Results 121 to 130 of about 449,495 (289)

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin   +7 more
wiley   +1 more source

Inversiones extranjeras en España

open access: yes, 1968
"Este Art?culo pertenece a la secci?n En punto. "
openaire   +2 more sources

La presentación del Mecanismo Euro-Mediterráneo para las Inversiones: ¿Hacia un nuevo Banco Euro-Mediterráneo? [PDF]

open access: yes, 2002
Un nuevo Mecanismo Euro-Mediterráneo para las Inversiones y Asociación (MEMIA) en el seno del Banco Europeo de Inversiones (BEI) fue presentado oficialmente en Barcelona el 18 de octubre por los ministros de Economía de los Estados miembro de la Unión ...
Mira, Clara
core  

Bio‐Friendly Artificial Muscles Based on Carbon Nanotube Yarns and Eutectogel Derivatives

open access: yesAdvanced Functional Materials, EarlyView.
Solid‐state artificial muscles based on coiled commercial carbon nanotube yarns coated with eutectogel derivatives exhibit unipolar actuation through selective ion intercalation. Combining polyanionic and polycationic gels enables enhanced contractile stroke and high energy density.
Gabriela Ananieva   +6 more
wiley   +1 more source

Inversiones americanas en España

open access: yes, 1970
"L?pez Mu?oz, Arturo" tambi?n ha firmado sus art?culos como "Cabello, Arturo"
openaire   +1 more source

Inversiones para jóvenes universitarios

open access: yes, 2021
Esta investigación está enfocada en exponer los diferentes tipos de inversión existentes en Colombia analizando sus beneficios, características, riesgos y la forma en los cuales los jóvenes universitarios de Bogotá entre los veinte a veintiséis años pueden acceder a este tipo de inversiones y poder generar sus primeras inversiones.
Estrada Valderrama, Sergio   +3 more
openaire   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Hydrogen‐Bond‐Rich Supramolecular Multiblock Copolymers Facilitate Rapid Zn2+ Migration in Quasi‐Solid‐State Zinc‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The disordered growth of dendrites, corrosion, parasitic side reactions, slow de‐solvation kinetics, and inherent safety risks significantly hinder the practical deployment of conventional liquid electrolyte zinc‐ion batteries. In contrast, the novel PU‐EG+DMPA‐Zn polyurethane quasi‐solid‐state electrolyte, enriched with abundant polar functional ...
Ruiqi Liu   +10 more
wiley   +1 more source

España e Ibero América. Cambios estructurales y nuevas relaciones tras la emancipación de Hispanoamérica (1824-2005)

open access: yesAnales de Geografía de la Universidad Complutense, 2007
La Independencia de la América Hispánica inauguró una nueva etapa en las relaciones entre España y las naciones aparecidas al comienzo del siglo XIX. La normalización diplomática se produjo en la segunda mitad de esa centuria paralelamente a un momento ...
Joaquín Bosque Maurel
doaj  

Thickness‐Dependent Skyrmion Evolution in Fe3GeTe2 During Magnetization Reversal

open access: yesAdvanced Functional Materials, EarlyView.
Thickness‐ and field‐dependent magnetic domain behavior in 2D van der Waals Fe3GeTe2 is studied using Lorentz TEM and micromagnetic simulations. A patch‐like domain phase evolves from skyrmions during magnetization reversal, and step edges between thickness regions act as pinning sites.
Jennifer Garland   +9 more
wiley   +1 more source

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