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
doaj +1 more source
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
doaj +1 more source
Quality of High-protein Diet Bar Plus Chia (Salvia hispanica L.) Grain Evaluated Sensorially by Untrained Tasters [PDF]
, 2018 The objective of this study was to develop, analyze composition and evaluate the microbiological and sensory characteristics of high-protein diet bars (PB) with the addition of chia grain (Salvia hispanica L.), partially replacing isolated soy protein ...
Cavenaghi, Daniela Fernanda Lima de Carvalho +6 more
core +5 more sources
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
doaj +1 more source
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
doaj +1 more source
Improvement in the Adsorption of Anionic and Cationic Dyes From Aqueous Solutions: A Comparative Study Using Aluminium Pillared Clays and Activated Carbon [PDF]
, 2013 The aim of this work was to evaluate the adsorption properties of anionic dye Reactive Black 5 (RB5) and cationic dye Methylene Blue (MB) from salted aqueous solution using natural clay, aluminum pillared clay (Al-PILC), and activated carbon.
Aguiar, J. E. +7 more
core +2 more sources
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
doaj +1 more source
Cooperative WebLab in chemical engineering between France and Brazil: Validation of the methodology [PDF]
, 2012 A WebLab is an experiment operated remotely via Internet. Besides the strictly technical aspects of such an experiment, which may contribute to the learning of Chemical Engineering fundamentals, there is also important feedback when teams of students of ...
Antonio J.G. Cruz +13 more
core +3 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
doaj +1 more source
Physicochemical characteristics of organic honey samples of africanized honeybees from Paraná River islands. [PDF]
, 2011 This research was carried out to evaluate the physicochemical composition of organic honey in Paraná River islands, in Porto Brasílio, State of Paraná. Honey was harvested directly from super of the colonies in three apiaries spread in the Floresta and ...
Alves, Eloi Machado +6 more
core +3 more sources