Results 61 to 70 of about 25,330 (194)

Engineered Growth of Perovskite Nanocrystals on Graphene with Subsequent TiO2 Integration for Enhanced Photodetection and Environmental Catalysis

open access: yesAdvanced Optical Materials, Volume 13, Issue 22, August 5, 2025.
The growth of perovskite nanocrystals on graphene, coupled with an optically active and protective oxide interface, enhances photodetection and environmental catalysis by facilitating efficient charge separation, improved light absorption, and enhanced structural stability, offering a promising approach for advanced optoelectronic and catalytic ...
Thi Thuong Thuong Nguyen   +8 more
wiley   +1 more source

IMPLEMENTASI VISIBLE LIGHT COMMUNICATION (VLC) UNTUK KOMUNIKASI SUARA

open access: yes, 2018
Sistem VLC bergerak pada sistem komunikasi wireless, yang dikembangkan menjadi sistem komunikasi LiFi untuk kemajuan teknologi masa depan. Hingga saat ini pengembangan VLC masih belum dikenal masyarakat umum terutama untuk komunikasi suara. Pada proyek akhir ini dirancang dan direalisasikan sistem komunikasi LiFi untuk komunikasi suara.
Rinaldi, Gusti   +2 more
openaire   +2 more sources

Age‐Related Changes in Marmoset (Callithrix jacchus) Feeding Behavior and Physiology: Insights of Masticatory and Swallowing Functions

open access: yesAmerican Journal of Primatology, Volume 87, Issue 8, August 2025.
This study investigated the feeding and swallowing physiology of 26 marmosets (1 month to 19 years old). Using a non‐invasive cineradiography setup, the study examined key age‐related differences in oral and pharyngeal swallowing phases across four age groups: infant, adult, old, and very old.
Max Sarmet   +7 more
wiley   +1 more source

Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications

open access: yesAdvanced Photonics Research, Volume 6, Issue 7, July 2025.
Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang   +7 more
wiley   +1 more source

Non-Orthogonal Multiple Access for Visible Light Communications

open access: yes, 2015
The main limitation of visible light communication (VLC) is the narrow modulation bandwidth, which reduces the achievable data rates. In this paper, we apply the non-orthogonal multiple access (NOMA) scheme to enhance the achievable throughput in high ...
Kapinas, Vasileios M.   +3 more
core   +1 more source

Data Transmission via Visible Light Communication (VLC) Technique

open access: yesInternational Journal of Innovative Research in Science, Engineering and Technology, 2016
2 ABSTRACT: Light Emitting Diodes are set to penetrate many areas of everyday life. An interesting property of these devices in addition to their lightening capabilities , is that they can also be utilised for data transmissions as well. LED's require low power for their operation and have very high switching speeds.
openaire   +1 more source

Singlet, Doublet, and Triplet Emissions of Diarylamine‐Modified Bismuth Pincer Complexes

open access: yesChemistry – A European Journal, Volume 31, Issue 30, May 27, 2025.
Reversibly oxidizable diarylamine‐modified phenyl‐bis(dimethylaminomethyl) pincer bismuth complexes and their radical cations emit via excited singlet and triplet or doublet excited states at 77 K in solvent matrices, in solution, or in the solid state.
Marcel Geppert   +4 more
wiley   +1 more source

Comparative Test of Novel Fluorescent Optical Antennas for LED‐ and Laser‐Based Optical Wireless Communications

open access: yesAdvanced Optical Materials, Volume 13, Issue 13, May 5, 2025.
New fluorescent optical antennas are realized and tested for diverse Optical Wireless Communication (OWC) applications. The fluorescent concentrator slabs, based on different organic fluorophores, convert and convey the digital data conveyed through intensity modulation of incoming light toward a small‐area photodiode.
Marco Meucci   +8 more
wiley   +1 more source

Debunking war information disorder: A case study in assessing the use of multimedia verification tools

open access: yesJournal of the Association for Information Science and Technology, Volume 76, Issue 5, Page 752-769, May 2025.
Abstract This paper investigates the use of multimedia verification, in particular, computational tools and Open‐source Intelligence (OSINT) methods, for verifying online multimedia content in the context of the ongoing wars in Ukraine and Gaza. Our study examines the workflows and tools used by several fact‐checkers and journalists working at Faktisk,
Sohail Ahmed Khan   +6 more
wiley   +1 more source

Performance Analysis of SIMO‐UVLC System in Mix‐Water Medium

open access: yesEngineering Reports, Volume 7, Issue 4, April 2025.
An autonomous underwater vehicle (AUV) communicates with a submarine that is mounted M‐ary of LEDs. It is considered that AUV transmits optical signals through mixed water layers within strong turbulence channel conditions while maintaining pointing error.
Mohammad Furqan Ali   +1 more
wiley   +1 more source

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