Results 11 to 20 of about 922,430 (265)

Rapid Variations of Earth’s Core Magnetic Field [PDF]

open access: yesSurveys in Geophysics, 2022
AbstractEvidence of fast variations in the Earth’s core field are seen both in magnetic observatory and satellite records. We present here how they have been identified at the Earth’s surface from ground-based observatory records and how their spatio-temporal structure is now characterised by satellite data. It is shown how their properties at the core
Nicolas Gillet   +2 more
exaly   +6 more sources

Sequential modelling of the Earth's core magnetic field [PDF]

open access: yesEarth, Planets and Space, 2020
Abstract We describe a new, original approach to the modelling of the Earth's magnetic field. The overall objective of this study is to reliably render fast variations of the core field and its secular variation. This method combines a sequential modelling approach, a Kalman filter, and a correlation based modelling step.
Guillaume Ropp   +3 more
openaire   +7 more sources

Gravitational core of double field theory

open access: yesThe European Physical Journal C
Abstract Double Field Theory (DFT) has emerged as a comprehensive framework for gravity, presenting a testable and robust alternative to General Relativity (GR), rooted in the $$\textbf{O}(D,D)$$ O ( D
Jeong-Hyuck Park
openaire   +3 more sources

Real-time temperature field recovery of a heterogeneous reactor based on the results of calculations in a homogeneous core [PDF]

open access: yesNuclear Energy and Technology, 2022
Advanced pressurized water reactors are the main part of a new generation of nuclear power plant projects under development that provide cost-effective power production for various needs (Yemelyanov et al. 1982, Klimov 2002, Boyko et al.
Vyacheslav S. Kuzevanov   +1 more
doaj   +3 more sources

Earth's core variability from magnetic and gravity field observations [PDF]

open access: yesSolid Earth, 2023
The motions of the liquid within the Earth's outer core lead to magnetic field variations together with mass distribution changes. As the core is not accessible for direct observation, our knowledge of the Earth’s liquid core dynamics only relies on ...
A. T. Saraswati   +3 more
doaj   +1 more source

Active Cores in Deep Fields [PDF]

open access: yesProceedings of the International Astronomical Union, 2005
8 pages, 3 figures. published in proceedings of IAUS230: "Populations of High Energy Sources in Galaxies", August 15-19 2005, Dublin, Eds E.J.A.
Hasinger, G., Müller, A.
openaire   +3 more sources

Concurrent TMS-fMRI: Technical Challenges, Developments, and Overview of Previous Studies

open access: yesFrontiers in Psychiatry, 2022
Transcranial magnetic stimulation (TMS) is a promising treatment modality for psychiatric and neurological disorders. Repetitive TMS (rTMS) is widely used for the treatment of psychiatric and neurological diseases, such as depression, motor stroke, and ...
Yuki Mizutani-Tiebel   +20 more
doaj   +1 more source

Uludağ Extensional Metamorphic Core Complex: Preliminary Field Observations

open access: yesBulletin of the Mineral Research and Exploration, 2022
In the northern margin of Uludağ massif in northwest Anatolia, the Bursa Detachment having top-to-the north, northeast normal sense of shear separates the lower plate high-grade metamorphic rocks of Series-A (Uludağ Group) from the upper plate low-grade ...
Korhan Esat, Gürol Seyitoğlu
doaj   +1 more source

Fields and filaments in the core of the Centaurus cluster [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2007
We present high resolution images of the Faraday Rotation Measure (RM) structure of the radio galaxy PKS 1246-410, at the center of the Centaurus cluster. Comparison with Halpha-line and soft X-ray emission reveals a correspondence between the line-emitting gas, the soft X-ray emitting gas, regions with an excess in the RM images, and signs of ...
Taylor, G. B.   +5 more
openaire   +2 more sources

Dislocation Core Energies and Core Fields from First Principles [PDF]

open access: yesPhysical Review Letters, 2009
Ab initio calculations in bcc iron show that a <111> screw dislocation induces a short-range dilatation field in addition to the Volterra elastic field. This core field is modeled in anisotropic elastic theory using force dipoles. The elastic modeling thus better reproduces the atom displacements observed in ab initio calculations. Including this
Clouet, Emmanuel   +2 more
openaire   +4 more sources

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