Results 11 to 20 of about 567,695 (294)

Electromagnetic flowmeters in multiphase flows [PDF]

open access: yes, 1993
The response of an Electromagnetic Flowmeter to a secondary, nonconducting phase in a continuous conducting phase is investigated. Experiments are carried out on a commercial 2" Foxboro flowmeter with sinusoidal mains field excitation and point ...
Krafft, Rainer
core   +7 more sources

Enhancement of Power Harvesting by Tuning Moment of Inertia [PDF]

open access: yesPort Said Engineering Research Journal, 2021
This investigation examines the design of an innovative independent mechanism for tuning the resonant frequency and thus generate greater amounts of energy.
Shahenda Mohamed, Ebtisam Abdel-Gwad
doaj   +1 more source

Electromagnetic measurement of bubble velocity in two-phase dielectric fluid flow [PDF]

open access: yes, 1997
This thesis deals with the theoretical and experimental investigation of two-phase flow for a dielectric liquid electromagneticf lowmeter. So far only limited investigationsi nto the possibleu se of electromagneticf lowmeters for multiphasef low ...
Donhauser, Norbert
core   +7 more sources

Solenoids Electromagnets and Electromagnetic Windings [PDF]

open access: yesNature, 1911
THIS is a book dealing generally with electromagnets, and so far as the author records experimental results will be found useful, but the explanation of the experiments is not given as fully as is desirable in order that the reader may thoroughly understand the theoretical deductions, and the latter themselves are not always trustworthy. We find a good
Kapp, Gisbert   +1 more
openaire   +1 more source

Computation of transient electromagnetic fields due to switching in high voltage substations [PDF]

open access: yes, 2010
Switching operations of circuit breakers and disconnect switches radiate transient electromagnetic fields within high-voltage substations. The generated fields may interfere and disrupt normal operations of electronic equipment.
Siew, W.H., Musa, B.U., Judd, M.D.
core   +4 more sources

On Maxwell Electrodynamics in Multi-Dimensional Spaces

open access: yesUniverse, 2021
The governing equations of Maxwell electrodynamics in multi-dimensional spaces are derived from the variational principle of least action, which is applied to the action function of the electromagnetic field.
Alexei M. Frolov
doaj   +1 more source

Dynamic Modeling and Investigation of a Tunable Vortex Bladeless Wind Turbine

open access: yesEnergies, 2022
This paper investigates the dynamics of an electromagnetic vortex bladeless wind turbine (VBWT) with a tunable mechanism. The tunable mechanism comprises a progressive-rate spring that is attached to an oscillating magnet inside an electromagnetic coil ...
Issam Bahadur
doaj   +1 more source

Numerical Simulation-Based Investigation of the Limits of Different Quasistatic Models

open access: yesApplied Sciences, 2021
The modeling of the capacitive phenomena, including the inductive effects becomes critical, especially in the case of a power converter with high switching frequencies, supplying an electrical device.
Houssein Taha   +5 more
doaj   +1 more source

VIBRATION ENERGY HARVESTING TECHNIQUE: A COMPREHENSIVE REVIEW [PDF]

open access: yesEngineering Heritage Journal, 2020
In order to minimize the requirement of external power source and maintenance for electric devices such as wireless sensor networks, the energy harvesting technique based on vibrations has been a dynamic field of studying interest over past years ...
Nik Fakhri Nek Daud, Ruzlaini Ghoni
doaj   +1 more source

Estimation of Electromagnetic Properties for 2D Inhomogeneous Media Using Neural Networks [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2022
Electromagnetic measurements are widely used to gain information about an object through interaction of electromagnetic fields with the physical properties of this object.
Mohamed Elkattan, Aladin H. Kamel
doaj   +1 more source

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