Results 131 to 140 of about 17,915 (247)

Diseño de mezcla asfáltica con asfalto caucho tecnología GAP GRADED para la ciudad de Bogotá [PDF]

open access: yes, 2014
Trabajo de investigaciónEn el mundo moderno un grave problema medioambiental es el desecho de los neumáticos. Las principales dificultades generadas por este residuo, tienen que ver con su disposición final, dado que la mayoría de los neumáticos fuera de
Ladino-Rubio, Ingryd Lorena   +2 more
core  

Bioresorbable Mo–W Electrodes: Toward an Extended Operational Lifetime Through Controlled Alloying and Oxide Coating Engineering

open access: yesAdvanced Materials Interfaces, EarlyView.
Bioresorbable electrochemical sensors face instability in biofluids. Although alloys can mitigate rapid in vivo dissolution, Mo–W remains underexplored for sensing. This work engineers Mo–W films with a nanocrystalline oxide coating, improving stability and enabling reliable oxygen and pH sensing for up to 10 days, highlighting their potential for ...
C. Fernandes   +4 more
wiley   +1 more source

Passivated SiC Surfaces for Photonic and Quantum Applications: Balancing Chemical Stability and Surface Luminescence

open access: yesAdvanced Materials Interfaces, EarlyView.
Low‐temperature passivation of SiC reveals that optical surface quality and chemical stability are not directly correlated. Ar plasma‐treated and SiNx‐passivated surfaces yield the lowest photoluminescence background, whereas CF4 plasma and ALD‐grown dielectrics introduce higher emission.
Marina Scharin‐Mehlmann   +4 more
wiley   +1 more source

Reciclaje de pavimentos : estudio de las ventajas económicas del reciclaje en frío in situ de pavimentos asfalticos [PDF]

open access: yes, 2015
En los procesos de mantenimiento y rehabilitación de pavimentos, se deben definir los objetivos, bien sea para realizar unas reparaciones superficiales sobre daños generados por el agua como consecuencia de fallas en los drenajes, o bien realizar una ...
Restrepo Sierra, Héctor Albeiro   +1 more
core  

Estudio sobre la compactación de materiales granulares para la manufactura de comprimidos

open access: yes, 1999
El tema de la presente tesis es la manufactura de comprimidos, área sobre la que convergen diversos campos del conocimiento científico como la farmacología, el diseño mecánico y la ciencia de materiales; se pone especial énfasis en la compactación de las soluciones granulares con que los comprimidos son elaborados por ser una parte preponderante y ...
Flores Salazar, Ariel   +1 more
openaire   +1 more source

Hybrid Magnetoactive Soft Elastomers: Material Development Toward Application in Diaphragm Pumps

open access: yesAdvanced Materials Technologies, EarlyView.
Hybrid magnetoactive soft elastomeric membranes are developed by combining two different types of magnetic particles. The membranes exhibit distinct mechanical, magnetic and thermal properties owing to the unique characteristics of the two magnetic particles.
Somashree Mondal   +4 more
wiley   +1 more source

Rehabilitation of tertiary routes with the system of plate treads [PDF]

open access: yes, 2014
El presente documento hace resaltar las principales características constructivas y de diseño de un sistema para el mejoramiento y rehabilitación de vías terciarias en el país llamado placa huella que empezó a utilizarse desde el año 2007, este sistema
Arellano Murcia, Diego Fernando
core  

Hydrogel‐Based 3D‐Printable Stretchable Pressure Sensor

open access: yesAdvanced Materials Technologies, EarlyView.
We present a carbon‐black‐functionalized double‐network granular hydrogel (DNGH) pressure sensor capable of detecting pressures from 200 Pa, equivalent to a light finger touch, up to 500 kPa. The sensor exhibits signal drifts below 3.5% after 800 cycles and response times around 80 ms. Leveraging this broad sensing range, we 3D print this material into
Tianyu Yuan   +4 more
wiley   +1 more source

Elastomers Combining Damping Efficiency With Rapid Recovery

open access: yesAdvanced Materials Technologies, EarlyView.
Double network granular elastomers (DNGEs) combine high energy dissipation under both cyclic loading and high impact with rapid shape recovery. 3D printing enables the production of complex, customizable structures with tailored performance. Recyclable DNGEs retain their properties over multiple recycling cycles.
Eva Baur, Alain Molleyres, Esther Amstad
wiley   +1 more source

Immunocytology in arthritic joints. [PDF]

open access: yesAnn Rheum Dis, 1967
Barnhart MI, Riddle JM, Bluhm GB.
europepmc   +1 more source

Home - About - Disclaimer - Privacy