Results 211 to 220 of about 124,528 (252)
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Computational Aspects Of Numerical Integration Based On Optimal Nodal Splines
International Journal of Computer Mathematics, 2003The numerical construction of nodal spline integration rules is considered for the evaluation both of weakly singular integrals and of certain integrals defined in the Hadamard finite part sense. A bound for the quadrature sum condition number is also given.
DAGNINO, Catterina, DEMICHELIS, Vittoria
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Meshfree and finite element nodal integration methods
International Journal for Numerical Methods in Engineering, 2007AbstractNodal integration can be applied to the Galerkin weak form to yield a particle‐type method where stress and material history are located exclusively at the nodes and can be employed when using meshless or finite element shape functions. This particle feature of nodal integration is desirable for large deformation settings because it avoids the ...
Puso, M. A. +3 more
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Nodally integrated finite elements
2010Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 07. bis 09.07.2009, Bauhaus-Universität Weimar, vol.
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Integration of absolute nodal elements into multibody system
Nonlinear Dynamics, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yu, Lei +3 more
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Nodal Spline Integration Rules for Certain 2-D Cauchy Principal Value Integrals
International Journal of Computer Mathematics, 2002In this paper we consider integration rules based on products of one-dimensional nodal spline quadratures for the numerical evaluation of 2-D singular integrals defined in the Hadamard finite part sense. We derive convergence results and error bounds. Some numerical tests are also presented.
DAGNINO, Catterina, DEMICHELIS, Vittoria
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Nodal-Type Newton-Cotes Rules for Fractional Hypersingular Integrals
East Asian Journal on Applied Mathematics, 2018Summary: Nodal-type Newton-Cotes rules for fractional hypersingular integrals based on the piecewise \(k\)-th order Newton interpolations are proposed. A general error estimate is first derived on quasi-uniform meshes and then we show that the even-order rules exhibit the superconvergence phenomenon -- i.e.
Gao, Yan +4 more
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Integrated Positron-Emission Tomography for Nodal Staging in Lung Cancer
Asian Cardiovascular and Thoracic Annals, 2009As lymph node metastasis is the most important factor determining the surgical outcome of lung cancer, we evaluated the accuracy and clinical usefulness of functional imaging with integrated positron-emission tomography and computed tomography in nodal staging of non-small-cell lung cancer.
Hyun Joo, Lee +5 more
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Locking‐free continuum displacement finite elements with nodal integration
International Journal for Numerical Methods in Engineering, 2008AbstractAn assumed‐strain finite element technique is presented for linear, elastic small‐deformation models. Weighted residual method (reminiscent of the strain–displacement functional) is used to weakly enforce the balance equation with the natural boundary condition and the kinematic equation (the strain–displacement relationship).
Krysl, P., Zhu, B.
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Nodal integral method solutions for Bénard natural convection
International Journal for Numerical Methods in Fluids, 1990AbstractThe nodal integral method is a relatively new numerical technique that has been used recently to solve both static and dynamic multidimensional problems in heat transfer, fluid flow and neutron transport. The method offers significant advantages in terms of stability, accuracy and efficiency over conventional finite elements when the problem ...
Gary L. Wilson, Roger A. Rydin
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A Voronoi-Based Nodal Integrated FEM Simulation of Extrusion Process
AIP Conference Proceedings, 2011The finite element method was successfully applied for the simulation of several forming processes. However, it does not represent an absolute reference point because of the high transformations in the computational domain in some real processes. These induce a significant worsening of the results caused by the mesh distortions.
Greco, F. +5 more
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