Results 61 to 70 of about 4,481,103 (333)
Isolated Fourth Heart Sound [PDF]
Circulation: Heart Failure, 2017 A 77-year-old man with a history of coronary artery bypass grafting presented with general fatigue and dyspnea on effort. He was classified as having New York Heart Association functional classification III heart failure symptoms. His brain natriuretic peptide level was elevated at 569 pg/mL.
Shun, Yokota +8 more
openaire +2 more sources
IEEE Access, 2019 The rapid development of wearable biosensors based on the Internet of Things provides a new solution for heart disease analysis and prediction of sudden death from heart failure.
Xiefeng Cheng +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi +4 more
wiley +1 more source
A Multimodal Model of ECG and Heart Sound Signal by Considering Normal and Abnormal Heart
JOIV: International Journal on Informatics Visualization, 2022 Analysis of the opening and closing of heart valves and the movement of blood flow in the heart are important in the domain of early detection of heart conditions.
Prihatin Oktivasari +2 more
doaj +1 more source
Detection of the valvular split within the second heart sound using the reassigned smoothed pseudo Wigner–Ville distribution [PDF]
, 2013 BACKGROUND: In this paper, we developed a novel algorithm to detect the valvular split between the aortic and pulmonary components in the second heart sound which is a valuable medical information.
Abdelghani Djebbari +1 more
core +1 more source
Computerized heart sounds analysis [PDF]
Computers in Biology and Medicine, 2008 This paper is concerned with a synthesis study of the fast Fourier transform (FFT), the short-time Fourier transform (STFT), the Wigner distribution (WD) and the wavelet transform (WT) in analysing the phonocardiogram signal (PCG). It is shown that these transforms provide enough features of the PCG signals that will help clinics to obtain qualitative ...
S M, Debbal, F, Bereksi-Reguig
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Detection and quantification of venous air embolism by wavelet analysis of Doppler heart sound [PDF]
, 1996 The wavelet analysis of the Doppler heart sound detected under controlled venous air embolism at sub-clinically and clinically significant volumes was studied in anaesthetized dogs.
Chan, BCB +5 more
core +1 more source
End-to-end heart sound segmentation using deep convolutional recurrent network
Complex & Intelligent Systems, 2021 Heart sound segmentation (HSS) aims to detect the four stages (first sound, systole, second heart sound and diastole) from a heart cycle in a phonocardiogram (PCG), which is an essential step in automatic auscultation analysis.
Yao Chen +4 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Mg‐based thermoelectrics are among the most promising candidates for power generation applications but their performance is compromised by Mg loss at device operation temperatures due to the higher chemical potential of Mg (μMg${\mu}_{\mathrm{Mg}}$) inside the material compared to the environment.
Aryan Sankhla +2 more
wiley +1 more source