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Estudo e testes de desempenho de proteção de linhas de transmissão AC conectadas a sistemas HVDC – estudo de caso aplicado à LT Garabi2 - Santo Ângelo
(Universidade Federal de Santa Maria, 2017-07-14)
The present work it’s about an study of protection of AC transmission lines connected to high voltage direct current (HVDC) systems. First, it presents a theoretical foundation regarding the protection functions and ...
Desenvolvimento de adsorventes de nanofibras de quitosana/nylon 6 e tanino/nylon 6 por Forcespinning para remoção de cromo em meio aquoso
(Universidade Federal de Santa Maria, 2017-08-25)
New nanofiber materials composed of chitosan/nylon 6 and tannin/nylon 6 were prepared by the Forcespinning method and were used as adsorbents for the removal of chromium VI from aqueous solutions. Under optimum experimental ...
Estudo de algoritmos backstepping para o controle de correntes e estimação da velocidade rotórica em motores de indução trifásicos
(Universidade Federal de Santa Maria, 2017-06-19)
This master dissertation presents the development of current control strategies and
the development of rotor speed observers using Backstepping algorithms. The Backstepping
algorithm is a recursive method used for ...
Estudo de resistência mecânica do concreto compactado com rolo com emprego de material fresado asfáltico para base de pavimentos
(Universidade Federal de Santa Maria, 2017-08-25)
The increase in traffic volume and the appearance of heavier vehicles are causing a greater degradation and deformation in the Brazilian road network, consequently raising maintenance costs, forcing managers and researchers ...
Avaliação toxicológica do efluente de uma indústria de beneficiamento de batatas utilizando Cyprinus carpio como bioindicador
(Universidade Federal de Santa Maria, 2017-08-04)
When released into water bodies, the effluent from the potato processing industry can cause serious damage to aquatic biota, causing even death of fish through intoxication. Fish have been widely used in ecotoxicological ...
Modelo de gestão para institutos de pesquisa, desenvolvimento e inovação
(Universidade Federal de Santa Maria, 2017-08-29)
The fulfillment of research, development and innovation projects has been encouraged in the last few years aiming to stimulate the generation and application of knowledge focused on new products, processes and technologies. ...
Caracterização acustica de telhas sanduíche ou compostas e seus componentes: estudo de caso
(Universidade Federal de Santa Maria, 2017-07-10)
Users are increasingly complaining about the acoustic comfort of buildings,
especially in large urban centers. A NBR 15575: 2013 - Housing Buildings -
Performance brought changes in the construction sector, which had to ...
Proposta de otimização do processo de obtenção de furos de pequenas dimensões em liga de titânio Ti-6Al-4V
(Universidade Federal de Santa Maria, 2017-07-21)
Multi-objective optimization of multiple process characteristics, aiming at quality improvement, is
necessary as it directly influences decision making, which is a determinant element for the satisfactory
execution of a ...
Adsorção do corante verde malaquita utilizando palha de milho modificada por ultrassom
(Universidade Federal de Santa Maria, 2017-07-17)
Colored effluents containing dyes are generated in different industrial sectors, such as textiles, cellulose,
paper, leather, paint, among others. The treatment of these effluents is a current environmental problem, ...
Hidrogeoquímica do fluoreto em porção da zona de afloramentos do Sistema Aquífero Guarani na região central do estado do Rio Grande do Sul
(Universidade Federal de Santa Maria, 2017-07-25)
This work investigated the hydrogeochemical behavior of groundwater with fluoride (F-) anomalies and its association with hydrochemical types in a portion of the Outcrop Zone (OZ) of the Guarani Aquifer System (GAS). The ...