Results 11 to 20 of about 1,472,674 (296)
A discrete linearizability test based on multiscale analysis [PDF]
, 2010 In this paper we consider the classification of dispersive linearizable partial difference equations defined on a quad-graph by the multiple scale reduction around their harmonic solution.
Agrotis M +22 more
core +2 more sources
Revista Peruana de Biología, 2013 Se realizó un estudio de los patrones de distribución espacial de cuatro especies de árboles características de los bosques secos del Parque Nacional Cerros de Amotape en el noroeste peruano, inventariando seis parcelas de una hectárea cada una.
Reynaldo Linares-Palomino
doaj +1 more source
Huitzil, 2015 Registramos a las palomas turca (Streptopelia decaocto) y africana de collar (Streptopelia roseogrisea) en Guerrero. La primera en cinco municipios del estado, en áreas suburbanas con vegetación secundaria e introducida, donde se ha establecido y se ...
Epifanio Blancas-Calva +2 more
doaj +1 more source
Wireless Channel Propagation Models Evaluation
Revista Cubana de Ingeniería, 2012 In the design of wireless communications systems, channel modelling is an efficient alternative to predict the path loss. In this paper we present a comparative study between Okumura, Hata, Walfisch-Bertoni and Walfisch-Ikegami propagation models.
Raikel Bordón López +2 more
doaj +1 more source
Revista de Lingüística y Lenguas Aplicadas, 2020 El presente estudio tiene por objetivo evaluar los resultados de un acercamiento cuantitativo a la selección temática del vocabulario con fines didácticos.
Jasper Degraeuwe, Patrick Goethals
doaj +1 more source
Dynamics of a hyperbolic system that applies at the onset of the oscillatory instability [PDF]
, 1998 A real hyperbolic system is considered that applies near the onset of the oscillatory instability in large spatial domains. The validity of that system requires that some intermediate scales (large compared with the basic wavelength of the unstable modes
Alvarez-Pereira C +18 more
core +2 more sources
Achromatic Metalens over 60 nm Bandwidth in the Visible and Metalens with Reverse Chromatic Dispersion. [PDF]
Nano letters (Print), 2017 In this Letter, we experimentally report an achromatic metalens (AML) operating over a continuous bandwidth in the visible. This is accomplished via dispersion engineering of dielectric phase shifters: titanium dioxide nanopillars tiled on a dielectric ...
M. Khorasaninejad +6 more
semanticscholar +1 more source
Colloidal processing of Fe-based metalceramic composites with high content of ceramic reinforcement
Boletín de la Sociedad Española de Cerámica y Vidrio, 2013 Major difficulties of processing metal-matrix composites by means of conventional powder metallurgy techniques are the lack of dispersion of the phases within the final microstructure. In this work, processing through colloidal techniques of the Fe-based
Escribano, J. A. +4 more
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Geofísica Internacional, 1974 Se han aplicado las técnicas del análisis de Fourier para determinar la velocidad de grupo y fase de las ondas superficiales, a través de las siguientes regiones: a) la Península lberica, b) el Océano Atlántico entre Azores y Portugal y c) el Mar de ...
G. Payo, E. Ruiz De La Parte
doaj +1 more source
A generally applicable atomic-charge dependent London dispersion correction.
Journal of Chemical Physics, 2018 The so-called D4 model is presented for the accurate computation of London dispersion interactions in density functional theory approximations (DFT-D4) and generally for atomistic modeling methods.
Eike Caldeweyher +6 more
semanticscholar +1 more source