Results 71 to 80 of about 8,379,514 (244)

A comprehensive review of heart rate measurement using remote photoplethysmography and deep learning

BioMedical Engineering OnLine
With the widespread availability of consumer-grade cameras, interest in heart rate (HR) measurement using remote photoplethysmography (rPPG) has grown significantly.
Uday Debnath, Sungho Kim
doaj   +1 more source

A model of heart rate kinetics in response to exercise [PDF]

, 2008
We present a mathematical model, in the form of two coupled ordinary differential equations, for the heart rate kinetics in response to exercise. Our heart rate model is an adaptation of the model of oxygen uptake kinetics of Stirling: a physiological ...
Stirling, James, Zakynthinaki, María S., Refoyo Román, Ignacio, Sampedro Molinuevo, Javier   +3 more
core  

Adaptive Conductive Systems: Enabling Deformable Electronics Through Engineered Materials, Circuits, and Intelligent Systems

Advanced Science, EarlyView.
This review presents the research advances of adaptive conductive systems from the perspective of materials, circuits, systems, and applications. Deformable conductors consist of substrates/matrices and conductive materials, structural design of circuit interconnections, fabrication of circuit interconnections, as well as intelligent systems ...
Yufei Lu, Siyu Liang, Jingyi Niu, Jie Chen, Shuo Zhang, Hongjian Zhang, Dongsheng Jia, Wei Huang   +7 more
wiley   +1 more source

Magnetically Guided Macrophage Immunobots Coordinate Iron‐Metabolic Cascades and Immunogenic Ferroptosis for Tumor Immunotherapy

Advanced Science, EarlyView.
Magnetically guided macrophage immunobots integrate active tumor targeting with immunometabolic therapy. After systemic administration, magnetic actuation enhances immunobot retention and tumor penetration, while LPS‐functionalized FePt microrollers sustain M1‐like polarization through inflammatory and iron‐amplified oxidative signaling and trigger ...
Xirui Zeng, Yingfei Zhang, Chong Wu, Qijia Duan, Mengqi Fan, Kuan Wang, Shirong Cai, Immihan Ceren Yasa   +7 more
wiley   +1 more source

Millimeter-Wave Radar Non-Contact Heart Rate Monitoring: A Cross-Platform Study Under Steady and Unsteady Conditions

IEEE Access
As the demand for isolation care increases, clinical practice requires non-contact, low-interference, long-term vital sign monitoring. Remote photoplethysmography (rPPG), infrared thermography (IRT), and pyroelectric infrared sensors (PIR) have been used
Chi-Hung Wang, Xiang-Shun Yang
doaj   +1 more source

Remote Heart Rate Estimation using Swin Transformer V2 and Wrapping Temporal Shift Modules [PDF]

Remote heart rate (rHR) estimation, which aims to measure heart activities without any physical contact with the subject, is performed using remote photoplethys- mography (rPPG) and has great potential in many applications.
Kim, Junkwang, Kim, Hyunduk, Lee, Sang-Heon, Sohn, Myoung-Kyu   +3 more
core   +1 more source

A Recyclable and Biodegradable High‐Performance Piezoelectric Nanogenerator for Self‐Powered Biosensing and Assistive Human‐Machine Interaction

Advanced Science, EarlyView.
By exploiting multiscale hydrogen‐bonding interactions between HFPD and TOCNF, the composite simultaneously achieves a high piezoelectric coefficient (14.0 pC·N−1), outstanding flexibility (100 000 bending cycles), water‐assisted recyclability, excellent biodegradability, and sensitive wearable/implantable sensing for motion, speech, and Morse code ...
Tingshuai Luo, Tian Xiao, Luyu Zhang, Bailang Zhang, Shengchang Lu, He Xiao, Jianguo Li, Kai Liu, Chaoji Chen, Hui Wu   +9 more
wiley   +1 more source

Remote heart rate extraction using Microsoft Kinect™ v2.0 [PDF]

, 2018
Remote and contactless heart rate detection is still an open research issue of great clinical importance. Available approaches lack the necessary accuracy and reliability for acceptance by medical experts.
Ramzan, Naeem, Malasinghe, Lakmini, Ramzan, Naeem; id_orcid, Keshav Dahal, Katsigiannis, Stamos, Stamos Katsigiannis, Lakmini Malasinghe, Dahal, Keshav, Dahal, Keshav; id_orcid, Naeem Ramzan   +9 more
core   +1 more source

Smart Bioinks for 4D Bioprinting: Requirements, Design, and Applications

Advanced Science, EarlyView.
Smart bioinks empower 4D‐bioprinted constructs to dynamically adapt and remodel in response to stimuli, effectively biomimicking native tissues. Artificial Intelligence (AI) and Machine Learning (ML) play a guiding role in their rational design by optimizing relevant properties.
Shangsi Chen, Jiahui Lai, Qiongjiao Zeng, Liangbin Zhou, Boguang Yang, Bin Zhang, Min Wang, Jiajing Zhou, Kieran Lau, Khoon S. Lim, Zhong Alan Li, Rocky S. Tuan   +11 more
wiley   +1 more source

Video Analytic Based Health Monitoring for Driver in Moving Vehicle by Extracting Effective Heart Rate Inducing Features

Journal of Advanced Transportation, 2018
We propose a novel remote heart rate (HR) estimation method using facial images based on video analytics. Most of previous methods have been demonstrated in well-controlled indoor environments.
Kanghyu Lee, David K. Han, Hanseok Ko
doaj   +1 more source