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Caracterização de plasmas frios por espectroscopia óptica de emissão.
(Universidade Federal do Espírito SantoBRPrograma de Pós-Graduação em Engenharia QuímicaUFESMESTRADO EM ENGENHARIA QUÍMICA, 2019-02-20)
Apesar de pouco conhecido fora e até mesmo dentro da comunidade acadêmica, o plasma, considerado o quarto estado da matéria, é o estado mais abundante do universo conhecido. Define-se plasma como um meio eletricamente ...
The zonal motion of equatorial plasma bubbles relative to the background ionosphere
(American Geophysical Union, 2014-07-09)
The zonal motions of plasmas inside equatorial plasma bubbles are different from those in the background ionosphere. The difference was explained in terms of the tilt of bubbles by recent studies, but observational evidence ...
Evolution of equatorial ionospheric plasma bubbles and formation of broad plasma depletions measured by the C/NOFS satellite during deep solar minimum
(American Geophysical Union, 2011-03-08)
An unexpected feature revealed by the measurements of the Communication/Navigation Outage Forecasting System (C/NOFS) satellite is the presence of broad plasma depletions in the midnight–dawn sector during deep solar ...
Plasma confinement in tokamaks with robust torus
(2011-03-01)
We present a non-linear symplectic map that describes the alterations of the magnetic field lines inside the tokamak plasma due to the presence of a robust torus (RT) at the plasma edge. This RT prevents the magnetic field ...
Plasma confinement in tokamaks with robust torus
(2011-03-01)
We present a non-linear symplectic map that describes the alterations of the magnetic field lines inside the tokamak plasma due to the presence of a robust torus (RT) at the plasma edge. This RT prevents the magnetic field ...
Development of Magnetohydrodynamic Modes During Sawteeth in Tokamak Plasmas
(American Institute Of Physics, 2013-07)
A dynamical analysis applied to a reduced resistive magnetohydrodynamics model is shown to explain the chronology of the nonlinear destabilization of modes observed in tokamak sawteeth. A special emphasis is put on the ...
Comparison Between Conventional And Transferred Dbd Plasma Jets For Processing Of Pdms Surfaces
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCPiscataway, 2017)
Influência de tratamentos a plasma na resistência à corrosão e na propriedade de adesão de uma camada protetiva sobre a superfície de ligas de alumínio
(Universidade Estadual Paulista (Unesp), 2016-02-16)
Neste trabalho amostras da liga de alumínio (Al) AA7075 foram expostas à dois tipos de plasmas atmosféricos frios: Descarga por Barreira Dielétrica durante 5 min, 7,5 min, 10 min e 15 min e ao jato de plasma por 20 s, 30 ...