Results 61 to 70 of about 385,363 (284)

Einstein–Cartan–Dirac gravity with U(1) symmetry breaking

European Physical Journal C: Particles and Fields, 2019
Einstein–Cartan theory is an extension of the standard formulation of General Relativity where torsion (the antisymmetric part of the affine connection) is non-vanishing.
Francisco Cabral, Francisco S. N. Lobo, Diego Rubiera-Garcia   +2 more
doaj   +1 more source

Electromagnetic field in fiber-reinforced micropolar thermoelastic medium using four models

Journal of Ocean Engineering and Science, 2020
This paper aimed to study the effect of electromagnetic field on general model of the equations of the generalized thermoelasticity reinforcement of the deformation of a micropolar generalized thermoelastic medium. The phenomenon is in the context of the
S.M. Abo-Dahab, A.M. Abd-Alla, A.A. Kilany   +2 more
doaj   +1 more source

Dissipative Van der Waals interaction between a small particle and a metal surface

, 2006
We use a general theory of the fluctuating electromagnetic field to calculate the friction force acting on a small neutral particle, e.g., a physisorbed molecule, or a nanoscale object with arbitrary dispersive and absorptive dielectric properties ...
A. A. Kyasov, A. Dayo, A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. I. Volokitin, A. Majumdar, B. C. Stipe, B. Gotsmann, B. N. J. Persson, B. N. J. Persson, B. N. J. Persson, B. N. J. Persson, D. Polder, E. M. Lifshitz, E. T. Watts, G. V. Dedkov, I. Dorofeyev, I. Dorofeyev, J. B. Pendry, J. B. Pendry, M. L. Levin, P. Johansson, S. Tomassone, T. J. Gramila, T. J. Gramila, T. J. Gramila, T. J. Gramila, U. Hartmann, U. Hartmann   +31 more
core   +1 more source

MXene/PEDOT Functional Coatings on Flexible Microelectrode Arrays for Multianalyte In Vivo Neurochemical Sensing and Electrophysiology

Advanced Functional Materials, EarlyView.
A MXene/PEDOT coating enables multimodal functionality and dual‐analyte detection of dopamine and serotonin in flexible microelectrode arrays while enhancing electrophysiological recording quality. The anti‐fouling, low‐impedance interface overcomes key limitations of conventional coatings, providing a robust and versatile platform to investigate the ...
Ilaria Gatti, Karamullah Eisawi, Umisha Siwakoti, Greyson Jadwin, Ashmita Sigdel, Michela Chiappalone, Deepak Kumbhare, Michael Naguib, Elisa Castagnola   +8 more
wiley   +1 more source

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

Theory of electromagnetic wave generation via a beam-plasma antenna [PDF]

AIP Conference Proceedings, 2016
In this work, we propose a theory describing generation of electromagnetic waves in a thin beam-plasma system with a characteristic transverse size comparable with the radiation wavelength. Such a theory can be useful for the description of the processes responsible for EM emission in beam-plasma experiments at the GOL-3 multi mirror trap.
E. P. Volchok, I. V. Timofeev, V. V. Annenkov   +2 more
openaire   +1 more source

Soft Neural Interfaces for Circuit‐Level Analysis of Magnetogenetic Deep Brain Stimulation in Parkinson's Disease Models

Advanced Healthcare Materials, EarlyView.
ABSTRACT Magnetogenetic deep brain stimulation (MG‐DBS) represents a wireless neuromodulation that has demonstrated long‐lasting behavioral benefits in Parkinson's disease models. However, the circuit‐level mechanisms underlying these therapeutic effects have remained uncharacterized due to limitations of conventional neural interfaces.
Jakyoung Lee, Yeongdo Lee, Enji Kim, Hunkyu Seo, Myoungjae Oh, Hanho Joo, Somin Lee, Jae‐Hyun Lee, Hyun Ho Jung, Minsuk Kwak, Jang‐Ung Park   +10 more
wiley   +1 more source

Quantum theory of the third-order nonlinear electrodynamic effects in graphene

, 2016
The linear energy dispersion of graphene electrons leads to a strongly nonlinear electromagnetic response of this material. We develop a general quantum theory of the third-order nonlinear local dynamic conductivity of graphene $\sigma_{\alpha\beta\gamma\
Mikhailov, S. A.
core   +1 more source

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source

Emergent Abelian Gauge Fields from Noncommutative Gravity

Symmetry, Integrability and Geometry: Methods and Applications, 2010
We construct exact solutions to noncommutative gravity following the formulation of Chamseddine and show that they are in general accompanied by Abelian gauge fields which are first order in the noncommutative scale.
Allen Stern
doaj   +1 more source