Results 241 to 250 of about 30,659 (303)

Bioinspired Regenerative Lignification Enables Ultra‐Hard and Sustainable Bamboo Structural Materials

Exploration, EarlyView.
Developing strong and sustainable materials is essential for reducing reliance on metals and lowering carbon emissions. Inspired by how plants naturally harden their cell walls, we created a rapid process that transforms bamboo into an ultra‐hard structural material by rebuilding lignin‐like networks within its structure.
Jian Gan, Shaodi Zhang, Yuxiang Huang, Wenji Yu   +3 more
wiley   +1 more source

Integrated photonic ultrawideband real-time spectrum sensing for 6G wireless networks. [PDF]

Nat Commun
Tao Y, Feng H, Fang Y, Xie X, Zeng Y, Wu Y, Ge T, Zhang Y, Chen Z, Tao Z, Xu J, Shu H, Wang X, Yu X, Yu X, Wang C.   +15 more
europepmc   +1 more source

Char Layer Thickness Evolution During Structural Timber Fire Experiment and Final Density Profile

Fire and Materials, EarlyView.
ABSTRACT This paper evaluates several non‐destructive experimental methods for determining the char layer thickness and its density profile in structural timber samples exposed to standard ISO 834 fire curve experiments. Microwave echo pulse, ultrasonic echo pulse, X‐ray computed tomography, and resistance drilling were evaluated.
Fernando Pérez Pérez, Kiarash Tajbakhsh, Joachim Schmid, Robert Zboray, Andrea Frangi   +4 more
wiley   +1 more source

Radar-Based Fall Detection Using Micro-Doppler Signatures: A Comparative Analysis of YOLO Architectures. [PDF]

Sensors (Basel)
Seflek I, Barstuğan M.
europepmc   +1 more source

Traffic Flow Data Collection Methods During Wildfire Evacuation

Fire and Materials, EarlyView.
ABSTRACT With climate change and urbanisation increasing wildfire risk in the wildland–urban interface (WUI), enhancing community evacuation preparedness is crucial. This study evaluates different data collection methods for measuring traffic flows during a community wildfire evacuation drill in Roxborough Park, Colorado, in June 2024.
Ann‐Kristin Dugstad, Maxine Berthiaume, Enrico Ronchi, Noureddine Bénichou, Paul Geoerg, Steve Gwynne, Hui Xie, Kamryn Kubose‐Peutz, Amanda Kimball, Max Kinateder   +9 more
wiley   +1 more source

Simulation-to-Real Trip-Fall Detection with Continuous-Wave Doppler Radar via Physics-Informed Kinematic Modeling and Domain Randomization. [PDF]

Sensors (Basel)
Okusa K.
europepmc   +1 more source

High‐performance heat‐resistant tactile sensor for intelligent sensing and safe operation

FlexMat, EarlyView.
Abstract Tactile sensing in high‐temperature environments remains a critical challenge for robotic systems operating in industrial manufacturing, food processing, and other high‐temperature assembly operations. Herein, we report a heat‐resistant flexible tactile sensor with comprehensive high performance, featuring a hierarchical architecture ...
Yugang Chen, Shasha Wang, Haopeng Wang, Xun Fu, Qifei Lv, Shuting Xie, Yan Li, Jiangtian Tan, Linghai Xie   +8 more
wiley   +1 more source

Non-Contact Measurement of Human Vital Signs in Dynamic Conditions Using Microwave Techniques: A Review. [PDF]

Sensors (Basel)
Ostrysz M, Szczepaniak Z, Sondej T.
europepmc   +1 more source

Monitoring and assessment for obstructive sleep apnea

FlexMat, EarlyView.
This review systematically classifies Obstructive Sleep Apnea (OSA) monitoring indicators into three categories: physical, biochemical, and electrophysiological indicators, and lists several methods for each category. Abstract Obstructive sleep apnea (OSA) is a common chronic sleep‐disordered breathing disease characterized by recurrent upper airway ...
Yaowen Xu, Feifei Lin, Shujiao Chen, Zhen You, Shujing Zhu, Weiwei Zhao, Qiang Zhao   +6 more
wiley   +1 more source

Harnessing mmWave signals and machine learning for noninvasive taxonomic classification of insects. [PDF]

PNAS Nexus
Antony L, White C, Marchetti N, Donohue I, Stout JC, Narbudowicz A.   +5 more
europepmc   +1 more source