Ponències/Comunicacions de congressos
http://hdl.handle.net/2117/3920
Sun, 17 Dec 2017 06:05:47 GMT2017-12-17T06:05:47ZLa matemática pura en los cursos militares de matemáticas de Pedro Lucuce (1739-44) y de Pedro Padilla (1753-56)
http://hdl.handle.net/2117/111695
La matemática pura en los cursos militares de matemáticas de Pedro Lucuce (1739-44) y de Pedro Padilla (1753-56)
Blanco Abellán, Mónica; Massa Esteve, Maria Rosa
Aritmetica y geometria
Mon, 11 Dec 2017 13:15:38 GMThttp://hdl.handle.net/2117/1116952017-12-11T13:15:38ZBlanco Abellán, MónicaMassa Esteve, Maria RosaAritmetica y geometriaCharacterizing path-like trees from linear configurations
http://hdl.handle.net/2117/111640
Characterizing path-like trees from linear configurations
López Masip, Susana Clara
Assume that we embed the path Pn as a subgraph of a 2-dimensional grid, namely, Pk¿Pl.
Given such an embedding, we consider the ordered set of subpaths L1, L2,...,Lm which are maximal straight segments in the embedding, and such that the end of Li is the beginning of Li+1.
Mon, 11 Dec 2017 09:01:44 GMThttp://hdl.handle.net/2117/1116402017-12-11T09:01:44ZLópez Masip, Susana ClaraAssume that we embed the path Pn as a subgraph of a 2-dimensional grid, namely, Pk¿Pl.
Given such an embedding, we consider the ordered set of subpaths L1, L2,...,Lm which are maximal straight segments in the embedding, and such that the end of Li is the beginning of Li+1.Physically based skeleton tracking
http://hdl.handle.net/2117/111547
Physically based skeleton tracking
López Gandía, Axel Javier; Susín Sánchez, Antonio
Skeleton tracking has multiple applications such as games, virtual reality, motion capture and more. One of the main challenges of pose detection is to be able to obtain the best possible quality with a cheap and easy-to-use device. In this work we propose a physically based method to detect errors and tracking issues which appear when we use low cost tracking devices such as Kinect. Therefore, we can correct the animation in order to obtain a smoother movement. We have implemented the Newton- Euler Algorithm, which allow us to compute the internal forces involved in a skeleton. In a common movement, forces are usually smooth without sudden variations. When the tracking yields poor results or invalid poses the internal forces become very large with a lot of variation. This allow us to detect when the tracking system fails and the animation needs to be inferred through different methods.
Tue, 05 Dec 2017 09:07:09 GMThttp://hdl.handle.net/2117/1115472017-12-05T09:07:09ZLópez Gandía, Axel JavierSusín Sánchez, AntonioSkeleton tracking has multiple applications such as games, virtual reality, motion capture and more. One of the main challenges of pose detection is to be able to obtain the best possible quality with a cheap and easy-to-use device. In this work we propose a physically based method to detect errors and tracking issues which appear when we use low cost tracking devices such as Kinect. Therefore, we can correct the animation in order to obtain a smoother movement. We have implemented the Newton- Euler Algorithm, which allow us to compute the internal forces involved in a skeleton. In a common movement, forces are usually smooth without sudden variations. When the tracking yields poor results or invalid poses the internal forces become very large with a lot of variation. This allow us to detect when the tracking system fails and the animation needs to be inferred through different methods.Isolated cycles of critical random graphs
http://hdl.handle.net/2117/111536
Isolated cycles of critical random graphs
Noy Serrano, Marcos; Rasendrahasina, Vonjy; Ravelomanana, Vlady; Rué Perna, Juan José
Consider the Erdos-Renyi random graph G(n, M) built with n vertices and
M edges uniformly randomly chosen from the set of n2 edges. Let L be a set of positive integers. For any number of edges M 6n/2 + O(n 2/3 ), we compute – via analytic combinatorics – the number of isolated cycles of G(n, M) whose length is in L.
Mon, 04 Dec 2017 12:51:16 GMThttp://hdl.handle.net/2117/1115362017-12-04T12:51:16ZNoy Serrano, MarcosRasendrahasina, VonjyRavelomanana, VladyRué Perna, Juan JoséConsider the Erdos-Renyi random graph G(n, M) built with n vertices and
M edges uniformly randomly chosen from the set of n2 edges. Let L be a set of positive integers. For any number of edges M 6n/2 + O(n 2/3 ), we compute – via analytic combinatorics – the number of isolated cycles of G(n, M) whose length is in L.Características de la siniestralidad laboral del sector minero español de productos de cantera y rocas ornamentales en los períodos 2003-2008 y 2009-2014
http://hdl.handle.net/2117/110821
Características de la siniestralidad laboral del sector minero español de productos de cantera y rocas ornamentales en los períodos 2003-2008 y 2009-2014
Sanmiquel Pera, Lluís; Bascompta Massanes, Marc; Anticoi Sudzuki, Hernán Francisco; Rossell Garriga, Josep Maria; Freijo Álvarez, Modesto
Fri, 17 Nov 2017 10:34:15 GMThttp://hdl.handle.net/2117/1108212017-11-17T10:34:15ZSanmiquel Pera, LluísBascompta Massanes, MarcAnticoi Sudzuki, Hernán FranciscoRossell Garriga, Josep MariaFreijo Álvarez, ModestoCombined heat and power using high temperature proton exchange membrane fuel cells for comfort applications
http://hdl.handle.net/2117/110267
Combined heat and power using high temperature proton exchange membrane fuel cells for comfort applications
Sanz i López, Víctor; Costa Castelló, Ramon; Batlle Arnau, Carles
Global concerns about nowadays’ energy shortage problems as well as climate change eects have encouraged alternatives to classical energy sources such as fossil fuels and nuclear power plants. In this context, combined heat and power is presented as a useful option due to its ability of generating both electrical and thermal energy more eciently than conventional methods. Regarding this, high temperature proton exchange membrane fuel cells are not only a reliable way of implementing combined heat and power systems, but also a better solution in terms of energy conversion eciency and greenhouse gases emissions reduction. Therefore, high temperature proton exchange membrane fuel cells are being installed around the world and policies encouraging its utilisation are being promoted.
Fri, 10 Nov 2017 13:00:50 GMThttp://hdl.handle.net/2117/1102672017-11-10T13:00:50ZSanz i López, VíctorCosta Castelló, RamonBatlle Arnau, CarlesGlobal concerns about nowadays’ energy shortage problems as well as climate change eects have encouraged alternatives to classical energy sources such as fossil fuels and nuclear power plants. In this context, combined heat and power is presented as a useful option due to its ability of generating both electrical and thermal energy more eciently than conventional methods. Regarding this, high temperature proton exchange membrane fuel cells are not only a reliable way of implementing combined heat and power systems, but also a better solution in terms of energy conversion eciency and greenhouse gases emissions reduction. Therefore, high temperature proton exchange membrane fuel cells are being installed around the world and policies encouraging its utilisation are being promoted.Linear hamiltonian control systems. An approach under linear algebra point of view
http://hdl.handle.net/2117/110146
Linear hamiltonian control systems. An approach under linear algebra point of view
García Planas, María Isabel; Chanes Espigares, Antonio
Hamiltonian systems model a number of important problems in theoretical physics, mechanics, fluid dynamics and others disciplines. Many important physical and engineering processes can be described by a suitable linear Hamiltonian formalism. The properties of Hamiltonian systems like conservation of energy or volume in the phase space leads specific dynamical features. This paper approaches the study, analysis and characterization of linear Hamiltonian systems through the linear algebra
Wed, 08 Nov 2017 12:33:28 GMThttp://hdl.handle.net/2117/1101462017-11-08T12:33:28ZGarcía Planas, María IsabelChanes Espigares, AntonioHamiltonian systems model a number of important problems in theoretical physics, mechanics, fluid dynamics and others disciplines. Many important physical and engineering processes can be described by a suitable linear Hamiltonian formalism. The properties of Hamiltonian systems like conservation of energy or volume in the phase space leads specific dynamical features. This paper approaches the study, analysis and characterization of linear Hamiltonian systems through the linear algebraTriangular matrices and combinatorial recurrences
http://hdl.handle.net/2117/109153
Triangular matrices and combinatorial recurrences
Encinas Bachiller, Andrés Marcos; Jiménez Jiménez, M. Jose
Wed, 25 Oct 2017 12:18:33 GMThttp://hdl.handle.net/2117/1091532017-10-25T12:18:33ZEncinas Bachiller, Andrés MarcosJiménez Jiménez, M. JoseAdvanced computational design of shared tuned mass-inerter dampers for vibration control of adjacent multi-story structures
http://hdl.handle.net/2117/108937
Advanced computational design of shared tuned mass-inerter dampers for vibration control of adjacent multi-story structures
Palacios Quiñonero, Francisco; Rubió Massegú, Josep; Rossell Garriga, Josep Maria; Karimi, Hamid Reza
Inerters are a novel type of mechanical actuation devices that are able to produce large inertial forces with a relatively small mass. Due to this property, inerters can provide an effective solution to the main drawbacks of tuned mass-dampers and, consequently, they are gaining an increasing relevance in the field of passive structural vibration control. In this paper, a computational design strategy for inerter-based vibration control schemes is presented. The proposed approach combines a computationally effective reduced-frequency H8 cost-function and a constrained global optimization solver to design different configurations of a shared tuned mass-inerter-damper system for the seismic protection of a multi-story two-building structure. To assess the effectiveness of the obtained configurations, the frequency characteristics and the seismic response of the interstory drifts and interbuilding approaches are investigated with positive results.
Fri, 20 Oct 2017 15:20:42 GMThttp://hdl.handle.net/2117/1089372017-10-20T15:20:42ZPalacios Quiñonero, FranciscoRubió Massegú, JosepRossell Garriga, Josep MariaKarimi, Hamid RezaInerters are a novel type of mechanical actuation devices that are able to produce large inertial forces with a relatively small mass. Due to this property, inerters can provide an effective solution to the main drawbacks of tuned mass-dampers and, consequently, they are gaining an increasing relevance in the field of passive structural vibration control. In this paper, a computational design strategy for inerter-based vibration control schemes is presented. The proposed approach combines a computationally effective reduced-frequency H8 cost-function and a constrained global optimization solver to design different configurations of a shared tuned mass-inerter-damper system for the seismic protection of a multi-story two-building structure. To assess the effectiveness of the obtained configurations, the frequency characteristics and the seismic response of the interstory drifts and interbuilding approaches are investigated with positive results.Characterizing identifying codes through the spectrum of a graph or digraph
http://hdl.handle.net/2117/108920
Characterizing identifying codes through the spectrum of a graph or digraph
Balbuena Martínez, Maria Camino Teófila; Dalfó Simó, Cristina; Martínez Barona, Berenice
Fri, 20 Oct 2017 12:13:09 GMThttp://hdl.handle.net/2117/1089202017-10-20T12:13:09ZBalbuena Martínez, Maria Camino TeófilaDalfó Simó, CristinaMartínez Barona, Berenice