Ara es mostren els items 1-15 de 15

    • Afinador d'instrument musical realitzat en Matlab 

      Prats Gallego, Albert (Universitat Politècnica de Catalunya, 2007-02)
      Projecte/Treball Final de Carrera
      Accés restringit per decisió de l'autor
      Aquest projecte consisteix en el disseny d’un afinador d’instrument musical amb la característica d’indicar al music si una nota està afinada o s’ha d’ajustar. De fet, l’afinador d’instrument musical està preparat per ...
    • Afinador musical sobre dispositiu mòbil Android 

      Torramilans Peidro, Marc (Universitat Politècnica de Catalunya, 2010)
      Projecte/Treball Final de Carrera
      Accés obert
    • Diseño y desarrollo de un afinador automático de guitarra 

      Ruda Gazcón-Araoz, Diego (Universitat Politècnica de Catalunya, 2019-02-07)
      Treball Final de Grau
      Accés restringit per decisió de l'autor
      [CASTELLÀ] Este proyecto consiste en el diseño y desarrollo de un afinador de guitarra, el cual será capaz de adquirir la vibración de las cuerdas de una guitarra, con el fin de identificar si estas se encuentran afinadas ...
    • Exploring the voltage divider approach for accurate memristor state tuning 

      Vourkas, Ioannis; Gomez, Jorge; Abusleme, Angel; Vasileiadis, Nikolaos; Sirakoulis, Georgios; Rubio Sola, Jose Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The maximum exploitation of the favorable properties and the analog nature of memristor technology in future nonvolatile resistive memories, requires accurate multilevel programming. In this direction, we explore the voltage ...
    • Guided to leaky mode transition in uniaxial optical slab waveguides 

      Torner Sabata, Lluís; Recolons Martos, Jaume; Pérez Torres, Juan (1993-10)
      Article
      Accés obert
      The guided-to-leaky hybrid mode transition in slab optical waveguides made on uniaxial crystals such as LiNbO/sub 3/, or LiTaO/sub 3/, is analyzed. Two different guided-to-leaky transitions have been identified, namely the ...
    • Guided-to-leaky mode transition in uniaxial optical slab waveguides 

      Torner Sabata, Lluís; Recolons Martos, Jaume; Pérez Torres, Juan (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1993-10-01)
      Article
      Accés obert
      The guided-to-leaky hybrid mode transition in slab optical waveguides made on uniaxial crystals such as LiNbO3, or LiTaO 3, is analyzed. Two different guided-to-leaky transitions have been identified, namely the ordinary ...
    • Mechanical tuning of substrate integrated waveguide filters 

      Mira, Fermin; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos (IEEE Microwave Theory and Techniques Society, 2015-12-01)
      Article
      Accés obert
      This paper presents a novel approach for tuning substrate integrated waveguide resonators, realized by placing an additional metallized via-hole on the waveguide cavity. The approach presented here can be applied as a ...
    • Mechanical tuning of substrate integrated waveguide resonators 

      Mira, Fermín; Mateu, Joan; Collado Gómez, Juan Carlos (2012)
      Article
      Accés restringit per política de l'editorial
      This letter presents a novel approach for providing substrate-integrated waveguide tunable resonators by means of placing an additional metalized via-hole on the waveguide cavity. The via-hole contains an open-loop slot ...
    • Optimal tuning of the control parameters of an inverter-based microgrid using the methodology of design of experiments 

      Miret Tomàs, Jaume; Balestrassi, Pedro Paulo; Camacho Santiago, Antonio; Guzmán Solà, Ramon; Castilla Fernández, Miguel (2020-10-01)
      Article
      Accés obert
      The design of the control system in an inverter-based microgrid is a challenging problem due to the large number of parameters involved. Different optimisation methods based on obtaining an approximated mathematical model ...
    • Perpetual reconfigurable intelligent surfaces through in-band energy harvesting: architectures, protocols, and challenges 

      Ntontin, Konstantinos; Boulogeorgos, Alexandros Apostolos A.; Abadal Cavallé, Sergi; Mesodiakaki, Agapi; Chatzinotas, Symeon; Ottersten, Björn (Institute of Electrical and Electronics Engineers (IEEE), 2024-03)
      Article
      Accés obert
      Reconfigurable intelligent surfaces (RISs) are considered a key enabler of highly energy-efficient 6G and beyond networks. This property arises from the absence of power amplifiers in the structure, in contrast to active ...
    • Programmable metasurfaces: state of the art and prospects 

      Liu, Fu; Pitilakis, Alexandros; Mirmoosa, Mohammad Sajjad; Tsilipakos, Odysseas; Wang, Xuchen; Tasolamprou, Anna; Abadal Cavallé, Sergi; Cabellos Aparicio, Alberto; Alarcón Cot, Eduardo José; Liaskos, Christos; Kantartzis, Nikolaos V.; Kafesaki, Maria; Economou, Eleftherios; Soukoulis, Costas; Tretyakov, Sergei (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      Metasurfaces, ultrathin and planar electromagnetic devices with sub-wavelength unit cells, have recently attracted enormous attention for their powerful control over electromagnetic waves, from microwave to visible range. ...
    • Reconfigurable DPD based on ANNs for wideband load modulated balanced amplifiers under dynamic operation from 1.8 to 2.4 GHz 

      Guillena Berenguer, Estefanía; Li, Wantao; Montoro López, Gabriel; Quaglia, Roberto; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2021-01-01)
      Article
      Accés obert
      This article proposes a methodology to ensure linear amplification of a load modulated balanced amplifier (LMBA) while keeping the power efficiency as high as possible over a frequency band ranging from 1.8 to 2.4 GHz and ...
    • The role of the internal energy in MMCs operating in grid-forming mode 

      Sánchez Sánchez, Enric; Prieto Araujo, Eduardo; Gomis Bellmunt, Oriol (Institute of Electrical and Electronics Engineers (IEEE), 2020-06)
      Article
      Accés obert
      With an increasing number of renewable energy resources being integrated into the power system through power electronics, conventional power plants based on large synchronous machines tend to be reduced in the upcoming ...
    • Tuning of operators in memetic algorithms for independent batch scheduling in computational grids 

      Xhafa Xhafa, Fatos; Duran, B.; Barolli, Leonard; Kolici, Vladi; Miho, Rozeta; Takizawa, Makoto (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Efficient scheduling of jobs to resources is a core service of Computational Grids (CGs). Due to the large scale, the dynamic nature and the highly heterogeneous tasks and resources, scheduling is a challenging problem in ...
    • Tuning struggle strategy in genetic algorithms for scheduling in computational grids 

      Xhafa Xhafa, Fatos; Duran, Bernat; Abraham, Ajith; Dahal, Keshav P. (2008-10)
      Article
      Accés obert
      Job Scheduling on Computational Grids is gaining importance due to the need for efficient large-scale Grid-enabled applications. Among different optimization techniques addressed for the problem, Genetic Algorithm (GA) is ...