Results 161 to 170 of about 45,007 (189)
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Digital particle image accelerometry
Experiments in Fluids, 2001A high-resolution video-based technique for obtaining two-dimensional fluid acceleration field data has been developed. The algorithm uses a combination of cross-correlations and autocorrelations on doubly exposed images of particle-seeded flows. Autocorrelations of individual video frames in an image pair yield two instantaneous velocity fields from ...
P. Dong +3 more
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Detection of Concussion Using Cranial Accelerometry
Clinical Journal of Sport Medicine, 2015To determine whether skull motion produced by pulsatile cerebral blood flow, as measured by cranial accelerometry, is altered during concussion.In phase 1, to identify a specific pattern indicative of concussion, cranial accelerometry of subjects who sustained a concussion underwent analysis of waveforms, which was compared with accelerometry from ...
Paul S, Auerbach +5 more
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Accelerometry-Based Berg Balance Scale Score Estimation
IEEE Journal of Biomedical and Health Informatics, 2014The objective of the study was to investigate the validity of 3-D-accelerometry-based Berg balance scale (BBS) score estimation. In particular, acceleration patterns of BBS tasks and gait were the targets of analysis. Accelerations of the lower back were measured during execution of the BBS test and corridor walking for 54 subjects, consisting of ...
Mäntyjärvi, Jani +5 more
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Towards low-temperature electrostatic accelerometry
Review of Scientific Instruments, 2002Ultrasensitive accelerometers with electrostatic suspension use a technology allowing operation at ambient temperature. However, their resolution is theoretically limited to around 10−12 m s−2/Hz1/2 by thermal noise. To overcome this limit, and in the perspective of future space missions, an electrostatic sensor compatible with operation at cryogenic ...
Laurent Lafargue +2 more
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SAGE: An Italian Project of Satellite Accelerometry
2000SAGE is a project for a satellite accelerometric mission aimed at deterniining with high precision the low-medium coefficients of the earth gravity field and their time variations.
SANSO', FERNANDO +9 more
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Sportgericht, 2016
In de afgelopen decennia is de prestatiedichtheid in de topsport sterk toegenomen. Steeds grotere investeringen in termen van training, begeleiding en innovatie leveren steeds minder prestatiewinst op. De behoefte aan een gedegen trainingsprogramma waarin de balans tussen trainingsarbeid en herstel beter bewaakt wordt door toepassing van nieuwe kennis ...
Ganzevles, S.P.M. +3 more
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In de afgelopen decennia is de prestatiedichtheid in de topsport sterk toegenomen. Steeds grotere investeringen in termen van training, begeleiding en innovatie leveren steeds minder prestatiewinst op. De behoefte aan een gedegen trainingsprogramma waarin de balans tussen trainingsarbeid en herstel beter bewaakt wordt door toepassing van nieuwe kennis ...
Ganzevles, S.P.M. +3 more
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Medical and Biological Engineering and Computing, 1984
J, Verburg, W, van Aalst, A, Naves
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J, Verburg, W, van Aalst, A, Naves
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Accelerometry—Simple, but challenging
Scandinavian Journal of Medicine & Science in Sports, 2017Sievänen, H., Kujala, Urho
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Accelerometry in cardiovascular psychophysiology
Cognitive Ergonomics, Clinical Assessment and Computer-assisted Learning, 1999Interpretation of real-life stress-related cardiovascular responses requires knowledge of both the type and the amount of daily activities, since changes in body posture and locomotor activity have a profound effect on ambulatory recorded cardiovascular signals.
Tulen, Joke +4 more
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