Abstract: The use of lightweight structural elements across various industries has seen significant progress due to the adoption of carbon fiber-reinforced polymers (CFRPs). Among these, polyamide 6 (PA6) stands out as a prevalent thermoplastic polymer, renowned for its exceptional processability, Leia mais…
Abstract: Open dumping is one of the most common solid waste disposal methods in developing countries. As they lack planning and basic environmental protection engineering measures, dumpsites represent environmental and health risks that should be investigated. However, several dumpsites are Leia mais…
Abstract: The accident involving oil spill that occurred on the Brazilian coast in 2019 reached 2,880 km in extension, and more than 200 tons of oily material was removed from coastal environments in the northeast of the country in about Leia mais…
Abstract: The quantification of rare earth elements in (Nd-Pr)-FeB alloys used in the production of super magnets is required to ensure the quality of the raw material and a final product with suitable properties. Laser-induced breakdown spectroscopy is attractive to Leia mais…
Abstract: Most of the whole-field optical methods for vibration measurement have low sensitivity when the points of the studied surface vibrate with the same amplitude. Those techniques also usually require complex and/or expensive solutions which are difficult to implement in Leia mais…
Abstract: Phase change materials (PCMs) such as paraffins are widely applied to store thermal energy. PCMs displaying high thermal conductivities are desirable because they crystallize or melt rapidly when the temperature in the environment changes, absorbing or releasing latent heat Leia mais…
Abstract: This study delves into the formulation of an advancedmicrostructure in medium-carbon high silicon spring steel through a series of engineered heat treatments. The microstructure, composed of lower bainite, proeutectoid ferrite, and pearlite, exhibits superior mechanical properties compared to traditional Leia mais…
Resumo: A integridade estrutural é parte vital para o bom andamento de qualquer organização, especialmente quando os riscos operacionais e ocupacionais envolvidos nas operações estão presentes no cotidiano. Seja em plataformas de petróleo, em malhas ferroviárias ou em torres de Leia mais…
Resumo: Este artigo apresenta um panorama geral do sistema de telecomunicações por fibra óptica em uma perspectiva dos cuidados metrológicos envolvidos em sua operação. Referência: FERREIRA Junior, Antônio Francisco Gentil; TORRES, Fabrício Gonçalves. Aspectos metrológicos nos sistemas de comunicação óptica. Leia mais…
Resumo: Atualmente, como alternativa de reforço de elementos de concreto armado, técnicas baseadas no uso de materiais compósitos, tal como a EBR (Externally Bonded Reinforcement, na língua inglesa), aplicada diretamente no substrato de concreto do elemento a ser reforçado com Leia mais…
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