Results 151 to 160 of about 12,784 (202)
A scalable, hyperstable intelligent fibre velocimeter for dynamic digitization of resistance training. [PDF]
Natl Sci RevOuyang J +9 more
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Experimental dataset on wave-structure interaction in a sloshing tank with a flexible floating body. [PDF]
Data BriefBernardo F +3 more
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Enhanced ultrasound particle image velocimetry (E-uPIV) enables fast flow mapping of microvasculature. [PDF]
Commun EngYin J +4 more
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Obstetrics and Gynecology Clinics of North America, 2004
The introduction of new techniques for evaluating fetal status, particularly fetuses at theoretical risk for hypoxic ischemic encephalopathy, requires the most rigorous evaluation before widespread clinical deployment. The considerations extend beyond clinical value to the significant medicolegal implications of a failure to predict or ascertain ...
Laura, Detti +3 more
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The introduction of new techniques for evaluating fetal status, particularly fetuses at theoretical risk for hypoxic ischemic encephalopathy, requires the most rigorous evaluation before widespread clinical deployment. The considerations extend beyond clinical value to the significant medicolegal implications of a failure to predict or ascertain ...
Laura, Detti +3 more
openaire +2 more sources
Seedless Velocimetry Measurements by Schlieren Image Velocimetry
AIAA Journal, 2011Schlieren optical systems have been used to perform velocity measurements in refractive turbulent flows using particle image velocimetry algorithms. This schlieren image velocimetry (schlieren "particle image velocimetry") technique makes use of naturally occurring refractive turbulent eddies in a flow as virtual "seed particles" upon which velocimetry
Michael J. Hargather +3 more
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Applied Optics, 1988
A new technique, digital image velocimetry, is proposed for measurement of instantaneous velocity fields of time dependent flows. A time sequence of single-exposure images of seed particles are captured with a high speed camera, and the sampled images are then digitized on an image processor, enhanced, and superposed to construct a multiple-exposure ...
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A new technique, digital image velocimetry, is proposed for measurement of instantaneous velocity fields of time dependent flows. A time sequence of single-exposure images of seed particles are captured with a high speed camera, and the sampled images are then digitized on an image processor, enhanced, and superposed to construct a multiple-exposure ...
openaire +2 more sources
Doppler Velocimetry in Obstetrics
Obstetrics and Gynecology Clinics of North America, 1990Doppler ultrasound velocimetry offers a noninvasive method for assessing velocities in the various components of the fetal circulation including the cardiac, umbilical, cerebral, and aortic flows. As the volumetric flow measurement in these circumstances is prone to significant errors, the major approach has been to analyze the maximum frequency shift ...
D, Maulik, P, Yarlagadda, G, Downing
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Planar Doppler Velocimetry: Three-Component Velocimetry in Supersonic Jets
AIAA Journal, 1998A three-component planar Doppler velocimetry system was developed and used to make mean and instantaneous velocity measurements in a Mach 2 axisymmetric freejet. The mean measurements were in good agreement with reference laser Doppler velocimetry measurements taken in the same flowfield, whereas the instantaneous measurements were in fair agreement ...
Pamela Clancy +2 more
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Doppler velocimetry in pregnancy
Seminars in Ultrasound, CT and MRI, 1993Since the late 1970s, Doppler velocimetry has been investigated extensively for use in obstetrics. Initially, this technique showed promise for the management of certain complications of pregnancy; this promise has yet to be fulfilled. Doppler velocimetry of either the uterine or umbilical vessels, which showed some merit in selecting growth-retarded ...
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Perceptual and Motor Skills, 1972
A velocimeter employing secondary emission photomultipliers has been described. A softball or other light colored object is detected against a black background under room ambient light conditions. The throwing field is triangular with a useable area of approximately 30 ft 2 .
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A velocimeter employing secondary emission photomultipliers has been described. A softball or other light colored object is detected against a black background under room ambient light conditions. The throwing field is triangular with a useable area of approximately 30 ft 2 .
openaire +2 more sources