Results 91 to 100 of about 236,046 (296)
Short Communications: Para Clinical Sciences
RUHS Journal of Health Sciences, 2023 Postgraduate Students
doaj +1 more source
Self‐Powered Visible‐Blind Graphene/NiO/ZnO UV‐C Photodiodes
Advanced Optical Materials, EarlyView.“A scalable architecture for self‐powered UV‐C photodiodes integrates defect‐engineered p‐NiO/n‐ZnO heterojunctions with highly UV‐C transparent graphene anodes. The type‐II band alignment combined with the built‐in electrical field enables robust zero‐bias charge separation.
Umut Kaya +5 more
wiley +1 more source
Optical Manipulation of Whispering Gallery Mode Microlasers for Controlled Cellular Delivery
Advanced Optical Materials, EarlyView.Optically trapped whispering‑gallery microlasers are precisely positioned onto non‐phagocytic mammalian cells to report local refractive‑index changes in real time. Time‑dependent wavelength shifts reveal successive stages from membrane contact to internalization.
Soraya Caixeiro +3 more
wiley +1 more source
EURASIP Journal on Advances in Signal Processing, 2005 The application of ultra-wideband (UWB) technology to low-cost short-range communications presents unique challenges to the communications engineer. The impact of the US FCC's regulations and the characteristics of the low-power UWB propagation channels
Pozar David M +2 more
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On the Average Secrecy Performance of Satellite Networks in Short Packet Communication Systems
This paper investigates the secrecy performance of satellite networks in short packet communication systems under shadowed Rician fading (SRF). We derive a lower bound on the average achievable secrecy rate in the finite blocklength regime (FBL) and ...
Briones, Graciela Corral +2 more
core +1 more source
Exploiting Full Duplex for Device-to-Device Communications in Heterogeneous Networks
, 2015 In this article, we discuss full duplex for heterogenous networks that accommodate the coexistence of device-to-device communications. The short link distance and lower transmit power of device-to-device communications make them excellent candidates to ...
Li, S.n +11 more
core +1 more source
Red‐Sensitive Photopolymerizable Glass for Fabrication of Holographic Optical Elements
Advanced Optical Materials, EarlyView.This study presents a novel photopolymerizable glass capable of optical patterning using red‐wavelength laser exposure. Red‐light sensitivity was achieved through the incorporation of a photoinitiating system composed of methylene blue (MB) and N‐phenylglycine (NPG).
Jamshed Aftab +2 more
wiley +1 more source
Non-Uniform Microstrip Antenna Array for DSRC in Single-Lane Structures
Sensors, 2016 Vehicular communications have been subject to a great development in recent years, with multiple applications, such as electronic payments, improving the convenience and comfort of drivers.
Tiago Varum, João N. Matos, Pedro Pinho
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High Efficiency 3‐Tandem Top Emitting Pure‐Blue OLEDs Beyond the BT.2020 Blue Standard
Advanced Optical Materials, EarlyView.We report a high‐efficiency ultrapure‐blue 3‐tandem TEOLED through synergistic optimization of a narrowband MR‐TADF emitter, Purcell‐based cavity design, and pure Ag cathode/CPL structure. The optimized device achieves 463 nm emission, an ultranarrow FWHM of 10 nm, CIE y of 0.040, and a blue index of 1,596 cd/A/y, surpassing the BT.2020 blue standard ...
Jun Hyeog Oh +5 more
wiley +1 more source
Advanced Robotics Research, EarlyView.Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley +1 more source