Results 141 to 150 of about 8,642 (263)

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

Piezo‐Phototronic PVDF/HfO2/Nano‐Cu Heterostructured Thin Film for Flexible Self‐Powered Multimodal Sensing

Advanced Science, EarlyView.
Electrospinning a composite of PVDF, HfO2, and nano‐Cu transforms the discrete precursors into a continuous nanofiber mesh, forming a multi‐interface heterostructure with embedded nanoparticles. The presence of HfO2 and nano‐Cu at the fiber interfaces induces a highly aligned β‐phase, which enhances piezoelectric crystallinity and improves the material'
Jiawei Gu, Qiongle Peng, Xuanqi Zhong, Yi Zheng, Zhiqiang Ma, Xiaoxian Song, Ruihuan Zhang, Bao Liu, Yanhu Zhang, Zhengbao Yang   +9 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

Room‐Temperature Alane Dehydrogenation for Visible‐Light‐Driven Photocatalytic Hydrogen Supply System

Advanced Science, EarlyView.
In situ formed Al/MOF enables viable visible‐light‐driven photocatalytic dehydrogenation of alane (AlH3) confirming practical application. Results demonstrate that Al nanoparticles prolong lifetime of photogenerated charge carriers via localized surface plasmon resonance induced hot electron injection, while AlH3 chemisorption triggers interfacial ...
Ting‐Ting Li, Li‐Cheng Liang, Rui‐Qi Chen, Chun‐Qi Zhang, Sheng‐Nan Zhang, Wen‐Wen Cheng, Xi‐Hao Chen, Ning Wang, Juan‐Ding Xiao, Qing‐Qing Yang, Fei Liang, Chao‐Feng Zhang   +11 more
wiley   +1 more source

Research on Fast Time-Frequency Reconstruction Algorithm for Wideband Compressive Spectrum Sensing. [PDF]

Sensors (Basel)
Zhu R, Li C, Wu Y, Wu R, Zhang Z, Wang Z, Lu Y.   +6 more
europepmc   +1 more source

Multimodal Layer‐Crossing Interrogation of Brain Circuits Enabled by Microfluidic Axialtrodes

Advanced Science, EarlyView.
The study introduces a flexible microfluidic axialtrode that integrates optical, electrical, and chemical modalities within a single polymer fiber. By redistributing electrodes and fluidic channels along the fiber axis via angled cleaving, it enables simultaneous optogenetic stimulation, electrophysiological recording, and drug delivery across brain ...
Kunyang Sui, Neela K. Codadu, Daman Rathore, Guanghui Li, Marcello Meneghetti, Anders L. Bøcker, Rune W. Berg, Rob C. Wykes, Christos Markos   +8 more
wiley   +1 more source

Recent Advances in Multitone Microwave Frequency Measurement. [PDF]

Sensors (Basel)
Zobair MA, Boroomandisorkhabi B, Esmaeelpour M.   +2 more
europepmc   +1 more source

Effects of Optical Sampling Pulse Power, RF Power, and Electronic Back-End Bandwidth on the Performance of Photonic Analog-to-Digital Converter. [PDF]

Micromachines (Basel), 2023
Qi J, Chen X, Fu M, Zhang H, Yi W, Xu T, Su D, Zhang H, Wei X, Shi B, Li X.   +10 more
europepmc   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Compressive Wideband Spectrum Sensing Aided Intelligence Transmitter Design. [PDF]

Sensors (Basel)
Qin L, Chen Y, Zhong L, Zhao H.
europepmc   +1 more source