Buscar
Mostrando ítems 1-10 de 2142
Investigation of Charged Particles Radiation Moving in a Homogeneous Dispersive Medium
(Materials & Energy Research Center-Merc, 2017)
In this work, we use Drude-Lorents model description to study the radiation of a charged particles moving in a homogeneous dispersive medium. A suitable quantized electromagnetic field for such medium is utilized to obtain ...
Classification of dispersion equations for homogeneous, dielectric-magnetic, uniaxial materials
(Optical Society of America, 2006-12)
The geometric representation at a fixed frequency of the wave vector (or dispersion) surface ω(k) for lossless, homogeneous, dielectric-magnetic uniaxial materials is explored for the case when the elements of the relative ...
Seed dispersal and predation in the endemic Atlantic rainforest palm Astrocaryum aculeatissimum across a gradient of seed disperser abundance
(Springer Tokyo, 2009-11-01)
Tropical forests have been subject to intense hunting of medium and large frugivores that are important in dispersing large-seeded species. It has been hypothesized that in areas with extinction or low abundance of medium ...
The angiosperm flora of the Archipelago Juan Fernandez (Chile): Origin and dispersal
(National Research Council Canada-NRC Research Press, 2006-12)
We review the hypothesized origin and the methods of arrival of the angiosperm colonists to the Juan Fernandez Islands. We also summarize the dispersal capabilities of the current flora, including data on fruit type, fruit ...
Uniaxial dielectric media with hyperbolic dispersion relations
(John Wiley & Sons Inc, 2006-02)
Planewave propagation with hyperbolic/hyperboliclike characteristics in uniaxial dielectric media is investigated. The phase velocity is positive with respect to the time-averaged Poynting vector for both evanescent and ...
Optimal Integration of Dispersed Generation in Medium-Voltage Distribution Networks for Voltage Stability Enhancement
(Cartagena de Indias, 2022-01-25)
: This study addresses the problem of the maximization of the voltage stability index (λcoefficient) in medium-voltage distribution networks considering the optimal placement and sizing of dispersed generators. The problem ...
Stabilization of a (3+1)-dimensional soliton in a Kerr medium by a rapidly oscillating dispersion coefficient
(American Physical Soc, 2005-01-01)
Using the numerical solution of the nonlinear Schrodinger equation and a variational method it is shown that (3 + 1)-dimensional spatiotemporal optical solitons can be stabilized by a rapidly oscillating dispersion coefficient ...
Stabilization of a (3+1)-dimensional soliton in a Kerr medium by a rapidly oscillating dispersion coefficient
(American Physical Soc, 2005-01-01)
Using the numerical solution of the nonlinear Schrodinger equation and a variational method it is shown that (3 + 1)-dimensional spatiotemporal optical solitons can be stabilized by a rapidly oscillating dispersion coefficient ...
Stabilization of a (3+1)-dimensional soliton in a Kerr medium by a rapidly oscillating dispersion coefficient
(2005-01-01)
Using the numerical solution of the nonlinear Schrödinger equation and a variational method it is shown that (3+1)-dimensional spatiotemporal optical solitons can be stabilized by a rapidly oscillating dispersion coefficient ...