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  • The influence of molecular geometry on the efficiency of ...

    The focus is on studying the intricate role of the steric effects that influence molecular geometry, and the energy of electronic excited states on the photophysics of TADF. X-ray crystal data Fig. 2 shows the molecular structures obtained from X …

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  • Influence of Nozzle Geometry on the Noise of High-Speed ...

    2012-5-17 · American Institute of Aeronautics and Astronautics 12700 Sunrise Valley Drive, Suite 200 Reston, VA 20191-5807 703.264.7500

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  • Numerical investigation of the influences of mixing ...

    2014-11-17 · In studying the influence of the mixing chamber length on the performance of the steam ejector, the primary, the secondary and the back pressure are fixed at 600 kPa, 15 kPa and 40 kPa, respectively. The mixing chamber length is changed without changing the convergence angle and the outlet diameter of the mixing chamber.

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  • Numerical investigation of geometry parameters for design ...

    2009-4-1 · Converging angle of mixing section: The ejector performance is very sensitive to θ especially near its optimum value, and a slight variation of θ has a great influence on the ejector performance. When the NXP is within its optimum range, the optimum converging angle is in the range of 1.45–4.2° with the primary flow pressure from 4.5 to 6 bar.

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  • The Influence of Shroud and Cavity Geometry on Turbine ...

    2008-6-17 · Imperfections in the turbine annulus geometry, caused by the presence of the shroud and associated cavity, have a significant influence on the aerodynamics of the main passage flow path. In this paper, the datum shroud geometry, representative of steam turbine industrial practice, was systematically varied and numerically tested.

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  • Influence of particle size and blender size on blending ...

    The effect of particle size enlargement and blender geometry down-scaling on the blend uniformity (BU) was evaluated by Discrete Element Method (DEM) to predict the blending performance of a binary granular mixture. Three 10 kg blending experiments differentiated by …

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  • Experimental and numerical investigation of the influence ...

    2012-9-1 · To investigate the influence of the mixer diameter on ejector performance, a series of 12 measurement points was taken. Mixing sections with D MIX = 2 × 10 −3 m, D MIX = 3 × 10 −3 m, and D MIX = 5 × 10 −3 m were examined, each for the case with L MIX = 10 × D MIX, and α DIF = 5 °.

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  • Influence of CO2 concentration on the performance of MgO ...

    2021-1-1 · This paper investigated the influence of different CO 2 concentrations on the microstructural and mechanical development of reactive MgO cement (RMC) concrete. Combination of various analyses revealed the enhancement of hydrated magnesium carbonate (HMC) phases with relatively superior micro-mechanical properties as the CO 2 concentration increased from …

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  • The numerical analysis of the effect of geometrical ...

    2013-9-25 · The working fluid in the model is methane. The density of the methane is obtained using the ideal gas equation. The other properties, such as the specific heat, the thermal conductivity, the viscosity and the molecular weight, are held constant, as listed in Table 1.Standard wall function is used in the near wall treatment, which gives reasonably accurate results for a wall …

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  • Effects of Focus Geometry on the Hard Rock-Cutting ...

    Abrasive waterjets are being increasingly used in civil engineering for rock and concrete cutting, particularly for the demolition or repair of old structures. The energy of an abrasive waterjet is primarily provided by the accelerated abrasive. The momentum transfer during mixing and acceleration determines the abrasive velocity, which affects the cutting performance.

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  • Time and Length Scales of Mixing: The Macro Scale ...

    2021-8-1 · The Double Planetary Mixer (photo) is suitable for high-precision mixing, granulation and vacuum drying all in a single vessel. Powders… A high-performance mixing and pumping skid system This company recently designed a new skid system (photo) capable of mixing and pumping low to moderately viscous products. The…

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  • Analyzing mixing systems using a new generation of ...

    2018-4-23 · The ongoing evolution of tracer mixing models has resulted in a confusing array of software tools that differ in terms of data inputs, model assumptions, and associated analytic products. Here we introduce MixSIAR, an inclusive, rich, and flexible Bayesian tracer (e.g., stable isotope) mixing model framework implemented as an open-source R package.

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  • Concrete Mixing Methods and Concrete Mixers: State of the Art

    2001-4-1 · 2.1.2 Pan Mixers . All pan mixers work on basically the same principle []: a cylindrical pan (fixed or rotating) contains the concrete to be mixed, while one or two sets of blades rotate inside the pan to mix the materials and a blade scrapes the wall of the pan.The shapes of the blades and the axes of rotation vary. Figure 4 shows the different combinations of blade configurations and …

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  • AOYI OCHIENG CFD SIMULATION OF THE

    2017-2-3 · nes, which affect mixing efficiency in a stirred tank. The mixing efficiency can be determined from homo-genization energy, which is the product of the mixing time and the corresponding power dissipated [10]. A remarkable effort has been expended in simulating mixing time and power in flat-bottom tanks stirred using the Rushton turbine [11–14].

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