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Magnetoimpedância como ferramenta para a caracterização magnética de microfios amorfos
(Universidade Federal de Santa Maria, 2006-09-22)
The possibility of exploring the magnetic properties of amorphous microwires in technological applications has attracted the attention of the scientific community in the last years. Beyond, the magnetoimpedance effect has ...
Estudo das propriedades térmicas de nanofios de silício
(Universidade Federal de Santa Maria, 2006-06-25)
In this work we present the results of the study of thermal stability of silicon
nanowires (SiNWs), carried out by computational simulation using Monte Carlo
methods. The study focuses on cylindrical nanowires grown in ...
Mapas de densidade e velocidade e estimativa de distância da região H II galáctica NGC 2579
(Universidade Federal de Santa Maria, 2006-08-17)
An observational study was accomplished about the range of eletron density in the HIIregion NGC 2579 and estimate its distance from the 8un and from the centre of the Galaxy. Long slit spectrophotometric data with high ...
A hipótese de turbulência localmente isotrópica e a universalidade da constante de Kolmogorov
(Universidade Federal de Santa Maria, 2006-05-03)
According to the Kolmogorov's fully developed turbulence theory established in 1941, there is an equilibrium range in which phenomenological quantities associated to the turbulence flow are described by laws of universal ...
Magnetoimpedância em multicamadas de Ni81Fe19/Cu com a corrente de sonda perpendicular ao plano do filme
(Universidade Federal de Santa Maria, 2006-06-02)
In this work the behavior of the magnetoimpedance (MI) in ferromagnetic
multilayered (Ni81Fe19/Cu) produced by magnetron sputtering was studied. In all
measurements, the probe current was applied perpendicularly to the ...
Avaliação do método do balanço da camada limite para a estimativa de fluxos turbulentos noturnos
(Universidade Federal de Santa Maria, 2006-10-27)
This work is about to verify the performance of the boundary layer budgeting method as alternative for measuring the surface turbulent fluxes in conditions that allow the
validation of the measurements with data taken ...
Transições de primeira ordem no modelo vidro de spin ising fermiônico em um campo transverso
(Universidade Federal de Santa Maria, 2006-10-31)
The present work analyzes the fermionic Ising spin glass model in a transverse magnetic field. The problem is written in the Grand Canonical ensemble with the spin operators represented by bilinear combinations of fermionic ...
Filmes finos de óxidos de vanádio depositados por sputtering reativo
(Universidade Federal de Santa Maria, 2006-05-18)
We have produced thin film samples of vanadium oxide, with different stoichiometry, by reactive magnetron sputtering from a metallic vanadium target. The thickness of the samples were maintained under 100 nm and glass or ...
Fotometria CCD UBVRI de aglomerados de estrelas das Nuvens de Magalhães
(Universidade Federal de Santa Maria, 2006-05-19)
We present UBVRI CCD photometry in the Johnson-Cousins photometric system for a sample of twenty nine Magellanic Cloud star clusters (Lindsay 16, 26, 29, 48, 53, 61, 66, 67, 72, 76, 79, 82, 83, 85 of the Small Cloud ...