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Mostrando ítems 11-15 de 15
Artículo
Steady state of a fluidized granular medium between two walls at the same temperature
(American Physical Society, 1998)
The steady state of a low-density gas of inelastic hard spheres confined between two parallel walls at the same temperature is studied. Because of the dissipation in collisions, the state is not uniform but highly inhomogeneous ...
Artículo
On the validity of linear hydrodynamics for low-density granular flows described by the Boltzmann equation
(European Physical Society, 1999)
The direct Monte Carlo simulation method is used to check the validity of the hydrodynamic description of a low-density granular flow in the linear region about the homogeneous cooling state. Good agreement is found between ...
Artículo
High energy tail in the velocity distribution of a granular gas
(American Physical Society, 1999)
The Enskog-Boltzmann equation for a homogeneous freely evolving system of smooth hard disks colliding inelastically is solved by means of the direct simulation Monte Carlo method. The distribution function shows an exponential ...
Artículo
U and Th distribution in solution and suspended matter from rivers affected by the phosphate rock processing in southwestern Spain
(Elsevier, 1994)
A study is presented on the distribution of U and Th isotopes in the solid and liquid fractions of waters collected along the Odiel and Tinto rivers (southwest Spain). Such rivers are affected by the operation of phosphate ...
Artículo
Identification and effects of anthropogenic emissions of U and Th on the composition of sediments in a river/estuarine system in Southern Spain
(Elsevier, 1994)
A study of the distribution of natural radionuclides in different fractions of river bottom sediments has been carried out. The study has shown that the majority of the total U in the sediment is located in the non-residual ...