Results 71 to 80 of about 109,058 (278)
The effect of linear lighting systems on the productive performance and egg quality of laying hens
Poultry Science, 2020 The low uniformity in light distribution provided by conventional lighting systems installed in laying poultry can compromise the productive performance and egg quality of laying hens.
Juliana de S.G. Barros +4 more
doaj +1 more source
INFLUENCE OF LIGHT EMITTING DIODE (LED) ON MICROALGAE
Journal of Chemical Engineering and Industrial Biotechnology, 2020 There are 150,000 microalgae species. Scientists identified and classified 30,000 species. Only 10–15 species are utilised and studied for wastewater treatment, biogas upgrading, biomass production, and lipid content. LED can raise microalgae performance to the highest.
Sajjad Al-amshawee +1 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.The integration of photovoltaic (PV) systems into building structures introduces distinct fire risks with critical implications for occupant safety. This review examines the key fire hazards associated with PV implementation and explores mitigation strategies, including flame‐retardant additives.
Florian Ollagnon +7 more
wiley +1 more source
Complex Evaluation of Light Sources in Case of Electric Power Cost Increase
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2008 The paper gives complex evaluation of efficiency of incandescent lamps, luminescent and light-emitting-diode (LED) light sources in case of electric power price increase.
Y. N. Kolesnik, A. V. Ivaneychik
doaj
Detection of nitrite by flow injection analysis using a novel paired emitter-detector diode (PEDD) as a photometric detector [PDF]
, 2007 An inexpensive flow injection analysis system for determining low concentration levels of nitrite employing the Griess reagent spectrophotometric method is reported.
Diamond, Dermot +3 more
core +1 more source
DEEP ULTRAVIOLET LIGHT EMITTING DIODES (DUV LEDS)
Journal 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 range, from yellow to deep-UV. AlGaN has a direct bandgap that extends into the deep-UV range; the device-quality
openaire +3 more sources
Infrared Light-Emitting Diode (LED) Effects on Orthodontic Tooth Movement [PDF]
Brazilian Dental Journal, 2019 Abstract The present study aimed to analyze the effect of LED phototherapy on the presence of hyalinization and root resorption during orthodontic tooth movement (OTM) in rats and to measure the amount of tooth movement. Eighty rats were allocated into two groups: LED and control (CON), where the LED rats were irradiated with infrared LED (850 nm, 30 ...
Simone Peixe Friedrichsdorf +4 more
openaire +5 more sources
Emergence of Light‐Transforming Layered Hybrid Halide Perovskites
Advanced Functional Materials, EarlyView.The emerging class of light‐transforming layered halide perovskite materials is reviewed, outlining challenges for their development and perspectives toward application in the future. Abstract Layered hybrid halide perovskites (LHPs) have attracted considerable attention in optoelectronics.
Ghewa AlSabeh, Jovana V. Milić
wiley +1 more source
Optimal overlayer inspired by Photuris firefly improves light-extraction efficiency of existing light-emitting diodes [PDF]
, 2013 In this paper the design, fabrication and characterization of a bioinspired overlayer deposited on a GaN LED is described. The purpose of this overlayer is to improve light extraction into air from the diode's high refractive-index active material.
Aimez, Vincent +6 more
core +2 more sources
Light-Emitting Diodes (LEDs) for Miniature Hydroponic Lettuce
Optics and Photonics Journal, 2013 There is growing concern about food safety, environmental impact, and efficient energy usage in agricultural production systems. Producing lettuce under artificial lighting could be a solution addressing these concerns. Light-emitting diodes (LEDs) offer the advantages of a narrow light spectrum, low power consumption, and little heat production.
Kent Kobayashi +2 more
openaire +2 more sources