Results 41 to 50 of about 11,400 (246)

The Assessment of Autonomic Nervous System Activity Based on Photoplethysmography in Healthy Young Men

Frontiers in Physiology, 2021
Noninvasive assessment of autonomic nervous system (ANS) activity is of great importance, but the accuracy of the method used, which is primarily based on electrocardiogram-derived heart rate variability (HRV), has long been suspected.
Binbin Liu, Zhe Zhang, Xiaohui Di, Xiaoni Wang, Lin Xie, Wenjun Xie, Jianbao Zhang   +6 more
doaj   +1 more source

Self‐Powered All‐in‐One Wearable Bioelectronics Driven by Pneumatic Energy Buffering of Daily Footsteps

Advanced Science, EarlyView.
A pneumatic energy‐buffering strategy transforms transient and intermittent footsteps into quasi‐continuous electrical energy for a self‐powered wearable biosensing platform. The footwear‐integrated air‐pumping harvester, combined with the rationally designed power‐management system, powers a wearable ankle PPG device with reduced motion artifacts ...
Ji‐Seok Kim, Tae Woog Kang, Hyunjoon Yoo, Jawon Ha, Yunuo Huang, Hee Han, Chi Won Ahn, Woon‐Hong Yeo, Il‐Kwon Oh   +8 more
wiley   +1 more source

Semi‐Transparent Organic Photodiodes with Near‐Infrared Detection Fabricated by Inkjet Printing

Advanced Electronic Materials, EarlyView.
This work shows the inkjet printing of semi‐transparent and opaque organic photodiodes that enable light detection in the near‐infrared regime. Their transparency and high detection speed make them ideal for applications in soft robotics, wearable devices, and light communication systems.
Luis Arturo Ruiz‐Preciado, Peter Krebsbach, Mervin Seiberlich, Gerardo Hernandez‐Sosa   +3 more
wiley   +1 more source

Perovskite Photodetectors at the Intelligence Frontier: From Tunable Materials to Adaptive Optoelectronic Systems

Carbon Energy, EarlyView.
This comprehensive review presents a progressive roadmap for perovskite vision detectors. Centered on perovskite‐based artificial perception, the graphic illustrates a systematic evolution: starting with fundamental material engineering and device architectures, advancing toward complex functional strategies such as flexible neuromorphic imaging ...
Chenglong Li, Wei Qu, Deepak Kumar, Naini Jain, Nur Wardina Syahirah binti Mohamad Fadil, Nur Najiha binti Ahmad Rasid, Emannuel Kymakis, Maria Vasilopoulou, Chunxiong Bao, Feng Gao, Peng Gao, Sanjeev Kumar Sharma, Mohammad Khaja Nazeeruddin, Abd. Rashid bin Mohd Yusoff, Haotong Wei   +14 more
wiley   +1 more source

Continuous cuffless blood pressure measurement using feed-forward neural network

Радіоелектронні і комп'ютерні системи, 2023
High blood pressure (BP) or hypertension is an extremely common and dangerous condition affecting more than 18–27 % of the world population. It causes many cardiovascular diseases that kill 7.6 million people around the world per year.
Oleh Viunytskyi, Volodymyr Lukin, Alexander Totsky, Vyacheslav Shulgin, Nadejda Kozhemiakina   +4 more
doaj   +1 more source

Noise‐Blocking Interfacial Lamination of Small‐Molecule Acceptors for Enhanced Signal Clarity in Organic Photodetectors

Carbon Energy, EarlyView.
The structural design strategy employing the Y6‐BO interfacial lamination suppresses dark current by limiting solvent‐induced interfacial damage through the formation of uniformly arranged interfaces while optimizing charge transport to achieve superior detectivity.
Jihyun Lim, Hyunguk Park, Woongsik Jang, Jae Hyun Jeong, Dong Hwan Wang   +4 more
wiley   +1 more source

Modular Open-Core System for Collection and Near Real-Time Processing of High-Resolution Data from Wearable Sensors

Applied System Innovation, 2023
Wearable devices, such as smartwatches integrating heart rate and activity sensors, have the potential to transform health monitoring by enabling continuous, near real-time data collection and analytics.
Dorota S. Temple, Meghan Hegarty-Craver, Pooja Gaur, Matthew D. Boyce, Jonathan R. Holt, Edward A. Preble, Randall P. Eckhoff, Hope Davis-Wilson, Howard J. Walls, David E. Dausch, Matthew A. Blackston   +10 more
doaj   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source

Classifying sepsis from photoplethysmography

Health Information Science and Systems, 2022
Abstract Purpose Sepsis is a life-threatening organ dysfunction. It is caused by a dysregulated immune response to an infection and is one of the leading causes of death in the intensive care unit (ICU). Early detection and treatment of sepsis can increase the survival rate of patients.
Sara Lombardi, Petri Partanen, Piergiorgio Francia, Italo Calamai, Rossella Deodati, Marco Luchini, Rosario Spina, Leonardo Bocchi   +7 more
openaire   +3 more sources

A Novel Photoplethysmography Sensor for Vital Signs Monitoring from the Human Trachea

Biosensors, 2019
Current pulse oximeter sensors can be challenged in working accurately and continuously in situations of reduced periphery perfusion, especially among anaesthetised patients.
James M. May, Justin P. Phillips, Tracey Fitchat, Shankar Ramaswamy, Saowarat Snidvongs, Panayiotis A. Kyriacou   +5 more
doaj   +1 more source