Aproximações entre as comunidades científica, amadora e escolar: estudando as potencialidades de observatórios astronômicos para a educação em astronomia

This article considers some potential of activities developed in non-formal education in astronomy, like astronomical observatories and other related establishments. This kind of research is less explored in our country. We present, in this text, a model to study possible relations among these kinds of communities: the scientific, the amateur and the professional, applicable in astronomical observatories, in a motion against the local and punctual activities dispersion and pulverization of these establishments, and against the use of common sense to develop their activities, aiming the advancement of the astronomy education and its national research.

Possibilidades e limitações da prática do professor na experiência com a temática energia e desenvolvimento humano no ensino de ciências

Reflections on the Movement STSE, in basic education, have pointed to the introduction of discussions involving the socio-scientific issues, as a way of organization and development of forming processes in science classes. In this sense, the research that we developed sought to bring to physics classes of basic education, the discussions surrounding the relationship between science, technology, society and environment issues related to production and access to electricity and human development. In order to interpret formative aspects of this approach was achieved through a short course. Thus, we discuss in this paper, the discourse of students and a professor of physics who participated in this short course. Therefore, we seek in discourse analysis, reflection on this practice, which has limitations such as lack of recognition of this type of training status by the students as well as possibilities represented by the establishment of training spaces that contribute to the discussion of socio-scientific issues.

Estratégia de controle multifuncional para sistemas fotovoltaicos de geração de energia elétrica

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Balanço de energia de fluxo de CO2: cerrado da floresta estadual de Assis

Based on climatological data and energy flow, this paper analyzes the behavior observed in microclimatic an important remnant of cerrado in the São Paulo State. The seasonal climate is well marked, in the study area, with two climatic periods (one dry and one wet). The vegetation presents physiology as a function of water availability and the local thermal conditions and can be seen marked changes in the landscape due to the more or less presence of solar radiation. It’s important to understand the ecosystems behave in the context of global change. It has gained the attention of many researchers in the world.

Memórias da educação em astronomia no Brasil: recortes a partir das falas de pesquisadores entrevistados sobre o tema

This paper presents a historical retrospective concerning data from a research in Astronomy Education in Brazil, after 1973. It was organized on the basis of the speech analysis of national researchers considered references in this field by their peers. Furthermore, it was elaborated on the basis of other studies from the areas of Science Education, Physics and Astronomy. This historical overview was developed in order to facilitate understanding of the contexts in which the interviewed researchers have developed professionally. Moreover, we attempted to recover the memory of the growing field of research in Astronomy Education in the country. We believe that the history presented can help those trying to understand the past in an attempt to resolve current and future demands.

Justificativas para o ensino de Astronomia: o que dizem os pesquisadores brasileiros?

We present here a qualitative analysis of a sample of papers published in Brazilian science education journals, which expresses researchers discourses related to Astronomy Education. Within this analytical universe, we sought for discursive excerpts about their justifications for the teaching of this subject, which made the basis for the production of a collective discourse, which identity is socially represented by the researchers authors set. Setting up articulations with discourse analysis, the procedures of the collective subject discourse show to be an important methodological tool to answer to the central question of this study: what do the Brazilian researchers assert as justifications for teaching Astronomy? In other words: why teach Astronomy? Outcomes point to the retaking of reflections about the importance of matters like as Astronomy in formal education, catalyzing teachers work innovative articulations.

Análise da viabilidade do uso de biogás gerado a partir de dejetos bovinos em microturbinas para fins de geração, cogeração e trigeração de energia

The use of digesters has become an important alternative for the proper disposal of organic agricultural wastes, serving as a solution to some environmental and health problems. Furthermore, the process of digestion provides commercially valuable by products such as biogas and bio fertilizer. The generation of biogas from agricultural waste, and its use in power generation systems has aroused great interest in rural areas because it enables supply in whole or in large part the energy demand of ownership by reducing production costs. The advent of technology has brought new forms of energy conversion of biogas, as the use of micro turbines specifies to be fuelled with biogas derived from the decomposition of organic matter in digesters, since it has a low level of methane in its composition, and high degree of impurities such as hydrogen sulphide, which are harmful to equipment and reduce the calorific value of biogas. The use of micro turbines behind other advantages like low emissions, great fuel flexibility and low maintenance. This paper presents an analysis of the feasibility of using biogas generated from cattle manure in micro turbines to generate electricity. Behind also an assessment of the energy potential that each animal has on various uses of biogas, and forms of energy recovery from the exhaust gases of the micro turbine. Also conducts an evaluation of the energy savings that the use of biogas aggregates properties.

Viabilidade econômica da implantação de compensadores série dinâmicos em redes de distribuição de energia elétrica

Pós-graduação em Engenharia Elétrica - FEIS

Caixa experimentoteca: uma proposta para o ensino de astronomia

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Proposta de equipamento de conexão à rede para a utilização da geração de energia solar em consumidores de pequeno e médio porte

Pós-graduação em Engenharia Mecânica - FEG

Reconfiguração de sistemas de distribuição de energia elétrica utilizando uma metodologia multipartida

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Protocolo para sinterização de zircônia odontológica por energia de micro-ondas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)