Results 31 to 40 of about 161,184 (203)

Estimating sleep parameters using an accelerometer without sleep diary

open access: yesScientific Reports, 2018
Wrist worn raw-data accelerometers are used increasingly in large-scale population research. We examined whether sleep parameters can be estimated from these data in the absence of sleep diaries.
V. V. Hees   +15 more
semanticscholar   +1 more source

Genetic studies of accelerometer-based sleep measures yield new insights into human sleep behaviour

open access: yesNature Communications, 2019
Sleep is an essential human function but its regulation is poorly understood. Using accelerometer data from 85,670 UK Biobank participants, we perform a genome-wide association study of 8 derived sleep traits representing sleep quality, quantity and ...
S. Jones   +31 more
semanticscholar   +1 more source

Investigation and validation of consumer device accelerometers for the assessment of whole-body vibration

open access: yesCogent Engineering, 2017
There exist a discrepancy between the usage of the expensive standard accelerometer and the cheap and accessible consumer device accelerometer for the measurement of whole-body vibration (WBV).
B.O. Akinnuli   +3 more
doaj   +1 more source

Design of a multi-bit quantization high-precision microaccelerometer system

open access: yesDianzi Jishu Yingyong, 2018
In order to achieve a stable and high-precision micromechanical accelerometer system based on the system noise-shaping ability, a high precision accelerometer system with multi-bit quantization is proposed.
Wang Baosheng, Zhao Gangbin
doaj   +1 more source

Development of a Novel Intraoperative Neuromonitoring System Using an Accelerometer Sensor in Thyroid Surgery: A Porcine Model Study [PDF]

open access: yesClinical and Experimental Otorhinolaryngology, 2019
Objectives. The sensitivity and positive predictive value of widely used intraoperative neuromonitoring (IONM) using electromyography (EMG) of the vocalis muscle in thyroid surgery are controversial.
Eui-Suk Sung   +8 more
doaj   +1 more source

Sensitivity-Tunable Oscillator-Accelerometer Based on Optical Fiber Bragg Grating

open access: yesPhotonics, 2021
We demonstrate a fiber Bragg grating (FBG)-based oscillator-accelerometer in which the acceleration sensitivity can be tuned by controlling the location of the mass oscillator.
Xiangpeng Xiao   +5 more
doaj   +1 more source

Design and Implementation of a Micromechanical Silicon Resonant Accelerometer

open access: yesSensors, 2013
The micromechanical silicon resonant accelerometer has attracted considerable attention in the research and development of high-precision MEMS accelerometers because of its output of quasi-digital signals, high sensitivity, high resolution, wide dynamic ...
Libin Huang   +4 more
doaj   +1 more source

Accelerometer systems as tools for health and welfare assessment in cattle and pigs - a review.

open access: yesBehavioural Processes, 2020
Welfare assessment has traditionally been performed by direct observation by humans, providing information at only selected points in time. Recently, this assessment method has been questioned, as 'Precision Livestock Farming' technologies may be able to
J. Chapa   +4 more
semanticscholar   +1 more source

Denoising MEMS accelerometer sensors based on L2‐norm total variation algorithm

open access: yesElectronics Letters, 2017
A method for denoising accelerometer data based on the L2‐norm total variation (LTV) algorithm is presented. In order to collect accelerometer data, a wireless accelerometer sensor was developed that is directly connected to a central node. By benefiting
R. Abbasi‐Kesbi, A. Nikfarjam
doaj   +1 more source

Validation of Accelerometer Wear and Nonwear Time Classification Algorithm

open access: yesMedicine & Science in Sports & Exercise, 2011
Introduction The use of movement monitors (accelerometers) for measuring physical activity (PA) in intervention and population-based studies is becoming a standard methodology for the objective measurement of sedentary and active behaviors and for ...
Leena Choi   +3 more
semanticscholar   +1 more source

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