Comparison of methods for the assessment of nonlinearity in short-term heart rate variability under different physiopathological states

L Faes, M Gómez-Extremera, R Pernice… - … Journal of Nonlinear …, 2019 - pubs.aip.org
Despite the widespread diffusion of nonlinear methods for heart rate variability (HRV)
analysis, the presence and the extent to which nonlinear dynamics contribute to short-term …

Research on control method of upper limb exoskeleton based on mixed perception model

WD Wang, JB Zhang, D Kong, S Su, XQ Yuan, C Zhao - Robotica, 2022 - cambridge.org
As one of the research hotspots in the field of rehabilitation robotics, the upper limb
exoskeleton robot has been widely used in the field of rehabilitation. However, the existing …

Fifty years of Shannon information theory in assessing the accuracy and agreement of diagnostic tests

A Casagrande, F Fabris, R Girometti - Medical & Biological Engineering & …, 2022 - Springer
Since 1948, Shannon theoretic methods for modeling information have found a wide range
of applications in several areas where information plays a key role, which goes well beyond …

A refined composite multivariate multiscale fluctuation dispersion entropy and its application to multivariate signal of rotating machinery

C **, G Yang, L Liu, H Jiang, X Chen - Entropy, 2021 - mdpi.com
In the fault monitoring of rotating machinery, the vibration signal of the bearing and gear in a
complex operating environment has poor stationarity and high noise. How to accurately and …

Monitoring the evolution of asynchrony between mean arterial pressure and mean cerebral blood flow via cross-entropy methods

A Porta, F Gelpi, V Bari, B Cairo, B De Maria… - Entropy, 2022 - mdpi.com
Cerebrovascular control is carried out by multiple nonlinear mechanisms imposing a certain
degree of coupling between mean arterial pressure (MAP) and mean cerebral blood flow …

Investigating autonomic nervous system dysfunction among patients with post-COVID condition and prolonged cardiovascular symptoms

FS da Silva, LP Bonifácio… - Frontiers in …, 2023 - frontiersin.org
Heart Rate Variability (HRV) and arterial pressure (AP) variability and their responses to
head-up tilt test (HUTT) were investigated in Post-COVID-19 syndrome (PCS) patients …

A fast sample entropy for pulse rate variability analysis

L Chou, S Gong, H Yang, J Liu, Y Chou - Medical & Biological …, 2023 - Springer
Sample entropy is an effective nonlinear index for analyzing pulse rate variability (PRV)
signal, but it has problems with a large amount of calculation and time consumption …

Non-linear heart rate dynamics during and after three controlled exercise intensities in healthy men

J Naranjo-Orellana, C Nieto-Jiménez… - Physiology …, 2021 - akjournals.com
We aimed to analyse the complexity and fractal nature of heartbeat during constant exercise,
at three different intensities, and recovery. Fourteen healthy men underwent 4 separate …

A modified clustering procedure for energy consumption monitoring in the steam turbine considering volume effect

H Gu, H Zhu, X Cui - Energy, 2023 - Elsevier
A new procedure for energy consumption characteristics of steam turbine is proposed in this
paper. The heat rate index evaluates heat energy needed for electricity generation, and …

Deep belief ensemble network based on MOEA/D for short-term load forecasting

C Fan, C Ding, L **ao, F Cheng, Z Ai - Nonlinear Dynamics, 2021 - Springer
While the demand for quality power supply is increasing, the traditional power grid cannot
meet with the users' demand. Smart grid has become a new solution to quality power supply …