Results 131 to 140 of about 67,202 (260)

Stretchable, Tough, and Luminescent Perovskite Molecular Ferroelectric Composite: Empowering Reliable Self‐Powered Motion Sensing in High Humidity and Subzero Temperatures

Advanced Science, EarlyView.
A flexible molecular ferroelectric composite is fabricated via in situ growth of luminescent DMAA‐MnCl3 ferroelectric crystals within a SEBS/SIS double‐polymer matrix. It delivers 7.54 MPa tensile strength, over 1200% tensile strain, durable piezoelectric motion sensing, and excellent harsh‐environment stability for all‐weather wearable biomechanical ...
Shuangqing Li, Zhe‐Kun Xu, Zheng Xing, Jin‐Wang Liu, Yong‐Quan Wu, Peng‐Fei Li, Zhong‐Xia Wang   +6 more
wiley   +1 more source

Robust Position-Only Null Steering in Linear Antenna Arrays via a Nature-Inspired Optimizer for Wireless Communication. [PDF]

Biomimetics (Basel)
Yildiz A, Akdagli A, Karaomerlioglu F, Yüksek G, Izci D, Tümen V, Ekinci S, Salman M, Al-Rabayah M.   +8 more
europepmc   +1 more source

Space‐Time Metasurface Antenna Enabled High‐Dimensional Electromagnetic Modulation for Intrinsic Physical Layer Security

Advanced Science, EarlyView.
The concept of high‐dimensional EM modulation using the STMA for physical layer secure communication is illustrated in figure. The STMA consists of a series of programmable unit cells, with 1‐bit reconfigurable phase states (0/π). The STMA is excited by a monochromatic continuous wave (CW) at frequency fc and controlled by a field‐programmable gate ...
Xinyu Fang, Yiqing Sun, Chenfeng Yang, Siran Wang, Zheng Xing Wang, Kaixu Wang, Geng‐Bo Wu   +6 more
wiley   +1 more source

High-capacity and secure inter-satellite optical wireless communication using 2D DPS-OCDMA. [PDF]

Sci Rep
Armghan A, Abd El-Mottaleb SA, Aldkeelalah SS, Chaoui S, Emara A, Singh M.   +5 more
europepmc   +1 more source

Hierarchical Physical‐Cyber Encryption via Metasurface‐Encoded Holographic Keys

Advanced Science, EarlyView.
ABSTRACT Physical‐layer encryption based on metasurfaces has emerged as a promising alternative to conventional algorithmic cryptography by embedding security into physical processes. However, most existing metasurface‐based encryption schemes operate within single‐stage or static frameworks, where correct physical illumination directly reveals the ...
Zhen Liu, Changhong Dai, Wei Zhu, Ruisheng Yang, Bohan Zhang, Lei Zhang, Bobo Du, Shengxiang Wang, Guangwei Hu   +8 more
wiley   +1 more source

A Compact Trowel-Shaped Antenna for Next-Generation 6G Wireless Communication Systems. [PDF]

Sensors (Basel)
Soothar P, Wang H, Dayo ZA, Kakepoto FG, Shaikh FK.   +4 more
europepmc   +1 more source

Highly Repeatable Fibrous Crack‐Based Strain Sensor for Multichannel Continuous Tremor Monitoring in Parkinson's Disease and Essential Tremor

Advanced Science, EarlyView.
This study proposes a patch‐type tremor monitoring system based on high‐repeatable fibrous crack‐based strain sensor, capable of simultaneously measuring tremor in multiple locations such as thumb, index, and wrist. Through clinical trials involving Parkinson's disease and essential tremor patients, the proposed system demonstrates its potential as a ...
Chiwon Song, Chan Park, Juyoun Lee, Hojoong Kim, Jeongbeom Kang, Byeongjun Lee, Cheoljeong Park, Jungmin Kim, Haran Lee, Yoon Jae Lee, Min‐Kyung Yeo, Woon‐Hong Yeo, Seong J. Cho   +12 more
wiley   +1 more source

Amplitude only nulling of linear antenna arrays for 5G/6G wireless communication by using honey formation optimization. [PDF]

Sci Rep
Akdagli A, Yildiz A, Karaomerlioglu F, Yüksek G, Ekinci S, Izci D, Rashdan M, Salman M.   +7 more
europepmc   +1 more source

Leading the Pack: Next‐Generation Batteries for Humanoid Robotics

Advanced Science, EarlyView.
Humanoid robots challenge traditional and anticipated energy technologies. Humanoid robot benchmarks of runtimes and energy demands for industry applications inform humanoid robot battery design choices at the cell level, pack level, and system level.
Matthew Bergschneider, Jiaqi Ke, Jin Luo, Laisuo Su, Thomas Campbell, Yue Zhou, Kyeongjae Cho   +6 more
wiley   +1 more source

Compact dual-band four-port MIMO patch antenna with inverse U-shaped resonators and defected ground structure for wireless communication applications. [PDF]

Sci Rep
Naik KK, Phaneendra CN, Zidan MS, Zakaria Z, Al-Gburi AJA.   +4 more
europepmc   +1 more source