نتایج جستجو برای: inverse semi
تعداد نتایج: 230971 فیلتر نتایج به سال:
The results from a series of experiments performed with a novel inverse-kinematics approach using the experimental installations of GSI, Darmstadt, gave a new global insight into the nuclide production in fission reactions. Combined with previous results, this large body of data has been used to develop a new semi-empirical macroscopic-microscopic fission model.
This paper obtains the exact 1-soliton solution of the complex GinzburgLandau equation with power law nonlinearity that governs the propagation of solitons through nonlinear optical fibers. The technique that is used to carry out the integration of this equation is He’s semi-inverse variational principle.
The spin polarization of Sb overlayers on the semi-Heusler alloy NiMnSb is investigated in terms of the Landau-Ginzburg approach. The half-metallic semi-Heusler alloy NiMnSb acts as a ferromagnetic perturbation and induces a spin polarization in the semimetallic Sb overlayer. Using a Gaussian approximation, the propagation of the spin perturbation in the overlayer is calculated. The results are...
In this paper we study solutions of an inverse problem for a global shallow water model controlling its initial conditions speci ed from the 40-yr ECMWF Re-Analysis (ERA-40) datasets, in presence of full or incomplete observations being assimilated in a time interval(window of assimilation) with or without background error covariance terms. As an extension of the work in Chen et al., 2009, we a...
In this paper we study solutions of an inverse problem for a global shallow water model controlling its initial conditions speci ed from the 40-yr ECMWF Re-Analysis (ERA-40) datasets, in presence of full or incomplete observations being assimilated in a time interval (window of assimilation) with or without background error covariance terms. As an extension of the work in Chen et al., 2009, we ...
By the semi-inverse method proposed by He, a Lagrangian is established for the large deflection problem of thin circular plate. Ritz method is used to obtain an approximate analytical solution of the problem. First order approximate solution is obtained, which is similar to those in open literature. By Mathematica a more accurate solution can be deduced. 2002 Elsevier Science Inc. All rights re...
We show that a nite graph that is the inverse limit with a single surjective upper semi-continuous set valued function f : [0, 1] → 2[0,1] is either an arc or a simple triod. It is not known if there is such a simple triod.
This paper carries out the integration of the resonant nonlinear Schrödinger’s equation in presence of perturbation terms that are considered with full nonlinearity. The three types of nonlinear media are studied. They are the cubic nonlinearity, power law and log law nonlinearity. The semi-inverse variational principle is applied to extract the analytical soliton solution.
By the semi-inverse method, a variational principle is obtained for the Thomas– Fermi equation, then the Ritz method is applied to solve an analytical solution, which is a much simpler and more efficient method. 2002 Elsevier Science Inc. All rights reserved.
We study the inverse scattering problem for the three dimensional nonlinear Schrödinger equation with the Yukawa potential. The nonlinearity of the equation is nonlocal. We reconstruct the potential and the nonlinearity by the knowledge of the scattering states. Our result is applicable to reconstructing the nonlinearity of the semi-relativistic Hartree equation.
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