Enviaments recents

  • Analytical modelling of bjt neurtral base region under variable injection conditions 

    Bardés Llorensí, Daniel; Alcubilla González, Ramón (1997-08)
    Article
    Accés restringit per política de l'editorial
    We present a set of closed form analytical solutions of the transport equation in the base of bipolar transistors. The presented 1D solutions hold for variable injection conditions, arbitrary doping profiles and arbitrary ...
  • Electrical properties of PECVD amorphous silicon-carbon alloys from amorphous-crystalline heterojunctions 

    Marsal Amenós, Félix; Pallarés Viña, Miguel Juan; Correig Blanchar, Francesc Xavier; Domínguez Pumar, Manuel; Bardés Llorensí, Daniel; Calderer Cardona, Josep; Alcubilla González, Ramón (1997-08)
    Article
    Accés restringit per política de l'editorial
    Heterojunction diodes fabricated by plasma enhanced chemical vapour deposition of n-type amorphous silicon carbide on p-type crystalline silicon are analysed by measuring their current-voltage characteristics. Two carrier ...
  • Distribution of recombination currents in the space charge of heterostructure bipolar devices 

    Pallares, J; Marsal, L F; Correig, X; Calderer Cardona, Josep; Alcubilla González, Ramón (1998-01)
    Article
    Accés obert
    This paper addresses the problem of the space charge region Shockley-Read-Hall (SRH) recombination currents in heterojunctions with one noncrystalline side. A formulation which generalizes previous works is discussed. The ...
  • Analysis of conduction mechanisms in annealed n-Si1-xCx:H/p-crystalline Si heterojunction diodes for different doping concentrations 

    Marsal, L F; Pallares, J; Correig, X; Orpella García, Alberto; Bardés Llorensí, Daniel; Alcubilla González, Ramón (American Institute of Physics (AIP), 1999-01)
    Article
    Accés restringit per política de l'editorial
    We fabricated and characterized annealed n-type amorphous Si1-xCx on p-type crystalline silicon heterojunction diodes with three different base doping concentrations: NA~1016,¿1018, and 1020¿cm-3. The conduction mechanisms ...
  • In-situ doped amorphous Si0.8C0.2 emitter bipolar transistors 

    Orpella García, Alberto; Bardés Llorensí, Daniel; Alcubilla González, Ramón; Marsal, L F; Pallarès Marzal, Josep (1999-11)
    Article
    Accés obert
    The fabrication and characterization of in situ-doped amorphous Si/sub 0.8/C/sub 0.2/ emitter transistors are presented. Emitter Gummel numbers exceeding 10/sup 14/ s/cm/sup 4/ are reported for the first time in this type ...
  • Microcrystalline silicon thin film transistors obtained by hot-wire CVD 

    Puigdollers i González, Joaquim; Dosev, D; Orpella García, Alberto; Voz Sánchez, Cristóbal; Peiro, D; Bertomeu Balaguero, Joan; Marsal, L F; Pallarés, J; Andreu Batallé, Jordi; Alcubilla González, Ramón (1999-12)
    Article
    Accés restringit per política de l'editorial
    Polysilicon thin film transistors (TFT) are of great interest in the field of large area microelectronics, especially because of their application as active elements in flat panel displays. Different deposition techniques ...
  • Alternative conducted emission measurements on mains without LISNs 

    Pous Solà, Marc; Silva Martínez, Fernando (2015-12-01)
    Article
    Accés obert
    Conducted emission tests are always performed by the use of LISNs in laboratories in accordance with CISPR22, CISPR11 and other similar standards. However, it is not always possible to use LISNs because of some limitations. ...
  • Comparison of video-based methods for respiration rhythm measurement 

    Mateu Mateus, Marc; Guede Fernández, Federico; Ferrer Mileo, Víctor; García González, Miguel Ángel; Ramos Castro, Juan José; Fernández Chimeno, Mireya (2019-05-01)
    Article
    Accés restringit per política de l'editorial
    The aim of this work is to characterize the di erences in the respiratory rhythm obtained through three video based methods by comparing the obtained respiratory signals with the one obtained with the gold standard method ...
  • Embroidery textile moisture sensor 

    Martínez Estrada, Marc; Moradi, Bahareh; Fernández García, Raúl; Gil Galí, Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2018-11-21)
    Article
    Accés obert
  • Low-cost online contact resistance measurement of power connectors to ease predictive maintenance 

    Kadechkar, Akash; Moreno Eguilaz, Juan Manuel; Riba Ruiz, Jordi-Roger; Capelli, Francesca (2019-03-12)
    Article
    Accés obert
    With the increasing use of sensors and wireless communication systems, predictive maintenance is acquiring more and more importance to assess the condition of in-service equipment. Predictive maintenance presents promising ...
  • Usefulness of bioelectrical impedance analysis for monitoring patients with refractory ascites 

    Ontanilla Clavijo, Guillermo; Ampuero Herrojo, Javier; Borreguero, Samuel; Rosell Ferrer, Francisco Javier; Romero Gómez, Manuel (2019-01-01)
    Article
    Accés obert
    Background: bioelectrical impedance analysis is a technique for the determination of the hydropic component. The hydropic component, determined by blood volume, could be a reflection of the hemodynamic situation. This ...
  • Advanced methodology for the optimal sizing of the energy storage system in a hybrid electric refuse collector vehicle using real routes 

    Cortez, Ernest; Moreno Eguilaz, Juan Manuel; Soriano Alfonso, Franciso (Multidisciplinary Digital Publishing Institute (MDPI), 2018-11-24)
    Article
    Accés obert
    This paper presents a new methodology for optimal sizing of the energy storage system ( ESS ), with the aim of being used in the design process of a hybrid electric (HE) refuse collector vehicle ( RCV ). This methodology ...

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