Results 11 to 20 of about 586,501 (293)

Retinal movement (light and dark adaptation) and the effect of ultraviolet radiation in it and histological structure in two teleost species fishes [PDF]

open access: yesمجلة التربية والعلم, 2005
the rctinomotor movement (light & dark adaptation) of two teleosispecios : Chalccilburmisinossufansisand Noemctcheihi§ angora, have been studied. The adaptation carried out in a photoperiod of 12: 12 hrs dark : light. Under visible light intensity of 700
Ali Abd, Taghreed Saber
doaj   +1 more source

Ultraviolet Light Protection: Is It Really Enough?

open access: yesAntioxidants, 2022
Our current understanding of the pathogenesis of skin aging includes the role of ultraviolet light, visible light, infrared, pollution, cigarette smoke and other environmental exposures. The mechanism of action common to these exposures is the disruption
Patricia K. Farris, Giuseppe Valacchi
doaj   +1 more source

Metastructure-inspired ultraviolet and blue light filter

open access: yesAIP Advances, 2020
Currently, many studies are being conducted to apply optical metamaterials to the transmittance control of visible light and near infrared wavelengths.
Yong Kyu Choi   +5 more
doaj   +1 more source

Ultraviolet photoelectrochemical photodetector based on GaN/Cu2O core–shell nanowire p–n heterojunctions

open access: yesAIP Advances, 2022
An efficient, self-powered ultraviolet photoelectrochemical photodetector based on n-GaN/p-Cu2O core–shell nanowire p–n heterojunctions is demonstrated. The photocurrent under solar light is 2–3 times larger than that for GaN nanowires. The photocurrents
Mingrui Luo   +5 more
doaj   +1 more source

Pulsed Ultraviolet Light Treatment of Chicken Parts

open access: yesMeat and Muscle Biology, 2021
With increasing production and consumption of chicken, it is appropriate to investigate the functionality and effectiveness of microbial reduction interventions and the qualitative effects they have on food.
Ali Demirci   +3 more
doaj   +2 more sources

The Lepidoptera of Fowler Woods State Nature Preserve, Richland County, Ohio. [PDF]

open access: yes, 2017
A survey of the Lepidoptera occurring at Fowler Woods State Nature Preserve in Richland County, Ohio was conducted from 1986 to 1988. Sampling was done by ultraviolet light traps, mercury vapor light and ultraviolet light and collecting sheet, bait traps,
Metzler, Eric H, Rings, Roy W
core   +2 more sources

DEEP ULTRAVIOLET LIGHT EMITTING DIODES (DUV LEDS) [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2018
There are a variety of applications for devices that extend into the deep-UV, including biological agent detection and optical storage. The nitride material system is a set of semiconducting compounds that have wavelengths that span a broad ...
Băjenescu, Titu-Marius I.
doaj   +1 more source

The Ability of Specific-wavelength LED Lights to Attract Night-flying Insects [PDF]

open access: yes, 2018
This paper describes a portable collecting light, designed by the authors, that weighs 0.3 kg, is powered by 8 AA batteries, and uses 9 light-emitting diodes (LEDs) to attract night-flying insects.
Houghton, David, Zemel, Ryan S
core   +3 more sources

High-Speed Light Signal Transmitters for Optical Communication Based on Ultraviolet Radiation

open access: yesApplied Sciences, 2020
A light signal transmitter based on ultraviolet radiation is realized on GaN-on-silicon platform. The light signal transmitter with ultra-small active area is fabricated by a double-etching process.
Xin Li   +7 more
doaj   +1 more source

GaN ultraviolet photodetector with petal-like β-Ga2O3 microcrystalline layer

open access: yesAIP Advances, 2020
A GaN ultraviolet photodetector with a petal-like β-Ga2O3 microcrystalline layer was prepared on the GaN template using electrochemical anodizing and annealing processes.
Xilin Su   +8 more
doaj   +1 more source

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