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  • Mitsubishi Power, Ltd. | M701G Series

    2021-7-11 · High-performance large-capacity gas turbines for 50Hz power generation. In February 1997, the first unit of the 1,500°C Class M501G Series gas turbines came into commercial operation. This series features the use of steam for cooling combustors. Developed as a model with a similar design, the M701G Series for 50 Hz power generation began ...

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  • Three-dimensional CFD analysis for simulating the ...

    2014-3-1 · Pastohr et al. carried out a two-dimensional steady state numerical analysis on the whole solar chimney systems including the collector, chimney, energy storage layer, and turbine using CFD. The conservation equations for mass, momentum and energy were solved in a small-scale SCPP using the finite volume method by Koonsrisuk and Chitsomboon [13] .

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  • Structural Optimization of Compact Spherical Wind

    2021-5-26 · Three-dimensional (3D) Model of CSWS-HPS (1) Airfoil and shape of CSWS-HPS. Many studies have identified that the NACA 0018 airfoil is the most widely used and most efficient airfoil of the scaled-down version of the wind blades [].The NACA 0018 airfoil has a high lift-drag ratio and long moment arms that provide more space among the airfoils.

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  • Dimensional Surface - an overview | ScienceDirect

    The Fresnel equation can be represented by a three-dimensional surface in n space (momentum space, since n = k/k 0). This surface is known as the normal surface and depends on the particular material, i.e. on the principal values ε x, ε y, ε z. The surface consists of two shells which have only four points in common in the general case.

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  • The evolution of the CEREC system - ScienceDirect

    2006-9-1 · The initial concept comprised a small mobile CAD/CAM unit integrating a computer, keyboard, trackball, foot pedal and optoelectronic mouth camera as input devices, a monitor and a machining compartment. CEREC 3 (Sirona Dental Systems GmbH, Bensheim, Germany) divided the system into an acquisition/design unit and a separate machining unit.

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  • Dynamic characteristics and control of supercritical ...

    2021-2-1 · At the same time, it can be seen that the MRW under the three control modes is nearly the same, and combination control has a larger MRW at the beginning. Download : Download high-res image (452KB) Download : Download full-size image; Fig. 30. Response of control parameters under step command of load with three control modes.

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  • Holography And Holometry Applications In Dental

    1987-6-4 · Accurate measurements Higgins24 suggests same of dental and points out that Higgins24 suggests the same application of dental model holography and points out that 1000 holograms could be stored in the space of dental 1000 holograms could be stored in the space of sixteen dental models and each would and each would contain valuable three -dimensional information.

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  • US5121329A - Apparatus and method for creating

    Three-dimensional objects may be produced by depositing repeated layers of solidifying material until the shape is formed. Any material, such as self-hardening waxes, thermoplastic resins, molten metals, two-part epoxies, foaming plastics, and glass, which adheres to the previous layer with an adequate bond upon solidification, may be utilized.

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  • Additive manufacturing technology for porous

    2019-12-1 · 3D CAD gyroid unit cells: (a) 3 mm sheet solid gyroid unit cell with 0.3 mm offset thickness and (b) 3 mm network solid gyroid unit cell at 50% volume fraction. Although sheet solid gyroid structure shows good mechanical performance, unconnected porous structure could be a serious disadvantage.

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  • Mechanism of Fast Transition of Pressure Pulsations

    2019-7-12 · In this study, the mechanism behind the rapid time variations of the vaneless space pressure pulsations in a model pump-turbine during runaway was analyzed through three-dimensional (3D) numerical simulations.

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  • 3D printing in dentistry | British Dental Journal

    2015-12-11 · The fit of cobalt-chromium three unit fixed dental prostheses fabricated with 4 different techniques: a comparative in vitro study. Dent Mater J 2011; 27 : 356–363. Article Google Scholar

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  • Mitsubishi Power, Ltd. | M701J Series

    2021-7-11 · The J Series gas turbines are an integration of the proven G Series and elemental technologies for temperature increase as a result of the Japanese national project for development of 1,700°C class gas turbines. They operate at a turbine inlet temperature of 1,600°C. Developed as a model with a similar design, the M701J Series for 50 Hz power ...

    Get Price
  • Proceedings of the 2017 7th International

    In traditional structure, wind turbine pitch control system generally consists of two modules, the logic control unit responsible for the control logic and the servo drive unit responsible for the motor driven. In order to adapt to the integration of the system architecture and simplify complex layout...

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  • Straight-Bladed Vertical Axis Wind Turbines: History ...

    2021-6-28 · Hitachi Review Vol. 68 (2019) No. 2 is “Hitachi Technology 2019.” This issue of Hitachi Review presents topics in a variety of business fields, primarily Hitachi's digital solutions and unique products that underpin it's Social Innovation Business.

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  • Hitachi Technology 2019 : 2019 Vol.68 No.2 :

    2013-10-24 · Three-dimensional bearing load share behaviour in the planetary stage of a wind turbine gearbox. ... Effect of arc energy absorber in a wind turbine switch unit. IEEE Transactions On Power Delivery 2013; 28: 549 – 556 ... Two-time-scale coordination control for a battery energy storage system to mitigate wind power fluctuations.

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  • Wind energy literature survey no. 30 - Henriksen -

    2014-4-8 · This paper reviews the state-of-the-art of an important, rapidly emerging, manufacturing technology that is alternatively called additive manufacturing (AM), direct digital manufacturing, free form fabrication, or 3D printing, etc. A broad contextual overview of metallic AM is provided. AM has the potential to revolutionize the global parts manufacturing and logistics landscape.

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  • Metal Additive Manufacturing: A Review |

    2009-10-27 · The problem of mechanical design, performance prediction (e.g., flap-wise/edge-wise bending stiffness, fatigue-controlled life, the extent of bending-to-torsion coupling), and material selection for a prototypical 1 MW horizontal-axis wind turbine (HAWT) blade is investigated using various computer-aided engineering tools. For example, a computer program was developed which can automatically ...

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  • Structural-Response Analysis, Fatigue-Life

    One of the most valuable and lasting improvements that any dentist can contribute to a successful practice is an investment in great dental office office design. Whether remodeling an existing office or creating a brand new facility from scratch, there are several essential elements to focus on in designing an office that will help create a more productive, comfortable, quiet and user-friendly ...

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  • 4pcs Dental Regulator Control Valve for Dental Chair ...

    PC/Tablets & Networking. Cables & Connectors; Computer Components & Parts; Desktops & All-In-Ones; Drives, Storage & Blank Media; Home Networking & Connectivity

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  • Mitsubishi Power, Ltd. | M701J Series

    2021-7-11 · The J Series gas turbines are an integration of the proven G Series and elemental technologies for temperature increase as a result of the Japanese national project for development of 1,700°C class gas turbines. They operate at a turbine inlet temperature of 1,600°C. Developed as a model with a similar design, the M701J Series for 50 Hz power ...

    Get Price
  • Mechanism of Fast Transition of Pressure Pulsations in

    2019-7-12 · In this study, the mechanism behind the rapid time variations of the vaneless space pressure pulsations in a model pump-turbine during runaway was analyzed through three-dimensional (3D) numerical simulations.

    Get Price
  • 3D printing in dentistry | British Dental Journal

    2015-12-11 · The fit of cobalt-chromium three unit fixed dental prostheses fabricated with 4 different techniques: a comparative in vitro study. Dent Mater J 2011; 27 : 356–363. Article Google Scholar

    Get Price
  • Coarsening in Solid Liquid Mixtures-2 (CSLM-2) |

    2013-10-24 · Three-dimensional bearing load share behaviour in the planetary stage of a wind turbine gearbox. ... Effect of arc energy absorber in a wind turbine switch unit. IEEE Transactions On Power Delivery 2013; 28: 549 – 556 ... Two-time-scale coordination control for a battery energy storage system to mitigate wind power fluctuations.

    Get Price
  • Wind energy literature survey no. 30 - Henriksen -

    In traditional structure, wind turbine pitch control system generally consists of two modules, the logic control unit responsible for the control logic and the servo drive unit responsible for the motor driven. In order to adapt to the integration of the system architecture and simplify complex layout...

    Get Price
  • Proceedings of the 2017 7th International Conference

    2021-2-25 · Fibre-reinforced dental composites are proven to have superior mechanical properties in comparison with micro/nano/hybrid filled composites. However, the addition of small quantities of short ...

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  • Dimensional stability of short fibre reinforced flowable ...

    2021-6-28 · Hitachi Review Vol. 68 (2019) No. 2 is “Hitachi Technology 2019.” This issue of Hitachi Review presents topics in a variety of business fields, primarily Hitachi's digital solutions and unique products that underpin it's Social Innovation Business.

    Get Price
  • Hitachi Technology 2019 : 2019 Vol.68 No.2 : Hitachi

    Systems and methods for fabricating three-dimensional objects. The system includes an optical imaging system providing a light source; a photosensitive medium adapted to change states upon exposure to a portion of the light source from the optical imaging system; a control system for controlling movement of the optical imaging system, wherein the optical imaging system moves continuously above ...

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  • Guidelines for Infection Control in Dental Health-Care ...

    Dental Unit Waterlines, Biofilm, and Water Quality. Studies have demonstrated that dental unit waterlines (i.e., narrow-bore plastic tubing that carries water to the high-speed handpiece, air/water syringe, and ultrasonic scaler) can become colonized with microorganisms, including bacteria, fungi, and protozoa (303--309). Protected by a ...

    Get Price
  • Design of Load Frequency Controllers for Interconnected ...

    2013-10-15 · The power system model under study in this paper consists of two control areas connected by a tie line as shown in the Fig.1. Each of the control area composes of two thermal generating units, one having a reheat turbine and the other without reheat turbine along with SMES unit.

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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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  • Optomechatronics | TNO

    2021-7-7 · TNO’s optomechatronics expertise is applied in three markets: TNO has an excellent track record in space-based imaging spectrometers, mechanisms and the associated calibration equipment. Multiple instruments were successfully launched on board satellites and are still in orbit and in operation today. TNO develops modules and equipment for the ...

    Get Price
  • Welcome To Combined Cycle Journal

    2021-6-25 · Geometry-resolved large-eddy simulation of the NREL 5MW wind turbine, which shows velocity isosurfaces at 5.5 m/s after three rotor revolutions. Simulation was performed on the NERSC Cori system with Nalu-Wind, which is an unstructured-grid, low …

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  • Research | Kenny Gruchalla, Ph.D.

    All three-axes spacecraft simulators developed so far allow only ~10-50 degrees of rotation along pitch and roll axes and 360 degrees along the yaw axis. This limits the effectiveness of the experimental validation of spacecraft dynamics. For instance, large angle maneuvers or de-tumbling cannot be fully tested using a standard spacecraft ...

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  • Aerospace technologies available for licensing from

    2021-7-10 · ProX SLS 6100. Production-grade nylon 3D printer delivering best-in-class part quality, fast build times and automated production tools. ProX 800. SLA quality at high throughput to address the broadest range of applications. ProJet MJP 2500/2500 Plus.

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  • The Best Industrial Metal and Plastic 3D Printers I 3D

    2019-10-31 · Additive manufacture (AM) enables the fabrication of highly efficient lattice structures. However, the mathematical efficiency of characterising AM lattice geometry can be poor, potentially restricting the commercial application of AM lattice structures. This research quantifies the effect of the polygon order used to characterise the geometric resolution of lattice strut elements on the ...

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  • Guidelines for Infection Control in Dental Health-Care ...

    Dental Unit Waterlines, Biofilm, and Water Quality. Studies have demonstrated that dental unit waterlines (i.e., narrow-bore plastic tubing that carries water to the high-speed handpiece, air/water syringe, and ultrasonic scaler) can become colonized with microorganisms, including bacteria, fungi, and protozoa (303--309). Protected by a ...

    Get Price
  • 3D Scanning, Imaging, and Printing in Orthodontics ...

    2013-10-15 · The power system model under study in this paper consists of two control areas connected by a tie line as shown in the Fig.1. Each of the control area composes of two thermal generating units, one having a reheat turbine and the other without reheat turbine along with SMES unit.

    Get Price
  • Design of Load Frequency Controllers for Interconnected ...

    2021-7-10 · ProX SLS 6100. Production-grade nylon 3D printer delivering best-in-class part quality, fast build times and automated production tools. ProX 800. SLA quality at high throughput to address the broadest range of applications. ProJet MJP 2500/2500 Plus.

    Get Price
  • The Best Industrial Metal and Plastic 3D Printers I 3D

    2021-7-7 · TNO’s optomechatronics expertise is applied in three markets: TNO has an excellent track record in space-based imaging spectrometers, mechanisms and the associated calibration equipment. Multiple instruments were successfully launched on board satellites and are still in orbit and in operation today. TNO develops modules and equipment for the ...

    Get Price
  • Optomechatronics | TNO

    All three-axes spacecraft simulators developed so far allow only ~10-50 degrees of rotation along pitch and roll axes and 360 degrees along the yaw axis. This limits the effectiveness of the experimental validation of spacecraft dynamics. For instance, large angle maneuvers or de-tumbling cannot be fully tested using a standard spacecraft ...

    Get Price
  • Aerospace technologies available for licensing from

    2004-7-21 · In the three-dimensional shape, the dental insertion element is composed of two part-cylinders cut parallel to their respective cylinder axes, corresponding to the first and second circle-lines 5, 6. In the three-dimensional shape, the joins between the first and second circle-lines 5 , 6 , in the form of the ridges 3 , 4 , correspond, in each ...

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