Results 81 to 90 of about 332,732 (276)

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

Advanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi, Jimin Park, Won Jun Song, Soohwan An, Seonggyu Choe, Byeong‐Rak Keum, Min Young Kim, Dae Hee Hwang, Young‐Geun Park, Sung‐Won Kim, Sangyul Baik, Gwang‐Bum Im, Younghoon Lee   +12 more
wiley   +1 more source

Over 100-Gb/s V-Band Single-Carrier PDM-64QAM Fiber-Wireless-Integration System

IEEE Photonics Journal, 2016
We experimentally demonstrate an ultra-large-capacity, high-spectral-efficiency fiber-wireless-integration system within the V-band (50–75 GHz), employing single-carrier polarization-division-multiplexing 64-ary quadrature-amplitude-modulation ...
Xinying Li, Yuming Xu, Jianjun Yu
doaj   +1 more source

Current driven electrostatic and electromagnetic ion cyclotron instabilities [PDF]

Growth rates and parameter dependences are calculated for the current driven instabilities of electrostatic (with finite-beta corrections) and electromagnetic ion cyclotron waves.
Forslund, D. W., Kennel, C. F., Kindel, J. M.   +2 more
core   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Space-Frequency Multiplexing Wireless Communication Based on a Single-Layer Dual-Band Programmable Metasurface

Electromagnetic Science
Programmable metasurfaces (PMs) have significantly advanced electromagnetic (EM) wave manipulation by enabling real-time and digital reconfigurability.
Yining Zheng, Lei Zhang, Bingbing Zhu, Xiaoqing Chen, Haotian Shi, Shi He, Shuo Liu, Tiejun Cui   +7 more
doaj   +1 more source

A Colloidal Quantum Dot Thermistor and Bolometer

Advanced Materials, EarlyView.
This work introduces colloidal quantum dot thermistors employing a potential barrier structure to tune the activation energy of transport and hence the temperature coefficient of resistance (TCR). Upon integration with plasmonic absorbers, the CQD‐based bolometer device enables room‐temperature wavelength‐selective photodetection across the mid‐ to ...
Gaurav Kumar, Mariona Dalmases, Nima Taghipour, Rajesh Bera, Guy L. Whitworth, Goretti Torres Perez, Miguel Dosil, Gerasimos Konstantatos   +7 more
wiley   +1 more source

Simultaneously Intelligent Sensing and Beamforming Based on an Adaptive Information Metasurface

Advanced Science
Due to its ability to adapt to a variety of electromagnetic (EM) environments, the sensing‐enabled metasurface has garnered significant attention. However, large‐scale EM‐field sensing to obtain more information is still very challenging.
Rui Zhe Jiang, Qian Ma, Ze Gu, Jing Cheng Liang, Qiang Xiao, Qiang Cheng, Tie Jun Cui   +6 more
doaj   +1 more source

Hyperspectral Anomaly Detection via Merging Total Variation Into Low-Rank Representation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Anomaly detection (AD) aiming to locate targets distinct from the surrounding background spectra remains a challenging task in hyperspectral applications.
Linwei Li, Ziyu Wu, Bin Wang
doaj   +1 more source

Radar Image Colorization: Converting Single-Polarization to Fully Polarimetric Using Deep Neural Networks

IEEE Access, 2018
Numerous radar polarimetry theories and polarimetric synthetic aperture radar (PolSAR) processing methods have been developed. However, the vast majority of SAR images are not fully polarimetric (full-pol).
Qian Song, Feng Xu, Ya-Qiu Jin
doaj   +1 more source