Results 31 to 40 of about 87,522 (313)
The role of far-red light (FR) in photomorphogenesis and its use in greenhouse plant production
Acta Agriculturae Slovenica, 2020 Light energy is one of the most important factors regulating the growth and development of plants. In greenhouses and other controlled- environments in which the natural radiation intensities are often low, plant production relies on supplementary ...
Bojka KUMP
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Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link [PDF]
Sensors, 2020 This paper proposes a low-complexity and energy-efficient light emitting diode (LED)-to-LED communication system for Internet of Things (IoT) devices with data rates up to 200 kbps over an error-free transmission distance up to 7 cm. The system is based on off-the-shelf red-green-blue (RGB) LEDs, of which the red sub-LED is employed as photodetector in
Mariam M. Galal +3 more
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LED Utilization in Cotton Color Measurement
Journal of Natural Fibers, 2017 The color measurement of the cotton fiber is very important property of the cotton fiber and it plays important role in grading of cotton. Globally used color parameters of cotton fiber are Rd and +b.
Michal Vik, Nayab Khan, Martina Vikova
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Nghiên cứu tính chất phát quang của ion đất hiếm Ce3+ trong thủy tinh aluminoborate
Tạp chí Khoa học và Công nghệ, 2023 Vật liệu thủy tinh oxit với thành phần Na2O:Al2O3:BaO:B2O3 (NABB) pha tạp ion Ce3+ với các nồng độ từ 0,1% đến 2,5% được tổng hợp bằng phương pháp nóng chảy.
Trịnh Ngọc Đạt +4 more
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Mid-infrared LEDs versus thermal emitters in IR dynamic scene simulation devices [PDF]
, 2006 In a radical departure from conventional thermal emitter-based dynamic IR scene simulation devices, we have tested InAsSbP/InAs LEDs grown by liquid phase epitaxy and tuned at several peak-emitting wavelengths inside the mid-IR band.
Zinovchuk A. V., Malyutenko V. K.
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The Possibilities for Deployment Eco-Friendly Indoor Wireless Networks Based on LiFi Technology
Proceedings of the International Conference on Applied Innovations in IT, 2020 Recently, traffic demand for wireless data has increased the need for extending the spectrum to transmit numerous signals. However, the bandwidth of radio waves has been scrunching in the last few years with tremendous development of technology such as ...
Oleksandr Romanov +2 more
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New light sources for in-vitro potato micropropagation
Bioscience Journal, 2015 This research work objective was to optimize the micropropagation of potato cultivars through the use of new light sources in the growth rooms. Treatments consisted of three potato cultivars (Asterix, Catucha and Macaca), and five light sources (blue ...
Paulo Sergio Gomes Rocha +2 more
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HortScience, 2020 Passion fruit is a commercial crop of economic importance worldwide, with recent increases in demand for high-quality plants for commercial production.
Ying-Chun Chen +2 more
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LED Receiver Impedance and Its Effects on LED-LED Visible Light Communications [PDF]
2018 IEEE International Conference on Communications Workshops (ICC Workshops), 2018 This paper experimentally demonstrates that the AC impedance spectrum of the LED as a photodetector heavily depends on the received optical power, which may cause the impedance mismatch between the LED and the post trans-impedance amplifier. The optical power dependent impedance of the LED is well fitted by a modified dispersive carrier transport model
Shang-Nin Li, Boyang Huang, Zhengyuan Xu
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Technique and setup for diagnostics of p-n junction–package thermal resistance in high-power gallium nitride LEDs [PDF]
, 2012 We present a setup and procedure of studying p-n junction–package thermal resistance in high-power light-emitting diodes (LEDs) from their thermal relaxation. A set of LEDs mounted on a metal-core printed circuit board (MCPCB) were studied.
Kudryk Y. Y. +3 more
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