Results 11 to 20 of about 2,189 (143)
A CONSTRUÇÃO DE UM INSTITUTO DE PESQUISAS MATEMÁTICAS NOS TRÓPICOS – O IMPA
Revista Brasileira de História da Matemática, 2020 Descreve a criação do Instituto de Matemática Pura e Aplicada (IMPA), atualmente denominado Associação Instituto Nacional de Matemática Pura e Aplicada, no Rio de Janeiro, em 1952, como primeiro Instituto dedicado exclusivamente à pesquisa matemática no ...
Circe Mary Silva da Silva
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CFD simulation of a hyperloop capsule inside a closed environment
Results in Engineering, 2021 One of the most restrictive conditions in ground transportation is traveling through a tunnel at high speed. In those conditions waves are propagated, increasing the pressure upstream the object, and so, the drag compared to the open flow case.
Federico Lluesma-Rodríguez +2 more
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The Manhattan product of digraphs
Electronic Journal of Graph Theory and Applications, 2013 We study the main properties of a new product of bipartite digraphs which we call Manhattan product. This product allows us to understand the subjacent product in the Manhattan street networks and can be used to built other networks with similar good ...
Francesc Comellas +2 more
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Rocket plume URANS simulation using OpenFOAM
Results in Engineering, 2019 A key aspect in the launch environment of a space vehicle is the generation and propagation of noise, due to its effect in the payload. Obtaining experimental measures is an extremely difficult, so CFD techniques appear as a useful tool to estimate both ...
Mara S. Escarti-Guillem +2 more
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Electronic Journal of Qualitative Theory of Differential Equations, 2020 We study the size of the global attractor for a delay differential equation with unimodal feedback. We are interested in extending and complementing a dichotomy result by Liz and Röst, which assumed that the Schwarzian derivative of the nonlinear ...
Daniel Franco +3 more
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Mathematical Analysis and Numerical Simulation in Magnetic Recording
Mathematical Modelling and Analysis, 2014 The head-tape interaction in magnetic recording is described in the literature by a coupled system of partial differential equations. In this paper we study the limit case of the system which reduces the problem to a second order nonlocal equation on a ...
Ana Isabel Munoz, Jose Ignacio Tello
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Influence of particle size in silo discharge
EPJ Web of Conferences, 2017 Recently Janda et al. [Phys. Rev. Lett. 108, 248001 (2012)] reported an experimental study where it was measured the velocity and volume fraction fields of 1 mm diameter stainless steel beads in the exit of a two-dimensional silo.
Gella Diego, Maza Diego, Zuriguel Iker
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Revista de Educación Matemática, 2023 El presente artículo muestra un ejemplo de trabajo interdisciplinario entre la matemática aplicada, la ecología y la docencia. En el mismo se detalla el proceso de construcción de un modelo poblacional para las morsas del Pacífico (Odobenus rosmarus), a ...
Pehuén Barzola Elizagaray +9 more
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Electronic Journal of Qualitative Theory of Differential Equations, 2018 We present a novel approach to study the local and global stability of families of one-dimensional discrete dynamical systems, which is especially suitable for difference equations obtained as a convex combination of two topologically conjugated maps ...
Daniel Franco, Juan Perán, Juan Segura
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The Canadian Journal of Chemical Engineering, EarlyView.Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas +2 more
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