Results 71 to 80 of about 30,180 (299)
The impacts of ultraviolet radiation feedback on galaxies during the epoch of reionization
, 2012 We explore the impacts of ultraviolet (UV) radiation feedback on galaxies during the epoch of reionisation by cosmological simulations in which hydrodynamics and the transfer of the H and He ionising photons are consistently coupled.
Hasegawa, Kenji, Semelin, Benoit
core +3 more sources
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
The photodiode of UV-range on the basis of ZnSe [PDF]
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2010 The construction and technology of Shottky photodiode on the basis of ZnSe, sensible in the ultraviolet region of spectrum are considered. Researches of electrophysical and photo-electric descriptions of photodiodes of Shottky Nі–ZnSe(Te,O)–Іn are ...
Perevertailo V. L. +7 more
doaj
Advanced Functional Materials, EarlyView.The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner +4 more
wiley +1 more source
Simplified modeling of E. coli mortality after genome damage induced by UV-C light exposure
Scientific Reports, 2020 UV light is a group of high-energy waves from the electromagnetic spectrum. There are three types of UV radiations: UV-A, -B and -C. UV-C light are the highest in energy, but most are retained by the ozone layer. UV-A and -B reach the earth’s surface and
Jaime Sánchez-Navarrete +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger +10 more
wiley +1 more source
FUUAST Journal of Biology, 2011 This investigation attempts to examine the effect of UV-B radiation on germination, seedling growth, chlorophyll a and b content, soluble phenol, anthocyanin and flavonoid contents of sunflower (Helianthus annuus L.).
S. SHAHID SHAUKAT +2 more
doaj
High intensity ultraviolet radiation induced changes in aquatic arthropod with retene and riboflavin
Environment Conservation Journal, 2011 Ozone depletion is resulting into increase in ultraviolet radiation level in the world. Exposure to UV radiation has been found to have negative effects on aquatic and terrestrial organisms.
Sunil Kumar, Priyanka Kumari
doaj +1 more source
Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules
Advanced Functional Materials, EarlyView.A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang +7 more
wiley +1 more source
A green chemical approach for nitration of aromatic compounds
Macedonian Journal of Chemistry and Chemical Engineering, 2009 Photochemical aromatic nitration of phenol and salicylic acid has been carried out in the presence of UV radiations and formation of products has been observed spectrophotometrically.
Arpita Dugar +3 more
doaj +1 more source