Results 21 to 30 of about 50,221 (195)

Competitividade e coordenação de sistemas agroindustriais: um ensaio conceitual Competitiveness and agribusiness systems coordination: a conceptual essay

open access: yesGestão & Produção, 1999
A competitividade ganhou o lugar de destaque nos debates sobre política industrial dos anos 80 e 90. Este artigo retoma a discussão sobre o conceito de competitividade, aplicando-o a sistemas agroindustriais.
Elizabeth M.M.Q. Farina
doaj   +1 more source

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

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

Grammaticalization of coordinative conjunctions: the history of a conclusive clause

open access: yesGragoatá, 2006
In this paper, I analyze some aspects related to the grammaticalization of the coordinating conjunctions. Assuming that cognitive and pragmatic factors interact to create new grammatical items and adopting a coordination approach supported by functional ...
Sanderléia Roberta Longhin-Thomazi
doaj  

A autonomia municipal na prestação regionalizada de saneamento básico

open access: yesRevista de Direito Setorial e Regulatório, 2023
[Propósito] O presente artigo aborda a temática da autonomia municipal dentro do contexto da prestação regionalizada nos serviços de saneamento básico instituída como princípio fundamental setorial pela lei federal nº 14.026/2020.
Andrea Ferreira Caputo   +3 more
doaj  

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

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

open access: yesAdvanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni   +7 more
wiley   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Senão... ao menos: da oração concessiva à locução conjuncional correlativa

open access: yesAlfa: Revista de Lingüística, 2001
>A ligação de palavras da mesma função pode ser feita apenas por pausa (justaposição), por uma conjunção (conexão simples) ou por uma locução conjuncional correlativa (conexão enfática ou correlação).
Clóvis Barleta de Morais
doaj  

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

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