Results 11 to 20 of about 9,618,790 (361)

One-Dimensional Magnetic FeCoNi Alloy Toward Low-Frequency Electromagnetic Wave Absorption

open access: yesNano-Micro Letters, 2022
A novel FeCoNi carbon fiber (FeCoNi/CF) is obtained through an improved electrospinning technology, which greatly endows the fiber with strong magnetic property.
Bintong Yang   +9 more
semanticscholar   +1 more source

Universal electromagnetic fields [PDF]

open access: yesClassical and Quantum Gravity, 2018
We study universal electromagnetic (test) fields, i.e., p-forms fields F that solve simultaneously (virtually) any generalized electrodynamics (containing arbitrary powers and derivatives of F in the field equations) in n spacetime dimensions. One of the main results is a sufficient condition: any null F that solves Maxwell's equations in a Kundt ...
Vojtěch Pravda   +3 more
openaire   +5 more sources

Service States and Reliability Analysis of Low-Voltage Circuit Breaker Overload Protection Considering the Safety Margin

open access: yesApplied Sciences, 2023
The performance of low-voltage circuit breaker overload protection degrades slowly during service, and the service state cannot be simply described as a normal state or a fault state.
Kui Li, Xianfeng Peng, Bokai Hu
doaj   +1 more source

Transmitters for Combined Radio Over a Fiber and Outdoor Millimeter-Wave System at 25 GHz

open access: yesIEEE Photonics Journal, 2020
In the modern wireless networks, millimeter-wave radio-frequency (RF) bands are becoming more attractive as they provide larger bandwidth and higher data rates than the today-used systems operating at frequencies below 6 GHz.
Jan Bohata   +4 more
doaj   +1 more source

Electromagnetic fields in jets [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2007
8 pages, 5 figures.
Donald Lynden-Bell, Blake D. Sherwin
openaire   +4 more sources

Geometric entropy and edge modes of the electromagnetic field [PDF]

open access: yes, 2015
We calculate the vacuum entanglement entropy of Maxwell theory in a class of curved spacetimes by Kaluza-Klein reduction of the theory onto a two-dimensional base manifold.
William Donnelly, Aron C. Wall
semanticscholar   +1 more source

Possible Effects of Radiofrequency Electromagnetic Field Exposure on Central Nerve System

open access: yesBiomolecules & Therapeutics, 2018
Technological advances of mankind, through the development of electrical and communication technologies, have resulted in the exposure to artificial electromagnetic fields (EMF).
J. H. Kim   +4 more
semanticscholar   +1 more source

Electric field correlation measurements on the electromagnetic vacuum state [PDF]

open access: yesNature, 2018
Quantum mechanics ascribes to the ground state of the electromagnetic radiation1 zero-point electric field fluctuations that permeate empty space at all frequencies.
Ileana-Cristina Benea-Chelmus   +3 more
semanticscholar   +1 more source

Ground‐State Chemical Reactivity under Vibrational Coupling to the Vacuum Electromagnetic Field

open access: yesAngewandte Chemie, 2016
The ground‐state deprotection of a simple alkynylsilane is studied under vibrational strong coupling to the zero‐point fluctuations, or vacuum electromagnetic field, of a resonant IR microfluidic cavity. The reaction rate decreased by a factor of up to 5.
Anoop Thomas   +11 more
semanticscholar   +1 more source

Electromagnetic field and cosmic censorship [PDF]

open access: yes, 2014
We construct a gedanken experiment in which an extremal Kerr black hole interacts with a test electromagnetic field. Using Teukolsky’s solutions for electromagnetic perturbations in Kerr spacetime, and the conservation laws imposed by the energy momentum
Koray Düztaş
semanticscholar   +2 more sources

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