Results 31 to 40 of about 6,657 (162)

Solar cycle variations in equatorial ionospheric zonal electric fields near sunrise

open access: yesEarth and Planetary Physics, 2023
In this study, we investigate the solar cycle dependence of the sunrise ionospheric zonal electric fields at the equator under geomagnetically quiet conditions.
JunJie Chen   +3 more
doaj   +1 more source

Integrated fiber optical receiver reducing the gap to the quantum limit

open access: yesScientific Reports, 2017
Experimental results of a single-photon avalanche diode (SPAD) based optical fiber receiver integrated in 0.35 µm PIN-photodiode CMOS technology are presented. To cope with the parasitic effects of SPADs an array of four receivers is implemented.
Horst Zimmermann   +3 more
doaj   +1 more source

Electrodynamics of Axial-Flow Rotary Blood Pumps

open access: yesIEEE Access, 2021
In this work, electric machine of implantable rotary blood pumps (RBPs) of axial-flow type was theoretically investigated. Electromagnetic coupling of rotor and stator in axial-flow RBPs was described with the Maxwell’s equations of the classical ...
Igor V. Nesterenko   +8 more
doaj   +1 more source

Active Electric Dipole Energy Sources: Transduction via Electric Scalar and Vector Potentials

open access: yesSensors, 2022
The creation of electromagnetic energy may be realised by engineering a device with a method of transduction, which allows an external energy source, such as mechanical, chemical, nuclear, etc., to be impressed into the electromagnetic system through a ...
Michael E. Tobar   +2 more
doaj   +1 more source

A Geometric Model in 3+1D Space-Time for Electrodynamic Phenomena

open access: yesUniverse, 2022
With the idea to find geometric formulations of particle physics we investigate the predictions of a three-dimensional generalization of the Sine-Gordon model, very close to the Skyrme model and to the Wu-Yang description of Dirac monopoles.
Manfried Faber
doaj   +1 more source

Chirality in Optical Trapping and Optical Binding

open access: yesPhotonics, 2015
Optical trapping is a well-established technique that is increasingly used on biological substances and nanostructures. Chirality, the property of objects that differ from their mirror image, is also of significance in such fields, and a subject of much ...
David S. Bradshaw   +3 more
doaj   +1 more source

A Novel Simple Format of Maxwell’s Equations in SI Units

open access: yesIEEE Access, 2021
In the International System of Units (SI), distinct physical dimensions were assigned to the electric ( $E$ ) and magnetic ( $H$ ) fields as volt-per-meter and ampere-per-meter, respectively. To save the dimensional balance in the standard Maxwell’
Oleg A. Tretyakov, Fatih Erden
doaj   +1 more source

Maxwell-Chern-Simons-Higgs theory

open access: yesActa Polytechnica, 2022
We consider the three dimensional electrodynamics described by a complex scalar field coupled with the U(1) gauge field in the presence of a Maxwell term, a Chern-Simons term and the Higgs potential.
Usha Kulshreshtha   +2 more
doaj   +1 more source

Multi-Channel PWM Heater Control Chip in 0.18 μm High-Voltage CMOS for a Quantum Simulator

open access: yesIEEE Photonics Journal
A circuit to control heating resistors with a pulse-width modulated (PWM) signal for a photonic quantum simulator is introduced. The output voltage is switched on for a changeable specified time and switched off for the rest of the period.
Christoph Ribisch   +5 more
doaj   +1 more source

Forces on Particles in Time-Varying Magnetic Fields

open access: yesKONA Powder and Particle Journal, 2017
Electrodynamic sorting is a process that sorts metals based on conductivity, density, and geometry. The process works by inducing electrical eddy currents within particles placed in a time-varying magnetic field.
Jaclyn D. Ray   +3 more
doaj   +1 more source

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