Buscar
Itens para a visualização no momento 71-80 of 238
Avaliação do impacto da inundação na resistência e deformabilidade de um solo laterítico e colapsível: estudo experimental e numérico
(Universidade Federal de Santa Maria, 2021-08-11)
In the northern region of the state of Rio Grande do Sul it is common the presence of lateritic soils of medium to clayey texture, unsaturated and with high porosity. The change in the humidity in this type of soil is ...
Reciclagem de materiais fresados de diferentes fontes em misturas estabilizadas para uso em camadas granulares de pavimentos
(Universidade Federal de Santa Maria, 2021-07-14)
The recycling of Reclaimed Asphalt Pavement (RAP) materials generated in road restoration services is a technique that allows the preservation of financial and environmental resources. This research evalu-ated the use of ...
Detecção de faltas entre espiras em geradores de fase dividida: uma abordagem baseada em morfologia matemática
(Universidade Federal de Santa Maria, 2021-01-15)
The stator of Synchronous Generator is susceptible to different types of failures, short circuits and
abnormal operating conditions. Among the defects, we can mention the single-phase, two-phase, threephase
faults and ...
Ferramenta de código aberto para simulação em acústica de salas na região de baixa frequência
(Universidade Federal de Santa Maria, 2021-09-20)
In this work, a tool for low frequency room acoustics simulation is presented. It is written in
Python and the Boundary Element Method is used. Practical aspects related to the characterization
of sound sources and ...
Medidas de trabalhabilidade em pastas geopoliméricas de metacaulim e sua correlação com propriedades e características reológicas
(Universidade Federal de Santa Maria, 2021-04-28)
Geopolymers are currently considered as alternative binder more sustainable when comparted to traditional Portland cement (PC), as well as better mechanical performance and extended service life, if these materials are ...
Potencial valorização do lodo de estação de tratamento de esgoto como matéria prima para produção de blocos cerâmicos
(Universidade Federal de Santa Maria, 2021-04-26)
Sewage sludge is an extensively produced residue directly related to population growth and economic
development. Wastewater treatment plants generate sewage sludge classified as a not dangerous residue class
II-A (not ...
Co-otimização de fluxo de potência ótimo dinâmico baseado em preço com agendamento de reparos
(Universidade Federal de Santa Maria, 2020-12-21)
The main objective of the electric distribution system operators is to supply energy to the
loads at the lowest generation cost over a given time horizon, anticipating sudden changes
in demand and generation, a problem ...
Controlador adaptativo robusto por modelo de referência no eixo zero aplicado ao controle de desbalanço de tensões de fase em geradores de indução autoexcitados isolados
(Universidade Federal de Santa Maria, 2020-02-27)
In this work, a voltage and frequency regulation system was implemented for a micro hidropower
generation plant using an induction generator operating in standalone mode or not connected
to a commercial energy distribution ...
Matheurística dinâmica e pro-ativa integrada a inversores híbridos para o gerenciamento robusto de recursos energéticos distribuídos
(Universidade Federal de Santa Maria, 2020-12-18)
The growing adhesion of residential consumers to renewable sources of Distributed Generation (DG), through small generation systems, combined with the perspective of Energy Storage Systems (ESS) in integration with energy ...
Rede neural NARX aplicada ao amortecimento de oscilações de potência
(Universidade Federal de Santa Maria, 2020-10-29)
The dynamics of power systems with time-varying and non-linear elements is a
complex matter since it involves continuous adjustments among every part for a
suitable and efficient performance. Small disturbances in the ...