Now showing items 126-145 of 172

    On the digital design and verification of pixel detector ASICs for fast timing applications and other fields of science 

    Egidos Plaja, Núria (Date of defense: 2021-02-25)

    La contribución principal de esta tesis consiste en el diseño, implementación y verificación, mediante el uso de herramientas digitales, de una red de distribución de reloj para FastICpix, un detector píxel híbrido capaz ...

    Optimization of Memristors for Information Storage and Neuromorphic Computing 

    Zhu, Kaichen (Date of defense: 2023-01-18)

    [eng] The total amount of global information to be stored and computed is increasing exponentially since the beginning of the 21st century. The semiconductor industry made great efforts to push the silicon-based integrated ...

    Optimized PET module for both pixelated and monolithic scintillator crystals 

    Sánchez Gonzalo, David (Date of defense: 2021-04-15)

    Time-of-Flight Positron Emission Tomography (TOF-PET) scanners demand fast and efficient photo-sensors and scintillators coupled to fast readout electronics. Nowadays, there are two main configurations regarding the ...

    Opto-Magneto-Electrical Nanoactuators for Wireless Cell Stimulation 

    Yue, Zhang (Date of defense: 2020-09-18)

    Clinical treatments based on electrical stimulation of excitable cells have been efficacious for a variety of diseases. However, these devices are often limited by their bulkiness, need for wiring electrodes and inability ...

    Paper-based bateries as key enablers for self-powered conductivity sensing 

    Ortega Tañá, Laura (Date of defense: 2021-05-19)

    This thesis presents the development of different self-powered devices that allow the conductivity measurement of liquid samples, from different types of water samples to biological fluids. The devices have been developed ...

    PARADISE: a model for energetic particle transport in the solar wind 

    Wijsen, Nicolas (Date of defense: 2020-04-30)

    Our modern society is becoming increasingly dependent on the constant stream of information sent out by satellites orbiting Earth. However, highly energetic rays traversing the near-Earth space environment pose a constant ...

    Peptide functionalized polymeric nanocarriers: Towards selective targeting of prostate cancer 

    Murar, Madhura (Date of defense: 2023-02-17)

    [eng] Prostate cancer is one of the most frequently encountered malignancies, with 1.4 million new cases in the past year, marking the second leading cause of deaths in men worldwide. Although it is known to be treatable ...

    Physical Cosmology in the Epoch of Large Surveys 

    Khalife, Ali Rida (Date of defense: 2022-04-08)

    Our understanding of the Universe has advanced tremendously in the past few decades, with General Relativity(GR) laying the ground for a successful model for the Universe, ΛCDM. However, there are still some fundamental ...

    Physical, optical and chemical properties of atmospheric aerosols in the western Mediterranean continental background 

    Ripoll Roca, Anna (Date of defense: 2015-07-02)

    Atmospheric aerosols have played a key role in the development of the Earth’s atmosphere. Without atmospheric particles rainfall would be nonexistent and the climate would be very different. However, anthropogenic emissions ...

    The physics of rotational atomic and photonic quantum fluids 

    Gallemí Camacho, Albert (Date of defense: 2017-09-13)

    In this thesis, we will study the superfluidity of condensed atomic and photonic systems, through the manipulation of rotational states, such as vortices or persistent currents. We will study Bose-Einstein condensates both ...

    The Planar Limit of N=2 Superconformal Field Theories 

    Rios Fukelman, Alan (Date of defense: 2022-07-06)

    This thesis is devoted to the study of the planar regime of N = 2 Lagrangian 4−dimensional superconformal field theories. In the first part of the thesis we study the matrix models that describe such theories upon performing ...

    Procesos innovadores basados en rutas químicas para tecnologías fotovoltaicas de capa fina de bajo coste y alta eficiencia 

    Bailo Bobi, Eduard (Date of defense: 2022-05-20)

    El trabajo presentado en esta tesis ha sido desarrollado en colaboración entre la empresa Francisco Albero S.A.U. (FAE) situada en L’Hospitalet de Llobregat (Barcelona, España) y el Institut de Recerca en Energia de Catalunya ...

    Processament de perfils de precipitació obtinguts amb radar Doppler 

    Garcia Benadí, Albert (Date of defense: 2023-01-10)

    [cat] En la actualitat les dades obtingudes amb instruments de teledetecció (mesures obtingudes a distància) formen una part essencial en l’àmbit de la meteorologia. Aquestes dades s’obtenen amb diversos sensors de tipus ...

    Pushing the boundaries of the LHCb rare decays program: search for the Λ0b→ Λγ decay 

    Marin Benito, Carla (Date of defense: 2018-04-04)

    The main goal of this thesis is to test the Standard Model (SM) of particle physics through the experimental analysis of rare processes, those that are suppressed in the SM. In particular, radiative b and rare strange ...

    Quantum Aspects of Space and Time 

    Tomasevic, Marija (Date of defense: 2021-09-09)

    In this thesis, we explore different ways in which spacetime exhibits peculiar properties when subjected to the rules of quantum mechanics. These rules are naturally implemented at the level of semiclassical physics, where ...

    Quasi One Dimensional Antimony Selenide Thin Film Solar Cells for Next Generation Photovoltaics 

    Vidal Fuentes, Pedro (Date of defense: 2022-03-04)

    This PhD thesis explores the quasi one dimensional Sb2Se3 absorber material and its application in substrate thin film solar cells in a SLG/Mo/Sb2Se3/CdS/i-ZnO/ITO configuration. The body of the thesis is introduced by a ...

    Radiation in strongly coupled gauge theories 

    Martínez Montoya, Jairo Javier (Date of defense: 2022-01-13)

    This thesis is devoted to the study of radiation in generic conformal field theories in four dimensions. In the first part of the thesis we explain at the classical level the implications of considering accelerated ...

    Recubrimientos de materiales compuestos CNF/cerámica y CNF/metal mediante proyección térmica por plasma atmosférico 

    Vidal, David R. (David Rodríguez Vidal) (Date of defense: 2017-06-23)

    Una máxima que se plantea en la sociedad actual es la consecución de una mayor eficiencia en los procesos industriales, reduciendo factores como el peso, mejorando la respuesta con los ciclos de los materiales y sobretodo ...

    Redox Flow Batteries: From Vanadium to Earth abundant organic molecules (Quinones) 

    Vázquez Galván, F. Javier (Date of defense: 2019-01-11)

    Along this Thesis dissertation book, which is focused on the topic of Redox Flow Batteries, many efforts have been done in order to improve different aspects of the all-Vanadium Redox Flow batteries (VRFBs) technology, as ...

    Signal Processing and Machine Learning for Gas Sensors: Gas Source Localization with a Nano-Drone 

    Burgués Calderón, Javier (Date of defense: 2019-07-09)

    Chemical source localization (CSL) by autonomous robots has been a topic of research since the early 1990s and still today remains elusive beyond simple scenarios. It has numerous potential applications, such as the ...