Results 71 to 80 of about 3,233,671 (282)

Prospection and Evaluation of (Hemi) Cellulolytic Enzymes Using Untreated and Pretreated Biomasses in Two Argentinean Native Termites [PDF]

open access: yes, 2015
Saccharum officinarum bagasse (common name: sugarcane bagasse) and Pennisetum purpureum (also known as Napier grass) are among the most promising feedstocks for bioethanol production in Argentina and Brazil.
Arneodo Larochette, Joel Demián   +10 more
core   +3 more sources

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Neutron Stars with Hyperons subject to Strong Magnetic Field [PDF]

open access: yes, 2012
Neutron stars are one of the most exotic objects in the universe and a unique laboratory to study the nuclear matter above the nuclear saturation density.
Braz J Phys   +4 more
core   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

open access: yesAdvanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo   +3 more
wiley   +1 more source

Mídia brasileira e mudanças climáticas: uma análise sobre tendências da cobertura jornalística, abordagens e critérios de noticiabilidade

open access: yesDesenvolvimento e Meio Ambiente, 2017
A mídia, com seu papel de revigorar a esfera pública e criar um fórum para o discurso público, tem sido importante para a compreensão pública das mudanças climáticas, incluindo suas incertezas, controvérsias, riscos e ameaças, bem como as projeções ...
Caroline de Araújo Rodas   +1 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Ausências-Brasil [PDF]

open access: yesRevista Eco-Pós, 2014
Ausências-Brasil \ Gustavo Germano \ 2012 Revista ECO-Pós V.20 N ...
openaire   +1 more source

Efectos de la ruptura digital en prácticas de medios populares en Brasil [PDF]

open access: yes, 2018
This article discusses the digital disruption in popular media practices in Brazil. It is based on interviews conducted from 2014 to 2016 with 55 communicators attached to 20 social movements and community associations all over the country.
Suzina, Ana Cristina
core   +2 more sources

Characterization of Macro/Microstructure and Corrosion Resistance of Austenitic Gas Tungsten Arc Welding Cladding

open access: yesAdvanced Engineering Materials, EarlyView.
Cladding is a proven method that boosts the surface qualities of mechanical parts by applying a layer of more durable material over a base substrate. This work responds to the needs of offshore and pressure vessels sectors by focusing on cladding a super austenitic steel onto low‐carbon steel through gas tungsten arc welding.
E. J. da Cruz Junior   +6 more
wiley   +1 more source

Caracterização do desempenho de destreza manual pelo teste caixa e blocos em crianças e adolescentes brasileiros

open access: yesRevista de Terapia Ocupacional da Universidade de São Paulo, 2018
O teste Caixa e Blocos (TCB) tem se mostrado eficaz para avaliar a destreza manual, que se caracteriza pela capacidade das mãos e dos dedos para desempenhar uma tarefa que requer movimentos coordenados, como a manipulação de objetos sob os aspectos de ...
Bruna Paula Boe De Almeida Turco   +2 more
doaj   +1 more source

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