Results 51 to 60 of about 161,184 (203)
Movement artefact removal from NIRS signal using multi-channel IMU data
BioMedical Engineering OnLine, 2018 Background The non-invasive nature of near-infrared spectroscopy (NIRS) makes it a widely accepted method for blood oxygenation measurement in various parts of the human body.
Masudur R. Siddiquee +5 more
doaj +1 more source
High Temperature Endurable Fiber Optic Accelerometer
Shock and Vibration, 2014 This paper presents a low frequency fiber optic accelerometer for application in high temperature environments of civil engineering structures. The reflection-based extrinsic fiber optic accelerometer developed in this study consists of a transmissive ...
Yeon-Gwan Lee +2 more
doaj +1 more source
A Subnano-g Electrostatic Force-Rebalanced Flexure Accelerometer for Gravity Gradient Instruments
Sensors, 2017 A subnano-g electrostatic force-rebalanced flexure accelerometer is designed for the rotating accelerometer gravity gradient instrument. This accelerometer has a large proof mass, which is supported inversely by two pairs of parallel leaf springs and is ...
Shitao Yan +4 more
doaj +1 more source
Comparison of Self-Reported and Accelerometer-Assessed Physical Activity in Older Women. [PDF]
PLoS ONE, 2015 Self-reported physical activity measures continue to be validated against accelerometers; however, the absence of standardized, accelerometer moderate-to-vigorous physical activity (MVPA) definitions has made comparisons across studies difficult ...
Eric J Shiroma +5 more
doaj +1 more source
Applied Sciences, 2023 Knee alignment after total knee arthroplasty (TKA) is essential for implant survival. Several studies on accelerometer-based navigation systems have given controversial results, with or without improvement in knee alignment.
Léopold Joseph +3 more
doaj +1 more source
A Resonant Z-Axis Aluminum Nitride Thin-Film Piezoelectric MEMS Accelerometer
Micromachines, 2019 In this paper, we report a novel aluminum nitride (AlN) thin-film piezoelectric resonant accelerometer. Different from the ordinary MEMS (micro-electro-mechanical systems) resonant accelerometers, the entire structure of the accelerometer, including the ...
Jian Yang +8 more
doaj +1 more source
Gait & Posture, 2019 BACKGROUND Objective measures using accelerometer-based activity monitors have been extensively used in physical activity (PA) and sedentary behavior (SB) research. To measure PA and SB precisely, the field is shifting towards machine learning-based (ML)
V. Farrahi +4 more
semanticscholar +1 more source
Validity and reliability of an accelerometer-based player tracking device
PLoS ONE, 2018 This study aimed to determine the intra- and inter-device accuracy and reliability of wearable athletic tracking devices, under controlled laboratory conditions.
D. Nicolella +3 more
semanticscholar +1 more source
Implementation of a CMOS/MEMS Accelerometer with ASIC Processes
Micromachines, 2019 This paper presents the design, simulation and mechanical characterization of a newly proposed complementary metal-oxide semiconductor (CMOS)/micro-electromechanical system (MEMS) accelerometer. The monolithic CMOS/MEMS accelerometer was fabricated using
Yu-Sian Liu, Kuei-Ann Wen
doaj +1 more source
A Novel, Open Access Method to Assess Sleep Duration Using a Wrist-Worn Accelerometer
PLoS ONE, 2015 Wrist-worn accelerometers are increasingly being used for the assessment of physical activity in population studies, but little is known about their value for sleep assessment. We developed a novel method of assessing sleep duration using data from 4,094
V. V. van Hees +9 more
semanticscholar +1 more source