Results 81 to 90 of about 66,767 (293)
Physical Review Research, 2020 We present a numerical routine (oscode) with a C++ and Python interface for the efficient solution of one-dimensional, second-order, ordinary differential equations with rapidly oscillating solutions.
F. J. Agocs +3 more
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, 2002 We present a procedure that allows the construction of the metric perturbations and electromagnetic four-potential, for gravitational and electromagnetic perturbations produced by sources in Kerr spacetime.
Amos Ori +11 more
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Singular perturbed problems in ordinary differential equations
Journal of Mathematical Analysis and Applications, 1992 The author uses his recent version of the generalized implicit theorem of Nash and Moser to solve perturbed periodic problems for equations like (1) \(u'+e\cdot f(u,u',u'',u''',t)=0\), in which perturbations contain two order higher derivatives than unperturbed equations.
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Homoclinic Solutions and Chaos in Ordinary Differential Equations with Singular Perturbations [PDF]
Transactions of the American Mathematical Society, 1998 Ordinary differential equations are considered which contain a singular perturbation. It is assumed that when the perturbation parameter is zero, the equation has a hyperbolic equilibrium and homoclinic solution. No restriction is placed on the dimension of the phase space or on the dimension of intersection of the stable and unstable manifolds.
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Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
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Advanced Engineering Materials, EarlyView.The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin +2 more
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Journal of Applied Fluid Mechanics, 2015 MHD boundary layer flow near stagnation point of linear stretching sheet with variable thermal conductivity are solved using He’s Homotopy Perturbation Method (HPM), which is one of the semi-exact method. Similarity transformation has been used to reduce
JHANKAL KUMAR ANUJ
doaj
Kuwait Journal of ScienceThis work introduces a novel compartmental epidemic model that integrates both deterministic and stochastic components to capture the dynamics of disease transmission under a voluntary and imperfect vaccination strategy.
Benasquar Mohammed +2 more
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Model selection in the reconstruction of regulatory networks from time-series data
BMC Research Notes, 2009 Background A widely used approach to reconstruct regulatory networks from time-series data is based on the first-order, linear ordinary differential equations.
Barillot Emmanuel, Novikov Eugene
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Moment transport equations for the primordial curvature perturbation
, 2011 In a recent publication, we proposed that inflationary perturbation theory can be reformulated in terms of a probability transport equation, whose moments determine the correlation properties of the primordial curvature perturbation.
A.A. Starobinsky +17 more
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