Results 171 to 180 of about 498 (257)

Natural Sunlight IR‐Driven Highly Efficient Synthesis of Acetaldehyde From Bioethanol Over Cu/Fe2O3

open access: yesAngewandte Chemie, EarlyView.
This work reports a Cu/Fe2O3 catalyst for the conversion of bioethanol into valuable acetaldehyde and green hydrogen under both infrared (IR) light and natural sunlight. This IR‐driven system sets a new performance benchmark, with TON and initial TOF enhanced by at least one order of magnitude, enabled by a constructed IR photon‐to‐phonon channel and ...
Xiyi Li   +10 more
wiley   +2 more sources

Magnetic diffusion in solar atmosphere produces measurable electric fields. [PDF]

open access: yesNat Commun
Anan T   +15 more
europepmc   +1 more source

A dataset of manually annotated filaments from H-alpha observations. [PDF]

open access: yesSci Data
Ahmadzadeh A   +17 more
europepmc   +1 more source

Butterfly Diagram and Other Properties of Plage Areas from Kodaikanal Ca ii K Photographs Covering 1904 - 2007. [PDF]

open access: yesSol Phys
Jha BK   +6 more
europepmc   +1 more source

Cycloazulenylene

open access: yesAngewandte Chemie International Edition, EarlyView.
A strained macrocycle consisting solely of azulene subunits, named [6]cycloparaazulenylene ([6]CPA), is presented. The macrocycle exhibits a notably narrow HOMO–LUMO gap for a pristine azulene species, strain‐induced red‐shifted absorption, and an unusual tubular packing motif elucidated via single‐crystal XRD.
Clara Douglas   +8 more
wiley   +1 more source

Simulations of multi-phase gas in and around galaxies. [PDF]

open access: yesLiving Rev Comput Astrophys
Gronke M, E Schneider E.
europepmc   +1 more source

Long-term Solar Activity Studies using Microwave Imaging Observations and Prediction for Cycle 25. [PDF]

open access: yesJ Atmos Sol Terr Phys, 2018
Gopalswamy N   +3 more
europepmc   +1 more source

SOLAR PROMINENCE ACTIVITY

open access: yesMonthly Weather Review, 1922
openaire   +1 more source

Solar Prominences, 1918 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1919
openaire   +1 more source

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