Results 11 to 20 of about 372,553 (214)

Magnetic Fields of F-Type Stars [PDF]

open access: yes, 2022
Magnetic fields are an observable feature of many stars, with warm, F-type stars of interest in searching for the transition from the fossil fields in hot stars to dynamos in cool stars driven by convection zones.
Seach, John M.
core   +1 more source

The Sun's global photospheric and coronal magnetic fields : observations and models [PDF]

open access: yes, 2012
2012LRSP....9....6M Funding: STFC, the Leverhulme Trust and European Commission’s Seventh Framework Programme (FP7/2007-2013) under the grant agreement SWIFF (project no.
Anthony Yeates   +5 more
core   +1 more source

Cosmology with inhomogeneous magnetic fields [PDF]

open access: yes, 2007
We review spacetime dynamics in the presence of large-scale electromagnetic fields and then consider the effects of the magnetic component on perturbations to a spatially homogeneous and isotropic universe.
Roy Maartens   +5 more
core   +1 more source

On the vertigo due to static magnetic fields. [PDF]

open access: yes, 2013
Vertigo is sometimes experienced in and around MRI scanners. Mechanisms involving stimulation of the vestibular system by movement in magnetic fields or magnetic field spatial gradients have been proposed.
Antunes, Andre   +14 more
core   +1 more source

The STELLA Robotic Observatory on Tenerife

open access: yesAdvances in Astronomy, 2010
The Astrophysical Institute Potsdam (AIP) and the Instituto de Astrofísica de Canarias (IAC) inaugurated the robotic telescopes STELLA-I and STELLA-II (STELLar Activity) on Tenerife on May 18, 2006.
Klaus G. Strassmeier   +11 more
doaj   +1 more source

Computer Adaptive Testing Using Upper-Confidence Bound Algorithm for Formative Assessment

open access: yesApplied Sciences, 2019
There is strong support for formative assessment inclusion in learning processes, with the main emphasis on corrective feedback for students. However, traditional testing and Computer Adaptive Testing can be problematic to implement in the classroom ...
Jaroslav Melesko, Vitalij Novickij
doaj   +1 more source

Zero Magnetic Field Type Magnetic Field Sensor

open access: yesIEEJ Transactions on Electronics, Information and Systems, 1990
AbstractThis paper presents a new magnetic field sensor named the zero magnetic field type, on the basis of its principle of operation, which is as follows: when the magnetic field level in the core used as a sensor is shifted by an unknown field to be detected, a controlled field is so superimposed in the opposite direction to the unknown field that ...
T. Sonoda, R. Ueda
openaire   +2 more sources

Cosmic magnetic fields from density perturbations [PDF]

open access: yes, 2023
reservedMagnetic fields are observed on nearly all scales in the Universe, from stars and galaxies up to galaxy clusters and even beyond. The origin of cosmic magnetic fields remains an open question; however, a large class of models puts its origin in ...
PAVONE, ELISABETTA
core  

Feasibility of Parylene Coating for Planar Electroporation Copper Electrodes

open access: yesMedžiagotyra, 2017
This paper is focused on the feasibility study of parylene as a biocompatible coating for planar electroporation microelectrodes. The planar parallel and the circular interdigitated electrodes are applied in the analysis.
Vitalij NOVICKIJ   +6 more
doaj   +1 more source

A mathematical model and experimental procedure to analyze the cognitive effects of audio frequency magnetic fields

open access: yesFrontiers in Human Neuroscience, 2023
Audio frequency magnetic fields (20 Hz−20 kHz) are magnetic fields in extremely low frequency-very low frequency (ELF-VLF) bands that are present near audio equipment and acoustic transducers.
Enrique A. Navarro   +1 more
doaj   +1 more source

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