Results 31 to 40 of about 1,121,994 (368)
Compact Plasma-Based Soft X-Ray Lasers
IEEE Photonics Journal, 2010 This paper reviews the major accomplishments in the demonstration of plasmabased soft x-ray lasers in 2009. Advances in shaping the plasma density and increasing the pump power have enabled the engineering of table-top laser systems operating at ...
Jorge J. Rocca
doaj +1 more source
Robust Evaluation of Ultraviolet-C Sensitivity for SARS-CoV-2 and Surrogate Coronaviruses
Microbiology Spectrum, 2021 UV light, more specifically UV-C light at a wavelength of 254 nm, is often used to disinfect surfaces, air, and liquids. In early 2020, at the cusp of the COVID-19 pandemic, UV light was identified as an efficient means of eliminating coronaviruses ...
S. J. Boegel +9 more
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On Quantum Field Theory with Nonzero Minimal Uncertainties in Positions and Momenta [PDF]
, 1996 We continue studies on quantum field theories on noncommutative geometric spaces, focusing on classes of noncommutative geometries which imply ultraviolet and infrared modifications in the form of nonzero minimal uncertainties in positions and momenta ...
Achim Kempf +6 more
core +2 more sources
Intensities of incident and transmitted ultraviolet-a rays through gafchromic films
Journal of Medical Physics, 2017 Gafchromic films have been applied to X-ray dosimetry in diagnostic radiology. To correct nonuniformity errors in Gafchromic films, X-rays in the double-exposure technique can be replaced with ultraviolet (UV)-A rays.
Toshizo Katsuda +7 more
doaj +1 more source
Frontiers in Plant Science, 2021 Before ultraviolet (UV) radiation can be used as a horticultural management tool in commercial Cannabis sativa (cannabis) production, the effects of UV on cannabis should be vetted scientifically.
Victoria Rodriguez-Morrison +2 more
doaj +1 more source
Ultraviolet properties of f(R)-Gravity [PDF]
Int.J.Mod.Phys.A23:143-150,2008, 2007 We discuss the existence and properties of a nontrivial fixed point in f(R)-gravity, where f is a polynomial of order up to six. Within this seven-parameter class of theories, the fixed point has three ultraviolet-attractive and four ultraviolet-repulsive directions; this brings further support to the hypothesis that gravity is nonperturbatively ...
arxiv +1 more source
A site-specific standard for comparing dynamic solar ultraviolet protection characteristics of established tree canopies [PDF]
, 2019 A standardised procedure for making fair and comparable assessments of the ultraviolet protection of an established tree canopy that takes into account canopy movement and the changing position of the sun is presented for use by government, planning, and
Amar, A. +6 more
core +2 more sources
Accounts of Chemical Research, 2019 Coherent light radiation down to the deep-ultraviolet spectral range (λ < 200 nm) produced by common laser sources is extensively used in diverse fields ranging from ultrahigh-resolution photolithography to photochemical synthesis to high-precision ...
Miriding Mutailipu +3 more
semanticscholar +1 more source
Gaoyuan qixiangPhotosynthetically Active Radiation （PAR） spectrum， in visible light， is the wavelength range sensitive to plants and can be absorbed by them for photosynthesis.The characteristics of ground PAR spectrum directly affect the growth， development ...
Min SHENG +6 more
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Large-order Behaviour due to Ultraviolet Renormalons in QCD [PDF]
Phys.Lett. B404 (1997) 315-320, 1997 Ultraviolet renormalons, contrary to their infrared counterparts, lead to a universal contribution to the large-order behaviour of perturbative expansions in QCD. In this letter, we determine nature of the leading ultraviolet renormalon singularity for the inclusive hadroproduction cross section in $e^+ e^-$ annihilation, for hadronic $\tau$ decays and
arxiv +1 more source