New strategy for predicting liquid–liquid equilibrium near critical point using global renormalization group theory
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DOI: 10.1002/aic.18738
Abstract: Classical liquid activity coefficient models, such as the nonrandom two‐liquid (NRTL) model, fail near the critical point of the liquid–liquid equilibrium (LLE), unless a highly nonlinear temperature dependency is introduced for the molecular interaction parameters.… read more here.
Keywords: liquid; critical point; liquid liquid; liquid equilibrium ... See more keywords
Quantum Phase Transition of a Quantum Mixed Spin Chain by Employing Density Matrix Renormalization Group Method
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DOI: 10.1002/andp.202100011
Abstract: The fidelity susceptibility and trace distance in the valence‐bond‐solid (VBS) transition of a quantum mixed spin chain is investigated, which consists of unit cells arrayed as 1/2‐1/2‐1‐1 with alternating Heisenberg antiferromagnetic exchange couplings, by using… read more here.
Keywords: quantum mixed; trace distance; quantum; critical point ... See more keywords
Explicit Frost-Kalkwarf type equations for calculation of vapour pressure of liquids from triple to critical point by the Adomian decomposition method†
Sign Up to like & getrecommendations! Published in 2017 at "Canadian Journal of Chemical Engineering"
DOI: 10.1002/cjce.22853
Abstract: The general form of explicit, analytical solution of the Frost-Kalkwarf equation was developed for the first time by means of the Adomian decomposition method as a reliable mathematical tool. The accuracy of the obtained formulas… read more here.
Keywords: triple critical; decomposition method; critical point; vapour pressure ... See more keywords
Towards universal substituent constants: Parameterizing bond critical point properties with electronegativity descriptors
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DOI: 10.1002/qua.27364
Abstract: The properties of substituents have long been quantified by their effect elsewhere in a molecule. Ideally, intrinsic properties detailing the true properties of a substituent would be used. These properties are ideally transferable between molecules,… read more here.
Keywords: towards universal; point; bond critical; point properties ... See more keywords
Critical Point Theory for the Lorentz Force Equation
Sign Up to like & getrecommendations! Published in 2019 at "Archive for Rational Mechanics and Analysis"
DOI: 10.1007/s00205-018-01352-7
Abstract: AbstractIn this paper we study the existence and multiplicity of solutions of the Lorentz force equation $$\left(\frac{q'}{\sqrt{1-|q'|^2}}\right)'=E(t,q) + q'\times B(t,q)$$q′1-|q′|2′=E(t,q)+q′×B(t,q)with periodic or Dirichlet boundary conditions. In Special Relativity, this equation models the motion of a… read more here.
Keywords: lorentz force; force equation; point theory; critical point ... See more keywords
New Comment on Gibbs Density Surface of Fluid Argon: Revised Critical Parameters, L. V. Woodcock, Int. J. Thermophys. (2014) 35, 1770–1784
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Thermophysics"
DOI: 10.1007/s10765-017-2331-6
Abstract: The author comments on an article by Woodcock (Int J Thermophys 35:1770–1784, 2014), who investigates the idea of a critical line instead of a single critical point using the example of argon. In the introduction,… read more here.
Keywords: comment; int thermophys; 1770 1784; woodcock int ... See more keywords
On Failures of van der Waals’ Equation at the Gas–Liquid Critical Point
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DOI: 10.1007/s10765-018-2444-6
Abstract: This comment is in response to a recent “new comment” by Umirzakov on the article “Gibbs density surface of fluid argon: revised critical parameters.” It was incorrectly asserted that van der Waals equation “proves” the… read more here.
Keywords: van der; waals equation; der waals; critical point ... See more keywords
Critical Point Equation on Almost Kenmotsu Manifolds
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DOI: 10.1007/s11253-020-01770-5
Abstract: We study the critical point equation $(CPE)$ conjecture on almost Kenmotsu manifolds. First, we prove that if a three-dimensional $(k,\mu)'$-almost Kenmotsu manifold satisfies the $CPE,$ then the manifold is either locally isometric to the product… read more here.
Keywords: point equation; almost kenmotsu; critical point; kenmotsu manifolds ... See more keywords
A critical point approach to multiplicity results for a fractional boundary value problem
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DOI: 10.1007/s40840-020-00886-y
Abstract: In this article, we establish criteria for the existence of at least three solutions of a fractional differential equation with Dirichlet boundary condition using variational methods and critical point theory. We discuss some consequences of… read more here.
Keywords: point approach; approach multiplicity; critical point; results fractional ... See more keywords
Critical Point Approaches to Generalized Yamabe Equations on Riemannian Manifolds and Applications to Emden–Fowler Problems
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DOI: 10.1007/s41980-019-00256-w
Abstract: In this work, we continue the study of the multiplicity results for generalized Yamabe equations on Riemannian manifolds arising from conformal Riemannian geometry, astrophysics, and in the theories of thermionic emission, isothermal stationary gas sphere,… read more here.
Keywords: emden fowler; yamabe equations; equations riemannian; riemannian manifolds ... See more keywords
Accuracy study and stability control of a property-table-based CFD strategy for modeling SCO2 compressors working near the critical point of the fluid
Sign Up to like & getrecommendations! Published in 2021 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2020.116222
Abstract: Abstract Supercritical CO2 (SCO2) as a working fluid can significantly reduce the compression work in a Brayton power cycle, especially when inlet conditions of the main compressors are set near the critical point of the… read more here.
Keywords: fluid; critical point; sco2 compressors; near critical ... See more keywords