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Adsorption of molecular gases on porous materials in the SAFT-VR approximation

Castro, M.; Martinez, R.; Martinez, A.; Rosu, H.C. - In: Physica A: Statistical Mechanics and its Applications 389 (2010) 16, pp. 3140-3148

A simple molecular thermodynamic approach is applied to the study of the adsorption of gases of chain molecules on solid surfaces. We use a model based on the Statistical Associating Fluid Theory for Variable Range (SAFT-VR) potentials [A. Gil-Villegas, A. Galindo, P.J. Whitehead, S.J. Mills,...

Persistent link: https://www.econbiz.de/10011062923

Random-walk diffusion and drying of porous materials

Mehrafarin, M.; Faghihi, M. - In: Physica A: Statistical Mechanics and its Applications 301 (2001) 1, pp. 163-168

Based on random-walk diffusion, a microscopic model for drying is proposed to explain the characteristic features of the drying-rate curve of porous materials. The constant drying-rate period is considered as a normal diffusion process. The transition to the falling-rate regime is attributed to...

Persistent link: https://www.econbiz.de/10010591054

Multidimensional ion-acoustic solitary waves and shocks in quantum plasmas

Misra, A.P.; Sahu, Biswajit - In: Physica A: Statistical Mechanics and its Applications 421 (2015) C, pp. 269-278

The nonlinear theory of two-dimensional ion-acoustic (IA) solitary waves and shocks (SWS) is revisited in a dissipative quantum plasma. The effects of dispersion, caused by the charge separation of electrons and ions and the quantum force associated with the Bohm potential for degenerate...

Persistent link: https://www.econbiz.de/10011194057

The influence of nonmonotonic synchronized flow branch in a cellular automaton traffic flow model

Jin, Cheng-Jie; Wang, Wei - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 23, pp. 4184-4191

In this paper we study the congested patterns upstream of an isolated on-ramp in a cellular automaton traffic flow model, which is proposed in our previous paper [Cheng-Jie Jin, Wei Wang, Rui Jiang, Kun Gao, J. Stat. Mech (2010) P03018]. The simulation results under open boundary conditions are...

Persistent link: https://www.econbiz.de/10011061642

Three-dimensional finite-difference lattice Boltzmann model and its application to inviscid compressible flows with shock waves

He, Ya-Ling; Liu, Qing; Li, Qing - In: Physica A: Statistical Mechanics and its Applications 392 (2013) 20, pp. 4884-4896

In this paper, a three-dimensional (3D) finite-difference lattice Boltzmann model for simulating compressible flows with shock waves is developed in the framework of the double-distribution-function approach. In the model, a density distribution function is adopted to model the flow field, while...

Persistent link: https://www.econbiz.de/10010742333

Interactions of waves in the speed-gradient traffic flow model

Tang, T.Q.; Huang, H.J.; Gao, Z.Y.; Wong, S.C. - In: Physica A: Statistical Mechanics and its Applications 380 (2007) C, pp. 481-489

In this paper, we use the speed-gradient (SG) model proposed by Jiang et al. [Transportation Research Part B, 36 (2002) 405–419] to study the initial value problem of traffic flow. The evolution of multi-traffic waves is examined through setting piecewise continuous initial density. Numerical...

Persistent link: https://www.econbiz.de/10010591607

Price percolation model

Kanai, Yasuhiro; Abe, Keiji; Seki, Yoichi - In: Physica A: Statistical Mechanics and its Applications 427 (2015) C, pp. 226-233

We propose a price percolation model to reproduce the price distribution of components used in industrial finished … goods. The intent is to show, using the price percolation model and a component category as an example, that percolation …

Persistent link: https://www.econbiz.de/10011209739

On multi-scale percolation behaviour of the effective conductivity for the lattice model

Olchawa, W.; Wiśniowski, R.; Frączek, D.; Piasecki, R. - In: Physica A: Statistical Mechanics and its Applications 424 (2015) C, pp. 130-141

its modified form. The focus is on the percolation behaviour of the effective conductivity of random two- and three … displacements of the percolation threshold. We argue that the behaviour is typical of materials, whose conductivity is dominated by … a few linear, percolation-like, conducting paths. Such a system can be effectively treated as one-dimensional medium. We …

Persistent link: https://www.econbiz.de/10011194003

Vulnerability of state-interdependent networks under malware spreading

Vida, Rafael; Galeano, Javier; Cuenda, Sara - In: Physica A: Statistical Mechanics and its Applications 421 (2015) C, pp. 134-140

Computer viruses are evolving by developing spreading mechanisms based on the use of multiple vectors of propagation. The use of the social network as an extra vector of attack to penetrate the security measures in IP networks is improving the effectiveness of malware, and have therefore been...

Persistent link: https://www.econbiz.de/10011194029

Percolation of binary mixtures adsorbed on square lattices

Sanchez-Varretti, F.O.; García, G.D.; Centres, P.M.; … - In: Physica A: Statistical Mechanics and its Applications 424 (2015) C, pp. 300-311

In this paper, the adsorption of interacting binary mixtures on square lattices has been studied. By using Monte Carlo simulation and finite-size scaling analysis, the connection between the surface ordered phases and the percolating properties of the adsorbed phase has been investigated. A rich...

Persistent link: https://www.econbiz.de/10011194036