Results 21 to 30 of about 42,925 (209)

Modeling of multicomponent and multitemperature adsorption equilibria of water vapor and organic compounds on activated carbons

open access: yesAdsorption Science & Technology, 2016
Adsorption equilibria of the pure component and binary gaseous mixtures of water vapor and organic compound (toluene or n-butanol) on two selected activated carbons: Sorbonorit 4 and BPL 4×6 were studied.
Józef Nastaj   +2 more
doaj   +1 more source

Study on anisotropic effect correction term of Virial–Peng–Long equation of state

open access: yesAIP Advances, 2022
In order to correct the calculation deviation of the VPL (Virial–Peng–Long) equation of state (EOS) of gaseous detonation products, based on the L-J (Lennard-Jones) 6-12 spherical molecular potential, the change in the pressure–volume–temperature (PVT ...
Yue Peng, Xinping Long
doaj   +1 more source

An analytical model for the evolution of starless cores – I. The constant-mass case [PDF]

open access: yes, 2016
We propose an analytical model for the quasi-static evolution of starless cores confined by a constant external pressure, assuming that cores are isothermal and obey a spherically symmetric density distribution.
Pattle, Katherine M
core   +2 more sources

Thermophysical Properties of Light and Heavy Water from Second Virial Coefficient; Isotopic Substitution Effect [PDF]

open access: yesJournal of Nuclear Research and Applications
In this paper, some thermophysical properties of light and heavy water will be predicted and modeled using the virial equation of state (VEOS), and the effect of isotopic substitution will be studied.
M. Najafi, S. Ammari Allahyari
doaj   +1 more source

Variational Methods for Atoms and the Virial Theorem

open access: yesAtoms, 2022
In the case of the one-electron Dirac equation with a point nucleus, the virial theorem (VT) states that the ratio of the kinetic energy to potential energy is exactly −1, a ratio that can be an independent test of the accuracy of a computed solution ...
Charlotte Froese Fischer   +1 more
doaj   +1 more source

Morse oscillator equation of state: An integral equation theory based with virial expansion and compressibility terms

open access: yesHeliyon, 2022
A number of interaction energy types are employed in the vibrations studies, especially in the spectroscopic analysis, such as the harmonic oscillator and Morse oscillator.
Marwan Al-Raeei
doaj   +1 more source

The virial theorem and the dynamics of clusters of galaxies in the brane world models [PDF]

open access: yes, 2007
A version of the virial theorem, which takes into account the effects of the non-compact extra-dimensions, is derived in the framework of the brane world models.
C.-M. Chen   +11 more
core   +1 more source

Aqueous biphasic systems containing sodium L-tartrate dihydrate and PEG, experimental and application of extended thermodynamic models

open access: yesChemical Thermodynamics and Thermal Analysis, 2023
In the current study, liquid-liquid equilibrium data of aqueous two-phase systems (ATPS) containing polyethylene glycol at the different molecular weights (1000, 2000, 6000, and 8000) - sodium L-tartrate dihydrate - water at 298.15 K were obtained ...
Hamid Bakhshi   +2 more
doaj   +1 more source

Equation of state of a seven-dimensional hard-sphere fluid. Percus-Yevick theory and molecular dynamics simulations

open access: yes, 2015
Following the work of Leutheusser [Physica A 127, 667 (1984)], the solution to the Percus-Yevick equation for a seven-dimensional hard-sphere fluid is explicitly found.
de Haro, M. Lopez   +2 more
core   +1 more source

Substrate concentration dependence of the diffusion-controlled steady-state rate constant [PDF]

open access: yes, 2004
The Smoluchowski approach to diffusion-controlled reactions is generalized to interacting substrate particles by including the osmotic pressure and hydrodynamic interactions of the nonideal particles in the Smoluchoswki equation within a local-density ...
Allen M. P.   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy