Spiral waves, 255, Plate

The light-sensitive BZ reaction demonstrates all basic features of excitable media of quite different nature and represents a very suitable experimental system to study controlled motion of spiral waves. In the experiments reported below an open gel reactor is used [29-31]. The catalyst is immobilized in a silicahydrogel layer of 0.5 mm thickness prepared on a plate... 

Xu et al. [63] also address directionahty in a composite plate, which is more difficult to achieve because the inherent anisotropy of the medium. Figure 16.29(c) shows such directional pattern obtained through guided wave simulation in a unidirectional GFRP plate. A further extension of this concept to achieve continuous steering through a double spiral shape is presented in BaraveUi et al. [64]. 

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