Results 1 to 10 of about 2,461,215 (293)

Comparison of Motion Artefact Reduction Methods and the Implementation of Adaptive Motion Artefact Reduction in Wearable Electrocardiogram Monitoring [PDF]

open access: yesSensors, 2020
A motion artefact is a kind of noise that exists widely in wearable electrocardiogram (ECG) monitoring. Reducing motion artefact is challenging in ECG signal preprocessing because the spectrum of motion artefact usually overlaps with the very important ...
Xiang An, George K. Stylios
doaj   +4 more sources

Adaptive Motion Artifact Reduction in Wearable ECG Measurements Using Impedance Pneumography Signal [PDF]

open access: yesSensors, 2022
Noise is a common problem in wearable electrocardiogram (ECG) monitoring systems because the presence of noise can corrupt the ECG waveform causing inaccurate signal interpretation.
Xiang An   +5 more
doaj   +2 more sources

Probability-Driven Adaptive Foot-Mounted Inertial Navigation with Local Straight-Heading and Stair-Height Constraints [PDF]

open access: yesSensors
Foot-mounted inertial pedestrian navigation is an attractive infrastructure-free solution for pedestrian positioning in environments where Global Navigation Satellite System (GNSS) signals are unavailable, degraded, or intentionally excluded.
Dongpeng Xie   +4 more
doaj   +2 more sources

Functional compensators in machine drives [PDF]

open access: yesОмский научный вестник, 2020
Real mechanical systems are characterized by real parameters, which include primary manufacturing and assembly errors, force and temperature deformations, and abnormal operating modes, the full knowledge of which is unknown when designing systems ...
P. D. Balakin   +3 more
doaj   +1 more source

Influence of glide path size and operating kinetics on time to reach working length and fracture resistance of Twisted File adaptive and Endostar E3 nickel-titanium file systems [PDF]

open access: yesRestorative Dentistry & Endodontics, 2020
ObjectivesThis study investigated the influence of glide path size and operating kinetics on the time to reach the working length and the fracture resistance of Twisted File (TF) and Endostar E3 files.Materials and MethodsA total of 120 mandibular single-
Tamilkumaran Ramyadharshini   +4 more
doaj   +1 more source

A Soft Actor-Critic Approach for a Blind Walking Hexapod Robot with Obstacle Avoidance

open access: yesActuators, 2023
This paper investigates a path planning approach for the walking and obstacle avoidance of a blind hexapod robot in various field conditions. Hexapod robots often perform field tasks in unstructured environments, and their external sensors are affected ...
Lei Wang   +4 more
doaj   +1 more source

Computer-assisted approaches for measuring, segmenting, and analyzing functional upper extremity movement: a narrative review of the current state, limitations, and future directions

open access: yesFrontiers in Rehabilitation Sciences, 2023
The analysis of functional upper extremity (UE) movement kinematics has implications across domains such as rehabilitation and evaluating job-related skills. Using movement kinematics to quantify movement quality and skill is a promising area of research
Kyle L. Jackson   +11 more
doaj   +1 more source

Adaptive Delay-Free Filtering Based on IMU for Improving Ship Heave Measurement

open access: yesSensors, 2023
Ship heave motion measurement is crucial for ensuring vessel stability, navigation precision, and maritime engineering safety. In order to achieve accurate heave motion measurement, a method based on an adaptive digital high–pass filter is proposed.
Daohua Lu, Yong Zhang, Jia Wang
doaj   +1 more source

Adaptive Robust Motion Control of Quadrotor Systems Using Artificial Neural Networks and Particle Swarm Optimization

open access: yesMathematics, 2021
Most of the mechanical dynamic systems are subjected to parametric uncertainty, unmodeled dynamics, and undesired external vibrating disturbances while are motion controlled.
Hugo Yañez-Badillo   +5 more
doaj   +1 more source

Robust Model Reference Adaptive Control for Tail-Sitter VTOL Aircraft

open access: yesActuators, 2021
This study presents a control design of roll motion for a vertical take-off and landing unmanned air vehicle (VTOL-UAV) design based on the Model Reference Adaptive Control (MRAC) scheme in the hovering flight phase.
Ahmed R. Ajel   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy