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Relativistic dispersion effects on SS433 jets
(SPRINGER, 2008)
We here investigate the dispersion properties of radiation in the SS433 relativistic jets. We assume that the jet is composed of cold electron-proton plasma immersed in a predominantly parallel magnetic field to the jet ...
A 1D model for the dynamic analysis of magneto-electro-elastic beams with curved configuration
(Pergamon-Elsevier Science Ltd, 2015-07)
The scope of the present paper is to present some new contributions in the dynamics of curved/straight MEE beams. The structure consists of a curved beam constructed with ceramic/metallic materials whose elastic behavior ...
Gold nanoparticles for selective and remote heating of β-amyloid protein aggregates
(2007)
Nanoparticles can be made to respond resonantly to a time-varying electromagnetic field with advantageous results related to the transfer of energy from the exciting field to the nanoparticles. The surface of each particle ...
Predição de cobertura radioelétrica em terrenos irregulares iluminados por fonte de onda esférica: uma abordagem via equações integrais e CBFM
(Universidade Federal de Minas GeraisUFMG, 2011-10-03)
This work deals with the forward and backward propagation prediction of electromagnetic fields over irregular terrains in the VHF-UHF bands (30 MHz to 3 GHz) that is necessary in wireless planning. The terrain is modeled ...
Métodos assintóticos para predição banda larga da cobertura radioelétrica em ambientes urbanos
(Universidade Federal de Minas GeraisUFMG, 2009-02-13)
This work deals with radio-propagation prediction in urban environments by means of the Uniform Theory of Diffraction (UTD), both in frequency and time domains. The UTD is an asymptotic technique that uses the optical paths ...
Paralelo entre as teorias quântica e semi-clássica da interação átomo-campo no modelo Jaynes-Cummings
(Universidade Federal de Minas GeraisUFMG, 2009-01-01)
We studied a very simple model of the interaction between radiation and matter, named Jaynes-Cummings model. Matter is represented by an atom, treated as a two level system, which interacts with one single mode of the ...
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 ...
Síntese de antena duplo refletora com diagrama de radiação ISOFLUX
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA ELETRÔNICAPrograma de Pós-Graduação em Engenharia ElétricaUFMG, 2022-01-21)
This work presents the formulation and synthesis for the circularly symmetric dual-reflector Cassegrain and its aperture field, which, according to the principles of Geometrical Optics (GO), radiates an electromagnetic ...
Método de obtenção das magnetizações de blocos magnéticos de NdFeB a partir de perfís de curvas de integral de campo magnético
(Universidade Federal de São CarlosUFSCarCâmpus São CarlosEngenharia Física - EFi, 2022-09-21)
Synchrotron light is a type of electromagnetic radiation emitted when relativistic charged particles are subjected to an acceleration perpendicular to their velocity, such as the acceleration created by the force of a ...
The Theoretical Rationale of the Existence of Electric and Magnetic Fields Spreading Instantaneously
(Progress In Electromagnetics Research, 2012-08)
In this note, we show that the use of the Helmholtz vector decomposition theorem
leads to the theoretical rationale of the existence of solenoidal electric and magnetic ¯elds which
can spread instantaneously.