Results 251 to 260 of about 4,846,533 (293)
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Dimensional stability and accuracy of rubber impression materials*
Australian Dental Journal, 1974Abstract— Fourteon rubbor elastomeric impression materials used in single and double mix techniques when examined for dimensional stability and accuracy showetl variations in horizontal dimension depending upon whether singlo or double impressions were used.
P J, Henry, D J, Harnist
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DIMENSIONAL ACCURACY OF MAGNETIC RESONANCE IN STUDIES OF THE HEART
The Lancet, 1985Magnetic resonance (MR) can provide high-resolution tomographic images of the heart at any part of the cardiac cycle. Tests on static and dynamic phantoms showed that the technique can give accurate measurements of ventricular wall thickness, cavity volume, and stroke volume. In 20 patients with angina pectoris, electrocardiographically gated MR images
D B, Longmore +9 more
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Accuracy and traceability in dimensional measurements
SPIE Proceedings, 1998While the importance of the concepts of measurement accuracy and measurement traceability has long been recognized, they have not always been applied in a consistent or rigorous manner. In 1993 the International Organization for Standards (ISO) published two documents which establish consistent definitions of these and other metrology terms and provide
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High accuracy three-dimensional model generation
2021This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Accuracy testing of three-dimensional digitizing systems
Dental Materials, 1992An accuracy test designed as a standard for digital occlusal wear measurement devices was applied to such a device designed by the authors. The test was used for quantitative determination of measurement error for a given angle of tangential contact with the inclined planes of the surface being measured.
E R, Hewlett, M E, Orro, G T, Clark
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American Journal of Orthodontics and Dentofacial Orthopedics, 2021
Fabrication of orthodontic aligners directly via 3-dimensional (3D) printing presents the potential to increase the efficiency of aligner production relative to traditional workflows; however tunable aspects of the 3D-printing process might affect the dimensional fidelity of the fabricated appliances. This study aimed to investigate the effect of print
Ryan A, Boyer +3 more
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Fabrication of orthodontic aligners directly via 3-dimensional (3D) printing presents the potential to increase the efficiency of aligner production relative to traditional workflows; however tunable aspects of the 3D-printing process might affect the dimensional fidelity of the fabricated appliances. This study aimed to investigate the effect of print
Ryan A, Boyer +3 more
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In Vitro Measurement Accuracy of Three‐Dimensional Ultrasound
Echocardiography, 2001Objectives: We sought to validate distance and volume measurements in three‐dimensional (3‐D) ultrasound images. Background: Even with the latest equipment, it is not known how accurate 3‐D echocardiographic measurements are. Methods: Six models were imaged in ethanol solution and two within a tissue phantom using a mechanical rotation device rotating ...
R J, Zotz +3 more
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High Accuracy Solution of Three-Dimensional Biharmonic Equations
Numerical Algorithms, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Irfan Altas +2 more
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Dimensional accuracy of tubes in cold pilgering
Journal of Materials Processing Technology, 2016Abstract The effects of process conditions on the dimensional accuracy of tubes in cold pilgering were studied. The dimensions included the ovalities of the outer and inner diameters and the eccentricity ratio of the wall thickness. The permissible variations of the dimensions on the objective tubes were of 10 μm order.
Hideaki Abe +4 more
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Accuracy and dimensional stability of a combined hydrocolloid impression system
The Journal of Prosthetic Dentistry, 1992The accuracy of a combined hydrocolloid impression system was studied as a function of time of pour. There was little change in dimension between posts for all time intervals studied. No statistically significant differences were noted among the observation periods until 3 hours.
M C, Peters, A, Tieleman
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