Results 1 to 10 of about 1,207,195 (174)

The quantum vacuum at the foundations of classical electrodynamics [PDF]

open access: yes, 2010
In the classical theory of electromagnetism, the permittivity and the permeability of free space are constants whose magnitudes do not seem to possess any deeper physical meaning.
A. S. Villar   +18 more
core   +4 more sources

In-depth experimental search for a coupling between gravity and electromagnetism with steady fields [PDF]

open access: yesScientific Reports
Any means to control gravity like electromagnetism is currently out of reach by many orders of magnitude even under extreme laboratory conditions. Some often poorly executed experiments or pseudoscience theories appear from time to time claiming for ...
M. Tajmar, M. Kößling, O. Neunzig
doaj   +2 more sources

Impacts of magnetic permeability on electromagnetic data collected in settings with steel-cased wells [PDF]

open access: yesGeophysical Journal International, 2022
Electromagnetic methods are increasingly being applied in settings with steel infrastructure. These include applications such as monitoring of CO2 sequestration or even assessing the integrity of a wellbore. In this paper, we examine the impacts of the
L. Heagy, D. Oldenburg
semanticscholar   +1 more source

The Comparison of Microwave Reflectance of Graphite and Reduced Graphene Oxide Used for Electronic Devices Protection

open access: yesEnergies, 2022
This work presents the investigation of graphite and reduced graphene oxide (RGO) reflectance as an important parameter for electronic devices’ protection.
Roman Kubacki   +3 more
doaj   +1 more source

Simulation of Magnetotargeting of Medicines Based on the Calculation of Permeability of Human Tissues by the Electromagnetic Field

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2023
Analysis of studies in the field of targeted delivery of drugs, genes and stem cells showed a low level of accuracy of both applied and practical research in this area.
A. V. Churakov   +2 more
doaj   +1 more source

Fresnel drag in space–time-modulated metamaterials [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance Space–time-dependent electromagnetic media, whose constitutive parameters are directionally biased in space and time, are a topic of current enormous interest across physics.
P. Huidobro   +4 more
semanticscholar   +1 more source

Negative index materials: at the frontier of macroscopic electromagnetism

open access: yesComptes Rendus. Physique, 2020
The notions of negative refraction and negative index, introduced by V. Veselago more than 50 years ago, have appeared beyond the frontiers of macroscopic electromagnetism and purely formal during 30 years, until the work of J.
Gralak, Boris
doaj   +1 more source

18 GHz electromagnetic field induces permeability of Gram-positive cocci [PDF]

open access: yesScientific Reports, 2015
AbstractThe effect of electromagnetic field (EMF) exposures at the microwave (MW) frequency of 18 GHz, on four cocci, Planococcus maritimus KMM 3738, Staphylococcus aureus CIP 65.8T, S. aureus ATCC 25923 and S. epidermidis ATCC 14990T, was investigated.
Nguyen, The Hong Phong   +6 more
openaire   +3 more sources

Determination of the Magnetic Permeability, Electrical Conductivity, and Thickness of Ferrite Metallic Plates Using a Multifrequency Electromagnetic Sensing System [PDF]

open access: yesIEEE Transactions on Industrial Informatics, 2019
In this paper, an inverse method was developed which can, in principle, reconstruct arbitrary permeability, conductivity, thickness, and lift-off with a multifrequency electromagnetic sensor from inductance spectroscopic measurements.
Mingyang Lu   +4 more
semanticscholar   +1 more source

DISCONTINUOUS GALERKIN SPECTRAL ELEMENT METHOD TO COMPUTE REFLECTION AND TRANSMISSION OF ELECTROMAGNETIC WAVES

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2018
Modeling wave reflection and transmission is important for a diversity of applications in physics and engineering. Examples can be found in acoustics and electromagnetism. Computational wave propagation requires high order accuracy both in space and time
MÓNICA MESA MAZO   +2 more
doaj   +1 more source

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