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Gibbs free energy and Helmholtz free energy for a three-dimensional Ising-like model [PDF]

open access: diamondCondensed Matter Physics, 2011
The critical behavior of a 3D Ising-like system is studied at the microscopic level of consideration. The free energy of ordering is calculated analytically as an explicit function of temperature, an external field and the initial parameters of the model.
R.V. Romanik, M.P. Kozlovskii
doaj   +14 more sources

Bound state densities and the Helmholtz free energy [PDF]

open access: diamondEPJ Web of Conferences, 2012
Bohr's conception of the compound nucleus is based on the idea of ‘longlived’ nuclear states in which all single particles are bound. We briefly discuss the properties of the density of bound states and then use two prescriptions, that of Brack and ...
Souza S.R.   +4 more
doaj   +3 more sources

Fast multiple-fluid simulation using Helmholtz free energy [PDF]

open access: greenACM Transactions on Graphics, 2015
Multiple-fluid interaction is an interesting and common visual phenomenon we often observe. In this paper, we present an energy-based Lagrangian method that expands the capability of existing multiple-fluid methods to handle various phenomena, such as extraction, partial dissolution, etc.
Jian Chang, Bo Ren, Shi-Min Hu
exaly   +3 more sources

Temperature dependence of the Helmholtz free energy of liquid alkali metals

open access: diamondBibechana, 2012
The Gibbs-Bogoliubov variational method has been considered to study the Helmholtz free energy of liquid alkali metals (Na, K, Rb and Cs) as a function of temperature, using Heine Abarenkov type model potential with Hubbard-Sham exchange and correlation
BK Singh, Sudhir Singh
doaj   +6 more sources

Electron-phonon interactions and Helmholtz free energy in confined systems: Advancing low-dimensional superconductors for quantum technologies

open access: goldResults in Physics
The thermodynamic and superconducting properties of low-dimensional superconductors are profoundly influenced by electron–phonon interactions, which play a critical role in determining the Helmholtz free energy.
Nitin Pratap Singh   +2 more
doaj   +4 more sources

Vibrational Internal Energy And Helmholtz Free Energy Of Metals

open access: diamondTurkish Journal of Computer and Mathematics Education (TURCOMAT), 2021
This article revealed an interesting issue on vibrational internal energy and Helmholtz free energy of metals. The relationship existing between the lateral strain and axial strain was taking into consideration during computation. Vibrational internal energy and Helmholtz free energy of metals was computed and studied based on the theory of free ...
Et. al. G.E. Adesakin
openalex   +3 more sources

A Helmholtz Free Energy Equation of State of CO2-CH4-N2 Fluid Mixtures (ZMS EOS) and Its Applications [PDF]

open access: goldApplied Sciences, 2023
An equation of state (EOS) of CH4-N2 fluid mixtures in terms of Helmholtz free energy has been developed by using four mixing parameters, which can reproduce the pressure-volume-temperature-composition (PVTx) and vapor-liquid equilibrium (VLE) properties
Jia Zhang, Shide Mao, Zeming Shi
doaj   +2 more sources

NMR chemical shift as analytical derivative of the Helmholtz free energy [PDF]

open access: greenThe Journal of Chemical Physics, 2013
We present a theory for the temperature-dependent nuclear magnetic shielding tensor of molecules with arbitrary electronic structure. The theory is a generalization of Ramsey's theory for closed-shell molecules. The shielding tensor is defined as a second derivative of the Helmholtz free energy of the electron system in equilibrium with the applied ...
Willem Van den Heuvel   +1 more
openalex   +5 more sources

A complete equation of state for polyethylene based on Helmholtz free energy

open access: hybridActa Physica Sinica, 2017
Polyethylene (PE) is an important kind of plastic, which plays a significant role as the shell material of the fuel capsule, light weight structural element subjected to intense mechanical impact and explosion load. And it is well accepted that semi-empirical three-term equation of state (EOS) is one of the most widely used EOSs in practical work ...
Zhang Xu-Ping   +6 more
openalex   +2 more sources

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