Results 121 to 130 of about 235 (213)

Deployable 3D‐Printed Vascular Stent with Surface‐Catalysed Endogenous Nitric Oxide Generation

open access: yesAdvanced Materials, EarlyView.
A deployable 3D‐printed vascular stent was fabricated with surface‐catalyzed endogenous nitric oxide generation, representing a promising new direction for stent development. The stent can be remotely controlled by magnetic force in its compressed state and fully deployed at the target site using an untethered heat source, potentially eliminating the ...
Kun Zhou   +8 more
wiley   +1 more source

Estudio de películas delgadas de AlN depositadas mediante sputtering por magnetrón DC en modo reactivo: efecto de la presión en la textura

open access: yesAnales (Asociación Física Argentina), 2016
El nitruro de aluminio es un compuesto cerámico con multitud de aplicaciones tecnológicas en muchos campos,tales como la óptica, la electrónica y los dispositivos resonadores.
J García Molleja   +5 more
doaj  

Photochemical Fuel Carrier Molecules for Robotic Embodied Energy

open access: yesAdvanced Materials, EarlyView.
We designed a novel fuel carrier photoresponsive molecule for on‐demand energy storage and release. Carrier molecules undergo bond scission under UV light to release chemical fuel and locally generate propulsive Marangoni flows. We demonstrate this photochemical embodied energy strategy in small‐scale robots and active matter systems, enabling ...
Chuqi Huang   +6 more
wiley   +1 more source

Análisis de tensiones residuales y predicción de inestabilidad en chapas soldadas

open access: yes, 2007
Como consecuencia del aporte de calor no uniforme que tiene lugar durante el proceso de soldeo junto con la dependencia que las propiedades del material tienen respecto a la temperatura se produce un complejo estado tensional en las piezas soldadas, estado que no desaparece al finalizar el proceso y que permanece como tensiones residuales.
openaire   +2 more sources

Hydro‐Torsional Compaction for Scalable Production of Aramid Nanofiber Threads with Densely Assembled Double‐Helical Nanostructures

open access: yesAdvanced Materials, EarlyView.
This paper introduces a scalable strategy for producing hierarchically aligned PBDT threads through wet‐spinning, controlled drawing, and post‐spinning twisting. Ionic crosslinking reinforces structural stability, whereas alignment and twisting optimize mechanical performance.
Woojae Jeong   +5 more
wiley   +1 more source

Comportamiento frente a la corrosión del material compuesto 2124/SiC

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2005
A comparative study was performed on the corrosion behaviour of an aluminium matrix composite reinforced with silicon carbide particles, obtained by powder metallurgic. The 2124/SiC material was heat treated using T4 and T6 procedures.
López-Caballero, J. A.   +4 more
doaj  

Effect of Surface‐Lubricant Compatibility on Bubble Formation in Lubricant‐Infused Surfaces

open access: yesAdvanced Materials Interfaces, EarlyView.
Lubricant‐infused surfaces reduce drag partly through bubbles that form when lubricant depletes. Using laser‐textured steel infused with silicone oil, we show that microbubble nucleation occurs even on surfaces fully wetted by the lubricant, regardless of chemistry.
Leo James   +4 more
wiley   +1 more source

Tecnología de recuperación de un eje del torno 16K20

open access: yesCiencia & Futuro
Se diseñó una metodología para la recuperación de un eje ubicado en la caja de avance del torno 16k20, el cual ha sufrido desgate por fricción de una de las estrías a través de la soldadura por arco eléctrico. Se especifican las propiedades del material,
Eikandel Matos-Mendoza   +4 more
doaj  

Tensiones de crecimiento en híbridos de Alamo creciendo en Chile

open access: yesMaderas: Ciencia y Tecnología, 2014
Este estudio investiga las deformaciones residuales longitudinales de maduración (DRLM) en árboles jóvenes en pie (6 y 8 años de edad), teniendo como objetivo medir y analizar, en forma indirecta, la variabilidad de las tensiones de crecimiento  en ...
Francis Devlieger, Rodrigo Quintana
doaj  

Roadmap to Precision 3D Printing of Cellulose: Rheology‐Guided Formulation, Fidelity Assessment, and Application Horizons

open access: yesAdvanced Materials Technologies, EarlyView.
This critical review presents a comprehensive roadmap for the precision 3D printing of cellulose. Quantitative correlations link ink formulation and rheological properties to print fidelity and final material performance. This framework guides the development of advanced functional materials, from biomedical scaffolds to electromagnetic shielding ...
Majed Amini   +3 more
wiley   +1 more source

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