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  • Three Dimensional Measurements of Instantaneous

    2008-11-24 · Three dimensional instantaneous velocity data were taken in a turbulent corner flow with smooth walls under a zero pressure gradient. Experiments were carried out in air with a free stream velocity of 13 m/s and an axial Reynolds number of about 10,000,000.

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  • Efficient Lifetime Prediction of High Pressure Turbine ...

    2017-8-17 · To efficiently calculate the lifetime consumption of turbine components with sufficient accuracy under operational conditions, we developed a hybrid approach, which is based on the following three steps: First, the possible operation space is analyzed and reduced to define a manageable Design-of-Experiments (DoE) space.

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  • Dental Chair Package, ZC-S400 | JOINCHAMP

    2021-7-10 · Equipped with 9 memory positions, the dental unit can be set by three dentists A, B and C. Every dentist can set three commonly-used chair positions Spitting position: During the treatment, when the patient needs to spit saliva or dirt, just press the 'spitting' button, the dental chair will switch from the treatment position to the spit position, which is very convenient.

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  • CALCULATION OF FINNED TUBE PRESSURE DROP AND

    2017-12-28 · requires a three-dimensional flow model. As a first step in the development of a 3D FIV model, the flow portion of the problem is addressed in isolation. The goal is to determine how well a reasonably-sized computational fluid dynamics (CFD) model could predict the flow versus pressure relationship for a representative finned tube bundle.

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  • Dental Drill - an overview | ScienceDirect Topics

    They are normally made of stainless steel, diamond grit or particles, and tungsten carbide and fitted to a dental drill incorporating an air turbine. The dental bur was developed <300 years ago [8] and still widely used. The dental bur [4,8,9] has three parts: the head, the neck, and the shank. The head contains the blades, which produce cutting action by rotary motion.

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  • Predicting Transition in Turbomachinery—Part I: A

    2004-3-1 · Here we report on an effort to include an empirically based transition modeling capability in a Reynolds Averaged Navier-Stokes solver. Well known empirical models for both attached- and separated-flow transition were tested against cascade data and found unsuitable for use in turbomachinery design. Consequently, a program was launched to develop ...

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  • Performance evaluation of low-pressure turbine, turbo ...

    2019-1-1 · In the current paper, three exhaust waste heat recovery methods that are suitable for mobile engine application, viz., turbo compound, low-pressure turbine and air-Brayton cycle are studied. In order to provide an equivalent comparison basis, the engine …

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  • Three-dimensional coverage path planning via

    2015-11-2 · This paper presents a new algorithm for three-dimensional coverage path planning for autonomous structural inspection operations using aerial robots. The proposed approach is capable of computing short inspection paths via an alternating two-step optimization algorithm according to which at every iteration it attempts to find a new and improved set of viewpoints that together provide full ...

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  • Regenair - gastmfg.com

    2020-5-18 · • Line voltage @ 60 Hz 230V or 460V for three-phase units. 115V or 230V for single-phase units. • Line voltage @ 50Hz 220V for three-phase or single-phase units. • Units in a temperature stable condition. • Delivery measurements made with output port throttled. • Suction measurements made with input port throttled.

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  • IEC 61400-3 : Wind turbines – Part 3: Design

    This standard should be used together with the appropriate IEC and ISO standards mentioned in Clause 2. In particular, this standard is fully consistent with the requirements of IEC 61400- 1. The safety level of the offshore wind turbine designed according to this standard shall be at or exceed the level inherent in …

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  • Dental Drill - an overview | ScienceDirect Topics

    Dental burs have revolutionized the dentistry field and are used for cutting hard tissues such as bone or tooth [1,4,6–9]. They are normally made of stainless steel, diamond grit or particles, and tungsten carbide and fitted to a dental drill incorporating an air turbine. The dental bur was developed <300 years ago [8] and still widely used.

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  • Three‐dimensional tracking of a wide‐ranging marine ...

    Comparison shows that for steady loading on the LP blade, 2D, single blade row Euler solvers are sufficient to achieve engineering accuracies. For the 1 st harmonic unsteady loading, this level of modeling is adequate in the mid and lower half of the blade, but in the outer diameter region, three-dimensional effects require 3D modeling. The ...

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  • Forcing Function Measurements and Predictions of a ...

    Mah J, Hatcher D (2004) Three-dimensional craniofacial imaging. Am J Orthod Dentofac Orthop 126:308. Kunihiko S, Kazuo Y, Kan U (2002) Development of dentomaxillofacial cone beam X-ray CT system model CB MercuRay. Medix 37:40. Palomo JM, Kau CH, Bahl Palomo L, et al. (2006) Three-dimensional cone beam computerized tomography in dentistry.

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  • Dental Cone Beam CT - Radiologyinfo.org

    y Proceedings of ASME Turbo Expo 2003 Power for Land, Sea, and Air June 16-19, 2003, Atlanta, Georgia USA GT2003-38933 MICRO-SCALE RADIAL-FLOW COMPRESSOR IMPELLER MADE OF SILICON NITRIDE

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  • Three-Dimensional Reconstruction of Cone Beam

    2020-5-18 · 3. Elbows create additional friction which causes pressure loss and back pressure. Plumbing at least one pipe size larger than the blower pipe ports minimizes the friction loss they create. 4. The pressure/vacuum relief valve should be installed in a “T” which is at least one pipe size larger than that of the exhaust of the blower.

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  • MICRO-SCALE RADIAL-FLOW COMPRESSOR IMPELLER

    2019-4-1 · Three-dimensional printing (3DP) The 3DP method was first devised by Sachs et al. at the Massachusetts Institute of Technology (MIT), who filed a patent for it in 1989 [ 165 ]. Although 3DP can be considered an indirect ceramic inkjet printing process, its distinctive feature is the use of powder beds, which is why 3DP is classified as a powder ...

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  • Regenair - gastmfg.com

    IEC 61400-3, 1st Edition, February 2009 - Wind turbines – Part 3: Design requirements for offshore wind turbines This part of IEC 61400 specifies additional requirements for assessment of the external conditions at an offshore wind turbine site and it specifies essential design requirements to ensure the engineering integrity of offshore wind turbines.

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  • 3D printing of ceramics: A review - ScienceDirect

    The air is then expanded from high to low pressure through a turbine. The expansion process through the turbine extracts energy from the air, while the compression process requires energy input. As the air moves through the engine, the turbine continuously provides energy sufficient to drive the compressor.

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  • China Best Price Dentl E-Generator Integrated LED

    4.Unique electric generator, just a little air can generate sufficient power. 5. 135°C Autoclavable. 6. For the LED bulb, continuous use of up to ten thousand hours, don't need to change the pipeline, easy to use; The world dental chair two holes, four holes. 7.Warranty:one year for handle; three months for cartridge

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  • IEC 61400-3 : Wind turbines – Part 3: Design

    IEC 61400-3, 1st Edition, February 2009 - Wind turbines – Part 3: Design requirements for offshore wind turbines This part of IEC 61400 specifies additional requirements for assessment of the external conditions at an offshore wind turbine site and it specifies essential design requirements to ensure the engineering integrity of offshore wind turbines.

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  • Dental Chair Package, ZC-S300 | JOINCHAMP

    2020-11-12 · It integrates dental chair control, blowing air, water spray from the handpiece, flushing of the cuspidor and gargling water, making it convenient for dentists. Multifunctional doctor table 1. Equipped with 3 memory positions, dentists can set three commonly-used …

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  • The Internal Structure of the Tip Leakage Vortex

    These vortices do not have sufficient time to merge into a single compact structure within the blade passage. ... Proximity of the TLV to the pressure side of the neighboring blade also affects entrainment of flow into the incoming tip region. ... Investigation of Three-Dimensional Unsteady Flows in a Two-Stage Shrouded Axial Turbine Using ...

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  • A Study of Existing Multistage Transonic Axial

    2014-2-28 · Such a multistage turbomachinery was used to redesign the existing three stage transonic compressor for improved aerodynamic performance in terms of SM limit. The redesign activity of compressor configuration was carried out as surge margin obtained with hardware testing of existing machinery was not sufficient to meet the desired design goals.

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  • Three-dimensional coverage path planning via

    2015-11-2 · This paper presents a new algorithm for three-dimensional coverage path planning for autonomous structural inspection operations using aerial robots. The proposed approach is capable of computing short inspection paths via an alternating two-step optimization algorithm according to which at every iteration it attempts to find a new and improved set of viewpoints that together provide full ...

    Get Price
  • Fujun WANG - ResearchGate

    Fujun Wang. The objective of this paper is to reveal the attenuation characteristics of a shock wave after optical breakdown in water, with laser pulses of 10-ns duration. A high time-resolved ...

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  • Performance of a Micro-scale Radial-Flow Compressor ...

    2003-10-20 · Bearings were a major issue. Air journal and thrust bearings were employed in the 4 mm diameter rotors of the 10 Watt micro gas turbine generator developed at the MIT Gas Turbine Laboratory (Epstein, et al., 2000). They were also used in the 10 mm rotors of the 100 Watt engine designed by IHI Co., Ltd, and Tohoku University (Isomura, et al., 2002).

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  • Turbine Engine | Article about Turbine Engine by The

    The air is then expanded from high to low pressure through a turbine. The expansion process through the turbine extracts energy from the air, while the compression process requires energy input. As the air moves through the engine, the turbine continuously provides energy sufficient to drive the compressor.

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  • Eckhard Bick - PDF Free Download - DOCHERO.TIPS

    A three year research grant (1999-2001) from Statens Humanistiske Forskningsråd, at Odense University, for a project involving Portuguese, English and Danish CG semantics, is hopefully going to change that. 6 Most annotation today still means tagging with word based PoS tags, which are easy to handle with string searching tools, but lack ...

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  • US5121329A - Apparatus and method for creating

    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 controlled rate.

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  • Metal casting processes - IIT Guwahati

    2016-2-29 · three piece moulding. Pattern: It is the replica of the final object to be made. The mould cavity is made with the help of pattern. Parting line: This is the dividing line between the two moulding flasks that makes up the mould. Moulding sand: Sand, which binds strongly without losing its permeability to air or gases. It is a mixture of

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  • A Reduced-Order Integrated Design Synthesis for the

    McGee, OG, III, & Fang, C. 'A Reduced-Order Integrated Design Synthesis for the Three-Dimensional Tailored Vibration Response and Flutter Control of High-Bypass Shroudless Fans.' Proceedings of the ASME Turbo Expo 2008: Power for Land, Sea, and Air. Volume 5: Structures and Dynamics, Parts A and B. Berlin, Germany. June 9–13, 2008. pp. 627 ...

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  • Mobile dental unit - Siemens Aktiengesellschaft

    A mobile dental unit having a housing of a tabletop height and having a width which is less than the height, the housing on a narrow side being provided with a plurality of side-by-side storage receptacles for dental handpieces, each of the dental handpieces having the supply hose extending through the receptacle to a source with take up devices for each of the supply hoses characterized by ...

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  • hexagonal-z three-dimensional geometry: Topics by

    2018-6-1 · Analysis of the three dimensional flow in a turbine scroll. NASA Technical Reports Server (NTRS) Hamed, A.; Baskharone, E. 1979-01-01. The present analysis describes the three-dimensional compressible inviscid flow in the scroll and the vaneless nozzle of a radial inflow turbine. The solution to this flow field, which is further complicated by ...

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  • Marine Fuel Filter Water Separator – Racor Turbine

    2014-2-28 · Such a multistage turbomachinery was used to redesign the existing three stage transonic compressor for improved aerodynamic performance in terms of SM limit. The redesign activity of compressor configuration was carried out as surge margin obtained with hardware testing of existing machinery was not sufficient to meet the desired design goals.

    Get Price
  • A Study of Existing Multistage Transonic Axial

    2010-7-15 · R-R pulling out stops to mature Trent XWB. by Charles Alcock. - July 15, 2010, 2:30 AM. Four years after the surprise launch of the Airbus A350XWB airliner, engine maker Rolls-Royce is …

    Get Price
  • CALCULATION OF FINNED TUBE PRESSURE DROP AND

    2017-12-28 · requires a three-dimensional flow model. As a first step in the development of a 3D FIV model, the flow portion of the problem is addressed in isolation. The goal is to determine how well a reasonably-sized computational fluid dynamics (CFD) model could predict the flow versus pressure relationship for a representative finned tube bundle.

    Get Price
  • US5121329A - Apparatus and method for creating

    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 controlled rate.

    Get Price
  • A Reduced-Order Integrated Design Synthesis for the

    McGee, OG, III, & Fang, C. 'A Reduced-Order Integrated Design Synthesis for the Three-Dimensional Tailored Vibration Response and Flutter Control of High-Bypass Shroudless Fans.' Proceedings of the ASME Turbo Expo 2008: Power for Land, Sea, and Air. Volume 5: Structures and Dynamics, Parts A and B. Berlin, Germany. June 9–13, 2008. pp. 627 ...

    Get Price
  • Survey of Numerical Methods for Trajectory

    2012-5-23 · 3-Dimensional lunar ascent reference trajectory optimization and analyses via Gauss Pseudospectral Method. Obstacle avoidance trajectory optimization of hypersonic vehicle. A fast, robust numerical method for solving optimal control problems. Iterative Learning Control for Multiple Point-to-Point Tracking Application.

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  • Effect of Agitator’s Types on the Hydrodynamic Flow

    2020-5-1 · The aim of this paper is to study the effect of agitator’s types on the turbulent flows in stirred tanks without and with baffles. The hydrodynamics behavior induced by four different agitator’s types: a Rushton turbine (RT), a circular blade turbine (CBT), a diverging triangular blade turbine (DTBT) and converging triangular blade turbine (CTBT) are numerically predicted by solving the ...

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  • US20140117575A1 - Three-dimensional printer with

    US20140117575A1 US14/065,516 US201314065516A US2014117575A1 US 20140117575 A1 US20140117575 A1 US 20140117575A1 US 201314065516 A US201314065516 A US 201314065516A US 2014117575 A1 US2014117575 A1 US 2014117575A1 Authority US United States Prior art keywords dimensional printer contact force build sensors separate Prior art date 2012-10-29 Legal status (The …

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  • Toward Small-Scale Wind Energy Harvesting: Design ...

    The concept of harvesting ambient energy as an alternative power supply for electronic systems like remote sensors to avoid replacement of depleted batteries has been enthusiastically investigated over the past few years. Wind energy is a potential power source which is ubiquitous in both indoor and outdoor environments. The increasing research interests have resulted in numerous techniques on ...

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  • Interaction between deglutition, tongue posture, and ...

    2016-2-24 · The cause of malocclusion is widely accepted to be multifactorial and includes genetic factors as well as habits, dietary preferences, habitual oral or tongue posture, and swallowing characteristics. 1–4 While most of the theories accept genetics as the main or underlying cause, the importance of local or environmental factors, such as oral posture and oral soft tissue characteristics, …

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  • Validation and Calibration of Modern CFD RANS

    2009-8-3 · The compressor was designed and rig tested by Honeywell in the early ‘00s. Detailed measurements of total pressure and total temperature were made at the compressor inlet, exit, and between the stages, including an X-Y survey at the axial stage exit, with sufficient resolution to provide a good estimate of the performance of each stage of ...

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  • R-R pulling out stops to mature Trent XWB | Air

    2010-7-15 · R-R pulling out stops to mature Trent XWB. by Charles Alcock. - July 15, 2010, 2:30 AM. Four years after the surprise launch of the Airbus A350XWB airliner, engine maker Rolls-Royce is …

    Get Price