Results 11 to 20 of about 2,076,992 (352)

Discrete Competitive Lotka–Volterra Model with Controllable Phase Volume [PDF]

open access: yesSystems, 2020
The simulation of population dynamics and social processes is of great interest in nonlinear systems. Recently, many scholars have paid attention to the possible applications of population dynamics models, such as the competitive Lotka–Volterra equation,
Anzhelika Voroshilova, Jeff Wafubwa
doaj   +2 more sources

Phase transitions in models with discrete symmetry [PDF]

open access: greenModern Physics Letters A, 2014
We investigate a class of models with a massless fermion and a self-interacting scalar field with the Yukawa interaction between these two fields. The models considered are formulated in two and four spacetime dimensions and possess a discrete symmetry. We calculate the chiral condensates which are calculated in the one-loop approximation.
V.G. Ksenzov, А. И. Романов
openalex   +4 more sources

Nodal Discretization of Two-Phase Discrete Fracture Matrix Models [PDF]

open access: yes, 2021
This chapter reviews the nodal Vertex Approximate Gradient (VAG) discretization of two-phase Darcy flows in fractured porous media for which the fracture network is represented as a manifold of co-dimension one with respect to the surrounding matrix domain. Different types of models and their discretizations are considered depending on the transmission
Brenner, Konstantin   +2 more
openaire   +1 more source

Discrete Phase Shifts of Intelligent Reflecting Surface Systems Considering Network Overhead

open access: yesEntropy, 2022
In this study, the performance of intelligent reflecting surfaces (IRSs) with a discrete phase shift strategy is examined in multiple-antenna systems.
Jaehong Kim   +3 more
doaj   +1 more source

Determination of an Initial Stage of the Bone Tissue Ingrowth Into Titanium Matrix by Cell Adhesion Model

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
For achieving early intervention treatment to help patients delay or avoid joint replacement surgery, a personalized scaffold should be designed coupling the effects of mechanical, fluid mechanical, chemical, and biological factors on tissue regeneration,
Ziyu Liu   +10 more
doaj   +1 more source

Phase computations and phase models for discrete molecular oscillators [PDF]

open access: yesEURASIP Journal on Bioinformatics and Systems Biology, 2012
Biochemical oscillators perform crucial functions in cells, e.g., they set up circadian clocks. The dynamical behavior of oscillators is best described and analyzed in terms of the scalar quantity, phase. A rigorous and useful definition for phase is based on the so-called isochrons of oscillators.
Suvak, Onder, Demir, Alper
openaire   +4 more sources

Simulation of Separation of Salt Solution from Crude Oil in a Hydrocyclone

open access: yesJournal of Engineering, 2022
In this study, separating water from oil is studied numerically. In this simulation, the Reynolds Stress Model and the mixture multiphase model are used for coupling the velocity and pressure equations using the SIMPLE algorithm.
Mansour Mohammadi   +4 more
doaj   +1 more source

A Numerical Method for Transient Tracking of Sediment Particles in Dredge Pump

open access: yesShanghai Jiaotong Daxue xuebao, 2022
In order to transiently solve the transient movement of sediment particles in dredge pumps, a modified algorithm is realized based on the discrete phase model in ANSYS Fluent.
GUO Tao, LIU Mingming, CAO Lei, HU Jingzhao, HONG Guojun, YOU Yunxiang
doaj   +1 more source

Hybrid VOF–Lagrangian CFD Modeling of Droplet Aerobreakup

open access: yesApplied Sciences, 2022
A hybrid VOF–Lagrangian method for simulating the aerodynamic breakup of liquid droplets induced by a traveling shock wave is proposed and tested. The droplet deformation and fragmentation, together with the subsequent mist development, are predicted by ...
Viola Rossano, Giuliano De Stefano
doaj   +1 more source

Two-Way Coupling Simulation of Solid-Liquid Two-Phase Flow and Wear Experiments in a Slurry Pump

open access: yesJournal of Marine Science and Engineering, 2022
The slurry pump is one of the most important pieces of equipment in mineral transportation and separation systems, and it has complex two-phase flow characteristics and wear mechanisms.
Lei Jiang   +4 more
doaj   +1 more source

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