Collections in this community

Recent Submissions

  • Viscoelastic Fluid Simulation with OpenFOAM 

    Arnau Roca, Marc; Fernández Alburquerque, Alejandro (Universitat Politècnica de Catalunya, 2020-06-20)
    Coursework
    Open Access
    Since non-Newtonian fluids were discovered, their numerous interesting behaviours and potential uses have been investigated. Particularly, the frequency-dependent properties of wormlike micellar solutions have risen a ...
  • Simulation for fiber optics pulse propagation through a numerical solution of the Nonlinear Schrödinger Equation 

    Sierra Garzo, Èric; Mas Mendoza, Sergi (Universitat Politècnica de Catalunya, 2020-06-19)
    Coursework
    Open Access
    Fiber pulse propagation is a common scenario in optical experiments. This article is a numerical simulation of such propagation using the split-step Fourier method with a brief discussion on its effects. To conclude, ...
  • Simulation of electromagnetic fields of Terahertz Antennas using CST StudioTM 

    Canals, Eloi; Villasante, Jaume (Universitat Politècnica de Catalunya, 2020-06-19)
    Coursework
    Open Access
    The so-called `terahertz gap', which ranges from 0.3 to 10 THz, is the last span within the whole electromagnetic wave spectrum that has not been technologically or commercially developed. This frequency range has ...
  • Modified SEIR model for COVID-19 outbreak in Spain 

    Montoliu, Javier; Ruiz de la Cuesta, Paula (Universitat Politècnica de Catalunya, 2020-06-19)
    Coursework
    Open Access
    The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak has been ongoing for over 5 months now and has spread to nearly every country in the world from its initial outbreak in Wuhan, China. Europe, ...
  • Nonlinear control-based robust voltage regulation of a magnetically coupled multiport dc-dc power converter for automotive applications 

    Aquilué Llorens, David; París Escarcelle, David (Universitat Politècnica de Catalunya, 2020-06-19)
    Coursework
    Open Access
    This paper presents two different control strategies to regulate the output voltage of a magnetically coupled multiport dc-dc converter aimed at automotive applications. The two models, a feedback linearizing and an ...
  • Determination of the thermal expansion tensor from diffraction data 

    Navarro, Oriol; Velasco, Oriol (Universitat Politècnica de Catalunya, 2020)
    Coursework
    Open Access
    The thermal expansion of a material is a key feature in lots of physical applications. A useful tool to quantify this property in a crystalline structure is the deformation tensor, which depends on the temperature. Using ...
  • Optical sideband selection in Optical IQ modulators driven by RF tones 

    Amenabar, Núria; Molina, Maria; Torres, Mireia (Universitat Politècnica de Catalunya, 2020-06-19)
    Coursework
    Open Access
    This paper deals with IQ modulation using the nested Mach-Zehnder modulator, studying its different parameters and the effect of their value in the resulting signal. The main goal is to obtain the parameters for which a ...
  • Covid-19 analysis using the Gompertz Function 

    Pradas Rodriguez, Sergi; Rovira Ferrer, David; Simó Romaguera, Xavier (Universitat Politècnica de Catalunya, 2020-06-17)
    Coursework
    Open Access
    This report analyses the spread of COVID-19 in european countries, focusing especially on Italy and Spain, for which short-term predictions are made for the cumulative number of hospitalizations, ICUs, discharges and ...
  • Simulation of Browian Particles in a channel 

    Bataller, Josep; Villanueva, Guillermo; Xu Zheng, Ce (Universitat Politècnica de Catalunya, 2019-06-19)
    Coursework
    Open Access
    We study the behavior of ions with Brownian motion in the stationary state along a channel and the influence of external applied potentials and shapes of the channel. Our goal is to implement a 1-dimensional model that ...
  • Modelling and designing a Paul ion trap 

    Sanz, Axel; Mercader, Mikel (Universitat Politècnica de Catalunya, 2020-06-20)
    Coursework
    Open Access
    A Paul trap or quadrupole ion trap is a device designed to confine ions or charged particles in a given space. It consists of four electrodes that produce electric fields varying in time. The voltage applied to these electrodes ...
  • Comparative performance of linear and nonlinear control techniques applied to a permanent-magnet synchronous motor 

    Migó, Anna; Serrat, Roger; Vilà, Javier (Universitat Politècnica de Catalunya, 2020-06-02)
    Coursework
    Open Access
    Permanent-magnet synchronous motors (PMSM) are widely used in industrial appliances, wind and aerospace applications and also in electrical vehicles. This motor presents better effciency, higher power density, less weight ...
  • The Role of Temperature and Humidity in the Early Evolution of SARS CoV-2 

    Bravo, Andrea; Fernández, Lucas; Nicolau, Sebastià (Universitat Politècnica de Catalunya, 2020-06)
    Coursework
    Open Access
    The new coronavirus SARS CoV-2 which causes the COVID-19 was declared as a global pandemic at 11 of March 2020. Since then, many studies have been conducted in order to determine the importance of environmental factors,mainly ...

View more