Spiral formation and degeneration in heterogeneous excitable media

Toth , R. , de Lacy Costello, B. , Stone, C. , Masere, J. , Adamatzky, A. and Bull, L. (2009) Spiral formation and degeneration in heterogeneous excitable media. Physical Review E, 79 (3). 035101(R) (4 pages). ISSN 1539-3755

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Publisher's URL: http://link.aps.org/doi/10.1103/PhysRevE.79.035101

Abstract

Spontaneous spiral formation occurs when an excitation wave is input to a heterogeneous network of low- and high-light-intensity cells projected onto a light-sensitive Belousov-Zhabotinsky reaction. The range of network conditions where spirals form is increased if two waves are input at critical time intervals. Spirals degenerate to form multiple spirals and spirals trapped within excitable cells. Spiral formation and degeneration is dependent on network excitability, cell size, and network size. Results exhibit parallels with spiral formation in excitable biological systems such as the heart.

Item Type:Article
Uncontrolled Keywords:pattern formation in reactions with diffusion, flow and heat transfer, self-organized systems, pattern selection, pattern formation
Faculty/Department:Faculty of Environment and Technology > Department of Computer Science and Creative Technologies
Faculty of Health and Life Sciences > Department of Applied Sciences
~Pre-2010 Faculty Structure > Health and Life Sciences > School of Life Sciences > Centre for Research in Analytical, Materials and Sensors Science
~Pre-2012 Faculty Structure > Faculty of Environment and Technology > Department of Computer Science and Creative Technologies
~Pre-2012 Faculty Structure > Faculty of Environment and Technology > Artificial Intelligence Group
~Pre-2012 Faculty Structure > Faculty of Health and Life Sciences > Department of Applied Sciences
ID Code:11403
Deposited By: B. de Lacy Costello
Deposited On:09 Nov 2010 09:30
Last Modified:05 Feb 2013 16:40

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