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Interação da matéria de vórtices com estruturas de defeitos : detecção das primeiras penetrações
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Física - PPGF, 2009-08-07)
This thesis results from a systematic study of the interactions between penetrated vortices and pinning centers carried out on structured superconductors films of YBCO, Nb and Pb. A regular array of pinning centers (antidots, ...
The energy budget of stellar magnetic fields
(Royal Astronomic Society, 2015-06-02)
Spectropolarimetric observations have been used to map stellar magnetic fields, many of which display strong bands of azimuthal fields that are toroidal. A number of explanations have been proposed to explain how such ...
Study of the Factors Responsible for the Rheology Change of a Brazilian Crude Oil under Magnetic Fields
(Amer Chemical SocWashingtonEUA, 2011)
Study of magnetic field enhanced plasma immersion ion implantation in Silicon
(Iop Publishing Ltd, 2014-01-01)
A comparison between experimental measurements and numerical calculations of the ion current distribution in plasma immersion ion implantation (PIII) with external magnetic field is presented. Later, Silicon samples were ...
Avaliação experimental sobre o efeito de ionização do solo devido à injeção de correntes impulsivas
(Universidade Federal de Minas GeraisUFMG, 2008-09-29)
This work presents the results of an experimental research on the behavior of soil samples subjected to lightning-patterned impulsive currents, with a view to assessing the dynamics of ionization soil phenomenon. The work ...
Mechanisation in sample preparation by microwaves: The state-of-the-art.
(Soc Brasileira QuimicaSao PauloBrasil, 1997)
The use of pulsed electric acoustic technique for measuring the polarization reversal in ferroelectric ceramic samples
(2002-01-01)
The pulsed electric acoustic technique, PEA, has been usually applied to probe space charge profiles in polymers. Preliminary PEA results using a ferroelectric ceramic are presented. If the reverse applied electric field ...
The use of pulsed electric acoustic technique for measuring the polarization reversal in ferroelectric ceramic samples
(2002-01-01)
The pulsed electric acoustic technique, PEA, has been usually applied to probe space charge profiles in polymers. Preliminary PEA results using a ferroelectric ceramic are presented. If the reverse applied electric field ...
A statistical evaluation of the field emission for copper oxide nanostructures
(ELSEVIER SCIENCE BV, 2008)
A statistical data analysis methodology was developed to evaluate the field emission properties of many samples of copper oxide nanostructured field emitters. This analysis was largely done in terms of Seppen-Katamuki (SK) ...
Coherent radar imaging: signal processing and statistical properties
(American Geophysical Union, 1997-11)
The recently developed technique for imaging radar scattering irregularities has opened a great scientific potential for ionospheric and atmospheric coherent radars. These images are obtained by processing the diffraction ...