Results 121 to 130 of about 1,311,435 (291)

Permanent magnets including undulators and wigglers

open access: yes, 2011
After a few historic remarks on magnetic materials we introduce the basic definitions related to permanent magnets. The magnetic properties of the most common materials are reviewed and the production processes are described.
Bahrdt, J.
core   +1 more source

Analysis and Optimization of a Moving Magnet Permanent Magnet Synchronous Planar Motor with Split Halbach Arrays

open access: yesEnergies
This paper investigates an improved permanent magnet synchronous planar motor (PMSPM) featuring a moving magnet configuration to enhance thrust density and positioning accuracy.
Ronglu Wang   +4 more
doaj   +1 more source

Three-Dimensional Modelling and Validation for the Ultra-High-Speed EDS Rocket Sled with PM Halbach Array

open access: yesActuators
The ultra-high-speed rocket sled plays an important role in the ground test by simulating altitude flight. Rocket sleds can only be lifted for a short time with thermally uninsulated superconductors moving among an eddy-current-induced copper array.
Yongpan Hu   +3 more
doaj   +1 more source

Radial Halbach Magnetic Bearings [PDF]

open access: yes
Radial Halbach magnetic bearings have been investigated as part of an effort to develop increasingly reliable noncontact bearings for future high-speed rotary machines that may be used in such applications as aircraft, industrial, and land-vehicle power ...
Eichenberg, Dennis J.   +2 more
core   +1 more source

How the Magnetization Angle of a Linear Halbach Array Influences Particle Steering in Magnetic Drug Targeting - A Systematic Evaluation and Optimization

open access: yesSymmetry
The main challenge in magnetic drug targeting lies in steering the magnetic particles, especially in deeper body layers. For this purpose, linear Halbach arrays are currently in focus.
A. Thalmayer   +2 more
semanticscholar   +1 more source

Resistojet propulsion for large spacecraft systems [PDF]

open access: yes
Resistojet propulsion systems have characteristics that are ideally suited for the on-orbit and primary propulsion requirements of large spacecraft systems.
Mirtich, M. J.
core   +1 more source

Robust High-Dynamic-Range Vector Magnetometry via Nitrogen-Vacancy Centers in Diamond

open access: yes, 2018
We demonstrate a robust, scale-factor-free vector magnetometer, which uses a closed-loop frequency-locking scheme to simultaneously track Zeeman-split resonance pairs of nitrogen-vacancy (NV) centers in diamond.
Budker D.   +6 more
core   +1 more source

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