Results 21 to 30 of about 27,802 (266)
Standing oscillations in a resonant sunspot atmosphere captured by integral field spectroscopy
Frontiers in Astronomy and Space SciencesThe solar atmosphere is replete with magnetohydrodynamic wave activity, with magnetic structures such as sunspots and pores able to channel wave energy flux efficiently into the outer atmosphere. Steep density and temperature gradients at the base of the
Glen Chambers +12 more
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Inter-calibration of nine UV sensing instruments over Antarctica and Greenland since 1980 [PDF]
Atmospheric Measurement Techniques, 2020 Nadir-viewed intensities (radiances) from nine UV sensing satellite instruments are calibrated over the East Antarctic Plateau and Greenland during summer.
C. J. Weaver +7 more
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Spectral Deconvolution With Deep Learning: Removing the Effects of Spectral PSF Broadening
Frontiers in Astronomy and Space Sciences, 2020 We explore novel methods of recovering the original spectral line profiles from data obtained by instruments that sample those profiles with an extended or multipeaked spectral transmission profile.
Momchil Molnar +6 more
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An Interactive Multi-instrument Database of Solar Flares [PDF]
The Astrophysical Journal Supplement Series, 2017 Abstract Solar flares are complicated physical phenomena that are observable in a broad range of the electromagnetic spectrum, from radio waves to γ-rays. For a more comprehensive understanding of flares, it is necessary to perform a combined multi-wavelength analysis using observations from many satellites and ground-based observatories.
Viacheslav M Sadykov +3 more
openaire +2 more sources
On the Performance of Multi-Instrument Solar Flare Observations During Solar Cycle 24 [PDF]
Solar Physics, 2018 26 pages, 7 figures, 3 tables.
Ryan O. Milligan, Jack Ireland
openaire +5 more sources
Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions
Advanced Functional Materials, EarlyView.This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian +7 more
wiley +1 more source
The Astronomical Journal, 2022 On 2017 August 21, the Airborne Infrared Spectrometer (AIR-Spec) observed the total solar eclipse at an altitude of 14 km from aboard the NSF/NCAR Gulfstream V research aircraft.
Jenna E. Samra +8 more
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Advanced Functional Materials, EarlyView.Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein +4 more
wiley +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT Perovskite solar cells (PSCs) are promising next‐generation photovoltaics. The high performance of PSCs is attributed to the long carrier lifetimes of perovskite photoabsorbers. However, the carrier lifetimes of polycrystalline perovskite layers, which serve as the photoabsorbers in practical PSCs, have remained limited to several tens of ...
Naoyuki Nishimura +2 more
wiley +1 more source
Accuracy Analysis for Shack–Hartmann Wave Front Sensing with Extended Sources
The Astrophysical JournalCorrelating the Shack–Hartmann wave front sensor (SH-WFS) with extended targets is widely used in solar adaptive optics systems. This paper aims to introduce a theoretical analysis that evaluates the accuracy of the SH-WFS on extended sources, with a ...
Xiya Wei, Changhui Rao
doaj +1 more source