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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Anomalous Dispersion of Chemical Waves in a Homogeneously Catalyzed Reaction System
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Anomalous Dispersion of Chemical Waves in a Homogeneously Catalyzed Reaction System

机译：均相催化反应体系中化学波的异常色散

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摘要

We present experimental results that demonstrate anomalous dispersion in a Belousov-Zhabotinsky system. The reaction is carried out at high concentrations of sulfuric acid and involves 1,4-cyclohexanedione as its organic substrate. The unusual dispersion behavior of this excitable medium induces an attractive interaction between pulses that results in fusion or closed stacking of waves. Experimental results from quasi-one-dimensional as well as two-dimensional media are presented. In two-dimensional reaction systems, a complex dependence of the propagation velocity on the relative direction between fronts is found and the formation of spiral defects is observed.
机译：我们目前的实验结果表明Belousov-Zhabotinsky系统中的异常分散。该反应在高浓度的硫酸下进行，并且涉及1，4-环己二酮作为其有机底物。这种可激发介质的异常分散行为会引起脉冲之间的吸引相互作用，从而导致波的融合或紧密堆积。给出了来自准一维以及二维介质的实验结果。在二维反应系统中，发现传播速度对前沿之间相对方向的复杂依赖性，并观察到螺旋缺陷的形成。

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