Polymerization Coupled To Oscillating Reactions:  (1) A Mechanistic Investigation of Acrylonitrile Polymerization in the Belousov−Zhabotinsky Reaction in a Batch Reactor

1999 ◽  
Vol 121 (32) ◽  
pp. 7373-7380 ◽  
Author(s):  
Randy P. Washington ◽  
William W. West ◽  
Gauri P. Misra ◽  
John A. Pojman
1999 ◽  
Vol 103 (33) ◽  
pp. 6564-6570 ◽  
Author(s):  
Mauro Rustici ◽  
Carlo Caravati ◽  
Enrico Petretto ◽  
Mario Branca ◽  
Nadia Marchettini

2006 ◽  
Vol 71 (6) ◽  
pp. 605-612 ◽  
Author(s):  
Ljiljana Kolar-Anic ◽  
Slavica Blagojevic ◽  
Natasa Pejic ◽  
Nebojsa Begovic ◽  
Stevan Blagojevic ◽  
...  

Some new experimental evidence of complex irregular oscillations in the Belousov-Zhabotinsky reaction realized in a batch reactor is presented. The results were obtained under relatively low cerium and malonic acid concentrations. One-dimensional maps were used for general discussion, and particularly, for the influence of noise on the evolution of the oscillations.


2004 ◽  
Vol 14 (10) ◽  
pp. 3679-3688 ◽  
Author(s):  
K. DAROWICKI ◽  
W. FELISIAK

The systematic study of application of Cohen's class time-frequency representations in the analysis of periodic BZ oscillations generated in batch reactor has been presented. Several distributions belonging to Cohen's class have been applied in the analysis of selected signal being the register of bromide selective electrode. Among them were Wigner–Ville, Choi–Williams and cone-shaped distributions. The application of mentioned methods allow instantaneous power spectra to be obtained and simultaneously give the possibility of observing evolution of frequency composition of investigated oscillations. The systematic filtering of signal, using so-called kernel functions, allows to eliminate undesirable cross terms and finally leads to the selection of a suitable method for chemical oscillations decomposition. The results presented in the form of three-dimensional pictures, illustrate the decrease in frequency of oscillations of exponential character. On the basis of the obtained results the cone-shaped distribution for kernel function parameter α=1 has been selected as the best method for Belousov–Zhabotinsky oscillations analysis in joint time-frequency domain.


2004 ◽  
Vol 59 (1) ◽  
pp. 139-148 ◽  
Author(s):  
Matthew L. Davies ◽  
Igor Schreiber ◽  
Stephen K. Scott

Sign in / Sign up

Export Citation Format

Share Document