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Mostrando ítems 1-10 de 126
Artículo
Analytic evaluation of Franck-Condon integrals for anharmonic vibrational wave functions
(American Physical Society, 1999)
The problem of calculating Franck-Condon overlap integrals in molecular transitions between vibrational states in different electronic configurations is addressed. An exact and easily applicable analytical expression is ...
Artículo
Homogeneous cooling state of a low-density granular flow
(American Physical Society, 1996)
The homogeneous cooling state of a granular flow of smooth spherical particles described by the Boltzmann equation is investigated by means of the direct simulation Monte Carlo method. The velocity moments and also the ...
Tesis Doctoral
Caracterización y modificación de materiales de interés tecnológico e industrial mediante técnicas nucleares
(1999-06-04)
Las técnicas nucleares que utilizan haces de partículas para análisis, caracterización o modificación de materiales (técnicas deIon Beam Analysis ó IBA) vienen siendo empleadas con notable éxito en los últimos 15 años en ...
Artículo
Origin of density clustering in a freely evolving granular gas
(American Physical Society, 1999)
The physical mechanisms leading to the development of density inhomogeneities in a freely evolving low density granular gas are investigated. By means of the direct simulation Monte Carlo method, numerical solutions of the ...
Artículo
Excitation of multiple giant dipole resonances: From spherical to deformed nuclei
(Elsevier, 1999)
The effect of deformation on the excitation of multiple giant dipole resonances is studied. Analytical expressions are derived in the framework of the interacting boson model for the energies and E1 properties of giant ...
Artículo
The ratio of p and n yields in NC v(v̄) nucleus scattering and strange form factors of the nucleon
(Elsevier, 1998)
We calculate the ratio of proton and neutron yields in NC induced v(v̄)-nuc\eus inelastic scattering at neutrino energies of about 1 GeV. We show that this ratio depends very weakly on the nuclear models employed and that ...
Tesis Doctoral
Artículo
Glasslike relaxation in a one-dimensional bonded-fluid model
(American Institute of Physics Publising LLC, 1991)
A Monte Carlo investigation of the linear and nonlinear relaxation of a one-dimensional bonded fluid is presented. The simulation shows that the model possesses many of the qualitative properties of the glass-forming ...
Tesis Doctoral
Radionúclidos artificiales en la industria forestal
(1999)
En el Capítulo 2 se hace una revisión de los trabajos previos relacionados con nuestra investigación. Pretendemos justificar el interés del problema que abordamos : En el Capítulo 3 se revisan los métodos radioquímicos ...
Artículo
Self-diffusion in freely evolving granular gases
(American Institute of Physics, 1994)
A self-diffusionequation for a freely evolving gas of inelastic hard disks or spheres is derived starting from the Boltzmann–Lorentz equation, by means of a Chapman–Enskog expansion in the density gradient of the tagged ...