Results 211 to 220 of about 879,091 (323)

Gallium Nitride Semiconductor Resonant Tunneling Transistor

Advanced Science, EarlyView.
Three‐terminal GaN semiconductor resonant tunneling transistors (RTTs), which comprise an double‐barrier AlN/GaN/AlN resonant tunneling diode integrated with a GaN high‐electron‐mobility transistor (HEMT) through epitaxial growth in series and parallel configuraions, respectively.
Fang Liu, JunShuai Xue, GuanLin Wu, JinYuan Yuan, JiaJia Yao, RenJie Liu, Zhuang Guo, ZeHui Li, HaoRan Hu, WenBo Sun, Cheng Zhao, ChenKai Zhang, XinYan Liu, Kai Zhang, JinCheng Zhang, Yue Hao   +15 more
wiley   +1 more source

Optimization Method for Secrecy Capacity of UAV Relaying Based on Dynamic Adjustment of Power Allocation Factor. [PDF]

Sensors (Basel)
Hao Y, Xiang Y, Du Q, Li X, Ding C, Hou D, Tian J.   +6 more
europepmc   +1 more source

A Wireless, Battery‐Free Artificial Throat Patch with Deep Learning for Emotional Speech Recognition

Advanced Science, EarlyView.
In this work, Xu and co‐workers develop a wireless, battery‐free artificial throat patch system (ATPS) consisting of a carbon nanotube‐based thin‐film strain sensor and a miniaturized flexible printed circuit board, to enable real‐time sensing of throat signals.
Bingxin Xu, Guanming Lin, Xiaohui Hong, Chuting Liu, Xinyi Qu, Kangjian Jiao, Lei Zhang, Bingzhe Xu, Jun Yan, Yancong Qiao, Xudong Lin   +10 more
wiley   +1 more source

LoRa Power Model for Energy Optimization in IoT Applications. [PDF]

Sensors (Basel)
Soler-Fernández JL, Romera O, Diéguez A, Prades JD, Alonso O.   +4 more
europepmc   +1 more source

Ammonia Gas Sensor Fabricated by Multifunctional ZnO/GO Nanocomposites for Long‐Term, Self‐Powered Monitoring

Advanced Science, EarlyView.
Zinc oxide/graphene oxide (ZnO/GO) nanocomposites serve as a gas‐sensitive film for ammonia sensing and as high‐performance electrode materials in supercapacitors, simultaneously. A wearable contact‐separated triboelectric nanogenerator is designed to directly drive the ZnO/GO nanocomposites‐based ammonia sensor.
Xingwei Wang, Likun Gong, Xiaohong Zhou
wiley   +1 more source

Optimal Resource Allocation via Unified Closed-Form Solutions for SWIPT Multi-Hop DF Relay Networks. [PDF]

Sensors (Basel)
Yu Y, Tang X, Xie G.
europepmc   +1 more source

Wafer‐Scale Room‐Temperature Processing of Lead‐Free Perovskites for Optoelectronic Applications

Advanced Science, EarlyView.
We present the first wafer‐scale, room‐temperature synthesis of lead‐free Cs3Sb2X9 (X = Br, I) perovskite films via solvent‐free magnetron sputtering. The resulting high‐performance photodetectors achieve benchmark responsivity, bandwidth, and detectivity, enabling scalable manufacturing for next‐generation optoelectronics.
Rosanna Mastria, Hoi Tung Lam, Ioannis Leontis, Sara Bonomi, Mohammed Ali Saleh Alshehri, Aurora Rizzo, Pietro Galinetto, Maddalena Patrini, Ned Taylor, Steven P. Hepplestone, Monica F. Craciun, Lorenzo Malavasi, Saverio Russo   +12 more
wiley   +1 more source

Body-resonance: transmission line-like wireless links enabling high-speed wearable communication. [PDF]

Commun Eng
Sarkar S, Huang Q, Antal S, Nath M, Sen S.   +4 more
europepmc   +1 more source

Gram‐Scale Synthesis of Hafnium‐Rich Carbon Dots for Preclinical Computed Tomography Imaging Across Various Systems

Advanced Science, EarlyView.
Hafnium (Hf)‐rich carbon dots (Hf‐rCDs) with high metal content (40.7%) and robust batch production capacity (>2 g per batch) are synthesized via a facile air‐assisted pyrolysis method. In vivo CT imaging demonstrates outstanding performance of Hf‐rCDs across multiple physiological systems and enables high‐resolution visualization of swine cervical ...
Shuo Li, Hengrui Wu, Jianqi Deng, Qiyu Sun, Yuping Zhang, Cai Zhang, Jinbin Pan, Dingbin Liu, Xuejun Zhang, Quan Zou, Xiaoyuan Chen, Shao‐Kai Sun   +11 more
wiley   +1 more source

A Systematic Review and Energy-Centric Taxonomy of Jamming Attacks and Countermeasures in Wireless Sensor Networks. [PDF]

Sensors (Basel)
Herrera-Loera C, Del-Valle-Soto C, Valdivia LJ, Vázquez-Castillo J, Mex-Perera C.   +4 more
europepmc   +1 more source