Results 71 to 80 of about 979,369 (340)

Magnetic Fields in the Solar Convection Zone

Living Reviews in Solar Physics, 2004
Recent studies of the dynamic evolution of magnetic flux tubes in the solar convection zone are reviewed with focus on emerging flux tubes responsible for the formation of solar active regions. The current prevailing picture is that active regions on the
Fan Yuhong
doaj  

Preliminary Discussion on the Current Sheet

The Astrophysical Journal
The 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, Jun Zhang, Yuan Fang, Zhiying Ma   +3 more
doaj   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Comparison of the On-disk Apparent Current Sheets with the Limb Ones

The Astrophysical Journal
Based 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

Implications of Different Solar Photospheric Flux-transport Models for Global Coronal and Heliospheric Modeling

The Astrophysical Journal, 2023
The concept of surface-flux transport (SFT) is commonly used in evolving models of the large-scale solar surface magnetic field. These photospheric models are used to determine the large-scale structure of the overlying coronal magnetic field, as well as
Graham Barnes, Marc L. DeRosa, Shaela I. Jones, Charles N. Arge, Carl J. Henney, Mark C. M. Cheung   +5 more
doaj   +1 more source

Solar magnetic fields and the cause of terrestrial magnetism [PDF]

Terrestrial Magnetism and Atmospheric Electricity, 1908
In this JOURNAL for June, 1900 (vol. V, p. 73), June, 1903 (vol. VIII, p. 49) and December, 1904 (vol. IX, p. 167), the Earth's magnetism was traced to rotation round the axis, different hypotheses for a differential effect resulting from the two kinds of electricity being discussed in each of the three papers.
openaire   +2 more sources

Ambient‐Dried MOF/Cellulose‐Based Aerogels for Atmospheric Water Harvesting and Sustainable Water Management in Agriculture

Advanced Functional Materials, EarlyView.
Ambient‐dried composite aerogels integrating MOF‐303, TEMPO‐oxidized cellulose nanofibers (TOCNF), and hygroscopic salts enable high‐performance atmospheric water harvesting (AWH), achieving competitive uptake at both low and high humidity. Enhanced with a solar‐evaporation layer, these scalable aerogels support self‐sustained plant growth in a ...
Ahmadreza Ghaffarkhah, Mahyar Panahi‐Sarmad, Sara Rostami, Orysia Zaremba, Lukas Alexander Bauman, Seyyed Alireza Hashemi, Subhajit Dutta, Pu Yang, Tianyu Guo, Feng Jiang, Stefan Wuttke, Mohammad Arjmand, Orlando J. Rojas   +12 more
wiley   +1 more source

Perturbazioni geomagnetiche, aurorali, ionosferiche e dei raggi cosmici : interdipendenze e relazioni con l'attività solare

Annals of Geophysics, 1966
Existence of interplanetary magnetic fields other than<br />the geomagnetic field is now well established. They travel as frozen-in<br />fields inside the solar plasma clouds: magnetic fields on the Sun are then<br />discussed ...
F. Molina, F. Mariani
doaj   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

The Sun’s Magnetic Power Spectra over Two Solar Cycles. II. Cycle Dependence of Active Regions, a Magnetic Network, and Their Relation

The Astrophysical Journal
The multiscaled solar magnetic field consists of two major components: active regions (ARs) and magnetic network. Unraveling the cycle-dependent properties and interrelations of these components is crucial for understanding the evolution of the solar ...
Yukun Luo, Jie Jiang, Ruihui Wang
doaj   +1 more source