Results 31 to 40 of about 47,742 (164)
Este trabajo es una propuesta para establecer las competencias y las habilidades que debe poseer o adquirir el personal que participa en el proceso de certificación de materiales de referencia para obtener información confiable en los procesos ...
Raúl Herrera Basurto +1 more
doaj +1 more source
Calcium phosphate cements improved by addition of carbonated Hydroxyapatite type B
The need for biodegradable bone graft biomaterials in orthopedic surgeries is more often each day due to the promotion of natural tissue regeneration. One option is calcium phosphate cements (CPC), that are also osseconductors.
Jeisson Ruiz +4 more
doaj +1 more source
Simple and Rapid Fabrication of Na0.5K0.5NbO3 Thin Films by a Chelate Route
Na0.5K0.5NbO3 (NKN) thin films were prepared by a chelate route which offers the advantage of a simple and rapid solution synthesis. The route is based on the use of acetoin as a chelating agent. The process was optimized by investigating the effects of alkaline volatilization on film properties.
A. Fernández Solarte +4 more
wiley +1 more source
Formation of eflorescent salts during burning
Not ...
E. Schmidt
doaj +1 more source
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
Novel Applications of Ferrites
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
Superconductores conteniendo grupos de fosfato derivado del YBa2Cu3O7
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
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
Bioresorbable Plates and Screws for Clinical Applications: A Review
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
La historia que nos cuenta la cerámica de la ciudad de Machaquila, Petén, Guatemala [PDF]
El estudio de los materiales cerámicos forma parte importante tanto de las tareas de prospección como de excavación arqueológica, y su posterior tratamiento y clasificación incide de forma esencial en los trabajos de interpretación de los yacimientos con
Iglesias Ponce de León, Mª Josefa
core +3 more sources

