Results 101 to 110 of about 378,163 (279)
Invisible Misconceptions: Student Understanding of Ultraviolet and Infrared Radiation
, 2011 The importance of nonvisible wavelengths for the study of astronomy suggests that student understanding of nonvisible light is an important consideration in astronomy classrooms.
Libarkin, Julie C. +3 more
core
Photochemistry and Photobiology, EarlyView.Three methods for substituting on‐site ambient ultraviolet radiation measurements for personal exposure measurements were investigated. Assuming spatial persistency of measurements from high‐grade instruments delivers lowest uncertainties up to distances of 82 km.
F. Lubitz +7 more
wiley +1 more source
Thin Film Heater for Removable Volatile Protecting Coatings
The Scientific World Journal, 2013 Freshly coated aluminum mirrors have excellent reflectivity at far ultraviolet wavelengths. However, reflectivity rapidly degrades when the mirror surfaces are exposed to atmosphere.
Abid Karim
doaj +1 more source
Massive photinos and ultraviolet astronomy
Physics Letters B, 1982 Abstract The ionisation of hydrogen and helium in the intergalactic medium and of silicon and carbon in galactic halos, including our own, have already tentatively been attributed to photons emitted by decaying neutrinos created in the hot big bang. This hypothesis would require a neutrino mass ∼ 100 eV and a radiative lifetime ∼ 10 27 s.
openaire +1 more source
Photochemistry and Photobiology, EarlyView.Inactivation trajectories of virus‐laden particles in rooms with different ventilation rates as they move under the light of a variety of Far‐UVC devices. Abstract Recent experimental studies have indicated the potential for ultraviolet C irradiation at 222 nm (Far‐UVC) to be used in occupied rooms to safely reduce exposure to airborne pathogens.
Camilo H. Peñaloza +5 more
wiley +1 more source
Spin‐Polarized Interfaces Redirect CO2 Reduction From CO to Formate
Angewandte Chemie, Volume 138, Issue 42, 12 October 2026.The chiral electrocatalyst exploits the CISS effect to establish a spin‐polarized interface that selectively promotes formate production during CO2 reduction while effectively suppressing the competing hydrogen evolution. ABSTRACT Achieving high product selectivity in electrocatalytic carbon dioxide reduction (CO2RR) remains a critical challenge due to
Fan He +4 more
wiley +2 more sources
The Astronomical JournalOur neighboring galaxy M31 has been recently surveyed at the far- and near-ultraviolet (FUV and NUV) with the UVIT telescope on AstroSat, which provides unprecedented sensitivity to young stellar populations.
Denis A. Leahy +2 more
doaj +1 more source
Geophysical Research Letters, Volume 53, Issue 21, 16 November 2026.Abstract Venus‐ward return flow can significantly influence ion escape from Venus and may therefore play an important role in atmospheric evolution. However, the mechanism driving return flow remains under debate. Here, we investigate the occurrence rate and spatial distribution of ion return flows in the Venusian induced magnetotail, and their ...
Emmett Shei‐House +6 more
wiley +1 more source
The May 2024 Storm: The Cusps and Dayside Magnetopause in Simulated Soft X‐Rays
Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.Abstract The coronal mass ejection (CME) arriving at Earth on 10 May 2024 caused the most intense geomagnetic storm in the last two decades, resulting in highly unusual cusp and magnetopause dynamics. We simulate soft X‐Ray emission due to solar wind charge exchange with exospheric neutrals to image the global dayside dynamics, focusing on the impact ...
J. Ng +12 more
wiley +1 more source
Anomalous Emission from Li- and Na-like Ions in the Corona Heated via Alfvén Waves
The Astrophysical JournalThe solar ultraviolet intensities of spectral lines originating from Li- and Na-like ions have been observed to surpass the expectations derived from plasmas with coronal approximation.
Takuma Matsumoto
doaj +1 more source