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Itens para a visualização no momento 21-30 of 35
Remoção de bactérias e genes de resistência a antibióticos em estações de tratamento de águas residuais urbanas
(Universidade Federal de Santa Maria, 2019-02-28)
The spread of antibiotics bacterial resistance is a subject of great concern for public and
environmental health, caused mainly by the indiscriminate use of antibiotics and the incorrect
discard of ...
Previsão hidroambiental integrada do sistema hidrológico do Taim e lagoa Mirim – RS
(Universidade Federal de Santa Maria, 2019-11-07)
The Taim Wetland (BT), located in the extreme south of Brazil, in a region characterized by recurrence of conflicts over water use, which involve region's main economic activity, flood irrigated rice cultivation, and ...
Controle robusto H∞ por meio de LMIS aplicado a conversores conectados
(Universidade Federal de Santa Maria, 2019-12-16)
This work presents a robust current control for grid-connected converters subject
to uncertain parameters in the grid impedance. Specifically, a voltage source inverter is
connected by means of an LCL filter to a ...
Recuperação de neodímio a partir de fontes secundárias utilizando ácidos orgânicos e CO2 supercrítico
(Universidade Federal de Santa Maria, 2019-11-28)
Technological innovation has brought with it a number of electro-electronic equipment, but its
disposal has been faster, making these wastes a concern, as to their destination and the supply
of raw materials. These ...
Gestão organizacional da geração distribuída em concessionárias de energia elétrica no Brasil
(Universidade Federal de Santa Maria, 2019-12-19)
The transformation of the electricity sector towards a more diversified and sustainable electricity production has spread the importance of generation distributed from renewable sources. Despite the national scenario of ...
Desempenho hidrológico de revestimentos de concreto de cimento Portland aplicados a pavimentos permeáveis
(Universidade Federal de Santa Maria, 2019-12-06)
The urbanization, associated with the population growth, is responsible for waterproofing surfaces, which increases inundation events frequency. To ease these problems, among other actions, come permeable pavements. This ...
Desenvolvimento de prato perfurado sem downcomer com geometria fractal: avaliação fluidodinâmica e ambiental
(Universidade Federal de Santa Maria, 2019-12-16)
Distillation columns are classified as tray column, packing or mixed (hybrid)
depending of tower internal type placed inside. Tray internals are classified in with or
without downcomer and the simplest models of trays ...
Efeitos sinérgicos de adições minerais em concretos por empacotamento de partículas: resistência à compressão axial, microestrutura e absorção de água
(Universidade Federal de Santa Maria, 2019-10-10)
This research aims to study the physical, chemical and synergistic effects of lime filler (LF), fly ash (FA) and rice husk ash (RHA) addition in concretes dosed from particle packing theories. Both mixtures alone (binary ...
Método ativo virtual para detecção de ilhamento em geradores síncronos distribuídos
(Universidade Federal de Santa Maria, 2019-01-10)
This work presents a local and passive islanding detection method for synchronous distributed
generation (DG) directly connected to the distribution power system. Due to the characteristics
of these generation system, ...
Multi-objective design tool for optimizing capacitor selection in power converters based on the mission profile
(Universidade Federal de Santa Maria, 2019-09-13)
Sistemas de eletrônica de potência eficientes e confiáveis a longo prazo são um dos próximos grandes
desafios no setor de energia. A eficiência e a confiabilidade do conversor de potência são elementoschave
para expandir ...