Results 31 to 40 of about 182,765 (350)

Investigation of Autostereoscopic Displays Based on Various Display Technologies

Nanomaterials, 2022
The autostereoscopic display is a promising way towards three-dimensional-display technology since it allows humans to perceive stereoscopic images with naked eyes.
Fuhao Chen, Chengfeng Qiu, Zhaojun Liu
doaj   +1 more source

Absorbance based light emitting diode optical sensors and sensing devices [PDF]

, 2008
The ever increasing demand for in situ monitoring of health, environment and security has created a need for reliable, miniaturised sensing devices. To achieve this, appropriate analytical devices are required that possess operating characteristics of ...
O'Toole, Martina, Dermot Diamond, O\u27Toole, Martina, Martina O’Toole, Diamond, Dermot, Martina O’Toole   +5 more
core   +1 more source

Light-emitting diodes and photodiodes in the deep ultra-violet range for absorption photometry in liquid chromatography, capillary electrophoresis and gas sensing [PDF]

, 2016
Absorbance measurement in the deep ultra-violet range (below 300 nm) has been one of the most widely used detection methods for analytical techniques as a large number of organic compounds have strong absorption bands in the deep UV region.
Bui, Duy Anh
core   +1 more source

Light emitting diodes (LEDs) applied to microalgal production [PDF]

Trends in Biotechnology, 2014
Light-emitting diodes (LEDs) will become one of the world's most important light sources and their integration in microalgal production systems (photobioreactors) needs to be considered. LEDs can improve the quality and quantity of microalgal biomass when applied during specific growth phases.
Schulze, Peter S.C., Barreira, Luísa A., Pereira, Hugo G.C., Perales Vargas-Machuca, José Antonio, Varela, Joao C.S.   +4 more
openaire   +2 more sources

Energy efficiency assessment of power electronic drivers and LED lamps in Li-Fi communication systems

Energy Reports, 2021
Light-fidelity (Li-Fi) communication systems have gained increased concerns as new and alternative paradigm for wireless communications. Through the increased applications of light emitting diode (LED) lamps for lighting in indoor and outdoor ...
Anwaar M. Damerdash, Doaa Abdelhameed, Mokhtar Aly, Emad M. Ahmed, Mohamed A. Ahmed   +4 more
doaj   +1 more source

Wavelength-Multiplexed Polymer LEDs: Towards 55 Mb/s Organic Visible Light Communications [PDF]

, 2015
We present recent progress on visible light communication systems using polymer light-emitting diodes as the transmitters and a commercial silicon photodetector as the receiver.
Papakonstantinou, I, Bausi, Francesco, Haigh, PA, Cacialli, Franco, Haigh, Paul Anthony, Le Minh, H, Burton, A, Cacialli, F, Popoola, Wasiu Oyewole, Bausi, F, Papakonstantinou, Ioannis, Popoola, Wasiu O., Burton, Andrew, Haigh, Paul, Le Minh, Hoa, Popoola, WO   +15 more
core   +1 more source

A Single-Stage LED Tube Lamp Driver with Power-Factor Corrections and Soft Switching for Energy-Saving Indoor Lighting Applications

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, En-Chih Chang, Ching-Hsien Tseng, Tsung-Yuan Chung   +3 more
doaj   +1 more source

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, Rodrigo G. Garcia, Irenilza de A. Naas, Ibiara C. de L. A. Paz, Fabiana R. Caldara, Bruna Barreto   +5 more
doaj   +2 more sources

Doping concentration effect on performance of single QW double-heterostructure InGaN/AlGaN light emitting diode

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, Wahid M.Halim A., Ahmad Hambali N. Azura M., Rashid Shanise, Shahimin Mukhzeer M.   +4 more
doaj   +1 more source

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, Hodgkinson, Jane, Dakin, John P.   +2 more
core   +1 more source