Investigation of concrete moisture using no-destructive methods across different compositions and exposure conditions

Abstracts: 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…

Investigation of concrete moisture using no-destructive methods across different compositions and exposure conditions

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…

Benefits of incorporating Dy-Cu alloy via the grain boundary diffision process in recycled magnets

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…

Beyond the first case of Chagas diasease: the Berenice strain as a model for understanding long-term Trypanosoma cruzi infection

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…

Evolução da área construída em terrenos de alta suscetibilidade a movimentos gravitacionais de massa em Santo André, SP = Evolution of built area in highly susceptible land to gravitational mass movements in Santo André, SP

Resumo: O objetivo de Desenvolvimento Sustentável 13 destaca a urgência de ações para mitigar os impactos das mudanças climáticas. Da mesma forma, o Marco de Sendai para a Redução do Risco de Desastres enfatiza a necessidade de compreender os riscos em todas as suas dimensões, considerando exposição, vulnerabilidade e características Leia mais…

Método numérico para a estimativa de ruído hidrodinâmico aplicado a umpropulsor de submarino = Numerical method for the assessment of hydrodynamic noise applieda to a submarine propeller

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…

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