Results 91 to 100 of about 2,149,446 (376)
IET Science, Measurement & Technology, 2022 Solar‐blind ultraviolet (UV) discharge detection based on UV signals in the solar‐blind band from 240 to 280 nm is an effective non‐contact discharge detection method for electrical equipment, but there is still a problem that the detection results of ...
Yunpeng Liu +4 more
doaj +1 more source
Observational searches for g-mode oscillations in the quiet solar atmosphere from TRACE 1600A Continuum Observations [PDF]
arXiv, 2008 Our aim is to search for atmospheric g-mode oscillations in UV network, UV bright points and Uv background regions. We have analysed a 6-hours of time sequence of ultraviolet (uv) images obtained on May 24, 2003 in 1600A continuum under high spatial and temporal resolution from Transition Region and Coronal Explorer (TRACE).
arxiv
Bolometric and UV Light Curves of Core-Collapse Supernovae [PDF]
, 2013 The Swift UV-Optical Telescope (UVOT) has been observing Core-Collapse Supernovae (CCSNe) of all subtypes in the UV and optical since 2005. We present here 50 CCSNe observed with the Swift UVOT, analyzing their UV properties and behavior. Where we have multiple UV detections in all three UV filters (\lambda c = 1928 - 2600 \AA), we generate early time ...
arxiv +1 more source
A Mechanism Involving Solar Ultraviolet Variations for Modulating the Interannual Climatology of the Middle Atmosphere [PDF]
, 1990 In years of low solar activity, free traveling wave modes in the upper stratosphere are dominated by atmospheric normal modes such as the 16-day wave. However, within a 4-year interval centered on the 1980 to 1981 solar maximum, cross-spectral analyses ...
Hood, L. L., Jirikowic, J. L.
core +1 more source
Advanced Functional Materials, EarlyView.The non‐fullerene acceptor o‐IDT‐BT‐DCV is used in both binary and ternary blends to investigate the role that it plays in each device architecture. The charge generation pathways are found to differ between the binary and ternary blends with o‐IDT‐BT‐DCV becoming a second donor in the ternary blend.
Hui Jin +10 more
wiley +1 more source
Urban UV environment in a sub-tropical megacity – A measurement and modelling study
Results in Physics, 2017 The variations of solar total UV (UVA + UVB) exposure rates in a megacity featured with high-rise buildings during summer months were measured and relevant model predictions were evaluated.
Ka-Ming Wai, Peter K.N. Yu, Pok-Man Chan
doaj
The dependence of the [FUV-MUV] colour on solar cycle
Journal of Space Weather and Space Climate, 2017 Solar UV variability is extremely relevant for the stratospheric ozone. It has an impact on Earth’s atmospheric structure and dynamics through radiative heating and ozone photochemistry.
Lovric Mija +6 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This work investigates modifying interfacial contacts in realizing giant‐performance semiconductor nanomembrane optoelectronics. Strategies, including surface reaction and buffer layer work‐function modulation, are explored to boost the Schottky barrier. An emerging material of YbOx is utilized for near‐ideal Ohmic contact.
Yibo Zhang +5 more
wiley +1 more source
An Estimate of Changes in the Sun's Total Irradiance Caused by UV Irradiance Variations from 1874 to 1988 [PDF]
, 1990 Enhanced emission from bright solar faculae is a source of significant variation in the sun's total irradiance. Relative to the emission from the quiet sun, facular emission is known to be considerably greater at UV wavelengths than at visible ...
Lean, J.
core +1 more source
Cyclic Variations in the Solar Radiation Fluxes at the Beginning of the 21st Century
, 2018 The solar activity in the current, that is, the 24-th, sunspot cycle is analyzed. Cyclic variations in the sunspot number (SSN) and radiation fluxes in various spectral ranges have been estimated in comparison with the general level of the solar ...
Bruevich, E. A. +2 more
core +1 more source