Results 21 to 30 of about 253,036 (222)

The Role of Chitosan and Graphene Oxide in Bioactive and Antibacterial Properties of Acrylic Bone Cements

open access: yesBiomolecules, 2020
Acrylic bone cements (ABC) are widely used in orthopedics for joint fixation, antibiotic release, and bone defect filling, among others. However, most commercially available ABCs exhibit a lack of bioactivity and are susceptible to infection after ...
Mayra Eliana Valencia Zapata   +2 more
doaj   +1 more source

Síntesis de nanocompuestos oro-grafeno para la cuantificación electroquímica de peróxido de hidrógeno y glucosa

open access: yesMundo Nano, 2023
La cuantificación electroquímica de biomarcadores en fluidos frecuentemente emplea nanopartículas metálicas como sustratos de detección. El desarrollo de materiales de cuantificación ha evolucionado en las últimas décadas con la incorporación de ...
Salvador Fernández   +3 more
doaj   +1 more source

Evaluación térmica de sistemas geopoliméricos basados en metacaolín con incorporación de humo de sílice y ceniza de cascarilla de arroz

open access: yesInformador Técnico, 2014
Se presentan los resultados obtenidos al someter un material geopolimérico basado en metacaolín a una temperatura de 1.200 °C utilizando como activador alcalino una mezcla de hidróxido de potasio con diferentes fuentes de sílice: un silicato comercial de
Monica A Villaquirán
doaj   +1 more source

Electrochemical Impedance Spectroscopy Investigation of Alloy Inconel 718 in Molten Salts at High Temperature

open access: yesInternational Journal of Electrochemical Science, 2011
The corrosion behavior in molten salts of Inconel 718 (IN 718) superalloy was investigated by Electrochemical Impedance Spectroscopy (EIS). The corrosion test temperatures used were salt melting points of Na2SO4, 80V2O5-20Na2SO4, NaVO3 and natural ash ...
J.L. Trinstancho-Reyes   +7 more
doaj   +1 more source

Materiales Compuestos de Fibras Naturales [PDF]

open access: yes, 2019
Desarrollar una industria ecológica basada en materiales renovables, tecnologías sostenibles y procesos óptimos con bajo impacto ambiental es un objetivo fundamental, pero sigue siendo un desafío considerable por lograr. A pesar de la gran cantidad de investigaciones sobre materiales compuestos basados en fibras naturales, limitadas investigaciones se ...
openaire   +2 more sources

Advances in Magnetic Noble Metal/Iron-Based Oxide Hybrid Nanoparticles as Biomedical Devices

open access: yesBioengineering, 2019
The study of the noble metal magnetic hybrid nanoparticles is a really promising topic from both the scientific and the technological points of views, with applications in several fields.
Laura M. Sanchez, Vera A. Alvarez
doaj   +1 more source

Transient Analysis of Electrochemical Noise for 316 and Duplex 2205 Stainless Steels Under Pitting Corrosion

open access: yesInternational Journal of Electrochemical Science, 2011
The use of electrochemical noise (EN) technique for the investigation and monitoring of corrosion has allowed many interesting advances in the corrosion science in recent years.
F.H. Estupiñán-López   +6 more
doaj   +1 more source

Gestural Sequences in Wild Spider Monkeys (Ateles geoffroyi)

open access: yesAmerican Journal of Primatology, Volume 88, Issue 4, April 2026.
Geoffroy's spider monkeys produce gestural sequences in the wild, mostly during aggressive, playful and sexual interactions. ABSTRACT To date, research on gestural communication in species other than great apes has been quite limited, especially in their natural habitat, although including a broader range of species in different settings is essential ...
Eva Corral   +4 more
wiley   +1 more source

Corrosion Fatigue of Road Bridges: a review

open access: yesInternational Journal of Electrochemical Science, 2011
In this paper a review is presented about studies involving the fatigue and the corrosion of bridge elements. Reviewed reports include steel structures and steel-reinforced concrete bridges, classified as experimental and theoretical approaches.
F.J. Olguin Coca   +6 more
doaj   +1 more source

Finite Element Modeling of Composite Materials using Kinematic Constraints [PDF]

open access: yes, 2016
El propósito de este artículo es presentar simulaciones del comportamiento de materiales compuestos basado en restricciones cinemáticas entre las mismas fibras y entre las fibras y la resina circundante -- En la revisión de literatura, los autores han ...
Barschke, Merlin   +4 more
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