The CuO6 octahedron in the T structure of the La - Sr - Cu - O superconductor is considered within the quasi-molecular approximation in order to calculate the electronic structure and the vibrational modes that could ...

Coedición con Instututo de Astronomía. Esta es una obra colectiva que reúne, por primera vez, material sobre el proceso de desarrollo que tuvo la astronomía a lo largo del periodo decimonónico en distintas entidades ...

We study the conjugate condensation-heat conduction process of a saturated vapor in contact with a vertical fin, including both longitudinal and transversal heat conduction effects. The momentum and energy balance equations ...

Using the classical version of the S-matrix scattering theory, we develop a stochastic process called persistent random walk. We show that the one-channel Landauer diffusion coefficient can be obtained from a purely ...

The non-linear stability of the Kolmogoroff flow is numerically studied using both spectral and lattice Boltzmann simulations with the aim of validating these latter techniques. Three different methods were applied: one ...

The effect of long-range Coulomb interactions on bulk properties is studied for the ionic solids NaBr and NaCl. The embedded cluster approach in the framework of density functional theory is employed. The Madelung potential ...