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Estudo teórico das propriedades mecânicas e eletrônicas de sistemas bidimensionais do grupo IV sob deformações
(Universidade Federal de Santa Maria, 2018-08-02)
In this work we study two dimensional materials compounds of group IV elements such as
graphene, silicene and germanene under biaxial and uniaxial strain. The aim of this study is
understand the mechanical properties of ...
Estudo teórico das propriedades fotocatalíticas das ftalocianinas
(Universidade Federal de Santa Maria, 2019-02-20)
Phtalocyanines constitute a class of aromatic molecules that have been used by industry mainly
as dyes or pigments. More recently different Phtalocyanine derivatives were synthesized and are
been employed to fabricate ...
Propagação de alvos em redes neurais artificiais
(Universidade Federal de Santa Maria, 2019-02-22)
Artificial neural network is a type of artificial intelligence focued on the study of learning systems
with data. The training of neural networks requires a method that evolves their internal
parameters, which are ...
Populações estelares e gás ionizado em galáxias esferoidais centrais
(Universidade Federal de Santa Maria, 2019-07-10)
Central galaxies of dark matter massive halos, usually of spheroidal morphology, have distinct
physical properties of non-central spheroidal galaxies with comparable mass. Several studies
suggest that, because they are ...
Não-estacionariedade de séries temporais turbulentas e a grande variabilidade dos fluxos nas baixas freqüências
(Universidade Federal de Santa Maria, 2011-08-11)
Turbulent flow high complexity makes it difficult to describe complex phenomena,
such as the transport of vector and scalar quantities at the lower atmosphere,
making the analysis of experimental data, such as time series, ...
Modelo simplificado para turbulência na camada limite noturna
(Universidade Federal de Santa Maria, 2016-03-08)
The appropriate estimation of turbulent fluxes in very stable conditions is a great challenge
for numerical models that simulate the average behavior of the stable boundary layer.
Although many features of the flow are ...
Estudo do tunelamento em junções túnel de CoFeB=MgO=CoFeB
(Universidade Federal de Santa Maria, 2011-02-25)
Magnetic tunnel junctions (MTJ) ofCoFeB=MgO=CoFeB and multilayers of (CoFeB=MgO)x3 were produced using the technique of magnetron sputtering, where the insulating film was grown in an atmosphere reactive Ar +O. Multilayers ...
Estudo teórico de defeitos em nanotubos de BN
(Universidade Federal de Santa Maria, 2014-07-15)
Boron nitride (BN) is a compound formed by covalent bonds between boron
and nitrogen atoms. In the crystalline phase it can be found in different structures,
such cubic (c-BN), simgle hexagonal (h-BN), wurtzite (w-BN) ...
Dinâmica de fluxos de energia e CO2 em sistemas agrícolas com rotação de culturas no Sul do Brasil utilizando o método eddy covariance
(Universidade Federal de Santa Maria, 2018-03-27)
Analysis of carbon and heat fluxes in cropping systems is important for understanding the impacts
of different management practices and meteorological conditions, in the context of climate
change, on agriculture. We have ...
Calor específico de um modelo teórico para o composto URu2Si2
(Universidade Federal de Santa Maria, 2016-01-29)
The Heavy fermion URu2Si2 compound have attracted much interest in the last
decades due to its unusual behaviors and still an unsolved problem in Condensed Matter
Physics. Specific heat measurements in URu2Si2 compounds ...