The tunneling Hamiltonian formalism is applied to calculate the tunneling currents through a small superconducting tunnel junction. The formalism is extended to nonconstant tunneling matrix elements. The electrodes of the junction are assumed to consist of high critical temperature...

An existing mathematical model for microbial growth and inactivation in dynamically changing temperature conditions has been modified to explain the experimentally observed variability between replicate growth curves. The model incorporates a random variable parameter representing the random...

A chemically structured kinetic model for xanthan production is proposed. Both carbon and nitrogen source metabolisms into cells are taken into account by the model. A kinetic reaction network is proposed, using lumping of several compounds into groups for a simplification of the metabolic...

A method based on the use of neural networks is developed for the identification of systems encountered in the field of structural dynamics. The methodology is applied to the identification of linear and nonlinear dynamic systems such as the damped Duffing oscillator and the Van der Pol...

The paper summarizes the development of so-called synthetic chemostat model (SCM) simulating complex dynamic behavior of microorganisms. The basic SCM represents microbial growth as a conversion of exosubstrate into cell macromolecules via pool of intermediates. The “quality” of biomass is...

This paper presents and investigates a neural network structure which can perform general fuzzy inference. This system consists of a number of parallel neural network units which are called “flexible inference cells” (FICs). Each FIC implements a single-input/single-output (SISO) IF-THEN...

The nonlinear behavior of whistler waves coupled to either fast magnetosonic waves (FMS) or slow magnetosonic waves (SMS) is investigated in two spatial dimensions. For each branch our investigation is based on a numerical solution of a reduced set of equations consisting of two partial...

This paper considers the use of radial basis function and multi-layer perceptron networks for linear or linearizable, adaptive feedback control schemes in a discrete-time environment. A close look is taken at the model structure selected and the extent of the resulting parameterization. A...

A methodology is proposed to evaluate which components of the culture medium limit the growth of mammalian cells during the culture. It is based on a kinetic model that describes the hybridoma growth decreasing and death enhancing effects of glucose, amino-acids, serum and oxygen depletion, on...