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Itens para a visualização no momento 111-120 of 157
Síntese, cristalografia e atividade biológica de complexos triazenidos de Au(I), Ag(I), Pd(II) E Pt(II)
(Universidade Federal de Santa Maria, 2012-08-24)
This work presents the synthesis of compounds and their triazenes complexes of gold(I), silver(I), platinum(II) and paladium(II). Triazenes have three nitrogen atoms connected in sequence [ N=N N(H) ] and, when deprotonated, ...
Solução de problemas em semiespaço na dinâmica de gases rarefeitos baseada em modelos cinéticos
(Universidade Federal de Santa Maria, 2012-02-28)
The method discrete ordinates is used to solve problems involving rarefied gas dynamics. In this
work, a version of the analytical method discrete ordinates (ADO) is used to solve problems in a
semi-infinite. The complete ...
Formulacão unificada para modelos cineticos derivados da equação de Boltzmann com condições de contorno generalizadas
(Universidade Federal de Santa Maria, 2012-02-28)
In this paper, we present numerical results obtained from the FORTRAN language for physical quantities of interest such as velocity profile, pro�le, heat ow rate, particle ow rate,heat ux and pressure tensor component. The ...
Emprego de oxigênio e peróxido de hidrogênio como auxiliares na decomposição de amostras biológicas por via úmida assistida por radiação micro-ondas
(Universidade Federal de Santa Maria, 2012-07-02)
In the present work it was investigated the possibility of using diluted HNO3 solutions for digestion of biological samples (milk powder and bovine liver) by microwave-assisted wet digestion. The possibility of use O2 and ...
Algoritmo genético acoplado a um método multi-grid e a teoria dos grafos para determinação da estrutura de equilíbrio de aglomerados atômicos
(Universidade Federal de Santa Maria, 2012-12-14)
In this work we present a proposal to improve Genetic Algorithm method by coupling
it to the techniques of discretization of the configurational space via the multi-grid
methodology, and by employing a topological selection ...
Avaliação de ações preventivas de riscos utilizando teoria de decisão e redes de Petri coloridas
(Universidade Federal de Santa Maria, 2012-04-18)
Risk management in software projects involves the definition of actions to
prevent risks identified for the project in order to minimize their effects or eliminate
them.The definition of preventive actions, and especially ...
Congelamento inverso em um modelo de vidro de spin fermiônico
(Universidade Federal de Santa Maria, 2012-10-03)
The present work studies the counterintuitive phenomenon of inverse transitions (IT). The
IT are a class of phase transitions (reversible) in which the ordered phase appears at higher
temperatures than the disordered ...
Automação no processo de vetorização de áreas de interesse e buffer variável sobre imagens de satélite
(Universidade Federal de Santa Maria, 2012-08-02)
The constant improvement in computer application development techniques,
combined with the technological advancement of electronic devices that support such
systems, comes with the most contributing significantly different ...
Descrição Booleana para eventos celulares: construção de redes, topologia e análise dinâmica
(Universidade Federal de Santa Maria, 2012-01-13)
This work presents a methodology to describe the dynamics
and topology of biological regulatory networks through the application of graph
theory. We model these networks using Boolean rules and simulations performed
with ...
Influência da precipitação pluviométrica na reflectância espectral da água do reservatório Passo Real, RS
(Universidade Federal de Santa Maria, 2012-03-22)
The water s reflectance related to pluviometric rate allows a characterization of natural and severe changes on the water s metabolism. Accordingly, the purpose of this research is to establish a relation between pluviometric ...