Results 101 to 110 of about 2,158,419 (305)

Efficient Autonomous Dew Water Harvesting by Laser Micropatterning: Superhydrophilic and High Emissivity Robust Grooved Metallic Surfaces Enabling Filmwise Condensation and Radiative Cooling

Advanced Materials, EarlyView.
Laser micropatterning is presented as a promising technology in the search for autonomous dew water harvesting materials. Laser‐grooved metallic surfaces achieve simultaneously high infrared emissivity and superhydrophilicity, which gives them self‐cooling properties under atmospheric radiative deficit and the ability to condense water in an efficient ...
Pablo Pou‐Álvarez, Anne Mongruel, Nicolas Lavielle, Antonio Riveiro, Tarik Bourouina, Laurent Royon, Juan Pou, Daniel Beysens   +7 more
wiley   +1 more source

Pauli–Villars regularization elucidated in Bopp–Podolsky’s generalized electrodynamics

European Physical Journal C: Particles and Fields, 2019
We discuss an inherent Pauli–Villars regularization in Bopp–Podolsky’s generalized electrodynamics. Introducing gauge-fixing terms for Bopp–Podolsky’s generalized electrodynamic action, we realize a unique feature for the corresponding photon propagator ...
Chueng-Ryong Ji, Alfredo Takashi Suzuki, Jorge Henrique Sales, Ronaldo Thibes   +3 more
doaj   +1 more source

Electromagnetic energy, momentum and forces in a dielectric medium with losses [PDF]

arXiv, 2017
From the energy-momentum tensors of the electromagnetic field and the mechanical energy-momentum, the equations of energy conservation and balance of electromagnetic and mechanical forces are obtained.
arxiv  

A Classical Field Theory of Gravity and Electromagnetism

, 2014
A classical field theory of gravity and electromagnetism is developed. The starting point of the theory is the Maxwell equations which are directly tied to the Riemann-Christoffel curvature tensor.
R. Beach
semanticscholar   +1 more source

Enhanced Deformability Through Distributed Buckling in Stiff Quasicrystalline Architected Materials

Advanced Materials, EarlyView.
Quasi‐periodic metamaterials combine stiffness and large‐strain deformability, overcoming limitations of traditional stretching‐dominated periodic designs that are prone to global buckling instabilities and catastrophic layer collapses. By leveraging non‐uniform force chains, they achieve high isotropic stiffness, stable deformation, and remarkable ...
Matheus I. N. Rosa, Konstantinos Karapiperis, Kaoutar Radi, Elias Pescialli, Dennis M. Kochmann   +4 more
wiley   +1 more source

Multi‐Scale Modeling of a 3D Soft Magnetoelectric Patch for Wireless Nerve Stimulation

Advanced Materials Interfaces, EarlyView.
Core‐shell, magnetoelectric nanoparticles (MENPs) can serve as wireless electric nano‐sources, thanks to their ability to generate high levels of electricity, when stimulated by a human‐safe external magnetic field. By combining MENPs with soft, biocompatible polymeric matrices and optimizing its composite configuration and electrical behavior via ...
Giulia Suarato, Alessandra Marrella, Anna Tommasini, Serena Fiocchi, Emma Chiaramello, Marta Parazzini, Paolo Ravazzani   +6 more
wiley   +1 more source

Classical observables using exponentiated spin factors: electromagnetic scattering

Journal of High Energy Physics
In [1], the authors argued that the Newman-Janis algorithm on the space of classical solutions in general relativity and electromagnetism could be used in the space of scattering amplitudes to map an amplitude with external scalar states to an amplitude ...
Samim Akhtar, Arkajyoti Manna, Akavoor Manu   +2 more
doaj   +1 more source

Path entanglement of surface plasmons

New Journal of Physics, 2015
Metals can sustain traveling electromagnetic waves at their surfaces supported by the collective oscillations of their free electrons in unison. Remarkably, classical electromagnetism captures the essential physics of these ‘surface plasma’ waves using ...
James S Fakonas, Anna Mitskovets, Harry A Atwater   +2 more
doaj   +1 more source

On the physical meaning of the gauge conditions of Classical Electromagnetism : the hydrodynamics analogue viewpoint [PDF]

Annales de la Fondation Louis de Broglie 28, N02 (2003) 261-269, 2005
Based on an analogy between Fluid Mechanics and Electromagnetism, we claim that the gauge conditions of Classical Electromagnetism are not equivalent contrary to the common belief. These "gauges" are usually considered as mathematical conditions that one must specify in order to solve any electromagnetic problem.
arxiv  

Ontological Clarity via Canonical Presentation: Electromagnetism and the Aharonov–Bohm Effect

Entropy, 2018
Quantum physics demands some radical revision of our fundamental beliefs about physical reality. We know that because there are certain verified physical phenomena—two-slit interference, the disappearance of interference upon monitoring, violations of ...
T. Maudlin
semanticscholar   +1 more source