Buscar
Mostrando ítems 81-90 de 152
Desenvolvimento de um modelo lagrangiano para estimar a dispersão de escalares passivos em condições de meandro do vento horizontal
(Universidade Federal de Santa Maria, 2017-02-24)
The description of the effects of the wind meandering in the scalar dispersion is a challenging
task, since this type of flow represents a physical state characterized by multiple
scales. In this study, a Lagrangian ...
Tomografia PCA aplicada a cubos de dados no infravermelho próximo para a galáxia Seyfert Mrk 1066
(Universidade Federal de Santa Maria, 2014-06-30)
In this work, we apply the PCA Tomography technique (Principal Component Analysis) to data
cubes for the central region of the Seyfert 2 galaxy Mrk 1066. The observations were done with
the NIFS (Near-infrared Integral ...
Pseudogap e calor específico de um modelo de hubbard repulsivo
(Universidade Federal de Santa Maria, 2014-08-15)
The specific heat and the condensation energy of a two-dimensional Hubbard model,
suitable to discuss high Tc superconductors (HTSTC), is studied taking into account
hopping to first (t) and second (t2) nearest neighbors. ...
Efeito do tratamento térmico na relaxação magnética de microfios amorfos de CoFeSiB recobertos por vidro
(Universidade Federal de Santa Maria, 2012-02-27)
Magnetoimpedance has been proved to be an excellent tool to study the magnetization
dynamics and the ferromagnetic resonance (FMR) linewidth provides a convenient way
for measuring damping parameters in magnetic materials. ...
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 ...
Estudo de primeiros princípios de nanofios de inas submetidos a tensões extremas
(Universidade Federal de Santa Maria, 2015-03-30)
The ability to manipulate materials at the atomic scale turn it possible to look
for materials at the nanoscale that can supersede the performance of their bulk counterparts
in specific tasks. Nanowires, due to their ...
Estudo teórico de antissítios e impureza substitucional de oxigênio em nanofio de SiC
(Universidade Federal de Santa Maria, 2010-09-23)
In this work first we perform a study about the stability, and the electronic properties of SiC growth in the [111] direction when defects are present. We use the supercell method and the dangling bonds on the surface of ...
Crescimento de filmes finos de NbN por magnetron sputtering reativo
(Universidade Federal de Santa Maria, 2013-02-18)
In the last decades, several applications of niobium nitride thin films has been proposed
or effectively implemented. In the cubic δ − NbN phase, the bulk material presents a Tc for
the superconducting transition near ...
Formação de texturas cristalográficas em filmes finos de NbN
(Universidade Federal de Santa Maria, 2017-12-20)
Niobium nitride (NbN) thin films can be hard and resistant not only to mechanical wear but
also to chemically aggressive atmospheres. Additionally, they can present a superconducting
transition in temperatures that are ...
Um modelo para a evolução de redes de proteínas contemplando a transferência horizontal de genes
(Universidade Federal de Santa Maria, 2022-03-31)
Around us we find several examples of complex systems, which are composed of a large
number of elements that interact with each other in very complex ways. These systems
range from the World Wide Web itself to energy ...