Results 31 to 40 of about 8,449 (151)

Electrospun PA12 Nanofibers: Effect of Solution Parameters on Fiber Morphology

Macromolecular 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, Emanuele Maccaferri, Tiziana Benelli, Tommaso Maria Brugo, Andrea Zucchelli, Loris Giorgini, Laura Mazzocchetti   +6 more
wiley   +1 more source

Vibrational Order, Structural Properties, and Optical Gap of ZnO Nanostructures Sintered through Thermal Decomposition

Journal of Nanomaterials, Volume 2014, Issue 1, 2014., 2014
The sintering of different ZnO nanostructures by the thermal decomposition of zinc acetate is reported. Morphological changes from nanorods to nanoparticles are exhibited with the increase of the decomposition temperature from 300 to 500°C. The material showed a loss in the crystalline order with the increase in the temperature, which is correlated to ...
Alejandra Londono-Calderon, Fernando F. Jurado-Lasso, Juan D. Romero-Salazar, Nathaly Jurado-Lasso, J. Fabian Jurado, Shadi A. Dayeh   +5 more
wiley   +1 more source

Análise de ensaios in vitro do compósito de 50% HA-50% TiO2 fabricados pelo método da esponja polimérica [PDF]

Cerâmica, 2014
À medida que há uma melhoria na tecnologia aplicada à saúde humana, a expectativa de vida vem aumentando, mas nem todas as partes do corpo podem manter suas funções com o processo de envelhecimento. A engenharia tecidual foi desenvolvida para substituir,
A. G. S. Galdino, E. M. Oliveira, F. B. Filippin-Monteiro, C. A. C. Zavaglia   +3 more
doaj   +3 more sources

Compósitos à base de cimento reforçados com polpa celulósica de bambu. Parte I: Determinação do teor de reforço ótimo Cement-based composite reinforced with bamboo pulp. Part I: Determination of optimum reinforcement percentage

Revista Brasileira de Engenharia Agrícola e Ambiental, 2003
Este trabalho apresenta os resultados experimentais de um estudo em que se procurou desenvolver compósitos de matriz cimentícia reforçada com polpa de bambu. Foram usados dois tipos de polpa: refinada e sem refino.
Marcos A. S. dos Anjos, Khosrow Ghavami, Normando P. Barbosa   +2 more
doaj   +1 more source

Bioresorbable Plates and Screws for Clinical Applications: A Review

Journal 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

Tratamentos superficiais visando à melhoria da aderência entre gesso e taliscas de bambu Surface treatments aimed at improving the adhesion between plaster and bamboo slivers

Revista Brasileira de Engenharia Agrícola e Ambiental, 2012
O gesso é um aglomerante com aplicações sobretudo na fabricação de placas de forro, elementos decorativos e em paredes divisórias. No entanto, utilizando-se de uma baixa relação água/gesso e procedimentos tais como vibração, torna-se possível obter ...
Cibelle G Silva, Normando P Barbosa, Marilia P. de Oliveira   +2 more
doaj   +1 more source

Magnetic Actuation Under DC and AC Fields of Thermoplastic Polyurethane With Strontium Hexaferrite

Advanced Materials Technologies, Volume 10, Issue 13, July 8, 2025.
Magnetic thermoplastic polyurethane composites with strontium hexaferrite (SrFe12O19) are produced through a solvent‐free melt‐mixing technique. These composites display a magnetomechanical actuation mechanism, being able to deform (bend and twist) through DC and AC magnetic fields, showcasing their potential as a promising material for the fabrication
Mariana Martins da Silva, José António Covas, Maria C. Paiva, Mariana P. Proença   +3 more
wiley   +1 more source

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

Journal 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, Juliana Francis Piai, André Ricardo Fajardo, Silvia Luciana Fávaro, Adley Forti Rubira, Edvani Curti Muniz, Libo Wu   +6 more
wiley   +1 more source

Efeito da adição de cinza da casca de arroz em misturas cimento-casca de arroz Effect of the addition of rice husk ash in cement-rice husk mixtures

Engenharia Agrícola, 2008
A casca de arroz e sua cinza são abundantes e renováveis, podendo ser empregadas na obtenção de materiais de construção alternativos. O aumento do consumo desses resíduos poderia ajudar a minimizar os problemas ambientais provenientes da sua eliminação ...
Loris L. Zucco, Antonio L. Beraldo
doaj   +1 more source

Ideological Constitutionalism

The Modern Law Review, Volume 88, Issue 1, Page 64-84, January 2025.
A renewed interest in the concept of ideology is evident in recent constitutional theory. Ideology has featured prominently not only in restatements of traditional Marxist positions and attempted retrievals of the material conception of the constitution, but also in democratic critiques of liberal constitutionalism and theories of constitutional ...
George Duke
wiley   +1 more source