SUPPRESSING SPIRAL WAVES IN EXCITABLE MEDIA VIA UNIDIRECTIONAL COUPLING

2008 ◽  
Vol 22 (24) ◽  
pp. 4153-4161 ◽  
Author(s):  
YU QIAN ◽  
YU XUE ◽  
GUANG-ZHI CHEN
Keyword(s):  
Co Oxidation ◽  
Power Law ◽  
Coupling Strength ◽  
Control Method ◽  
Spiral Waves ◽  
Coupling Method ◽  
Excitable Media ◽  
Catalytic Co Oxidation ◽  
Unidirectional Coupling ◽  
High Control

A unidirectional coupling method to successfully suppress spiral waves in excitable media is proposed. It is shown that this control method has high control efficiency and is robust. It adapts to control of spiral waves for catalytic CO oxidation on platinum as well as for the FHN model. The power law n ~ c-k of control time steps n versus the coupling strength c for different models has been obtained.

STOCHASTIC DRIVING AND COUPLING CONTROL METHOD TO SUPPRESS SPIRAL WAVES AND SPATIOTEMPORAL CHAOS AND ANALYSIS OF CORRELATION

2009 ◽  
Vol 19 (03) ◽  
pp. 1081-1086 ◽  
Author(s):  
TIAN HUANHUAN ◽  
XUE YU ◽  
LIANG YUJUAN ◽  
KANG SANJUN
Keyword(s):  
Power Law ◽  
Control Method ◽  
Spatiotemporal Chaos ◽  
Spiral Waves ◽  
Drive System ◽  
Minimum Time ◽  
Coupling Method ◽  
Complete Synchronization

In this paper, the stochastic driving and coupling method to effectively suppress the turbulence and spiral waves is proposed. It is confirmed that the drive system ensures the response achieves complete synchronization via the computation of the Pearson's coefficient γ. The minimum time units of achieving complete synchronization N versus the coupling proportion P takes on the power-law N ~ P-k.

EXPLORING THE CONTROL OF SPIRAL WAVES AND SPATIOTEMPORAL CHAOS BY STOCHASTIC AND CROSS-COUPLING METHOD

2013 ◽  
Vol 27 (23) ◽  
pp. 1350129 ◽  
Author(s):  
RUI ZHAO ◽  
WEI PAN ◽  
YU XUE
Keyword(s):  
Control Method ◽  
Coupling Model ◽  
Spatiotemporal Chaos ◽  
Spiral Waves ◽  
Excitable Media ◽  
Amplitude Analysis ◽  
Frequency Locking ◽  
Poisson Coefficient ◽  
Response System ◽  
The One

In this paper, we propose the stochastic and unidirectional cross-coupled control method between two-layer excitable media to suppress the spiral waves and spatiotemporal chaos. Four types of the drive-response system in such two-layer excitable media are studied. By performing many simulations, results illustrate the spiral waves and spatiotemporal chaos can be controlled to the desired target states like the target waves and traveling waves. Patterns obtained are obviously different from those of the one-to-one coupling model. Based on the method proposed by Henry, we have carefully studied the generalized synchronization between the drive and response system with the stochastic and cross-connecting points via amplitude analysis and computing Poisson coefficient. Moreover, there also exists the frequency locking phenomenon.

Reaction diffusion patterns in the catalytic CO‐oxidation on Pt(110): Front propagation and spiral waves

1993 ◽  
Vol 98 (12) ◽  
pp. 9977-9985 ◽  
Author(s):  
S. Nettesheim ◽  
A. von Oertzen ◽  
H. H. Rotermund ◽  
G. Ertl
Keyword(s):  
Co Oxidation ◽  
Reaction Diffusion ◽  
Front Propagation ◽  
Spiral Waves ◽  
Catalytic Co Oxidation

Catalytic CO Oxidation on Unreconstructed Cu(110) by Reactive As-Adsorbed Oxygen Atoms below 230 K

1996 ◽  
Vol 100 (3) ◽  
pp. 1048-1054 ◽  
Author(s):  
Tsuyoshi Sueyoshi ◽  
Takehiko Sasaki ◽  
Yasuhiro Iwasawa
Keyword(s):  
Co Oxidation ◽  
Adsorbed Oxygen ◽  
Catalytic Co Oxidation ◽  
Oxygen Atoms

Spiral waves in excitable media due to noise and periodic forcing

2011 ◽  
Vol 44 (9) ◽  
pp. 728-738 ◽  
Author(s):  
Guoyong Yuan ◽  
Lin Xu ◽  
Aiguo Xu ◽  
Guangrui Wang ◽  
Shiping Yang
Keyword(s):  
Spiral Waves ◽  
Excitable Media ◽  
Periodic Forcing

scholarly journals The critical role of water at the gold-titania interface in catalytic CO oxidation

Science ◽  
2014 ◽  
Vol 345 (6204) ◽  
pp. 1599-1602 ◽  
Author(s):  
J. Saavedra ◽  
H. A. Doan ◽  
C. J. Pursell ◽  
L. C. Grabow ◽  
B. D. Chandler
Keyword(s):  
Co Oxidation ◽  
Critical Role ◽  
Catalytic Co Oxidation

Electrochemical promotion of catalytic CO oxidation on Pt/YSZ catalysts under low pressure conditions

1999 ◽  
Vol 1 (22) ◽  
pp. 5241-5249 ◽  
Author(s):  
Jens Poppe ◽  
Stefan Völkening ◽  
Andreas Schaak ◽  
Eckart Schütz ◽  
Jürgen Janek ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Electrochemical Promotion ◽  
Low Pressure ◽  
Catalytic Co Oxidation
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