Resumo: As revisões bibliográficas sistemáticas demandam elevado rigor metodológico e esforço de execução. Este artigo propõe uma metodologia que integra ferramentas digitais como Parsifal, Bibliometrix e GPT-4, aliadas a scripts em Python e R para automação e rastreabilidade das revisões bibliográficas. Uma aplicação do método realizada possibilitou a redução de Leia mais…
Abstract: This study explores classical machine learning methods for fault detection in two seismic volumes: F3 (Netherlands) and Thebe (Australia). For each volume, we created a training dataset by extracting features through seismic attribute computation and a sliding window method. We compared multiple classifiers through a 10-fold cross-validation, with the Leia mais…
Resumo: Este trabalho investiga o uso do modelo SAM 2 da Meta AI para segmentação de dados sísmicos, explorando diferentes combinações de atributos como entrada. Foram testadas quatro combinações de atributos além da amplitude pura, sendo que o melhor desempenho foi obtido para combinações de atributos que geraram imagens visualmente Leia mais…
Abstract: This study aims to evaluate the adhesive forces of calcium carbonate encrusted on the metallic surface of AISI 304 stainless steel through linear scratch tribological tests. The formation of mineral scale on metallic surfaces is a relevant phenomenon in several industrial sectors, such as the oil industry, heat exchanger Leia mais…
Abstract: Flat plate solar collectors (FPSC) should meet durability requirements which are related to the equipment ability to resist aging and damage occurring during lifetime. To face durability issues, especially concerning to freezing and corrosion resistance, Brazilian flat plate solar thermal collector manufactures are embracing product lines with stainless-steel (SS) Leia mais…
Abstract: Optical methods of vibration evaluation comprise a very powerful tool in areas such as quality control and predictive maintenance. We propose and experimentally demonstrate a technique for out-of-plane, whole-field vibration analysis by studying the visibility decrease of projected structured light on vibrating surfaces. The light pattern formed by straight, Leia mais…
Abstract: The characterization of gaseous mixtures is an increasingly important issue in the fields of fuel analysis and aerosol research. Analyses by refractometry combined with refractive mixing rules are also powerful tools in this area. In this work a setup comprised by a six-laser interferometer and a vacuum system was Leia mais…
Resumo: O presente trabalho consta das considerações sobre os parâmetros físico-químicos da água na bacia de drenagem do Reservatório Paiva Castro, rio Juqueri, Mairiporã, SP, utilizados para o monitoramento e acompanhamento da evolução da qualidade da água na Bacia hidrográfica do Reservatório Paiva Castro, com base na resolução CONAMA nº Leia mais…
Abstract: This paper presents a thermodynamic and kinetic model for simulating calcium carbonate scaling in a tubularreactor under varying saline composition, temperature, and flow rate. Simulation results are compared withexperimental data obtained from a tubular reactor developed by the IPT and Petrobras. A mathematicalmodel based on thermodynamics and crystallization kinetics Leia mais…
Abstract: When oil spills occur, a fraction of the oil may get trapped in soil pores or can migrate through unsaturated and saturated zones. Dense non-aqueous phase liquids (DNAPL), such as creosote, move through aquifers until complete depletion or encountering an impermeable layer. The optical image profiler (OIP) is a Leia mais…
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