Noise controlled pattern formation in subexcitable media  

作　　者：Zhenming Zhu Houwen Xin 

机构地区：[1]Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China

出　　处：《Chinese Science Bulletin》2001年第14期1161-1164,共4页

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 29892165).

摘　　要：The numerical simulation on a reaction-diffusion system indicates that different patterns can be obtained by tuning the strength of parameter noise in subexcitable media. With the increase of noise intensity, the waves sustained by noise are not broken up as usual, they evolve orderly, and the period of the waves decreases, the survival time of waves varies. The time interval of inputting noise also influences the process of pattern formation and the survival time of waves.The numerical simulation on a reaction-diffusion system indicates that different patterns can be obtained by tuning the strength of parameter noise in subexcitable media. With the increase of noise intensity, the waves sustained by noise are not broken up as usual, they evolve orderly, and the period of the waves decreases, the survival time of waves varies. The time interval of inputting noise also influences the process of pattern formation and the survival time of waves.

关 键 词：subexcitable MEDIA noise CHEMICAL wave. 

分 类 号：O175[理学—数学]