Results 21 to 30 of about 10,575,338 (382)

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

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

Recent Progress on Electromagnetic Field Measurement Based on Optical Sensors

open access: yesItalian National Conference on Sensors, 2019
Electromagnetic field sensors are widely used in various areas. In recent years, great progress has been made in the optical sensing technique for electromagnetic field measurement, and varieties of corresponding sensors have been proposed.
Jun Peng   +5 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

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

Constraints of Using Conductive Screen-Printing for Chipless RFID Tags with Enhanced RCS Response

open access: yesApplied Sciences, 2022
The analysis and experimental verification of the properties of four types of chipless RFID tags with an increased RCS response level designed and fabricated by conductive screen-printing using silver paste on foil and paper substrates was performed. The
Milan Svanda, Jan Machac, Milan Polivka
doaj   +1 more source

Effect of an electromagnetic field on the spectra and elliptic flow of particles [PDF]

open access: yesPhys.Rev. C95 (2017) no.5,054912, 2017
In 2+1 dimensions, the evolution of flow under the influence of an external electromagnetic field is simulated. The external electromagnetic field is exponentially decaying with time. Under the same initial conditions, flow evolution with and without the external electromagnetic field is compared.
arxiv   +1 more source

Computation of Electromagnetic Field and Complex Materials Interaction [PDF]

open access: yes, 2018
We develop a method to calculate the electromagnetic field distribution in complex materials. The system contains multiple phases with different electrical and magnetic properties and also contains multiple components which can diffuse around to affect ...
Qin, Rongshan
core   +1 more source

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