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You searched on: Author: vincent shen

Displaying records 21 to 30.
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21. Residual Multiparticle Entropy Does Not Generally Change Sign Near Freezing
Published: 4/13/2008
Authors: William P. Krekelberg, Vincent K Shen, Jeffrey R. Errington, Thomas M. Truskett
Abstract: The residual multiparticle entropy (RMPE) of two- and three-dimensional fluids changes sign near the freezing line, providing a quasi-universal one-phase rule for the location of the liquid-solid transition. We present new simulation results ford- ...

22. Confinement, Entropy, and Single-Particle Dynamics of Equilibrium Hard-Sphere Mixtures
Published: 10/18/2007
Authors: Jeetain Mittal, Vincent K Shen, Jeffrey R. Errington, Thomas M. Truskett
Abstract: We use discontinuous molecular dynamics and grand-canonical transition-matrix Monte Carlo simulations to explore how confinement between parallel hard walls modifies the relationships between packing fraction, self-diffusivity, partial molar excess e ...

23. The third industrial fluid properties simulation challenge
Published: 9/7/2007
Authors: F Case, John K. Brennan, Anne M. Chaka, Kerwin Dobbs, Daniel G Friend, David Frurip, Peter A. Gordon, J Moore, Raymond Dale Mountain, J Olson, Richard Ross, Martin Schiller, Vincent K Shen
Abstract: The third Industrial fluid properties simulation challenge was held from March to September 2006. As in the previous two events, contestants were challenged to predict specific, industrially relevant, properties of fluid systems. Their efforts were ...

24. Coarse-Grained Strategy for Modeling Protein Stability in Concentrated Solutions III: Directional Protein Interactions
Published: 6/1/2007
Authors: Jason K. Cheung, Vincent K Shen, Jeffrey R. Errington, Thomas M. Truskett
Abstract: We introduce an extension to the coarse-grained modeling strategy described in parts I and II of this investigation to account for the possibility of non-uniform spatial distributions of hydrophobic residues on the solvent-exposed surfaces of native ...

25. Comparative Study of the Effect of Tail Corrections on Surface Tension Determined by Molecular Simulation
Published: 5/12/2007
Authors: Vincent K Shen, Raymond Dale Mountain, Jeffrey R. Errington
Abstract: We report results from a comparative study of the influence of tail corrections on the surface tension of the Lennard-Jones fluid. We find that cutoff-independent surface tensions can be obtained by applying a set of tail corrections recently introdu ...

26. Nucleation and Cavitation of Spherical, Cylindrical, and Slab-Like Droplets and Bubbles in Small Systems
Published: 7/1/2006
Authors: Luis G MacDowell, Vincent K Shen, Jeffrey R. Errington
Abstract: We employ a capillary drop model and obtain analytical results that allow us to predict the shape of subcritical isotherms inside the coexistence region of small finite-sized systems. We find that depending on system size, there exist different sequ ...

27. Determination of Surface Tension in Binary Mixtures Using Transition-Matrix Monte Carlo
Published: 1/1/2006
Authors: Vincent K Shen, Jeffrey R. Errington
Abstract: We present a methodology based on grand-canonical transition-matrix Monte Carlo and finite-size scaling analysis to calculate surface tensions in binary mixtures. In particular, mixture transition-matrix Monte Carlo is first used to calculate apparen ...

28. Direct Evaluation of Multi-Component Phase Equilibria Using Flat-Histogram Methods
Published: 10/1/2005
Authors: Jeffrey R. Errington, Vincent K Shen
Abstract: We present a method for directly locating density-driven phase transitions in multi-component systems. Phase coexistence conditions are determined through manipulation of a total density probability distribution evaluated over a density range that i ...

29. Determination of Fluid-Phase Behavior Using Transition-Matrix Monte Carlo: Binary Lennard-Jones Mixtures
Published: 2/1/2005
Authors: Vincent K Shen, Jeffrey R. Errington
Abstract: We present a new computational methodology for determining fluid-phase equilibria in binary mixtures. The method is based on a combination of highly efficient transition-matrix Monte Carlo and histogram reweighting. In particular, a directed grand-ca ...

30. Metastability and Instability in the Lennard-Jones Fluid Investigated by Transition-Matrix Monte Carlo
Published: 9/1/2004
Authors: Vincent K Shen, Jeffrey R. Errington
Abstract: Grand canonical transition-matrix Monte Carlo is used to investigate kinetic and thermodynamic stability limits of the liquid and vapor in the Lennard-Jones fluid. Kinetic spinodal are associated with a vanishing of the free energy barrier between me ...

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