Results 11 to 20 of about 2,770,622 (284)
Visible light. Part II: Photoprotection against visible and ultraviolet light
Journal of the American Academy of Dermatology, 2021 Cutaneous photobiology studies have focused primarily on the ultraviolet portion of the solar spectrum. Visible light (VL), which comprises 50% of the electromagnetic radiation that reaches the Earth's surface and, as discussed in Part I of this CME, has cutaneous biologic effects, such as pigment darkening and erythema.
Amaris N, Geisler +5 more
openaire +3 more sources
Recent Advances in Indoor Localization via Visible Lights: A Survey
Sensors, 2020 Because of the limitations of the Global Positioning System (GPS) in indoor scenarios, various types of indoor positioning or localization technologies have been proposed and deployed.
A B M Mohaimenur Rahman +2 more
doaj +1 more source
High-Speed Indoor Navigation System based on Visible Light and Mobile Phone
IEEE Photonics Journal, 2017 Visible light positioning (VLP) is widely believed to be a cost-effective answer to the growing demand for real-time indoor positioning. However, due to the high computational cost of image processing, most existing VLC-based systems fail to deliver ...
Junbin Fang +7 more
doaj +1 more source
IEEE Photonics Journal, 2020 We put forward and experimentally demonstrate a second order machine-learning (ML) based visible-light-positioning (VLP) system using simple linear interpolation algorithm to reduce the training samples required in the ML algorithm.
Yu-Chun Wu +8 more
doaj +1 more source
Cathodoluminescence and electron microscopy of red quantum dots used for display applications [PDF]
, 2015 Cathodoluminescent imaging of the visible light emitted from quantum dots is reported. The shape and uniformity of individual particles is observed in the STEM electron image and the image of the particles created from their visible light collected ...
Coe-Sullivan, S, Fern, G, Silver, J
core +1 more source
IEEE Photonics Journal, 2020 We put forward and demonstrate a angle-of-arrival (AOA) based visible-light-positioning (VLP) system using quadrant-solar-cell (QSC) and third-order ridge regression machine learning (RRML) to improve the positioning accuracy.
Chong-You Hong +9 more
doaj +1 more source
Machine Learning Assisted Visible Light Sensing of the Rotation of a Robotic Arm
IEEE Access, 2021 With the rise of LED (light-emitting diode)-based luminaires, artificial lighting has become a technology platform, which, besides providing illumination, also provides communication and positioning functionalities. Apart from this, most recently Visible
Kushal Madane +4 more
doaj +1 more source
Resonant Visible Light Modulation with Graphene [PDF]
, 2015 Fast modulation and switching of light at visible and near-infrared (vis-NIR) frequencies is of utmost importance for optical signal processing and sensing technologies.
Ashcroft N. W. +53 more
core +4 more sources
Visible Light-Activated PhotoCORMs [PDF]
Inorganics, 2017 Despite its well-known toxicity, carbon monoxide (CO) is now recognized as a potential therapeutic agent. Its inherent toxicity, however, has limited clinical applications because uncontrolled inhalation of the gas leads to severe systemic derangements in higher organisms. In order to obviate life-threatening effects and administer the gas by bypassing
Kottelat, Emmanuel, Zobi, Fabio
openaire +2 more sources
A new technique for infrared scintillation measurements [PDF]
, 2017 open7siWe propose a new technique to measure the infrared scintillation light yield of rare earth doped crystals by comparing it to near UV–visible scintillation of a calibrated Pr:(Lu0.75Y0.25)3Al5O12 sample.
Borghesani, A. F. +6 more
core +3 more sources