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In this paper we investigate the dynamics of an asymmetric exclusion process on a one-dimensional lattice with longrange hopping and random update via Monte Carlo simulations theoretically. Particles in the model will firstly try to hop over successive unoccupied sites with a probability q, which is different from previous exclusion process models. The probability q may represent the random access of particles. Numerical simulations for stationary particle currents, density profiles, and phase diagrams are obtained. There are three possible stationary phases: the low density(LD) phase, high density(HD) phase, and maximal current(MC) in the system, respectively. Interestingly, bulk density in the LD phase tends to zero, while the MC phase is governed by α, β, and q. The HD phase is nearly the same as the normal TASEP,determined by exit rate β. Theoretical analysis is in good agreement with simulation results. The proposed model may provide a better understanding of random interaction dynamics in complex systems.  相似文献   
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紫外光谱法检测水中咪唑类离子液体的含量   总被引:2,自引:0,他引:2  
介绍了用紫外光谱测定水中离子液体含量的方法.测定了7种离子液体([C4 mim][c1]、[C4 mim][BF4]、[C4 mim][PF6]、[c5 mim][Cl]、[C6 mim][BF4]、[C8 mim][Cl]和[C8mIm][BF4])的最大吸收波长,并且绘制了校准曲线.结果表明,在实验试剂用量范围内.离子液体在波长211nm附近的吸光度与浓度呈线性关系,其线性相关系数均大于0.999.说明用紫外光谱法检测水中离子液体含量简单、快速且测定结果准确可靠.  相似文献   
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