Classificação de sinais cerebrais sob a ótica dos Large Language Models: aplicação na reabilitação clínica

Abstract: The recent advancements in natural language processing (NLP) have introduced novel artificial intelligence models for data classification, extending their scope to analyzing brain signals acquired via electroencephalogram (EEG). Among these developments, the transformer architecture, which has become available in recent years, has provided researchers with a powerful model to Leia mais…

Technical debt management in agile context: a new framework and case study in a large financial institution

Abstract: Agile approaches and practices have become pervasive in the software industry. The principles of this methodology consistently prioritize technical excellence and the advancement of sustainable development, leading to the creation of high-quality code that aims to minimize Technical Debt (TD). However, the agile methodology does not guarantee the absence Leia mais…

Fatigue resistance of carbono fiber/polyphenylene sulfide composites engineered for automotive use

Abstract: This study comprehensively investigates a carbon fiber-reinforced polyphenylene sulfide (CF/PPS) composite through tensile, fatigue, interlaminar shear strength (ILSS), dynamic mechanical tests (DMA), and also fractographic analysis. Prepared via hot compression molding, the CF/PPS composites exhibit a consistent quality. Tensile tests show an elastic modulus of 37.2 ± 0.2 GPa Leia mais…

Mechanical performance of carbono fiber / polyamide 6: comparative study between conditioning in distilled water with heating and saline solution

Abstarct: It is particularly important to investigate the mechanical performance of carbon fiber (CF) reinforced polyamide 6 (PA6) composites used for automotive and aerospace applications, where diffused moisture of the environment may potentially weaken the material over time. In this work, CF/PA6 composites were subjected to two different types of Leia mais…

Evaluation methods of out-of-autoclave apoxy prepreg working life used in aerospace application

Abstract: Prepregs are highly dependent on the resin, its chemical composition, and physical properties. Resin is the perishable part of prepreg materials and usually requires controlled storage, otherwise, its processability and properties may be affected. Oven curing prepregs are recognized to have longer life out of the freezer than those Leia mais…

Monitoring physicochemical parameters in the bioremediation of soil contaminated by petroleum hydrocarbons using poultry manure

Abstract: Soil contamination and its impact on human health are growing concerns worldwide due to anthropogenic activities, as soil plays a central role in the absorption of pollutants, including petroleum hydrocarbons. Conventional soil remediation techniques can have signifcant environmental impacts. Sustainable approaches are therefore needed, and bioremediation has emerged as Leia mais…

Por que utilizar serviço de calibração de um laboratório acreditado?

Resumo: Laboratórios de calibração acreditados são aqueles que foram e são avaliados periodicamente para o atendimento integral à norma ABNT NBR ISO/IEC 17025. Um serviço realizado por um laboratório acreditado possui reconhecimento regional e internacional com base em acordos de reconhecimento mútuo. Considerando que a tarefa de buscar o laboratório Leia mais…

Fabricação de medicamentos estéreis: diretrizes para controle de contaminação

Resumo: Este artigo tem como objetivo descrever brevemente as diretrizes de Boas Práticas de Fabricação (BPF) para medicamentos estéreis no Brasil (Instrução Normativa IN 35/2019), e fazer uma breve explanação comparada com as alterações já definidas nas diretrizes do EU GMP Anexo 1 da Comissão Europeia e PIC/s. De acordo Leia mais…

Ensaios sísmicos MASW como método de investigação complementar do solo: o caso de Edifício Copan em São Paulo

Resumo: No presente artigo, são apresentados os resultados dos ensaios sísmicos de Multichannel Analysis of Surface Waves (MASW) realizados no subsolo do Edifício Copan, ícone arqui tetônico e marco referencial da arquitetura paulistana. O objetivo do ensaio foi avaliar a rigidez dos materiais em subsuperfície ao longo do terreno de Leia mais…

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