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发布时间：2019-03-12
论文类型：期刊论文
发表时间：2017-12-01
发表刊物：COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
收录刊物：Scopus、EI、SCIE
卷号：53
页面范围：228-248
ISSN号：1007-5704
关键字：Continuous fermentation; Nonlinear stochastic system; Global behavior; Control sets; Ergodicity; Stationarity; Parallel computation
摘要：Global behavior for stochastic system of continuous fermentation in glycerol bio-dissimilation to 1,3-propanediol by Klebsiella pneumoniae is analyzed in this paper. This bioprocess cannot avoid the stochastic perturbation caused by internal and external disturbance which reflect on the growth rate. These negative factors can limit and degrade the achievable performance of controlled systems. Based on multiplicity phenomena, the equilibriums and bifurcations of the deterministic system are analyzed. Then, a stochastic model is presented by a bounded Markov diffusion process. In order to analyze the global behavior, we compute the control sets for the associated control system. The probability distributions of relative supports are also computed. The simulation results indicate that how the disturbed biosystem tend to stationary behavior globally. (C) 2017 Elsevier B.V. All rights reserved.