Ara es mostren els items 2999-3018 de 245647

    • A canonical realization of the Weyl BMS symmetry 

      Batlle Arnau, Carles; Campello Román, Víctor Manuel; Gomis Torné, Joaquim (Elsevier, 2020-12-10)
      Article
      Accés obert
    • A canonical reduced form for singular time invariant linear systems 

      García Planas, María Isabel; Díaz, Adolfo (2009-09)
      Text en actes de congrés
      Accés obert
      We consider quadruples of matrices (E; A;B;C), representing singular linear time invariant systems in the form Ex_ (t) = Ax + Bu y = Cx ¾ (1) with E;A 2 Mp£n(C), B 2 Mp£m(C) and C 2 Mq£n(C) under proportional and ...
    • A canonical reduced form for singular time invariant linear systems. Part I 

      García Planas, María Isabel; Díaz, Adolfo (WSEAS Press. World Scientific and Engineering Academy and Society, 2009-12)
      Comunicació de congrés
      Accés obert
    • A canonical reduced form for singular time invariant linear systems. Part II 

      García Planas, María Isabel; Díaz, Adolfo (WSEAS Press. World Scientific and Engineering Academy and Society, 2009-12)
      Comunicació de congrés
      Accés obert
    • A CANopen interface for substituting a proprietary communication protocol in custom hardware devices 

      Rovira Buxadera, Alexandra (Universitat Politècnica de Catalunya, 2022-09-07)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      Realitzat a/amb:   Hewlett Packard Española
      We consider a system architecture where the communication between the remote devices and a central controller is done using a custom application protocol on top of CAN. CANopen is a communication protocol based on CAN that ...
    • A canvas for the ethical design of learning experiences with digital tools 

      Hardebolle, Cécile; Jermann, Patrick; Tormey, Roland; Dehler Zufferey, Jessica; Gillet, Denis; Holzer, Adrian; Felber, Pascal; Bentel, Katrin; Brändle, Urs; Kortemeyer, Gerd (Universitat Politècnica de Catalunya, 2022-09)
      Text en actes de congrés
      Accés obert
      The use of digital tools has drastically increased in engineering education, accelerated by the COVID-19 pandemic. These tools generate important ethical issues, in particular in terms of privacy and fairness. However, ...
    • A capacitated commodity trading model with market power 

      Vendrell Simón, Josep Mª (Universitat Politècnica de Catalunya, 2008-02)
      Projecte Final de Màster Oficial
      Accés obert
      This Master Thesis proposes an analytical model of commodity trading in the presence of market power, which is new to the literature. We establish the rational behavior of traders between two markets and derive price ...
    • A carrier based approach for overmodulation of three-level neutral point clamped inverter with zero neutral-point current 

      Maheshwari, RamKrishan; Munk-Nielsen, Stig; Busquets Monge, Sergio (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In a voltage source inverter, overmodulation is required to extend the range of operation and enhance the dclink voltage utilization. A carrier-based implementation of a modulation strategy for the three-level ...
    • A carrier-based PWM strategy with zero-sequence voltage injection for a three-level neutral-point-clamped converter 

      Pou Félix, Josep; Zaragoza Bertomeu, Jordi; Ceballos Recio, Salvador; Saeedifard, Maryam; Boroyevich, Dushan (Institute of Electrical and Electronics Engineers (IEEE), 2012-01-09)
      Article
      Accés restringit per política de l'editorial
      Performance of a carrier-based pulsewidth modulation (CB-PWM) strategy can be improved by the inclusion of a zero-sequence voltage in the modulation-reference signal. This paper proposes a new CB-PWM strategy for a three-level ...
    • A Cartan-Eilenberg approach to homotopical algebra 

      Pascual Gainza, Pere; Roig Martí, Agustín; Guillén Santos, Francisco; Navarro Aznar, Vicente (2008-09-01)
      Article
      Accés obert
      In this paper we propose an approach to homotopical algebra where the basic ingredient is a category with two classes of distinguished morphisms: strong and weak equivalences. These data determine the cofibrant objects ...
    • A Cartan-Eilenberg approach to homotopical algebra 

      Guillén Santos, Francisco; Navarro Aznar, Vicente; Pascual Gainza, Pere; Roig Martí, Agustín (2010)
      Article
      Accés restringit per política de l'editorial
      In this paper we propose an approach to homotopical algebra w here the basic ingredient is a category with two classes of distinguished morphisms: s trong and weak equivalences. These data determine the cofibrant objects ...
    • A cartografia digital na investigação urbanística do patrimônio cultural: a área central da cidade do Rio de Janeiro 

      Mattos, Guilherme M. M. de; Sampaio, Andréa da Rosa (Faculdade de Arquitetura da Universidade de Lisboa / Universidade Presbiteriana Mackenzie de São Paulo / Pontifícia Universidade Católica de Campinas / Grup de Recerca en Urbanisme de la Universitat Politècnica de Catalunya / Academia de Escolas de Arquitectura e Urbanismo de Língua Portugues, 2020-06)
      Text en actes de congrés
      Accés obert
      O presente trabalho tem como objetivo destacar o potencial das cartografias digitais na investigação dos processos de transformação das cidades, com foco na salvaguarda de bens culturais edificados. Para tanto, adota-se ...
    • A case for acoustic wave detectors for soft-errors 

      Upasani, Gaurang; Vera Rivera, Francisco Javier; González Colás, Antonio María (2016-01-01)
      Article
      Accés restringit per política de l'editorial
      The continuing decrease in dimensions and operating voltage of transistors has increased their sensitivity against radiation phenomena, making soft errors an important challenge in future microprocessors. New techniques ...
    • A case for code-representative microbenchmarks 

      Bulla, Calvin; Moretó Planas, Miquel (Barcelona Supercomputing Center, 2017-05-04)
      Text en actes de congrés
      Accés obert
      Microbenchmarks are fundamental in the design of a microarchitecture. They allow rapid evaluation of the system, while incurring little exploration overhead. One key design aspect is the thermal design point (TDP), the ...
    • A case for malleable thread-level linear algebra libraries: The LU factorization with partial pivoting 

      Catalán Pallarés, Sandra; Herrero Zaragoza, José Ramón; Quintana Ortí, Enrique Salvador; Rodríguez Sánchez, Rafael; Van De Geijn, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-31)
      Article
      Accés obert
      We propose two novel techniques for overcoming load-imbalance encountered when implementing so-called look-ahead mechanisms in relevant dense matrix factorizations for the solution of linear systems. Both techniques target ...
    • A case for merging the ILP and DLP paradigms 

      Quintana Rodríguez, Francisca; Espasa Sans, Roger; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 1998)
      Text en actes de congrés
      Accés obert
      The goal of this paper is to show that instruction level parallelism (ILP) and data-level parallelism (DLP) can be merged in a single architecture to execute vectorizable code at a performance level that can not be achieved ...
    • A case for resource-conscious out-of-order processors 

      Cristal Kestelman, Adrián; Martínez, José F; Llosa Espuny, José Francisco; Valero Cortés, Mateo (2003-12)
      Article
      Accés obert
      Modern out-of-order processors tolerate long-latency memory operations by supporting a large number of in-flight instructions. This is achieved in part through proper sizing of critical resources, such as register files ...
    • A case for user-level dynamic page migration 

      Nikolopoulos, Dimitrios; Papatheodorou, Theodore; Polychronopoulos, Constantine D.; Labarta Mancho, Jesús José; Ayguadé Parra, Eduard (Association for Computing Machinery (ACM), 2000)
      Text en actes de congrés
      Accés obert
      This paper presents user-level dynamic page migration, a runtime technique which transparently enables parallel programs to tune their memory performance on distributed shared memory multiprocessors, with feedback obtained ...
    • A case of acquisition, transmission and use of information to control a manufacturing process 

      Fernández Román, Laura (Universitat Politècnica de Catalunya, 2009-10-08)
      Projecte Final de Màster Oficial
      Accés obert
    • A case of winter lightning initiation from a tall structure in the Basque Country 

      López, Javier; Montañá Puig, Juan; Maruri, M.; Aranda, José Antonio; Gaztelumendi, S. (2010)
      Comunicació de congrés
      Accés restringit per decisió de l'autor
      Lightning research is usually focused on the most active months of the year, those corresponding to the summer season. These thunderstorms produce most of the lightning records during a year in the Basque Country, and ...