Results 11 to 20 of about 301,541 (264)

UltraViolet freeze-in [PDF]

open access: yesJournal of High Energy Physics, 2015
24 pages. v2: Published version, correction to equilibration constraints. v3.
Elahi, Fatemeh   +2 more
openaire   +2 more sources

Observation of Highly Durable Silicone Resin for Encapsulating AlGaN-Based UVB Light-Emitting Diodes

open access: yesApplied Sciences, 2021
In this paper, we report an AlN-based ceramic lead frame (LF) with encapsulating silicone between the surface of an AlGaN-based ultraviolet-B light-emitting diode (UVB-LED) chip and a quartz glass cover; the light output power (LOP) of this structure was
Mu-Jen Lai   +9 more
doaj   +1 more source

Breakthroughs in photonics 2012: Nano-structuring and nano-fabrication enabled by extreme ultraviolet laser sources

open access: yesIEEE Photonics Journal, 2013
Two- and three-dimensional structures with submicron dimensions, such as photonic crystals, patterned magnetic media, micro- and nano-electromechanical systems (MEMs/NEMs), microfluidics chips, etc., are becoming ubiquitous in multiple applications ...
M. C. Marconi
doaj   +1 more source

Compact Plasma-Based Soft X-Ray Lasers

open access: yesIEEE 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

Effects of tocotrienol on aging skin: A systematic review

open access: yesFrontiers in Pharmacology, 2022
The skin is the largest organ of the body that protects from mechanical, thermal, and physical injury. However, the function and appearance of skin visibly degenerates with age due to its frequent exposure to harmful effects of the environment, including
Nur Izyani Ghazali   +5 more
doaj   +1 more source

Ultraviolet B but not Ultraviolet A Radiation Initiates Melanoma [PDF]

open access: yesCancer Research, 2004
Abstract Cutaneous malignant melanoma is one of the fastest increasing cancers with an incidence that has more than doubled in the last 25 years. Sunlight exposure is strongly implicated in the etiology of cutaneous malignant melanoma and the UV portion of the sunlight spectrum is considered responsible. Data are, however, conflicting
Edward C, De Fabo   +3 more
openaire   +2 more sources

Ultraviolet radiation

open access: yesChronic Diseases and Injuries in Canada, 2010
The major source of ultraviolet radiation is solar radiation or sunlight. However, exposure to artificial sources particularly through tanning salons is becoming more important in terms of human health effects, as use of these facilities by young people, has increased.
Richard P, Gallagher   +3 more
openaire   +2 more sources

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

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

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

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