Buscar
Mostrando ítems 1-8 de 8
Estudo de propriedades estruturais, eletrônicas e magnéticas de clusters de Rh13, Pd13 E Pt13
(Universidade Federal de Santa Maria, 2009-08-11)
This work shows a theoretical study of Rh13, Pd13, and Pt13 clusters, using first principles methods. We sought to understand aspects of stability and magnetic moment for these systems. The employed methodology was tested ...
Classificação espectral e determinação de distância de estrelas em dez regiões HII do hemisfério sul
(Universidade Federal de Santa Maria, 2009-03-11)
In order to determine distances of Southern Galactic HII regions, we carried out spectroscopic and photometric observations of the stellar content of a set of these objects. We have chosen objects only visible in the South ...
Caos na camada limite atmosférica noturna
(Universidade Federal de Santa Maria, 2009-04-08)
A three-equation model, based on prognostic expressions for the Richardson number, turbulent kinetic energy and wind shear is proposed to represent turbulent behavior in the nocturnal boundary layer (NBL). Integration ...
Catálogo de dados espectroscópicos de regiões HII e estudos aplicados
(Universidade Federal de Santa Maria, 2009-03-20)
Quantitative measurements of line intensities have been made since the beginning of the last century. The quantity and quality of the data available have increased drastically with the advent of electronic detectors. ...
Variações espaciais de propriedades físicas em Puppis A
(Universidade Federal de Santa Maria, 2009-05-27)
The current work presents some physical proprieties from a region of the galactic supernova remnant Puppis A. For that, long slit spectrophotometric data were obtained in distinct positions. The data were obtained in 14 ...
Nanotubos de carbono interagindo com selênio: uma simulação de primeiros princípios
(Universidade Federal de Santa Maria, 2009-01-15)
This work presents a theoretical study about the interaction between semiconducting carbon nanotubes (8,0) single-wall (SWNT), with selenium nanostructures by first principles calculations using the density functional ...
Estudo das propriedades eletrônicas e estruturais em nanotubos de fosfeto de índio
(Universidade Federal de Santa Maria, 2009-09-29)
In this work, using first principles study based in framework of the density functional theory with the local density approximation (LDA) for the exchange-correlation
functional, we developed a detailed study about the ...
Estudo de primeiros princípios de defeitos nativos em monóxido de berílio
(Universidade Federal de Santa Maria, 2009-10-19)
The present thesis shows a study of native defects (vacancies and antisites) in
Beryllium Monoxide (BeO) by means of first principle calculations within Density
Functional Theory (DFT). We made use of Local Density ...