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Mostrando ítems 3871-3880 de 8799
Carbeto de silício reforçado com fibras de Hi-Nicalon tipo S como revestimento de reatores PWR - avaliação neutrônica
(Universidade Federal de Minas GeraisUFMG, 2017-02-23)
In this study, Silicon Carbide reinforced with Hi-Nicalon type S fibers (SiC HNS) (proposed), was simulated as a nuclear fuel cladding of a PWR reactor, as well as the guide tubes. The results were compared with the Zircaloy ...
Análise estatística do comportamento térmico na região intermediária do molde de uma máquina de lingotamento contínuo de placas para predição de rompimento de pele.
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE ESTATÍSTICACurso de Especialização em EstatísticaUFMG, 2020-08-07)
The need for reliability in steelmaking process is permanently increasing. In this context, Usiminas has focused its efforts, at the steelmaking plants, towards continuously improving its processes, consequently ensuring ...
Materiais a base de colágeno com capacidade de autorreparo
(Universidade Federal de Minas GeraisUFMG, 2013-02-21)
Polyurethane microcapsules containing diisocyanate in their interior were synthetized by varying the stirring speed (1500, 1000 and 700 rpm) and the type of isocyanate (4,4-diphenylmethane diisocyanate (MDI) and isophorone ...
Análise numérica e projeto de experimento em escala do sistema da camada de água quente do Reator Multipropósito Brasileiro
(Universidade Federal de Minas GeraisUFMG, 2014-10-31)
The Brazilian Multipurpose Reactor (RMB) consists in a 30 MW open pool research reactor and its design is currently in development. The RMB is intended to produce a neutron flux applied at material irradiation for radioisotope ...
Pequenos polarons ligados e centros de cor em topázio
(Universidade Federal de Minas GeraisUFMG, 2010-08-04)
In the present work we studied the color beneficiation processes of colorless topaz, an abundant gemstone in Brazil. Blue topaz is the most internationally traded gemstone in the gem and market, reaching about 100 million ...
Comportamento dimensional de gessos dos tipos IV e V na confecção de modelos obtidos de moldes em duas diferentes temperaturas: 22 e 35 °C
(Universidade Federal de Minas GeraisUFMG, 2007-11-21)
The experiments It was conceived with the objective of to compare the procedures of reheating moldings with the leaking of cooled molds with types IV and V gypsum.The materials used were Adsil Vigodent, Express e Impregum ...
Uso integrado de modelagem matemática e sensoriamento remoto para compreensão da hidrodinâmica do reservatório Serra Azul/MG
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA HIDRÁULICAPrograma de Pós-Graduação em Saneamento, Meio Ambiente e Recursos HídricosUFMG, 2019-04-12)
Lakes and reservoirs are extremely important ecosystems due the variety of ecosystem services they offer. The monitoring of their water quality plays a key role in water resources management and water temperature, especially ...
Estudo do processo de piroexpansão de feldspatos pegmatíticos e caracterização tecnológica do feldspato potássico
(Universidade Federal de Minas GeraisUFMG, 2001-10-08)
This dissertation presents the mineralogical and technological characterization of the perthitic potassic feldspar (microcline) from pegmatites of the Linópolis region, Minas Gerais, and the analysis of its behavior for ...
Preparação e caracterização de anodo Ni/YSZ com aplicação em pilhas a combustível de óxido sólido
(Universidade Federal de Minas GeraisUFMG, 2013-02-25)
Solid Oxide Fuel Cells (SOFC) are devices that convert energy generated by electrochemical reaction into electrical energy and get highlighted because of their minimal emission of toxic pollutants and high efficiency. They ...
Clima urbano: um estudo aplicado a Belo Horizonte, MG
(Universidade Federal de Minas GeraisUFMG, 2012-05-04)
This work aim at analyzing the influence of the urban form and land use in the local climate using climate monitoring and numerical simulation through the microclimatic model ENVI-Met©. A selected area in the city of Belo ...