Ara es mostren els items 5511-5530 de 84327

  • An extension of the unity vector control method 

    Roqueiro, Nestor; Do Carmo, L. M. M.; Silveira, H. B.; Fossas Colet, Enric (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
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    In this work, Unity Vector Control is revisited based on the results by V. Utkin and co-workers. The approach here presented extends the one reported by V. Utkin and co-workers so that independent feedback gains may be ...
  • An extension problem for sums of fractional Laplacians and 1-D symmetry of phase transitions 

    Cabré Vilagut, Xavier; Serra Montolí, Joaquim (2015-09-10)
    Article
    Accés restringit per política de l'editorial
    We study nonlinear elliptic equations for operators corresponding to non-stable Lévy diffusions. We include a sum of fractional Laplacians of different orders. Such operators are infinitesimal generators of non-stable ...
  • An extension problem for the CR fractional Laplacian 

    Frank, Rupert L.; González Nogueras, María del Mar; Monticelli, Dario D.; Tan, Jinggang (2015-01-01)
    Article
    Accés obert
    We show that the conformally invariant fractional powers of the sub-Laplacian on the Heisenberg group are given in terms of the scattering operator for an extension problem to the Siegel upper halfspace. Remarkably, this ...
  • An extension problem for the CR fractional Laplacian 

    Frank, Rupert L.; González Nogueras, María del Mar; Monticelli, Dario D.; Tan, Jinggang (2013-12)
    Report de recerca
    Accés obert
    We show that the conformally invariant fractional powers of the sub-Laplacian on the Heisenberg group are given in terms of the scattering operator for an extension problem to the Siegel upper halfspace. Remarkably, this ...
  • An extremely thin and robust interconnecting layer providing 76% fill factor in a tandem polymer solar cell architecture 

    Martínez-Otero, Alberto; Liu, Quan; Mantilla-Perez, Paola; Montes Bajo, Miguel; Martorell Pena, Jordi (Royal Society of Chemistry, 2015-04-17)
    Article
    Accés obert
    We report a thin and robust interconnecting layer (ICL) for polymer tandem solar cells. This ICL shows low absorption, good electrical contacts, large work function contrast and robustness. Its use yields tandem cells with ...
  • An FPGA-based system for real-time monitoring of voltage harmonics 

    Eristi, Belkıs; Yıldırım, Özal; Eristi, Hüseyin; Demir, Yakup (SARTI, 2013)
    Article
    Accés obert
  • An hf radar observing systemfor monitoring the surface circulation in the strait of Gibraltar. Deployement and firts results 

    Fernández, V; Galeano, J.C; Tarafa, N.; Ruiz, M.I; Alvarez, E; Lorente, P; Bruno, M; Dastis, C.; Vázquez, A (SARTI, 2011)
    Article
    Accés obert
  • An HMM-Based Approach to the INTERSPEECH 2011 Speaker State Challenge 

    Nogueiras Rodríguez, Albino (2011)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The current main trend in paralinguistic information recognition is the so-called static classification. In this kind of classification the low level descriptors are pooled togethr by means of statistical functionals ...
  • An HPSG grammar of Spanish implemented in ALE: a solution for dealing with subcategorisation alternances 

    Climent Roca, Salvador; Farreres de la Morena, Xavier (1995-07)
    Report de recerca
    Accés obert
    A core of a grammar of Spanish in HPSG including a solution to deal with verbal subcategorisation alternances avoiding to list different senses in the lexicon is built in ALE. Computational efficacy of HPSG and capabilities ...
  • An hybrid eDRAM/SRAM macrocell to implement first-level data caches 

    Valero, Alejandro; Sahuquillo, Julio; Petit, Salvador; Lorente, Vicente; Canal Corretger, Ramon; López, Pedro; Duato, José (Association for Computing Machinery (ACM), 2009)
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    SRAM and DRAM cells have been the predominant technologies used to implement memory cells in computer systems, each one having its advantages and shortcomings. SRAM cells are faster and require no refresh since reads are ...
  • An i*-based framework for the computer-aided selection of mobile office devices 

    Cares, Carlos; Franch Gutiérrez, Javier; Mayol Sarroca, Enric (2006-01)
    Report de recerca
    Accés obert
    The mobile office devices market is currently growing, mainly due to the descending cost of wireless technology as well as the high diversity of functions and features covered. Diversity and proliferation become a hard ...
  • An i*-based Reengineering Framework for Requirements Engineering 

    Grau Colom, Gemma (Universitat Politècnica de Catalunya, 2008-07-07)
    Tesi
    Accés obert
    Avui en dia, els sistemes d'informació són un actiu clau en les organitzacions i sovint els proporcionen un avantatges competitiu. Per a que això segueixi així, han de ser mantinguts i evolucionats d'acord amb els objectius ...
  • An IBC solar cell for the UPC CubeSat-1 mission 

    Ortega Villasclaras, Pablo Rafael; Jové Casulleras, Roger; Pedret, A; Gonzalvez, G.; López Rodríguez, Gema; Martín García, Isidro; Domínguez Pumar, Manuel; Alcubilla González, Ramón; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2013)
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    In this work the fabrication and electrical characterization of interdigitated back contact IBC solar cells is shown. These solar cells have been specifically designed for a CubeSat based satellite under developement at ...
  • An idea model for distributed idea management 

    Duin, Heiko; Belecheanu, Roxana; Oliva Felipe, Luis Javier; Thoben, Klaus-Dieter (2010)
    Comunicació de congrés
    Accés obert
    Processes of Open Innovation and innovation in Living-Labs applying the co-creation paradigm do involve many participating innovators across different organisations and stakeholder groups. This is especially true when ...
  • An identified LPV model for mobile robots navigation with audio features 

    Manzanares Brotons, Manuel; Bolea Monte, Yolanda; Grau Saldes, Antoni (2010)
    Text en actes de congrés
    Accés obert
    Non-speech audio is becoming more attractive to be used as features to mobile robots navigation in industrial environments. In this paper authors present their advances in determining robot’s position in indoor spaces ...
  • An imaging algorithm for synthetic aperture interferometric radiometers with built-in RFI mitigation 

    Camps Carmona, Adriano José; Hyuk, Park; González Gambau, Veronica (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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    Radio Frequency Interference (RFI) is probably one of the most important limiting factors in the accuracy of the brightness temperatures measured by microwave radiometers. Due to the proximity of the 'protected' L-band ...
  • An impacting energy harvester through piezoelectric device for oscillating water flow 

    Toma, Daniel Mihail; Carbonell Ventura, Montserrat; Pujol Bresco, David; Manuel Lázaro, Antonio; Miquel Masalles, Jaume (2013)
    Text en actes de congrés
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    The reduced power requirements of miniaturized electronics offers the opportunity to create devices having their power supply based on energy harvesters. In this paper a new idea is proposed and studied to supply underwater ...
  • An impacting energy harvester through piezoelectric device for velocity water flow 

    Toma, Daniel; Carbonell Ventura, Montserrat; Pujol Bresco, David; Mànuel, Antoni; Miquel, Jaume (SARTI, 2013)
    Comunicació de congrés
    Accés obert
  • An implementation of a generic memetic algorithm for the edge biconnectivity augmentation problem 

    Xhafa Xhafa, Fatos (2003-11)
    Report de recerca
    Accés obert
    In this paper we present an implementation of a generic memetic algorithm for the edge bi-connectivity augmentation problem --the problem of augmenting a given graph by a cheapest possible set of additional edges in order ...
  • An implementation of a Multi-model predictor based on the qualitative and quantitative decomposition of the Time-series 

    López Frías, Rodrigo; Puig Cayuela, Vicenç; Rodríguez Rangel, Héctor (Universidad de Granada, 2015)
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    In this paper, an implementation of a Multi-Model Predictor architecture based on a framework composed by modules is proposed. The modules interacts among them to detect and activate forecasting modes given the input data ...