Results 11 to 20 of about 28,266 (262)

Light-Emitting Diodes (LEDS): Implications for Safety

Health Physics, 2020
Abstract Since the original ICNIRP Statement was published in 2000, there have been significant improvements in the efficiency and radiance (i.e., optical radiation emission) of LEDs. The most important improvement is the development of ‘white’ LEDs that can be used as general lighting sources, which are more efficient than traditional ...
Ziegelberger G., Miller S. A., O'Hagan J., Okuno T., Schulmeister K., Sliney D., Stuck B., Croft R., Feychting M., Green A. C., Hirata A., D'Inzeo G., Marino C., Oftedal G., van Rongen E., Roosli M., Sienkiewicz Z., Watanabe S.   +17 more
openaire   +5 more sources

Study of Postharvest Quality and Antioxidant Capacity of Freshly Cut Amaranth after Blue LED Light Treatment

Plants, 2021
Freshly cut vegetables are susceptible to microbial contamination and oxidation during handling and storage. Hence, light-emitting diode technology can effectively inhibit microbial growth and improve antioxidant enzyme activity.
Siyuan Jin, Zhaoyang Ding, Jing Xie
doaj   +1 more source

Investigation of Quantum Dot Color Filter Micro-LED Display

Photonic Sensors, 2023
In this work, we present the investigation of the quantum dot color filter (QDCF) micro-light emitting diode (micro-LED) display. Green and red quantum dot photoresist (QDPR) materials are patterned into a pixelated array and precisely bonded with an all-
Xuhui Peng, Yang Zeng, Sitao Huo, Zhenyuan Yang, Xiaoping Huang, Qing Zhao   +5 more
doaj   +1 more source

Effects of Light-Emitting Diodes (LEDs) on Growth, Nitrates and Osmoprotectant Content in Microgreens of Aromatic and Medicinal Plants

Horticulturae, 2023
Microgreens are receiving increasing attention due to their high content of bioactive components and their importance to human health. These emerging food products can be obtained from the seeds of different plant species, including aromatic herbs ...
Hamza El Haddaji, Mustapha Akodad, Ali Skalli, Abdelmajid Moumen, Said Bellahcen, Sliman Elhani, Miguel Urrestarazu, Mitja Kolar, Jernej Imperl, Petranka Petrova, Mourad Baghour   +10 more
doaj   +1 more source

Savings in Cooling Energy with a Thermal Management System for LED Lighting in Office Buildings

Energies, 2015
Light-emitting diode (LED) lighting should be considered for lighting efficiency enhancement, however, waste heat from light-emitting diode (LED) lighting increases the internal cooling load during the summer season.
Byung-Lip Ahn, Ji-Woo Park, Seunghwan Yoo, Jonghun Kim, Seung-Bok Leigh, Cheol-Yong Jang   +5 more
doaj   +1 more source

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

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

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

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