Results 41 to 50 of about 1,121,994 (368)

Vacuum-ultraviolet photodetectors

open access: yes, 2020
High-performance vacuum-ultraviolet (VUV) photodetectors are of great significance to space science, radiation monitoring, electronic industry and basic science.
Lemin Jia, Wei Zheng, Feng Huang
semanticscholar   +1 more source

Solar-blind ultraviolet-C persistent luminescence phosphors

open access: yesNature Communications, 2020
Visible-light and infrared-light persistent phosphors are extensively studied and are being used as self-sustained glowing tags in darkness. In contrast, persistent phosphors for higher-energy, solar-blind ultraviolet-C wavelengths (200–280 nm) are ...
Xianli Wang   +3 more
semanticscholar   +1 more source

Changes in Ultraviolet Absorption of Sunscreens After Ultraviolet Irradiation [PDF]

open access: yesJournal of Investigative Dermatology, 1999
The incidence of skin cancer is increasing rapidly and sunscreens have been recommended in order to reduce damage from sunlight. In this investigation we have studied the change in the absorption spectrum of some photoactive organic species in sunscreens after ultraviolet A and ultraviolet B irradiation in a dose normally encountered during a full day ...
Nils Tarras-Wahlberg   +5 more
openaire   +2 more sources

Spectral Behaviour and Flaring Activity of II Peg in the Ultraviolet [PDF]

open access: yes, 2022
We have investigated the spectral behaviour of II Peg binary system in the ultraviolet band by using International Ultraviolet Explorer observations over fifteen years. The ultraviolet observations show indication of flare activity in the chromosphere and transition region with their enhanced spectral lines.
arxiv   +1 more source

Synthesis of Benzoyl C-Phenylcalix[4]resorcinaryl Octaacetate and Cinnamoyl C-Phenylcalix[4]arene for UV Absorbers

open access: yesIndonesian Journal of Chemistry, 2014
A new upper rim-functionalized benzoyl C-phenylcalix[4]resorcinaryl octaacetate and cinnamoyl C-phenylcalix[4]resorcinarene have been synthesized and evaluated as the absorbers for ultraviolet radiation.
Budiana I Gusti M. Ngurah   +4 more
doaj   +1 more source

Modelling ultraviolet threats [PDF]

open access: yes, 2016
Electro-optically (EO) guided surface to air missiles (SAM) have developed to use Ultraviolet (UV) wavebands supplementary to the more common Infrared (IR) wavebands.
James, Itor
core   +1 more source

Ultraviolet Behavior of Non-Abelian Gauge Theories

open access: yes, 1973
It is shown that a wide class of non-Abelian gauge theories have, up to calculable logarithmic corrections, free-field-theory asymptotic behavior. It is suggested that Bjorken scaling may be obtained from strong-interaction dynamics based on non-Abelian ...
D. Gross, F. Wilczek
semanticscholar   +1 more source

Ultraviolet-Protected Inflation [PDF]

open access: yesPhysical Review Letters, 2011
In natural inflation, the inflaton is a pseudo-Nambu-Goldstone boson which acquires a mass by explicit breaking of a global shift symmetry at scale f. In this case, for small field values, the potential is flat and stable under radiative corrections.
Germani, Cristiano, Kehagias, Alex
openaire   +3 more sources

A Highly Robust Silicon Ultraviolet Selective Radiation Sensor Using Differential Spectral Response Method

open access: yesSensors, 2019
This paper presents a silicon ultraviolet radiation sensor with over 90% UV internal quantum efficiency (QE) and high selectivity to the UV waveband without using optical filters.
Yhang Ricardo Sipauba Carvalho da Silva   +2 more
doaj   +1 more source

Coupling adsorption by NiO nanopowder with UV/H2O2 process for Cr(VI) removal [PDF]

open access: yesJournal of Advances in Environmental Health Research, 2017
Chromium enters surface and ground waters through the wastewater of electroplating, textile, metallurgical, dye production, and other industries, leading to numerous adverse health effects.
Majid Hashemi   +7 more
doaj   +1 more source

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