Results 191 to 200 of about 2,994 (242)

Do solar cycles influence giant cell arteritis and rheumatoid arthritis incidence? [PDF]

BMJ Open, 2015
Wing S, Rider LG, Johnson JR, Miller FW, Matteson EL, Crowson CS, Gabriel SE.   +6 more
europepmc   +1 more source

New science in plain sight: Citizen scientists lead to the discovery of optical structure in the upper atmosphere. [PDF]

Sci Adv, 2018
MacDonald EA, Donovan E, Nishimura Y, Case NA, Gillies DM, Gallardo-Lacourt B, Archer WE, Spanswick EL, Bourassa N, Connors M, Heavner M, Jackel B, Kosar B, Knudsen DJ, Ratzlaff C, Schofield I.   +15 more
europepmc   +1 more source

Instrumentation for monitoring Geomagnetically Induced Currents (GICs)

Geomagnetically Induced Currents (GICs) are the result of rapid variations in the Earth's geomagnetic field, caused by highly energized solar wind, and of the Earth's finite conductivity. These currents flow on the Earth's surface and along grounded conductive infrastructure, such as transmission power networks. In such systems, GICs pose a significant
openaire   +1 more source

Finite element solution of nonlinear eddy current problems with periodic excitation and its industrial applications.

Appl Numer Math, 2014
Bíró O, Koczka G, Preis K.
europepmc   +1 more source

Space weather and UK geomagnetically induced currents

Thomson, Alan, McKay, Allan
openaire   +1 more source

Modeling geomagnetically induced currents on networked conductors

, 2006
openaire   +1 more source

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Geomagnetically induced currents

2020
The space environment near Earth is constantly subjected to changes in the solar wind flow generated at the Sun. Examples of effects resulting from this variability are the occurrence of powerful solar disturbances, such as coronal mass ejections (CMEs).
Piersanti M, Carter B
openaire   +3 more sources

Geomagnetically Induced Currents: Principles

Brazilian Journal of Physics, 2017
The geospace, or the space environment near Earth, is constantly subjected to changes in the solar wind flow generated at the Sun. The study of this environment variability is called Space Weather. Examples of effects resulting from this variability are the occurrence of powerful solar disturbances, such as coronal mass ejections (CMEs).
Denny M. Oliveira, Chigomezyo M. Ngwira
openaire   +1 more source

GEOMAGNETICALLY INDUCED CURRENTS CALCULATION DURING GEOMAGNETIC DISTURBANCES

POWER ENGINEERING: economics, technique, ecology, 2016
A new method is presented to calculate geo-electric field using uniform Earth structure model for defining surface potential between grounded neutral of grid power transformers. It was calculated geo-electric field applying direct and inverse Fourier transform and calculated a surface impedance as a function of frequency of magnetic field oscillation ...
Kyryk, Valerii Valentynovych, Nahornyi, Roman Vladyslavovych   +1 more
openaire   +2 more sources

Analysis of Geomagnetically Induced Currents

2013 IEEE Power & Energy Society General Meeting, 2013
Sunspot activities can cause coronal mass ejections which interact with the Earth's magnetic field and can cause a Geomagnetic Disturbances (GMD) and subsequent widespread flows of Geomagnetically Induced Currents (GIC) in power grids. GMD events can impact the operational reliability of transmission networks over a wide geographical area.
Andrew Yan, Debbie Zhou, Luis Marti
openaire   +1 more source