Concept
Force électromotrice
Publications associées (79)
Shedding light on the MRI-driven dynamo in a stratified shearing box
We study the magneto-rotational instability (MRI) dynamo in a geometrically thin disc (H/R < 1) using stratified zero net (vertical) flux shearing box simulations. We find that mean fields and electromotive forces (EMFs) oscillate with a primary frequency ...
2024A comprehensive framework for hard-magnetic beams: Reduced-order theory, 3D simulations, and experiments
Pedro Miguel Nunes Pereira de Almeida Reis, Dong Yan, Arefeh Abbasi
Thin beams made of magnetorheological elastomers embedded with hard-magnetic particles (hard-MREs) are capable of large deflections under an applied magnetic field. We propose a comprehensive framework, comprising a beam model and 3D finite element modelin ...
PERGAMON-ELSEVIER SCIENCE LTD2022Efficient Semiclassical Evaluation of Electronic Coherences in Polyatomic Molecules
Exposing a molecule to an intense light pulse can create a nonstationary quantum state, thus launching correlated dynamics of electrons and nuclei. Although much had been achieved in the understanding of fundamental physics behind the electron-nuclear inte ...
SWISS CHEMICAL SOC2022Suppressed recombination for monolithic inorganic perovskite/silicon tandem solar cells with an approximate efficiency of 23%
Peng Wang, Yang Li, Xiaoyu Zhang, Shilong Wang
Potentially temperature-resistant inorganic perovskite/silicon tandem solar cells (TSCs) are promising devices for boosting efficiency past the single-junction silicon limit. However, undesirable non-radiative recombination generally leads to a significant ...
Beijing2022Wetting of nanopores probed with pressure
Aleksandra Radenovic, Andrey Chernev, Sanjin Marion, Michal Daniel Macha, Sebastian James Davis
Nanopores are both a tool to study single-molecule biophysics and nanoscale ion transport, but also a promising material for desalination or osmotic power generation. Understanding the physics underlying ion transport through nano-sized pores allows better ...
ROYAL SOC CHEMISTRY2021Transport signatures of temperature-induced chemical potential shift and Lifshitz transition in layered type-II Weyl semimetal TaIrTe4
Oleg Yazyev, Quansheng Wu, Meng Yang
Temperature-induced Lifshitz transitions have been identified in several materials. Their chemical potential shows a substantial shift with changing temperature. The common feature of these materials is the coexistence of electron and hole pockets in the v ...
IOP PUBLISHING LTD2021Decoupling the role of inertia, friction and cohesion in dense granular avalanche pressure build‐up on obstacles
Christophe Ancey, Johan Alexandre Philippe Gaume, Michael Lukas Kyburz
Understanding the physical processes involved in snow avalanche‐obstacle interaction is essential to be able to estimate the pressure exerted on structures. Although avalanche impact pressure has been measured in field experiments for decades, the underlyi ...
2020Mitigation of Vacuum and Illumination-Induced Degradation in Perovskite Solar Cells by Structure Engineering
Quentin Thomas Jeangros, Fan Fu, Shih-Chi Yang, Yan Jiang
y High specific power, high stowed packing efficiency, low processing cost, and high tolerance against environmental threats (high energy and charged particle radiation) make perovskite solar cell (PSC) a promising candidate for power generation in space. ...
CELL PRESS2020