Results 111 to 120 of about 27,444 (310)
Oxygen Evolution Reaction Catalysts for Acidic‐Media CO2 Electrolyzers
Advanced Materials, EarlyView.Acidic‐media CO2 electroreduction (CO2R) could decarbonize chemical production, despite relying on rare‐earth elements for anodic oxygen evolution reaction (OER). Transferring the learnings from mature sister technologies (water electrolysis) could accelerate technological development.
Mingcheng Huang, Adnan Ozden
wiley +1 more source
Research on the Mechanism of Sequential Flares
The Astrophysical JournalCoronal mass ejections exert significant influences on the space environment of Earth, which warrants particular attention. An important question in solar physics is why some large solar flares erupt successfully while others remain confined.
Ruize Zhang, Peng Zou, Chang Zhang
doaj +1 more source
Lifetime of Long-Lived Sunspot Groups
UniverseStudies of active region (AR) lifetimes are mostly restricted to short-lived ARs. The aim of this paper is to include recurrent ARs, which should be identified unambiguously.
Judit Muraközy
doaj +1 more source
HOT JETS IN MAGNETIC FIELDS SOLAR ACTIVE REGIONS
Proceedings of the 25th All-Russia Conference on Solar and Solar-Terrestrial Physics, 2021 T.I. Kaltman +4 more
openaire +1 more source
Correlation Functions of Photospheric Magnetic Fields in Solar Active Regions
Solar Physics16 pages, 7 ...
Abramenko, Valentina +1 more
openaire +2 more sources
Advanced Materials Interfaces, EarlyView.A near‐infrared photosensitizer that facilitates efficient solid‐state photon upconversion by recycling triplets formed within a fullerene‐based donor–acceptor bulk‐heterojunction system is demonstrated. Spectroscopic investigations reveal that the energy of photogenerated charge transfer states of triplet character (3CT) is subsequently transferred to
Maciej Klein +4 more
wiley +1 more source
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
The Link between Nonthermal Velocity and Free Magnetic Energy in Solar Flares
The Astrophysical Journal LettersThe cause of excess spectral line broadening (nonthermal velocity) is not definitively known, but given its rise before and during flaring, the causal processes hold clues to understanding the triggers for the onset of reconnection and the release of ...
James McKevitt +7 more
doaj +1 more source
Reconstruction of a Highly Twisted Magnetic Flux Rope for an Inter-active-region X-Class Solar Flare
Frontiers in Astronomy and Space Sciences, 2019 Solar eruptions are manifestation of explosive release of magnetic energy in the Sun's corona. Large solar eruptions originate mostly within active regions, where strong magnetic fields concentrate on the solar surface. Here we studied the magnetic field
Chaowei Jiang +5 more
doaj +1 more source
Advanced Materials Interfaces, EarlyView.Using femtosecond ablation, we show that an ordered, stoichiometric crystalline PdSe2 target can be controllably converted into a stable, disordered, non‐stoichiometric, and highly functional amorphous nanomaterial, PdSe2−x${\rm PdSe}_{2-x}$. The obtained nanoparticles offer significant advantages over conventional planar plasmon‐free substrates due to
Andrei Ushkov +18 more
wiley +1 more source