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A squatting based framework to enhance network virtualization allocation in optical networks
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper introduces a framework to enhance network virtualization allocation in optical networks. A new control plane approach for the new generation of electrical and optical networks technologies is presented. To ... -
A Ssimulation model of passenger flow at the airport security system
(Universitat Politècnica de Catalunya, 2023-10-06)
Treball Final de Grau
Accés obertIn this document an agent-based simulation is developed in order to study the Security Screening Check Point at Airports. The proposal simulation environment developed in Netlogo analyse the flow of the passengers along ... -
A stabilised displacement–volumetric strain formulation for nearly incompressible and anisotropic materials
(2021-04)
Article
Accés obertThe simulation of structural problems involving the deformations of volumetric bodies is of paramount importance in many areas of engineering. Although the use of tetrahedral elements is extremely appealing, tetrahedral ... -
A stabilised Petrov–Galerkin formulation for linear tetrahedral elements in compressible, nearly incompressible and truly incompressible fast dynamics
(Elsevier, 2014-07-01)
Article
Accés obertA mixed second order stabilised Petrov–Galerkin finite element framework was recently introduced by the authors (Lee et al., 2014) [46]. The new mixed formulation, written as a system of conservation laws for the linear ... -
A stability theorem in nonlinear bilevel programming
(Institut d'Estadística de Catalunya, 1996)
Article
Accés obertIn this short paper, we are concerned with the stability of nonlinear bilevel programs. A stability problem is proven and an example is given to illustrate this theorem. -
A stabilized finite element method for incompressible viscous flows using a finite increment calculus formulation
(1999-02)
Report de recerca
Accés obertA stabilized finite element formulation for incompressible viscous flows is derived. The starting point are the modified Navier-Stokes equations incorporating naturally the necessary stabilization terms via a finite increment ... -
A stabilized finite element method for the mixed wave equation in an ALE framework with application to diphthong production
(2016-01)
Article
Accés obertWorking with the wave equation in mixed rather than irreducible form allows one to directly account for both, the acoustic pressure field and the acoustic particle velocity field. Indeed, this becomes the natural option ... -
A stabilized finite element method for the two-field and three-field Stokes eigenvalue problems
(2016-10)
Article
Accés obertIn this paper, the stabilized finite element approximation of the Stokes eigenvalue problems is considered for both the two-field (displacement–pressure) and the three-field (stress–displacement–pressure) formulations. The ... -
A stabilized formulation with maximum entropy meshfree approximants for viscoplastic flow simulation in metal forming
(2015-07-01)
Article
Accés obertThe finite element method is the reference technique in the simulation of metal forming and provides excellent results with both Eulerian and Lagrangian implementations. The latter approach is more natural and direct but ... -
A stabilized mixed finite element approximation for incompressible finite strain solid dynamics using a total Lagrangian formulation
(2020-08)
Article
Accés obertIn this work a new methodology for both the nearly and fully incompressible transient finite strain solid mechanics problem is presented. To this end, the momentum equation is complemented with a constitutive law for the ... -
A stabilized mixed implicit Material Point Method for non-linear incompressible solid mechanics
(Springer, 2019-06)
Article
Accés obertIn this work a stabilized mixed formulation for the solution of non-linear solid mechanics problems in nearly-incompressible conditions is presented. In order to deal with high material deformation, an implicit Material ... -
A stabilized mixed three-field formulation for stress accurate analysis including the incompressible limit in finite strain solid dynamics
(2023)
Article
Accés obertIn this work a new methodology for finite strain solid dynamics problems for stress accurate analysis including the incompressible limit is presented. In previous works, the authors have presented the stabilized mixed ... -
A stable and efficient domain decomposition method for maxwell’s equations with uncertainty
(CIMNE, 2017)
Text en actes de congrés
Accés obertGeophysical monitoring of CO2 sequestration using electromagnetics is prone to large uncertainties. To include uncertainty in Maxwell’s equations, we use the polynomial chaos framework and project the equations onto ... -
A stable mesh-independent approach for numerical modelling of structured soils at large strains
(Elsevier, 2019-12)
Article
Accés obertWe describe the large strain implementation of an elasto-plastic model for structured soils into G-PFEM, a code developed for geotechnical simulations using the Particle Finite Element Method. The constitutive model is ... -
A stable XFEM formulation for multi-phase problems enforcing the accuracy of the fluxes through Lagrange multipliers
(2013-11-02)
Article
Accés obertWhen applied to diffusion problems in a multi-phase setup, the popular extended finite element method (XFEM) strategy suffers from an inaccurate representation of the local fluxes in the vicinity of the interface. The XFEM ... -
A stable, implicit time integration scheme for discrete element method and contact problems in dynamics
(CIMNE, 2017)
Text en actes de congrés
Accés obertThe field of applications for Discrete Element Method is constantly growing, enabling the simulation of granular matter. However state of the art integration schemes are mostly adopted from other methods, which results in ... -
A Stackelberg game for modelling asymmetric users' behavior in grid scheduling
(Institute of Electrical and Electronics Engineers (IEEE), 2010)
Text en actes de congrés
Accés obertIn traditional distributed computing the users and owners of the computational resources usually belong to the same administrative domain. Therefore all users are equally entitled to use the resources. The situation is ... -
A Stackelberg game to derive the limits of energy savings for the allocation of data center resources
(Elsevier, 2013-01)
Article
Accés restringit per política de l'editorialEnergy-related costs are becoming one of the largest contributors to the overall cost of operating a data center, whereas the degree of data center utilization continues to be very low. An energy-aware dynamic provision ... -
A staggered high-dimensional Proper Generalised Decomposition for coupled magneto-mechanical problems with application to MRI scanners
(2020-10-01)
Article
Accés obertManufacturing new Magnetic Resonance Imaging (MRI) scanners represents a computational challenge to industry, due to the large variability in material parameters and geometrical configurations that need to be tested during ... -
A state of the art review of modal-based damage detection in bridges: development, challenges, and solutions
(Multidisciplinary Digital Publishing Institute, 2017-05)
Article
Accés obertTraditionally, damage identification techniques in bridges have focused on monitoring changes to modal-based Damage Sensitive Features (DSFs) due to their direct relationship with structural stiffness and their spatial ...