In a previous paper the propagation of linear longitudinal acoustic waves in isotropic media with shear and volume viscosity and a tensorial internal variable was considered and the expressions for the velocity and attenuation of the waves were obtained. In the present paper we investigate the...

The propagation of linear transverse acoustic waves in isotropic media in which mechanical relaxation phenomena occur was considered in a previous paper. In particular expressions for the velocity and attenuation of the waves were obtained and the limiting cases of waves with high and low...

In this paper we investigate the relation (dynamical equation of state) among the (mechanical hydrostatic) pressure P, the volume ν and the temperature T of an isotropic medium with an arbitrary number, say n, of scalar internal degrees of freedom. It is assumed that the irreversible processes...

A general method devised to construct oscillatory approximate solutions is applied to a system of equations which describes the behaviour of isotropic media in which mechanical relaxation phenomena occur. The propagation into a uniform unperturbed state is explicitly worked out and the growth...

In some previous papers a theory for dielectric relaxation phenomena in polarizable media was developed by introducing a set of thermodynamic internal variables identified with the n + 1 partial specific polarization vectors p(k) (k = 0, 1, 2, …, n) in which the total specific polarization...

It has been shown by the author in a previous paper that thermodynamic vectorial internal degrees of freedom which influence the polarization or the magnetization of a medium may give rise to dielectric or magnetic relaxation phenomena. Snoek's equation for magnetic relaxation phenomena was...

In a previous paper we have investigated the relation (dynamical equation of state) among the hydrostatic pressure P, the volume v and the temperature T of an isotropic medium with an arbitrary number, say n, of scalar internal degress of freedom. It has been shown that linearization of the...

In a previous paper it has been shown by the author that a vectorial internal variable may give rise to dielectric relaxation phenomena and that if such a variable occurs the polarization P may be written in the form P = P(0) + P(1), where changes in P(0) are reversible processes and changes in...

In some previous papers one of us developed a theory of dielectric and magnetic relaxation phenomena based on non-equilibrium thermodynamics. In one of these papers possible cross effects between dielectric (or magnetic) relaxation and heat conduction were discussed. It was shown in particular...

In some previous papers one of us (G.A.K.) discussed dielectric relaxation phenomena with the aid of non-equilibrium thermodynamics. In particular the Debye equation for dielectric relaxation in polar liquids was derived. It was also noted that generalizations of the Debye equation may be...