Results 101 to 110 of about 15,545,791 (242)
A proof-of-concept wearable photoplethysmography sensor-node for near real-time pulse transit time measurements [PDF]
, 2017 Date of Conference: 19-21 Oct. 2017Conference name: 2017 IEEE Biomedical Circuits and Systems Conference (BioCAS)Use of pulse transit time for estimating blood pressure is a promising method that could potentially address the pressing need for an ...
Hakan Toreyin +7 more
core +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo +10 more
wiley +1 more source
Analysis of the thermal conditions of pulse impact avalanche transit-time diodes [PDF]
Журнал нано- та електронної фізики, 2009 The nonstationary problem of the thermal process for the pulse mode of impact avalanche transit-time diodes is solved. The one-dimensional thermal model of such diodes, which takes into account the heterogeneity of the thermal power distribution and the ...
M.S. Sorokin, A.V. Arkhipov
doaj
Determination of the peripheral pulse wave transit time [PDF]
, 2008 W artykule zaprezentowano metodę wyznaczania czasu propagacji fali tętna obwodowego (ang. pulse transit time, PTT), zdefiniowanego jako przedział czasu mierzony od początku fazy skurczu serca do momentu pojawienia się tzw.
Wilk, B.
core
Advanced Functional Materials, EarlyView.Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand +13 more
wiley +1 more source
Novel computation of pulse transit time from multi-channel PPG signals by wavelet transform
Current Directions in Biomedical Engineering, 2016 Being able to accurately monitor blood pressure in a reliable, truly non-invasive manner is a highly sought after goal within the biomedical community.
Pielmuş Alexandru-Gabriel +6 more
doaj +1 more source
Revisiting the Relationship between Pulse Transit Time and Arterial Stiffness
Pflügers Archiv - European Journal of PhysiologyAbstract Introduction: Unlike secondary prevention, primary prevention of the major cardiovascular events has not yet been successful. One of the reasons is that current methodology has not succeeded in selecting high risk patients who are suitable candidates for primary prevention.
Masayoshi Yoshida +3 more
openaire +2 more sources
Implantable Ionic Memristors Based on Natural Polymer Heterojunctions
Advanced Functional Materials, EarlyView.We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee +6 more
wiley +1 more source
Contactless Measurement of Pulse Transit Time Between Upper Extremities During Simulated Stenosis
Current Directions in Biomedical EngineeringThis paper proposes a novel approach for the noninvasive assessment of different degrees of stenosis by remote photoplethysmography (rPPG) using an RGB camera.
Tauber Samuel +3 more
doaj +1 more source
Biodegradable and Biocompatible Functional Polymers for Biomedical Applications
Advanced Functional Materials, EarlyView.Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han +5 more
wiley +1 more source