Results 1 to 10 of about 59,244 (113)

Smart Dimmable LED Lighting Systems [PDF]

open access: yesSensors, 2022
This paper proposes energy-efficient solutions for the smart light-emitting diode (LED) lighting system, which provides minimal energy consumption while simultaneously satisfying illuminance requirements of the users in a typical office space.
Milica Petkovic   +7 more
doaj   +2 more sources

LED Lighting to Produce High-Quality Ornamental Plants [PDF]

open access: yesPlants, 2023
The flexibility of LED technology, in terms of energy efficiency, robustness, compactness, long lifetime, and low heat emission, as well as its applications as a sole source or supplemental lighting system, offers interesting potential, giving the ...
Alice Trivellini   +3 more
doaj   +2 more sources

LED lighting (350-650nm) undermines human visual performance unless supplemented by wider spectra (400-1500nm+) like daylight [PDF]

open access: yesScientific Reports
Life evolved under broad spectrum sunlight, from ultraviolet to infrared (300–2500 nm). This spectrally balanced light sculpted life’s physiology and metabolism.
Edward M. Barrett, Glen Jeffery
doaj   +2 more sources

Evaluation on LED lighting driving power supply for urban rail vehicles based on adaptive PID algorithm [PDF]

open access: yesHeliyon
LED (Light Emitting Diode) lighting has the characteristics of efficiency, environmental protection, energy conservation, and so on. It is more and more widely used in the lighting system of urban rail vehicles. The research on the LED lighting system of
Jie Huang, Rong Nie
doaj   +2 more sources

Modeling of Selected Lighting Parameters of LED Panel

open access: yesEnergies, 2020
Semiconductor light sources are currently the fastest growing and most energy efficient group of light sources used in lighting technology. Their lighting parameters, such as luminous flux, correlated color temperature and color rendering index depend on
Krzysztof Baran   +3 more
doaj   +3 more sources

Using LED lighting to illuminate variety shows [PDF]

open access: yesMaǧallaẗ Al-Turāṯ wa Al-Taṣmīm, 2023
Research Abstract The research deals with a topic ( Using LED lighting to illuminate variety shows ) and how to distribute LED lighting with cameras in various variety programs.The research is divided into two main axes:The first axis: television ...
Mohamed Magdy
doaj   +1 more source

Design and Implementation of High Reliability Space Lighting Equipment

open access: yesJournal of Harbin University of Science and Technology, 2022
In the manned spaceflight project, LED is used as the light source of the lighting subsystem of the manned spaceflight vehicle for the first time.
LIU Ming, HOU Zuo-xun, GAO Yuan
doaj   +1 more source

Performance and preference of broilers provided dual light warmth

open access: yesJournal of Applied Poultry Research, 2021
SUMMARY: The present studies evaluated the use of 2 common poultry specific Light Emitting Diodes (LEDs) of differing light warmth (2,700 K and 5,000 K). Additionally, the studies evaluated the effects of providing a choice between LED bulbs of differing
D.J. Aldridge, C.G. Scanes, M.T. Kidd
doaj   +1 more source

Energy efficiency: A proposal [PDF]

open access: yesTehnika, 2015
Increase of energy efficiency in Serbia is one of the priority tasks. Sector of electric lighting offers great opportunities for increasing energy efficiency due to the rapid development of LED technology.
Pendić Zoran R.   +3 more
doaj   +1 more source

Increase of Yield, Lycopene, and Lutein Content in Tomatoes Grown Under Continuous PAR Spectrum LED Lighting

open access: yesFrontiers in Plant Science, 2021
Light emitting diodes (LEDs) are an energy efficient alternative to high-pressure sodium (HPS) lighting in tomato cultivation. In the past years, we have learned a lot about the effect of red and blue LEDs on plant growth and yield of tomatoes.
Dennis Dannehl   +3 more
doaj   +1 more source

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