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  • Turbine from The 3D Printer – 3D Science Valley

    2019-9-22u2002·u2002Together with the H+E-Produktentwicklung GmbH in Moritzburg, Saxony, the Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM in Dresden has developed a true-to-scale gas turbine that impressively demonstrates the current potentials and limitations of powder bed-based additive technologies.

    Get Price
  • Three-dimensional fuzzy control for ship electric ...

    The three-dimensional fuzzy controller is useful in improving the turbine control of the ship electric propulsion system. Discover the world's research 20+ million members

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  • Comparison of cutting efficiencies between electric and ...

    2018-3-19u2002·u2002The electric handpiece is more efficient at cutting various materials used in dentistry, especially ma-chinable glass ceramic, silver amalgam, and high noble alloy, than the air-turbine handpiece. (J Prosthet Dent 2010;103:101-107) Comparison of cutting efficiencies between electric and air-turbine dental handpieces

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  • Cutting characteristics of dental glass ceramics during in ...

    2013-8-1u2002·u2002A two-dimensional computer-assisted cutting apparatus described previously was modified for the current dental cutting testing. The new overall experimental setup is shown in Fig. 2(a). It consisted of a dental electric motor (NL400, NSK, Japan), an electric handpiece (Ti95L, NSK, Japan), a three-dimensional, piezoelectric force dynamometer (9257 A, Kistler, Switzerland), a charge amplifier ...

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  • Three-dimensional manufacturing methods and systems

    The gas turbine engine 10 may be any one of a number of different gas turbine engines offered by General Electric Company of Schenectady, N.Y., including, but not limited to, those such as a 7 or a 9 series heavy duty gas turbine engine and the like. The gas turbine engine 10 may have different configurations and may use other types of ...

    Get Price
  • Dimensional Accuracy of Dental Models for Three-Unit ...

    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.

    Get Price
  • Dynamic analysis of three-dimensional drivetrain system of ...

    2014-8-1u2002·u2002In our previous study, a torsional model was used to perform a dynamic analysis of a wind turbine drivetrain. However, detailed characteristics could not be obtained with this torsional model. In this paper, the mathematical model of the wind turbine drivetrain is extended to a three-dimensional dynamic model. A typical arrangement with one low-speed planetary gear stage and two highspeed spur ...

    Get Price
  • Three-dimensional simulation of unsteady flows in a pump ...

    2016-5-12u2002·u2002Three-dimensional numerical simulation for a prototype pump-turbine has been performed to investigate the transient characteristics and flow behaviors in the startup process. The rotational speed, which varies with runner torque and inertial of the rotating systems, is obtained by hydraulic-force coupling method.

    Get Price
  • A Navier-Stokes Analysis of Three-Dimensional Turbulent ...

    A Navier-Stokes Analysis of Three-Dimensional Turbulent Flows Inside Turbine Blade Rows at Design and Off-Design Conditions C. Hah Fluid Mechanics and Combustion Branch, Corporate Research and Development, General Electric Company, Schenectady, N.Y. 12301

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  • Materials for Wind Turbine Blades: An Overview

    Composite materials are used typically in blades and nacelles of wind turbines. Generator, tower, etc. are manufactured from metals. Blades are the most important composite based part of a wind turbine, and the highest cost component of turbines. A wind turbine blades consists of two faces (on the suction side and the pressure side), joined

    Get Price
  • high-selling lares dental turbine handpieces for healthy ...

    2021-7-3 · Made from high-quality and low-wear materials, these dental turbines have an excellent service life and will minimize your service costs. Budget friendly dental turbine. Whether you are a new dentist, or an experienced practitioner looking for a budget friendly dental turbine, consider the SMARTtorque line.

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  • Dental Biomaterials

    Publisher Summary. The dental air-turbine handpiece rapidly gained widespread acceptance by the dental profession after its introduction in the late 1950s and it continues to be used as the main means of carrying out cutting work in clinical dental practice, whether of tooth tissue or restorative materials.

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  • US5121329A - Apparatus and method for creating three ...

    Apparatus incorporating a movable dispensing head provided with a supply of material which solidifies at a predetermined temperature, and a base member, which are moved relative to each other along 'X,' 'Y,' and 'Z' axes in a predetermined pattern to create three-dimensional objects by building up material discharged from the dispensing head onto the base member at a …

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  • [An approach to the dental CAD/CAM using the electric ...

    [An approach to the dental CAD/CAM using the electric discharge machining (2). Development of the three dimensional multi functional NC machine and the machining properties by the RAM type EDM in diionized water]

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  • Materials for Wind Turbine Blades: An Overview

    materials Review Materials for Wind Turbine Blades: An Overview Leon Mishnaevsky Jr. * ID, Kim Branner, Helga Nørgaard Petersen, Justine Beauson, Malcolm McGugan and Bent F. Sørensen Department of Wind Energy, Technical University of Denmark, 4000 Roskilde, Denmark; [email protected] (K.B.);

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  • Air Compressor - CAGI

    2016-8-31u2002·u2002a small air turbine to turn a shaft, as in a dental drill; or it can be expanded through a nozzle to produce a high-speed jet, as in a paint sprayer. Compressed air provides torque and rotation power for pneumatic tools, such as drills, brushes, nut runners, riveting guns and screwdrivers. Such tools are generally powered by

    Get Price
  • Three-dimensional simulation of unsteady flows in a pump ...

    2016-5-12u2002·u2002Three-dimensional numerical simulation for a prototype pump-turbine has been performed to investigate the transient characteristics and flow behaviors in the startup process. The rotational speed, which varies with runner torque and inertial of the rotating systems, is obtained by hydraulic-force coupling method.

    Get Price
  • Turbine Airfoil Design Optimization

    2015-2-6u2002·u2002A method for interpreting the flowfield solution to compute the airfoil quality has been developed and is used to compute the objective function during optimization. Aerodynamic, mechanical and geometry constraints are imposed on the design to ensure that the optimized design meets feasibility requirements of all engineering disciplines.

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  • Gas turbines: operating conditions, components and ...

    2014-1-1u2002·u2002The gas turbine has three major sections, namely the compressor, combustor and turbine (although, from a materials perspective, the other major component groups – rotor, casing and auxiliaries – are also of interest). The compressor, combustor and turbine sections are highlighted in Fig. 1.1. Download : Download full-size image. 1.1.

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  • Computations of a Film Cooled Turbine Rotor Blade With

    2015-2-18u2002·u2002Weigand, B, & Harasgama, SP. 'Computations of a Film Cooled Turbine Rotor Blade With Non-Uniform Inlet Temperature Distribution Using a Three-Dimensional Viscous Procedure.' Proceedings of the ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration. The ...

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  • Turbine from The 3D Printer – 3D Science Valley

    2019-9-22u2002·u2002Together with the H+E-Produktentwicklung GmbH in Moritzburg, Saxony, the Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM in Dresden has developed a true-to-scale gas turbine that impressively demonstrates the current potentials and limitations of powder bed-based additive technologies.

    Get Price
  • Three-dimensional fuzzy control for ship electric ...

    The three-dimensional fuzzy controller is useful in improving the turbine control of the ship electric propulsion system. Discover the world's research 20+ million members

    Get Price
  • Comparison of cutting efficiencies between electric and ...

    2018-3-19u2002·u2002The electric handpiece is more efficient at cutting various materials used in dentistry, especially ma-chinable glass ceramic, silver amalgam, and high noble alloy, than the air-turbine handpiece. (J Prosthet Dent 2010;103:101-107) Comparison of cutting efficiencies between electric and air-turbine dental handpieces

    Get Price
  • Cutting characteristics of dental glass ceramics during in ...

    2013-8-1u2002·u2002A two-dimensional computer-assisted cutting apparatus described previously was modified for the current dental cutting testing. The new overall experimental setup is shown in Fig. 2(a). It consisted of a dental electric motor (NL400, NSK, Japan), an electric handpiece (Ti95L, NSK, Japan), a three-dimensional, piezoelectric force dynamometer (9257 A, Kistler, …

    Get Price
  • Three-dimensional manufacturing methods and systems

    The gas turbine engine 10 may be any one of a number of different gas turbine engines offered by General Electric Company of Schenectady, N.Y., including, but not limited to, those such as a 7 or a 9 series heavy duty gas turbine engine and the like. The gas turbine engine 10 may have different configurations and may use other types of ...

    Get Price
  • Dimensional Accuracy of Dental Models for Three-Unit ...

    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.

    Get Price
  • Dynamic analysis of three-dimensional drivetrain system of ...

    2014-8-1u2002·u2002In our previous study, a torsional model was used to perform a dynamic analysis of a wind turbine drivetrain. However, detailed characteristics could not be obtained with this torsional model. In this paper, the mathematical model of the wind turbine drivetrain is extended to a three-dimensional dynamic model. A typical arrangement with one low-speed planetary gear stage …

    Get Price
  • Three-dimensional simulation of unsteady flows in a pump ...

    2016-5-12u2002·u2002Three-dimensional numerical simulation for a prototype pump-turbine has been performed to investigate the transient characteristics and flow behaviors in the startup process. The rotational speed, which varies with runner torque and inertial of the rotating systems, is obtained by hydraulic-force coupling method.

    Get Price
  • A Navier-Stokes Analysis of Three-Dimensional Turbulent ...

    A Navier-Stokes Analysis of Three-Dimensional Turbulent Flows Inside Turbine Blade Rows at Design and Off-Design Conditions C. Hah Fluid Mechanics and Combustion Branch, Corporate Research and Development, General Electric Company, Schenectady, N.Y. 12301

    Get Price
  • Materials for Wind Turbine Blades: An Overview

    Composite materials are used typically in blades and nacelles of wind turbines. Generator, tower, etc. are manufactured from metals. Blades are the most important composite based part of a wind turbine, and the highest cost component of turbines. A wind turbine blades consists of two faces (on the suction side and the pressure side), joined

    Get Price
  • three-dimensional dental turbine sound polymer materials

    Materials for Wind Turbine Blades: An Overview. 2017-11-9 · The Gedser turbine (three blades, 24 m rotor, 200 kW, Figure 1 b) was the first success story of wind energy, running for …

    Get Price
  • A practice manager's guide to dental handpieces ...

    2018-8-22u2002·u2002Dental handpiece types – air turbine versus electrical. There are two systems for powering handpieces: air turbine and electrical. Air driven handpieces contain an air-driven spinning turbine to generate rotation, and are powered by compressed air. They can reach speeds of up to 400,000 rpm with a variable torque.

    Get Price
  • Materials for Wind Turbine Blades: An Overview

    materials Review Materials for Wind Turbine Blades: An Overview Leon Mishnaevsky Jr. * ID, Kim Branner, Helga Nørgaard Petersen, Justine Beauson, Malcolm McGugan and Bent F. Sørensen Department of Wind Energy, Technical University of Denmark, …

    Get Price
  • ONERA three-dimensional icing model

    2012-5-17u2002·u2002Prediction of Ice Shape for Three-Dimensional Engine Inlet Based on the Proper Orthogonal Decomposition Method 1 August 2014 Advanced Materials Research, Vol. 1008-1009 Frost formation mechanism analysis and frost growth prediction on ground aircraft

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  • DWS Systems

    2021-9-27u2002·u2002VITRA SERIES: High definition transparent materials. The Vitra series materials are developed by DWS to faithfully, solidly and accurately reproduce the characteristics of glass, crystal and plastic materials, capable of superior transparency, guaranteeing the best final performance, also in terms of dimensional stability, for single objects or components.

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  • Three-Dimensional BioAssembly Tool for Generating

    2004-11-22u2002·u2002This report details studies evaluating the use of a three-dimensional, direct-write cell deposition system to construct spatially organized viable structures. A direct-write bioassembly system was designed and fabricated to permit layer-by-layer placement of cells and extracellular matrix on a variety of material substrates.

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  • Section 22 62 19.74 - DENTAL VACUUM AND

    2015-8-19u2002·u2002This section specifies central piped high volume oral evacuation (HVE) system for dental operatories, valving, vacuum producers, separators, electric motors, starters and …

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  • Axial-Flow Compressors

    2019-5-6u2002·u2002turbine effi ciency is dependent on two basic parameters: 1. Increase in Pressure Ratio 2. Increase in Firing Temperature It also should be remembered that the Gas Turbine Axial Flow Compressor consumes between 55%-65% of the power produced by the Turbine section of the gas turbine. Table 1 Axial Flow Compressor Characteristics Type of Application

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  • Three dimensional printing of metamaterial embedded ...

    2019-4-8u2002·u2002Three-dimensional printers have revolutionized many scientific fields with its low-cost, accessibility and ease of printing. In this paper, we show how stereolithography (SLA) based 3D …

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  • Design of Airfoils for Wind Turbine Blades

    2005-5-31u2002·u200203 May, 2004 DUWIND, section Wind Energy, Faculty CiTG 1 Design of Airfoils for Wind Turbine Blades Ruud van Rooij ([email protected]) Nando Timmer

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  • three-dimensional dental turbine sound polymer materials

    Materials for Wind Turbine Blades: An Overview. 2017-11-9 · The Gedser turbine (three blades, 24 m rotor, 200 kW, Figure 1 b) was the first success story of wind energy, running for …

    Get Price
  • OP 3D™ Award winning innovations for ... - KaVo Dental

    2021-10-1u2002·u2002The KaVo OP 3D makes choosing your X-ray system simple. It is a complete X-ray platform that provides easy-to-use features throughout the entire dental imaging workflow. With its versatile imaging programs and intuitive user interface, the KaVo OP 3D in its different configurations offers imaging excellence for a variety of users, ranging from general dental practitioners to

    Get Price
  • Dental practice equipment

    2021-9-29u2002·u2002OXYGENAL™ 6 For water germ reduction in dental units. CENTRO™ Support System is THE pillar of strength in your practice. ERGOcam™ One Small intraoral camera, great results. Foot control Tailored to your comfort from head to foot. X-ray at your dental chair Saving time and money: the KaVo X-ray at your KaVo dental chair.

    Get Price
  • Steam Turbines - Elliott Group

    Elliott steam turbines are rated for inlet steam conditions up to 2000 psig/1005 degrees F and speeds up to 20,000 rpm. Elliott steam turbines come in a variety of sizes ranging from small, 20 HP (15 kW) single-stage units, to large 175,000 HP (130,000 kW) multi-valve, multi-stage extraction condensing units. These units can be built to API ...

    Get Price
  • Air Compressor - CAGI

    2016-8-31u2002·u2002a small air turbine to turn a shaft, as in a dental drill; or it can be expanded through a nozzle to produce a high-speed jet, as in a paint sprayer. Compressed air provides torque and rotation power for pneumatic tools, such as drills, brushes, nut runners, riveting guns and screwdrivers. Such tools are generally powered by

    Get Price
  • Fluid Mechanics, Thermodynamics of Turbomachinery

    2014-9-9u2002·u2002three-dimensional flows in axial turbomachines has been extended; in particular the section concerning the constant specific mass flow design of a turbine nozzle has been clarified and now includes the flow equations for a following rotor row.

    Get Price
  • CONSTRUCTION OF TURBINE MIXER

    CONSTRUCTION OF TURBINE MIXER ABSTRACT The Turbine Mixer was Fabricated at the Mechanical Engineering Workshop of Institute of Management and Technology, Enugu. The method of the fabrication of the turbine mixer involved a preliminary computation of the dimensions of the standard turbine in relation to the dimension of the reacting vessel in which

    Get Price
  • Performance Estimation of Axial Flow Turbines - H. R. M ...

    1970-6-1u2002·u2002A comprehensive method of estimating the performance of axial flow steam and gas turbines is presented, based on analysis of linear cascade tests on blading, on a number of turbine test results, and on air tests of model casings. The validity of the use of such data is briefly considered. Data are presented to allow performance estimation of ...

    Get Price
  • Chapter-1 Introduction to Engineering Materials

    • Mechanical engineers search for high temp material so that gas turbines, jet engines etc can operate more efficiently and wear resistance materials to manufacture bearing materials • Electrical engineers search for materials by which electrical devices or machines can be operated at a faster rate with minimum power losses

    Get Price
  • Chapter 5 Dimensional Analysis and Similarity

    2008-9-26u2002·u20025.2 The Principle of Dimensional Homogeneity Re p Re m 25.3 998V 0. p 0 (0 0. 1 001) or V p 0.0253 m/s 2.53 cm/s Ans. C Fp C Fm 1.14 or F p 7.31 10 7 N Ans. It would obviously be difficult to measure such a tiny drag force. Historically, the first person to write extensively about units and dimensional reasoning

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  • OP 3D™ Award winning innovations for ... - KaVo Dental

    2021-10-1u2002·u2002The KaVo OP 3D makes choosing your X-ray system simple. It is a complete X-ray platform that provides easy-to-use features throughout the entire dental imaging workflow. With its versatile imaging programs and intuitive user interface, the KaVo OP 3D in its different configurations offers imaging excellence for a variety of users, ranging from general dental practitioners to

    Get Price
  • Dental practice equipment

    2021-9-29u2002·u2002OXYGENAL™ 6 For water germ reduction in dental units. CENTRO™ Support System is THE pillar of strength in your practice. ERGOcam™ One Small intraoral camera, great results. Foot control Tailored to your comfort from head to foot. X-ray at your dental chair Saving time and money: the KaVo X-ray at your KaVo dental chair.

    Get Price
  • Steam Turbines - Elliott Group

    Elliott steam turbines are rated for inlet steam conditions up to 2000 psig/1005 degrees F and speeds up to 20,000 rpm. Elliott steam turbines come in a variety of sizes ranging from small, 20 HP (15 kW) single-stage units, to large 175,000 HP (130,000 kW) multi-valve, multi-stage extraction condensing units. These units can be built to API ...

    Get Price
  • A Numerical Study on Performance of Dental Air Turbine ...

    2017-9-1u2002·u2002Three impeller samples used in commercial dental turbines (as listed in table 1) have been selected to be modeled and utilized for simulation purposes. In order to achieve an accurate modeling, first of all, the turbine handpieces have been disassembled, and the impellers are 3D scanned using a digitizer apparatus (Renishaw Company, model ...

    Get Price
  • Fluid Mechanics, Thermodynamics of Turbomachinery

    2014-9-9u2002·u2002three-dimensional flows in axial turbomachines has been extended; in particular the section concerning the constant specific mass flow design of a turbine nozzle has been clarified and now includes the flow equations for a following rotor row.

    Get Price
  • Numerical Model of Thermoelectric Topping Cycle of Coal ...

    2014-2-26u2002·u2002This study investigates the potential placement of TE on water tube wall inside a boiler at a coal fired power plant. Three dimensional (3D) numerical model of a simplified TE module is developed and hot gas temperature and steam temperature from the boiler are used as boundary conditions at the hot side and cold side of the TE.

    Get Price
  • Chapter-1 Introduction to Engineering Materials

    • Mechanical engineers search for high temp material so that gas turbines, jet engines etc can operate more efficiently and wear resistance materials to manufacture bearing materials • Electrical engineers search for materials by which electrical devices or machines can be operated at a faster rate with minimum power losses

    Get Price
  • Performance Estimation of Axial Flow Turbines - H. R. M ...

    1970-6-1u2002·u2002A comprehensive method of estimating the performance of axial flow steam and gas turbines is presented, based on analysis of linear cascade tests on blading, on a number of turbine test results, and on air tests of model casings. The validity of the use of such data is briefly considered. Data are presented to allow performance estimation of ...

    Get Price
  • Si-Based Anode Materials for Li-Ion Batteries: A Mini ...

    2014-9-27u2002·u2002Si has been considered as one of the most attractive anode materials for Li-ion batteries (LIBs) because of its high gravimetric and volumetric capacity. Importantly, it is also abundant, cheap, and environmentally benign. In this review, we summarized the recent progress in developments of Si anode materials. First, the electrochemical reaction and failure are outlined, and then, we ...

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

    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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