Abstract: The present treatment of water from aqueous solutions, reported from our research work, uses polyurea (PU) as a novel adsorbent. Specifically, the adsorption efficacy of PU was tested in dyes with different characteristics (Congo red (CR) and methylene blue Leia mais…
Abstract: Carbon fiber-reinforced polymers (CFRP) are extensively applied in the automotive and aeronautic industry due to several advantages that combine resistance properties with the weight reduction of components. The fiber reinforced thermoset composites are generally manufactured in components close to Leia mais…
Resumo: Em telecomunicações, cabos, conectores e adaptadores desempenham um papel crucial para o funcionamento eficiente das redes, inclusive em tecnologias sem fio como o 5G. A escolha e o uso adequado do tipo de conexão também são vitais para a Leia mais…
Abstract: This paper presents the effects of Niobium additions (1, 2 and 3%) on the wear resistance and impact properties of Hadfield steels (1.2%C and 12-18%Mn). The additions of Nb promoted a significant decrease in the mass losses, from 79 Leia mais…
Abstract: This article examines the impact of the air-fuel ratio, measured by lambda probe, and the ignition timing on the indicated efficiency of an internal combustion engine using biogas as fuel. Through analysis, it’s seen that the indicated efficiency increases Leia mais…
Abstract: This article examines the effects of charge, engine speed, ignition timing, and air-fuel ratio on the temperature of exhaust gases when using biogas as fuel. The effects of varying engine operating conditions on exhaust gas temperature are analyzed. The Leia mais…
Abstract: This article investigates the effects of intake manifold pressure and engine speed on the volumetric efficiency of an internal combustion engine. The study also examines the impact of biogas and different temperatures on volumetric efficiency. Through analysis, it’s verified Leia mais…
Abstract: The O&G production corrosion challenges are not static phenomena. Fluid characteristics change over time, resulting in systems becoming less predictive for corrosion mitigation programs. Thus, carrying out specific studies aimed at understanding the corrosion mechanisms is constant in this Leia mais…
Abstract: Occupational exposure to toxic elements can adversely affect health. The current study evaluated blood concentrations of potentially toxic elements (PTE) including As, Cd, Cr, Cu, Hg, Mn, Ni, Pb, Sb, Sn, and Zn in formal and informal workers. Additionally, Leia mais…
IPT e Petrobras desenvolveram projeto para realizar estudos de corrosão em atmosferas reais de exposição O crescimento da demanda energética, a prospecção e a exploração de petróleo e o transporte de produtos brutos e derivados (petróleo bruto, nafta, gasolina e Leia mais…
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