Results 31 to 40 of about 4,481 (210)
Geophysical Research Letters, 2000 We show that the enhancements in both the upper limiting rigidity of the cosmic ray solar diurnal variation and the geomagnetic activity during the decline of solar activity are related to high values of the product of the solar wind speed and the ...
I. Sabbah
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Global Geomagnetic Model Errors as a Function of Altitude and Geomagnetic Activity
Space WeatherAbstract The errors of global geomagnetic models, such as the International Geomagnetic Reference Field and the World Magnetic Model (WMM), are well‐characterized at the Earth's surface, but their error behavior as a function of altitude and geomagnetic activity has not been quantified.
Manoj C Nair +3 more
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Spectrum analysis of short-period K index behaviour at high and mid-latitudes [PDF]
Annales Geophysicae, 2015 Geomagnetic activity levels during the declining phase and solar minimum period of the solar cycle are considerably different from those during the solar maximum phase.
P. B. Kotzé
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Advanced Science, EarlyView.By leveraging strong antiferromagnetic coupling, radiation‐tolerant synthetic antiferromagnetic synaptic devices are developed. Their intrinsic nonlinearity emulates neuronal activation, while linear and symmetric conductance modulation mimics synaptic plasticity.
Mingxu Song +5 more
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Advanced Science, EarlyView.An integrated polarimetry architecture based on a cholesteric liquid crystal waveguide polarization splitter overcomes the volumetric bottleneck in chip‐scale atomic magnetometers. By leveraging Bragg‐selective reflection and total‐internal‐reflection‐induced helicity inversion, this ultrathin device enables efficient circular polarization splitting ...
Zhibo Cui +9 more
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Latitudinal Dependence of the Geomagnetic and Solar Activity Effect on Sporadic‐E Layer
Space WeatherBased on the global COSMIC occultation data, the latitudinal dependence of the geomagnetic and solar activity effect on the sporadic‐E (Es) layer is statically investigated.
Qiong Tang +4 more
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High‐Temperature Magnetic Field Mapping Using a Single‐Crystal Diamond MEMS Resonator Array
Advanced Science, EarlyView.A single‐crystal diamond MEMS resonator array enables magnetic‐field reconstruction with millisecond response, nanotesla level magnetic noise, and stable operation up to 573 K. Two‐ and three‐dimensional magnetic field mapping are demonstrated using ΔEeffect sensing, highlighting the potential of diamond MEMS technology for hightemperature magnetic ...
Zilong Zhang +4 more
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InfoScience, EarlyView.This study integrates a wrist‐worn sensing platform based on a low‐noise planar Hall magnetoresistive sensor with time‐series deep learning to enable long‐range, single‐sensor, multi‐command gesture recognition with high accuracy. Further evaluations show reliable generalization across different days, previously unseen users, wearing‐position ...
Guannan Mu +5 more
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Geophysical Monograph Series, Page i-xiv., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
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Impact of Solar Irradiance on Low-Earth-Orbit Satellite Orbital Decay During Geomagnetic Storm
AerospaceIn recent years, with the rapid expansion of low-Earth-orbit (LEO) satellite constellations, the orbital decay of LEO satellites caused by atmospheric heating from solar irradiance and geomagnetic activity has become increasingly prominent.
Haiquan Yu, Lue Chen, Bo Chen
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