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Mostrando ítems 61-70 de 92
Artículo
Multibreathers in Klein-Gordon chains with interactions beyond nearest neighbors
(2013)
We study the existence and stability of multibreathers in Klein-Gordon chains with interactions that are not restricted to nearest neighbors. We provide a general framework where such long range effects can be taken into ...
Artículo
Nonlinear localized modes in two-dimensional electrical lattices
(2013)
We report the observation of spontaneous localization of energy in two spatial dimensions in the context of nonlinear electrical lattices. Both stationary and moving self-localized modes were generated experimentally and ...
Artículo
PT-symmetric dimer of coupled nonlinear oscillators
(2013)
We provide a systematic analysis of a prototypical nonlinear oscillator system respecting PT symmetry i.e., one of them has gain and the other an equal and opposite amount of loss. Starting from the linear limit of the ...
Artículo
Towards nanometric resolution in multilayer depth profiling: a comparative study of RBS, SIMS, XPS and GDOES
(SpringerLink, 2010-01-09)
An increasing amount of effort is currently being directed towards the development of new functionalized nanostructured materials (i.e., multilayers and nanocomposites). Using an appropriate combination of composition and ...
Artículo
High-temperature solar-selective coatings based on Cr(Al)N. Part 2: Design, spectral properties and thermal stability of multilayer stacks
(ScienceDirect, 2020-12)
Two multilayer solar selective absorber coatings [Al/CrN0.95/Cr0.96Al0.04N1.08/Cr0.53Al0.47N1.12/Al2O3 (stack #1) and Cr0.96Al0.04N0.89/Cr0.62Al0.38N1.00/Cr0.53Al0.47N1.12/Al2O3 (stack #2)] were deposited on 316L steel by ...
Artículo
Improving the oxidation resistance of AlCrN coatings by tailoring chromium out-diffusion
(ScienceDirect, 2010-11)
In this work, we have studied the improvement on the oxidation resistance of AlCrN-based coatings by adding a subsurface titanium nitride barrier layer. Since oxidation is interrelated with the inward diffusion of oxygen ...
Artículo
Solitons in quasi-one-dimensional Bose-Einstein condensates with competing dipolar and local interactions
(2009)
We study families of one-dimensional matter-wave bright solitons supported by the competition of contact and dipole-dipole (DD) interactions of opposite signs. Soliton families are found, and their stability is investigated ...
Artículo
Regular and chaotic transport of discrete solitons in asymmetric potentials
(2010)
Ratchet dynamics of topological solitons of the forced and damped discrete double sine-Gordon system are studied. Directed transport occurring both in regular and in chaotic regions of the phase space and its dependence ...
Artículo
Correlation between structure and optical properties in low emissivity coatings for solar thermal collectors
(ScienceDirect, 2010-08-02)
We have investigated the relation between the structure and morphology of TiN coatings with their optical properties. Samples were deposited by magnetron sputtering and, by changing the deposition parameters, different ...
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 ...