Results 101 to 110 of about 418,049 (343)

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

Advanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To, Jiachen Du, Cyril Decroze, Laure Huitema, Aurelian Crunteanu, Hang Wong   +5 more
wiley   +1 more source

Radio Frequency Fingerprint-Identification Learning Method Based-On LMMSE Channel Estimation for Internet of Vehicles

Mathematics
As a typical representative of complex networks, the Internet of Vehicles (IoV) is more vulnerable to malicious attacks due to the mobility and complex environment of devices, which requires a secure and efficient authentication mechanism.
Lina Sheng, Yao Xu, Yan Li, Yang Yang, Nan Fu   +4 more
doaj   +1 more source

Near‐Sensor Analog Computing via Monolithic 3D Piezoelectric Sensor–FeFET for Tactile Sensing System

Advanced Functional Materials, EarlyView.
A monolithic 3D‐integrated tactile system combines a piezoelectric sensor and ferroelectric field‐effect transistor (FeFET) to process both static and dynamic pressure signals directly at the sensor node. The system enables in‐sensor analog noise filtering with multi‐level memory states, achieving high sensitivity and ultra‐low power operation (≈10 nW),
Woongjin Kim, Seungyeob Kim, Jinwook Ha, Taeseung Jung, Yunjeong Kim, Jinho Ahn, Sanghun Jeon   +6 more
wiley   +1 more source

Antenna design of temperature measurement system based on SAW temperature sensor

Dianzi Jishu Yingyong, 2018
In order to measure the junction temperature of power equipment, a novel strategy of temperature measurement based on surface acoustic wave passive wireless temperature sensor is designed. The antennas and the matching methods of antennas and sensors are
Qi Bensheng, Han Yan, Tan Junyan, Cai Chunhua   +3 more
doaj   +1 more source

A Smart Magnetically Actuated Flip‐Disc Programmable Metasurface with Ultralow Power Consumption for Real‐Time Channel Control

Advanced Functional Materials, EarlyView.
The study proposes a 1‐bit programmable metasurface based on flip‐disc display, named flip‐disc metasurface (FD‐MTS). This new design enables ultralow energy consumption while maintaining coding patterns. It also exhibits high scalability and multifunctional flexibility.
Jiang Han Bao, Che Liu, Jia Cheng Li, Zhen Hao Fu, Yi Su Huang, Si Qi Huang, Lei Zhang, Jian Wei You, Tie Jun Cui   +8 more
wiley   +1 more source

Universal Neuromorphic Element: NbOx Memristor with Co‐Existing Volatile, Non‐Volatile, and Threshold Switching

Advanced Functional Materials, EarlyView.
A W/NbOx/Pt memristor demonstrates the coexistence of volatile, non‐volatile, and threshold switching characteristics. Volatile switching serves as a reservoir computing layer, providing dynamic short‐term processing. Non‐volatile switching, stabilized through ISPVA, improves reliable long‐term readout. Threshold switching operates as a leaky integrate
Ungbin Byun, Hyesung Na, Sungjun Kim
wiley   +1 more source

Reinforced Concrete‐Inspired Multiscale Hierarchical Metamaterial Composite for Synergistic Enhancement Across Thermal, Electromagnetic, and Mechanical Domains

Advanced Functional Materials, EarlyView.
A structurally integrated multiscale hierarchical metamaterial composite (MHMC), inspired by the synergistic architecture of reinforced concrete, achieves simultaneous enhancement of thermal, electromagnetic, and mechanical functionalities. By combining a carbon black‐based mechanical metamaterial with a porosity‐graded cellulose acetate aerogel, this ...
Jeongwoo Lee, Junyeol Choi, Junyong Seo, Jaemin Lee, Dowon Noh, Hoyoung Jang, Hwanju Lim, Jinwoo Park, Run Hu, Wonjoon Choi   +9 more
wiley   +1 more source

Cottonseed‐Derived Reusable Bio‐Carbon Gel Ink for DIW Printing Soft Electronic Textiles

Advanced Materials, EarlyView.
A reusable carbon‐gel ink, incorporating cottonseed peptone as a natural mediator, enables cross‐linked ionic polymer networks for advanced conductivity, stability, and biocompatibility. Compatible with direct‐ink‐writing, it facilitates flexible electronics on polymeric and textile substrates for multifunctional applications, including motion sensing,
King Yan Chung, Di Tan, Ziyu He, Xiao Li, Jian Lu, Qingjun Yang, Xinlong Liu, Bingang Xu   +7 more
wiley   +1 more source

Efficient Data Integrity Verification Using CRC Based on HDFS in Cloud Storage

ITM Web of Conferences, 2017
Data integrity verification is becoming a major challenge in cloud storage which can’t be ignored. This paper proposes an optimized variant of CRC (Checker Redundancy Cyclic) verification algorithm based on HDFS to improve the efficiency of data ...
Xia Yun-Hao, Hong Han-Shu, Lin Guo-Feng, Sun Zhi-Xin   +3 more
doaj   +1 more source

Internet of things

, 2017
Peer ...
Salazar Soler, Jorge, Silvestre Bergés, Santiago   +1 more
openaire   +1 more source