Ara es mostren els items 39815-39834 de 91060

  • EXTRAMURS : recuperació d'un paisatge industrial als suburbis de Barcelona 

    Poch Mateu, Antoni (Universitat Politècnica de Catalunya, 2014-01)
    Projecte/Treball Final de Carrera
    Accés obert
  • Extrapolations of the fusion performance in JET 

    Gallart, Daniel; Mantsinen, M.J.; Garzotti, L.; Challis, C.; Garcia, J.; Gutiérrez, A.; Sáez, X. (Barcelona Supercomputing Center, 2015-05-05)
    Text en actes de congrés
    Accés obert
    n preparation of the forthcoming high power campaign with the reactor-relevant deuterium-tritium (DT) fuel mixture in the Joint European Torus (JET), significant efforts are being devoted to DT scenario extrapolation using ...
  • Extremal graph theory for metric dimension and diameter 

    Hernando Martín, María del Carmen; Mora Giné, Mercè; Seara Ojea, Carlos; Wood, David (2010-02-22)
    Article
    Accés obert
    A set of vertices S resolves a connected graph G if every vertex is uniquely determined by its vector of distances to the vertices in S. The metric dimension of G is the minimum cardinality of a resolving set of G. Let ...
  • Extremal graph theory for metric dimension and diameter 

    Hernando Martín, María del Carmen; Mora Giné, Mercè; Pelayo Melero, Ignacio Manuel; Seara Ojea, Carlos; Wood, David (2010)
    Article
    Accés obert
  • Extremal mixed graphs in the context of the Degree/Diameter problem 

    Monserrat Companys, Joaquim (Universitat Politècnica de Catalunya, 2016-10)
    Projecte Final de Màster Oficial
    Accés restringit per acord de confidencialitat
    Realitzat a/amb:  Universitat de Lleida - Grup de recerca Criptografia i Grafs
    Mixed graphs with maximum number of vertices regarding to a given maximum degree and given diameter are known as mixed Moore graphs. Mixed graphs with order one less than the maximum number of vertices regarding to a given ...
  • Extreme intensity pulses in a semiconductor laser with a short external cavity 

    Reinoso, Jose A.; Zamora Munt, Jordi; Masoller Alonso, Cristina (2013-06)
    Article
    Accés obert
    We present a numerical study of the pulses displayed by a semiconductor laser with optical feedback in the short-cavity regime, such that the external cavity round-trip time is shorter than the laser relaxation oscillation ...
  • Extreme normalised residuals of daily temperatures in Catalonia (NE Spain): sampling strategies, return periods and clustering process 

    Serra de Larrocha, Carina; Martínez Santafé, Maria Dolors; Lana Pons, Francisco Javier; Burgueño, August (SPRINGER-VERLAG., 2010-06)
    Article
    Accés restringit per política de l'editorial
    Extreme normalised residuals, defined as departures from the average values, of 65 daily maximum, T max, and minimum, T min, temperature series recorded in Catalonia (NE Spain) during 1950–2004 are analysed. Similarly ...
  • Extreme weights in Steinhaus triangles 

    Brunat Blay, Josep M.; Maureso Sánchez, Montserrat (2016-09-08)
    Article
    Accés restringit per política de l'editorial
    Let {0=w0<w1<w2<…<wm0=w0<w1<w2<…<wm} be the set of weights of binary Steinhaus triangles of size n , and let Wibe the set of sequences in F2n that generate triangles of weight wi. In this paper we obtain the values of wi ...
  • Extremes in hydraulic modelling: combined capabilities in the spanish network MARHIS 

    Sánchez-Arcilla Conejo, Agustín; Losada, Iñigo; Alvarez, Alvaro; González Marco, Daniel; Cáceres Rabionet, Iván; Lara, Javier L. (2016)
    Comunicació de congrés
    Accés obert
    This abstract provides an overview of the experimental work carried out at the MARHIS network formed by the Barcelona and the Santander research laboratories. The emphasis is on the role played by extremes as hydraulic ...
  • Extremes of periodic moving averages of random variables with regularly varying tail probabilities 

    Martins, Ana Paula; Ferreira, Helena (Institut d'Estadística de Catalunya, 2004)
    Article
    Accés obert
    We define a family of local mixing conditions that enable the computation of the extremal index of periodic sequences from the joint distributions of kconsecutive variables of the sequence. By applying results, under local ...
  • Extremum seeking algorithms for minimal hydrogen consumption in PEM fuel cells 

    Kunusch, Cristian; Castaños Luna, Fernando (2013)
    Text en actes de congrés
    Accés obert
    We present an adaptive sliding-mode extremum seeker that minimizes an unknown function that is subject to an unknown static constraint. The same algorithm can be applied when the static constraint is replaced by a dynamic ...
  • Extrinsic behaviour of PZT ceramics near the morphotropic phase transition 

    Albareda Tiana, Alfonso; Pérez Pérez, Rafael; García García, José Eduardo; Tiana Alsina, Jordi; Pérez Codina, Estel (2005-09)
    Article
    Accés obert
    The aim of this work is to study the dependence of the linear and non-linear dielectric, piezoelectric and mechanical coefficients on the Ti fraction in PZT ceramic compositions near the morphotropic phase boundary. The ...
  • Extrinsic coefficient characterisation of PZT ceramics near the morphotropic phase boundary 

    Albareda Tiana, Alfonso; Pérez Pérez, Rafael; García García, José Eduardo; Tiana Alsina, Jordi; Pérez Codina, Estel; Gorri Ochoa, José Antonio (2006-05)
    Article
    Accés obert
    El comportamiento extrínseco de las cerámicas PZT, relacionado con el movimiento de las paredes de los dominios, comporta efectos no lineales grandes. Esta correspondencia entre efectos extrínsecos y no linealidades puede ...
  • Extrinsic contribution and instability properties in lead-based and lead-free piezoceramics 

    García García, José Eduardo (2015-11-01)
    Article
    Accés obert
    Piezoceramic materials generally exhibit a notable instability of their functional properties when they work under real external conditions. This undesirable effect, known as nonlinear behavior, is mostly associated with ...
  • Extrinsic response enhancement at the polymorphic phase boundary in piezoelectric materials 

    Ochoa Guerrero, Diego A.; Esteves, Giovanni; Jones, Jacob L.; Rubio-Marcos, Fernando; Fernández Lozano, José Francisco; García García, José Eduardo (2016-04-04)
    Article
    Accés obert
    Polymorphic phase boundaries (PPBs) in piezoelectric materials have attracted significant interest in recent years, in particular because of the unique properties that can be found in their vicinity. However, to fully ...
  • Extrusion foaming of PHB-copolymer: effect of chain extender and cooling system on the cellular structure and properties 

    Ventura Casellas, Heura; Rodríguez-Pérez, Miguel Ángel; Ardanuy Raso, Mònica (2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this study, we analyse the extrusion foaming capabilities of polyhydroxyalkanoates (PHAs) with endothermic chemical blowing agents (CBAs) based on sodium bicarbonate and citric acid. An epoxy functionalized chain extender ...
  • Eye detection and face recognition in watch-list applications 

    Ariza Bueno, Alejandro (Universitat Politècnica de Catalunya, 2014-02-27)
    Projecte Final de Màster Oficial
    Accés obert
    Els humans tenim una capacitat innata pel reconeixement d'altres persones a través de la cara independentment de les modificacions que aquesta pugui sofrir ja sigui a través de l'edat o essent camuflada per unes ulleres ...
  • Eye detection and face recognition in watch-list applications 

    Ariza Bueno, Alejandro (Universitat Politècnica de Catalunya, 2014-02-27)
    Projecte Final de Màster Oficial
    Accés obert
    Els humans tenim una capacitat innata pel reconeixement d'altres persones a través de la cara independentment de les modificacions que aquesta pugui sofrir ja sigui a través de l'edat o essent camuflada per unes ulleres ...
  • Eye gazed regions prediction in lung radiography 

    Caudevilla Torras, Oriol (Universitat Politècnica de Catalunya, 2013-07-31)
    Projecte/Treball Final de Carrera
    Accés obert
    [ANGLÈS] This project is a first approach to an assisted diagnosis applied to chest x-ray images. Given a x-ray image, we pretend to develop an artificial observer that determines which areas of the image are relevant for ...