Results 51 to 60 of about 151,231 (182)

Corrosão de cerâmicas à base de Si3N4 em soluções aquosas de HCl 0,1 N

Cerâmica, 1999
O comportamento à corrosão de cerâmicas à base de Si3N4 contendo misturas de Y2O3/SiO2 e RE2O3/SiO2 como aditivos nas proporções de 14 e 21% em volume ambos na estequiometria dos dissilicatos Y2Si2O7 e RE2Si2O7, respectivamente, foi estudado em soluções ...
F. Vernilli Júnior, C. A. Kelly, S. Ribeiro, A. Robin, K. Strecker, M. Hoffmann   +5 more
doaj  

Incorporation of medium chain fatty acids into fish oil triglycerides by chemical and enzymatic interesterification

Grasas y Aceites, 2009
Structured triglycerides (STs) containing both medium-chain fatty acids (MCFA) and polyunsaturated fatty acids (PUFA) in the same molecule offer nutritional and therapeutic benefits.
Maria M. C. Feltes, L. de Oliveira Pitol, J. F. Gomes Correia, R. Grimaldi, J. Mara Block, Jorge L. Ninow   +5 more
doaj   +1 more source

Light-driven oxygen evolution from water oxidation with immobilised TiO2 engineered for high performance

Scientific Reports, 2021
Calcination treatments in the range of 500–900 °C of TiO2 synthesised by the sol–gel resulted in materials with variable physicochemical (i.e., optical, specific surface area, crystallite size and crystalline phase) and morphological properties.
Maria J. Sampaio, Zhipeng Yu, Joana C. Lopes, Pedro B. Tavares, Cláudia G. Silva, Lifeng Liu, Joaquim L. Faria   +6 more
doaj   +1 more source

A EVASÃO APARENTE ENTRE ENGENHARIAS SOB A ÓTICA DA ANÁLISE DE REDES SOCIAIS [PDF]

, 2017
Embora muito se ressaltem as altas taxas de deserção acadêmica nos cursos de engenharia, as evasões aparentes pouco são evidenciadas, mesmo sendo parte do fenômeno. Dessa forma, o presente estudo aborda a evasão aparente entre habilitações da grande área
Cabello, Andrea Felippe, Hoffmann, Valmir Emil, Miranda Júnior, Newton da Silva   +2 more
core   +3 more sources

Dewatering combined with Moringa oleifera extract coagulation for industrial‐grade cassava starch concentration

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 5, Page 1094-1102, May 2026.
Abstract Background Efficient dewatering is a critical step in cassava starch production because the moisture content of the concentrated slurry directly affects downstream drying costs and overall process efficiency. Conventional concentration routes, including sedimentation and centrifugation, often provide limited cake dryness and can increase ...
Maria Eduarda S Speretta, Amarilis S Souza, Ana Carolina R Stoppe, Marcelo S Bacelos, Kássia G Santos   +4 more
wiley   +1 more source

EDUCIÊNCIA: DA INTERDISCIPLINARIDADE AO STEAM

Revista REAMEC, 2020
O Grupo de Pesquisa Laboratório de Ensino de Ciências (EDUCIENCIA) foi criado na Universidade Federal de Rondônia (UNIR) em 2002 e vem atuando de forma interdisciplinar e transdisciplinar na área de Ensino de Ciências, principalmente com a formação de ...
Elizabeth Antonia Leonel de Moraes Martines, Leandro Barreto Dutra, Paulo Roberto de Oliveira Borges   +2 more
doaj   +1 more source

Flow of low viscosity Boger fluids through a microfluidic hyperbolic contraction [PDF]

, 2011
In this work we focus on the development of low viscosity Boger fluids and assess their elasticity analyzing the flow through a microfluidic hyperbolic contraction.
Alves, M.A., Campo-Deaño, Laura, Galindo-Rosales, Francisco J, Oliveira, Monica, Pinho, F.T.   +4 more
core   +1 more source

Poly(Hydroxybutyrate‐Co‐Hydroxyvalerate)/Thermoplastic Starch Blends for Application in Biodegradable Mulch Films

Polymer Engineering &Science, Volume 66, Issue 5, Page 3751-3765, May 2026.
Poly(hydroxybutyrate‐co‐hydroxyvalerate)/thermoplastic starch blends, produced by melt processing, showed improvements in mechanical properties and water vapor transmission barrier performance, which can help control excessive water evaporation from the soil, thus contributing to pH and moisture regulation.
Pâmela R. Oliveira, Tânia Laís F. da Silva, Cristiano S. Teixeira, Tales S. Daitx, Larissa N. Carli   +4 more
wiley   +1 more source

Enzyme Technology in Bioethanol Production from Lignocellulosic Biomass: Recent Trends with a Focus on Immobilized Enzymes

BioResources, 2023
Enzyme immobilization is a useful tool to produce biocatalysts with improved performance, such as high activity, high stability at operational conditions, and easy recovery and reuse.
Beatriz Meneghetti Costa de Araújo, Isabela Oliveira Costa, Hellockston Gomes de Brito, Nathália Saraiva Rios, Everaldo Silvino dos Santos   +4 more
doaj   +2 more sources

Estimation of Thermochemical Properties of Propellants Using Peng-Robinson Equation of State

Journal of Aerospace Technology and Management, 2023
Several aspects make nitrocellulose based powders adequate as a solid propellant for rockets and missiles and the preferable propellant to be used in firearms and artillery: it produces less smoke and less fouling than other propellants; its burning ...
Luciana Amorim da Silva, Ana Carolina Marotti Dias, Hector Gabriel Teixeira Volskis,  José Daniel Langendorf da Silva, Aline Cardoso Anastacio, Fernando Cunha Peixoto   +5 more
doaj