Results 201 to 210 of about 82,897 (310)

An Optically Transparent Water‐Based Metamaterial Absorber for Ultra‐Broadband EMI Shielding in Coal Mines

Advanced Science, EarlyView.
This study introduces a novel metamaterial absorber integrating water as a lossy medium with patterned indium tin oxide (ITO) films to achieve simultaneous optical transparency and ultra‐wideband electromagnetic absorption over 0.52‐40 GHz. It effectively overcomes the limitations of conventional opaque and bulky shielding materials, offering a ...
Xiaojun Huang, Lina Gao, Yidan Xu, Yifei Wang, Wei Hou, Yu Luo   +5 more
wiley   +1 more source

Synthesis and Integration of an Fe(II) Coordination Compound into Green Resin Matrices for Multifunctional Dielectric, Piezoelectric, Energy Harvesting, and Storage Applications. [PDF]

Polymers (Basel)
Patsidis AC, Papageorgiou IT, Lada ZG.
europepmc   +1 more source

Decoding Trap States in Working 2D Perovskite Multi‐Functional Devices

Advanced Science, EarlyView.
Illustration of the photoluminescence spectrum and energy‐level landscape governing trap‐mediated carrier dynamics in 2D F‐PEAI photodetectors. A novel approach capturing dynamic trap occupation and retrapping in devices under operating conditions, directly links defect energetics to carrier transport and enhanced photoresponse in multifunctional ...
Ioannis Leontis, Karl Jonas Riisnaes, Hoi Tung Lam, Rosanna Mastria, Luisa De Marco, Annalisa Coriolano, Steven Hepplestone, Monica Felicia Craciun, Saverio Russo   +8 more
wiley   +1 more source

A Characterizing Method of Carbon Nanotubes in Powder Form with Different Packing Densities. [PDF]

Micromachines (Basel)
Li R, Yang C, Zhang Y, Wang J.
europepmc   +1 more source

Ambient Stable Triboelectric Nanogenerator Based on Conductive Filler Modified Silicone Rubber with Gas Barrier Encapsulation for Footstep Energy Conversion

Advanced Science, EarlyView.
A humidity‐tolerant triboelectric nanogenerator is developed using conductive carbon black‐modified silicone rubber and a flame‐retardant gas barrier layer. The device efficiently harvests footstep energy while maintaining stable output under 30–90% RH and over 1 million cycles.
Yi Wei, Yushu Tian, Xiaokang Chen, Junfeng Chu, Junjie Wang, Xiangyu Chen, Wenjie Wu, Liqun Zhang   +7 more
wiley   +1 more source

Electrical Conductivity and Permittivity of Porous Media: Origin, Measurements, and Implications. [PDF]

ACS Meas Sci Au
Hakiki F, Lin CP.
europepmc   +1 more source

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

Advanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu, Minmin Mao, Beltzane Garcia Cirera, Hao Ye, Xiangzhong Chen, Josep Puigmartí‐Luis, Ni Qin, Salvador Pané   +7 more
wiley   +1 more source

Microwave imaging for human brain stroke detection using frequency domain inverse modelling & phantom experiments. [PDF]

Sci Rep
Rana SP, Davis JG, Khalil K, O'Toole M, Watson S, Liang S, Parry-Jones A, Daniels DJ, Peyton AJ.   +8 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

The Impact of Dual-Wavefront Propagation of Electromagnetic Waves in Bio-Tissues on Imaging and In-Body Communications. [PDF]

Biosensors (Basel)
Guo L, Sultan K, Xue F, Abbosh A.
europepmc   +1 more source