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  • [PDF] Effect of Double-Nozzle Jet on Mechanical Properties ...

    Earlier investigations have demonstrated that air interlacing improves the mechanical properties of Self-Twist (ST) yarns. In following of previous efforts, this paper discusses improving of mechanical properties of ST yarn by using double-nozzle jet. In the present work, at first, a Murata jet was attached to Repco ST yarn machine which the air pressure and distance of double-nozzle jet from ...

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  • (PDF) Effect of Double-Nozzle Jet on Mechanical Properties ...

    They found that the air pressure was the most important parameter affecting yarn mechanical properties.Instrumentation: As shown in Figure 1, a standard 'Zeng and Yu' [5] by simulating the air flow inside the Murata air jet was attached to Repco ST yarn machine. nozzles concluded that with increasing the air pressure,The double-nozzle air jet ...

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  • Effect of Double-Nozzle Jet on Mechanical Properties of ...

    In following of previous efforts, this paper discusses improving of mechanical properties of ST yarn by using double-nozzle jet. In the present work, at first, a Murata jet was attached to Repco ST yarn machine which the air pressure and distance of double-nozzle jet from twisting rollers were varied.

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  • ELASTIC PROPERTIES OF JET-GROUTED GROUND AND

    2021-5-16 · Jet-grouting is one possible ground improvement technique. The behavior of the soil improved by jet-grouting is still not well understood. In this thesis, the mechanical behavior of the injected soil is modeled in order to determine the different parameters needed for the engineering design of a soil reinforcement based on jet-grouting.

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  • (PDF) Nozzles Classification in a High-Pressure Water Jet ...

    In this paper, a technique for classifying the working condition of a water jet system is presented. The classifier is based on the discrete Fourier transform (DFT) of the electrical power signal.

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  • Numerical and experimental studies on transport properties ...

    2016-12-1 · The venturi ejector can form vacuum fields to transport particles due to venturi effect. The transportation performance of powder ejectors based on single- and double-venturi effect and the influence of nozzle position on the transportation performance were respectively investigated by the experimental method and the numerical simulation based on the CFD-DEM coupling method.

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  • (PDF) Jet-grouting effects on pyroclastic soils

    2015-9-1 · PDF | On Jan 1, 1998, P. Croce and others published Jet-grouting effects on pyroclastic soils | Find, read and cite all the research you need on ResearchGate

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  • Effect of polymer–surfactant interactions on elongational ...

    2006-9-30 · The elongational viscosity measurements for the PEO–SDS system are shown in Fig. 2.For the 5 mM SDS solution, these measurements are similar to the 5 mM PEO–SDBS solution.At SDS concentrations of 10–75 mM, however, the elongational viscosity curves exhibit a sudden increase in elongational viscosity at a critical strain rate, and attainment of a maximum elongational viscosity in …

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  • Spray cooling by solid jet nozzles using alumina/water ...

    2012-12-1 · The effects of the suspensions of Al 2 O 3 nanoparticles on the overall heat transfer performance for spray cooling using a solid jet nozzle were experimentally and theoretically studied at various flow rates and nanoparticle fractions. Based on a thermal probe embedded in the testing plate, the cooling curves, which represented the transient ...

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  • Effect of Filling Pattern on the Tensile and Flexural ...

    2019-1-17 · This experimental study investigates the effect of filling pattern on tensile and flexural strength and modulus of the parts printed via fused deposition modeling (FDM), 3D printer. The main downside of the printed products, with an FDM 3D printer, is the low strength compared to the conventional processes such as injection molding and machining. The issue stems from the low …

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  • A review on nanofiber fabrication with the effect of high ...

    2019-5-28 · relationship between the mechanical properties of fibers and the roller rotational speed. Lu et al. 21 fabricated porous carbon nanofibers with conductivities and various surface areas via centrifugal spinning. The porous carbon nanofib-ers could be used in electric double-layer capacitors. A wheel-like collection device was designed by Theron

    Get Price
  • (PDF) Nozzles Classification in a High-Pressure Water Jet ...

    In this paper, a technique for classifying the working condition of a water jet system is presented. The classifier is based on the discrete Fourier transform (DFT) of the electrical power signal.

    Get Price
  • (PDF) Impact of a microfluidic jet on a pendant droplet

    can have a strong influence on the Worthington jet properties 42. Lastly , we observe that the mixing and diffusion of the impact- ing jet into the droplet is governed by the droplet characteristics.

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  • Multi-objective Optimization of Double-Jet MQL System ...

    2020-8-5 · This paper mainly focuses on determination of optimum minimum quantity lubrication (MQL) parameter settings due to enhance the machinability of Ti–6Al–4V alloy, which is an area of huge concern for industrial production and academic research around the globe. MQL is an eco-friendly cooling method, which can be employed during machining Ti–6Al–4V alloys. In this work, a highly efficient ...

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  • Comparisons of Isothermal and Combusting Jets

    2012-8-20 · isothermal jet lies between 4 and 5 nozzle diameters. The RMS fluctuating velocity profiles at X/D=1, show low levels across the centre of the jet, with peak values occurring in the shear layer (Figure 1). Figure 1. Mean axial and RMS fluctuating velocity profiles for 10mm nozzle at X/D=1,2 and 5 under isothermal conditions

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  • Estimating column diameters in jet grouting processes

    2018-8-11 · 1 Estimating column diameters in jet grouting processes Kimpritis, T.1, Standing, J.R.2 and Thurner, R.3 1 Keller Hellas S.A., formerly Imperial College London 2 Department of Civil and Environmental Engineering, Imperial College London 3 Keller Grundbau GmbH, Technical and Commercial Director Middle East and Turkey Abstract Jet grouting is widely used in geotechnical …

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  • Impact of the mechanical properties of penetrated media on ...

    2021-8-1 · In order to study the impact of the mechanical properties of the penetrated medium, injections were carried out with Airjet and Comfort-in injectors in 6% agarose (type VII) medium (422.43 ± 123.11 nm average pore size and 95.1 ± 2.1 kPa Young’s modulus ) and 15% PAAm medium (2.2 nm average pore size and 95.3 ± 2.3 kPa Young’s modulus ...

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  • Effect of Pouring Conditions and Gating System Design

    2019-4-8 · indicated in Figure 1. For a plunging liquid jet, once the liquid jet impinges on the surface of a quiescent pool, the trapped air pockets are entrained into the bulk liquid where they are broken into smaller air bubbles and carried away with the liquid flow. In the model applied here, the local air entrainment rate is a function of the ...

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  • Effect of back pressure on nozzle inner flow in fuel ...

    The variation 12 in back pressure has influenced cavitation that may reduce the injection flow rate of the 13 injector nozzle [23]. The backpressure from 0.1 to 3 MPa is indicated to be very small ...

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  • Energy distribution modulation by mechanical design for ...

    2017-11-1 · Electrolyte jet processing (EJP) is the amalgamation of electrochemical jet machining (EJM) , , and electrochemical jet deposition (EJD) , , within a unified machine tool.This technique can achieve jetted deposition of material with a cathodic workpiece, and jetted material removal with an anodic workpiece (Fig. 1a).Manipulation of process parameters, polarity and electrolyte chemistry enables ...

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  • Methodology for the Evaluation of Double-Layered ...

    2013-4-8 · The wave number can be tuned by changing the jet velocity V 1 and the excitation frequency f based on the relationship k = (2 π f V 1) R 1 using the V 1 = f λ 1 estimation per the simulation results. The jet velocity V 1 is not sensitive to frequencies once the excitation pressure and the material properties are given. In this numerical ...

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  • Near-Field Acoustical Characterization of Clustered

    2020-8-6 · = peak frequency, Hz 41b = bandwidth of the frequency band, Hz LWb = sound pow'er level in the band centered on frequency b, dB (re I O Me = jet exit Mach number, Ue ae = nozzle mass flow rate, kg/s n = number of nozzles r = length of the radius line from the assumed position of the frequency source to the point on the vehicle r 3 = exit radius of individual nozzles

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  • DIN - Pfaudler

    baffling nozzles DN300 (N4 and N9) contrary to the DIN standard • Jacket • Agitator flange to DIN 28137-2 • Split flanges to DIN 28150 • Gaskets for glass-lined nozzles to DIN 28148 optionally with gasket insert made of AF3000, AF3000m or GR3000 Jacket connections to DIN EN 28151-1, optionally: • In position A1/A2, without agitating ...

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  • Influence of nozzle asymmetry on supersonic jets

    2012-5-17 · 27 January 2016 | The Aeronautical Journal, Vol. 118, No. 1209. Effects of area-ratio on the near-field flow characteristics and deflection of circular inclined coaxial jets. Experimental Thermal and Fluid Science, Vol. 54. Effect of a tab on the aerodynamical development and noise of an underexpanded supersonic jet.

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  • Effect of Nozzle on Leak-Before-Break Analysis Result of ...

    The leak-before-break (LBB) behaviors of a structural component under high and low fatigue loads are an important problem in nuclear power plants, liquid nitrogen gas tankers and chemical plants.

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  • (PDF) Numerical Analysis on Performance of the Middle ...

    2021-7-26 · Furthermore, in order to confirm the effect of middle-pressure jet grouting with mechanical agitation and mixing, a comparative analysis was performed with different jet pressures, the development ...

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  • Estimating column diameters in jet grouting processes

    2018-8-11 · 1 Estimating column diameters in jet grouting processes Kimpritis, T.1, Standing, J.R.2 and Thurner, R.3 1 Keller Hellas S.A., formerly Imperial College London 2 Department of Civil and Environmental Engineering, Imperial College London 3 Keller Grundbau GmbH, Technical and Commercial Director Middle East and Turkey Abstract Jet grouting is widely used in geotechnical …

    Get Price
  • Experimental Study of Underexpanded Supersonic Jet ...

    2012-5-2 · Effect of Rocket Engine Layouts on Jet Flowfield Inside a Launch Pad. ... Effect of Nozzle-Plate Distance on Acoustic Phenomena from Supersonic Impinging Jet. ... Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Vol. 228, No. 14.

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  • Mechanical Characterization of Vesicles and Cells: A Review

    1. Introduction. Vesicles are biological structures enclosed by a membrane made of one or more lipid bilayers. Although biological cells with a diameter of 10 to 30 μm perfectly fit the definition of a vesicle, traditionally the term has been used to describe intracellular and extracellular structures containing cytoplasmic fluids.

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  • Nozzle: Applications, General-Flow Analysis, Velocity ...

    2 天前 · 3. General-Flow Analysis of a Nozzle: Assumptions: 1. The flow of the fluid is assumed to be one dimensional. 2. The change in area and curvature along the axis of the duct are gradual. 3. Thermodynamic and mechanical properties are uniform across planes normal to the axis of a duct. 4. The flow of the fluid is assumed to be steady flow.

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  • Combustion and Flame - Princeton University

    2011-3-9 · the nozzle exits to obtain uniform velocity profile. The flow unifor-mity at the nozzle exit was also confirmed by using a particle im-age velocimetry (PIV) system(TSI, model 610034). To furtherverify the one-dimension approximation in the experiments, counterflow flame experiments with 13 mm i.d. nozzles were also conducted.

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  • Flip-Flop Jet Nozzle

    2012-5-17 · On Switching of a Flip-Flop Jet Nozzle with Double Ports by Single-Port Control Journal of Flow Control, Measurement & Visualization, Vol. 04, No. 04 Numerical Investigations of Pulsed Fuel Injection into Supersonic Crossflow

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  • Effect of Pouring Conditions and Gating System Design

    2019-4-8 · indicated in Figure 1. For a plunging liquid jet, once the liquid jet impinges on the surface of a quiescent pool, the trapped air pockets are entrained into the bulk liquid where they are broken into smaller air bubbles and carried away with the liquid flow. In the model applied here, the local air entrainment rate is a function of the ...

    Get Price
  • Liquid jet nozzles, mixing nozzles, tank mixing systems ...

    In case of liquids with physical properties like water, a mixin g ratio of motive flow to suction flow is 1:3. On account of its velocity and of the dragging jet effect resultin g therefrom, the mixed flow leaving the liquid jet mixing nozzle carries forward so much …

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  • Characteristics of a supersonic elliptic jet

    The Reynolds numbers of the Mach 2 jet based on nozzle exit diameter are 7.12 × 10 5 and 16.6 × 10 5, respectively, for the minimum and maximum NPRs of 4 and 8 in the present investigation. The design Mach number of the elliptic nozzle is 2. After nozzle fabrication, it is essential to ensure whether the design Mach number is achieved.

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  • Numerical Study of the Micro-Jet Formation in Double Flow ...

    2021-8-2 · The purpose of this work is to determine, based on the computational model, whether a mixture of a binary liquid is capable of producing longer, thinner and faster gas-focused micro-jets, compared to the mono-constituent liquids of its components. Mixtures of water with two different alcohols, water + ethanol and water + 2-propanol, are considered. The numerical study of pre-mixed liquids is ...

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  • A review on nanofiber fabrication with the effect of high ...

    2019-5-28 · relationship between the mechanical properties of fibers and the roller rotational speed. Lu et al. 21 fabricated porous carbon nanofibers with conductivities and various surface areas via centrifugal spinning. The porous carbon nanofib-ers could be used in electric double-layer capacitors. A wheel-like collection device was designed by Theron

    Get Price
  • Roxel IM technology, analysis of trial results, future IM ...

    2017-5-19 · • Case properties have a strong influence on the level of confinement and reaction violence for FH, BI, FI aggressions when EM is ignited, and a moderate influence on RM responses for SH, SR, SCJ aggressions [ 28, 37, 49, 50 ] • Al, SSL, KOA, CFRP cases lose mechanical properties very quickly under FH & BI aggressions and commonly

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  • The Next Frontier in Melt Electrospinning: Taming the Jet

    2019-6-11 · the molten jet. The key processing parameters to achieve a highly controlled and reproducible MEW process have been investigated and identified as i) mass flow rate to the nozzle, ii) collector speed and iii) electric field, while the viscosity and charge of the fluid define the properties …

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  • A Review of Laminar Burning Velocity and Flame Speed of ...

    2017-2-13 · properties of a reacting premixed mixture and its reliable data are constantly needed for combustion applications. So far, several techniques for measuring the one-dimensional laminar burning velocity have been used for a wide range of temperatures, pressures *Corresponding author: Oras Khudhair and fuels.

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  • Liquid jet nozzles, mixing nozzles, tank mixing systems ...

    In case of liquids with physical properties like water, a mixin g ratio of motive flow to suction flow is 1:3. On account of its velocity and of the dragging jet effect resultin g therefrom, the mixed flow leaving the liquid jet mixing nozzle carries forward so much …

    Get Price
  • Importance of the nozzle-exit boundary-layer state in ...

    To investigate the effects of the nozzle-exit conditions on jet flow and sound fields, large-eddy simulations of an isothermal Mach 0.9 jet issued from a convergent-straight nozzle are performed at a diameter-based Reynolds number of 1 imes 10^{6} . The simulations feature near-wall adaptive mesh refinement, synthetic turbulence and wall ...

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  • Multi‐jet nozzle electrospinning on textile substrates ...

    2010-11-10 · Increasing knowledge of multi‐jet electrospinning is crucial for developing industrial devices for large‐scale nanofibre production. This paper reports on the effect of a non‐conducting textile substrate placed between a jet‐emitting source (nine‐nozzle arrangement) and collector.

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  • The Effect of Reynolds Number on Jet in Asymmetric Co ...

    2018-10-24 · 3. Results and Discussion. To investigate the effect of initial Re on the jet development, four simulations with different nozzle diameters D j = 0.0012, 0.0015, 0.0018, and 0.0021 m were run with grid 2 based on the grid study results. With the same initial mass flow rate 0.031 kg/s as in the PIV measurement by Larsson et al. [], the jet initial velocities are U j = 27.70, 17.73, 12.31, and 9 ...

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  • Estimating column diameters in jet grouting processes

    2018-8-11 · 1 Estimating column diameters in jet grouting processes Kimpritis, T.1, Standing, J.R.2 and Thurner, R.3 1 Keller Hellas S.A., formerly Imperial College London 2 Department of Civil and Environmental Engineering, Imperial College London 3 Keller Grundbau GmbH, Technical and Commercial Director Middle East and Turkey Abstract Jet grouting is widely used in geotechnical …

    Get Price
  • Continuous twisted nanofiber yarns fabricated by double ...

    In order to fabricate continuously twisted nanofiber yarns, double conjugate electrospinning had been developed using two pairs of oppositely charged electrospinning nozzles. The principle and process of this novel yarn spinning method were analyzed, and the effect of applied voltage, nozzle distance between positive and negative, solution flow rate and funnel rotating speed on the diameters ...

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  • “The Even-Lavie valve as a source for high intensity ...

    2015-12-29 · The mechanical motion of the plunger due to the current pulse in the coil is far from trivial. There are several factors influencing the motion: 1. The masses of the plunger and the return spring. 2. The shape of the current pulse. 3. The local saturation of the magnetic properties of the plunger and plug. 4.

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  • Analysis of Performance of Ljungstrom Air Preheater

    2014-2-7 · etc.) of uniform properties across the cross-section is produced. This is used for aerodynamically testing the models under the given standard conditions. All Wind Tunnels are generally comprised of the driving unit, a settling chamber, an accelerating duct (contraction or nozzle), the test section and the diffuser.

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  • Nozzle: Applications, General-Flow Analysis, Velocity ...

    2 天前 · 3. General-Flow Analysis of a Nozzle: Assumptions: 1. The flow of the fluid is assumed to be one dimensional. 2. The change in area and curvature along the axis of the duct are gradual. 3. Thermodynamic and mechanical properties are uniform across planes normal to the axis of a duct. 4. The flow of the fluid is assumed to be steady flow.

    Get Price
  • Mechanical Engineering Projects-Free Download Mechanical ...

    2020-3-22 · Free download Project on PARAMETRIC INVESTIGATION OF ABRASIVE JET MACHINE Mechanical Engineering Project. Abrasive Jet Machining (AJM) or Micro Blast Machining is a non-traditional machining process, wherein material removal is effected by the erosive action of a high velocity jet of a gas, carrying fine-grained abrasive particles, impacting ...

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  • M. Monno, C. Ravasio - Politecnico di Milano, Italy

    2021-8-6 · The effect of cutting head vibrations on the surfaces generated by waterjet cutting M. Monno, C. Ravasio - Politecnico di Milano, Italy ... aspects of the interaction between the jet and the mechanical properties of the material ... nozzle during the cutting process cause the striation formation.

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  • 1. Introduction - Moog Inc.

    2017-5-22 · Fig 2. Nozzle - Flapper Valve Similarly, Foxboro developed the nozzle-flapper valve which uses the cylindrical curtain orifice area formed by a flat plate moving towards a sharp edged orifice. Fig 2. Siemens of Germany developed a dual-input valve that accepted mechanical inputs through a

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  • Multi‐jet nozzle electrospinning on textile substrates ...

    2010-11-10 · Increasing knowledge of multi‐jet electrospinning is crucial for developing industrial devices for large‐scale nanofibre production. This paper reports on the effect of a non‐conducting textile substrate placed between a jet‐emitting source (nine‐nozzle arrangement) and collector.

    Get Price
  • Effect of physical parameters and temperature on the piezo ...

    2020-11-2 · Vice versa, a short tail and an optimum viscoelastic behavior of the fluid will lead to that the tail is instantly pulled into the drop after ejection and jet breakup at the nozzle 33.

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  • IOP Conference Series: Materials Science and Engineering ...

    2021-4-7 · With an extended gratification, we happily welcome you to the proceedings of 2021 3 rd International Conference on Trends in Material Science and Inventive Materials (ICTMIM 2020) at Coimbatore, India. The main objective and feature of the conference is to bring together academicians, researchers and industrialist to share and exchange their research experiences and results in different ...

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  • Lagrangian diffusion properties of a free shear turbulent jet

    1.1. Taylor's theory of turbulent diffusion. The importance of the Lagrangian approach in modelling turbulent dispersion was first evidenced by the early work of Taylor (Reference Taylor 1922).Taylor's theory connects the mean square displacement sigma ^2( au ) of particles spreading from a point source in stationary homogeneous isotropic turbulence to the Lagrangian two-point correlation ...

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  • Retrospective investigation on emergence and

    2021-7-7 · development of materials, enhancement of material properties and study of effect of various factors, additives, orientation, machining parameters, etc. on the behavior of additively manufactured material. Keywords: Additive manufacturing, 3D printing, ABS, PLA, FDM, Mechanical property . 1 Introduction . AM is basically a process in which ...

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  • Effect of solvent and molecular weight in nanofibers ...

    2020-12-2 · properties such as conductivity are likely irrelevant. There is a need to investigate the effect of fundamental properties of polymer solutions on SBS processing of nanofibers. The objective of the present study was to investigate the polymer solution properties using three common PLA solvents (chloroform, dichloromethane, dichloroethane) and

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  • Diesel Fuel Injector Nozzles

    2020-9-3 · The impact of nozzle hole inlet rounding on nozzle performance is illustrated in Figure 16 where the effect of different nozzle hole inlet chamfer radius (r c) is simulated [2208]. In this example, the baseline case with no rounding of the nozzle inlet shows a …

    Get Price
  • Advanced Materials Technologies: Vol 4, No 2

    2019-2-8 · In article number 1800332, Organic vapor-jet printing (OVJP) with reduced heat transfer is described by Seunghyup Yoo and co-workers.The method realizes direct, ink-free formation of organic thin-film patterns on plastic substrates. With a semi …

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  • DIN - Pfaudler

    baffling nozzles DN300 (N4 and N9) contrary to the DIN standard • Jacket • Agitator flange to DIN 28137-2 • Split flanges to DIN 28150 • Gaskets for glass-lined nozzles to DIN 28148 optionally with gasket insert made of AF3000, AF3000m or GR3000 Jacket connections to DIN EN 28151-1, optionally: • In position A1/A2, without agitating ...

    Get Price
  • ANALYTICAL MODELLING OF DRY-JET WET SPINNING

    2017-7-31 · discussed the effects of extrusion velocity, draw ratio, spinneret aspect ratio, and bath tem-perature on mechanical properties and orientation of cellulose filaments from Ionic iquid l solution using dry-jet wet spinning methodQian . et al. [13] studied the mechanism and characteristics of dry-jet wet spinning of acrylic fibers. Tan . et al.

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  • A Review of Laminar Burning Velocity and Flame Speed of ...

    2017-2-13 · properties of a reacting premixed mixture and its reliable data are constantly needed for combustion applications. So far, several techniques for measuring the one-dimensional laminar burning velocity have been used for a wide range of temperatures, pressures *Corresponding author: Oras Khudhair and fuels.

    Get Price
  • Influence of lengths of millimeter-scale single-walled ...

    2013-12-27 · The electrical conductivity and mechanical strength of carbon nanotube (CNT) buckypaper comprised of millimeter-scale long single-walled CNT (SWCNT) was markedly improved by the use of longer SWCNTs. A series of buckypapers, fabricated from SWCNT forests of varying heights (350, 700, 1,500 μm), showed that both the electrical conductivity (19 to 45 S/cm) and tensile strength (27 to 52 …

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  • Surface Review and Letters

    PEO coating increased the tribological and mechanical properties of the aluminum alloy. The effect of frequency on the properties of PEO coatings was studied. AFM observation showed that the micropores number increased with the increasing frequency. XRD results showed that the content of α-Al 2 O 3 ranged with the frequency increase.

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  • Bioink properties before, during and after 3D bioprinting ...

    2016-9-23 · The bioink properties before, during and after gelation are essential for its printability, comprising such features as achievable structural resolution, shape fidelity and cell survival. However, it is the final properties of the matured bioprinted tissue construct that are crucial for the end application.

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  • (PDF) Fundamentals of Fluids Mechanics, 7th Edition ...

    Download Free PDF. Fundamentals of Fluids Mechanics, 7th Edition. 796 Pages. Fundamentals of Fluids Mechanics, 7th Edition. Jason Tsoi. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 9 Full PDFs related to this paper. READ PAPER.

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  • Effects of Dispensing Pressure and Nozzle Diameter on Cell ...

    2008-2-6 · However, the effects of these biomanufacturing processes on cells have not been fully studied. This paper examines the effect of solid freeform fabrication–based direct cell writing process, focusing on dispensing pressure and nozzle size, on the viability and functional behavior of HepG2 cells encapsulated within alginate.

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  • Diesel Fuel Injector Nozzles

    2020-9-3 · The impact of nozzle hole inlet rounding on nozzle performance is illustrated in Figure 16 where the effect of different nozzle hole inlet chamfer radius (r c) is simulated [2208]. In this example, the baseline case with no rounding of the nozzle inlet shows a …

    Get Price
  • NUMERICAL SIMULATIONS OF MICRO JETS PRODUCED

    2020-6-21 · Key words: Multiphase Flow, Micro Jet, Double Flow Focusing Nozzle Abstract. Stable and reliable micro jets are important for many applications. Double flow focused micro jets are a novelty with an important advantage of significantly reduced sample consumption. Numerical simulations of double flow focused micro jets are a highly complex task.

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  • Effects of duplex jets high-pressure coolant on machining ...

    2018-2-1 · As guide for future research, the thermo-fluid aspects of single- and duplex-jet(s) coolant flow over the rake or/and flank surfaces of heated tool are worth pursuing for an improved understanding of the cooling effect as the heat transfer depends on various issues like: impinging fluid jet properties, geometries of the jet, material properties ...

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  • Multi-objective Optimization of Double-Jet MQL System ...

    2020-8-5 · This paper mainly focuses on determination of optimum minimum quantity lubrication (MQL) parameter settings due to enhance the machinability of Ti–6Al–4V alloy, which is an area of huge concern for industrial production and academic research around the globe. MQL is an eco-friendly cooling method, which can be employed during machining Ti–6Al–4V alloys. In this work, a highly efficient ...

    Get Price
  • The diameter of single, double and triple uid jet grouting ...

    the jet at any distance from the nozzle is proposed, which is a relevant step forward if compared with that at the nozzle or at the pump previously proposed, as it takes into account both the system

    Get Price
  • (PDF) Impact of a microfluidic jet on a pendant droplet

    can have a strong influence on the Worthington jet properties 42. Lastly , we observe that the mixing and diffusion of the impact- ing jet into the droplet is governed by the droplet characteristics.

    Get Price
  • (PDF) Jet-grouting effects on pyroclastic soils

    2015-9-1 · PDF | On Jan 1, 1998, P. Croce and others published Jet-grouting effects on pyroclastic soils | Find, read and cite all the research you need on ResearchGate

    Get Price
  • A review on nanofiber fabrication with the effect of high ...

    2019-5-28 · relationship between the mechanical properties of fibers and the roller rotational speed. Lu et al. 21 fabricated porous carbon nanofibers with conductivities and various surface areas via centrifugal spinning. The porous carbon nanofib-ers could be used in electric double-layer capacitors. A wheel-like collection device was designed by Theron

    Get Price
  • Spray cooling by solid jet nozzles using alumina/water ...

    2012-12-1 · The effects of the suspensions of Al 2 O 3 nanoparticles on the overall heat transfer performance for spray cooling using a solid jet nozzle were experimentally and theoretically studied at various flow rates and nanoparticle fractions. Based on a thermal probe embedded in the testing plate, the cooling curves, which represented the transient ...

    Get Price
  • Energy distribution modulation by mechanical design for ...

    2017-11-1 · Electrolyte jet processing (EJP) is the amalgamation of electrochemical jet machining (EJM) , , and electrochemical jet deposition (EJD) , , within a unified machine tool.This technique can achieve jetted deposition of material with a cathodic workpiece, and jetted material removal with an anodic workpiece (Fig. 1a).Manipulation of process parameters, polarity and electrolyte chemistry enables ...

    Get Price
  • Effect of polymer–surfactant interactions on elongational ...

    2006-9-30 · The elongational viscosity measurements for the PEO–SDS system are shown in Fig. 2.For the 5 mM SDS solution, these measurements are similar to the 5 mM PEO–SDBS solution.At SDS concentrations of 10–75 mM, however, the elongational viscosity curves exhibit a sudden increase in elongational viscosity at a critical strain rate, and attainment of a maximum elongational viscosity in …

    Get Price