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Caracterização do material e avaliação dimensional das telhas das lagartas dos blindados leopard 1A5-BR para processo de nacionalização do componente
(Universidade Federal de Santa Maria, 2023-08-18)
The city of Santa Maria has an Army unit that is responsible for the maintenance and
modernization of the Armored Leopard 1A5-BR. The maintenance process requires the supply
of components that in many cases are not ...
Estudo de carbonatação em concreto armado: causas, diagnósticos e proposta de soluções
(Universidade Federal de Santa Maria, 2023-02-09)
Concrete carbonation is one of the most frequent pathologies in reinforced concrete structures, it consists of the reaction that occurs when the carbon dioxide in the concrete present in the atmosphere penetrates the ...
Controlador RMRAC aplicado ao controle de rotação através do ângulo de passo das pás de uma turbina eólica
(Universidade Federal de Santa Maria, 2015-07-17)
This paper presents the design of a Robust Model Reference Adaptive Controller (RMRAC)
law applied to control the generator speed by means of the the blade pitch angle in an small
scale wind turbine. A literature review ...
Metodologia de modulação space vector ótima aplicada a conversores estáticos
(Universidade Federal de Santa Maria, 2023-12-13)
Power converters are main components in many electrical systems. They are composed by
semiconductors switches that operate in relatively high frequency compared with the ones
of interest in order to synthesize the required ...
Estudo do ensaio de flexão em quatro pontos como método para avaliação da tensão de aderência entre chapisco e substrato de concreto
(2022-08-18)
ABNT NBR 13528 (2019) specifies the requirements for executing tensile bond strength test
on inorganic mortars, both on site and in laboratory, through the test known as pull-off. This
test has been subject of studies ...
Modelagem e controle de um conversor CC-CC sepic isolado de interruptor único com célula dobradora de tensão na saída para aplicação em microinversor fotovoltaico
(Universidade Federal de Santa Maria, 2023-10-30)
This dissertation presents a study of an isolated DC-DC converter model for interfacing
or coupling via a DC bus with a DC-AC converter in a microinverter. The proposed
structure initially uses the already known sepic ...
Redução de estrona de esgoto doméstico em wetland construído de fluxo vertical com fundo saturado seguido de adsorção como etapa de polimento
(Universidade Federal de Santa Maria, 2024-01-19)
Steroid hormones are constantly excreted by humans and reach surface waters through the
discharge of domestic effluents. Although found in low concentrations in waters, can cause
tissues, organs and cells damage of humans, ...
Tribocorrosão do aço inoxidável martensitico AISI 420 cementado por plasma a baixa temperatura: sinergia erosão-corrosão
(Universidade Federal de Santa Maria, 2023-12-11)
ibocorrosive performance of AISI 420 martensitic stainless steel. The study is structured
in two parts. In the first part, experiments were conducted to assess the impact of erosion test
parameters, including impact ...
Microplásticos em água para consumo humano: diagnóstico e avaliação de riscos à saúde humana
(Universidade Federal de Santa Maria, 2023-12-19)
Microplastics (MP) are present in various environments and are considered ubiquitous. Although
contaminant identification is increasingly common, studies related to the risks associated with human
health still challenge ...
Estratégia metodológica inovadora na determinação do impacto de fatores subjetivos em modelos de previsão
(Universidade Federal de Santa Maria, 2024-02-05)
Traditional time series models consider only quantitative observations regarding a
certain aspect to be explained. However, there are situations that occur in certain
scenarios that can generate interference in observations, ...