Results 21 to 30 of about 1,113,144 (380)

Research of changes in electromagnetic parameters in controlled asynchronous special electric drives

open access: yesОмский научный вестник, 2023
The article researches the changes in the electromagnetic parameters of controlled asynchronous special electric drives. Special asynchronous electric drives are controlled cascade electric drives of cylindrical and axial designs.
V. Yu. Karandey   +3 more
doaj   +1 more source

Assessing the Electromagnetic Fields Generated By a Radiofrequency MRI Body Coil at 64 MHz: Defeaturing Versus Accuracy

open access: greenIEEE Transactions on Biomedical Engineering, 2015
Elena Lucano   +8 more
openalex   +3 more sources

Electromagnetic Force Distribution and Axial Deformation Uniformity Analysis of Dual-Coil Electromagnetic Tube Compression Method

open access: yesIEEE Access, 2020
In the conventional electromagnetic tube expansion, axial distribution of the electromagnetic force is not uniform along the workpiece. This results in uneven axial deformation of the deformed tube and restricts the full industrial implementation of this
Li Qiu   +5 more
doaj   +1 more source

Coil Gun Electromagnetic Launcher (EML) System with Multi-stage Electromagnetic Coils

open access: yesJournal of Magnetics, 2013
An electromagnetic launcher (EML) system accelerates and launches a projectile by converting electric energy into kinetic energy. There are two types of EML systems under development: the rail gun and the coil gun. A railgun comprises a pair of parallel conducting rails, along which a sliding armature is accelerated by the electromagnetic effects of a ...
Su-Jeong Lee   +3 more
openaire   +2 more sources

Performance Analysis of Acceleration and Inertial Force of Electromagnetic Suspension Inertial Stabilizer

open access: yesApplied Sciences, 2022
In this paper, the structural characteristics of electromagnetic suspension (EMS) inertial stabilizers are analyzed firstly, and then a mechanical analysis of a single mass block and double mass block is carried out.
Sumei Gao, Longxiang Xu, Chaowu Jin
doaj   +1 more source

Opening characteristics of high current fast switch for DC circuit breaker

open access: yes电力工程技术, 2023
The stability of opening process of fast mechanical switch is the key factor affecting the breaking performance of DC circuit breaker. Based on the finite element method, the multi-field coupling calculation of electromagnetic, thermal and momentum is ...
LAN Jian, FENG Ying, WANG Chengyu
doaj   +1 more source

Electromagnetic Imaging with Atomic Magnetometers: A Novel Approach to Security and Surveillance [PDF]

open access: yes, 2016
We describe our research programme on the use of atomic magnetometers to detect conductive objects via electromagnetic induction. The extreme sensitivity of atomic magnetometers at low frequencies, up to seven orders of magnitude higher than a coil-based
Deans, Cameron   +3 more
core   +2 more sources

Parametric Simulation Analysis of the Electromagnetic Force Distribution and Formability of Tube Electromagnetic Bulging Based on Auxiliary Coil

open access: yesIEEE Access, 2020
Tube electromagnetic bulging has been given much attention due to its superior advantages in the field of light alloy processing. However, the conventional tube electromagnetic bulging process exhibits some critical issues that restrict its wide ...
Li Qiu   +7 more
doaj   +1 more source

Optimal design of electromagnetic metamaterial electronic device sensor with specific performance based on multivariate big data fusion

open access: yesJournal of Experimental Nanoscience, 2023
As the basic unit structure of electromagnetic metamaterial, the structure size of open resonant ring directly determines the constitutive parameters of SRR (dielectric constant ε and permeability μ). In order to improve the energy exchange efficiency of
Sheng Bi
doaj   +1 more source

An optimized BSCCO/Ag resonator coil for utility use [PDF]

open access: yes, 2000
AC coils made with BSCCO-2223/Ag tapes and operating in liquid nitrogen have a potential for power related applications, e.g., inductors, transformers and current limiters.
Broeren, B.   +10 more
core   +2 more sources

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