Author/Authors :
Ikuko N. Motoike، نويسنده , , Ikuko N. and Nakata، نويسنده , , Satoshi and Iguchi، نويسنده , , Yasutaka and Takemura، نويسنده , , Kaori K. and Hayashi، نويسنده , , Kumiko and Yoshikawa، نويسنده , , Kenichi، نويسنده ,
Abstract :
The generation and propagation of chemical waves in the Belousov–Zhabotinsky (BZ) reaction were investigated using a cation-exchange membrane embedded with a metal catalyst as a 2-dimensional oscillatory/active field. We found that a target pattern is generated from the top of a V-shape, indicating that the apex on the boundary between active and passive fields behaves as a pacemaker. A Plausible mechanism for this phenomenon is proposed based on a reaction–diffusion equation.
