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Projeto e construção de uma bomba de calor a CO2 operando em ciclo transcrítico e modelagem dinâmica do conjunto evaporador solar-válvula de expansão
(Universidade Federal de Minas GeraisUFMG, 2013-07-05)
Recently, the interest for natural fluids has increased by industry and scientific community as a way of replacing the traditional CFCs and HCFCs. Then, the CO2 presents itself as one of the most promising alternatives ...
Raman spectroscopy of nanographites
(Universidade Federal de Minas GeraisUFMG, 2006-09-28)
This work presents the application of the Raman spectroscopy for the study and characterization of nanographite systems. We report the ¯rst detection of nanographite ribbons on a highly oriented pyrolytic graphite substrate ...
Desenvolvimento de implantes poliméricos intraoculares contendo etoposídeo destinados ao tratamento do retinoblastoma
(Universidade Federal de Minas GeraisUFMG, 2014-09-12)
Retinoblastoma is an intraocular most common childhood malignancy and its treatment by systemic chemotherapy has some devantagens: limited penetration of the drug to the posterior segment of the eyeball and systemic toxicity. ...
Risco de infecção pelos vírus das hepatites B e C nos trabalhadoresda coleta de resíduos de serviços de saúde em Belo Horizonte - MG
(Universidade Federal de Minas GeraisUFMG, 2016-07-13)
Human contact with waste involves biological, chemical and physical health damages of workers involved in the collection, transportation and storage. The exposure to wastes covers factors such as excessive noise, solar ...
Desenvolvimento de métodos analíticos para a análise de própolis utilizando técnicas espectrométricas e análise multivariada
(Universidade Federal de Minas GeraisUFMG, 2013-05-24)
In this work, chemometric methods of exploratory analysis such as Principal Component Analysis and Partial Least Squares Discriminant Analysis were used to classify commercial extracts of propolis from southern and ...
Raman spectroscopy of graphene: probing phonons, electrons and electron-phonon interactions.
(Universidade Federal de Minas GeraisUFMG, 2009-09-18)
Since the identification of mono and few graphene layers in a substrate in 2004, intensive work has been devoted to characterize this new material. In particular, Raman spectroscopy played an important role in unraveling ...
Aspectos ambientais, parâmetros produtivos e nutricionais da Urochloa decumbens em sistema silvipastoril com diferentes arranjos
(Universidade Federal de Minas GeraisUFMG, 2018-01-31)
The objective of this paper was to evaluate the productivity and bromatological composition of Urochloa decumbens (signalgrass), the luminosity in understory and the chemical parameters of the soil in silvopastoral system ...
Avaliação das alterações do fluido crevicular gengival drenado de tecidos gengivais clinicamente normais submetidos à laser em baixa intensidade: estudo em anima nóbile
(Universidade Federal de Minas GeraisUFMG, 2008-07-04)
In periodontology the gingival tissue, peripheral blood flow and crevicular gingival fluid (which normally comes out of the gingival socket) are the most important immune barriers acting as defense mechanisms at the front ...
Estudo de tensões e modos de falha no desenvolvimento de adesivos nanomodificados e juntas coladas
(Universidade Federal de Minas GeraisUFMG, 2016-05-31)
Until recently, the use of high performance composite materials was restricted to a few high-tech industries, mainly for financial reasons. However, with the technological de-velopment of manufacturing processes and the ...
Radionuclídeos naturais em minas subterrâneas brasileiras
(Universidade Federal de Minas GeraisUFMG, 2015-09-18)
Rock, soil and water contain 238U and 232Th and their decay products. The distribution of these radionuclides differs in terms of activity concentration depending on the mineral type and origin. All ore processing releases ...