Results 71 to 80 of about 41,413 (274)

No-z Model for Magnetic Fields of Different Astrophysical Objects and Stability of the Solutions

open access: yesData, 2021
A wide range of astrophysical objects, such as the Sun, galaxies, stars, planets, accretion discs etc., have large-scale magnetic fields. Their generation is often based on the dynamo mechanism, which is connected with joint action of the alpha-effect ...
Evgeny Mikhailov   +2 more
doaj   +1 more source

OsPIP2;1 impacts root hydraulic conductance and is a candidate gene for a drought avoidance QTL on rice chromosome 7

open access: yesPlant Biology, EarlyView.
In this study, we identified a rice plasma membrane intrinsic aquaporin (OsPIP2;1) as the candidate gene for a chromosome 7 locus driving drought avoidance, supported by established and novel physiological experiments measuring root hydraulic conductance in near isogenic and RNAi knockdown lines.
Z. Abubakar   +6 more
wiley   +1 more source

Planetary Dynamos

open access: yes, 2007
The theory of planetary dynamos and its applications to observed phenomena of planetary magnetism are outlined. It is generally accepted that convection flows driven by thermal or compositional buoyancy are the most likely source for the sustenance of global planetary magnetic fields.
Busse, F. H., Simitev, R. D.
openaire   +2 more sources

Mercury’s anomalous magnetic field caused by a symmetry-breaking self-regulating dynamo

open access: yesNature Communications, 2019
The discovery of Mercury’s unusually axisymmetric, anomalously axially offset dipolar magnetic field reveals a new regime of planetary magnetic fields. The cause of the offset dipole remains to be resolved, although some exotic models have been proposed.
F. Takahashi, H. Shimizu, H. Tsunakawa
semanticscholar   +1 more source

The Drag of Ionosphere Plasma Drifts on Thermospheric Zonal Winds During the 10–12 May 2024 Superstorm

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The observations from GRACE‐FO and DMSP satellites are utilized to analyze the ion‐neutral interaction near dusk during the 10–12 May 2024 super‐storm. The horizontal plasma convection dragged the anti‐sunward wind in the polar cap and sunward winds around the auroral and subauroral regions during whole storm times.
Ruilong Zhang   +6 more
wiley   +1 more source

Physics‐Informed Neural Networks for Modeling the Martian Induced Magnetosphere

open access: yesGeophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Understanding the magnetic field environment around Mars and its response to upstream solar wind conditions provide key insights into the processes driving atmospheric ion escape. To date, global models of Martian induced magnetosphere have been exclusively physics‐based, relying on computationally intensive simulations. For the first time, we
Jiawei Gao   +8 more
wiley   +1 more source

Dynamo cycles in global convection simulations of solar-like stars [PDF]

open access: yesAstronomy & Astrophysics, 2017
Context. Several solar-like stars exhibit cyclic magnetic activity similar to the Sun as found in photospheric and chromospheric emission.Aims. We seek to understand the physical mechanism involved in rotational dependence of these activity cycle periods.
J. Warnecke
semanticscholar   +1 more source

REVIT+DYNAMO

open access: yes, 2022
The article discusses the possibilities of AutoDesk Revit in conceptual modeling and visual programming (Revit + Dynamo) in improving the efficiency of design and construction work in modern architecture, the creation of complex buildings and structures ...
Ravshanovich, Khalikov Sindorkul
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, Volume 600, Issue 11, Page 1589-1604, June 2026.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

A two-billion-year history for the lunar dynamo

open access: yesScience Advances, 2017
Paleomagnetic evidence suggests the lunar dynamo persisted beyond 2.5 Ga, requiring an exceptionally long-lived power source. Magnetic studies of lunar rocks indicate that the Moon generated a core dynamo with surface field intensities of ~20 to 110 μT ...
S. Tikoo   +5 more
semanticscholar   +1 more source

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