Recent Submissions

  • Sedimentation monitoring of the active biomass in bioreactors by electrical impedance spectroscopy 

    Cerrillo Moreno, Míriam; Serrano Finetti, Roberto Ernesto; Mata Calabuig, Nuria (2020)
    Conference report
    Open Access
    Sequencing batch reactors are used in wastewater treatment to produce biogas (methane). Currently, when biogas production ceases the active sludge sedimentation process is not monitored but operated on a fixed time basis. ...
  • On a finite domain magnetic localization by means of TMR triaxial sensors 

    Cerro, G; Ferrigno, L; Laracca, M; Milano, F.; Bellitti, Paolo; Serpelloni, Mauro; Casas Piedrafita, Óscar (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    The paper proposes the realization and the preliminary characterization of a short–range localization systems based on the measurement of magnetic fields. Fixed anchors that generate sinusoidal wave magnetic fields at ...
  • Electromagnetic characterization of 3D printed antennas employing conductive filament 

    Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Quílez Figuerola, Marcos; Mateu Mateus, Marc; Fernández Chimeno, Mireya; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Restricted access - publisher's policy
    This work presents the need to accurately define EM characterization of novel materials like the 3D conductive filament. Although these construction techniques and materials are currently used by the industry, the influence ...
  • Accelerating K-mer Frequency Counting with GPU and Non-Volatile Memory 

    Cadenelli, Nicola; Polo Cantero, José; Carrera Pérez, David (2018)
    Conference report
    Open Access
    The emergence of Next Generation Sequencing (NGS) platforms has increased the throughput of genomic sequencing and in turn the amount of data that needs to be processed, requiring highly efficient computation for its ...
  • Performance characterization of spark workloads on shared NUMA Systems 

    Baig, Shuja-ur-Rehman; Amaral, Marcelo; Polo Cantero, José; Carrera Pérez, David (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    As the adoption of Big Data technologies becomes the norm in an increasing number of scenarios, there is also a growing need to optimize them for modern processors. Spark has gained momentum over the last few years among ...
  • Battery aging impedance spectroscopy and incremental capacity analysis 

    Ovejas Benedicto, Victòria Júlia; Cuadras Tomàs, Àngel (ZAHNER-elektrik GmbH & Co. KG, 2017)
    Conference report
    Open Access
    We analize electrochemical LiFePO4 cells with impedance spectroscopy and incremental capacity analysis in order to establish a correlation with capacity fade. We found that polarization and diffusion impeances increased ...
  • Battery Impedance Spectroscopy obtained from Electrochemical Model 

    Miró Jané, Pol; Cuadras Tomàs, Àngel (2017)
    Conference report
    Open Access
    We investigate impedance spectra obtained from an electrochemical model using pulsed signals. We characterize the dependence of NiMH battery parameters such as electrodes porosity and conductivity on impedance. We are able ...
  • A novel algorithm for fast BCG cycle extraction in ambulatory scenarios 

    Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs Areny, Ramon (2016)
    Conference lecture
    Restricted access - publisher's policy
    A novel algorithm JDet for ballistocardiogram (BCG) cycle extraction is presented that is intended for the fast generation of ensemble averages in ambulatory scenarios where the ECG signal is not available. First, the ...
  • Impact of the mechanical interface on BCG signals obtained from electronic weighing scales 

    Casanella Alonso, Ramón; Gómez Clapers, Joan; Hernández Urrea, Marc; Pallàs Areny, Ramon (2016)
    Conference report
    Restricted access - publisher's policy
    This work analyzes the reproducibility of the BCG obtained from different weighing scales. First, the natural frequency of three commercial bathroom scales has been characterized by an impulse excitation test. Second, the ...
  • Direct pulse transit time measurement from an electronic weighing scale 

    Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs Areny, Ramon (2016)
    Conference report
    Restricted access - publisher's policy
    A novel method to measure Pulse Transit Time (PTT) from the force sensors of a modified electronic weighing scale is presented. The method relies on the relation between PTT and the interval between I and J waves of the ...
  • Enabling atrial fibrillation detection using a weight scale 

    Ayers, Brian; Beshaw, Connor; Serrano Finetti, Roberto Ernesto; Casas Piedrafita, Óscar; Pallàs Areny, Ramon; Couderc, Jean-Philippe (2016)
    Conference lecture
    Restricted access - publisher's policy
    Atrial fibrillation (AF) is a cardiac arrhythmia characterized by a highly irregular heart rate. It is the most prevalent arrhythmia in the general population in the United States and most developed countries, and ...
  • Online cellphone battery entropy measurement for SoH estimation 

    Cuadras Tomàs, Àngel; Meinert, Florian; Büschel, Paul; Kanoun, Olfa (2016)
    Conference report
    Restricted access - publisher's policy
    The widespread use of batteries requires knowledge of their state of health (SoH). In this paper we present a method to use entropy evolution as an aging indicator for batteries. Voltage, current and temperature are ...

View more