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| Description
| - The hydrogen peroxide-thiosulfate-Cu2+ reaction operated in a continuous flow stirred tank reactor is a pH-oscillator known to provide three different steady states, hysteresis, and oscillations. In addition to the various dynamical regimes established earlier, a question arises whether the reaction can be also excitable, whereby the system strongly responds to a small but supercritical external addition of certain chemical species. We carried out experiments aimed at finding excitability and studying response dynamics to single and repeated pulsed perturbations of varying amplitude and period. We found that the reaction displays a remarkable excitatory dynamics when forced. The available mechanism of the reaction involves several adjustable parameters, which need to be tuned so that the model corresponds to experimentally observed bifurcation diagrams. Our experimental findings are compared with numerical calculations, suggesting that the model is far from complete.
- The hydrogen peroxide-thiosulfate-Cu2+ reaction operated in a continuous flow stirred tank reactor is a pH-oscillator known to provide three different steady states, hysteresis, and oscillations. In addition to the various dynamical regimes established earlier, a question arises whether the reaction can be also excitable, whereby the system strongly responds to a small but supercritical external addition of certain chemical species. We carried out experiments aimed at finding excitability and studying response dynamics to single and repeated pulsed perturbations of varying amplitude and period. We found that the reaction displays a remarkable excitatory dynamics when forced. The available mechanism of the reaction involves several adjustable parameters, which need to be tuned so that the model corresponds to experimentally observed bifurcation diagrams. Our experimental findings are compared with numerical calculations, suggesting that the model is far from complete. (en)
- Reakce peroxid vodíku-thiosíran-Cu2+ provozovaná v průtočném míchaném reaktoru je pH-oscilátor, jehož dynamika vykazuje násobné stacionární stavy, hysterezi a oscilace. Navíc vykazuje excitabilitu, která byla předmětem studia v této práci. Byly nalezeny různorodé režimy dynamiky při periodické perturbaci systém v excitabilním režimu. Dostupný mechanismus obsahuje nastavitelné parametry, které bylo třeba vyladit tak, aby model co nejlépe odpovídal experimentům. Byla zjištěna značná neshoda indikující, že uvedený model je velmi neúplný. (cs)
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| Title
| - Response dynamics to pulsed perturbations of the hydrogen peroxide-thiosulfate-Cu2+ reaction
- Response dynamics to pulsed perturbations of the hydrogen peroxide-thiosulfate-Cu2+ reaction (en)
- Odezvová dynamika na pulsní perturbace v reakci peroxid vodíku-thiosíran-Cu2+ (cs)
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| skos:prefLabel
| - Response dynamics to pulsed perturbations of the hydrogen peroxide-thiosulfate-Cu2+ reaction
- Response dynamics to pulsed perturbations of the hydrogen peroxide-thiosulfate-Cu2+ reaction (en)
- Odezvová dynamika na pulsní perturbace v reakci peroxid vodíku-thiosíran-Cu2+ (cs)
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| skos:notation
| - RIV/60461373:22340/08:00020785!RIV09-MSM-22340___
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(GA203/06/1269), Z(MSM6046137306)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22340/08:00020785
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - pH-oscillatory reaction; excitable dynamics; pulsed perturbations; frequency locking; chaos (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Journal of Physical Chemistry A
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Schreiber, Igor
- Schreiberová, Lenka
- Pešek, Oldřich
- Kofránková, Vlasta
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| http://linked.open...ain/vavai/riv/wos
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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