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A model for the catalytic oxidation of CO that includes CO desorption and diffusion, O repulsion, and impurities in the gas phase
Buendía, G.M.; Rikvold, P.A. - In: Physica A: Statistical Mechanics and its Applications 424 (2015) C, pp. 217-224
includes the simultaneous presence of contaminants in the gas phase, CO desorption, CO diffusion, and strong repulsion between … rate is greatly reduced, but this effect is mitigated by CO desorption and diffusion. CO desorption has the effect of …
Persistent link: https://www.econbiz.de/10011194105
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Adsorption–desorption kinetics of the monomer–dimer mixture
Boscoboinik, J.A.; Manzi, S.J.; Pereyra, V.D. - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 7, pp. 1317-1328
, when processes like adsorption, desorption and diffusion are included. The hierarchy of equation is truncated by using mean … neighbor lateral interaction are presented. The irreversible kinetics are also considered. Temperature-programmed-desorption …
Persistent link: https://www.econbiz.de/10010591424
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Sorption heat engines: Simple inanimate negative entropy generators
Muller, Anthonie W.J.; Schulze-Makuch, Dirk - In: Physica A: Statistical Mechanics and its Applications 362 (2006) 2, pp. 369-381
cycling and work on alternating adsorption and desorption. These generators are not in general explicitly recognized as heat …
Persistent link: https://www.econbiz.de/10010874681
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Adsorption–desorption processes of extended objects on a square lattice
Budinski-Petković, Lj.; Kozmidis-Luburić, U. - In: Physica A: Statistical Mechanics and its Applications 301 (2001) 1, pp. 174-180
Kinetics of adsorption–desorption process is studied by Monte Carlo simulation on a square lattice. The depositing … desorption with probability Pdes=1−Pa. The equilibrium coverage and the relaxation time are obtained for various ratios of the … adsorption probability to the desorption probability. The dependence of the relaxation time σ on (Pa/Pdes) is described by a …
Persistent link: https://www.econbiz.de/10011062457
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Adsorption, desorption and diffusion of extended objects on a square lattice
Budinski-Petković, Lj; Tošić, T - In: Physica A: Statistical Mechanics and its Applications 329 (2003) 3, pp. 350-356
Kinetics of the adsorption–desorption process with diffusional relaxation is studied by Monte-Carlo simulations on a …, desorption and diffusion. The time is measured by the number of adsorption attempts per lattice site and the kinetics of the … process is governed by the ratios of desorption to adsorption rate and diffusion to adsorption rate. The process is reversible …
Persistent link: https://www.econbiz.de/10011063727
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Dynamics of competing predator–prey species
Bradshaw, A.T.; Moseley, L.L. - In: Physica A: Statistical Mechanics and its Applications 261 (1998) 1, pp. 107-114
We study the predator–prey model described by the Lotka–Volterra equations (N.S. Goel et al., Rev. Mod. Phys. 43(1971) 231). These coupled non-linear differential equations are solved numerically and compared with Monte Carlo simulations. Spectral analysis of the data indicate the presence...
Persistent link: https://www.econbiz.de/10010599584
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Stochastic noise approach to traffic flow modeling
Sopasakis, Alexandros - In: Physica A: Statistical Mechanics and its Applications 342 (2004) 3, pp. 741-754
Traffic flow states are described as resulting from a stochastically driven system. Vehicles advance based on the energy profile of their surrounding traffic.
Persistent link: https://www.econbiz.de/10010588558
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Adsorption thermodynamics of a lattice–gas model with non-additive lateral interactions on triangular and honeycomb lattices
Pinto, O.A.; Ramirez-Pastor, A.J.; Nieto, F. - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 17, pp. 3456-3464
Adsorption thermodynamics of a lattice–gas model with non-additive interactions between adsorbed particles for triangular and honeycomb lattices is discussed in the present study. The model used here assumes that the energy which links a certain atom with any of its nearest-neighbors strongly...
Persistent link: https://www.econbiz.de/10010588565
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Difference percolation on a square lattice
Vidales, A.M. - In: Physica A: Statistical Mechanics and its Applications 285 (2000) 3, pp. 259-266
Simulations of percolation processes on random site square lattices are performed implementing a different occupation algorithm for both ordinary percolation (OP) and invasion percolation (IP) problems. The main feature of the occupation process is the fact that it is performed in a locally...
Persistent link: https://www.econbiz.de/10010588709
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Phase transitions of the energy-relative enstrophy theory for a coupled barotropic fluid–rotating sphere system
Ding, Xueru; Lim, Chjan C. - In: Physica A: Statistical Mechanics and its Applications 374 (2007) 1, pp. 152-164
The statistical equilibrium of a coupled barotropic fluid–rotating solid sphere system is simulated using a energy-relative enstrophy spherical model in a wide range of parameter space by Monte Carlo (MC) methods [J.M. Hammersley, D.C. Handscomb, Monte Carlo Methods, Methuen & Co, London,...
Persistent link: https://www.econbiz.de/10010588937