Results 131 to 140 of about 519,025 (217)
Polymer Composites, EarlyView.Thermal, microstructural, and mechanical characterization of 3D‐printed PLA composite parts. ABSTRACT To address plastic waste and agricultural residue underutilization, this study evaluates the thermal (DSC and FTIR), microstructural (SEM), and mechanical behavior of polylactic acid (PLA) reinforced with flax fibers and olive pit particles, processed ...
P. N. B. Reis +6 more
wiley +1 more source
Aggregation‐induced enhanced emission for quantification of recycled content in automotive plastics
Polymer International, EarlyView.Quantifying recycled content in four automotive plastics using aggregation‐induced enhanced emission showed that performance was highly dependent on both polymer and additive chemistries. Abstract The use of plastics in the automotive industry is increasing due to their versatility, light weight and affordability.
Saleh S Soomro +2 more
wiley +1 more source
Perspectivas do desenvolvimento regional
, 2011 Vencida uma etapa no processo de desenvolvimento, aquela proporcionada pela substituição acelerada de importação, vê-se a economia brasileira a braços com urgentes problemas de retomada do ritmo de crescimento.
openaire +1 more source
Ciência, Tecnologia e Desenvolvimento Regional
, 2007 Observa-se, ao longo das últimas décadas, um permanente debate institucional sobre a questão regional e seu tratamento no segmento de Ciência e Tecnologia. Atualmente, deve-se ressaltar que, além do conhecimento codificado, o conhecimento tácito, que está intimemente relacionado a peculiaridades locais, estrutura vantagens competitivas fundamentais ...
Sicsú, Abraham B. +1 more
openaire +1 more source
Extruder‐based 3D printing of eco‐friendly polymers
Polymer International, EarlyView.Eco‐friendly polymers, such as biodegradable and recycled materials, offer significant potential for the production of high‐quality 3D‐printed components, provided that their properties and characteristics meet the requirements of extruder‐based 3D printing.
Rui Zhang +7 more
wiley +1 more source
Polymer International, EarlyView.Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco +11 more
wiley +1 more source
Quantifying Dual‐Color Photopolymerization in Xolography via Raman Spectroscopy
Journal of Polymer Science, EarlyView.A dual‐wavelength Raman spectroscopy workflow is presented for the quantitative assessment of dual‐color photoinitiators. Contrast and efficiency parameters are extracted from in situ curing curves and spatial Raman mapping is used to find inhomogeneities in printed objects.
Nele Lange +10 more
wiley +1 more source
Fatos recentes do desenvolvimento regional no Brasil [PDF]
, 2015 Barufi, Ana Maria Bonomi +6 more
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Demographic Sustainability and Regional Development: The Cases of Alto Minho and Alto Alentejo [PDF]
Demographic Sustainability and Regional Development: The Cases of Alto Minho and Alto Alentejo Maria Nazaré Oliveira Roca, Vasco Silva, Susana Caldinhas Centro de Estudos de Geografia e Planeamento Regional, Universidade Nova de Lisboa The paper is ...
Maria de Nazaré Roca +2 more
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