Results 91 to 100 of about 279,338 (297)
Advanced Materials Technologies, EarlyView.An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim +4 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.Lead‐free bismuth halide perovskite memristors exhibit stable low‐voltage resistive switching behavior. The conductance‐activated quasi‐linear memristor model quantitatively reproduces the experimental hysteresis, confirming ion migration‐driven filament dynamics.
So‐Yeon Kim +4 more
wiley +1 more source
Securing the Internet of Things Infrastructure - Standards and Techniques [PDF]
, 2014 The Internet of Things (IoT) infrastructure is a conglomerate of electronic devices interconnected through the Internet, with the purpose of providing prompt and effective service to end-users.
Baig, Zubair A
core +1 more source
Water Quality Parameter Monitoring System Using Low Power Wide Area Network Technology (LPWAN) and Internet of Things (IOT) [PDF]
, 2020 Sebastián Retes Calix +1 more
openalex +1 more source
Flux Analysis of the Supercapacitor Performance at Component Level
Advanced Materials Technologies, EarlyView.The central objective of this study is to introduce new approach and metrics for analyzing the supercapacitor performance at the component level. The lack of standardized evaluation methodologies for analyzing the nonlinear behavior of real system is critical and hinders progress of supercapacitor.
Hyacinthe Randriamahazaka +2 more
wiley +1 more source
A Novel Passive Tracking Scheme Exploiting Geometric and Intercept Theorems
Sensors, 2018 Passive tracking aims to track targets without assistant devices, that is, device-free targets. Passive tracking based on Radio Frequency (RF) Tomography in wireless sensor networks has recently been addressed as an emerging field.
Biao Zhou +3 more
doaj +1 more source
Ultra‐Durable Information‐Encoded Anti‐Counterfeiting Self‐Assembled Nanocrystal Labels
Advanced Optical Materials, EarlyView.Ultra‐durable cost‐effective information‐encoded anti‐counterfeiting labels are fabricated to secure semiconductor chips. A novel method is used to self‐assemble colloidal quantum wells (CQWs) into color bars. Information can be encoded spatially, spectrally, and opto‐spatially.
Taha Haddadifam +6 more
wiley +1 more source
Top‐Down Fabricated Wood‐Derived Pressure and Strain Sensors: A Review
Advanced Science, EarlyView.This review focuses on wood‐derived pressure/strain sensors fabricated via top‐down strategies. It analyzes wood's structural composition, examines processing techniques, discusses sensor types and sensing mechanisms, and reviews existing research. The article concludes with future directions for enhancing performance and scalability.
Yi Ren +8 more
wiley +1 more source
Advanced Science, EarlyView.This paper presents a programmable metasurface‐based Meta Key Distribution (MKD) system for secure, protocol‐independent key exchange in indoor wireless settings. By embedding entropy into the wireless channel, it enables lightweight, compatible cryptographic key generation.
Xinyu Li +7 more
wiley +1 more source
AeroYOLO: Efficient Multiscale and Attention-Augmented YOLOv8s for Robust Aerial Object Detection
IEEE AccessAerial object detection suffers from scale and spatial imbalance, significantly reducing detection accuracy in drone-based datasets. We propose progressively enhanced YOLOv8s-based models AeroYOLO-Fusion, AeroYOLO-Attn, and AeroYOLO-Lite addressing ...
Huiyao Zhang
doaj +1 more source