Results 241 to 250 of about 1,892,477 (294)
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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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Geometric Accuracy of Three-Dimensional Molecular Overlays
Journal of Chemical Information and Modeling, 2006This study examines the dependence of molecular alignment accuracy on a variety of factors including the choice of molecular template, alignment method, conformational flexibility, and type of protein target. We used eight test systems for which X-ray data on 145 ligand-protein complexes were available.
Qi, Chen +2 more
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Dimensional accuracy of 3D printed vertebra
SPIE Proceedings, 20143D printer applications in the biomedical sciences and medical imaging are expanding and will have an increasing impact on the practice of medicine. Orthopedic and reconstructive surgery has been an obvious area for development of 3D printer applications as the segmentation of bony anatomy to generate printable models is relatively straightforward ...
Kent Ogden +4 more
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Dimensional accuracy of thermoformed polymethyl methacrylate
The Journal of Prosthetic Dentistry, 1996Thermoforming of polymethyl methacrylate sheet is used to produce a number of different types of dental appliances. The purpose of this study was to determine the dimensional accuracy of thermoformed polymethyl methacrylate specimens. Five blanks of the acrylic resin were thermoformed on stone casts prepared from a silicone mold of a brass master die ...
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Dimensional Accuracy of Three Different Alginate Impression Materials
Journal of Prosthodontics, 1995Purpose The purpose of this study was to evaluate the dimensional stability of three different alginate impression materials (Jeltrate [Caulk Dentsply, LD Caulk Division, Dentsply International, Milford, DE], Hydrogum [Zhermack, Padoua, Italy], and a new hydrophilic alginate material [Essential Dental Systems, South Hackensack, NJ]) under five ...
B I, Cohen +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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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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Three‐dimensional measurement accuracy of skull surface landmarks
American Journal of Physical Anthropology, 1988AbstractCraniometric measuremnts from a three‐dimensional (3‐D) digitizing system were compared with those from sliding and spreading calipers. The 3‐D system consisted of a 3‐Space Digitizer, Macintosh Plus computer, and Unigraphics CAD/CAM system. Twenty‐nine standard measurements were made and repeated on two normal and three deformed skulls.
C F, Hildebolt, M W, Vannier
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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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High-accuracy bi-dimensional drift chambers
Nuclear Instruments and Methods, 1975Abstract Drift chambers of moderate size, with a delay-line read-out of the position of the avalanche, give the position of soft radiations with the same accuracy in all directions: 0.4 mm (fwhm).
A. Breskin, G. Charpak, F. Sauli
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