脉冲示踪法 meaning in English
pulse chase method
Examples
- In this paper . flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is studied . according to characteristic analysis , the model of completely mixing reactor in series is introduced to characterize real reactor as a theoretical model . on the basis of analog computing analysis and discussion of theoretical model . by means of pulse tracer method , experiments on residence time distribution ( rtd ) have been done in different conditions including the change of tracer level , feeding flow rate and circulation flow rate . the result shows when the ratio of circulation flow rate and feeding flow rate amounts to at least 4 , the flow properties of multistage fluidized - bed bioreactor with external circulation at a pilot scale is very close to the model of completely mixing reactor in series . an amendatory model has been established by the regression method
作者首先在对反应器进行特征分析的基础上，建立了描述中试规模多级外循环流化床生物反应器流动特性的串级全混流模型，并对理论模型进行了模拟计算分析和讨论，在此基础上，作者分别在无循环和有循环(改变示踪剂用量、流加流量和循环流量)的条件下，利用脉冲示踪法对一到五级串联外循环流化床反应器进行了停留时间分布实验，结果表明，在循环流量与流加流量的比值达到大于等于4时，中试规模多级外循环流化床反应器的流动特性接近串级全混流模型，通过数据回归拟合的方法，建立了中试规模一到五级串联外循环流化床反应器的流动模型。