Results 81 to 90 of about 72,461 (205)

Laminar plasma dynamos

open access: yesPhysics of Plasmas, 2002
A new kind of dynamo utilizing flowing laboratory plasmas has been identified. The conversion of plasma kinetic energy to magnetic energy is verified numerically by kinematic dynamo simulations for magnetic Reynolds numbers above 210. As opposed to intrinsically-turbulent liquid-sodium dynamos, the proposed plasma dynamo corresponds to laminar flow ...
Wang, Zhehui   +3 more
openaire   +2 more sources

Meridional Currents of the Equatorial Electrojet

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract The equatorial electrojet (EEJ) is a prominent eastward geomagnetic current flowing at the dayside magnetic dip equator, peaking just before noon. Associated meridional currents also flow perpendicular to the main current, predicted through modeling and observed in rocket measurements.
X. G. V. M. Topacio, A. Yoshikawa
wiley   +1 more source

Do Migrating Semidiurnal Tidal Winds From the Lower Atmosphere Control Thermospheric Winds?

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Lower atmospheric tides are important for driving the thermospheric and ionospheric structure. The effects of different lower atmospheric migrating semidiurnal tidal fields of neutral density, temperature, and winds on the thermospheric winds are investigated by using the global ionosphere‐thermosphere model with forcing of the tides at the ...
Chen Wu, Aaron J. Ridley
wiley   +1 more source

Dynamo in protostars [PDF]

open access: yesPramana, 2013
5 ...
Verma, Mahendra K   +2 more
openaire   +3 more sources

Research on BIM-Based Visualization, Simulation, and Early Warning System for Shield Tunnel Construction

open access: yesBuildings
This study aims to facilitate a comparison between construction monitoring data and simulation results, focusing on the dynamic adjustment of safety monitoring parameters in shield construction.
Qian Cheng   +4 more
doaj   +1 more source

Daytime Ionospheric Density Enhancement Driven by Poleward Neutral Wind Shear Associated With Gravity Waves During the November 2025 Geomagnetic Storm

open access: yesGeophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract The threefold daytime electron density increases, along with strong poleward meridional winds exceeding 200 m/s were captured by Sanya Incoherent Scatter Radar (SYISR) during the geomagnetic storm of 12 November 2025. The great ionospheric enhancements were extending to mid‐latitudes over 40° observed by total electron content (TEC) from ...
Qi Jiang   +7 more
wiley   +1 more source

Helicity conservation in nonlinear mean-field solar dynamo

open access: yes, 2012
We explore the impact of magnetic helicity conservation on the mean-field solar dynamo using the axisymmetric dynamo model which includes the subsurface shear.
Kuzanyan, K. M.   +3 more
core   +1 more source

Testosterone Exposure During Fetal Masculinization Programming Window Determines the Kidney Size in Adult Mice

open access: yesThe FASEB Journal, Volume 40, Issue 7, 15 April 2026.
Kidney size is sex‐dimorphic and regulated by androgens in adult humans and mice. Male mice lacking the main testosterone‐producing enzyme HSD17B3 had reduced testosterone during a short fetal time window, leading to reduced size of kidneys in adults, which were not responsive to high adult testosterone.
Arttu Junnila   +14 more
wiley   +1 more source

The Solar Dynamo and Planetary Dynamo [PDF]

open access: yesSymposium - International Astronomical Union, 1993
A dynamo driven by flows of differential rotation and global convection in a rotating sphere is reviewed as a model of the solar and planetary dynamos. The flows can amplify a magnetic field from an infinitesimal level and thus can generate a magnetic field.
openaire   +1 more source

Constraining the Dynamo Layers in Jupiter and Saturn with Observations and Scaling Laws

open access: yesThe Astrophysical Journal
The dipole-dominated magnetic fields of Jupiter and Saturn provide evidence for active dynamos operating within their deep interiors, yet the depth of the convecting dynamo layers remains poorly constrained.
Tanja Kovačević   +3 more
doaj   +1 more source

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