Recent Submissions

  • Propiedades vitreas emergentes en cristales moleculares 

    Gebbia, Jonathan Fernando (Universitat Politècnica de Catalunya, 2021-10-06)
    Doctoral thesis
    Open Access
    One of the most complex and unsolved problems in physics is the glass transition problem, in which the resulting state, the glass, exhibits unique and anomalous properties. During the transition, a kinetic freezing phenomenon ...
  • Dinàmica orientacional i estructura local en liquids moleculars sobrerefredats 

    Ortiz de Urbina Viade, Jordi (Universitat Politècnica de Catalunya, 2021-09-30)
    Doctoral thesis
    Open Access
    The aim of this thesis is to study, by means of molecular dynamics simulations, the behaviour of two molecular models at different temperatures, approaching the glass transition. One of them mimics methanol molecules, ...
  • Force fields parametrization of lon-water interactions from density funcional theory based molecular dynamic simulations 

    Calvo Minguillón, Ausias March (Universitat Politècnica de Catalunya, 2021-07-09)
    Doctoral thesis
    Open Access
    The underlying topic of this thesis is the study of the application of the Force Matching (FM) algorithm to parameterize ion-water Force Fields using ab-initio simulations as reference. In order to do so three different ...
  • Estudio de las propiedades fisicas en regiones chocadas en nebulosas planetarias 

    Castrillón Camacho, Arjuna (Universitat Politècnica de Catalunya, 2021-05-12)
    Doctoral thesis
    Open Access
    Planetary nebulae play a very important role in the chemical evolution of galaxies since they are responsible for returning nuclear-processed material to the interstellar medium. Observations of planetary nebulae are used ...
  • Ab-initio quantum Monte Carlo study of ultracold atomic mixtures 

    Cikojevic, Viktor (Universitat Politècnica de Catalunya, 2021-04-20)
    Doctoral thesis
    Open Access
    The properties of mixtures of Bose-Einstein condensates at T=0 have been investigated using quantum Monte Carlo (QMC) methods and Density Functional Theory (DFT) with the aim of understanding physics beyond the mean-field ...
  • Spacecraft state propagation and orbit determination using jet transport 

    Chen, Jianlin (Universitat Politècnica de Catalunya, 2021-04-23)
    Doctoral thesis
    Open Access
    The motion of space objects is strongly nonlinear and non-integrable since it is not only affected by the Keplerian central gravity of the Earth, but also subjected to some complex perturbations. Either an accurate and ...
  • Corrosion studies on Cu-based alloys 

    Xie, Chenyang (Universitat Politècnica de Catalunya, 2021-01-08)
    Doctoral thesis
    Open Access
    Cu-based alloys are widely applied in corrosive environments. The improvement of the alloys' corrosion resistance will significantly reduce energy consumption and overexploitation of resources. To increase the resistance ...
  • A geodetic approach to precise, accurate, available and reliable navigation 

    Parés Calaf, Maria Eulàlia (Universitat Politècnica de Catalunya, 2021-01-14)
    Doctoral thesis
    Open Access
    The determination of a body position, velocity and attitude is the purpose of the navigation techniques. The most extended navigation systems (INS/GNSS), as any other HW and SW system, provide precise and accurate enough ...
  • Analysis and degradation mechanisms of enamels, grisailles and silver stains on Modernist stained glass. 

    Beltran González, Martí (Universitat Politècnica de Catalunya, 2021-01-22)
    Doctoral thesis
    Open Access
    Materials and methods used in the production of modernist (late 19th and early 20th century) stained glass from the city of Barcelona with special regards to the degradation mechanisms of enamels, grisailles and silver ...
  • Analysis of energetic particle-driven Alfvénic instabilities in tokamak and stellarator plasmas using three dimensional numerical tools 

    Rakha, Allah (Universitat Politècnica de Catalunya, 2019-09-27)
    Doctoral thesis
    Open Access
    In this thesis, a detailed analysis of the experientially observed energetic particle-driven Alfvénic instabilities in tokamak and stellarator plasmas using three dimensional numerical tools based on the reduced MHD model ...
  • Correlations in spin-orbit coupled ultracold quantum gases 

    Sánchez Baena, Juan (Universitat Politècnica de Catalunya, 2020-12-14)
    Doctoral thesis
    Open Access
    The main goal of this thesis is the computation of ground state properties of quantum many-body systems under Spin Orbit coupling (SOC) interactions out of the ultradilute regime. We present two approaches to fulfill this ...
  • A fast engineering approach to high efficiency power amplifier linearization for avionics applications 

    Wang, Teng (Universitat Politècnica de Catalunya, 2020-12-17)
    Doctoral thesis
    Open Access
    This PhD thesis provides a fast engineering approach to the design of digital predistortion (DPD) linearizers from several perspectives: i) enhancing the off-line training performance of open-loop DPD, ii) providing ...

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