Results 31 to 40 of about 2,483,253 (348)

Cosmological magnetic fields [PDF]

open access: yesJournal of Physics: Conference Series, 2009
Magnetic fields are observed on nearly all scales in the universe, from stars and galaxies upto galaxy clusters and even beyond. The origin of cosmic magnetic fields is still an open question, however a large class of models puts its origin in the very early universe. A magnetic dynamo amplifying an initial seed magnetic field could explain the present
openaire   +2 more sources

An Arg/Ala-rich helix in the N-terminal region of M. tuberculosis FtsQ is a potential membrane anchor of the Z-ring

open access: yesCommunications Biology, 2023
The disordered cytoplasmic region of Mtb FtsQ can interact with three partners – the upstream acidic residues in solution, the inner membrane surface, and the GTPase domain of FtsZ – suggesting its role in cell division and as a drug target.
Sean T. Smrt   +4 more
doaj   +1 more source

Single reconstructed Fermi surface pocket in an underdoped single-layer cuprate superconductor

open access: yesNature Communications, 2016
The identification of broken symmetry states in underdoped cuprate superconductors via quantum oscillation measurements remains inconclusive. Here, Chan et al.
M. K. Chan   +6 more
doaj   +1 more source

The importance of coil conductivity and eddy current effects in the analysis of electromagnetic forming process

open access: yesHigh Voltage, 2022
Coil design and performance analysis are critical for the electromagnetic forming (EMF) process. However, previous studies have paid little attention to the coil conductivity, and the influence of eddy current effects in coil conductors on the forming ...
Quanliang Cao   +6 more
doaj   +1 more source

Creation of magnetic spots at the neutron star surface [PDF]

open access: yes, 2014
According to the partially screened gap scenario, an efficient electron-positron pair creation, a general precondition of radio-pulsar activity, relies on the existence of magnetic spots, i.e., local concentrations of strong and small scale magnetic ...
Geppert, U., Viganò, D.
core   +2 more sources

The Galactic Magnetic Field

open access: yes, 2012
With this Letter, we complete our model of the Galactic magnetic field (GMF), by using the WMAP7 22 GHz total synchrotron intensity map and our earlier results to obtain a 13-parameter model of the Galactic random field, and to determine the strength of ...
Farrar, Glennys R., Jansson, Ronnie
core   +1 more source

Realisation of the reconfigurable pulsed high magnetic field facility and its scientific application at Wuhan National Pulsed High Magnetic Field Centre

open access: yesHigh Voltage, 2023
To generate arbitrary shape magnetic field waveforms for advanced scientific research, a reconfigurable pulsed high magnetic field facility (PHMFF) was developed at Wuhan National Pulsed High Magnetic Field Centre (WHMFC).
Jianfeng Xie   +5 more
doaj   +1 more source

Compact Magnetic Force Microscope (MFM) System in a 12 T Cryogen-Free Superconducting Magnet

open access: yesMicromachines, 2022
Magnetic Force Microscopy (MFM) is among the best techniques for examining and assessing local magnetic characteristics in surface structures at scales and sizes.
Asim Abas   +8 more
doaj   +1 more source

RC-circuit-like dynamic characteristic of the magnetic domain wall in ferromagnetic nanowires

open access: yes, 2015
We have investigated dynamic behaviors of the magnetic domain wall under perpendicular magnetic field pulses in ferromagnetic nanowires using micromagnetic simulations.
Cheng Chen   +4 more
core   +1 more source

Near-IR imaging polarimetry toward a bright-rimmed cloud: Magnetic field in SFO 74 [PDF]

open access: yes, 2014
We have made near-infrared (JHKs) imaging polarimetry of a bright-rimmed cloud (SFO 74). The polarization vector maps clearly show that the magnetic field in the layer just behind the bright rim is running along the rim, quite different from its ambient ...
Chini   +25 more
core   +2 more sources

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