Results 21 to 30 of about 924,592 (305)

Coupling adsorption by NiO nanopowder with UV/H2O2 process for Cr(VI) removal [PDF]

open access: yesJournal of Advances in Environmental Health Research, 2017
Chromium enters surface and ground waters through the wastewater of electroplating, textile, metallurgical, dye production, and other industries, leading to numerous adverse health effects.
Majid Hashemi   +7 more
doaj   +1 more source

Spectral Observation of Solar Photosynthetically Active Radiation on Clear Days in Qinghai-Xizang Plateau

open access: yesGaoyuan qixiang
Photosynthetically 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
doaj   +1 more source

THE PERMEABILITY OF THE SCLERAL TISSUE FOR ULTRAVIOLET A IN THE EXPERIMENT

open access: yesOftalʹmologiâ, 2017
Purpose: to evaluate the permeability of the scleral tissue for ultraviolet A (UVA).Materials and Methods. The study was conducted on 15 cadaver porcine eyes. Rectangular scleral flap 12*15 mm was cut out from each eyeball.
M. M. Bikbov   +5 more
doaj   +1 more source

Habitable Zones and UV Habitable Zones around Host Stars

open access: yes, 2010
Ultraviolet radiation is a double-edged sword to life. If it is too strong, the terrestrial biological systems will be damaged. And if it is too weak, the synthesis of many biochemical compounds can not go along.
A. Segura   +45 more
core   +1 more source

Enhancing Light Extraction Efficiency of Vertical Emission of AlGaN Nanowire Light Emitting Diodes With Photonic Crystal

open access: yesIEEE Photonics Journal, 2019
AlGaN alloys have been widely used to make ultraviolet light-emitting diodes (UV-LEDs) because its energy bandgap covers 200–360 nm wavelength range.
Pengwei Du, Zhiyuan Cheng
doaj   +1 more source

Studying the Nonlinear Optical Properties of Fluoride Laser Host Materials in the Ultraviolet Wavelength Region

open access: yesApplied Sciences, 2021
Fluoride host materials doped with trivalent cerium ions have previously been demonstrated as successful laser materials in the ultraviolet wavelength region.
Duong Van Pham   +6 more
doaj   +1 more source

Ultraviolet technology application in urban water supply and wastewater treatment in China: Issues, challenges and future directions

open access: yesWater Research X
This study thoroughly explores the application of Ultraviolet (UV) water treatment technology in urban wastewater treatment and water supply in China, highlighting its crucial role in enhancing water quality safety.
Wenjun Sun   +7 more
doaj   +1 more source

A Study of UV Resistance of a Water-based Polyurethane Lacquer Containing Nano Ceria [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2013
Cerium oxide (Ceria) nano particle, as photodegradation prevention agent was studied in water-based polyurethane clear coat  systems. Polyurethane coatings show superior weathering resistance compared with acrylic melamine systems.
Arash Saadat-Monfared, Mohsen Mohseni
doaj   +1 more source

Drying Behavior and Curcuminoids Changes in Turmeric Slices during Drying under Simulated Solar Radiation as Influenced by Different Transparent Cover Materials

open access: yesFoods, 2022
Dried turmeric is used as a spice and traditional medicine. The common drying methods for turmeric (Curcuma longa L.) are sun drying and solar drying.
Nilobon Komonsing   +4 more
doaj   +1 more source

Comparing Ultraviolet and Infrared-Selected Starburst Galaxies in Dust Obscuration and Luminosity

open access: yes, 2010
We present samples of starburst galaxies that represent the extremes discovered with infrared and ultraviolet observations, including 25 Markarian galaxies, 23 ultraviolet luminous galaxies discovered with GALEX, and the 50 starburst galaxies having the ...
Bernard-Salas   +45 more
core   +1 more source

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