Gerard Hyland

On the basis of uniform theoretical concept («chemical model of plasma») the model of non-congruent phase equilibrium (evaporation) in high- temperature products of uranium dioxide heating has been worked out, taking into account multicomponent, partly ionized, strongly interacting mixture of atoms, molecules and nuclear and molecular ions. On the basis of theoretical model the efficient numerical algorithm, realized within the

The thermal diffusivity and heat capacity of uranium dioxide have been measured from 500 to 2900 K with an advanced laser-flash technique. These two quantities were determined simultaneously by means of an accurate numerical fitting of the experimental thermograms. At high temperatures the precision of the method used is much better than that associated with conventional laser-flash measurements. It was

(microwave) radiation of the correct frequency, provided its wavelength is large compared with the spatial dimen-sions of the coherently oscillating system. Establishment of this coherent excitation requires a supply of energy to the system, which can be either internal (from metabolism) ...

An international project supported by INTAS (International Association for Promotion of Cooperation with Scientists from the New Independent States of the former Soviet Union) was started in 1994 with the intent of constructing an equation of state (EOS) for liquid and gaseous UO2, which fully reproduces the comprehensive thermodynamic database for this compound. The new equation of state was devised for applications encompassing hypo- and hyper-stoichiometric compositions. A so-called “chemical model” was used for the theoretical description of liquid urania. This model is based on the thermodynamic perturbation theory (TPT) modified in order to account for the specific properties of the system investigated. It describes, in a unified formalism, a multicomponent mixture of chemically reactive, strongly interacting neutral and charged molecules and atoms. Comparisons of the predicted equilibrium vapor pressures with literature data provided an initial validation of the model up to t...

(microwave) radiation of the correct frequency, provided its wavelength is large compared with the spatial dimen-sions of the coherently oscillating system. Establishment of this coherent excitation requires a supply of energy to the system, which can be either internal (from metabolism) ...

The thermal diffusivity and heat capacity of uranium dioxide have been measured from 500 to 2900 K with an advanced laser-flash technique. These two quantities were determined simultaneously by means of an accurate numerical fitting of the experimental thermograms. At high temperatures the precision of the method used is much better than that associated with conventional laser-flash measurements. It was

Although safety guidelines—to which mobile telephones and their base-stations conform—do protect against excessive microwave heating, there is evidence that the low intensity, pulsed radiation currently used can exert subtle non-thermal influences. If these ...