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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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  • 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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  • 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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  • 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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  • 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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  • 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

    2017-3-1 · In this article, we propose an algorithm that can partition the atomic structure into a connected array of three-dimensional polyhedra, and thus, present a three-dimensional polyhedral unit model for grain boundaries. A point-pattern matching algorithm is also provided for quantifying the distortions of the observed grain boundary polyhedral units.

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  • Woodpecker Dental Products at Best Price Online ...

    Ultrasurgery Unit with three-dimensional ultrasound oscillations for osteotomy and osteoplasty ₹ 176000 ₹154895 12.0% off. Woodpecker Dte D1 Ultrasonic Scaler. ... Dental turbine or Airrotar manufactured by woodpecker are light weighted with new optimized wind wheel and gas path design. Increasing the cutting efficiency by 94.6%.

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  • Microfabrication and Test of a Three-Dimensional

    2005-1-1 · This paper details a novel three-dimensional (3D) hydro-focusing micro cell sorter for micro flow cytometry applications. 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 …

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  • Dental camera for three dimensional-measurement of

    2007-1-31 · Dental camera for three dimensional-measurement of e.g. rear molar teeth, has control unit controlling predetermined target velocity of scanning unit as function of position and time of scanning unit (PAT - DE102007005625) GAUS HARRY. GAUS HARRY. Patent: Document Laid open (First ...

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  • Three-Dimensional Structural Interrelationships Within ...

    A block diagram of the Cambrian-Ordovician lithotectonic unit illustrates three-dimensional structural relationships within that sequence along the length of the central Appalachian Valley and Ridge and High Plateau provinces. The diagram shows that the Valley and Ridge province is divisible into areas within which shortening is relatively ...

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  • Generalized helices in three-dimensional Lie groups

    The invariant unit vector field˘ on G is a natural analog of the constant unit vector field onE3. It is natural to define three types of generalized helices inG by one of the first three conditions and characterize them in terms similar to the fourth one. In the case of three-dimensional Lie

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  • High-resolution, real-time three- dimensional shape ...

    2014-2-26 · Abstract. A three-dimensional (3-D) shape measurement system that can simultaneously achieve 3-D shape acquisition, reconstruction, and display at 30 frames per second (fps) with 480,000 measurement points per frame is presented. The entire processing pipeline was realized on a graphics processing unit (GPU) without

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  • US4575330A - Apparatus for production of three

    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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  • The effect of dental LED light‐curing unit

    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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  • Three-dimensional photonic crystal waveguides and ...

    2018-10-23 · The objective of this study was to evaluate the effect of two photoactivation modes of dental LED light-curing unit (LCUs) (conventional and “Soft Start” mode) on surface texture parameters of two dental resin-based nanocomposites. LED LCUs were considered as standard light-curing devices in contemporary dental practice.

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  • OP 2D™ Excellent point of entry into ... - KaVo Dental

    2 天前 · The KaVo OP 2D was developed for dental practices and smaller X-ray centres that require an efficient and highly precise, digital panoramic system. The KaVo OP 2D is part of the exceptional ORTHOPANTOMOGRAPH™ family and can be easily integrated into the workflow of your practice. Which ORTHOPANTOMOGRAPH™ is best for you? Compare our extraoral products now.

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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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  • Aspects of Computer Simulation of Liquid-Fueled

    2012-5-23 · Three-dimensional Simulation of Flow and Combustion for Pulverised Coal Injection ISIJ International, Vol. 45, No. 9 Numerical and experimental investigation of the morphology development of expansion clouds by a powder jet flow

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  • High-precision 3D metrology | fast, precise

    Day 1 ceramitec conference: September 15, 2021. 8:30 - 9:00. Welcome Coffee. 8:30 - 9:00. 9:00 - 10:30. Welcome Coffee. Words of Welcome. Task Force Hydrogen: Hydrogen for and with Ceramics – a Common Initiative of the Federal Association of the German Ceramics Industry (BVKI) and the German Ceramic Society (DKG)

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  • ceramitec conference program and speaker

    TCS - Turbine Control System. Looking for abbreviations of TCS? It is Turbine Control System. Turbine Control System listed as TCS. Turbine Control System - How is Turbine Control System abbreviated? ... Three-Dimensional Complex Space Theory: TCS: Time Critical Strike: ... (Signal Hill, CA dental equipment) TCS: Trinity Classical School ...

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  • Turbine Control System - How is Turbine Control

    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?

    Trova una vasta selezione di Strumenti odontoiatrici per studi medici e laboratori a prezzi vantaggiosi su eBay. Scegli la consegna gratis per riparmiare di più. Subito a casa e in tutta sicurezza con eBay!

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  • Strumenti odontoiatrici per studi medici e laboratori ...

    2018-6-4 · 1. Casting shape – either by drawing or pattern. Drawings should include dimensional tolerances, indications of surfaces to be machined, and datum points for locating. If only a pattern is provided, then the dimensions of the casting are as predicted by the pattern. 2. Material specification and grade (e.g. ASTM A 27/A 27M – 95 Grade 60-30 ...

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  • A New Systematic Construction of Novel Three

    2021-4-29 · A New Systematic Construction of Novel Three-Dimensional Spin Crossover Coordination Polymers Based on the [Ag I 2 (CN) 3] Building Unit. Takashi Kosone Department of Science and Engineering, Graduate School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama 350-0394, Japan.

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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 a ...

    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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  • Numerical modeling of three-dimensional heat

    T1 - Numerical modeling of three-dimensional heat transfer and fluid flowthrough interrupted plates using unit cell scale. AU - Zhang, Chao. AU - Simon, Terrence W. AU - Li, Perry Y. AU - Van De Ven, James D. PY - 2015/1/1. Y1 - 2015/1/1

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  • Low‐dose three‐dimensional reconstruction of the

    2014-7-23 · Low-dose three-dimensional reconstruction of the femur with unit free-form deformation. Xiangsen Zeng, Institute of Biomedical Manufacturing and Life Quality Engineering, School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China.

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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.

    Get Price
  • UNIT III Three Dimensional Graphics - Google Search

    2016-7-5 · 3.1 Three Dimensional Concepts 3.1.1 Three Dimensional Display Methods: To obtain a display of a three dimensional scene that has been modeled in world coordinates, we must setup a co-ordinate reference for the ‘camera’. This coordinate reference …

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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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  • Unit cell in two dimensional and three dimensional ...

    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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  • 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
  • Electroholography unit for three-dimensional display

    CONFERENCE PROCEEDINGS Papers Presentations Journals. Advanced Photonics Journal of Applied Remote Sensing

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  • Phys. Rev. E 80, 061301 (2009) - Three-dimensional ...

    2009-12-9 · In this paper, we present a systematic approach for characterization and reconstruction of statistically optimal representative unit cells of polydisperse particulate composites. Microtomography is used to gather rich three-dimensional data of a packed glass bead system. First-, second-, and third-order probability functions are used to characterize the morphology of the material, and the ...

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  • Thermal performance investigation of three

    2014-8-15 · In order to improve the heat dissipation performance of IGBT module, a new type of structure unit for Three-dimensional IGBT module packaging which can implement double-sided cooling has been built. In view of the traditional single-sided cooling structure unit of IGBT module and the new type of Three-dimensional structure unit in double-sided cooling IGBT module, a corresponding mathematical ...

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  • Thrust Network Analysis : exploring three-dimensional ...

    The method finds possible funicular solutions under gravitational loading within a defined envelope. Using projective geometry, duality theory and linear optimization, it provides a graphical and intuitive method, adopting the same advantages of techniques such as graphic statics, but offering a viable extension to fully three-dimensional problems.

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  • Three Dimensional Assessments for the NGSS |

    Three dimensional assessments require students to apply the science and engineering practices to reveal their understanding about unit concepts (disciplinary core ideas) and crosscutting concepts (the big ideas that connect all the sciences together). A short answer, multiple choice, or true/false question simply cannot assess whether students ...

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  • Extending to Three Dimensions | Math - New Visions

    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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  • 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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  • Free 3D Models - Download Free 3D Models 3DExport

    Download Free 3D Models. Some of these 3d models are ready for games and 3d printing. Available formats: c4d, max, obj, fbx, ma, blend, 3ds, 3dm, stl - 3DExport.com

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