The virial theorem and the dark matter problem in hybrid metric-Palatini gravity [PDF]
, 2013 Hybrid metric-Palatini gravity is a recently proposed theory, consisting of the superposition of the metric Einstein-Hilbert Lagrangian with an $f(\cal R)$ term constructed \`{a} la Palatini. The theory predicts the existence of a long-range scalar field,
Capozziello, Salvatore +4 more
core +2 more sources
Neutral hydrogen cloud distances and the strength of the interstellar magnetc field [PDF]
, 1986 If HI clouds exist in pressure equilibrium in an environment where gas pressure is a function of z-distance and if HI cloud density is a function of z-distance, it can be shown that a quantity called the Virial Measure is a function of z-distance.
Verschuur, G. L.
core +1 more source
Semiclassical corrections to the interaction energy of a hard-sphere Boltzmann gas [PDF]
, 2006 Quantum effects in statistical mechanics are important when the thermal wavelength is of the order of, or greater than, the mean interatomic spacing. This is examined at depth taking the example of a hard-sphere Boltzmann gas.
Beth E +11 more
core +1 more source
First-order virial expansion of short-time diffusion and sedimentation coefficients of permeable particles suspensions [PDF]
, 2011 For suspensions of permeable particles, the short-time translational and rotational self-diffusion coefficients, and collective diffusion and sedimentation coefficients are evaluated theoretically.
Bogdan Cichocki +7 more
core +2 more sources
The Experimental Study of PVTx Properties of Near Aeotropic Mixture Refrigerant R290/R134a
Zhileng xuebao, 2014 In order to get the thermophysical properties of mixed refrigerants R134a/R290, the author built PVTx experimental system with high accuracy. Based on the Burnett method, the author measured the PVT properties of R134a/R290 with mass fraction 50%/50%, 55%
Yang Xi, Qi Yingxia, Chen Wei, Zhang Hua
doaj +2 more sources
Can Structure Formation Influence the Cosmological Evolution? [PDF]
, 2001 The backreaction of structure formation influences the cosmological evolution equation for the homogenous and isotropic average metric. In a cold dark matter universe this effect leads only to small corrections unless a substantial fraction of matter is ...
A. Albrecht +25 more
core +2 more sources
Molecular Origins of Philicity: How Atomic Interactions Determine Miscibility and Diffusivity
ChemPhysChem, Volume 27, Issue 8, 28 April 2026.Alterations in the atomic philicity, as represented by Lennard–Jones parameters, determine the miscibility of an alkane‐perfluoroalkane system. Some parameters enhance mixing, while others enhance phase separation.We present a computational study on the microscopic origin of molecular philicity, which determines the miscibility and diffusivity of ...
Anna Luisa Upterworth +2 more
wiley +1 more source
Closed virial equations for hard parallel cubes andsquares
Natural Science, 2011 A correlation between maxima in virial coefficients (Bn), and "kissing" numbers for hard hyper-spheres up to dimension D=5, indicates a virial equation and close-packing relationship. Known virial coefficients up to B7, both for hard parallel cubes and squares, indicate that the limiting differences Bn-B(n-1) behave similar to spheres and disks, in the
openaire +3 more sources
Condensation Problem of the Gibbs Single-Phase Statistics on the Lennard-Jones Fluid Example [PDF]
Журнал нано- та електронної фізики, 2013 The accurate expression for the cluster expansion of the configuration integral of interacting particles is considered in the paper. The investigations of this expression indicate the beginning of the gas-liquid transition at the singularity points of ...
M.V. Ushcats
doaj
Pressure Dependence of Liquid Iron Viscosity From Machine‐Learning Molecular Dynamics
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.Abstract We have developed a machine‐learning potential that accurately models the behavior of iron under the conditions of Earth's core. By performing numerous nanosecond scale equilibrium molecular dynamics simulations, the viscosities of liquid iron for the whole outer core conditions are obtained with much less uncertainty.
Kai Luo, Xuyang Long, R. E. Cohen
wiley +1 more source