Results 221 to 230 of about 47,435 (267)
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Ultrasonic dental cutting instrument : I
The Journal of the American Dental Association, 1955Current operative methods for cavity preparation have a number of inherent disadvantages. Rotary instruments em ploying the recently introduced increased speeds and modified cutting instruments have allowed more rapid cavity prepara tion, but the frictional heat and vibration during cutting may cause pain, trauma and apprehension to the patient.
A G, NIELSEN +2 more
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An instrument for ultrasonic biometry.
Canadian journal of ophthalmology. Journal canadien d'ophtalmologie, 1978A simple instrument has been developed for measurement of axial length and anterior chamber depth. It is pocket sized, and the digital output is easy to interpret. The long term accuracy of 0.2 mm is ideal in helping to eliminate errors of lens selection.
A, Mortimer +2 more
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Obstetrical Use of the Ultrasonic Doppler Instrument
JAMA: The Journal of the American Medical Association, 1968Doppler ultrasonics provides the first positive sign of pregnancy. Fetal cardiovascular activity can usually be detected shortly after the second missed menses. At 11 weeks of pregnancy, fetal life can be proven in 90% of patients, and after 17 weeks, in 100%. The ultrasonic Doppler diagnostic instrument is of great value in threatened abortion, missed
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ULTRASONIC SIGNAL PROCESSOR FOR A HAND HELD ULTRASONIC DIAGNOSTIC INSTRUMENT
The Journal of the Acoustical Society of America, 2010A hand held ultrasonic instrument is provided in a portable unit which performs both B mode and Doppler imaging. The instrument includes a transducer array mounted in a hand-held enclosure, with an integrated circuit transceiver connected to the elements of the array for the reception of echo signals. A digital signal processing circuit performs both B
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Ultrasonic Instrumentation for Simultaneous Rheological and Ultrasonic Measurements on a Rheometer
2023 IEEE International Ultrasonics Symposium (IUS), 2023Houhat, Nesrine +5 more
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