中国物理B ›› 2023, Vol. 32 ›› Issue (5): 50502-050502.doi: 10.1088/1674-1056/ac9367
Rong Liu(刘蓉)1,2 and Wanbiao Ma(马万彪)1,†
Rong Liu(刘蓉)1,2 and Wanbiao Ma(马万彪)1,†
摘要: The use of flocculants to collect/extract microorganisms is of great practical significance for the development of the application of microorganisms. In this paper, a high-dimensional nonlinear stochastic differential equation model is constructed to describe the continuous culture of microorganisms with multiple nutrients and the flocculation process of microorganisms. The study of the dynamics of this model can provide feasible control strategies for the collection/extraction of microorganisms. The main theoretical results are sufficient conditions for the permanence and extinction of the stochastic differential equation model, which are also extensions of some results in the existing literatures. In addition, through numerical simulations, we vividly demonstrate the statistical characteristics of the stochastic differential equation model.
中图分类号: (Fluctuation phenomena, random processes, noise, and Brownian motion)