Results 61 to 70 of about 843 (211)

Optimization of surface finish in cylindrical external turning of SAE 1045 steel

GEPROS: Gestão da Produção, Operações e Sistemas, 2017
Currently the mechanical metal sector organizations are increasingly looking for quality and cost reduction in the development of their products. This paper elaborates on the verification of surface finish and roughness in machining techanical parts ...
Jonas Müller Hammes, Ariane Ferreira Porto Rosa, Eduardo Walker   +2 more
doaj   +1 more source

Composition and functionalities of peanut protein concentrates using ethanol as a defatted solvent and a precipitating agent

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Defatted solids (DSs) from vegetable oil extraction represent valuable feedstocks for producing protein concentrates with tailored functional properties. In the present study, using peanut protein concentrates obtained from press cakes defatted with ethanol (DSEt) or hexane (DSHx), we aimed to evaluate ethanol as a green solvent for
Paloma Jamily Cristina Magalhães, Luiza Cardoso Stumm, Paola de Cássia Franco Visioli, Keila Kazue Aracava, Rafaela Torrezan Privatti, Maria Carolina Capellini, Silvana Marina Piccoli Pugine, Daniel Gonçalves, Christianne Elisabete da Costa Rodrigues   +8 more
wiley   +1 more source

A engenharia genética [PDF]

Revista de Saúde Pública, 1991
São abordados os progressos havidos com as técnicas de engenharia genética, capazes de alterar o potencial genético de um organismo, quer pela introdução, quer pela supressão de novos genes estruturais. São mencionadas algumas das aplicações em geral e, em particular, possibilidades de uso no campo da medicina.
openaire   +2 more sources

Interplay Between Dispersion, Nucleation, and Crystallization in HDPE/Graphene Nanocomposites Processed Under Thermokinetic Conditions

Polymer Engineering &Science, EarlyView.
Thermokinetic processing controls graphene fragmentation and dispersion in HDPE, promoting heterogeneous nucleation and multistep crystallization. The balance between nucleation enhancement and chain mobility restriction governs the final crystalline structure and material performance.
Lucas J. S. Nascimento, Tainá dos S. Guatimosim, Fernanda T. G. Dias, Sandro C. Amico, Otávio Bianchi   +4 more
wiley   +1 more source

Influence of Reaction Conditions and Water on the Manufacture of C9 Aromatic Hydrocarbon Resins

Polymer Engineering &Science, EarlyView.
Schematic representation of cationic polymerization process for the statistical analysis performed on material properties, showing the correlation plot of Softening point against Yield. ABSTRACT Aromatic hydrocarbons (HRs) find many commercial applications, demanding control of the cationic reaction conditions to achieve specific resin properties.
Jéssica Bentes, Lys H. R. Mangia, Caio Henrique Pinheiro, José Capistrano Nobre de Abreu, Camila Guindani, José Carlos Pinto   +5 more
wiley   +1 more source

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

Polymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco, Emilly Cruz da Silva, Glenda Sores Gomes, Joane Almeida Alves, Amanda Vidal, Leandro Argolo, Rafaela Ribeiro, Luciana Souza, José Augusto Pires Bitencourt, Leonardo Brasil Felipe, Leonie Asfora Sarubbo, Sidnei Cerqueira dos Santos   +11 more
wiley   +1 more source

Brown–Proschan Repair Policy for Repairable Systems Using the Discrete Weibull Failure Distribution and Markov Chains

Quality and Reliability Engineering International, EarlyView.
ABSTRACT A repairable system operates under a maintenance strategy involving scheduled preventive maintenance (PM) and corrective repair actions following failures. This study develops an exact analytical methodology using Markov chains with discrete states and time to calculate the expected number of failures E[N(t)]$\mathop {\mathbb {E}}[N(t)]$ under
Danilo G. O. Valadares, Roberto C. Quinino, Linda L. Ho, Frederico R. B. Cruz   +3 more
wiley   +1 more source

Artificial intelligence for industrial wastewater treatment advancing technologies addressing challenges and enabling future applications

Discover Sustainability
The rapid adoption of AI is transforming industrial wastewater treatment by enabling real-time monitoring, predictive control, and operational optimization.
José Roberto de Matos Filho, Juliana de França Serpa, Francisco Izaias da Silva Aires, Dayana Nascimento Dari, Antônio Átila Menezes Ferreira, Carlos Galvão da Silva, Jessica Lopes da Silva, Sandyelle Alcantara Araujo, John Hebert da Silva Felix, Larissa Araújo Oliveira, Lucia Andrea Sindeaux de Oliveira, Maria Cristiane Martins de Souza, José Cleiton Sousa dos Santos   +12 more
doaj   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

Small, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva, Federico Juarez‐Dominguez, Víctor Oestreicher, Martín Mizrahi, Diego Hunt, Bruno J. C. Vieira, Joao C. Waerenborgh, Valeria Ferrari, Gonzalo Abellán   +8 more
wiley   +1 more source

AJUSTE DE MODELO LINEAR DE TENDÊNCIA E PREVISÃO PARA SÉRIES DE PRODUÇÃO DE LEITE

Revista UniVap, 2017
Utilizou-se a metodologia de séries temporais aplicada à série anual de produção de leite presente na Pesquisa Pecuária Municipal (PPM) do Instituto Brasileiro de Geografia e Estatística (IBGE), no período de 1974 a 2014, com o objetivo de ajustar um ...
Matheus Silva de Oliveira, Maristela de Oliveira Bauer, Juliana Di Giorgio Giannotti   +2 more
doaj   +1 more source