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Mostrando ítems 31-40 de 62
Artículo
Stochastic resonance with weak monochromatic driving: Gains above unity induced by high-frequency signals
(European Physical Society, 2007)
We study the effects of a high-frequency (HF) signal on the response of a noisy bistable system to a low-frequency subthreshold sinusoidal signal. We show that, by conveniently choosing the ratio of the amplitude of the ...
Artículo
Stoichiometric Control of SiOx Thin Films Grown by Reactive Magnetron Sputtering at Oblique Angles
(Wiley, 2016)
The deposition of SiOx (x < 2) compound thin films by the reactive magnetron sputtering technique at oblique angles is studied from both theoretical and experimental points of view. A simple mathematical formula that links ...
Artículo
The transport, effective half-lives and age distributions of radioactive releases in the northern Indian Ocean
(Elsevier, 2021)
A Lagrangian model which describes radionuclide transport in the northern Indian Ocean is described. Water circulation is obtained from HYCOM ocean model for year 2017. The model includes advection by currents, turbulent ...
Artículo
Spatial modes in one-dimensional models for capillary jets
(American Physical Society, 2016)
One-dimensional (1D) models are widely employed to simplify the analysis of axisymmetric capillary jets. These models postulate that, for slender deformations of the free surface, the radial profile of the axial velocity can ...
Artículo
High-Rate Deposition of Stoichiometric Compounds by Reactive Magnetron Sputtering at Oblique Angles
(Wiley, 2016-10)
Target poisoning in reactive magnetron sputtering deposition of thin films is an undesired phenomenon, well known for causing a drastic fall of the process efficiency. We demonstrate that when this technique is operated ...
Artículo
Nonequivalence of phonon modes in the sine-Gordon equation
(2001)
We study the resonances in the sine-Gordon equation driven by an ac force using a linear perturbation theory. We show that resonances take place when the driving frequency d is equal to half of the phonon modes’ frequencies ...
Artículo
Hyperconductivity in fluorphlogopite at 300 K and 1.1 T
(European Physical Society, 2019-07-26)
We report on studies of hyperconductivity in which electric charge moves in a solid in the absence of an applied electric field. This is indicative of a non-Ohmic mechanism. Our results are consistent with charge being ...
Artículo
Plasma-Assisted Deposition of TiO2 3D Nanomembranes: Selective Wetting, Superomniphobicity, and Self-Cleaning
(Wiley-Blackwell, 2021)
Fabrication of tunable wetting surfaces is sought for the last years given its importance on energy, biomaterials and antimicrobials, water purification, microfluidics, and smart surfaces. Liquid management on surfaces ...
Artículo
Soliton ratchets in homogeneous nonlinear Klein-Gordon systems
(2006)
We study in detail the ratchetlike dynamics of topological solitons in homogeneous nonlinear Klein-Gordon systems driven by a biharmonic force. By using a collective coordinate approach with two degrees of freedom, namely ...
Artículo
A Lagrangian Tool for Simulating the Transport of Chemical Pollutants in the Arabian/Persian Gulf
(MDPI, 2021)
A rapid-response Lagrangian model for the use in simulation of the transport of a chemical pollutant in the Arabian/Persian Gulf is described. The model is well suited to the provision of a fast response after an emergency ...