Results 81 to 90 of about 30,136 (183)
Gaseous optical contamination of the spacecraft environment: A review [PDF]
Interactions between the ambient atmosphere and orbiting spacecraft, sounding rockets, and suborbital vehicles, and with their effluents, give rise to optical (extreme UV to LWIR) foreground radiation which constitutes noise that raises the detection ...
Kofsky, I. L. +3 more
core +1 more source
Iranian Journal of Materials Science and Engineering, 2021 Copper oxide (CuO) nanostructure particles were prepared using KOH/NaOH catalyst by low cost precipitation method and characterized by powder X-ray diffraction (PXRD), scanning electron microscope (SEM) and energy dispersive X-ray spectra (EDX) analysis.
Usha Vengatakrishnan +3 more
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Ultraviolet radiation effects [PDF]
Solar ultraviolet testing was not developed which will provide highly accelerated (20 to 50X) exposures that correlate to flight test data. Additional studies are required to develop an exposure methodology which will assure that accelerated testing can ...
Slemp, Wayne S.
core +1 more source
COMBINED EFFECT OF ALLEOPATHY AND UV-B RADIATION ON LENS CULINARIS MEDIK
FUUAST Journal of Biology, 2014 The effect of UV-B radiation and alleopathic chemicals of Prosopis juliflora were studied on Lens culinaris individually and in combination. The UV-B radiation suppressed the germination percentage and germination velocity at 10, 20 and 30 minutes ...
ADAM KHAN +2 more
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UV-radiation, apoptosis and skin.
Collegium antropologicum, 2011 Apoptosis or programmed cell death is a key function in regulating skin development, homeostasis and tumorigenesis. The epidermis is exposed to various external stimuli and one of the most important is UV radiation. The UVA and UVB spectra differ in their biological effects and in their depth of penetration through the skin layers.
Šitum, Mirna, Pustišek, Nives
openaire +2 more sources
Collegium antropologicum, 2010 Halo nevi, also termed Sutton nevi, are defined as benign melanocytic nevi that are surrounded by an area of depigmentation resembling a halo. Halo nevi are common in children and young adults, with a mean age at onset of 15 years. The incidence in the population is estimated to be approximately 1%. Affected individuals frequently have multiple lesions
Pustišek, Nives +3 more
openaire +3 more sources
Scientific ReportsCyanobacteria possess special defense mechanisms to protect themselves against ultraviolet (UV) radiation. This study combines experimental and computational methods to identify the role of protective strategies in Nostoc species against UV-C radiation ...
Pardis Irankhahi +5 more
doaj +1 more source
Some new results on the frequency characteristics on quartz crystals irradiated by ionizing and particle radiations [PDF]
The frequency behavior of AT-cut quartz crystals irradiated by X -, gamma rays and fast neutrons. Initial instability in frequency for gamma and neutron irradiated crystals was found.
Bahadur, H., Parshad, R.
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Correlations and linkages between the sun and the earth's atmosphere: Needed measurements and observations [PDF]
A study was conducted to identify the sequence of processes that lead from some change in solar input to the earth to a change in tropospheric circulation and weather. Topics discussed include: inputs from the sun, the solar wind, and the magnetosphere;
Kellogg, W. W.
core +1 more source
یافتههای نوین در علوم زیستی, 2015 Effects of ozone depletion and increase of UV radiation have been studied by many researchers. The aim of this study was to investigate the effects of UV-B radiation on Melissa officinalis L. as well as the impact of salicylic acid and magnetic fields in
Latifeh Pourakbar, Mehdi Abedzadeh
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