Transmitance
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Avaliação da integridade superficial do polimetilmetacrilato (PMMA) no torneamento com ferramenta de diamante / Evaluation of the surface integrity of polymethymethacrylate (PMMA) in diamond turning tool
O torneamento com ferramenta de diamante é um processo de fabricação usado para a produção de componentes ópticos com alta precisão de forma e qualidade óptica final. O crescente uso de materiais poliméricos na industria, particularmente em equipamentos de precisão eletrônica e óptica tem exigido o estudo e entendimento de suas características e
Publicado em: 2006
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2. Avaliação da estabilidade de agua de coco (Cocus nucifera) em garrafas de polietileno tereftalato (PET) estocadas congelada e refrigerada
This research evaluated the stability and estimated the shelf-life of the coconut water marketed in plastic bottles of polyethylene terephthalate (PET), frozen and refrigerated. It evaluated the effect of the storage temperature over the quality and the shelf life of the coconut water. The evaluation of the stability was done by microbiological, physical-che
Publicado em: 2002
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3. Band gap variation of CdS thin films / Variação da energia do gap em filmes finos de CdS
Cadmium sulphide have much technological attraction for their application on heterojunction optoelectronic devices, particularly solar cells. In this work we study thin films ofthis material, prepared by chemical bath deposition (CBD) process. Morphologic, structural and stoichiometric data are correlated to the optical properties, namely the energy gap (Eg)
Publicado em: 1996
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4. Sintese, propriedades e aplicações do poli-pirrol dopado com anions anfifilicos
Research on intrinsically conducting polymers has grown in the last years due their potential technological applications. They can be reversively driven to their conductive or insulator states by a redox process. This involves the introduction or ions into the material in order to maintain the charge eletroneutrality and, generally, occurs during polymer syn
Publicado em: 1992