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Estimativa de distância da região HII galáctica RCW 87
(Universidade Federal de Santa Maria, 2007-02-27)
In this work we present a espectrophotometric study and a photometric study in the filters B, V , R and I from the stars of the galactic H II region RCW 87 whose coordinates in the celestial equatorial system are α = 15 h ...
Catálogo de intensidades de linhas de emissão de regiões HII
(Universidade Federal de Santa Maria, 2007-02-27)
A catalog of relative emission-line intensities is presented. It contains data on 215 H II regions in the Galaxy, Magellanic Clouds and in others galaxies, all totaling 23 140 emission line intensities. We have determined ...
Estudo dos processos de magnetização em microfios amorfos recobertos por vidro sob efeito de tensões mecânicas
(Universidade Federal de Santa Maria, 2008-01-30)
The study of the magnetization dynamics in amorphous microwires has attracted an increasing interest in the last two decades mainly due to its magnetic behavior characterized by a single and large Barkhausen jump, a feature ...
Estabilidade na camada limite atmosférica e intermitência nas pequenas escalas
(Universidade Federal de Santa Maria, 2008-12-18)
Although the understanding of turbulence is essential in many areas of science and technology, yet very little is known about its structure and its phenomenology. Since the first statistical models of decades of forty and ...
Um estudo da física de sistemas multiplicadores subcríticos acionados por aceleradores
(Universidade Federal de Santa Maria, 2008-01-30)
In this work were reviewed the operation principles of subcritical multiplying systems powered by accelerators (ADS) from the point of view of the neutron transport. To do this it was necessary to characterize theoretically ...
Estudo sobre a turbulência na camada limite planetária
(Universidade Federal de Santa Maria, 2008-01-31)
In this research was made a study about the development of the boundary layer in Pedras Altas – RS. This study is made in two parts, fist a theoretician introduction then some datum, collected from a meteorological tower, ...
Propriedades eletrônicas e estruturais de impureza substitucional de silício em nanotubos de BC2N
(Universidade Federal de Santa Maria, 2008-12-10)
Spin polarized density functional theory (SP-DFT) is used to investigate the incorporation of substitutional Si atoms in the zigzag (5,0) and in the armchair (3,3) BC2N nanotubes (NTs). Our results show that the Si impurities ...
Anomalias de traço e radiação de Hawking
(Universidade Federal de Santa Maria, 2007-03-08)
In the present work we obtain the general form for the anomalous stress-energy tensor for static black holes with spherical symmetry, for the three quantum vacuum states of interest in black holes physics. The particular ...
Construindo árvores filogenéticas com o uso de caminhadas aleatórias e geometria fractal
(Universidade Federal de Santa Maria, 2008-11-28)
The purpose of this study is to propose an alternative method to build phylogenetic trees using the fractal dimension calculated from (pseudo) random walks on mitochondrial DNA and ribosomal RNA of some species of living ...
Avanço do periastro e deflexão da luz no campo gravitacional de estrelas e buracos negros carregados e em rotação
(Universidade Federal de Santa Maria, 2007-03-08)
In the present study it is obtained analytic expressions to the periastron advance and light bending in the gravitational field of rotating and electrically charged black holes. First it is made a historical review emphasizing ...