Results 31 to 40 of about 12,584 (157)

Caracterização Mecânica de Compósitos Cimentícios Reforçados com Fibras de Politereftalato de Etileno Espiraladas

open access: yesE&S Engineering and Science, 2017
Este trabalho apresenta um estudo sobre as propriedades mecânicas e de porosidade de compósitos reforçados com fibras de politereftalato de etileno (PET) espiraladas provenientes da reciclagem de garrafas de refrigerante.
Paloma Fonseca Rodrigues   +2 more
doaj   +1 more source

Influence of Hornification Treatment and Fiber Length on the Performance of Recycled Polypropylene Composites

open access: yesPolymer Composites, Volume 47, Issue 5, Page 4793-4803, 10 March 2026.
Study of the influence of hornification treatment and jute and mallow fiber length on the physical, thermal, and mechanical properties of recycled polypropylene (PP) composites. ABSTRACT The growing accumulation of plastic waste has driven its reuse in the development of new composites, with natural fibers emerging as promising reinforcements. However,
Raquel de Sousa Freire   +4 more
wiley   +1 more source

Bioresorbable Plates and Screws for Clinical Applications: A Review

open access: yesJournal of Healthcare Engineering, Volume 3, Issue 2, Page 243-260, 2012., 2012
Bioresorbable implants are being widely used for fracture fixation in orthopaedic surgery and the market is expanding rapidly worldwide. Bioresorbable materials slowly dissolve in the human body, such that a second operation to remove the synthetic material is not needed. Bioresorbable implants have expanded the armamentarium of the surgeon, especially
Sandra Pina, José M. F. Ferreira
wiley   +1 more source

Análise experimental de compósitos de poliuretano derivado de óleo de mamona e fibras de bananeira [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2011A crescente preocupação global com relação ao meio ambiente e preservação de recursos ...
Merlini, Claudia
core  

Levantamento bibliográfico sobre caracterização de concentradores de tensão em materiais compósitos [PDF]

open access: yes, 2021
No cenário atual, a engenharia tem buscado diversas formas e métodos para desenvolver projetos, peças, ferramentas, máquinas, entre outras tecnologias, com a maior eficiência, eficácia e inovação. Diante disso, os materiais compósitos têm se mostrado
Malveira, Iane Jóice Diógenes
core  

Efeito do tratamento alcalino de fibras de Curauá sobre as propriedades de compósitos de matriz biodegradável

open access: yesPolímeros, 2014
Neste trabalho avaliou-se a influência do tratamento alcalino das fibras de curauá, nas concentrações de 1, 5 e 10%(m/v) de NaOH, nas propriedades dos compósitos com matriz de PHBV e 20% m/m de fibras de curauá.
Lílian Vanessa Rossa Beltrami   +2 more
doaj   +1 more source

Electrospun PA12 Nanofibers: Effect of Solution Parameters on Fiber Morphology

open access: yesMacromolecular Symposia, Volume 414, Issue 6, December 2025.
ABSTRACT Carbon fiber‐reinforced polymers (CFRPs) are widely used in different industries due to their exceptional mechanical properties and low density. However, delamination and poor vibration damping capacity pose significant challenges to their application.
Rebecca Rosa   +6 more
wiley   +1 more source

Preparation and Characterization of Zein and Zein‐Chitosan Microspheres with Great Prospective of Application in Controlled Drug Release

open access: yesJournal of Nanomaterials, Volume 2011, Issue 1, 2011., 2011
Biomaterials applied as carriers for controlled drug delivery offer many advantages over the conventional systems. Among them, the increase of treatment effectiveness and also a significant reduction of toxicity, due to their biodegradability property, are some special features.
Vinícius Müller   +6 more
wiley   +1 more source

Processamento e caracterização de compósitos formados por resina fenólica e fibras de bagaço de cana como reforço [PDF]

open access: yes, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de Materiais.O desenvolvimento de materiais compósitos poliméricos utilizando fibras vegetais como reforço é crescente ...
Leite, Janaina Lisi
core  

Prognostic Impact of Spontaneous Conversion to Sinus Rhythm in Patients With Symptomatic Paroxysmal Atrial Fibrillation: A Propensity‐Matched Follow‐Up Study

open access: yesJournal of Cardiovascular Electrophysiology, Volume 36, Issue 12, Page 3222-3230, December 2025.
ABSTRACT Background Paroxysmal atrial fibrillation (PAF) patients do not invariably progress to persistent AF, with a consistent group of patients showing AF regression during follow‐up. The prognostic implications of spontaneous conversion (SCV) to sinus rhythm (SR) in those patients has never been evaluated yet.
Marco Valerio Mariani   +14 more
wiley   +1 more source

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