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Mostrando ítems 21-30 de 32
Artículo
Radiometric dating of recent sediments: beyond the boundary conditions
(Springer, 2012)
Most mathematical models for radiometric dating of recent sediments are particular solutions of a unique physical problem: the advective–diffusive transport of a particle-bound radiotracer within a sediment profile that ...
Artículo
Beating dark-dark solitons in Bose-Einstein condensates
(2012)
Motivated by recent experimental results, we study beating dark-dark solitons as a prototypical coherent structure that emerges in two-component Bose-Einstein condensates. We showcase their connection to dark- bright ...
Artículo
Structural and mechanical properties of Au alloyed Al\O sputter deposited coatings
(ScienceDirect, 2012-02-15)
This paper is focused on the sputtering process and on the structure, chemical composition and mechanical properties of coatings consisting of Al\O dielectric matrix incorporated with increasing Au contents. The maximum ...
Artículo
Coordination chemistry of titanium and zinc in Ti(1−x)Zn2xO2 (0 ≤ x ≤ 1) ultrathin films grown by DC reactive magnetron sputtering
(Royal Society of Chemistry, 2012)
XANES and RBS were used to explore the structural phase and composition transitions of ultrathin films with Ti(12x)Zn2xO2 stoichiometries, from very low (y0.5 at.%) to high (y25 at.%) titanium content. In this way, the ...
Artículo
Recent sedimentation rates in Garaet El Ichkeul Lake, NW Tunisia, as affected by the construction of dams and a regulatory sluice
(Springer, 2012)
Purpose Ichkeul National Park, NW Tunisia, is a UNESCO Biosphere Reserve. Garaet El Ichkeul Lake is known for its seasonal variability in water level and salinity. In recent decades, the waterbody has been affected by the ...
Ponencia
Artículo
Generation of localized modes in an electrical lattice using subharmonic driving
(2012)
We show experimentally and numerically that an intrinsic localized mode (ILM) can be stably produced (and experimentally observed) via subharmonic, spatially homogenous driving in the context of a nonlinear electrical ...
Artículo
Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program
(American Society of Limnology and Oceanography, 2012)
As part of the GEOTRACES Program, six laboratories participated in an intercalibration exercise on several anthropogenic radionuclides of interest. The effort was successful for 239,240Pu activity, 240Pu/239Pu isotope ...
Artículo
Forced nonlinear Schrödinger equation with arbitrary nonlinearity
(2012)
We consider the nonlinear Schrödinger equation (NLSE) in 1+1 dimension with scalar-scalar self-interaction g2κ+1(ψ☆ψ)κ+1 in the presence of the external forcing terms of the form re−i(kx+θ)−δψ. We find new exact solutions ...
Ponencia
Breathers and surface modes in oscillator chains with Hertz ian interactions
(NOLTA, 2012)
We study localized waves in chains of oscillators coupled by Hertzian interactions and trapped in local potentials. This problem is originally motivated by Newton's cradle, a mechanical system consisting of a chain of ...