Results 91 to 100 of about 207,837 (306)

Optofluidic Raman Analysis and Capacity Recovery in Li‐ion Cells

open access: yesAdvanced Materials Technologies, EarlyView.
Operando Raman spectroscopy is used to monitor the degradation of commercial Li‐ion cells. Using a microfluidic access port, small amounts of electrolyte are sampled into a hollow‐core optical fibre, where fibre‐enhanced Raman analysis reveals Li+ solvation changes and solvent evolution.
Ermanno Miele   +9 more
wiley   +1 more source

BRASIL E PORTUGAL: Diplomacia e Política

open access: yesConvergência Lusíada, 2000
Escrito por Williams Gonçalves.
Williams Gonçalves
doaj  

La salud de las web universitarias españolas

open access: yesRevista Española de Documentación Científica, 2003
La web se ha convertido en una importante herramienta para las universidades, donde se utiliza en una amplia variedad de formas, tales como publicar y diseminar actividades y resultados de investigación, proporcionar información administrativa y ...
Mike Thelwall, Isidro F. Aguillo
doaj   +1 more source

Polímeros con propiedades redox. Aplicaciones en medicina [PDF]

open access: yes, 2019
Los polímeros redox son macromoléculas electroactivas con grupos que pueden ser oxidados (pierden electrones) o reducidos (ganan electrones). Esta reacción de oxidación- reducción de los polímeros es la responsable del mecanismo de acción: posibilidad
Gálvez Domínguez, Carmen
core  

Material Selection and Geometric Design for Few‐filament Shape Memory Polymer Yarns for Force Generation

open access: yesAdvanced Materials Technologies, EarlyView.
A custom shape memory polymer material selection process relates quantitative application criteria (e.g., compression garment yarns) to material characterization information. The selected materials are manufactured into yarn geometries, which expand the design space by creating structural stress‐strain profiles beyond the nominal material stress‐strain
Michaela Andrews   +2 more
wiley   +1 more source

PORTUGAL E O BRASIL: Atribulações de duas identidades

open access: yesConvergência Lusíada, 2000
Escrito por Luís Filipe Castro Mendes.
Luís Filipe Castro Mendes
doaj  

Analysis of interactions of actors of the knowledge network on malaria in Colombia [PDF]

open access: yesBiomedica, 2022
Jiménez-Manjarres M   +4 more
europepmc   +1 more source

Circuito ASIC para enlaces rápidos de comunicaciones por fibra óptica [PDF]

open access: yes, 2009
El circuito integrado que aquí se describe ha sido diseñado con tecnología puramente digital, y tiene como función servir de interfase entre 8 enlaces rápidos de comunicaciones por fibra óptica y un procesador local que utiliza protocolo VME.
García Franquelo, Leopoldo   +5 more
core  

New Directions in Focused Ion Beam Induced Deposition for the Nanoprinting of Functional 3D Heterostructures

open access: yesAdvanced Materials Technologies, EarlyView.
Here, it is shown that focused ion beam induced deposition (FIBID) using helium and neon ions enables advanced high‐resolution 3D nanoprinting achieving precise multimaterial architectures and engineered internal voids. Thus, FIBID with finely focused noble gas ion species is presented as a unique platform for designing functional nanomaterials for ...
Frances Isabel Allen
wiley   +1 more source

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