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We study the thermal mechanism of suppression of the anomalies in the nonlinear characteristics of inhomogeneous media. A generalized expression for the effective nonlinear conductivity is derived that allows for heat transfer from hot regions. We study the nature of the divergences in two- and three-dimensional inhomogeneous structures as depending on the local parameters and the microgeometry of the system. Finally, we show that in the critical region the effective nonlinear conductivity may be much higher than the conductivity of the components. [ABSTRACT FROM AUTHOR]

It is shown that the linear current flow regime in two-dimensional, two-component textures is unstable for some critical values of the ratio of the linear conductivities of the components. The critical current and critical field are studied as functions of the parameters of the system. The possibility of observing the predicted effect experimentally is discussed. © 1996 American Institute of Physics. [ABSTRACT FROM AUTHOR]

An investigation is made of the divergence of the higher moments of the field in conducting structures with conical singular regions. Calculations are made of the critical values of the parameters which determine the nonlinear anomalies of a medium. [ABSTRACT FROM AUTHOR]