Results 91 to 100 of about 2,120,833 (375)

The Impact of Space Weather on Ultraviolet Radiation at Mid Latitudes

Advances in Meteorology
Solar ultraviolet (UV) radiation plays a crucial role in various environmental, atmospheric, and industrial applications, despite covering only a small portion of the electromagnetic solar radiation.
Abdullrahman H. Maghrabi, Abdullah F. Aldosari   +1 more
doaj   +1 more source

Solar UV variability [PDF]

Measurements from the Solar Backscatter Ultraviolet (SBUV) provide solar UV flux in the 160 to 400 nm wavelength range, backed up by independent measurement in the 115 to 305 nm range from the Solar Mesosphere Explorer (SME).
Donnelly, Richard F.
core   +1 more source

Wavelength Dependence of Solar Rotation and Solar Cycle UV Irradiance Variations [PDF]

, 1990
It is shown that for the 5-year period 1982 to 1987 the solar irradiance decrease is estimated to be about 5 to 7 percent over the spectral interval 195 to 225 nm. This change becomes progressively smaller with increasing wavelength.
London, Julius, Rottman, Gary J.
core   +1 more source

High‐Concentration Mesogen‐Assisted Exfoliation of Low‐Dimensional Nanomaterials for Achieving Ultralow‐Temperature Actuations of Liquid Crystal Elastomers

Advanced Functional Materials, EarlyView.
Most matter is nominally frozen in the polar regions or space, and liquid crystal materials are no exception. Consequently, soft actuators, including liquid crystal elastomers (LCEs), are inoperative under such extreme cold in response to stimuli, as their motion relies on mechanical deformation.
Hyeonseong Kim, Yeon Gyeong Ha, Dong‐Gue Kang, Chinedum O. Osuji, Dae Seok Kim, Changyeon Lee   +5 more
wiley   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

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, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Short- and long-term variability of spectral solar UV irradiance at Thessaloniki, Greece: effects of changes in aerosols, total ozone and clouds

, 2015
. In this study, we discuss the short- and the long-term variability of spectral UV irradiance at Thessaloniki, Greece, using a long, quality-controlled data set from two Brewer spectrophotometers.
I. Fountoulakis, A. Bais, K. Fragkos, C. Meleti, K. Tourpali, M. Zempila   +5 more
semanticscholar   +1 more source

UV Exposure during Cycling as a Function of Solar Elevation and Orientation

Atmosphere
Although cycling is the most prevalent means of locomotion in the world, little research has been done in evaluating the ultraviolet (UV) radiation exposure of cyclists.
Philipp Weihs, Sarah Helletzgruber, Sofie Kranewitter, Lara Langer, Zacharias Lumerding, Viktoria Luschin, Philipp Schmidt, Jakob Heydenreich, Alois W. Schmalwieser   +8 more
doaj   +1 more source

Utilising shade to optimize UV exposure for vitamin D [PDF]

Atmospheric Chemistry and Physics, 2008
Numerous studies have stated that humans need to utilise full sun radiation, at certain times of the day, to assist the body in synthesising the required levels of vitamin D₃.
D. J. Turnbull, A. V. Parisi
doaj  

Spectral Studies of UV and Solar Photocatalytic Degradation of AZO Dye and Textile Dye Effluents Using Green Synthesized Silver Nanoparticles

Bioinorganic Chemistry and Applications, 2016
The photocatalytic degradation of the chemical dye AZO and dye effluents in different time duration has been investigated using biologically synthesized silver nanoparticles.
R. Mariselvam, A. J. A. Ranjitsingh, P. Mosae Selvakumar, Abdullah A. Alarfaj, Murugan A. Munusamy   +4 more
doaj   +1 more source

Chemical defense among hydroids on pelagic Sargassum:predator deterrence and absorption of solar UV radiation by secondary metabolites

, 2021
John J. Stachowicz, Niels Lindquist
openalex   +1 more source