Results 111 to 120 of about 2,606 (253)

Impacts of Extreme Ultraviolet Late Phase of the Solar Flare on Ionospheric Electrodynamics

open access: yesThe Astrophysical Journal Letters
Previous investigations of ionospheric electrodynamical responses to solar flares primarily focused on the main phases (MPs) of solar flares. Typical solar irradiance models for driving global ionosphere models do not include the extreme ultraviolet (EUV)
Xuanqing Liu   +7 more
doaj   +1 more source

Benzo[c][1,2,5]Thiadiazole Linkers Enhance the Effectiveness of Cavity‐Containing Supramolecular Photocatalysts

open access: yesChemistry – A European Journal, EarlyView.
Seven novel supramolecular photosensitizers based on benzo[c][1,2,5]thiadiazole (BTZ) tethered to calix[4]arene (C[4]) scaffolds are reported with facile, scalable, and selective syntheses. Their abilities to produce singlet oxygen have been tested through the photo‐oxidation of α‐terpinene.
Leonardo Amicosante   +6 more
wiley   +1 more source

Data-driven Simulation of Effects of a Solar Flare with Extreme-ultraviolet Late Phase on Ionospheric Electron Density

open access: yesThe Astrophysical Journal
Effects of the extreme-ultraviolet (EUV) late phase of solar flares on the ionosphere were rarely studied. Here we simulated such effects on the ionospheric electron density using an ionosphere−thermosphere coupled model driven by the realistic solar ...
Xuanqing Liu   +7 more
doaj   +1 more source

Cooling Bromine‐Contained Photovoltaic Perovskites: The Impact of Phase Segregation and Lattice Expansion

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
An optimal bromine content stabilizes the perovskite lattice during extreme temperature cycling by suppressing vacancies and regulating crystal growth, enhances open‐circuit voltage of the device by enhancing defect relaxation via lattice expansion.
Jing Zhang   +9 more
wiley   +1 more source

Can Solar Limb Flare Prediction Be Properly Made by Extreme-ultraviolet Intensities?

open access: yesThe Astrophysical Journal Letters
We address the question of whether the solar limb flare prediction can be properly made by EUV intensity, which has less projection effects than solar white light and magnetogram data.
Jaewon Lee   +4 more
doaj   +1 more source

Single Atom‐Modified TiO2‐Based Catalysts for Photoelectrochemical Water Splitting: From Fundamentals to Future Prospects

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Hydrogen and oxygen generated from water splitting process by photoelectrocatalysis of single atom modified TiO2 based photoelectrocatalysts. The accelerating demand for green hydrogen has intensified the development of efficient and durable photoelectrocatalysts (PECs) for sustainable water splitting.
Zichu Zhao   +2 more
wiley   +1 more source

A 3D Nonequilibrium Ionization Model of a Shock Wave in the Low Corona. I. Extreme-ultraviolet Emission and Inefficient Electron Heating

open access: yesThe Astrophysical Journal
Shocks in the low corona are best observed in the extreme ultraviolet (EUV); however, time-dependent ionization in the postshock region is generally incompatible with the otherwise straightforward plasma diagnostics typically applied to EUV imaging data.
Nicolas Trueba   +7 more
doaj   +1 more source

Recent Advances in Pickering Emulsion Templated Phase Change Material Microcapsules: Design, Fabrication, and Multifunctional Applications

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li   +4 more
wiley   +1 more source

Tuning Colloidal Stability and Photothermal Conversion Efficiency of Graphite Nanofluids via Anionic‐Nonionic Surfactant Engineering

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Graphite nanofluids were stabilized using a mixed SDS/Tween 80 surfactant system. The optimized formulation exhibited enhanced colloidal stability, red‐shifted UV–Vis absorption, and improved photothermal conversion under solar irradiation. Achieving stable dispersion of graphite flakes (GFs) in aqueous media remains a critical challenge in developing ...
Ahmad Chehade   +3 more
wiley   +1 more source

Observation and Modeling of Shear Evolution of Post-reconnection Flare Loops

open access: yesThe Astrophysical Journal
A solar flare releases magnetic energy by reconnecting field lines across a current sheet, thereby allowing their relaxation to a lower-energy state. The maximum possible energy is released if all field lines relax to a current-free (potential) state ...
Drake Osaben   +2 more
doaj   +1 more source

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