Results 1 to 10 of about 4,045 (165)

Full-Range LED Dimming Driver With Ultrahigh Frequency PWM Shunt Dimming Control

open access: yesIEEE Access, 2020
This paper explores an ultrahigh dimming frequency Light-Emitting Diode (LED) pulse width modulation (PWM) shunt dimming driver that achieves the full-range dimming.
Yi-Feng Wang   +2 more
exaly   +3 more sources

Solar dimming decreased maize yield potential on the North China Plain

open access: yesFood and Energy Security, 2020
Solar dimming has been increasing in rapidly developing regions (China and India) and threatening food security. Although previous studies have summarized the effects of climate change‐associated increases in temperature on agriculture, few have examined
Xinping Chen   +2 more
exaly   +2 more sources

The influence of dimming-induced luminance change on driving safety in tunnels

open access: yesHeliyon, 2023
Although dimming the light in tunnels brings salient benefits to energy saving, the effects of dimming-induced luminance changes on driving safety have been rarely explored.
Ke Wu
exaly   +3 more sources

High-Resolution Dimmable Augmented Spectral-Efficiency Discrete Multi-Tone Architecture Based on Hybrid Pulse-Width Modulation in Visible-Light Communications [PDF]

open access: yesSensors
Dimming control is an indispensable functionality for visible-light communication (VLC) that enables both illumination and data transmission. However, how to achieve both high-resolution dimming control and spectral-efficient communication is still an ...
Yi Liu   +3 more
doaj   +2 more sources

Effects of dimming light-emitting diode street lights on light-opportunistic and light-averse bats in suburban habitats [PDF]

open access: yesRoyal Society Open Science, 2018
Emerging lighting technologies provide opportunities for reducing carbon footprints, and for biodiversity conservation. In addition to installing light-emitting diode street lights, many local authorities are also dimming street lights.
Elizabeth G. Rowse   +2 more
doaj   +1 more source

An Assessment of Global Dimming and Brightening during 1984–2018 Using the FORTH Radiative Transfer Model and ISCCP Satellite and MERRA-2 Reanalysis Data

open access: yesAtmosphere, 2023
In this study, an assessment of the FORTH radiative transfer model (RTM) surface solar radiation (SSR) as well as its interdecadal changes (Δ(SSR)), namely global dimming and brightening (GDB), is performed during the 35-year period of 1984–2018 ...
Michael Stamatis   +5 more
doaj   +1 more source

Interdecadal Changes of the MERRA-2 Incoming Surface Solar Radiation (SSR) and Evaluation against GEBA & BSRN Stations

open access: yesApplied Sciences, 2022
This study assesses and evaluates the 40-year (1980–2019) Modern-Era Retrospective Analysis for Research and Applications v.2 (MERRA-2) surface solar radiation (SSR) as well as its interdecadal changes (Δ(SSR)) against high quality reference surface ...
Michael Stamatis   +5 more
doaj   +1 more source

Constant Transmission Efficiency Dimming Control Scheme for VLC Systems

open access: yesPhotonics, 2020
As a novel mode of indoor wireless communication, visible light communication (VLC) should consider the illumination functions besides the primary communication function.
Jia-Ning Guo   +3 more
doaj   +1 more source

Comparison of an intermittent, short-dawn/dusk photoperiod with an increasing, long-dawn/dusk photoperiod on broiler growth, stress, and welfare

open access: yesPoultry Science, 2020
Photoperiod has been shown to significantly affect broiler performance. However, the effects of the traditional 1-min dimming period on broiler growth and welfare are unclear.
Jill R. Nelson   +3 more
doaj   +1 more source

Internet of light: Technologies and applications

open access: yesIntelligent and Converged Networks, 2022
Intelligent lighting has attracted lots of research interests to investigate all the possible schemes to support this need as human has spent more and more time indoor. Semiconductor-based illumination network is an ideal bearer to carry on this mission.
Jian Song   +9 more
doaj   +1 more source

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