Buscar
Mostrando ítems 31-40 de 40
Tesis Doctoral
Aplicación de Campos Eléctricos a Chorros Capilares
(2011)
Los resultados de este trabajo no se restringen a la mera caracterización de la estimulación EHD, sino que por un lado el formalismo es útil para la descripción de cualquier tipo de estimulación realizada mediante esfuerzos ...
Artículo
Influence of the nanoscale structural features on the properties and electronic structure of Al-doped ZnO thin films: An X-ray absorption study
(ScienceDirect, 2011-08)
Transparent Al-doped ZnO thin films were deposited by reactive magnetron sputtering with different oxygen flow rates. The electronic resistivity, measured by the 4 point-probe method, is very sensitive to the sample position ...
Artículo
Nitrate loss from a tile-drained reclaimed marsh soil from SW Spain amended with different products
(Springer, 2011)
Tile drainage and soil amendments have been found to affect losses of nitrate N from agricultural soils. This work was aimed at measuring nitrate N losses in a tile-drained marsh soil from SW Spain under traditional ...
Artículo
Nonlinear excitations, stability inversions, and dissipative dynamics in quasi-one-dimensional polariton condensates
(2011)
We study the existence, stability, and dynamics of the ground state and nonlinear excitations, in the form of dark solitons, for a quasi-one-dimensional polariton condensate in the presence of nonresonant pumping and ...
Artículo
Models for pollutant behavior in Spanish–Moroccan waters
(Elsevier, 2011)
The dispersion of pollutants in the Alboran Sea and the Gulf of Cadiz has been studied using numerical models. Two types of dispersion models have been developed: finite difference and particle-tracking ones. In both ...
Artículo
Low-frequency excitation of leaky modes in a microstripline with a top cover
(2011)
This paper studies the excitation of a physical leaky mode in a covered microstrip structure at low frequencies. We calculate the current excited in the line by a delta-gap voltage source via a full wave analysis based on ...
Artículo
Reaction-rate theory with account of the crystal anharmonicity
(American Physical Society, 2011)
Reaction rate theory in solids is modified taking into account intrinsic localized modes or discrete breathers (DBs) that can appear in crystals with sufficient anharmonicity resulting in violation of Arrhenius law. Large ...
Artículo
Annealing Effect on the Conductivity of XLPE Insulation in Power Cable
(IEEE, 2011)
Conductivity () in XLPE insulation of power cables annealed at 90 ºC at temperatures between 50 and 97 ºC has been measured. In all cases there is an initial increase in conductivity that develops a maximum and finally ...
Artículo
An XPS and ellipsometry study of Cr–O–Al mixed oxides grown by reactive magnetron sputtering
(ScienceDirect, 2011-12-15)
Cr–O–Al thin film mixed oxides grown on Si (100) substrates by reactive magnetron sputtering using different target compositions from 90% Cr (10% Al) to 10% Cr (90% Al) and oxygen fluxes in the range from 0 to 15 sccm have ...
Artículo
Microwave-based digestion method for extraction of 127I and 129I from solid material for measurements by AMS and ICP-MS
(Elsevier, 2011)
This work presents a microwave-based digestion method followed by a radiochemical extraction procedure to extract iodine from environmental matrices that provides iodine in a form suitable for the measurement of 129I by ...