Results 81 to 90 of about 9,282,579 (236)

Modeling Geoelectric Fields in Ireland and the UK for Space Weather Applications [PDF]

open access: yesSpace Weather, 2019
AbstractGeoelectric fields at the Earth's surface caused by geomagnetic storms have the potential to disrupt and damage ground‐based infrastructure such as electrical power distribution networks, pipelines, and railways. Here we model geoelectric fields in Ireland and the UK during both quiet and active time intervals of geomagnetic conditions using ...
J. Campanyà   +7 more
openaire   +2 more sources

Optimizing Panning Operating Parameters for Alluvial Gold Processing: The Case of the Wakaso Panning Plant

open access: yesEngineering Reports, Volume 7, Issue 11, November 2025.
The best configuration corresponding to the optimal rate of site handmade panning of gold gravel is obtain by using experimental plan and machine learning. The optimization of alluvial gold yield by genetic algorithms showed that the best configuration of 86.217% at a 10° slope and a 5 tr/min rotation speed.
Harouna Boukari   +6 more
wiley   +1 more source

Geomagnetically induced currents in Norway: the northernmost high-voltage power grid in the world

open access: yesJournal of Space Weather and Space Climate, 2014
We have derived comprehensive statistics of geomagnetic activity for assessing the occurrence of geomagnetically induced currents (GIC) in the Norwegian high-voltage power grid.
Myllys Minna   +3 more
doaj   +1 more source

Simulation and Analysis of Geomagnetically Induced Current Levels in Shandong Power Grid

open access: yesSpace Weather, 2021
Geomagnetically induced current (GIC) in utility systems such as electric power grids occurring during extreme geomagnetic storms can exceed the tolerance limit of the systems, which can cause serious system damages.
Han Wang   +5 more
doaj   +1 more source

Relationship between Interplanetary Conditions and Changes in the Geomagnetic Field to Understand the Causes of Geomagnetically Induced Currents [PDF]

open access: yes, 2018
Geomagnetically Induced Currents (GICs) are electrical currents induced in ground-level conductive networks, like power lines and pipelines, which can cause costly damage to infrastructure.
Maillet, Cameron P
core   +1 more source

Interdisciplinary study of ionospheric currents and associated geoelectric fields

open access: yes, 2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Egbert, G.   +5 more
openaire   +2 more sources

Self‐Potential Signal Associated With Hydrothermal System Disrupted by Extreme Raining Events; The Case Study of Formica Leo, Piton de la Fournaise, La Réunion Island

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract The scoria cones called Formica Leo located at the base of the Piton de la Fournaise terminal cone have been chosen for its significant positive Self‐Potential (SP) anomalies associated with hydrothermal uprising fluids to monitor SP signal and study its dynamics in relation with huge and extreme rainfall events.
Emilie Roulleau   +12 more
wiley   +1 more source

Imaging polar and dipolar sources of geophysical anomalies by probability tomography. Part II: Application to the Vesuvius volcanic area

open access: yes, 2006
In the previous part I, we have developed the generalized theory of the probability tomography method to image polar and dipolar sources of a vector or scalar geophysical anomaly field.
Mauriello, Paolo, Patella, Domenico
core   +2 more sources

Geophysical assessment of subsurface conditions at proposed building sites: implications for foundation failure and building collapse [PDF]

open access: yes, 2018
Building collapse has been a recurrent environmental hazard in Nigeria in the last two decades. This is a corollary of inadequate foundation investigation prior to construction, poor government policies, and general lack of awareness on the importance of
Ariyo, Stephen Oluwafemi   +4 more
core  

Tectonic interpretation of electrical structures beneath the West African craton edge in eastern Senegal [PDF]

open access: yes, 1988
Des mesures du champ magnétotellurique à travers le bassin côtier du Sénégal et la chaîne des Mauritanides ont permis l'élaboration de modèles de résistivité à deux dimensions. Les sections géoélectriques reflètent les changements latéraux de résistivité
Ritz, Michel, Robineau, Bernard
core   +1 more source

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