Results 121 to 130 of about 51,308 (258)
Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers
Advanced Materials, EarlyView.Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez +9 more
wiley +1 more source
Sur les fonctions harmoniques conjuguées et les séries de Fourier [PDF]
, 1925 Théorème: Si f(θ) est une fonction sommable, si de plus $ f(ρ,θ)=1//(2π) ∫_(-π}^(+π) f(α) (1-ρ^2)//(1+ρ^2-2ρ cos(α-θ))dα $, alors, z tendant vers $e^(iθ)$ le long d'un chemin quelconque non tangent à la circonférence, la fonction harmonique g(z ...
Kolmogoroff, A.
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RESPUESTA MAGNETOTELÚRICA DE MEDIOS ANISÓTROPOS
Anales (Asociación Física Argentina), 2013 Se propone un método para calcular la respuesta electromagnética de estructuras multicapas bidimensionales formadas por medios anisótropos. Los campos eléctricos y magnéticos se desarrollan en series de Fourier, cuyos coeficientes se calculan resolviendo
A M Rosella, P Martinelli
doaj
Advanced Materials, EarlyView.This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau +9 more
wiley +1 more source
Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD
Advanced Materials, EarlyView.Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo +6 more
wiley +1 more source
La place de la science dans l'œuvre de Charles Fourier [PDF]
, 1996 Charles Fourier, utopiste réformateur du début du XIXème siècle, auteur d'un traité de l'Association domestique-agricole et d'une curieuse théorie des séries, ne doit pas être confondu avec son homonyme et contemporain Joseph Fourier, mathématicien dont ...
Chabot, Hugues
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Advanced Materials, EarlyView.A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal +7 more
wiley +1 more source
L'inauguration des séries trigonométriques dans la Théorie analytique de la chaleur de Fourier et dans la controverse des cordes vibrantes. [PDF]
, 2013 International audienceCet article applique les notions de texte et d'énoncé inaugural à la Théorie analytique de la chaleur de Fourier et à la controverse des cordes vibrantes. Il établit que seul le livre de Fourier est un texte inaugural. Il propose en
Herreman, Alain
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Caracterización morfólogica del M2 de primates Hominoidea a partir de análisis de Fourier
Revista Argentina de Antropología Biológica, 2011 Los análisis de Fourier permiten caracterizar el contorno del diente a partir de un número determinado de puntos y extraer una serie de parámetros para un posterior análisis multivariante.
Galbany, Jordi +3 more
doaj
Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics
Advanced Materials, EarlyView.Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón +6 more
wiley +1 more source