【摘要】 研究了一定温度条件下和NO气体偏压pNO处在超临界Hopf分岔点附近时,Pt(100)/NO+CO表面催化还原反应体系被色噪声调制后的动力学行为.通过计算机模拟,观察到了色噪声诱导的反应振荡和随机共振现象.探讨了色噪声强度和相关时间对随机共振行为的影响,得到一些新的结果.更多还原

【Abstract】 Under the conditions of constant temperature and the value of NO partial pressure p_NO which is tuned close to Hopf bifurcation point,the dynamics of Pt（100）/NO+CO system modulated by colored noise is studied.The colored noise-induced oscillations and the stochastic resonance are observed by using numerical simulations.The influences of intensity and correlation time of colored noise on the stochastic resonance are discussed.A novel result is found that the noise intensity for the occurrence of stochastic resonance initially increases and then decreases with increasing the fixed correlation time.更多还原