Results 1 to 10 of about 139,586 (335)
Humans perceive flicker artifacts at 500 Hz [PDF]
Scientific Reports, 2015 Humans perceive a stable average intensity image without flicker artifacts when a television or monitor updates at a sufficiently fast rate. This rate, known as the critical flicker fusion rate, has been studied for both spatially uniform lights, and ...
Davis, James +2 more
exaly +4 more sources
Gaze-contingent flicker pupil perimetry detects scotomas in patients with cerebral visual impairments or glaucoma [PDF]
Frontiers in Neurology, 2018 The pupillary light reflex is weaker for stimuli presented inside as compared to outside absolute scotomas. Pupillograph perimetry could thus be an objective measure of impaired visual processing.
Bergsma, Douwe P +6 more
core +9 more sources
Voltage Fluctuations and Flicker in Prosumer PV Installation
Energies, 2022 In this paper, we present problems connected with voltage fluctuations in low-voltage networks caused by small PV sources installed in an LV network. For the purpose of analysis, high-resolution data gathered at the output of real PV sources for 4 months
Krzysztof Łowczowski, Zbigniew Nadolny
doaj +1 more source
Light Emitting Diode Lighting Flicker, its Impact on Health and the Need to Minimise it [PDF]
Journal of Clinical and Diagnostic Research, 2019 The existing technologies in Light Emitting Diode (LED) lighting sometimes cause flicker at frequencies that may have adverse health effects. Although, not always obvious to the human eye, it can make a difference in certain circumstances.
Sunil Batra +2 more
doaj +1 more source
Affine quantum super Schur-Weyl duality [PDF]
, 2020 The Schur-Weyl duality, which started as the study of the commuting actions of the symmetric group $S_d$ and $\mathrm{GL}(n,\mathbb{C})$ on $V^{\otimes d}$ where $V=\mathbb{C}^n$, was extended by Drinfeld and Jimbo to the context of the finite Iwahori ...
Flicker, Y.
core +2 more sources
AJOG Global Reports, 2023 BACKGROUND: Opioids are routinely prescribed to patients postoperatively after cesarean delivery. With rates of cesarean deliveries increasing globally and the opioid epidemic continuing to have deleterious effects, finding methods to achieve effective ...
Ememobong O. Ubom, MD +6 more
doaj +1 more source
Analysis of supply parameters of single- and double-string LED lamps with integrated AC direct capacitorless drivers [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 Thanks to a very high luminous efficacy of LED lamps (over 160 lm/W) they are the most preferred light sources in lighting applications today. The useful lifetime of LED modules exceeds 50,000 hours. Chromatic parameters of lamps making use of SSL (Solid
J. Chęciński, Z. Filus
doaj +1 more source
Sensors, 2022 A new technique to reduce flicker noise generated in light-fidelity (Li-Fi) transmission links based on the white light-emitting diode (LED) is proposed. Here, flicker noise with a frequency of 120 Hz, which is twice the frequency of AC power (60 Hz), is
Yong-Yuk Won, Jeungmo Kang
doaj +1 more source
Identification of the flicker source in the power supply systems
Известия высших учебных заведений: Проблемы энергетики, 2022 THE PURPOSE. To consider issues related to the study of methods for determining the sources of violations of the quality of electrical energy in power supply systems, in particular consumers which create rapid voltage changes or voltage fluctuations that
V. I. Biryulin +2 more
doaj +1 more source
Energies, 2020 The present study analyzed light emitting diodes (LEDs) as an output load and used a Taylor series to describe the characteristic curve based on the exponential characteristic of voltage and current. A prototype circuit of a flyback LED driver system was
Ming-Chang Tsou, Ming-Tse Kuo
doaj +1 more source