Results 51 to 60 of about 58,646 (257)

Influência da espessura de revestimentos de argamassa no desempenho acústico de alvenarias de blocos cerâmicos

open access: yesAmbiente Construído, 2019
Resumo Percebe-se uma maior preocupação com o desempenho das edificações habitacionais após a publicação da NBR 15575 (ABNT, 2013a), tornando indispensável a avaliação e possível adequação de sistemas construtivos e seus materiais para atendimento dos ...
Sérgio Klippel Filho   +4 more
semanticscholar   +1 more source

Novel Applications of Ferrites

open access: yesPhysics Research International, Volume 2012, Issue 1, 2012., 2012
The applications of ferrimagnetic oxides, or ferrites, in the last 10 years are reviewed, including thin films and nanoparticles. The general features of the three basic crystal systems and their magnetic structures are briefly discussed, followed by the most interesting applications in electronic circuits as inductors, in high‐frequency systems, in ...
Raúl Valenzuela, Arcady Zhukov
wiley   +1 more source

Formation of eflorescent salts during burning

open access: yesMateriales de Construccion, 1968
Not ...
E. Schmidt
doaj   +1 more source

Cristalización de vidrios bioactivos del sistema 31SiO2-11P2O5-(58-X) CaO –X MgO: influencia del tratamiento térmico y de la composición química

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2022
Resumen: En este trabajo se estudió la influencia de la composición química y del tratamiento térmico en la cristalización de biovidrios del sistema 31SiO2-11P2O5-(58-X) CaO –X MgO (X = 0, 2, 7, 16 y 32). El tratamiento térmico se realizó a 900, 1.000, 1.
Mónica Monsalve   +3 more
doaj   +1 more source

Los contextos altoimperiales de Augusta Emerita. Una visión diacrónica del comercio cerámico en el siglo I d.C. [PDF]

open access: yes, 2016
Programa “Junta de Ampliación de Estudios” (JAE-DOC, CSIC), financiado por el FSE.Peer ...
Bustamante Álvarez, Macarena
core   +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

Superconductores conteniendo grupos de fosfato derivado del YBa2Cu3O7

open access: yesRevista de Investigación de Física, 2013
Completamos la caracterización del compuesto superconductor [Y1-xCax](BaSr)Cu3-y(PO4)y0z derivado del YBa2Cu3O7, preparado en condiciones normales de temperatura y presión, mediante el método de reacción de estado sólido, reportado en nuestros resultados
J. C. González, A. Bustamante
doaj   +1 more source

Solid-state synthesis of alpha tricalcium phosphate for cements used in biomedical applications

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2020
Alpha tricalcium phosphate (α-TCP) is a ceramic widely used in cements for orthopedic and dentistry applications, which is synthesized by solid-state reactions occurred at high temperature, being highly relevant the control of the cooling rate in order ...
Daniel Moreno   +3 more
doaj   +1 more source

The Kinetics of Ampicillin Release from Hydroxyapatite for Bones Regeneration

open access: yesInternational Journal of Chemical Engineering, Volume 2009, Issue 1, 2009., 2009
Semisynthetic beta‐lactam antibiotics are among the most used pharmaceuticals. Their use in veterinary and human medicine is in continuous expansion. There is a growing need for developing bioactive implants. Advantages of implantable drug delivery tools can include high release efficiency, precise dose control, low toxicity, and allow to overcome ...
Giovanilton Ferreira da Silva   +5 more
wiley   +1 more source

Nanocrystalline Diamond as a Coating for Joint Implants: Cytotoxicity and Biocompatibility Assessment

open access: yesJournal of Nanomaterials, Volume 2008, Issue 1, 2008., 2008
Nanocrystalline diamond (NCD) coatings combine a very low surface roughness with the outstanding diamond properties, such as superlative hardness, low self‐friction coefficient, high wear and corrosion resistance, and biotolerance, which are ideal features for applications in medicine (knee and hip replacement) and surgical tools.
Margarida Amaral   +6 more
wiley   +1 more source

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