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Identificação dos componentes do óleo essencial de laranja (Citrus sinensis L. Osbeck) e proposição de procedimentos industriais para a obtenção de produtos diferenciados
(Universidade Federal de São Carlos, 2011-10-21)
Brazilian exports of orange essential oil are responsible for moving approximately seventy-four million dollars, representing a significant portion of Brazilian business, and deserve the attention from the companies involved ...
Ensino e aprendizagem significativa do conceito de ligação química por meio de mapas conceituais
(Universidade Federal de São Carlos, 2011-02-04)
As a consequence of student difficulties related to concepts of greater abstraction of Chemistry, the concept of Meaningful Learning according to the theory of Ausubel was used in this work. From it, the twodimensional ...
Desenvolvimento de um reator fotoquímico microcontrolado, utilizando diodos emissores de luz (LEDs) como fonte de excitação luminosa
(Universidade Federal de São Carlos, 2011-02-11)
Aiming to contribute to the technological development of our country and meet the domestic demand for photochemical reactors, we have considered the possibility of developing a national product. The development of this ...
Compreendendo os fenômenos nucleares, suas aplicações e implicações através de uma atividade lúdica
(Universidade Federal de São Carlos, 2010-10-01)
It has been shown that students of latest high school year do not know the meaning of the symbols of radioactivity, and sometimes they mix up mentally with different sources of radioactivity or types of radiation. Students ...
Estudo sobre o hidróxido de potássio no processo de produção industrial de poliol poliéter
(Universidade Federal de São Carlos, 2010-11-26)
Metallic ions may interact with polyether polyols giving macromolecular complexes. From this approach, it was investigated the interaction of cationic potassium with polyether polyols by means of several techniques in order ...
Argumentação no ensino de Química: textos de divulgação científica desencadeando debates
(Universidade Federal de São Carlos, 2011-02-02)
A large body of science education literature suggests that argumentation plays a central role in science and should therefore maintain the same centrality in science education. However, opportunities for students to engage ...
Hematita: um novo método de síntese para a indústria
(Universidade Federal de São Carlos, 2011-08-04)
The motivation in studying the properties of iron oxides was due to difficulty in obtaining colored pencils in shades of brown, with good coverage. To carry out this work we used pigments for industrial use Icra provided ...
Estudo do comportamento reocinético, propriedades de temperatura de transição vitrea e viscosidade de sistemas de resinas epoxi
(Universidade Federal de São Carlos, 2010-08-20)
In this work, we have developed a study of the impact of two variables (Water and Monohydroyized Epoxy Resin) to Epoxy resin raw material in the behavior of the reactivity and viscosity of a " Epoxy System (Parts A - Resin ...
Obtenção de nanopartículas coloidais de trifluoreto de itérbio
(Universidade Federal de São Carlos, 2011-02-16)
Radiopaque dental composites are materials that have attracted great scientific and technological interest due to their different optical and mechanical properties when compared to polymer-based dental materials. In this ...
Avaliação crítica do processo de implementação e amadurecimento de um sistema de gestão da qualidade integrado BPL (Boas Práticas de Laboratório) e ISO/IEC 17025
(Universidade Federal de São Carlos, 2013-06-07)
The tests and/or study laboratories have sought the implementation of Quality Management Systems (QMS) in order to obtain a differential, which is the greater reliability and acceptance of their results. The two main systems ...