36 resultados para Umberto Eco
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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This article describes a new approach of recycling the leather waste (shavings) using it as filler in natural rubber foams composites. The foams were prepared using different amounts of leather waste (0-60 parts per hundred of rubber) and submitted to morphological (SEM microscopy) and mechanical analyses (cyclic stress-strain compression). The increase of leather shavings on the composite causes an increase of viscosity in the mixture, which reflects in the foaming process. This results in smaller and fairly uniform cells. Furthermore, expanded rubber has the biggest cell size, with more than 70% of cell with 1000 mu m, while the composite with the higher concentration of leather has around 80% of total number of cells with 100-400 mu m. The mechanical parameters were found to depend on the leather dust concentration. Moreover, the stiffness rises with the increase of leather shavings; consequently, the compression force for expanded rubber was 0.126 MPa as well as the composite with higher concentration of leather was 7.55 MPa. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41636.
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Ciências Ambientais - Sorocaba
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This study was conducted in partnership with the Extension Project in Education Environmentally Semente Viva and it is an assessment of the environmental education methodology applied by the Group in 2014, at the Municipal School Sylvio de Araújo, in Rio Claro- SP. The implemented methodology was named Programa Eco Escolas- Semente Viva and it was based on the use of certain bases of the Eco-Schools program, created by the FEE (Foundation for Environmental Education), with some adjustments in accordance with the goals of the Group. The study followed the participatory research method, and the data collection gave up through participant observation, literature and documentary. The chapters present the description and analysis of the events that represent the implementation process of the Programa Eco Escolas- Semente Viva. The meetings with the community and environmental education activities with children from 1st to 4th year are described in detail, and is given regarding the analysis of situations, from the point of view of one of the members of the Semente Viva Group
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Purpose – The purpose of this paper is to show results from the relationship between green/environmental training and the development of three projects of low-carbon eco-innovations in top Brazilian companies. Design/methodology/approach – This study includes three organizational projects for low-carbon eco-innovations in products (A, B and C) with the objective of reducing their impact on GHG emissions, the so-called low-carbon products. Data were collected from several sources of evidence, including in-depth interviews, document analyses and direct observations. Findings – The authors verified that the environmental training interface for mitigating climate change is relevant for the systematic development of low-carbon products in most of the cases studied. Originality/value – Low-carbon eco-innovations are a trend in the corporate world; however, there is not enough literature and practical evidence on this subject. Thus, this paper adds new evidence to the literature.