Results 41 to 50 of about 1,812,599 (295)

Heightened clinical utility of smartphone versus body-worn inertial system for shoulder function B-B score. [PDF]

open access: yesPLoS ONE, 2017
BACKGROUND:The B-B Score is a straightforward kinematic shoulder function score including only two movements (hand to the Back + lift hand as to change a Bulb) that demonstrated sound measurement properties for patients for various shoulder pathologies ...
Claude Pichonnaz   +8 more
doaj   +1 more source

Can IMU Provide an Accurate Vertical Jump Height Estimate?

open access: yesApplied Sciences, 2021
The aim of the present study was to determine if an inertial measurement unit placed on the metatarsal part of the foot can provide valid and reliable data for an accurate estimate of vertical jump height.
Stefan Marković   +5 more
doaj   +1 more source

System-wide inertial response from fixed speed and variable speed wind turbines [PDF]

open access: yes, 2011
IEEE PES 2011 General Meeting, Detroit, Michigan, USA, July 24-28, 2011As wind penetration levels on power systems increase worldwide, the dynamic characteristics of these systems are changing due to the displacement of synchronous generation. One issue,
Lisa Ruttledge   +3 more
core   +1 more source

A High Q, Quasi-Monolithic Optomechanical Inertial Sensor

open access: yes, 2022
4 S.In order to achieve the excellent seismic isolation necessary for the operation of gravitational wave detectors, very sensitive inertial sensors are required to measure and counteract the motion of the ground.
Gerberding, O.   +5 more
core   +1 more source

A Comparative Study on the Suitability of Smartphones and IMU for Mobile, Unsupervised Energy Expenditure Calculi

open access: yesSensors, 2015
The metabolic equivalent of task (MET) is currently the most used indicator for measuring the energy expenditure (EE) of a physical activity (PA) and has become an important measure for determining and supervising a person’s state of health.
Angel Ruiz-Zafra   +4 more
doaj   +1 more source

Inertial-Magnetic Sensors for Assessing Spatial Cognition in Infants [PDF]

open access: yes, 2011
This paper describes a novel approach to the assessment of spatial cognition in children. In particular we present a wireless instrumented toy embedding magneto-inertial sensors for orientation tracking, specifically developed to assess the ability to ...
Campolo, Domenico   +11 more
core   +1 more source

Thermal-Assisted Field Emission Characteristics of Carbon Nanotubes and Application in Pulsed X-Ray Imaging

open access: yesNanomaterials
Carbon nanotube (CNT) cathode materials exhibit excellent electron emission performance and have become a key research focus in the field of vacuum electronics.
Zhiqiang Xia   +5 more
doaj   +1 more source

High-Efficiency Wavelet Compressive Fusion for Improving MEMS Array Performance

open access: yesSensors, 2020
With the rapid development of microelectromechanical systems (MEMS) technology, low-cost MEMS inertial devices have been widely used for inertial navigation.
Siyuan Liang   +3 more
doaj   +1 more source

Ekman-Inertial Instability

open access: yes, 2020
We report on an instability, arising in sub-surface, laterally-sheared geostrophic flows. When the lateral shear of a horizontal flow in geostrophic balance is of opposite sign to the Coriolis parameter, and exceeds it in magnitude, embedded ...
Nicolas Grisouard, Varvara E. Zemskova
core   +1 more source

Low-cost autonomous 3-D monitoring systems for hydraulic engineering environments and applications with limited accuracy requirements [PDF]

open access: yes, 2010
The details of developing autonomous 3-D motion monitoring systems based on commercial off-the-shelf (COTS) motion sensors for hydraulic environments are discussed. Possible areas of application, are river bed sediment transport monitoring and monitoring
Dwivedi, Ambuj   +5 more
core   +1 more source

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