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Desenvolvimento da modulação Space Vector para um inversor trifásico multinível híbrido assimétrico de nove níveis por fase com Ponte-H em cascata
(2017-09-29)
This dissertation proposes to develop the space vector (SV) modulation for a three phase hybrid asymmetric multilevel inverter of nine levels per phase with cascaded H-bridge (CHB). Performance verification occurs through ...
Estudo sobre oportunidades de recuperação de calor em uma indústria frigorífica para substituição de uma caldeira geradora de vapor por um aquecedor de água
(2017-08-15)
From among the constants climatic changes that has been occurring throughout the ages, undoubtedly the what worries man is temperature variation, caused mainly by the increase far too consumption of fossil fuels and ...
Avaliação de cenários para substituição de uma frota veicular na administração pública baseada na determinação da vida útil econômica
(2017-08-15)
Brazilian Federal Constitution, created in 1988, was responsible for establishing ways to modernize brazilian public administration practices. The management administration model, proposed in the next decade, expanded the ...
Mínimos quadrados aplicados à super-resolução de vídeo
(2015-02-11)
In this work an adaptation of the Least Squares method applied to Super-Resolution image reconstruction is proposed aiming real time video (image sequences) reconstruction. Results demonstrate that the proposed implementation ...
Modelo para avaliação da vida útil econômica de máquinas e equipamentos utilizando a programação dinâmica e o método de Monte Carlo
(2017-08-24)
The replacement study of capital goods provides to the company an overview about the useful life of its assets and provides planning for effecting, within an optimal time, the exchange of the present good by a substitute ...
Eficiência da moagem de pó cerâmico em moinho agitador de esferas
(2017-11-16)
In this research, wet milling of silica powder was carried out up to nanoparticles level. A work strategy has been established in which maximum efficiency is achieved. The grinding efficiency is related to the smaller ...
Análise comparativa do desempenho de turbocompressores veiculares com câmara de combustão tubular na microgeração de energia
(2017-10-25)
This master's work presents the development of a work that has the objective of evaluating the composition of vehicular turbochargers for microgeneration of energy and to develop a tubular combustion chamber model to equip ...
Influências do revestimento no desgaste da ferramenta no processo hobbing
(2018-04-11)
The high demand of the industries, together with the need for high efficiency, promotes technological advances in the area of machining. Machining tool coverings come to meet this need, increasing the durability, and ...
Efeito do tratamento da microgeometria de ferramentas com revestimento diamantado no fresamento de eletrodo de grafite
(2018-05-02)
The rising need for manufacturing molds with increasingly smaller deadlines and costs is demanding from the toolmakers to customize and enhance their fabrication processes. One of the ways to achieve that is by improving ...
Avaliação de diferentes condições de temperatura de molde e hidratação no desempenho de compósitos de poliamida 6 com fibra de vidro
(2018-06-25)
The use reinforced thermoplastics in technical parts, produced by the injection process, has grown, reaching prominence in polymer transformation industry. In this study, two different materials (Lanxess and Technyl) made ...