Vietnam PDF The effect of double-nozzle jet on the mechanical properties of Large favorably

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  • (PDF) Effect of the fluidic injection on the flow of a ...

    The paper describes a study concerning the sonic injection of a gaseous jet through a transverse slot nozzle in a wall into an external flow which is uniform outside of a turbulent boundary layer.

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  • Effects of single- and dual-blockage disks on swirling ...

    To combine the effects of the swirling double-concentric jets and bluff body, Huang and Tsai proposed a method of using a large separation between the central jet and annular flow (i.e., a circular disk with the blockage ratio of 0.563) for the swirling double-concentric jets. They reported that at the large blockage ratio of 0.563, complex ...

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  • Influence of the geometry of the nozzle on the ...

    Request PDF | Influence of the geometry of the nozzle on the characteristics of an exhaust jet | Two solutions for the parameters of a turbulent exhaust jet of a dual-duct engine — the ...

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  • Turbulent Flow and Particle Motion in Continuous Slab ...

    nozzle ports, showing instantaneous jet angles of ~42o (left) and ~35o (right). The dye flows along the jet and hits the narrow face 0.7 seconds later as shown in Fig. 4(b). The dye then splits into two parts with the flow to move into the lower and upper roll zones, as can be seen in plots (c) and (d). The shape of the jets, the lower

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  • Turbulent Flow and Particle Motion in Continuous Slab ...

    nozzle ports, showing instantaneous jet angles of ~42. o (left) and ~35. o (right). The dye flows along the jet and hits the narrow face 0.7 seconds later as shown in Fig. 4(b). The dye then splits into two parts with the flow to move into the lower and upper roll zones, as can be seen in plots (c) and (d). The shape of the jets, the lower

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  • Effect of Pouring Conditions and Gating System Design on ...

    Plots showing the effect of nozzle extension and nozzle diameter on the velocity field and relative air entrainment for the case with no gating system with nozzle diameters of 25.4 and 63.5 mm and a fill time of ( t_{ ext{fill}} = 25.4 ) s (( Q_{ ext{s}} = 2 imes 10^{ - 3} ) m 3 s −1): (a) the velocity fields at ( t = 8 ) s, (b ...

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  • (PDF) The Effect of Tip Clearance Geometry on The Leakage ...

    PDF | On Jan 1, 2010, Mohamed El-Ghandour published The Effect of Tip Clearance Geometry on The Leakage Flow in Axial Turbine Cascades | Find, read and cite all the research you need on ResearchGate

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  • (PDF) The propagation of N waves through turbulence : an ...

    An experimental and theoretical study of the propagation of N waves through a turbulent medium is performed. The experiment is a model experiment that simulates the propagation of sonic booms ...

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  • The experimental/numerical investigation of variations in ...

    Hot-rolled strips are cooled on the run-out table to achieve the customer-required mechanical properties. Cooling reduces the oxidation, which can assist the coiling operation. The ability to obtain a range of mechanical properties from a single steel grade reduces the use of alloying elements (elements added to a metal or an alloy which are incorporated in the metallic structure and change in ...

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  • Theses and Dissertations Available from ProQuest

    Dissertations & Theses from 2019. Krishnan, Ankita (2019) Understanding Autism Spectrum Disorder Through a Cultural Lens: Perspectives, Stigma, and Cultural Values among Asians . Suzuki, Takakuni (2019) Quantifying the Relations among Neurophysiological Responses, Dimensional Psychopathology, and Personality Traits . Dissertations & Theses from 2018. Abdel-Salam, Ahmed Nabil (2018) Corporate ...

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  • Effects of the Overall Length and OD on Opposing-pulse-jet ...

    Effect of Filter Length (1) On the Evolution of Static Pressure. Shown in Fig. 2 is the evolution of static pressure contour and flow streamline when the opposing-pulse-jet cleaning was operated with the delay time Δt = +0.025 s. The filter cartridges under the study have the overall length L = 660, 1350, 2000 mm, and outer diameter OD = 320 mm. At the start of the primary jet, the flow ...

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  • Recent developments in microfluidic synthesis of ...

    In the jet nozzle jetting method, the difficulty in tuning the jet dispensing time often leads to the formation of miniscule satellite vesicles. On the contrary, the DSSF approach is not only capable of forming cell-sized liposomes with high size controllability in a simple equipment setup using the size-filtration effect but also allows the ...

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  • Numerical investigation of plasma-controlled turbulent ...

    In order to better quantify the effect of the plasma control on the mixing properties of the jet, probability density functions (PDFs) of the passive scalar obtained for each case at various streamwise sections are presented in Figs. 12 and 13 at the centreline and lipline of the jet. As a reminder, 0 and 1, correspond to ambient and jet fluid ...

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

    International Conference on Materials Science and Manufacturing Technology (ICMSMT 2021) 8 th -9 th April 2021, Coimbatore, India. Accepted papers received: 22 June 2021. Published online: 23 July 2021. Open all abstracts , in this issue.

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

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

    PDF. , Preface. 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 ...

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  • Preparation of Flat and Smooth Copper Surface by Jet ...

    The electrolyte is ejected to the workpiece surface through the nozzle at a certain flow rate and the workpiece is dissolved by electrochemical reactions with a relatively high efficiency regardless of the hardness of the workpiece. 19 In addition, Jet-ECM is a stress-free machining method which would not lead to mechanical residual stress. 20 ...

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  • Stacking and Spreading Interaction in N-Heteroaromatic ...

    π−π interactions in heteroaromatic systems are ubiquitous in biological systems. In the present study, stabilization energies of stacked and hydrogen-bonded dimers of N-heteroaromatic systems (pyridine, pyrazine, sym-triazine, and sym-tetrazine) have been computed using a benchmark quality coupled cluster through the perturbative triples (CCSD(T)) method at the estimated complete basis set ...

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

    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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  • ME6604 GAS DYNAMICS AND JET PROPULSION NOTES

    ME6604 GAS DYNAMICS AND JET PROPULSION 2.A gas (γ=1.3 and R = 0.46 KJ Kg K) at a pressure of 70 Kpa and temperature of 295 K enters a combustion chamber at a velocity of 75 m sec. The heat supplied in a combustion chamber is 1250 KJ Kg .Determine the Mach number, pressure and temperature of gas at exit.

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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 …

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  • Diesel Fuel Injector Nozzles

    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 …

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  • Recent developments in microfluidic synthesis of ...

    In the jet nozzle jetting method, the difficulty in tuning the jet dispensing time often leads to the formation of miniscule satellite vesicles. On the contrary, the DSSF approach is not only capable of forming cell-sized liposomes with high size controllability in a simple equipment setup using the size-filtration effect but also allows the ...

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

    PDF. , Preface. 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 ...

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  • A review of micropumps - IOPscience

    A micropump with 4 mm long nozzles with small and large diameters of 230 µm and 600 µm, respectively, pumps water with Q max = 4.4 ml min −1 and Δp max = 20.6 kPa at f = 110 Hz and V = 20 V. An otherwise-identical micropump with 3 mm long nozzles with small and large diameters of 530 µm and 1.1 mm, respectively, pumps water with Q max ...

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  • Stacking and Spreading Interaction in N-Heteroaromatic ...

    π−π interactions in heteroaromatic systems are ubiquitous in biological systems. In the present study, stabilization energies of stacked and hydrogen-bonded dimers of N-heteroaromatic systems (pyridine, pyrazine, sym-triazine, and sym-tetrazine) have been computed using a benchmark quality coupled cluster through the perturbative triples (CCSD(T)) method at the estimated complete basis set ...

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  • Abdul JABBAR

    The work presented in this chapter was aimed to explore the effect of nanocellulose coating on the mechanical and thermomechanical properties of jute/green epoxy composites.

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  • Journal of Fluid Mechanics - ResearchGate

    Journal description. Journal of Fluid Mechanics is the leading international journal in the field and is essential reading for all those concerned with developments in fluid mechanics.

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  • Effects of the Overall Length and OD on Opposing-pulse-jet ...

    Effect of Filter Length (1) On the Evolution of Static Pressure. Shown in Fig. 2 is the evolution of static pressure contour and flow streamline when the opposing-pulse-jet cleaning was operated with the delay time Δt = +0.025 s. The filter cartridges under the study have the overall length L = 660, 1350, 2000 mm, and outer diameter OD = 320 mm. At the start of the primary jet, the flow ...

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  • Screech suppression in supersonic jets

    11 November 2012. An experimental study of the nozzle lip thickness effect on supersonic jet screech tones. Journal of Mechanical Science and Technology, Vol. 20, No. 4. Nozzle Orientation Effects and Nonlinear Interactions Between Twin Jets of Complex Geometry. Rahul Joshi , Praveen Panickar , K. Srinivasan and.

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  • B. G. Thomas*, R. Singh, S. P. Vanka, K. Timmel, S. Eckert ...

    18] and large eddy simulations (LESs) [12–14] to investigate the effect of ruler electromagnetic braking (EMBr) on tran-sient flow phenomena,withconducting(brass) versusinsu-lated (plastic) side walls. The application of a single-ruler *Corresponding author: B. G. Thomas, Mechanical Science and

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  • Recent developments in microfluidic synthesis of ...

    In the jet nozzle jetting method, the difficulty in tuning the jet dispensing time often leads to the formation of miniscule satellite vesicles. On the contrary, the DSSF approach is not only capable of forming cell-sized liposomes with high size controllability in a simple equipment setup using the size-filtration effect but also allows the ...

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  • Numerical simulation for optimizing the nozzle of moist ...

    The nozzles of moist-mix shotcrete are the key parts of forming a steady jet flow field and ensuring the uniform mixing of water and other ingredients. In this paper, for optimizing the nozzle of moist-mix shotcrete, both the internal and external field of a variety of spray nozzles were simulated and analyzed by adopting orthogonal test method with Fluent simulation software combined.

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  • Fundamentals of spray drying - GEA engineering for a ...

    This effect is achieved in spite of the amount of the incorporated air in the droplets being higher from a wheel atomizer than from nozzles as shown in previous example. Fig. 3.9 (right) shows a particle from a single-stage dryer operating with steam-swept-wheel atomizer.

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  • 1. Introduction - Moog Inc.

    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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  • Experimental and Numerical Study of Jet Impingement ...

    The Z/D considered are 3, 5, and 8. In jet impingement cooling, the jet of fluid strikes perpendicular to the target surface to be cooled with high velocity to dissipate the heat. The target surface is heated up by a direct current (DC) power source.

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  • Abdul JABBAR

    The work presented in this chapter was aimed to explore the effect of nanocellulose coating on the mechanical and thermomechanical properties of jute/green epoxy composites.

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  • The Journal of Physical Chemistry A

    In nitrogen, the decay of the N2 (A) density is shown to be a second-order process with a rate coefficient of 1.1 × 10−9 cm3 s−1 at 1600 K with a factor of 2 uncertainty. In air, the decay is estimated to be 1 order of magnitude faster than that in nitrogen owing to quenching by atomic and molecular oxygen.

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    Advanced materials for 3D bioprinting. In bioprinting, bioink is mainly used as a biocompatible hydrogel and is utilized to protect cells from damage that would occur during the printing process. 21,26 In addition, the bioink is geometrical support for the 3D structure. To mimic the hierarchical architecture of native tissue, most studies have focused on improving the printability, viscosity ...

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  • American Society of Mechanical Engineers - Submission

    Real time condition monitoring of jet engines can lead to considerable improvements in efficiency, reducing pollution and fuel costs. In the case of Nozzle Guide Vanes (NGVs) the current methods of monitoring temperature are offline measurements utilising temperature sensitive paints or thermal barrier coatings, among others.

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  • AIAA Scitech 2021 Forum

    Michael A. Park and. Melissa B. Carter. AIAA 2021-0345. APA-15/INPSI-03:Special Session: 3rd AIAA Sonic Boom Workshop Report-Out II: Nearfield CFD Cases • Tuesday, 12 January 2021 • 1300 hrs.

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    The present study was planned to synthesize ZnO NPs biologically using Ochradenus arabicus leaves and examine their effect on the morphology and physiology properties of Maerua oblongifolia cultured in vitro. ZnO NPs were characterized by UV–visible spectroscopy (UV–vis), X-ray diffractometer (XRD), Fourier transform infrared spectroscopy ...

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  • The Next Frontier in Melt Electrospinning: Taming the Jet

    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 of the molten polymer.

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  • Frontiers of Fluid Mechanics - 1st Edition

    Frontiers of Fluid Mechanics documents the proceedings of the Beijing International Conference on Fluid Mechanics, held in Beijing, …

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    Electrospun hybrid scaffolds are an effective platform to deliver drugs site specifically for the prevention and treatment of diseases in addition to promote tissue regeneration because of the flexibility to load drugs therein. In the present study, electrospun hybrid scaffolds containing antibiotics were developed to support cellular activities and eliminate potential postoperative ...

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  • The NASA Spitzer Space Telescope: Review of Scientific ...

    The National Aeronautics and Space Administration’s Spitzer Space Telescope (formerly the Space Infrared Telescope Facility) is the fourth and final facility in the Great Observatories Program, joining Hubble Space Telescope (1990), the Compton Gamma-Ray Observatory (1991–2000), and the Chandra X-Ray Observatory (1999). Spitzer, with a sensitivity that is almost three orders of magnitude ...

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    Water Process Method of coffee powder extraction: During the water process, you place the coffee beans in water and heat to around boiling points. This removes the caffeine from the beans, but it removes all flavors. You treat the mixture with a solvent, which absorbs & evaporates the caffeine.

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  • AIAA Scitech 2021 Forum

    Michael A. Park and. Melissa B. Carter. AIAA 2021-0345. APA-15/INPSI-03:Special Session: 3rd AIAA Sonic Boom Workshop Report-Out II: Nearfield CFD Cases • Tuesday, 12 January 2021 • 1300 hrs.

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  • FUN3D Manual :: Chapter 2: Reference Information

    The fine-scale turbulent mixing noise is the dominant component in the sideline and upstream directions. Large-scale turbulent mixing noise radiates predominantly in the downstream jet direction. This technical Note aims to identify the statistical source term for the fine-scale turbulent mixing noise. FUN3D Manual: 13.7 (4.0 MB PDF)

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    The present study was planned to synthesize ZnO NPs biologically using Ochradenus arabicus leaves and examine their effect on the morphology and physiology properties of Maerua oblongifolia cultured in vitro. ZnO NPs were characterized by UV–visible spectroscopy (UV–vis), X-ray diffractometer (XRD), Fourier transform infrared spectroscopy ...

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  • Fundamentals of spray drying - GEA engineering for a ...

    This effect is achieved in spite of the amount of the incorporated air in the droplets being higher from a wheel atomizer than from nozzles …

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  • The NASA Spitzer Space Telescope: Review of Scientific ...

    The National Aeronautics and Space Administration’s Spitzer Space Telescope (formerly the Space Infrared Telescope Facility) is the fourth and final facility in the Great Observatories Program, joining Hubble Space Telescope (1990), the Compton Gamma-Ray Observatory (1991–2000), and the Chandra X-Ray Observatory (1999). Spitzer, with a sensitivity that is almost three orders of magnitude ...

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    Effect of Sintering Conditions on Microwave Dielectric Properties of Ni 0.5 Ti 0.5 NbO 4 Ceramics Kai-Yuan Hsiao, Ching-Fang Tseng, Cheng-Hsing Hsu, and Hsin-Han Tung 012078, 10.7566/JPSCP.1.012078

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    Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 9 Full PDFs related to this paper. Read Paper. Cummins Installation, Operations & Maintenance Manual.

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    The present invention relates to an apparatus and method for enhancement of the stream of plasma particles created by the process of cathode arc vapor deposition. The apparatus is designed to control through trapping the plasma particles generated from a sacrificial cathode plasma source and focus the plasma particle stream to collide with and ...

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    The Buyer’s Guide helps you define your application accuracy requirements so 3D Systems’ experts can help you choose the right 3D printer at the right price. Understanding the intended applications and the needed material characteristics is important in selecting the best 3D printer for your needs.

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    This effect is achieved in spite of the amount of the incorporated air in the droplets being higher from a wheel atomizer than from nozzles …

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  • Far-UV Annealed Inkjet-Printed In2O3 Semiconductor Layers ...

    The mechanical properties of sputtered MO TFTs have been reported to be improved with the selection of highly ductile gate electrode material and by using a thinner substrate (<10 μm). (52) These approaches could also be exploited to prevent the cracking of the gate electrode of the inkjet-printed In 2 O 3 devices on PEN.

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    The present study was planned to synthesize ZnO NPs biologically using Ochradenus arabicus leaves and examine their effect on the morphology and physiology properties of Maerua oblongifolia cultured in vitro. ZnO NPs were characterized by UV–visible spectroscopy (UV–vis), X-ray diffractometer (XRD), Fourier transform infrared spectroscopy ...

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    Turbulence measurements in unsteady open-channel flows over a smooth bed were conducted with a two-component laser Doppler anemometer (LDA). It was confirmed that the peaks of the water-surface slope, the bulk mean velocity, water discharge and finally the flow depth appear in these turn in flooded flows and this tendency becomes more remarkable with an increase of the unsteadiness.

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    Mechanisms of CaCO3 nucleation from solutions that depend on multistage pathways and the existence of species far more complex than simple ions or ion pairs have recently been proposed. Herein, we provide a tightly coupled theoretical and experimental study on the pathways that precede the initial stages of CaCO3 nucleation. Starting from molecular simulations, we succeed in correctly ...

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    A solenoid valve is an electrically controlled valve. The valve features a solenoid, which is an electric coil with a movable ferromagnetic core (plunger) in its center. In the rest position, the plunger closes off a small orifice. An electric current through the coil creates a magnetic field. The magnetic field exerts an upwards force on the ...

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    A coated or encapsulated granular fertilizer which comprises an olefin polymer and/or copolymer and a polyether polyol in a defined amount. The olefin polymer is an ethylene or propylene homopolymer and/or a copolymer of an olefin monomer and a copolymerizable monomer such as olefinic monomers, vinyl acetate and carbon monoxide.

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