Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Francesca Rapetti"'
Publikováno v:
J, Vol 5, Iss 1, Pp 52-63 (2022)
We recall the classical tree-cotree technique in magnetostatics. (1) We extend it in the frame of high-order finite elements in general domains. (2) We focus on its connection with the question of the invertibility of the final algebraic system arisi
Externí odkaz:
https://doaj.org/article/4c7aadc8ae9e476abe5d2c4999b01e32
Publikováno v:
Journal of Mathematics in Industry, Vol 8, Iss 1, Pp 1-24 (2018)
Abstract The fundamental concept of magnetically confined nuclear fusion devices is the magnetohydrodynamic (MHD) equilibrium: the pressure gradient due to highly energetic charged particles is balanced by the Lorenz force due to strong magnetic fiel
Externí odkaz:
https://doaj.org/article/769d06973a0e4bfc8a2867b11a0a41be
Autor:
Barbara Cambiaghi, Francesco Vasques, Onnen Mörer, Christian Ritter, Tommaso Mauri, Nils Kunze-Szikszay, Karin Holke, Francesca Collino, Giorgia Maiolo, Francesca Rapetti, Elias Schulze-Kalthoff, Tommaso Tonetti, Günter Hahn, Michael Quintel, Luciano Gattinoni
Publikováno v:
Intensive Care Medicine Experimental, Vol 5, Iss 1, Pp 1-11 (2017)
Abstract Background Severe hypoperfusion can cause lung damage. We studied the effects of regional perfusion block in normal lungs and in the lungs that had been conditioned by lavage with 500 ml saline and high V T (20 ml kg−1) ventilation. Method
Externí odkaz:
https://doaj.org/article/61970e4545b04c20a9865beaf552b3fa
Autor:
Luciano Gattinoni, John J. Marini, Francesca Collino, Giorgia Maiolo, Francesca Rapetti, Tommaso Tonetti, Francesco Vasques, Michael Quintel
Publikováno v:
Critical Care, Vol 21, Iss 1, Pp 1-11 (2017)
Abstract The adverse effects of mechanical ventilation in acute respiratory distress syndrome (ARDS) arise from two main causes: unphysiological increases of transpulmonary pressure and unphysiological increases/decreases of pleural pressure during p
Externí odkaz:
https://doaj.org/article/6f5fb3a5a014459e8ae9657474a2805c
Publikováno v:
Oberwolfach Reports. 19:1603-1659
Publikováno v:
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields. 36
Publikováno v:
Journal of Computational and Applied Mathematics. 427:115117
It is well known that Lagrange interpolation based on equispaced nodes can yield poor results. Oscillations may appear when using high degree polynomials. For functions of one variable, the most celebrated example has been provided by Carl Runge in 1
Publikováno v:
Numerical Algorithms
Numerical Algorithms, Springer Verlag, In press, ⟨10.1007/s11075-020-01022-4⟩
Numerical Algorithms, Springer Verlag, In press, ⟨10.1007/s11075-020-01022-4⟩
International audience; We consider the flow of a viscous incompressible fluid through a rigid homogeneous porous medium. We propose a high-order discretisation based on Whitney finite elements, namely, Raviart-Thomas finite elements of degree r + 1
Publikováno v:
Computers & Mathematics with Applications
Computers & Mathematics with Applications, 2019, 78 (9), pp.2961-2972. ⟨10.1016/j.camwa.2019.03.006⟩
Computers & Mathematics with Applications, Elsevier, 2019, 78 (9), pp.2961-2972. ⟨10.1016/j.camwa.2019.03.006⟩
Computers & Mathematics with Applications, 2019, 78 (9), pp.2961-2972. ⟨10.1016/j.camwa.2019.03.006⟩
Computers & Mathematics with Applications, Elsevier, 2019, 78 (9), pp.2961-2972. ⟨10.1016/j.camwa.2019.03.006⟩
International audience; High order Whitney finite element spaces generally lack natural choices of bases but they do have spanning families. In these pages, we recall such a family on simplicial meshes and we prove theoretically its effectiveness. We
Autor:
Francesca Rapetti
Publikováno v:
IEEE Journal on Multiscale and Multiphysics Computational Techniques. 4:348-355
We consider a family of geometrical objects first evocated around 1952 by Andre Weil with reference to the work of de Rham, but deeply analyzed in 1957 by Whitney (Hassler Whitney, 1907–1989, one of the masters of differential geometry), thus known