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In recent years , chaos control in academic research and practical application of more and more people's attention , and some control methods have been in the optical , chemical reactions , fluid, electronic circuits , artificial neural network, communication encryption , biological systems, a lot of experiments and applications has been verified. In this paper, the use of linear and delayed feedback control method for a class of three species ratio-dependent food chain model for chaos control, gives the system to produce the conditions for Hopf bifurcation , and the use of canonical form and the center manifold theory has been decided bifurcation branch orientation and stability of the expression formula.
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