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turing/turing-like patterns:Products of random aggregation of spatial components

Chinese Physics B 2023年第7期32卷 308-316页

作者：高见王欣刘心爽申传胜 International Joint Research Center of Simulation and Control for Population Ecology of Yangtze River in Anhui Anqing Normal UniversityAnqing 246011China School of Mathematics and Physics Anqing Normal UniversityAnqing 246011China

turing patterns are typical spatiotemporal ordered structures in various systems driven far from thermodynamic ***’s reaction-diffusion theory,containing a long-range inhibiting agent and a local catalytic agent,has provided an explanation for the formation of some patterns in ***,experimental and theoretical studies about turing/turing-like patterns have been generally focused on systems driven far from thermodynamic *** local dynamics of these systems are commonly very complex,which brings great difficulties to understanding of formation of ***,we investigate a type of turing-like patterns in a near-equilibrium thermodynamic system experimentally and theoretically,and put forward a new formation mechanism and a quantitative method for turing/turing-like ***,we observe a type of turing-like patterns in starch solutions,and study the effect of concentration on the structure of *** experimental results show that,with the increase of concentration,patterns change from spots to inverse spots,and labyrinthine stripe patterns appear in the region of intermediate *** analyze and model the formation mechanism of these patterns observed in experiments,and the simulation results agree with the experimental *** conclusion indicates that the random aggregation of spatial components leads to formation of these patterns,and the proportion of spatial components determines the *** findings shed light on the formation mechanism for turing/turing-like patterns.

关键词： turing-like pattern collective behavior random aggregation pattern formation multi-particle system

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