Navegação Engenharias por Autor "Cardozo, Nilo Sérgio Medeiros"
Resultados 1-12 de 12
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Analysis of equations of state for polymers
(2015) [Artigo de periódico]In the literature there are several studies comparing the accuracy of various models in describing the PvT behavior of polymers. However, most of these studies do not provide information about the quality of the estimated ... -
Catalisadores metalogênicos suportados para a produção de poliolefinas : revisão das estratégias de imobilização
(2011) [Artigo de periódico]The inadequacy of strategies used for the heterogeneization of metallocene catalysts is pointed out as one of the main causes of the lack of industrial employability of such polymerization catalysts. The main problems are ... -
Formulation and characterization of poloxamer 407® : thermoreversible gel containing polymeric microparticles and hyaluronic acid
(2013) [Artigo de periódico]The influence of the composition and preparation method on the sol–gel transition temperature (Tsol–gel) and rheological response of poloxamer-based formulations was determined. Manual and more complex mechanical stirring ... -
High-order finite volume method for solving viscoelastic fluid flows
(2008) [Artigo de periódico]Computational Fluid Dynamics (CFD) is widely used by polymer processing industries in order to evaluate polymeric fluid flows. A successful computational code must provide reliable predictions (modeling) in a fast and ... -
Human dental pulp stem cell adhesion and detachment in polycaprolactone electrospun scaffolds under direct perfusion
(2018) [Artigo de periódico]Cell adhesion in three-dimensional scaffolds plays a key role in tissue development. However, stem cell behavior in electrospun scaffolds under perfusion is not fully understood. Thus, an investigation was made on the ... -
Uma nova metodologia para a simulação de escoamentos de fluidos viscoelásticos
(2005) [Artigo de periódico]É proposta neste trabalho uma nova metodologia para resolução das equações governantes de fluidos viscoelásticos, baseada no método dos volumes finitos, usando o arranjo co-localizado para as variáveis e malhas estruturadas. ... -
Parameter estimation for LLDPE gas-phase reactor models
(2007) [Artigo de periódico]Product development and advanced control applications require models with good predictive capability. However, in some cases it is not possible to obtain good quality phenomenological models due to the lack of data or the ... -
Performance of predictive models in phase equilibria of complex associating systems : PC-Saft and CEoS/GE
(2013) [Artigo de periódico]Cubic equations of state combined with excess Gibbs energy predictive models (like UNIFAC) and equations of state based on applied statistical mechanics are among the main alternatives for phase equilibria prediction ... -
Polysaccharides of red alga Gracilaria intermedia : structure, antioxidant activity and rheological behavior
(2018) [Artigo de periódico]A sulfated polysaccharide fraction from the red alga Gracilaria intermedia (PLS) was obtained by papain digestion (60 °C, 30 min). The extract was subjected to colorimetry and turbidimetry analysis, Fourier transform ... -
Thermal treatment of açaí (Euterpe oleracea) fiber for composite reinforcement
(2020) [Artigo de periódico]This work investigated the effect of thermal treatment in an autoclave on the chemical, physical, and morphological properties of lignocellulosic fibers from açaí (Euterpe oleracea Mart), and the behavior of this treated ... -
The use of gauss-hermite quadrature in the determination of the molecular weight distribution of linear polymers by rheometry
(2013) [Artigo de periódico]The molecular weight distribution (MWD) and its parameters are of the fundamental importance in the characterization of polymers. Therefore, the development of techniques for faster MWD determination is a relevant issue. ... -
Utilização da técnica de birrefringência em reômetro multipasse para a diferenciação de grades de poliestireno cristal
(2014) [Artigo de periódico]O entendimento de como as propriedades reológicas afetam o comportamento dos polímeros nas operações de processamento, por meio de diferentes técnicas experimentais, é de fundamental importância para ser possível prever e ...
