Results 221 to 230 of about 28,041 (324)

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

Advanced Photonics Research, EarlyView.
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, Chengwei Fang, Md Osman Ali, Xiaojun Chen, Safa Alghadi, Shuo Li, Jiayuan He, Sithamparanathan Kandeepan   +7 more
wiley   +1 more source

Image vaccine against steganography in encrypted domain. [PDF]

Sci Rep
Li X, Wang Z.
europepmc   +1 more source

Zero‐Power, Optical Toxic Gas and Vapor Sensors Utilizing Printed Nematic Liquid Crystal Patterns on Selectively Reactive Substrates

Advanced Sensor Research, EarlyView.
Fast response, zero‐power, text or image sensors utilizing light transmission or reflection, and no unfavorable color change judgments, are fabricated using printed nematic liquid crystals patterned on reactive alignment layers, permit ppt‐ to ppb‐level sensitivity, and were field‐tested with active firefighters.
Ryan A. Williams, Grace A. R. Rohaley, Ashwathanarayana Gowda, Gisele Pegorin, Andrea Oprandi, Denis Motovilov, Anthony Schneider, Elda Hegmann, Marianne E. Prévôt, Torsten Hegmann   +9 more
wiley   +1 more source

ChessCrypt: enhancing wireless communication security in smart cities through dynamically generated S-Box with chess-based nonlinearity. [PDF]

Sci Rep
Banga A, Iqbal N, Ikram A, Innab N, Alluhaidan AS, ElZaghmouri BM, Diab H.   +6 more
europepmc   +1 more source

High‐Sensitivity Dopamine Detection with Copper Terephthalate‐Modified Carbon Electrode

Advanced Sensor Research, EarlyView.
This work introduces a facile synthesis of a copper‐terephthalate with a flake‐like morphology and layered topology. The Cu‐BDC demonstrates exceptional performance as a glassy carbon electrode modifier, enabling highly sensitive and reliable dopamine detection.
Aleksander Ejsmont, Klaudia Bucoń, Teresa Łuczak, Joanna Goscianska   +3 more
wiley   +1 more source

Enhanced lightweight and compromised-resilient image encryption for resource constrained environments. [PDF]

PLoS One
Mehmood A, Khan AN, Natgunanathan I, Shafique A, Khan IA, Khan AUR.   +5 more
europepmc   +1 more source

Analysis of Message Injection in Stream Cipher-Based Hash Functions

, 2011
Yuto Nakano, Carlos Cid, Kazuhide Fukushima, Shinsaku Kiyomoto   +3 more
openalex   +1 more source

Fully Printed Variable Orifice Flowmeter with Built‐In Temperature Compensation for Application in Mechanical Ventilation

Advanced Sensor Research, EarlyView.
Additive manufacturing, specifically fused deposition modeling, offers an innovative approach to creating 3D‐printed variable orifice flowmeters with integrated temperature compensation. Using carbon‐black TPU, the primary component (a variable orifice) and the secondary element (a diaphragm pressure sensor) are fabricated.
Vincenzo Saroli, Emiliano Schena, Carlo Massaroni   +2 more
wiley   +1 more source

Image encryption hiding algorithm based on digital time-varying delay chaos model and compression sensing technique. [PDF]

iScience
Jin B, Fan L, Zhang B, Lei R, Liu L.
europepmc   +1 more source

Optical stream-cipher-like system for image encryption based on Michelson interferometer

, 2011
Bing Yang, Zhengjun Liu, Bo Wang, Yan Zhang, Shutian Liu   +4 more
openalex   +1 more source