Articles with "density ratio" as a keyword



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Spatial variability of the Arctic Ocean's double-diffusive staircase

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016jc012419

Abstract: The Arctic Ocean thermohaline stratification frequently exhibits a staircase structure overlying the Atlantic Water Layer that can be attributed to the diffusive form of double-diffusive convection. The staircase consists of multiple layers of O(1) m… read more here.

Keywords: double diffusive; arctic ocean; diffusive staircase; density ratio ... See more keywords
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Fluid–fluid interactions in pseudopotential lattice Boltzmann models: Effects of model schemes and fluid properties

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Published in 2020 at "International Journal for Numerical Methods in Fluids"

DOI: 10.1002/fld.4943

Abstract: This article demonstrates the characteristics of interparticle forces and forcing schemes in pseudopotential lattice Boltzmann simulations. The Yuan–Schaefer (YS), multipseudopotential interaction (MPI), and piecewise linear methods are examined as techniques of equation of state (EOS)… read more here.

Keywords: density ratio; pseudopotential lattice; lattice boltzmann;
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The effect of thinning and cue:density ratio on risk perception by Rana dalmatina tadpoles

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Published in 2018 at "Hydrobiologia"

DOI: 10.1007/s10750-018-3510-6

Abstract: The “risk assessment hypothesis” considers prey density as an important variable to properly assess the actual level of risk, and predicts that, when the ratio between predator cue concentration and prey density is constant, the… read more here.

Keywords: density ratio; cue density; risk; density ... See more keywords
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An experimental investigation on streamwise distance and density ratio effects on double-jet film-cooling

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Published in 2019 at "Applied Thermal Engineering"

DOI: 10.1016/j.applthermaleng.2019.04.081

Abstract: Abstract In the present study, flow field and film-cooling effectiveness of several double-jet film-cooling geometries on a flat plate are measured. The streamwise distance varies as s/d = 3.0, 4.0, 5.0, and 6.0, while three spanwise distance… read more here.

Keywords: film; streamwise distance; distance; density ratio ... See more keywords
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Improving the flexural-strength-to-density ratio in alumina ceramics with the addition of silicon nitride

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Published in 2020 at "Ceramics International"

DOI: 10.1016/j.ceramint.2020.09.260

Abstract: Abstract Alumina (Al2O3) and silicon nitride (Si3N4) ceramic compositions were studied as prospective materials for ballistic ceramics. Alumina ceramics with contents of 0, 5, 10 and 15 wt% of silicon nitride studied in order to improve… read more here.

Keywords: flexural strength; silicon nitride; strength density; density ratio ... See more keywords
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Secondary breakup of drops at moderate Weber numbers: Effect of Density ratio and Reynolds number

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Published in 2019 at "International Journal of Multiphase Flow"

DOI: 10.1016/j.ijmultiphaseflow.2019.04.026

Abstract: Abstract Breakup of liquid drops occurs in several natural and industrial settings. Fully resolved volume of fluid based simulations presented in this study reveal the complete flow physics and droplet dynamics that lead to the… read more here.

Keywords: density; moderate weber; breakup; number ... See more keywords
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Effect of the density ratio variation on the dynamics of a liquid jet injected into a gaseous cross-flow

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Published in 2021 at "Physics of Fluids"

DOI: 10.1063/5.0064149

Abstract: In this paper, we investigate the effect of the density ratio on the primary atomization characteristics of a liquid jet injected into a gaseous crossflow. Jets into crossflow with a high density ratio can be… read more here.

Keywords: density ratio; effect density; liquid jet; density ... See more keywords
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Nonparametric direct density ratio estimation using beta kernel

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Published in 2020 at "Statistics"

DOI: 10.1080/02331888.2020.1722671

Abstract: A new nonparametric density ratio estimator using the beta kernel is proposed. It is shown that the beta kernel density ratio estimator (KDRE) is free of boundary or tail bias, and the asymptotic properties of… read more here.

Keywords: density ratio; using beta; beta kernel; nonparametric direct ... See more keywords
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Phase-field lattice Boltzmann model for two-phase flows with large density ratio.

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Published in 2022 at "Physical review. E"

DOI: 10.1103/physreve.105.015304

Abstract: In this work, a lattice Boltzmann (LB) model based on the phase-field method is proposed for simulating large density ratio two-phase flows. An improved multiple-relaxation-time (MRT) LB equation is first developed to solve the conserved… read more here.

Keywords: equation; large density; density ratio; model ... See more keywords
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Subsampling Generative Adversarial Networks: Density Ratio Estimation in Feature Space With Softplus Loss

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Published in 2020 at "IEEE Transactions on Signal Processing"

DOI: 10.1109/tsp.2020.2979601

Abstract: Filtering out unrealistic images from trained generative adversarial networks (GANs) has attracted considerable attention recently. Two density ratio based subsampling methods—Discriminator Rejection Sampling (DRS) and Metropolis-Hastings GAN (MH-GAN)—were recently proposed, and their effectiveness in improving… read more here.

Keywords: generative adversarial; loss; density; density ratio ... See more keywords
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A caveat on the Savage–Dickey density ratio: The case of computing Bayes factors for regression parameters

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Published in 2019 at "British Journal of Mathematical and Statistical Psychology"

DOI: 10.1111/bmsp.12150

Abstract: The Savage-Dickey density ratio is a simple method for computing the Bayes factor for an equality constraint on one or more parameters of a statistical model. In regression analysis, this includes the important scenario of… read more here.

Keywords: ratio; dickey density; savage dickey; density ratio ... See more keywords