Now showing items 1-12 of 21

    • Dynamic buffer sizing and pacing as enablers of 5G low-latency services 

      Irazabal Bengoa, Mikel; López Aguilera, M. Elena; Seyfettin Demirkol, Ilker; Nikaein, Navid (2020-08-17)
      Article
      Open Access
      3GPP standards organization is performing an impressive effort trying to reach sub-millisecond latencies for 5G. However, such efforts may become fruitless if exogenously generated delays at transport layer are not considered. ...
    • Superregeneration revisited: from principles to current applications 

      Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Águila López, Francisco del; Moncunill Geniz, Francesc Xavier; Giralt Mas, Ma. Rosa (2020-02-01)
      Article
      Open Access
      Wireless communications play a central role in our modern connected lives; at the same time, they constitute a very broad and deep area of research. The elements that make wireless communications possible are a transmitter, ...
    • An interdisciplinary approach to motivate students to learn digital systems and computing engineering 

      Tarres Puertas, Marta Isabel; López Riera, Alexis; Palà Schönwälder, Pere; Vila Marta, Sebastià (Tempus Publications, 2019-03-01)
      Article
      Restricted access - publisher's policy
      We report a new learning approach in collaborative learning-by doing, real-world team-based project in two ICT courses: DigitalSystems and Computing Engineering, conducted at Universitat Polite`cnica de Catalunya. Data ...
    • Optimal batch scheduling of a multiproduct dairy process using a combined optimization/constraint programming approach 

      Escobet Canal, Teresa; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin; Palà Schönwälder, Pere; Romera Formiguera, Juli; Adelman, Winfried (Pergamon Press, 2019-03-08)
      Article
      Restricted access - publisher's policy
      This paper presents the optimal batch scheduling of a multi-product dairy process using an approach that combines optimization and constraint programming techniques. A suitable model describing the subprocesses and production ...
    • A discrete-time technique for the steady-state analysis of nonlinear class-E amplifiers 

      Águila López, Francisco del; Palà Schönwälder, Pere; Molina Gaudó, Pilar; Mediano Heredia, Arturo (Institute of Electrical and Electronics Engineers (IEEE), 2007-06-11)
      Article
      Open Access
      Switched circuits are widely used, particularly for power electronic applications in which efficiency is important. Of these applications, the class-E amplifier has been given particular attention, since it is theoretically ...
    • Joint symbol and chip synchronization for a burst-mode-communication superregenerative MSK receiver 

      López Riera, Alexis; Águila López, Francisco del; Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Giralt Mas, Ma. Rosa; Moncunill Geniz, Francesc Xavier (2017-01-05)
      Article
      Open Access
      In this paper we describe a superregenerative (SR) MSK receiver able to operate in a burst-mode framework where synchronization is required for each packet. The receiver is based on an SR oscillator which provides samples ...
    • A discrete-time approach to the steady-state and stability analysis of distributed nonlinear autonomous circuits 

      Bonet Dalmau, Jordi; Palà Schönwälder, Pere (2000-02)
      Article
      Open Access
      We present a direct method for the steady-state and stability analysis of autonomous circuits with transmission lines and generic non- linear elements. With the discretization of the equations that describe the circuit ...
    • Stability analysis of periodic solutions in non-linear autonomous circuits: a discrete time approach 

      Miró Sans, Joan Maria; Palà Schönwälder, Pere; Mas Casals, Orestes Miquel (1996-07)
      Article
      Restricted access - publisher's policy
      Steady-state methods have been devised to compute periodic wave-forms without having to integrate the autonomous circuit equations until the transients die out. Stability analysis of the computed solutions is the next ...
    • The Mendeleev-Meyer force project 

      Santos Hernández, Sergio; Lai, Chia-Yun; Amadei, Carlo Alberto; Gadelrab, Karim Raafat; Tang, Tzu-Chieh; Verdaguer Prats, Albert; Barcons Xixons, Víctor; Font Teixidó, Josep; Colchero, Jaimer; Chiesa, Matteo (2016-10-28)
      Article
      Open Access
      Here we present the Mendeleev–Meyer Force Project which aims at tabulating all materials and substances in a fashion similar to the periodic table. The goal is to group and tabulate substances using nanoscale force footprints ...
    • Circuitos de capacidades conmutadas. Análisis frecuencial por ordenador 

      Puerta Notario, Antonio; Miró Sans, Joan M.; Sanz Postils, Margarita (1985-10)
      Article
      Restricted access - publisher's policy
      El interés fundamental de los circuitos de condensadores conmutados radica en su aplicación a la realización de filtros monolíticos y de otros bloques funcionales para su tratamiento analógico de la señal. Resulta del ...
    • Formalism for a multiresolution time series database model 

      Llusà Serra, Aleix; Vila Marta, Sebastià; Escobet Canal, Teresa (2016-03)
      Article
      Open Access
      We formalise a specialised database management system model for time series using a multiresolution approach. These special purpose database systems store time series lossy compressed in a space-bounded storage. Time series ...
    • Single cycle and transient force measurements in dynamic atomic force microscopy 

      Gadelrab, Karim Raafat; Santos, Sergio; Font Teixidó, Josep; Chiesa, Matteo (2013-11-21)
      Article
      Open Access
      The monitoring of the deflection of a micro-cantilever, as the end of a sharp probe mounted at its end, i.e. the tip, interacts with a surface, forms the foundation of atomic force microscopy AFM. In a nutshell, developments ...