed for different mixed inflow hydrogen peroxide concentrations. An increase in the mixed inflow hydrogen-peroxide concentration resulted in a shift of the bifurcation point towards higher values of temperature, but did not alter the bifurcation type.
PB  - Springer
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Dynamic transitions in the Bray-Liebhafsky oscillating reaction. Effect of hydrogen peroxide and temperature on bifurcation
VL  - 118
IS  - 1
SP  - 15
EP  - 26
DO  - 10.1007/s11144-016-0984-y
ER  - 

@article{
author = "Pejić, Nataša and Kolar-Anić, Ljiljana and Maksimović, Jelena and Janković, Marija M. and Vukojević, Vladana and Anić, Slobodan",
year = "2016",
abstract = "The temporal dynamics of the Bray-Liebhafsky reaction (iodate-based catalytic decomposition of hydrogen peroxide in an acidic aqueous solution) was experimentally characterized in a continuous stirred tank reactor by independently varying the temperature and the mixed inflow hydrogen peroxide concentration. When the temperature was the bifurcation parameter, the emergence/disappearance of oscillatory behavior via a supercritical Andronov-Hopf bifurcation was observed for different mixed inflow hydrogen peroxide concentrations. An increase in the mixed inflow hydrogen-peroxide concentration resulted in a shift of the bifurcation point towards higher values of temperature, but did not alter the bifurcation type.",
publisher = "Springer",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Dynamic transitions in the Bray-Liebhafsky oscillating reaction. Effect of hydrogen peroxide and temperature on bifurcation",
volume = "118",
number = "1",
pages = "15-26",
doi = "10.1007/s11144-016-0984-y"
}

Pejić, N., Kolar-Anić, L., Maksimović, J., Janković, M. M., Vukojević, V.,& Anić, S.. (2016). Dynamic transitions in the Bray-Liebhafsky oscillating reaction. Effect of hydrogen peroxide and temperature on bifurcation. in Reaction Kinetics, Mechanisms and Catalysis
Springer., 118(1), 15-26.
https://doi.org/10.1007/s11144-016-0984-y

Pejić N, Kolar-Anić L, Maksimović J, Janković MM, Vukojević V, Anić S. Dynamic transitions in the Bray-Liebhafsky oscillating reaction. Effect of hydrogen peroxide and temperature on bifurcation. in Reaction Kinetics, Mechanisms and Catalysis. 2016;118(1):15-26.
doi:10.1007/s11144-016-0984-y .

Pejić, Nataša, Kolar-Anić, Ljiljana, Maksimović, Jelena, Janković, Marija M., Vukojević, Vladana, Anić, Slobodan, "Dynamic transitions in the Bray-Liebhafsky oscillating reaction. Effect of hydrogen peroxide and temperature on bifurcation" in Reaction Kinetics, Mechanisms and Catalysis, 118, no. 1 (2016):15-26,
https://doi.org/10.1007/s11144-016-0984-y . .