Results 71 to 80 of about 1,600 (182)

A Systematic Review and Taxonomy of Fall Detection in Geriatric Care: Current State, Challenges, and Applications

WIREs Data Mining and Knowledge Discovery, Volume 16, Issue 3, September 2026.
Overview of fall‐detection approaches and technologies in geriatric care. ABSTRACT This systematic review provides a critical examination of fall detection (FD) technologies in geriatric care, analyzing both technological innovations and implementation challenges across diverse healthcare environments.
Hamid Ali, Ji Zhang, Xiaohui Tao, Raj Gururajan, Xujuan Zhou, Yuquan Gan, Josh Jia‐Ching Ying   +6 more
wiley   +1 more source

Motion Classification Based on Harmonic Micro-Doppler Signatures Using a Convolutional Neural Network

IEEE Journal of Microwaves
We present the design of narrowband radio-frequency harmonic tags and demonstrate their use in the classification of common motions of held objects using harmonic micro-Doppler signatures. Harmonic tags capture incident signals and retransmit at harmonic
Cory Hilton, Sheng Huang, Steve Bush, Faiz Sherman, Matt Barker, Aditya Deshpande, Steve Willeke, Jeffrey A. Nanzer   +7 more
doaj   +1 more source

Classification of Drones Based on Micro-Doppler Radar Signatures Using Dual Radar Sensors

Leida xuebao, 2018
Classification of drones is important due to their increasing popularity and potential threats. The micro-Doppler signatures that depend on the rotation of rotor blades facilitate the classification of drones.
Zhang Pengfei, Li Gang, Huo Chaoying, Yin Hongcheng   +3 more
doaj   +1 more source

River Sand and Gravel Mining: Global Drivers, Impacts, and Pathways for Sustainable Management

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract River sand and gravel are mined worldwide at volumes that now rival their natural replenishment, yet quantitative knowledge of this mining activity and its consequences lags far behind many other global environmental pressures. We synthesize 411 peer‐reviewed studies published since 1974 within a new Driver‐to‐Management Pathway for ...
Edward Park, Christopher R. Hackney, Dung Duc Tran, Mette Bendixen, Jim Best, Kai Wan Yuen, Hannah Runeckles, Md Sadiul Alam Chyon, Karl Kästner, Sonu Kumar, Halinishi Yusuf, Vanessa Lamb, Lars L. Iversen, Aelis Spiller, Rajiv Sinha, Eduardo Francisco da Silva, Enner Alcantara, Chengcheng Wu, Chengpeng Lu, Chu Jian, Jingyu Wang, Nguyen Duc Thien, Lian Feng, Priyank Pravin Patel, Jiachun Huang, Adam D. Switzer   +25 more
wiley   +1 more source

Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning

Advanced Materials Technologies, Volume 11, Issue 15, 7 August 2026.
This study explores how machine learning models, trained on small experimental datasets obtained via Phase Doppler Anemometry (PDA), can accurately predict droplet size (D32) in ultrasonic spray coating (USSC). By capturing the influence of ink complexity (solvent, polymer, nanoparticles), power, and flow rate, the model enables precise droplet control
Pieter Verding, Danny E. P. Vanpoucke, Yunus T. Aksoy, Tobias Corthouts, Maria R. Vetrano, Wim Deferme   +5 more
wiley   +1 more source

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, Volume 13, Issue 44, 7 August 2026.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

Unveiling the Microvasculature: The Index of Microcirculatory Resistance and Its Expanding Role in Cardiovascular Care

Catheterization and Cardiovascular Interventions, Volume 108, Issue 2, Page 287-300, August 1, 2026.
ABSTRACT Index of microcirculatory resistance (IMR) is a cutting‐edge, wire‐based tool that advances the capability assessment of coronary microvascular function. By utilizing distal coronary pressure and mean transit time under maximal hyperemia, IMR delivers consistent, reproducible insights into the microvasculature's dynamic health.
Joanna Sohn, Matthew A. Soderstrom, Ariana Ramirez, John‐Henry Dean, Raj Shah, Debanshu Roy, Kenneth Stone, Ariel Vinas, Bryan Ramsey, Charles Lin, Robert Chilton   +10 more
wiley   +1 more source

A Millimeter-Wave Scattering Channel Model for Indoor Human Activity Sensing

IEEE Open Journal of Antennas and Propagation
In sixth-generation (6G) application scenarios like industry 5.0, augmented reality (AR), autonomous transportation, and eHealth, there is a growing demand for Human Activity Recognition (HAR).
Mingqing Liu, Zhuangzhuang Cui, Yang Miao, Minseok Kim, Sofie Pollin   +4 more
doaj   +1 more source

Impact of Leaflet Thickness on Polymeric Valve Scaffold Function and Remodeling: Assessment in a 1‐ and 3‐Month Ovine Stented Pulmonary Valve Replacement Model

Journal of Biomedical Materials Research Part A, Volume 114, Issue 8, August 2026.
ABSTRACT Approaches to the structural design of tissue engineered heart valves (TEHVs) have varied broadly, ranging from material choice to microstructural and macro‐scale functional characteristics. Not only will each variable on this extensive list impact functional and restorative potential after implantation, but most of these variables also have ...
Drake D. Pedersen, Garrett Coyan, Viktor Balashov, Arianna Adamo, Patrizia Caruso, Flaviana Falci, Vesselin Shanov, William E. Katz, David Kokot, Giuseppe D'Ancona, William R. Wagner, Antonio D'Amore   +11 more
wiley   +1 more source

Physiological cardiotocography interpretation and neonatal morbidity: A historical pre–post cohort study in a tertiary perinatal center

Acta Obstetricia et Gynecologica Scandinavica, Volume 105, Issue 8, Page 1578-1586, August 2026.
In this historical pre–post cohort study, the implementation of physiological cardiotocography (PCI) interpretation was associated with reduced neonatal morbidity, neonatal acidosis, and neonatal unit admission. Adjusted cesarean section rates did not increase, supporting PCI as a promising approach to intrapartum fetal surveillance.
Sophia Andres, Henning Schäffler, Kay Stankov, Annika Schmid, Mandana Khodawandi, Moritz Dimpfl, Wolfgang Janni, Beate Hüner, Frank Reister   +8 more
wiley   +1 more source