ANISOTROPY AND SPIRAL ORGANIZING CENTERS IN PATTERNED EXCITABLE MEDIA

被引：101

作者：

STEINBOCK, O ^{[1
]}

KETTUNEN, P ^{[1
]}

SHOWALTER, K ^{[1
]}

机构：

[1] W VIRGINIA UNIV, DEPT CHEM, MORGANTOWN, WV 26506 USA

来源：

SCIENCE | 1995年 / 269卷 / 5232期

关键词：

D O I：

10.1126/science.269.5232.1857

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Chemical wave behavior in a patterned Belousov-Zhabotinsky system prepared by printing the catalyst of the reaction on membranes with an ink jet printer is described. Cellular inhomogeneities give rise to global anisotropy in wave propagation, with specific local patterns resulting in hexagonal, diamond, and pentagonal geometries. Spiral wave sources appear spontaneously and serve as organizing centers of the surrounding wave activity. The experimental methodology offers flexibility for studies of excitable media with made-to-order spatial inhomogeneities.

引用

页码：1857 / 1860

页数：4

共 39 条

[1] ROTATING SPIRAL WAVES CREATED BY GEOMETRY [J].