Results 51 to 60 of about 75,619 (212)

Sustainable Carbon Fiber Composites Based on Recyclable Bio‐Based Vanillin Thermoset Polymers

open access: yesPolymer Composites, EarlyView.
Development of composite materials made from a bio‐based and mechanically recycled vitrimeric polymer matrix. ABSTRACT Although bisphenol A (BPA) is the most used organic compound in the production of thermosets for composite materials, there has been an urgent scientific concern to eliminate it in the last years due to the environmental issues raised ...
Javier Gómez Sánchez   +4 more
wiley   +1 more source

Lokale Repräsentationsspezifika der AfD im Vergleich: Klassenfragen im Kontext der sachsen-anhaltinischen Kommunalwahl 2024

open access: yesZeitschrift für Rechtsextremismusforschung
In diesem Artikel werden deskriptive Repräsentationsmuster und -disparitäten der AfD auf kommunaler Ebene am Fallbeispiel der sachsen-anhaltinischen Kommunalwahlen 2024 herausgearbeitet.
Nikolas Dietze
doaj   +1 more source

Electrostatic engineering of strained ferroelectric perovskites from first-principles

open access: yes, 2015
Design of novel artificial materials based on ferroelectric perovskites relies on the basic principles of electrostatic coupling and in-plane lattice matching.
Cazorla, Claudio, Stengel, Massimiliano
core   +1 more source

Theoretical simulation of the anisotropic phases of antiferromagnetic thin films [PDF]

open access: yes, 2006
We simulate antiferromagnetic thin films. Dipole-dipole and antiferromagnetic exchange interactions as well as uniaxial and quadrupolar anisotropies are taken into account. Various phases unfold as the corresponding parameters, J, D and C, as well as the
H. S. Jarrett   +8 more
core   +2 more sources

The Measurement‐Impact Gap: A Bibliometric Diagnosis of Development Finance Institutions and SDG Research

open access: yesSustainable Development, EarlyView.
ABSTRACT The role of Development Finance Institutions (DFIs) in achieving the Sustainable Development Goals (SDGs) is a topic of growing scholarly importance. While existing literature has mapped the thematic scope of this field, a critical diagnosis of its intellectual structure and inherent biases is missing.
Juan Martinez Alvarez   +3 more
wiley   +1 more source

Level Crossing Rate and Average Fade Duration of the Multihop Rayleigh Fading Channel

open access: yes, 2008
We present a novel analytical framework for the evaluation of important second order statistical parameters, as the level crossing rate (LCR) and the average fade duration (AFD) of the amplify-and-forward multihop Rayleigh fading channel.
Hadzi-Velkov, Zoran   +2 more
core   +1 more source

Influence of the Chemical Composition on the Perovskites Anharmonicity: Toward a Stable Inorganic Perovskite

open access: yesSolar RRL, EarlyView.
This study investigates the effect of the chemical composition on the properties of A(BB’)(XX’)3$_3$ inorganic halide perovskites with density functional theory. By correlating distortion amplitudes with both composition and the Goldschmidt tolerance factor, we propose a pragmatic approach to designing more stable and efficient perovskites, advancing ...
Antoine Gissler   +2 more
wiley   +1 more source

Effect of solid thermal conductivity and particle-particle contact on effective thermodiffusion coefficient in porous media [PDF]

open access: yes, 2011
Transient mass transfer associated to a thermal gradient through a saturated porous medium is studied experimentally and theoretically to determine the effect of solid thermal conductivity and particle-particle contact on thermodiffusion processes.
Davarzani, Hossein   +2 more
core   +3 more sources

Universal Fabrication of Graphene/Perovskite Oxide Hybrid Heterostructures

open access: yesSmall Structures, EarlyView.
This study presents a universal, catalyst‐free method for the direct growth of monolayer graphene on perovskite oxides without the need for transfer. The process yielded uniform graphene formation across different insulating substrates under identical conditions, revealing a substrate‐independent growth mechanism.
Yeongju Choi   +14 more
wiley   +1 more source

Atypical Distribution of Late Gadolinium Enhancement of the Left Ventricle on Cardiac Magnetic Resonance in Classical Anderson-Fabry Disease

open access: yesJournal of the Belgian Society of Radiology, 2016
Anderson-Fabry disease (AFD) is an X-linked lysosomal storage disorder caused by a deficiency of alpha-galactosidase A. Approximately 50% of patients with AFD may have cardiac involvement.
Shusuke Kasuya   +7 more
doaj   +1 more source

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