Results 91 to 100 of about 4,306,191 (296)
Photospheric magnetic vortex structures [PDF]
, 2011 Using direct numerical magneto-hydrodynamic (MHD) simulations, we demonstrate the evidence of two physically different types of vortex motions in the solar photosphere.
Shelyag, S. +14 more
core +2 more sources
Ferroelectric Catalysts in the Hydrogen Evolution Reaction: A Perspective
Advanced Science, EarlyView.This perspective summarizes recent advances in ferroelectric (FE) catalysts for the hydrogen evolution reaction (HER). It first introduces HER fundamentals and FE mechanisms, then classifies FE catalysts into single‐phase, single‐atom‐modified, heterostructured, and other engineered types, with representative examples.
Rongxuan Lu +6 more
wiley +1 more source
Comparison of the On-disk Apparent Current Sheets with the Limb Ones
The Astrophysical JournalBased on observations from the Solar Dynamics Observatory (SDO) and the Solar and Heliospheric Observatory (SOHO), we investigate 30 apparent current sheets during 1999–2021, including 10 on-disk and 8 limb ones from the SDO, as well as 12 limb ones from
Tao Ding, Jun Zhang
doaj +1 more source
Advanced Science, EarlyView.A covalently integrated single‐component photocatalyst is constructed by anchoring selenoviologen to platinum nanoparticles via robust N‐heterocyclic carbene ligands. The resulting Pt─C covalent bonds function dually as protective structural scaffolds and direct channels for ultrafast intramolecular electron transfer This precise interfacial ...
Wenxi He +8 more
wiley +1 more source
Solar flare particle acceleration in collapsing magnetic traps [PDF]
, 2012 Electronic redacted version excludes material for which permission has not been granted by the rights holderThe topic of this thesis is a detailed investigation of different aspects of the particle acceleration mechanisms operating in Collapsing Magnetic
Grady, Keith J.
core +1 more source
The Astrophysical JournalMagnetic reconnection is believed to play an important role in the release and conversion of energy among magnetized plasma systems. So far, we have been unable to understand under what conditions magnetic reconnection can take place.
Tao Ding +5 more
doaj +1 more source
Heartbeat of the sun from principal component analysis and prediction of solar activity on a millenium timescale [PDF]
, 2015 We derive two principal components (PCs) of temporal magnetic field variations over the solar cycles 21-24 from full disk magnetograms covering about 39% of data variance, with σ = 0.67. These PCs are attributed to two main magnetic waves travelling from
Shepherd, Simon J. +10 more
core +1 more source
Advanced Science, EarlyView.As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Donghyeon Lee +3 more
wiley +1 more source
Preliminary Discussion on the Current Sheet
The Astrophysical JournalThe current sheet is a characteristic structure of magnetic energy dissipation during the magnetic reconnection process. So far, the width and depth of the current sheet are still indefinite.
Tao Ding +3 more
doaj +1 more source
Three-dimensional spatial structures of solar wind turbulence from 10 000-km to 100-km scales [PDF]
, 2011 Using the four Cluster spacecraft, we have determined the three-dimensional wave-vector spectra of fluctuating magnetic fields in the solar wind. Three different solar wind intervals of Cluster data are investigated for this purpose, representing ...
Narita, Y. +15 more
core +2 more sources