Results 41 to 50 of about 8,247 (230)
User acceptance studies for LED office lighting: light spectrum and correlated colour temperature [PDF]
, 2015 During the last decade, lighting technology based on light-emitting diodes (LEDs) has advanced rapidly and is paving the way for the application of LED lighting in offices. Two experiments were carried out to study user preference for different LED light
Islam, Mohammad Shahidul
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Quasisolitons in self-diffusive excitable systems, or Why asymmetric diffusivity does not violate the Second Law [PDF]
, 2016 Solitons, defined as nonlinear waves which can reflect from boundaries or transmit through each other, are found in conservative, fully integrable systems.
Biktashev, V. N., Tsyganov, M. A.
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AIP Advances, 2021 Deep ultraviolet light-emitting diodes (DUV LEDs) are promising light sources for disinfection, especially during the pandemic of novel coronavirus (COVID-19). Despite much effort in the development of DUV LEDs, the device temperature and ideality factor
Yanjun Liao +6 more
doaj +1 more source
Nanoscale Research Letters, 2018 This work reports a nearly efficiency-droop-free AlGaN-based deep ultraviolet light-emitting diode (DUV LED) emitting in the peak wavelength of 270 nm. The DUV LED utilizes a specifically designed superlattice p-type electron blocking layer (p-EBL).
Zi-Hui Zhang +7 more
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Band-Engineered Structural Design of High-Performance Deep-Ultraviolet Light-Emitting Diodes
Crystals, 2021 In this study, systematic structural design was investigated numerically to probe into the cross-relating influences of n-AlGaN layer, quantum barrier (QB), and electron-blocking layer (EBL) on the output performance of AlGaN deep-ultraviolet (DUV) light-
Jih-Yuan Chang +5 more
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Subjective preference of light colour and LED lighting [PDF]
, 2015 The main objective of this work is to investigate the subjective preferences for lighting environments under different LED spectral power distributions (SPDs) and to analyse the different existing colour quality descriptors in order to recommend the best
Dangol, Rajendra
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Nanoscale Research Letters, 2019 AlGaN-based deep ultraviolet (DUV) light-emitting diodes (LEDs) suffer from electron overflow and insufficient hole injection. In this paper, novel DUV LED structures with superlattice electron deceleration layer (SEDL) is proposed to decelerate the ...
Jiahui Hu +9 more
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A Lattice Construction of Chiral Gauge Theories [PDF]
, 1995 We formulate chiral gauge theories non-perturbatively, using two different cuttoffs for the fermions and gauge bosons. We use a lattice with spacing $b$ to regulate the gauge fields in standard fashion, while computing the chiral fermion determinant on a
't Hooft +37 more
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Scientific Reports, 2021 Smart integrative lighting systems aim to support human health and wellbeing by capitalising on the light-induced effects on circadian rhythms, sleep, and cognitive functions, while optimising the light’s visual aspects like colour fidelity, visual ...
Babak Zandi +5 more
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Cathodoluminescence of stacking fault bound excitons for local probing of the exciton diffusion length in single GaN nanowires [PDF]
, 2014 We perform correlated studies of individual GaN nanowires in scanning electron microscopy combined to low temperature cathodoluminescence, microphotoluminescence, and scanning transmission electron microscopy.
Bruno Daudin +5 more
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