Results 61 to 70 of about 19,836 (292)

Full‐Domain 3D Digital Twin for Comprehensive Analysis and Validation of Standing Surface Acoustic Wave Generation on LiNbO3 Substrate

Advanced Materials Technologies, EarlyView.
A full‐domain 3D digital twin of a standing surface acoustic wave (SSAW) device on 128° YX LiNbO3 is developed and experimentally validated. The predictive power of the model is confirmed by electrical characterisation and laser Doppler vibrometry measurements, which show excellent agreement with simulations.
Felice Alberto Sfregola, Annalisa Volpe, Andrea Zifarelli, Massimiliano Benetti, Domenico Cannatà, Vincenzo Spagnolo, Pietro Patimisco   +6 more
wiley   +1 more source

Power Allocation in UAV-Enabled Relaying Systems for Secure Communications

IEEE Access, 2019
Unmanned aerial vehicle (UAV)-enabled mobile relaying technique is a promising approach in providing high data rate transmission. Limitations of the UAV's hardware and the line-of-sight link of the air-to-ground channel make UAV ground communication more
Guen Sun, Na Li, Xiaofeng Tao, Huici Wu
doaj   +1 more source

Synergistic EMI Shielding: The Role of Nanoparticle Size and Alternating Bi‐Layer Coatings in Hybrid Fabrics

Advanced Materials Technologies, EarlyView.
This study fabricates three types of hybrid knitted fabrics: AgNPs of varying sizes are synthesized on the fabric, MXene nanosheets are applied via spray coating, and alternating AgNPs/MXene bi‐layers are added. The effects of particle size, material type, and bi‐layer structure on EMI shielding (≈60 dB), as well as breathability, air permeability, and
Hamed Mohammadi Mofarah, Mutalifu Abulikemu, Hyung Woo Choi, Mehr Khalid Rahmani, Jihane Karib, Ghassan E. Jabbour   +5 more
wiley   +1 more source

Toward Enhancing Chiro‐Optical and Magneto‐Optical Properties of Magnetic Nanocrystals by Surface Plasmons

Advanced Optical Materials, EarlyView.
Here, recent progress is highlighted in colloidal magnetoplasmonic hybrid nanomaterials, with a focus on chiral plasmonics. Metal nanocrystals with intrinsic chiroptical features can lead to a combination of chiral plasmonics and magneto‐optics effects when interacting with the magnetic counterpart, offering a foundation for systematically designing ...
Miguel Comesaña‐Hermo, Eloi Haltz, Alessio Gabbani, Francesco Pineider, Verónica Salgueiriño   +4 more
wiley   +1 more source

Joint Offloading and Computing Design in Wireless Powered Mobile-Edge Computing Systems With Full-Duplex Relaying

IEEE Access, 2018
Simultaneous wireless information and power transfer (SWIPT) and mobile-edge computing (MEC) are promising technologies in Internet of Things era, which can enhance the self-sustainability and computation capability of user equipment, respectively.
Zhigang Wen, Kaixi Yang, Xiaoqing Liu, Shan Li, Junwei Zou   +4 more
doaj   +1 more source

Multi‐Channel Quantum Dot Single‐Photon Sources on a Fiber‐Integrated Platform

Advanced Optical Materials, EarlyView.
A breakthrough in achieving a multiple, tunable array of quantum photonic devices is presented. By combining an optimal nanophotonic cavity, individual device transfer process, and integrated electrodes on a V‐groove fiber, the all‐fiber integrated system exhibits capabilities of low‐temperature cooling, efficient single‐photon transmission, selective ...
Woong Bae Jeon, Dong Hyun Park, Jong Sung Moon, Kyu‐Young Kim, Mohamed Benyoucef, Je‐Hyung Kim   +5 more
wiley   +1 more source

Wireless Multicast of Virtual Reality Videos With MPEG-I Format

IEEE Access, 2019
Deploying virtual reality (VR) streaming systems over wireless networks can provide an immersive environment for users without behavioral restrictions, and thus has drawn considerable attentions recently.
Zhang Zhilong, Zhanghui Ma, Yan Sun, Danpu Liu   +3 more
doaj   +1 more source

Smart Theremin Based on Electromagnetic Metasurfaces for Fine Dual‐Hand Perception

Advanced Optical Materials, EarlyView.
The proposed Meta‐Theremin leverages a frequency‐spatial multiplexing metasurface to enable robust dual‐hand perception by shielding environmental noise and confining EM fields to interaction zones. Its physics‐informed neural network decouples hand‐specific echoes, enhancing accuracy.
Che Liu, Yisu Huang, Mengyuan Zhang, Yiming Ma, Wenming Yu, Jiajing Wu, Lianlin Li, Qian Ma, Tie Jun Cui   +8 more
wiley   +1 more source

Topological Valley Photonic Waveguides: Scattering Matrix Evaluation for Linear Computing

Advanced Photonics Research, EarlyView.
This research is focused on the design of a 6‐port junction via valley photonic crystal waveguides to achieve equal power splitting of an incident signal towards three other ports. An in‐depth study is carried out to extract its corresponding scattering matrix.
Christian Johnson-Richards, Alex Yakovlev, Victor Pacheco-Peña   +2 more
wiley   +1 more source

Private Key and Group Key Generation Using Correlated Sources and Wiretap Broadcast Channel in Presence of One-Way Public Communication

IEEE Access, 2019
Encryption with shared key is one of the methods to ensure secure communication. To meet the requirements of keys, this paper investigates the problem of generating private key (PK) and group key (GK) using correlated sources and discrete memoryless ...
Shixun Gong, Xiaofeng Tao, Na Li, Haowei Wang   +3 more
doaj   +1 more source