Results 261 to 270 of about 54,476 (305)

Tweezing of Magnetic and Non‐Magnetic Objects with Magnetic Fields

Advanced Materials, 2017
Although strong magnetic fields cannot be conveniently “focused” like light, modern microfabrication techniques enable preparation of microstructures with which the field gradients – and resulting magnetic forces – can be localized to very small dimensions.
Timonen, Jaakko V I, Grzybowski, Bartosz, A.   +2 more
openaire   +3 more sources

Magnetism without magnets

IEEE Spectrum, 1991
The earliest discoveries of electromagnetism are briefly recounted. The work of Volta (primary battery), Oersted (generating a magnetic field by a current) and Ampere (solenoid) is described. >
openaire   +1 more source

Persistent magnetic coherence in magnets

Nature Materials
When excited, the magnetization in a magnet precesses around the field in an anticlockwise manner on a timescale governed by viscous magnetization damping, after which any information carried by the initial actuation seems to be lost. This damping appears to be a fundamental bottleneck for the use of magnets in information processing.
T. Makiuchi, T. Hioki, H. Shimizu, K. Hoshi, M. Elyasi, K. Yamamoto, N. Yokoi, A. A. Serga, B. Hillebrands, G. E. W. Bauer, E. Saitoh   +10 more
openaire   +2 more sources

Magnetic Neurosurgery

Stereotactic and Functional Neurosurgery, 1996
Because of the complex shape of many brain structures, the ideal brain probe would be highly flexible and give the neurosurgeon the ability to independently and precisely control movement of the probe tip. A magnetic surgery system has been developed that implements this concept.
M A, Howard, M S, Grady, R C, Ritter, G T, Gillies, W C, Broaddus, R G, Dacey   +5 more
openaire   +2 more sources

Magnetic Monopoles in a Magnetic Universe

1984
Large scale coherence of a cosmological magnetic field, independently of its strength, is incompatible with any detectable monopole flux. Consequently, the controversial evidence1 of a coherent magnetic field up to a redshift z ≃ 2 infers the most severe cosmological bound on present number density (no) and fluxes (F) of magnetic monopoles: \( n_O < 2 \
openaire   +2 more sources

Magnetism

Science, 1964
S H, Charap, R F, Elfant
openaire   +2 more sources

Hard magnetics in ultra-soft magnetorheological elastomers enhance fracture toughness and delay crack propagation

Journal of the Mechanics and Physics of Solids, 2023
Miguel Angel Moreno-Mateos, Mokarram Hossain, Paul Steinmann   +2 more
exaly  

Magnetic

Medical Humanities, 2016
openaire   +2 more sources

Integrated Magnetics Design for a Three-Phase Differential-Mode Rectifier

IEEE Transactions on Power Electronics, 2021
Moien Mohamadi, Sudip Kumar Mazumder, Nikhil Kumar   +2 more
exaly  

Magnets and Magnetic Field Measurements

Science, 1955
A L, Bloom, M E, Packard
openaire   +2 more sources