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Development and application of a three-parameter RK-PR equation of state
(Elsevier Science, 2005-05)
In this work, we confirm the somehow previously expressed but not widespread idea that the limitations of cubic equations of state like Soave-Redlich-Kwong equation (SRK) or Peng-Robinson equation (PR) are a consequence ...
On coupled transversal and axial motions of two beams with a joint
(Academic Press Inc Elsevier Science, 2008-03)
In this paper we develop and analyze a mathematical model for combined axial and transverse motions of two Euler-Bernoulli beams coupled through a joint composed of two rigid bodies. The motivation for this problem comes ...
Explicit solutions for a non-classical heat conduction problem for a semi-infinite strip with a non-uniform heat source
(Springer, 2015-12)
A non-classical initial and boundary value problem for a non-homogeneous one-dimensional heat equation for a semi-infinite material with a zero temperature boundary condition is studied. It is not a standard heat conduction ...
Analysis of solutions of differential equations of vibratory systems with varied external forces
(Universidade Federal de Santa Maria, 2020)
Accurate eigenvalues of the Schrödinger equation with the potential V(r)=V0rα
(IOP Publishing, 2019-10)
We calculate accurate eigenvalues of the Schrödinger equation with the potential V(r)=V0rα, α ≥ -1, V 0 α > 0. We resort to the Riccati-Padé method that is based on a rational approximation to the logarithmic derivative ...
An Euler-Lagrange Equation only Depending on Derivatives of Caputo for Fractional Variational Problems with Classical Derivatives
(International Academic Press, 2020-05-18)
In this paper we present advances in fractional variational problems with a Lagrangian depending on Caputo fractional and classical derivatives. New formulations of the fractional Euler-Lagrange equation are shown for the ...
On the Solvability of the Periodically Forced Relativistic Pendulum Equation on Time Scales
(arXiv.org, 2020-05)
We study some properties of the range of the relativistic pendulum operator P, that is, the set of possible continuous T-periodic forcing terms p for which the equation P x = p admits a T-periodic solution over a T - ...
The contracted Schrödinger equation methodology: Study of the third-order correlation effects
(Springer, 2007-09)
In this paper we analyse the relevant role played by the third-order correlation terms in the contracted Schrödinger equation (CSE) methodology. The quality of the approximations used when evaluating these terms influence ...