Abstract The irreversible random sequential adsorption of polydisperse mixtures ‘lattice animals’ on a three-dimensional cubic lattice is investigated using Monte Carlo simulations. A animal’ defined as 3D object composed group points connected nearest neighbors lattice. Polydisperse consist n objects varying sizes but sharing the same basic shape. This study analyzes influence polydispersity and geometrical properties shapes jamming density <mml:math...

In this paper we develop general equations for the momentum transfer theory (MTT) swarms of particles in mixtures gases including effect nonconservative (reactive) collisions. MTT mean energy, drift velocity, diffusion tensor components, and rate coefficients are derived different degrees approximation hydrodynamic limit small swarm to gas particle mass ratio. Specific formulas were developed criteria negative differential conductivity (NDC) with elastic collisions only a single reactions....

The percolation aspect of random sequential adsorption extended objects on a triangular lattice is studied by means Monte Carlo simulations. depositing are formed self-avoiding steps the lattice. Jamming coverage ${\ensuremath{\theta}}_{\mathrm{jam}}$, threshold ${\ensuremath{\theta}}_{p}^{*}$, and their ratio ${\ensuremath{\theta}}_{p}^{*}/{\ensuremath{\theta}}_{\mathrm{jam}}$ determined for various shapes sizes. We find that ${\ensuremath{\theta}}_{p}^{*}$ may decrease or increase with...

Random sequential adsorption (RSA) on a triangular lattice with defects is studied by Monte Carlo simulations. The initially randomly covered point-like impurities at certain concentration p. deposited objects are formed self-avoiding random walks the lattice. Jamming coverage and percolation threshold determined for wide range of impurity concentrations p various object shapes. Rapidity approach to jamming state found be independent concentration. decreases this decrease more prominent...

The properties of the anisotropic random sequential adsorption (RSA) objects various shapes on a two-dimensional triangular lattice are studied numerically by means Monte Carlo simulations. depositing formed self-avoiding steps, whereby first step determines orientation object. Anisotropy is introduced positing unequal probabilities for along different directions lattice. This probability equal $p$ or $(1\ensuremath{-}p)/2$, depending whether randomly chosen horizontal not, respectively....

The properties of the random sequential adsorption objects various shapes on a two-dimensional triangular lattice are studied numerically by means Monte Carlo simulations. depositing formed self-avoiding steps, whereby size is gradually increased wrapping walks in several different ways. aim this work to investigate impact geometrical jamming density ${\ensuremath{\theta}}_{\text{J}}$ and temporal evolution coverage fraction $\ensuremath{\theta}(t)$. Our results suggest that order symmetry...

We study random sequential adsorption of polydisperse mixtures extended objects both on a triangular and square lattice. The depositing are formed by self-avoiding walks two-dimensional lattices. Numerical simulations were performed to determine the influence number mixture components length shapes making kinetics deposition process. find that late stage follows an exponential law...

Abstract A percolation model with nucleation and object growth is studied by Monte Carlo simulations on a triangular lattice finite-size impurities. The growing objects are needle-like self-avoiding random walk chains. Results obtained for three different shapes of impurities covering sites—needle-like, angled triangular. In each run through the system, initially randomly occupied specified shape at given concentration <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"...

We study, by numerical simulation, the compaction dynamics of frictional hard disks in two dimensions, subjected to vertical shaking. Shaking is modeled a series expansion disk packing, followed dynamical recompression assembly under action gravity. The second phase shake cycle based on an efficient event-driven molecular-dynamics algorithm. analyze for various values friction coefficient and normal restitution. find that time evolution density described...

Reversible random sequential adsorption of objects various shapes on a two-dimensional triangular lattice is studied numerically by means Monte Carlo simulations. The growth the coverage rho(t) above jamming limit to its steady-state value rho(infinity) described pattern = rho(infinity - deltarhoE(beta)[-(t/tau)beta], where E(beta) denotes Mittag-Leffler function order beta element (0, 1). parameter tau found decay with desorption probability P_ according power law AP_(-gamma). exponent...

We have measured the basic characteristics of low current diffuse discharges in argon for pressures. The data voltage and negative differential resistance were obtained together with frequency damping coefficient induced oscillations. These compared predictions a simple analytic model Phelps, Petrović Jelenković [A.V. Z.Lj. B.M. Jelenković, Phys. Rev. E 47, 2825 (1993)] it was found that, while most observables may be represented correctly, there is systematic discrepancy between...

Reversible random sequential adsorption of binary mixtures extended objects on a two-dimensional triangular lattice is studied numerically by means Monte Carlo simulations. The depositing are formed self-avoiding steps. We concentrate here the influence symmetry properties shapes kinetics adsorption-desorption processes in two-component mixtures. provide detailed discussion significance collective events for governing time coverage behavior component with different rotational symmetries....

In this paper we study different effects of excited molecules on swarm parameters, electron energy distribution functions and gas discharge modeling. First discuss a possible experiment in parahydrogen to resolve the discrepancy hydrogen vibrational excitation cross section data. Negative differential conductivity (NDC) is kinetic phenomenon which manifests itself particular dependence drift velocity E/N it affected by superelastic collisions with states. A complete scheme for argon required...

Electron energy distribution functions (EEDF) in N2 Townsend discharges for E/N between 1 and 30 kTd (1 Td=10−21 V m2) were measured using a multigridded analyzer behind small (0.1 mm) aperture the graphite anode. Experimental results are further analyzed by applying Monte Carlo simulations order to describe nonequilibrium transport steady state determine origin of observed EEDF features. Boundary effects at electrodes described allowing exact representation absorption, reflection, secondary...

The random sequential adsorption (RSA) approach is used to analyze of spherical particles a fixed radius on nonuniform flat surfaces covered by rectangular cells. configuration the cells (heterogeneities) was produced performing RSA simulations prescribed coverage fraction . Adsorption assumed occur if particle (projected) center lies within cell area, i.e. sphere touches jammed-state properties model were studied for different values size α (comparable with adsorbing size) and density...

The properties of the random sequential adsorption objects various shapes on simple three-dimensional (3D) cubic lattice are studied numerically by means Monte Carlo simulations. Depositing "lattice animals," made a certain number nearest-neighbor sites lattice. aim this work is to investigate impact geometrical jamming density θ_{J} and temporal evolution coverage fraction θ(t). We analyzed all animals size n=1, 2, 3, 4, 5. A significant n⩾6 were also used confirm our findings. Approach...