The Experts below are selected from a list of 285 Experts worldwide ranked by ideXlab platform
György Benedek - One of the best experts on this subject based on the ideXlab platform.
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Nanostructuring of potassium fulleride layers Simulation of atomic force microscopy of fractal nanostructured carbon films
EPL (Europhysics Letters), 2002Co-Authors: Pierre Levitz, ERIC LECOLIER, A Mourchid, M Bogana, Davide Donadio, György BenedekAbstract:A Lattice-Gas Model for alkali-metal fullerides: face-centred-cubic structure László Udvardi and György Szabó Nanostructuring beam-deposited fullerene layers R F M Lobo and C A C Sequeira Fullerene cluster between graphite walls—Computer simulation M. Skrzypek and Z. Gburski Liquid-solid transition of Laponite suspensions at very low ionic strength: Long-range electrostatic stabilisation of anisotropic colloids
S. Das Gupta - One of the best experts on this subject based on the ideXlab platform.
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Exploring the lattice gas Model for isoscaling
Nuclear Physics, 2008Co-Authors: S. Das GuptaAbstract:Abstract Isotopic spin dependent lattice gas Model is used to examine if it produces the isoscaling behaviour seen in intermediate energy heavy ion collisions. Qualitative features are reproduced but quantitative agreement with experiments is lacking.
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Incorporating radial flow in the lattice gas Model for nuclear disassembly
Physical Review C, 2001Co-Authors: S. Das GuptaAbstract:We consider extensions of the lattice gas Model to incorporate radial flow. Experimental data are used to set the magnitude of radial flow. This flow is then included in the Lattice Gas Model in a microcanonical formalism. For magnitudes of flow seen in experiments, the main effect of the flow on observables is a shift along the $E^*/A$ axis.
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Caloric curves for small systems in the nuclear lattice gas Model
Physical Review C, 2001Co-Authors: S. Das GuptaAbstract:For pedagogical reasons we compute the caloric curve for 11 particles in a ${3}^{3}$ lattice. Monte Carlo simulation can be avoided and exact results are obtained. We compare canonical and microcanonical results for the caloric curve. Even down to this small system, agreement between the canonical Model and the microcanonical Model is surprisingly good. We point out that the introduction of kinetic energy in the nuclear lattice gas Model modifies the results of the standard lattice gas Model in a profound way. The Model is also used to test the accuracy of the saddle-point approximation for density of states.
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Microcanonical lattice gas Model for nuclear disassembly
Physical Review C, 2000Co-Authors: S. Das Gupta, Sandip SamaddarAbstract:Microcanonical calculations are no more difficult to implement than canonical calculations in the lattice gas Model. We report calculations for a few observables where we compare microcanonical Model results with canonical Model results.
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THE ONE BODY DENSITY IN A FINITE SIZE LATTICE GAS Model
Physics Letters B, 1999Co-Authors: Sandip Samaddar, S. Das Gupta, J. N. De, B. K. AgrawalAbstract:Abstract We obtain the one body density in a finite size lattice gas Model which has been often used to interpret experimental data in intermediate energy heavy ion collisions. A comparison is made with the one body density profile obtained in a finite temperature Thomas–Fermi theory.
Pierre Levitz - One of the best experts on this subject based on the ideXlab platform.
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Nanostructuring of potassium fulleride layers Simulation of atomic force microscopy of fractal nanostructured carbon films
EPL (Europhysics Letters), 2002Co-Authors: Pierre Levitz, ERIC LECOLIER, A Mourchid, M Bogana, Davide Donadio, György BenedekAbstract:A Lattice-Gas Model for alkali-metal fullerides: face-centred-cubic structure László Udvardi and György Szabó Nanostructuring beam-deposited fullerene layers R F M Lobo and C A C Sequeira Fullerene cluster between graphite walls—Computer simulation M. Skrzypek and Z. Gburski Liquid-solid transition of Laponite suspensions at very low ionic strength: Long-range electrostatic stabilisation of anisotropic colloids
Peter V. Coveney - One of the best experts on this subject based on the ideXlab platform.
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A particulate basis for an immiscible Lattice-Gas Model
Computer Physics Communications, 2020Co-Authors: Bruce M. Boghosian, Peter V. CoveneyAbstract:We show that a phenomenological hydrodynamic Lattice-Gas Model of two-phase flow, developed by Rothman and Keller in 1988 and used extensively for numerical simulations since then, can be derived from an underlying Model of particle interactions. From this result, we elucidate the nature of the hydrodynamic limit of the Rothman-Keller Model.Comment: 11 pages. Accepted for publication in Computer Physics Communication
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A particulate basis for an immiscible Lattice-Gas Model
Computer Physics Communications, 2000Co-Authors: Bruce M. Boghosian, Peter V. CoveneyAbstract:Abstract We show that a phenomenological hydrodynamic Lattice-Gas Model of two-phase flow, developed by Rothman and Keller in 1988 and used extensively for numerical simulations since then, can be derived from an underlying Model of particle interactions. From this result, we elucidate the nature of the hydrodynamic limit of the Rothman–Keller Model.
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A Lattice-Gas Model of Microemulsions
Proceedings of The Royal Society A: Mathematical Physical and Engineering Sciences, 1996Co-Authors: Bruce M. Boghosian, Peter V. Coveney, Andrew N. EmertonAbstract:We develop a lattice gas Model for the non-equilibrium dynamics of microemulsions. Our Model is based on the immiscible lattice gas of Rothman & Keller, which we reformulate using a microscopic, particulate description so as to permit generalization to more complicated interactions, and on the prescription of Chan & Liang for introducing such interparticle interactions into lattice gas dynamics. We present the results of simulations to demonstrate that our Model exhibits the correct phenomenology, and we contrast it with both equilibrium lattice Models of microemulsions, and to other lattice gas Models.
Shiqiang Dai - One of the best experts on this subject based on the ideXlab platform.
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Analysis of pedestrian dynamics in counter flow via an extended lattice gas Model
Physical Review E - Statistical Nonlinear and Soft Matter Physics, 2008Co-Authors: Hua Kuang, Xingli Li, Tao Song, Shiqiang DaiAbstract:The Modeling of human behavior is an important approach to reproduce realistic phenomena for pedestrian flow. In this paper, an extended lattice gas Model is proposed to simulate pedestrian counter flow under the open boundary conditions by considering the human subconscious behavior and different maximum velocities. The simulation results show that the presented Model can capture some essential features of pedestrian counter flows, such as lane formation, segregation effect, and phase separation at higher densities. In particular, an interesting feature that the faster walkers overtake the slower ones and then form a narrow-sparse walkway near the central partition line is discovered. The phase diagram comparison and analysis show that the subconscious behavior plays a key role in reducing the occurrence of jam cluster. The effects of the symmetrical and asymmetrical injection rate, different partition lines, and different combinations of maximum velocities on pedestrian flow are investigated. An important conclusion is that it is needless to separate faster and slower pedestrians in the same direction by a partition line. Furthermore, the increase of the number of faster walkers does not always benefit the counter flow in all situations. It depends on the magnitude and asymmetry of injection rate. And at larger maximum velocity, the obtained critical transition point corresponding to the maximum flow rate of the fundamental diagram is in good agreement with the empirical results.