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Artículo
Reorientation and coupling effects in polarized heavy ion fusion
(Elsevier, 1992)
A simple model to understand the reaction mechanisms in the fusion of polarized heavy ions based on tidal symmetry, the sudden approximation and barrier penetration is presented. The model is applied to 23Na+208Pb. The ...
Artículo
Low-frequency excitations in a molecular glass: Single-particle dynamics
(American Institute of Physics Publising LLC, 1992)
The low-frequency dynamics of a molecular glass former has been investigated by means of inelastic neutron scattering from a mostly incoherent sample as well as by computer molecular-dynamics simulation. The mode assignments ...
Artículo
Nonequilibrium entropy of a gas
(American Physical Society, 1992)
The Boltzmann entropy of a dilute gas under uniform shear flow is analyzed. The entropy variation associated with viscous heating is evaluated and compared with the local equilibrium expression. For interaction potentials ...
Artículo
Localización neuroeléctrica de procesos cognitivos
(Universitat de Barcelona/Elsevier, 1992)
Recording techniques of electrical cerebral activity with surface electrodes are shown and supported as a valid choice of a physiological study of the cognitive function of the human brain. Likewise, we describe the ...
Artículo
Collective excitations in liquid methanol: A comparison of molecular, lattice-dynamics, and neutron-scattering results
(American Institute of Physics, 1992)
The collective dynamics of liquid methanol‐d4 is studied by means of molecular‐dynamics simulation. The model potential is validated by means of lattice energy calculations and shows a very good agreement with the ...
Artículo
Dynamics of single and multiple Zener transitions
(American Institute of Physics Publising LLC, 1992)
The probability of remaning in a given state is evaluated for a two-level system that can cross repeatedly and periodically as a function of a control parameter. The possibility of multiple Zener transitions between the ...