Resumo: O desenvolvimento de tecidos inteligentes, que atuam ativamente às situações as quais são submetidos, tem sido alvo de pesquisas em diversas áreas industriais. Dentre esses materiais, destacam-se os têxteis contendo materiais de mudança de fase (PCMs, do inglês Phase Change Materials), que atuam na regulação térmica por meio da Leia mais…
Abstracts: This study presents a reliability analysis of a 5-metre-long railway steel bridge, focusing on the perfor-mance of a critical beam. The bridge comprises two I-shaped beams, four diagonal bracings fabricated from angle sections, and two U-shaped cross beams. The applied loads include dead loads, such as the structure’s weight, Leia mais…
Abstract: Studying concrete’s interaction with moisture conditions is crucial for undestanding material degradation and corrosion of embedded steel reinfoircement in structures exposed to atmospheric environments. This work present a comparative assessment of two non-destructive testing (NDT) techniques for moisture evalution: internal moisture measurement with the Moist 210 B (HF SENSOR) Leia mais…
Abstract: Nd-Fe-B magnets are a critical material for the green energy transition. However, price volatility makes the supply chain fragile, which makes the recycling process an alternative to reduce dependence on raw materials. Unfortunately, the recycling process introduces oxygen into the magnet, getting worse magnetic properties. Thus, this article studies Leia mais…
Abstract: Here, we review the key findings on the genetic characterisation of Berenice strains of Trypanosoma cruzi isolated from a 2-year-old child, Berenice, the first patient with Chagas disease described in the literature in 1909. Be-62 and Be-78 strains were isolated from Berenice when she was 55 and 71 years Leia mais…
Resumo: A discrição acústica é crucial para a sobrevivência e eficácia operacional de submarinos. Entre os diversos tipos de ruído emitidos, o ruído hidrodinâmico relaciona-se diretamente à operação do propulsor, à forma do casco e aos seus apêndices. Este estudo propõe um método numérico para avaliar a emissão de ruído Leia mais…
Abstract: Leveraging the well-established properties of gold nanoparticle (AuNP)-DNA conjugates, this research explored a novel methodology for controlled enzymatic DNA synthesis using gold nanoparticle (AuNP)-DNA conjugates as a solid platform. To this end, Hybrid Nanoparticles (HNPs) were meticulously engineered through the functionalization of AuNPs with rationally designed DNA initiator molecules. Leia mais…
Abstract: Monitoring concrete structures is crucial for assessing the corrosion risk of steel reinforcement and optimizing maintenance strategies. This study evaluated the MnO₂/NaOH, Ag/AgCl, and Ti/MMO permanent, embeddable reference electrodes, which are rarely known or used in Brazil for corrosion monitoring. The electrodes underwent assessment tests, immersion tests in solutions Leia mais…
Abstract: This paper introduces a novel methodology for addressing the complex behavior of axial pipe-soil interaction in soft marine clays, considering drained, undrained and partially drained soil responses. The results of the proposed methodology are compared with those obtained using the traditional alpha approach for determining the axial friction factor. Leia mais…
Abstract: Monitoring is an element of landslide early warning systems. Fukuzono’s method, based on displacement and velocity monitoring, is one of the most popular methods for slope time of failure (TOF) prediction. This critical literature review aimed to systematically analyze the state-of-the-art accelerometers used for slope monitoring and TOF prediction. Leia mais…
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