Results 31 to 40 of about 140,946 (282)

An Integrated Testing Solution for Piezoelectric Sensors and Energy Harvesting Devices

open access: yesMeasurement Science Review, 2022
With the fast growth of wireless communications between nodes and sensor units and the increase of devices installed in remote places, and the development of IIoT applications, new requirements for power energy supply are needed to assure device ...
Pereira José Dias, Alves Mário
doaj   +1 more source

Validity and practical utility of accelerometry for the measurement of in-hand physical activity in horses [PDF]

open access: yes, 2015
Background: Accelerometers are valid, practical and reliable tools for the measurement of habitual physical activity (PA). Quantification of PA in horses is desirable for use in research and clinical settings. The objective of this study was to evaluate
Carnwath, J.   +6 more
core   +2 more sources

Impact of Standing Desk Intervention on Sedentary Behavior of 4th Grade Students [PDF]

open access: yes, 2020
The object of this study was to compare the differences in sedentary behavior of fourth grade students at standing desks to those at traditional desks.
Duh, Maddee
core   +1 more source

Effect of Vinyl Flooring on the Modal Properties of a Steel Footbridge [PDF]

open access: yes, 2019
Damping ratios associated with non structural elements play an important role in mitigating the pedestrian-induced vibrations of slender footbridges.
Hernández Díaz, Alejandro Mateo   +3 more
core   +1 more source

Inertial Sensors—Applications and Challenges in a Nutshell

open access: yesSensors, 2020
This editorial provides a concise introduction to the methods and applications of inertial sensors. We briefly describe the main characteristics of inertial sensors and highlight the broad range of applications as well as the methodological challenges ...
Thomas Seel, Manon Kok, Ryan S. McGinnis
doaj   +1 more source

Hybridizing matter-wave and classical accelerometers

open access: yes, 2014
We demonstrate a hybrid accelerometer that benefits from the advantages of both conventional and atomic sensors in terms of bandwidth (DC to 430 Hz) and long term stability. First, the use of a real time correction of the atom interferometer phase by the
Hardin, Thomas   +6 more
core   +2 more sources

Inertial and magnetic sensing of human movement near ferromagnetic materials [PDF]

open access: yes, 2003
This paper describes a Kalman filter design to estimate orientation of human body segments by fusing gyroscope, accelerometer and magnetometer signals. Ferromagnetic materials near the sensor disturb the local magnetic field and therefore the orientation
Luinge, Henk   +2 more
core   +7 more sources

Evaluation of the Continuous Wavelet Transform for Detection of Single-Point Rub in Aeroderivative Gas Turbines with Accelerometers

open access: yesSensors, 2018
A common fault in turbomachinery is rotor–casing rub. Shaft vibration, measured with proximity probes, is the most powerful indicator of rotor–stator rub.
Alejandro Silva   +3 more
doaj   +1 more source

Validation of smartphone step count algorithm used in STARFISH smartphone application [PDF]

open access: yes, 2017
BACKGROUND: Smartphone sensors are underutilised in rehabilitation. OBJECTIVE: To validate the step count algorithm used in the STARFISH smartphone application. METHODS: Twenty-two healthy adults (8 male, 14 female) walked on a treadmill for 5 minutes at
Abel   +19 more
core   +2 more sources

Deep convolutional and LSTM recurrent neural networks for multimodal wearable activity recognition [PDF]

open access: yes, 2016
Human activity recognition (HAR) tasks have traditionally been solved using engineered features obtained by heuristic processes. Current research suggests that deep convolutional neural networks are suited to automate feature extraction from raw sensor ...
Alsheikh   +11 more
core   +2 more sources

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