Buscar
Mostrando ítems 1-10 de 16
Ratios of UV, PAR and NIR components to global solar radiation measured at Botucatu site in Brazil
(Pergamon-Elsevier B.V. Ltd, 2011-01-01)
The relationships between the four radiant fluxes are analyzed based on a 4 year data archive of hourly and daily global ultraviolet (I(UV)), photosynthetically active-PAR (I(PAR)), near infrared (I(NIR)) and broadband ...
UV Dose Investigation for Imersed Lamp Purifier for Electronic Ballast UV Lamps design
(Ieee, 2014-01-01)
This paper presents a methodology of an electronic ballasts design for UV lamps filtering system, providing adjustable UV dose in order to ensure the inactivation of microorganisms' reproduction that are harmful to human ...
UV dose investigation for imersed lamp purifier for electronic ballast UV lamps design
(2014-01-01)
This paper presents a methodology of an electronic ballasts design for UV lamps filtering system, providing adjustable UV dose in order to ensure the inactivation of microorganisms' reproduction that are harmful to human ...
Design of high power LED-based UVA emission system and a photosensitive substance for clinical application in corneal radiation
(Spie-int Soc Optical Engineering, 2015-01-01)
This work presents an innovative cross-linking procedure to keratoconus treatment, a corneal disease. It includes the development of an ultraviolet controlled emission portable device based on LED source and a new formulation ...
Equations for estimation of solar UV, PAR and IV in polyethylene greenhouse
(Fundacion General Univ Politecnica Madrid, 2014-01-01)
In this work are shown annual and monthly evolutions of (H) over bar (IN)(G), (H) over bar (IN)(UV), (H) over bar (IN)(PAR), (H) over bar (IN)(IV) solar radiations and (K) over bar (UV), (K) over bar (PAR) e (K) over bar ...
Histological study of hamster buccal mucosa following topical application of DMBA and exposition to low power 337 nm laser light
(2003-09-29)
The aim of the present work is to analyze the histological changes on hamster buccal mucosa caused by the topical use of 7,12-dimethylbenzanthracene (DMBA) and exposition to a 220 μJ/pulse nitrogen laser light (@ 337 nm) ...
Understanding UV sensor performance in ZnO TFTs through the application of multivariate analysis
(2018-01-01)
Zinc oxide (ZnO) thin film transistors are well suited to UV sensing application because they absorb predominantly in the UV region due to the wide bandgap (Eg = 3.37 eV) and possess a large exciton binding energy (60 meV) ...
Understanding UV sensor performance in ZnO TFTs through the application of multivariate analysis
(Ieee, 2018-01-01)
Zinc oxide (ZnO) thin film transistors are well suited to UV sensing application because they absorb predominantly in the UV region due to the wide bandgap (Eg = 3.37 eV) and possess a large exciton binding energy (60 meV) ...
UV exposure of polymeric geomembranes
(Zhejiang Univ Press, 2008-01-01)
The break of polymer chemical bonds may occur due to penetration of sun short wavelengths. In sanitary landfills for instance, ultraviolet radiation affects uncovered materials and can be dangerous during the installation ...
UV exposure of polymeric geomembranes
(2008-01-01)
The break of polymer chemical bonds may occur due to penetration of sun short wavelengths. In sanitary landfills for instance, ultraviolet radiation affects uncovered materials and can be dangerous during the installation ...