Results 241 to 250 of about 618,188 (265)

Facile Manufacturing of PEEK‐Based Nanocomposites for High‐Efficiency Wide‐Temperature‐Range Electromagnetic Wave Absorption

open access: yesAdvanced Science, EarlyView.
Herein, thermally robust poly(ether ether ketone)‐based composites reinforced by a hierarchical Fe3O4/carbon nanotubes/reduced graphene oxide (Fe3O4/CNTs/rGO) network are reported, delivering wide‐temperature‐range broadband electromagnetic wave absorption (298–573 K; minimum reflection loss (RLmin) ≈ −66 dB).
Liang Zhao   +8 more
wiley   +1 more source

Multi‐Force‐Driven Self‐Recoverable SWIR Mechanoluminescence for Underwater Communication

open access: yesAdvanced Science, EarlyView.
This study represents the first demonstration of self‐recoverable mechanoluminescent (ML) within a single material across diverse mechanical modes, enabled by the synergistic coupling of piezoelectric and triboelectric effects. Through a combinatorial doping approach, the MgNb2O6 crystal exhibits breakthrough short‐wavelength infrared ML performance ...
Jie Sun   +13 more
wiley   +1 more source

Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic‐Accessible Metasurface

open access: yesAdvanced Science, EarlyView.
A fluidic access metasurface enables dynamic, broadband electromagnetic illusions. By physically reconstructing conductive patterns with liquid metal, the metasurface achieves real‐time, pixel‐level control over phase dispersion. This allows for the programmable generation of arbitrary strong scattering point arrays, effectively deceiving high ...
Shipeng Liu   +14 more
wiley   +1 more source

Tunable Plug‐and‐Play Meta‐Nanogenerator Materials for Multi‐Range Force Measurements

open access: yesAdvanced Science, EarlyView.
The multifunctional and tunable meta‐nanogenerator material system combines a mechanical metamaterial and a triboelectric nanogenerator enabling self‐powered, real‐time force sensing across application‐specific ranges. Geometrical tuning adjusts stiffness and the force sensing range, while modular integration streamlines assembly.
Roshira Premadasa   +6 more
wiley   +1 more source

Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

open access: yesAdvanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen   +8 more
wiley   +1 more source

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