Ara es mostren els items 21-40 de 60

    • Estimación experimental de la rugosidad y del factor de fricción en una tubería 

      Santos Ruiz, Ildeberto de los; Bermúdez Hernández, José Roberto; López Estrada, Francisco Ronay; Puig Cayuela, Vicenç; Torres Ortiz, Flor Lizeth (2018)
      Text en actes de congrés
      Accés obert
      El presente trabajo tiene dos propósitos. (1) Presentar la evaluación númerica y experimental de algunos métodos propuestos para estimar el factor de fricción en régimen turbulento, entre ellos una solución explícita ...
    • Estrategias alternativas en la determinación del factor de ajuste en el cálculo de la pérdida de carga por fricción en tuberías con salidas múltiples 

      Angeles, Vicente; Carrillo, Mauricio; Ibáñez, Laura A.; Arteaga, Ramón; Vázquez, Mario A. (Fundación para el Fomento de la Ingeniería del Agua, 2009-03)
      Article
      Accés obert
      En este artículo se desarrollan expresiones alternativas para cuantificar el factor de ajuste en el cálculo de la pérdida de carga por fricción en tuberías convencionales con salidas múltiples (constituidas por un solo ...
    • Estudi sobre el desenvolupament d'un sistema remot de detecció de fuites d'aigua integrat en canonades prefabricades: memòria 

      Pociello Palau, Alexandre-Nikos (Universitat Politècnica de Catalunya, 2018-01-10)
      Treball Final de Grau
      Accés obert
      L’objectiu principal d’aquest estudi es centra en l’elaboració d’un prototip que ens permeti avaluar la viabilitat de desenvolupar un sistema per detectar remotament fuites d’aigua en canonades prefabricades de gran diàmetre. ...
    • Estudi, anàlisi i implantació de millores en un taller de fabricació de canonades 

      Jiménez Hernández, Javier Enrique (Universitat Politècnica de Catalunya, 2020-02-13)
      Treball Final de Grau
      Accés obert
      Basat en la continua millora dels mètodes de treball i la introducció de nous avanços tecnològics en el dia a dia de les empreses, l’objecte de treball d’aquest projecte es la anàlisis y estudi de millores per a un taller ...
    • Experimental and numerical analysis of directional added mass effects in partially liquid-filled horizontal pipes 

      Escaler Puigoriol, Francesc Xavier; Torre Rodríguez, Oscar de la; Goggins, Jamie (2017-02)
      Article
      Accés obert
      The change of pipe natural frequencies due to added mass effects has been investigated in two cylindrical horizontal pipes from empty to completely water filled cases with various intermediate partially-filled conditions. ...
    • Experimental study of the dynamic response of partially filled pipes focused on natural frequencies and mode shapes 

      De la Torre Rodriguez, Oscar; Escaler Puigoriol, Francesc Xavier; Goggins, Jamie (American Society of Mechanical Engineers (ASME), 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The presence of air in piping systems is a major concern in the industry. Problems like flow disruption, reduction of hydraulic machinery efficiencies or a significant drop in pipe capacity are many times related to this ...
    • Floki: a proactive data forwarding system for direct inter-function communication for serverless workflows 

      Nestorov, Anna Maria; Berral García, Josep Lluís; Misale, Claudia; Wang, Chen; Carrera Pérez, David; Youssef, Alaa (Association for Computing Machinery (ACM), 2022)
      Text en actes de congrés
      Accés obert
      Serverless computing emerges as an architecture choice to build and run containerized data-intensive pipelines. It leaves the tedious work of infrastructure management and operations to the cloud provider, allowing developers ...
    • From synchronous to asynchronous: an automatic approach 

      Cortadella, Jordi; Kondratyev, Alex; Lavagno, Luciano; Lwin, Kelvin; Sotiriou, Christos P. (Institute of Electrical and Electronics Engineers (IEEE), 2004)
      Text en actes de congrés
      Accés obert
      This paper presents a methodology to derive asynchronous circuits from optimized synchronous circuits by replacing the clock distribution tree by a handshaking network. A case study shows the applicability of the method ...
    • Handshake protocols for de-synchronization 

      Blunno, Ivan; Cortadella, Jordi; Kondratyev, Alex; Lavagno, Luciano; Lwin, Kelvin; Sotiriou, Christos P. (Institute of Electrical and Electronics Engineers (IEEE), 2004)
      Text en actes de congrés
      Accés obert
      De-synchronization appears as a new paradigm to automate the design of asynchronous circuits from synchronous netlists. This paper studies different protocols for de-synchronization and formally proves their correctness. ...
    • Implementation of a 5x5 trits multiplier in a quasi-adiabatic ternary CMOS logic 

      Mateo Peña, Diego; Rubio Sola, Jose Antonio (Institute of Electrical and Electronics Engineers (IEEE), 1997)
      Text en actes de congrés
      Accés obert
      Adiabatic switching is one technique to design low power digital IC. In order to diminish its expensive silicon area requirements an adiabatic ternary logic is proposed. A 5×5 trits (ternary signals) multiplier has been ...
    • Implementing a machine learning function orchestration 

      Wassington, Axel; Velasco Esteban, Luis Domingo; Gifré Renom, Lluís; Ruiz Ramírez, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Text en actes de congrés
      Accés obert
      Deployment of Machine Learning (ML) applications require from an Orchestrator to create ML functions that are connected as ML pipelines. Orchestrator implementation and demonstration for the deployment and reconfiguration ...
    • Imposing coarse-grained reconfiguration to general purpose processors 

      Duric, Milovan; Stanic, Milan; Ratkovic, Ivan; Palomar Pérez, Óscar; Unsal, Osman Sabri; Cristal Kestelman, Adrián; Valero Cortés, Mateo; Smith, Aaron (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Mobile devices execute applications with diverse compute and performance demands. This paper proposes a general purpose processor that adapts the underlying hardware to a given workload. Existing mobile processors need to ...
    • Improving branch prediction and predicated execution in out-of-order processors 

      Quiñones, Eduardo; Parcerisa Bundó, Joan Manuel; González Colás, Antonio María (Institute of Electrical and Electronics Engineers (IEEE), 2007)
      Text en actes de congrés
      Accés obert
      If-conversion is a compiler technique that reduces the misprediction penalties caused by hard-to-predict branches, transforming control dependencies into data dependencies. Although it is globally beneficial, it has a ...
    • Inherently workload-balanced clustered microarchitecture 

      Abella Ferrer, Jaume; González Colás, Antonio María (Institute of Electrical and Electronics Engineers (IEEE), 2005)
      Text en actes de congrés
      Accés obert
      The performance of clustered microarchitectures relies on steering schemes that try to find the best trade-off between workload balance and inter-cluster communication penalties. In previously proposed clustered processors, ...
    • Is intelligence the answer to deal with the 5 V’s of telemetry data? 

      Velasco Esteban, Luis Domingo; Barzegar, Sima; Ruiz Ramírez, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Text en actes de congrés
      Accés obert
      Telemetry data and big data share volume, velocity, variety, veracity and value characteristics. We propose a distributed telemetry architecture and show how intelligence can help dealing with the 5 V’s of optical networks ...
    • Large scale validation of a new isotropic hardening law for the barcelona plastic damage model under ultra low cycle fatigue conditions 

      Barbu, Lucia Gratiela; Martínez García, Javier; Oller Martínez, Sergio Horacio; Barbat Barbat, Horia Alejandro (CIMNE, 2015)
      Text en actes de congrés
      Accés obert
      This paper presents the results of finite element simulations made on a bent pipe subjected to an in-plane variable cyclic displacement combined with internal pressure. The results of the numerical analyses will be compared ...
    • Las Tuberías de hormigón armado con camisa de chapa, la experiencia en Barcelona 

      Corchado Mesa, Juan Román (Universitat Politècnica de Catalunya, 2019-05-10)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      El presente trabajo estudia las tuberías de hormigón armado con camisa de chapa, centrándose especialmente en el caso de la ciudad de Barcelona y su área metropolitana. El objetivo de este trabajo es elaborar un ...
    • Leak diagnosis in pipelines based on a Kalman filter for Linear Parameter Varying systems 

      Delgado-Aguiñaga, J.A.; Puig Cayuela, Vicenç; Becerra-López, F.I. (2021)
      Article
      Accés obert
      This paper proposes a new approach for the leak diagnosis problem in pipelines based on the use of a Kalman filter for Linear Parameter Varying (LPV) systems. Such a filter considers the availability of flow and pressure ...
    • Leak diagnosis in pipelines using a combined artificial neural network approach 

      Pérez Pérez, Esvan de Jesús; López Estrada, Francisco Ronay; Valencia Palomo, Guillermo; Torres González, Luis Daniel; Puig Cayuela, Vicenç; Mina Antonio, J. D. (2021-02-01)
      Article
      Accés obert
      Leakages in pipelines affect the reliability of fluid transport systems causing environmental damages, economic losses, and pressure reduction at the delivery points. Therefore, this paper presents a methodology to detect ...
    • Microstructure and mechanical properties of Nb-API X70 low carbon steel 

      Faria Conde, Fabio; Pina, Felipe; Giarola, Joseane; Pereira, Gualter; Ávila Díaz, Julián Arnaldo; Francisco, Julio; Bose Filho, Waldek (Springer, 2021-08-11)
      Article
      Accés obert
      The oil and gas production has grown steadily, and the care with its transportation grid needs to be maintained and expanded. The pipeline used in the transport of gas and oil by-product requires materials with high ...