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Estudo das propriedades eletrônicas e estruturais da heterojunção dos nanotubos de nitreto de boro e nitreto de alumínio
(Universidade Federal de Santa Maria, 2007-05-18)
In this work we present the study of the electronic and structural properties of the heterojunction formed by (10,0) zig-zag nanotubes of aluminum nitride (AlN) and boron nitride (BN). To simulate the system, we use periodic ...
Estudo da difusão turbulenta empregando modelos estocásticos Lagrangeanos
(Universidade Federal de Santa Maria, 2007-03-09)
In this work, the Lagrangian stochastic particle model LAMBDA is utilized to simulate the dispersion and the transport of contaminants under different atmospheric conditions. The analysis employs three different field ...
Efeitos da dependência em K da hibridização nas propriedades de um modelo de Hubbard d-p
(Universidade Federal de Santa Maria, 2007-09-26)
Não foi possível inserir o abstract.
Fluxos turbulentos de CO2 em uma área de arroz irrigado no RS
(Universidade Federal de Santa Maria, 2007-11-28)
This thesis quantifies the net change of CO2 (NEE) in an irrigated rice crop cultivation in
RS (Brazil). The research is part of the project CT-HIDRO, which presents as main purpose the
description of surface conditions ...
Modos quase-normais de buracos negros plano-simétricos anti-de sitter em d dimensões
(Universidade Federal de Santa Maria, 2007-08-22)
Quasinormal modes of plane-symmetric anti-de Sitter (AdS) black holes in d spacetime dimensions are investigated. Following the gauge invariant prescription developed by Kodama, Ishibashi and Seto (2000), fundamental ...
Deposição de nano-grãos de Co em uma matriz de CoO/Al2O3 por Magnetron Sputtering
(Universidade Federal de Santa Maria, 2007-10-20)
Granular magnetic systems can be composed by magnetic particles or clusters with size of some nanometers. These magnetic nanoparticles present different magnetic order phases, as superparamagnetic, and they can be embedded ...
Deposição de nano-camadas de VO2 por Magnetron Sputtering
(Universidade Federal de Santa Maria, 2007-04-13)
The vanadium dioxide (VO2) shows a metal-insulator transition (MIT) near the room temperature with huge changes in its electrical and optical behavior. Both the
electrical and optic properties, and even the transition ...
Estudo do parâmetro de ordem e do momento magnético em borocarbetos pseudoquaternários
(Universidade Federal de Santa Maria, 2007-03-27)
Experimental data show that the dissolved impurities of the Mn presents a magnetic moment when substitute the Ni atom in pseudoquaternary borocarbide Y (Ni(1−x)Mx)2B2C, this is not observed if the impurities are Fe and Co. ...