Results 31 to 40 of about 38,871 (311)
Applied Sciences, 2017 This paper presents a single-stage alternating current (AC)/direct current (DC) light-emitting diode (LED) tube lamp driver for energy-saving indoor lighting applications; this driver features power-factor corrections and soft switching, and also ...
Chun-An Cheng +3 more
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Light emitting diode (LED) use in artificial lighting for broiler chicken production [PDF]
Engenharia Agrícola, 2014 Light emitting diode (LED) has been used in commercial poultry industry by presenting superior energy savings and providing feasibility on production process.
Mayara R. de Santana +5 more
doaj +2 more sources
EPJ Web of Conferences, 2017 Light emitting diode (LED) employed a numerous applications such as displaying information, communication, sensing, illumination and lighting. In this paper, InGaN/AlGaN based on one quantum well (1QW) light emitting diode (LED) is modeled and studied ...
Abdul Halim N. Syafira +4 more
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Photothermal detection of trace optical absorption in water by use of visible-light-emitting diodes [PDF]
, 1998 Visible light emitting diodes of three different colors have been used to detect an absorbing compound (potassiumpermanganate) in trace quantities in aqueous solution.
Johnson, Mark +2 more
core +1 more source
LEDs: Sources and Intrinsically Bandwidth-Limited Detectors
Sensors, 2017 The increasing demand for light emitting diodes (LEDs) is driven by a number of application categories, including display backlighting, communications, signage, and general illumination.
Roberto Filippo +2 more
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4.343-Gbit/s Green Semipolar (20-21) μ-LED for High Speed Visible Light Communication
IEEE Photonics Journal, 2021 A record 4.343 Gbit/s green color micro-light-emitting-diode (μ-LED) based visible-light-communication (VLC) is demonstrated. We designed and fabricated the InGaN/GaN μ-LED array with modulation bandwidth >1.1 GHz.
Yun-Han Chang +8 more
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3D modelling of enhanced surface emission using surface roughening [PDF]
, 2006 A 3D FDTD modelling is used to study the effect of surface roughening on the vertical emission of a point source emitting at lambda0=0.94 mum embedded in GaAs with a mirror behind the dipole.
I.J. Buss +24 more
core +1 more source
Brazilian Oral Research, 2005 With the development of composite resin polymerization techniques, LEDs were introduced to the market place. Based on the studied literature, the aim of this study was to evaluate, through microtensile testing, the bond strength to enamel of a composite ...
Ana Paula Morales Cobra Carvalho +1 more
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Applied Sciences, 2020 We investigated a light emitting diode (LED) lighting system applied to a water bamboo field during winter season at night, and the results indicated that this lighting system can prevent the stunting of water bamboo leaves and further assist its growth.
Vincent K. S. Hsiao +11 more
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Scientific Reports, 2017 Coherence properties of different light sources and how they affect the image quality of holographic display are investigated. Temporal coherence is related to the intrinsic spectrum bandwidth of the light source, while spatial coherence can be affected ...
Yuanbo Deng, Daping Chu
doaj +1 more source