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Itens para a visualização no momento 51-60 of 103
Estudo de junções túnel magnéticas com barreiras isolantes piezoelétricas de AlN
(Universidade Federal de Santa Maria, 2015-01-20)
We analyze the possibility of using aluminum nitride (AlN) as a piezoelectric tunnel barrier
in magnetic or non-magnetic tunnel junctions. Samples in the form of monolayers, bilayers,
multilayers and tunnel junctions ...
Lupinus lanatus Benth, Lupinus guaraniticus (Hassl.) C. P. Sm., Lupinus paranensis C. P. Sm. (Fabaceae) e Waltheria douradinha Saint Hilaire (Sterculiaceae): isolamento e identificação de seus metabólitos e atividade biológica
(Universidade Federal de Santa Maria, 2015-07-31)
The part of our constant search for new bioactive secondary metabolites of plant origin,
the aerial parts of three species of the genus Lupinus (Leguminoseae), and the bark of
the roots of the species Waltheria douradinha ...
Especiação de compostos de enxofre, níquel e vanádio em cimento asfáltico de petróleo (CAP) e sua relação com os processos de envelhecimento
(Universidade Federal de Santa Maria, 2015-10-27)
The speciation of sulfur compounds in CAP is very important, considering that these compounds are responsible for oxidation processes in asphalt binders, modifying their chemical and physical characteristics. The aim of ...
Estudo de uma sequência didática na perspectiva de Ausubel para alunos do sexto ano do ensino fundamental sobre astronomia
(Universidade Federal de Santa Maria, 2015-07-10)
Astronomy, the oldest science, besides having a motivating character and great educational potential, it also works as an integrative science, which is possible to empirically verify a large diffusion of conception of ...
Equações diofantinas lineares: possibilidades didáticas usando a resolução de problemas
(Universidade Federal de Santa Maria, 2015-03-13)
This work presents an educational experiment carried out in a 9th grade class of elementary school, in order to assess the didactic and pedagogical possibilities involving the Linear Diophantine Equations theme, with the ...
Escoamentos de retorno de umidade na Bacia do Prata
(Universidade Federal de Santa Maria, 2015-05-22)
This study evaluated the seasonality of moisture supply on part of the Bacia do Prata (BP) in
the context of transient anticyclones east of the Andes, phenomenon that receives the name
of moisture return (RU). This ...
Especificação de uma arquitetura para migração de máquinas virtuais utilizando ontologias
(Universidade Federal de Santa Maria, 2015-07-23)
Cloud computing is a new area in computing, providing new perspectives in the area
of interconnect technologies and raises issues in architecture, design and implementation of existing
networks and data centers. Currently ...
Decomposição de carvão com elevado teor de cinzas para determinação simultânea de As, Cd, Hg, Pb e S por ICP-OES
(Universidade Federal de Santa Maria, 2015-09-21)
In this work, sample preparation methods for decomposition of coal with high ash content (14-
54%) for further simultaneous determination of As, Cd, Hg, Pb and S by inductively coupled
plasma optical emission spectrometry ...
Descrição da camada limite atmosférica sobre o Oceano Atlântico sudoeste através de dados observacionais
(Universidade Federal de Santa Maria, 2015-05-27)
Between 3-12 December 2012, the Oceanographic Vessel Alpha Crucis held oceanographic stations in the Southwestern Atlantic Ocean in support to both SAMOC (South Atlantic Meridional Overturning Circulation) and ACEx (Atlantic ...
Determinação multiclasse de resíduos de medicamentos veterinários em músculo ovino por HPLC-FD e UHPLC-MS/MS
(Universidade Federal de Santa Maria, 2015-02-27)
The application of good livestock practices in the sheep industry is a growing concern on food security due to the increase of financial transactions in this sector in Brazil, mainly due to imports. To perform the monitoring ...