Results 111 to 120 of about 24,719 (256)

Machine Learning Driven Window Blinds Inspired Porous Carbon‐Based Flake for Ultra‐Broadband Electromagnetic Wave Absorption

Advanced Science, EarlyView.
Inspired by the regulation mechanism of window blinds, this study designs an electromagnetic wave‐absorbing metamaterial. By introducing the magneto‐electric coupling concept and integrating it with an artificial intelligence‐based data‐driven collaborative optimization strategy, the material optimizes impedance matching performance and enhances loss ...
Zhe Wang, Wanchong Li, Lu Feng, Zaiqing Yang, Shicheng Jin, Dongxu Zhao, Xiaoyong Wu, Yan Wang, Yu Mao, Jinsong Zhang   +9 more
wiley   +1 more source

Design of Wideband FMCW Radar Transceiver System Using Photonic Elements. [PDF]

Micromachines (Basel), 2023
Yoo S, Bae Y, Jang S.
europepmc   +1 more source

Random Time‐Space Coding Metasurfaces for Spatial Control of the Temporal Statistics of Electromagnetic Fields

Advanced Science, EarlyView.
A probabilistic framework based on random time‐space coding metasurfaces enables control of the spatial distribution of electromagnetic fields temporal statistics. By tailoring the marginal and joint distributions of random codes, electromagnetic fields with desired mean and variance patterns are realized, enabling simultaneous transmission and jamming.
Jia Cheng Li, Jiang Han Bao, Che Liu, Tie Jun Cui   +3 more
wiley   +1 more source

Pacinian Corpuscle‐Inspired Strain Conversion Enables Ultrasensitive, Linear, and Broad‐Range Piezoelectric Sensing for Cardiovascular Health Monitoring

Advanced Science, EarlyView.
A bioinspired piezoelectric sensor mimicking Pacinian corpuscles is developed to enable ultrasensitive and linear pressure sensing. A multilayer grooved architecture converts normal pressure into in‐plane strain, delivering high sensitivity, wide linear range, and efficient energy harvesting, enabling high‐fidelity wrist pulse monitoring and ...
Qi Yang, Zhongqian Song, Shengjie Liu, Yingming Ma, Weiyan Li, Huijun Kong, Cuiyu Liu, Yu Bao, Li Niu   +8 more
wiley   +1 more source

Designand Implementation of a Novel Wideband HF Communication System Based on NC-OFDM and Probabilistic Shaping. [PDF]

Sensors (Basel)
Yang R, Bai Y, Hu Z.
europepmc   +1 more source

A State-of-the-Art Review on CMOS Radio Frequency Power Amplifiers for Wireless Communication Systems. [PDF]

Micromachines (Basel), 2023
Hamid SS, Mariappan S, Rajendran J, Rawat AS, Rhaffor NA, Kumar N, Nathan A, Yarman BS.   +7 more
europepmc   +1 more source

Tunable Sound Absorption via Evanescent‐Wave Coupling in Asymmetric Bilayer Metasurfaces

Advanced Science, EarlyView.
Tunable sound absorption is realized through a bilayer metasurface system governed by evanescent‐wave coupling. This work demonstrates that such evanescent‐wave coupling provides a controllable scattering channel that destructively interferes with the specular reflection.
Pyung Sik Ma, Hyung Jin Lee
wiley   +1 more source

Portable Multichannel Measurement System for Real-Time Microplastics Assessment Using Microwave Sensors. [PDF]

Sensors (Basel)
Barrancos A, Rosinha D, Assis J, Rosado LS.   +3 more
europepmc   +1 more source

Ion‐Confinement‐Assisted Erasure Purifies Oxidized MXene for Reuse

Advanced Science, EarlyView.
An erasure‐purification strategy removes surface‐derived TiO2 from oxidized Ti3C2Tx MXene by ion‐confinement‐induced interfacial conversion to soluble titanates, followed by brief acid washing. The scalable process enables approximately 70% material recovery, restores electrical conductivity, and recovers functional performance, including high ...
Xuefeng Zhang, Yujia Wu, Huayu Xu, Jinyi Ye, Yanfang Yang, Haohan Wu, Jiayi Lu, Hao Li, Dongxiao Kan, Jingfeng Wang, Hui Kang, Zhimin Fan   +11 more
wiley   +1 more source

A Broadband Millimeter-Wave Circularly Polarized Folded Reflectarray Antenna Based on Transmissive Linear-to-Circular Polarization Converter. [PDF]

Micromachines (Basel)
Cao Y, Wang Z, Wang Q, Du M, Zhang M.
europepmc   +1 more source