Results 11 to 20 of about 60,145 (311)

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

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

Improving Mini-LED Pattern Quality by Using Distributed Bragg Reflector and Digital Twin Technology

Crystals, 2022
Fine-pitch backlight technology is rapidly evolving along with display technology, and chips are increasingly designed for direct integration with modules.
Shu-Hsiu Chang, Che-Hsuan Huang, Chatherine Langpoklakpam, Konthoujam James Singh, Chien-Chung Lin, Hao-Chung Kuo   +5 more
doaj   +1 more source

Emergence of Nanoplatelet Light-Emitting Diodes [PDF]

Materials, 2018
Since 2014, nanoplatelet light-emitting diodes (NPL-LEDs) have been emerged as a new kind of LEDs. At first, NPL-LEDs are mainly realized by CdSe based NPLs. Since 2016, hybrid organic-inorganic perovskite NPLs are found to be effective to develop NPL-LEDs. In 2017, all-inorganic perovskite NPLs are also demonstrated for NPL-LEDs.
Xiao, Peng, Huang, Junhua, Yan, Dong, Luo, Dongxiang, Yuan, Jian, Liu, Baiquan, Liang, Dong   +6 more
openaire   +3 more sources

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

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

An experimental investigation of a 100-W high-power light-emitting diode array using vapor chamber–based plate

Advances in Mechanical Engineering, 2015
In this study, a compact 100-W input power light-emitting diode array vapor chamber–based plate has been fabricated to investigate the thermal performance.
Ping Zhang, Jianhua Zeng, Xianping Chen, Miao Cai, Jing Xiao, Daoguo Yang   +5 more
doaj   +1 more source

Comparisons among the diagnostic methods used for the detection of extra-pulmonary tuberculosis in Bangladesh

International Journal of Mycobacteriology, 2012
The present study was an attempt to establish a suitable method for the effective diagnosis of extra-pulmonary tuberculosis in Bangladesh. In this regard, detection of Mycobacterium tuberculosis from 390 different extra-pulmonary specimens was performed ...
Saurab Kishore Munshi, Farjana Rahman, S M. Mostofa Kamal, Rashed Noor   +3 more
doaj   +1 more source

Nanofabrication of gallium nitride photonic crystal light-emitting diodes [PDF]

, 2010
We describe a comparison of nanofabrication technologies for the fabrication of 2D photonic crystal structures on GaN/InGaN blue LEDs. Such devices exhibit enhanced brightness and the possibility of controlling the angular emission profile of emitted ...
Rahman, Faiz, Rahman, F., De La Rue, Richard M., Parsons, K., Z. Khokhar, Ali, J. Abbott, Steve, D. Dawson, Martin, P. Johnson, Nigel, Abbott, Steve J., Watson, I.M., Charlton, Martin D.B., MacIntyre, D.S., Watson, I.A., MacIntyre, Douglas S., Xiong, C., Charlton, Martin, Johnson, N.P., Hubbard, G., De La Rue, R.M., Gong, Zheng, M. De La Rue, Richard, Charlton, M.D.B., Gu, E., Johnson, Nigel P, Abbott, S.J., S. Macintyre, Douglas, M. Watson, Ian, Macintyre, Douglas S, Tillin, Martin, Johnson, Nigel P., Massoubre, D., Rue, Richard M. De La, Xiong, Chang, Khokhar, A.Z., Watson, Ian M., Gu, Erdan, D.B. Charlton, Martin, Hubbard, Graham, Dawson, M.D., Gong, Z., Tillin, M., Massoubre, David, Khokhar, A.Z, Khokhar, Ali Z., Dawson, Martin D., Parsons, Keith, Charlton, M.D.B   +46 more
core   +1 more source

Progress of display performances: AR, VR, QLED, and OLED

Journal of Information Display, 2020
In 2019, the device performances of the display technologies were largely advanced by the development of new materials and of the device architecture and driving scheme.
Ho Jin Jang, Jun Yeob Lee, Jaeyun Kim, Jeonghun Kwak, Jae-Hyeung Park   +4 more
doaj   +1 more source