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  • Dimensional Accuracy of Dental Models for Three

    Previous studies on accuracy of three-dimensional (3D) printed model focused on full arch measurements at few points. The aim of this study was to examine the dimensional accuracy of 3D-printed models which were teeth-prepped for three-unit fixed prostheses, especially at margin and proximal contact areas.

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  • Dimensional Accuracy of Dental Models for Three

    Previous studies on accuracy of three-dimensional (3D) printed model focused on full arch measurements at few points. The aim of this study was to examine the dimensional accuracy of 3D-printed models which were teeth-prepped for three-unit fixed prostheses, especially at margin and proximal contact areas. The prepped dental model was scanned with a desktop scanner.

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  • OSA | Three-dimensional beam profiling used to ...

    Two-dimensional (2D) beam profiling is an emerging technique used to characterize the beam homogeneity in dental light-curing units (LCUs). This project developed a method to combine multiple 2D beam profiles that had been measured along the beam path to create a 3D profile of the beam. This allowed a quantitative investigation of beam divergence and homogeneity at different distances from …

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  • [PDF] Three-Dimensional Finite Element Analysis of ...

    The aim of this study was to evaluate the influence of different framework materials on biomechanical behaviour of anterior two-unit cantilever resin-bonded fixed dental prostheses (RBFDPs). A three-dimensional finite element model of a two-unit cantilever RBFDP replacing a maxillary lateral incisor was created. Five framework materials were evaluated: direct fibre-reinforced composite (FRC ...

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  • Microfabrication and Test of Three-Dimensional Polymer ...

    2020-8-6 · The unit was microfabricated by means of SU-8 3D lithography. The 3D microstructure for coaxial sheathing was designed, microfabricated, and tested. Three-dimensional hydrofocusing capability was demonstrated with an experiment to sort labeled tanned sheep erythrocytes (red blood cells). This polymer hydro-focusing microstructure

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  • Suction device for dental treatment units -

    A suction device with a suction hose and suction cannula for dental treatment units for the sucking off of the spray mist during dental treatment processes in which the suction hose is placed on or in a flexible tube, which is movable in three-dimensional manner, so that the suction hose can be brought into the treatment position and can be positioned there without any need for a dental nurse.

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  • making work easy 1 - Renfert

    2020-2-19 · three-dimensional spatial representation is perfect for critically examining work objects. This makes many routine tasks, like finishing and modeling, much more precise and safer. Depending on the indication, a simple mouse click lets you toggle between the 3D and 2D modes. Work ergonomically A dental technician’s work assumes a

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  • A three-dimensional polyhedral unit model for grain ...

    A model for the three-dimensional structure of the repeating Asn-Pro-Asn-Ala tetrapeptide of the immunodominant circumsporozoite protein of Plasmodium falciparum has been developed. A trial structure in the form of a type I beta turn with asparagine side chains hydrogen-bonded to the backbone peptide linkages was used as a starting point.

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  • Theoretically determined three-dimensional structure

    A three-dimensional photonic crystal may provide single-mode, low-loss, group-velocitydispersionless, and compact waveguides. We report designs of double-heterojunction optical waveguides in a threedimensional photonic crystal. Compact optical waveguide modes are induced by modulating unit cells onedimensionally or two-dimensionally.

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  • making work easy 1 - Renfert

    2020-2-19 · dental practice, patients and specialists 4 Creation of photos and video sequences Optimum assessment of object structures in 3D mode The EASY view 3D’s three-dimensional mode enables easy hand-eye coordination and a natural working position. Its three-dimensional spatial representation is perfect for critically examining work objects.

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  • High-precision 3D metrology | fast, precise

    2016-1-1 · Polyetheretherketone (PEEK) is a synthetic, tooth colored polymeric material that has been used as a biomaterial in orthopedics for many years , , .The monomer unit of etheretherketone monomer polymerizes via step-growth dialkylation reaction of bis-phenolates to form polyetheretherketone.A common synthesis route for PEEK is the reaction between 4,4′-difluorobenzophenone and the …

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  • Applications of polyetheretherketone (PEEK) in oral ...

    2021-7-1 · Three-dimensional remodeling of functional cerebrovascular architecture and gliovascular unit in leptin receptor-deficient mice . Published July 01, 2021 Article Information. Volume: 41 issue: 7, page(s): 1547-1562 ...

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  • Three-dimensional remodeling of functional

    3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created. Each of these layers can be seen as a ...

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  • What is 3D printing? How does a 3D printer work?

    A system for generating three-dimensional objects by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, successive adjacent laminae, representing corresponding successive adjacent cross ...

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  • US4575330A - Apparatus for production of three

    2020-5-7 · A Heterometallic Three-Dimensional Metal-Organic Framework Bearing an Unprecedented One-Dimensional Branched-Chain Secondary Building Unit. Molecules ( IF 3.267 ) Pub Date : 2020-05-07 , DOI: 10.3390/molecules25092190

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  • Geometric Modeling in Three Dimensions Unit Test

    Start studying Geometric Modeling in Three Dimensions Unit Test 100%. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

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  • Geometry unit 8 Flashcards | Quizlet

    A(n) _____ is a form of three-dimensional projection in which all three planes are drawn parallel to established axes and at full scale. orthographic projection A(n) ______ is a form of three-dimensional projection that presents six views of an object in which the line of sight for each view is perpendicular to the plane of the figure.

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  • Geometry B unit 8 Flashcards | Quizlet

    A projected point is a point that lies on _____ of the three planes of a three-dimensional coordinate system and corresponds to two of the numbers in an ordered triple. the center A(n) _____ projection is a form of three-dimensional projection in which all three planes are …

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  • A three-dimensional microvascular gas exchange unit

    For the capture of CO 2 from mixed gas streams, materials for increased gas exchange are necessary. Efficient gas exchange systems already exist in the form of vascularized lung-tissue. Herein we report a fabrication technique for the synthesis of three-dimensional microvascular gas exchange units capable of removing CO 2 from flowing gas created using the recently reported Vaporization of a ...

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  • Three-dimensional physical simulation and

    2016-3-16 · Based on a multi-well fractured-vuggy geological example unit in the Tahe Oilfield, a large-scale three-dimensional physical model was designed and constructed to simulate the fluid flow according to similarity criteria. Several factors were considered in the design, including storage types, filling types, and filling percentages of storage space.

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  • Constructing three-dimensional mappings onto the

    2010-4-1 · In the construction of the three-dimensional image the e 3-component has been cut off.This table lists the corresponding statistical values for the e 3-component and exhibits the influence of the cut-off effect of this component.We observe that the values of the e 3-component of f N are rather small in the case of the unit cube. The variance of the e 3-component is rather small, too.

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  • Three-Dimensional Single Gyroid Photonic Crystals with

    2016-6-23 · Three-Dimensional Single Gyroid Photonic Crystals with a Mid-Infrared Bandgap Siying Peng,† Runyu Zhang,‡ Valerian H. Chen,† Emil T. Khabiboulline,† Paul Braun,‡ and Harry A. Atwater*,† †Applied Physics, California Institute of Technology, Pasadena, California 91125, United States ‡Department of Materials Science and Engineering, University of Illinois at Urbana−Champaign ...

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  • A three-dimensional structure built of paddle-wheel

    2019-2-1 · Introduction. The incorporation of three-dimensional (3D) heart models during cardiology consultations was a quality improvement (QI) initiative to facilitate open communication and improve information exchange between healthcare providers and parents of critically ill children (Biglino et al., 2015).The tangible anatomical models have allowed parents and families to become familiar with the ...

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  • The usefulness of incorporating three-dimensional

    Three-dimensional and two-dimensional unit cell models for describing the mechanical behaviour of particle reinforced metal matrix composites (MMCs) are compared by assessing predictions obtained from microgeometries consisting of 20 randomly positioned elastic particles embedded in an elastoplastic matrix. The elastic response to uniaxial loading predicted by the three-dimensional unit cells ...

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  • High-precision 3D metrology | fast, precise

    Unit cell in two dimensional and three dimensional lattices. A regular 3-D arrangement of ions or atoms or molecules in the crystal is generally described in the context of a unit cell and the space lattice. To understand these two terms, let’s take 2-D patterns. Crystalline solids’ geometric arrangement belonging to constituent particles ...

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  • Comparisons between three-dimensional and two

    Learn with the Complete K-5 Math Learning Program. The attributes of a three-dimensional figure are faces, edges and vertices. The three dimensions compose the edges of a 3D geometric shape. A cube, rectangular prism, sphere, cone and cylinder are the basic 3-dimensional shapes we see around us.

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  • Dental treatment unit with measuring device and

    2005-8-19 · A dental treatment unit including at least one mechanical connection for a three-dimensional measuring device for the measurement of teeth, treatment situations and tooth models. The three-dimensional measuring device and the dental treatment unit may be connected to each other by way of means for the exchange of data and/or control commands.

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  • Three-Dimensional Finite Element Analysis of Anterior

    The aim of this study was to evaluate the influence of different framework materials on biomechanical behaviour of anterior two-unit cantilever resin-bonded fixed dental prostheses (RBFDPs). A three-dimensional finite element model of a two-unit cantilever RBFDP replacing a maxillary lateral incisor was created. Five framework materials were evaluated: direct fibre-reinforced composite (FRC ...

    Get Price
  • An ITT Brand Vertical Turbine Pumps

    2019-7-23 · 8 Vertical Turbine Pumps Vertical Turbine Pumps Model VIT Vertical Industrial Turbine Pump For higher flows refer to high capacity section • Flows to 70,000 GPM (15,900 m3/Hr) • Heads to 3,500 feet (1,060 m) • Pressures to 2,500 psi (76kg/cm²) • …

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  • The Three-Dimensional Geologic Model Used for the

    2013-1-29 · Toward a Three-Dimensional Model for . Petroleum Assessment. To characterize and visualize subsurface geology in a . given study area, the USGS recently began building three-dimensional geologic models of several regions and features in California, including the Santa Clara Valley (Jachens and others, 2005), the Hayward Fault Zone (Graymer and ...

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  • THE THREE DIMENSIONAL SOLUBILITY PARAMETER

    2016-3-26 · The three dimensional solubility parameter concept turned out to be that . 12 portion of the study which has attracted the most interest. In addition to better defining hydrogen and polar bonding, it has been used to characterize solvents,

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  • Three Dimensional Geometry Equations of Planes in Three ...

    2015-3-16 · Three Dimensional Geometry Equations of Planes in Three Dimensions Normal Vector In three dimensions, the set of lines perpendicular to a particular vector that go through a fixed point define a plane. To try out this idea, pick out a single point and from this point imagine a …

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  • Three-dimensional photonic crystal waveguides and ...

    A three-dimensional photonic crystal may provide single-mode, low-loss, group-velocitydispersionless, and compact waveguides. We report designs of double-heterojunction optical waveguides in a threedimensional photonic crystal. Compact optical waveguide modes are induced by modulating unit cells onedimensionally or two-dimensionally.

    Get Price
  • 10.3: Lattices and Unit Cells - Chemistry LibreTexts

    2020-11-5 · 10.3: Lattices and Unit Cells. The regular three-dimensional arrangement of atoms or ions in a crystal is usually described in terms of a space lattice and a unit cell. To see what these two terms mean, let us first consider the two-dimensional patterns shown in Figure 10.3. 1. We can think of each of these three structures as a large number of ...

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  • Vectors in Two & Three Dimensions - Video & Lesson ...

    3 Dimensional Fitness Leland. June 12 at 5:19 PM ·. Excited to get these ladies back to work, and watch them get faster and stronger for next season. They keep me laughing every time they come in for workouts…. And of course they time for selfies! 33.

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  • Three-dimensional remodeling of functional

    2021-7-1 · Three-dimensional remodeling of functional cerebrovascular architecture and gliovascular unit in leptin receptor-deficient mice . Published July 01, 2021 Article Information. Volume: 41 issue: 7, page(s): 1547-1562 ...

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  • Sonic and ultrasonic scalers in periodontal treatment:

    2007-1-23 · The sound level that exceeds this frequency is called ultrasonic sound. In dental units, equipment such as ultrasonic scalers, high-speed air turbine drills, high-volume evacuators, and amalgamators mostly produce high intensity noise that may be a potential hazard to the auditory system of the persons exposed to the ultrasound.

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  • The Three-Dimensional Geologic Model Used for the

    2013-1-29 · Toward a Three-Dimensional Model for . Petroleum Assessment. To characterize and visualize subsurface geology in a . given study area, the USGS recently began building three-dimensional geologic models of several regions and features in California, including the Santa Clara Valley (Jachens and others, 2005), the Hayward Fault Zone (Graymer and ...

    Get Price
  • Three-Dimensional Optical Display Unit, Proceedings

    1978-12-22 · Three-Dimensional Optical Display Unit Three-Dimensional Optical Display Unit Pressel, Philip 1978-12-22 00:00:00 This paper presents a method to visually display, in true three dimensions, light spots representing objects or targets. They can move in three spatial directions within a specified volume as directed by incoming electronic information.

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  • 3D Models, CAD Solids - 3D CAD Browser

    Download 3D Models for 3ds Max, Maya, Cinema 4D, Lightwave, Softimage, Blender, Solidworks, Inventor and other CAD 3D modeling and animation software.

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  • Self-supporting structural unit having a three

    A self-supporting structural unit having a three-dimensional surface comprising: a first plurality of identical polygons, such as, for example, equilateral triangles, having predefined, fixed areas and equal sides of a predetermined constant length: and a second plurality of polygons, such as, for example, hexagons, having various areas but with equal sides of a predetermined constant length ...

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  • Three dimensional transformations - SlideShare

    Unit five is about describing, representing and using the relationships between two-dimensional and three-dimensional figures to model and solve problems arising in everyday life. Throughout the unit, students examine the relationships between 1-D, 2-D and 3-D geometric representations to determine which ones to apply in describing and modeling ...

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  • Extending to Three Dimensions | Math - New Visions

    2019-6-5 · To realize the promise of the Next Generation Science Standards, educators require new three-dimensional, phenomenon-based curriculum materials. We describe and report on pilot test results from such a resource—Evolution: DNA and the Unity of Life. Designed for the Next Generation Science Standards, this freely available unit was developed for introductory high school biology students.

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  • Development and pilot testing of a three-dimensional ...

    One-dimensional (or 1D) Two-dimensional ( or 2D) Three-dimensional (or 3D) For example, Zero Dimensional. A point is a zero-dimensional object as it has no length, width or height. It has no size. It tells about the location only. One Dimensional. A line segment drawn on a surface is a one-dimensional object, as it has only length and no width.

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