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In the present paper the problem of chemostat modelling using the neural networks techniques is considered. A feedforward neural network with time delay feedback connections from and to the output neurons, which take into account the culture memory is proposed. A model of the growth of a strain Saccharomyces cerevisiae on a glucose limited medium is developed. Simulation investigations are carried out. The results are discussed.

This paper deals with an application of neural networks for chemostat modelling. A feedforward neural network, taking into account culture memory is proposed for the speci®c growth rate approximation within the framework of the classical unstructured model. The investigations are carried out for different network topologies on the example of the growth of a strain Saccharomyces cerevisiae on a glucose limited medium and a model suitable for control synthesis is proposed.

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