Results 11 to 20 of about 2,515 (114)
Tratamento para obtenção de TaC em superfície de grafite. Parte II: eletrodeposição em meio de fluoretos fundidos [PDF]
Cerâmica, 2001 Este trabalho apresenta a técnica de eletrodeposição de tântalo em meio de fluoretos fundidos, seguida de tratamento térmico para formação do carbeto de tântalo, como uma alternativa de pré-tratamento para tubos de grafite utilizados em determinações ...
H. J. Izário Fº +4 more
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Pesquisa Florestal Brasileira, 2023 O pinhão é um alimento de grande importância econômica e gastronômica no Brasil, mas com dificuldade de conservação pós-colheita. No presente estudo avaliou-se as características dos pinhões armazenados no ambiente doméstico, utilizando-se embalagens de
Fernanda Janaína Oliveira Gomes da Costa +4 more
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Áreas do conhecimento em que as universidades do Sul do Brasil possuem patentes concedidas
Em Questão, 2019 O estudo tem como objetivo geral analisar as patentes concedidas nas universidades públicas do Sul do Brasil no que se refere às áreas do conhecimento – de onde provêm, e em quais áreas elas são classificadas de acordo com a Classificação Internacional ...
Adriana Stefani Cativelli +2 more
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Influence of temperature on thermodynamics for binary mixtures of short aliphatic protic ionic liquids [PDF]
Journal of the Serbian Chemical Society, 2017 Two binary mixtures of protic ionic liquids comprising formate, acetate and propionate anions and 2-hydroxyethyl ammonium, bis(2-hydroxyethyl) ammonium and tris(2-hydroxyethyl) ammonium cations have been studied in terms of volumetric and acoustic ...
Andrade Rebecca S. +2 more
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Synthesis of polyacrylamide in aqueous solution: solubility
Orbital: The Electronic Journal of Chemistry, 2012 The synthesis of aqueous polyacrylamide solution was evaluated for its solubility in water. The reactions were performed using the acrylamide monomer, solvent and initiator (K2S2O8), with the system under magnetic stirring and heating (60°C) for 4 hours.
Daniela T. Valente, Alcino P. de Aguiar
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Study of Solvent Effect on PVDF-HFP Gel Polymer Electrolyte Containing Ionic Liquid Pyr<sub>1,4</sub>TFSI for Lithium Batteries Application. [PDF]
Macromol Rapid CommunThe study develops gel polymer electrolytes using PVDF‐HFP copolymer, lithium salt, and an ionic liquid, evaluates how different solvents affect crystallinity, thermal stability, microstructure, and conductivity, observes a crystallinity decrease from 31% to 11%, identifies solvent‐dependent membrane morphologies, and reports the highest conductivity ...
Zanotto PV, Fernandes EG, Martins VL.
europepmc +2 more sources
Electrochemistry Communications, 2023 In this study, we report the enhanced electrochemical performance of a MnO2 electrode modified with a pH-sensitive co-polymer, activated at acidic pH, and designed to counteract MnO2 degradation in aqueous aqueous pseudocapacitors.
A.C. Alves +6 more
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Grasas y Aceites, 2013 The extraction of oil from passion fruit seeds using supercritical CO2 was studied. Experimental data were obtained for extraction conducted at 15, 20 and 25 MPa; at temperatures of 40 and 50 °C with CO2 flow rates of 1.5 and 3.0 mL min–1. An increase in
R. Cardoso de Oliveira +5 more
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Adsorption of CO2, N2, CH4, and their mixtures on silicalite: A critical evaluation of force fields [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2020 The use of molecular simulation has been growing in the field of engineering, fueled not just by the advances in computational power but also on the availability of reliable software.
Arvelos Sarah +3 more
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AMB Express, 2019 Iron deficiency is one of the main causes of chlorosis in plants, which leads to losses in field crops quality and yield. The use of synthetic chelates to prevent or correct iron-deficiency is not satisfactory mainly due to their poor biodegradability ...
Carlos M. H. Ferreira +4 more
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