Results 61 to 70 of about 705,406 (173)

Excess second virial coefficients for some dilute binary gas mixtures

open access: yes, 1982
Excess and interaction second virial coefficients have been measured in the temperature range 290-320 K for 20 binary gaseous systems. Several of these systems have previously been studied by Brewer. The present values are in excellent agreement with his
KR Harris   +3 more
core   +1 more source

Virial coefficients of hard, two-dimensional, convex particles up to the eighth order

open access: yes, 2023
We calculated virial coefficients for hard ellipses, stadia, rectangles, planar lenses and rhombi up to the eighth order employing Mayer-sampling Monte Carlo simulations.
Markus Kulossa (17632353)   +1 more
core   +1 more source

The Virial Expansion of the Hydrogen Equation of State in Comparison to PIMC Simulations: The Quasiparticle Concept, IPD, and Ionization Degree

open access: yesContributions to Plasma Physics, Volume 66, Issue 7-8, September 2026.
ABSTRACT The properties of plasmas in the low‐density limit are described by virial expansions. Analytical expressions are known for the lowest virial coefficients from Green's function approaches. Recently, accurate path‐integral Monte Carlo (PIMC) simulations were performed for the hydrogen plasma at low densities by Filinov and Bonitz (Phys. Rev.
Gerd Röpke   +3 more
wiley   +1 more source

Virial coefficients and vapor-liquid equilibria of the EXP6 and 2-Yukawa fluids

open access: yesCondensed Matter Physics, 2011
Virial coefficients B2 through B4 and the vapor-liquid equilibria for the EXP6 and 2-Yukawa (2Y) fluids have been determined using numerical integrations and Gibbs ensemble simulations, respectively.
I. Nezbed   +3 more
doaj   +1 more source

Generalized Beth–Uhlenbeck Entropy Formula From the Φ‐Derivable Approach

open access: yesContributions to Plasma Physics, Volume 66, Issue 7-8, September 2026.
ABSTRACT We derive a generalized Beth–Uhlenbeck formula for the entropy of a dense fermion system with strong two‐particle correlations, including scattering states and bound states. We work within the Φ‐derivable approach to the thermodynamic potential.
David Blaschke, Gerd Röpke, Gordon Baym
wiley   +1 more source

VIRIAL COEFFICIENTS OF NITROGEN FROM A TWO-CENTRE LENNARD-JONES POTENTIAL FUNCTION [PDF]

open access: yes, 2017
This work describes a method for the numerical calculation of second and third virial coefficients of simple linear molecules. The method is applied to nitrogen using a two-centre Lennard-Jones pair-potential and the Axilrod-teller term.
Monago, K.O.
core   +1 more source

SECOND VIRIAL COEFFICIENTS OF NONSPHERICAL MOLECULES WITH INDIVIDUAL DAMPING OF HFDID 1 POTENTIAL [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 1999
The second virial coefficients are given as a spherical-core contribution plus a series of nonspherical perturbation terms. A revised analysis is given of the effect of long-range nonspherical terms in the intermolecular potential on the second virial ...
doaj  

Virial Coefficients for Unlike Interactions

open access: yes, 1963
The nonidealities have been measured at 50 C for nitromethane-acetone, nitromethane-argon, and nitromethane-benzene vapour mixtures. Comparisons of the calculated second virial coefficients for the unlike interactions with estimations from intermolecular
GA Bottomley, TH Spurling
core   +1 more source

Machine learning modeling reveals unconventional nucleation mechanism in phase‐change material GeTe

open access: yesInfoScience, Volume 3, Issue 3, September 2026.
Machine‐learning molecular dynamics reveals that GeTe crystallization begins with Ge‐rich defective octahedral clusters, followed by Te‐mediated assembly into a rock‐salt network. This unconventional two‐stage nucleation pathway explains early Te sublattice ordering, Ge‐vacancy formation, and structural ordering kinetics in phase‐change materials ...
Siqi Tang   +11 more
wiley   +1 more source

NUMERICAL PATH-INTEGRATION CALCULATION OF TRANSPORT PROPERTIES OF STAR POLYMERS AND THETA-DLA AGGREGATES

open access: yesCondensed Matter Physics, 2002
Although the calculation of transport properties of complex-shaped particles (Smoluchowski rate constants for diffusion-limited reactions, Stokes friction coefficient, virial coefficients for conductivity, viscosity and other transport properties) is ...
M.L.Mansfield, J.F.Douglas
doaj   +1 more source

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