Results 31 to 40 of about 76,940 (295)
Variability of Millennial-Scale Trends in the Geomagnetic Axial Dipole [PDF]
, 2019 The historical trend in the axial dipole is sufficient to reverse the field in less than 2 kyr. Assessing the prospect of an imminent polarity reversal depends on the probability of sustaining the historical trend for long enough to produce a reversal ...
Avery, MS, Buffett, B, Davis, W
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Photocatalytic reverse polarity Povarov reaction
Chemical Science, 2018 A reverse polarity photocatalysed Povarov reaction of imines and electron deficient alkenes is described.
Leitch, J +5 more
openaire +5 more sources
The relative stabilities of the reverse and normal polarity states of the earth's magnetic field [PDF]
, 1987 Recent analyses of the geomagnetic reversal sequence have led to different conclusions regarding the important question of whether there is a discernible difference between the properties of the two polarity states.
Kent, Dennis V. +3 more
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Transient current in nematic cells containing a silicon substrate [PDF]
, 2008 Transient currents induced by step voltage or polarity reversal of voltage applied to a liquid crystal cell containing a silicon substrate have been investigated.
Kucheev, S. I.
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Polarity reversal during tissue remodeling [PDF]
Science, 2017 Development The epithelial-mesenchymal transition occurs when epithelial cells lose apicobasal polarity and cell-cell contacts and migrate into surrounding tissues as mesenchymal cells. Migration is crucial for gastrulation, neural tube formation, and cancer metastasis.
openaire +2 more sources
Magnetic Cycles in a Convective Dynamo Simulation of a Young Solar-type Star [PDF]
, 2011 Young solar-type stars rotate rapidly and many are magnetically active; some undergo magnetic cycles similar to the 22-year solar activity cycle. We conduct simulations of dynamo action in rapidly rotating suns with the 3D MHD anelastic spherical ...
Allan Sacha Brun +43 more
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Mantle superplumes induce geomagnetic superchrons
Frontiers in Earth Science, 2015 We use polarity reversal systematics from numerical dynamos to quantify the hypothesis that the modulation of geomagnetic reversal frequency, including geomagnetic superchrons, results from changes in core heat flux related to growth and collapse of ...
Peter eOlson, Hagay eAmit
doaj +1 more source
Unidirectional sub-100 ps magnetic vortex core reversal
, 2014 The magnetic vortex structure, an important ground state configuration in micron and sub-micron sized ferromagnetic thin film platelets, is characterized by a curling in-plane magnetization and, in the center, a minuscule region with out-of-plane ...
Back, Christian H. +10 more
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The Pseudo-Laplace Filter for Vector-Based Elastic Reverse Time Migration
Frontiers in Earth Science, 2021 The scalar images (PP and PS) can be effectively obtained in vector-based elastic reverse time migration by applying dot product–based scalar imaging conditions to the separated vector wavefields.
Qizhen Du +8 more
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Reversal of the extraordinary Hall effect polarity in thin Co/Pd multilayers
, 2010 Thin Co/Pd multilayers, with room temperature perpendicular anisotropy and an enhanced surface scattering, were studied for the possible use in the extraordinary Hall effect (EHE) - based magnetic memory devices.
Gerber, A. +2 more
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