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  • Magnetic localization system for short-range positioning: a ready-to-use design tool 

    Ferrigno, Luigi; Laracca, Marco; Casas Piedrafita, Óscar; Cerro, Gianni; Bellitti, Paolo; Serpelloni, Mauro; Milano, Filippo (2021)
    Article
    Open Access
    Magnetic localization is used in many indoor positioning applications, such as industrial, medical, and IoT, for its benefits related to the absence of line of sight needs, multipath and fading, the low cost of transmitters ...

  • Non-contact video-based assessment of the respiratory function using a RGB-D camera 

    Valenzuela Ramírez, Andrea; Hornero Ocaña, Gemma; Casas Piedrafita, Óscar; Sibuet Ruiz, Nicolás (Multidisciplinary Digital Publishing Institute (MDPI), 2021-08-20)
    Article
    Open Access
    A fully automatic, non-contact method for the assessment of the respiratory function is proposed using an RGB-D camera-based technology. The proposed algorithm relies on the depth channel of the camera to estimate the ...

  • Entropy generation model to estimate battery ageing 

    Cuadras Tomàs, Àngel; Miró Jané, Pol; Ovejas Benedicto, Victòria Júlia; Estrany Coda, Francesc (Elsevier, 2020-12)
    Article
    Open Access
    Determining battery ageing is a key issue in predicting the available charge in battery-operated systems. Beyond the common use of voltage or current measurements, which have proved unsuccessful as general methods, we aim ...

  • Hydrophobic membranes for ammonia recovery from digestates in microbial electrolysis cells: Assessment of different configurations 

    Cerrillo Moreno, Míriam; Burgos Rodríguez, Laura; Serrano Finetti, Roberto Ernesto; Riau Arenas, Victor; Noguerol Arias, Joan; Bonmatí Blasi, August (Elsevier, 2021-08)
    Article
    Open Access
    The combination of hydrophobic membranes and microbial electrolysis cells (MEC) was assessed in two different configurations in order to recover ammonia from anaerobically digested pig slurry. Politetrafluorethilene ...

  • Analysis of energy and entropy balance in a residential building 

    Rico Perez, Angel; Ovejas Benedicto, Victòria Júlia; Cuadras Tomàs, Àngel (2022-01-20)
    Article
    Open Access
    The energy performance of a building located in La Roca del Vallès, close to Barcelona in Spain designed under the near Zero Energy Building (nZEB) and Net Zero Energy Building (NZEB) criteria was investigated. The aim was ...

  • Common mode response effects in differential measurements 

    Hornero Ocaña, Gemma; Casas Piedrafita, Óscar; Pallàs-Areny, Ramon (2021-01)
    Article
    Open Access
    Differential measurements yield signals that are conditioned by differential or fully differential circuits which output depends on both the differential- and common-mode input voltages. Differential signals carry the ...

  • Assessment of emotional states through physiological signals and Its application in music therapy for disabled people 

    Valenzuela Ramírez, Andrea; Hornero Ocaña, Gemma; Royo, Daniel; Aguilar, Angel; Casas Piedrafita, Óscar (Institute of Electrical and Electronics Engineers (IEEE), 2020-07-09)
    Article
    Open Access
    Disabled people have more difficulties for expression and interaction on a non-verbal level because of the physical, sensory or communication difficulties that they usually present. Regarding music therapy, the existing ...

  • Adquisición y tratamiento de datos para la caracterización de las acciones dinámicas en los disipadores de energía hidráulica 

    Castillo Elsitdié, Luis Gerardo; Dolz Ripollès, Josep; Polo Cantero, José (1992-02)
    Article
    Open Access
    Las características de tridimensionalidad, turbulencia anisotrópica y no homogénea que se presentan en el flujo de los disipadores de energía hidráulica, no permiten un estudio analítico del problema, siendo por tanto la ...

  • Micro air vehicles energy transportation for a wireless power transfer system 

    Polo Cantero, José; Hontecillas Guinart, Lluís; Izquierdo Pérez, Ignacio; Casas Piedrafita, Óscar (2019-10-22)
    Article
    Open Access
    The aim of this work is to demonstrate the feasibility use of an Micro air vehicles (MAV) in order to power wirelessly an electric system, for example, a sensor network, using low-cost and open-source elements. To achieve ...

  • Cost-effective autonomous sensor for the long-term monitoring of water electrical conductivity of crop fields 

    Serrano Finetti, Roberto Ernesto; Aliau Bonet, Carles; López Lapeña, Oscar; Pallàs-Areny, Ramon (2019-10-01)
    Article
    Open Access
    Salinity is a key parameter determining water quality. In agriculture, irrigation water with high salinity levels impacts plant growth and yield negatively hence there is a need to monitor it and irrigate with fresh water ...

  • A Fully Differential Synchronous Demodulator for AC Signals 

    González Landaeta, Rafael; Cota Ruiz, Juan; Sifuentes, Ernesto; Díaz, José; Casas Piedrafita, Óscar (2019-02-22)
    Article
    Restricted access - publisher's policy
    A novel fully differential (FD) demodulator is presented. Using different design strategies, the circuit can be used for processing amplitude-modulated (AM) signals obtained from impedance measurements or coming from ...

  • Comments on “A novel high input impedance front-end for capacitive biopotential measurement” 

    Pallàs-Areny, Ramon (Springer, 2019-12-13)
    Article
    Open Access
    A front-end for biopotential sensing in wearable medical devices has been recently proposed which is claimed to provide 100 GOinput impedance by manually matching two resistor pairs in a positive- and a negative-feedback ...

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