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Análise de desempenho e de dados de um provedor de internet
(Universidade Federal de Santa Maria, 2016-12-16)
The Internet is present in our day life and it is essential for communication
and entertainment. However, Internet providers in countryside of Brazil
have a poor and limited connection in comparison with big cities. This ...
Um processo de classificação de regras de acessibilidade
(Universidade Federal de Santa Maria, 2015-12-09)
The web development has evolved in last years, in this way, growing
concerns in keeping the content accessible, that means ensuring all users equality access on informations. Currently, several accesibility verification ...
Geradores triboelétricos de baixo custo para a captação de energia a partir de pavimentos urbanos
(Universidade Federal de Santa Maria, 2018-12-07)
The conversion of mechanical energy into electrical energy from triboelectric phenomena has being actively searched due to growing demand for energy worldwide and proof of concept and applications are being made by using ...
Um estudo sobre Chatbots e sua aplicação no comércio eletrônico
(Universidade Federal de Santa Maria, 2018-12-11)
This paper presents a study about the conversational agents called chatbots, discussing their
history and evolution since its appearance, alongside the first concepts of Artificial
Intelligence and its firsts conceptions ...
Determinação do grau API e teor de enxofre e nitrogênio em petróleo usando ATR-FTIR e métodos quimiométricos
(Universidade Federal de Santa Maria, 2019-11-25)
Parameters such as API gravity and sulfur and nitrogen concentrations are important to determine crude oil quality. API, S and N grade determinations were evaluated by ASTM D-7042, ASTM D-5453 and ASTM D-4629 methods, ...
Síntese, análise estrutural e avaliação da atividade inibitória da enzima urease por oxidovanádio (IV) e dioxidovanádio (V) complexos derivados de hidrazidas aromáticas
(Universidade Federal de Santa Maria, 2019-07-05)
This work presents the synthesis and characterization of vanadium complexes and the potential of these compounds to inhibit the enzyme urease. The complexes were obtained from the aldol condensation between substituted ...
Síntese e caracterização de [2]rotaxano: estudo conformacional em solução
(Universidade Federal de Santa Maria, 2019-11-25)
Rotaxanes molecules became an important model for studying supramolecular chemistry by theirs unique motions and characteristics. In this context, this work was based in the synthesis of three molecules. One secondary ...
Método gravimétrico de Payzant em amostras de cimento asfáltico: uma investigação analítica para reduzir o consumo de reagentes e a geração de resíduos
(Universidade Federal de Santa Maria, 2019-11-25)
This work presents alternative methodologies to fractionation of petroleum asphalt cement (CAP) in sulfur species (saturated/aromatic compounds, thiophenic compounds and sulfide compounds) proposed by Payzant (1989). The ...
Síntese de 3-(trifluormetil)-4H-pirido[1,2-a]pirimidin-4-onas 2-substituídas via reação de trifluormetilação usando MFSDA
(Universidade Federal de Santa Maria, 2019-11-25)
The present work aims to perform a synthetic feasibility study following a satisfactory procedure to obtain a novel compound denominated 2-phenyl-3- (trifluoromethyl)-4H-pyrido[1,2-a]pyrimidin-4-one (4b) by using MFSDA as ...
Interação entre líquidos iônicos e óxidos de titânio e silício utilizando ressonância plasmônica de superfície
(Universidade Federal de Santa Maria, 2019-11-25)
This work presents the interactions between ionic-liquid-based active pharmaceutical ingredients (IL-APIs) bupivacaine ibuprofenate [BUP][IBU], 1,8-bis(3-methylimidazolium-1-yl) octane ibuprofenate [BisOct(MIM)2][2IBU], ...