Results 241 to 250 of about 849,570 (300)

Magnetic resonance velocity mapping of normal transtricuspid velocity profiles

The International Journal of Cardiac Imaging, 1997
To investigate the velocity profiles of transtricuspid inflow, we examined 20 normal subjects (17 males and 3 females, mean age 27 +/- 7) by the magnetic resonance imaging (MRI). Electrocardiographic gating was performed in all anatomical and flow studies, and sequences were triggered by the R wave.
Y, Nakagawa   +4 more
openaire   +2 more sources

Optimal injection velocity profiling

International Journal of Production Research, 1989
Recently, manufacturers of thermoplastic injection moulding machines have developed controllers with programmable velocity control. The speed of the ram can typically be varied in as many as ten zones during the injection process to establish a velocity profile. This velocity profile however, is determined by trial and error.
Ou-Yang, C., Maul, G. P.
openaire   +1 more source

Velocity Profiles at the Swash Zone

Coastal Structures 2003, 2004
Velocity profiles at the swash zone have been sampled with an ADVP during a large scale experiment on a fixed bed beach. The unique set of data permits to observe the time variation of the velocity distributions and to contribute to the debate concerning the variation of the friction factor, f , in a swash cycle. The analyses of the velocity data with
TOMASICCHIO, Giuseppe, FREGA F.
openaire   +3 more sources

Velocity Profile of Human Horizontal Saccades

Ophthalmologica, 1993
To assess saccadic trajectories, we evaluated the velocity profile using the 'skewness ratio' (the proportion of acceleration time to total saccadic duration) as a parameter. Horizontal cross-center saccades against target movements of 10 degrees, 20 degrees and 30 degrees were measured in 6 normal subjects using the magnetic search coil method. As the
M, Takagi   +4 more
openaire   +2 more sources

Instantaneous Velocity Profiles during Granular Avalanches

Physical Review Letters, 2005
We perform experimental measurements of the instantaneous velocity profile of the flowing layer during granular avalanches. In the pile depth, the velocity profile follows a pure exponential decrease in contrast with steady flows that are known to exhibit a well developed upper linear part. The velocity profile in the pile width is a plug flow with two
Courrech Du Pont, Sylvain   +4 more
openaire   +2 more sources

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