Recent Submissions

  • 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
    Restricted access - publisher's policy
    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 ...
  • Can Tusell, una casa adaptada para personas con diferentes discapacidades en terrassa 

    Bestraten Castells, Sandra Cinta; Hormias Laperal, Emilio; Guasch Murillo, Daniel; Àlvarez Suau, Maria Hortènsia; Casas Piedrafita, Óscar (2014)
    Conference report
    Open Access
  • Interfaz gestual para el acceso a plataformas digitales y control de plataformas para el ocio 

    Hornero Ocaña, Gemma; Quílez Figuerola, Marcos; Casas Piedrafita, Óscar (2015)
    Conference lecture
    Open Access
    La tetraplejia y la paraplejia son discapacidades que resultan de las lesiones en la médula espinal y trastornos neuromusculares tales como la parálisis cerebral. Los pacientes que las padecen presentan diferentes niveles ...
  • Effects of stray capacitance to ground in bipolar water impedance measurements based on capacitive electrodes 

    Pallàs Areny, Ramon; Aliau Bonet, Carles (2015)
    Conference report
    Open Access
    Liquid impedance measurements based on capacitive (or contactless) electrodes Overcome electrode polarization problems but are affected by stray capacitance from the material being measured to ground, the same as measurements ...

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