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Atividades experimentais investigativas como contribuição ao desenvolvimento de modelos mentais de conceitos químicos
(Universidade Federal de São Carlos, 2013-02-22)
In this study, during the school year, the evolution of mental models from first grade high school students about different chemical concepts was investigated by the use of experimental inquiry activities. The research was ...
Estudo empírico-teórico de compósitos baseados em polímeros condutores para conversão e armazenamento de energia
(Universidade Federal de São Carlos, 2018-10-26)
The fast obsolescence of still functional devices causes an extensive e-waste generation and an exacerbated natural resources consumption for the manufacture of new products. In this sense, the development of abundant ...
Síntese e caracterização de nanotubos de TiO2 preparados eletroquimicamente
(Universidade Federal de São Carlos, 2016-04-20)
In the field of nanotechnology, the titanium dioxide (TiO2) has been widely studied for its optical and electrical properties. This oxide is an n-Type semiconductor and is found naturally in
different crystalline phases. ...
Microfabricação de guias ópticos em vidros óxidos de metais pesados contendo terras-raras
(Universidade Federal de São Carlos, 2016-03-23)
In this study, we present the production and characterization of a novel binary glass
system: (100-x)SbPO4-xGeO2 where x = 30, 40, 50, 60, 70, 80 and 90 mol %. The
dependence of GeO2 content on thermal, structural and ...
Contaminantes emergentes em estações de tratamento de esgoto aeróbia e anaeróbia
(Universidade Federal de São Carlos, 2016-11-21)
The wastewater treatment plant (WWTPs) play an important role to ensuring the health and preservation of aquatic ecosystems through biological removal (mainly) of pollutants and microorganisms in the sanitary and industrial ...
Desenvolvimento de plataformas nanométricas híbridas baseadas em polímero/enzima visando aplicações em biossensores
(Universidade Federal de São Carlos, 2016-10-27)
Foodborne illness cases are common in Brazil and in the world. However, in many cases the microorganism causing the illness cannot properly identified. In addition, traditional analyses usually employed for identifying ...
Desenvolvimento de procedimentos para a determinação de enxofre em diesel, biodiesel e óleo lubrificante usando ICP OES e ICP-MS
(Universidade Federal de São Carlos, 2014-02-19)
Since 1990 concerns about environmental and public health have stimulated the restrictions of maximum sulfur content in fuels allowed by legislation, especially in diesel and biodiesel, by several governmental agencies. ...
Estudo de reações sólido/líquido e sólido/gás em altas temperaturas: o caso das reações do PbSO4EPbO no processo pirometalúrgico de reciclagem de Pb a partir de baterias chumbo-ácido
(Universidade Federal de São Carlos, 2012-02-10)
This report presents a study on there reactions and transformations occurring at high temperatures with the two main constituents of scrap lead-acid batteries (Pb/H2SO4) oxide and lead sulphate (PbSO4 and PbO). It was ...
Titanatos de alcalinos terrosos : a ordem associada à desordem
(Universidade Federal de São Carlos, 2010-02-26)
The microwave-assisted hydrothermal method was implemented in the synthesis of alkaline earth titanates under ABO3 stoichiometric known as perovskites, being efficient and innovative. For that, OH- groups played an important ...
Avaliação e caracterização da borracha natural de diferentes clones de seringueira cultivados nos estados de Mato Grosso e Bahia
(Universidade Federal de São Carlos, 2010-03-02)
Natural rubber (NR) is a basic raw material used in the manufacture of a wide range of rubber goods. Usually both quality and productivity levels of Brazilian NR are lower than the imported NR. This is due to a lack of ...