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Sergi Mas-Pujol defends his thesis on the management of imbalances between demand and air capacity using deep learning techniques
Sergi Mas-Pujol defended his thesis co-supervised by Dra. Esther Salamí and Dr. Enric Pastor on May 12, 2023 at the Baix Llobregat Campus. Entitled "Deep Learning techniques for Demand-Capacity Balancing", the thesis studies the use of artificial intelligence techniques to improve the detection of air regulations and how to smooth traffic in periods of high demand, proposing different models that have takes into account the needs of the main parties involved (network management entity and airlines) and a reinforcement learning model based on the use of images.
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Seyedeh Leila Panahi defenses her thesis on new Fe base High entropy metallic glass alloys.
Seyedeh Leila Panahi defended her thesis co-supervised by Pere Bruna and Eloi Pineda on May 8 at the campus Castelldefels. Entitled “Study of relaxation phenomena and local structure evolution in metallic glasses by means of Mossbauer and mechanical spectroscopy”
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Heat can freeze fluids in the quantum world
An international collaboration between researchers from Denmark, Spain and Austria, which includes the postdoctoral researcher at UPC, Juan Sánchez Baena, as first author, shows that heating does not always melt a solid material. Their discovery reveals how increasing the temperature of an ultracold quantum fluid can trigger its phase transition to a solid state.
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Characterization of orbit and clock errors of Galileo satellites, and determination of their failure probabilities by the ARAIM civil aviation augmentation system
Maria Teresa Alonso defended her thesis co-supervised by Jaume Sanz Subirana and Adrià Rovira Gracía on May 31 at the North Campus in Barcelona. Titled Galileo Broadcast Ephemeris and Clock Errors, and Observed Fault Probabilities for ARAIM. The thesis presents the characterization of the orbit and clock errors of the satellites of the European positioning system Galileo, and determines, observationally, their probabilities of failure.
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Cristhian Timoté defends his thesis on contributions in ionospheric modeling in real time
Cristhian Timoté defended his thesis co-supervised by Dr. Guillermo González-Casado and Dr. Miquel Escudero on March 27 at the North Campus. Entitled "Contributions to real-time monitoring of the ionosphere using GNSS signals", the thesis presents the set of algorithms implemented in real time to be able to model the ionosphere and offer high-precision corrections to GNSS users
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Jonathan Ordóñez Pimentel defends his thesis on light-matter coupling in ferroelectric materials
Jonathan Ordóñez defended his thesis coadvised by Jose Eduardo García and Michel Venet on the 24th of March in Campus Nord. Entitled "Theoretical and experimental investigation on the visible-light controlled functional properties in charged domain wall ferroelectrics", the thesis focuses in overcome some questions that remained to be solved concerning light-activated phenomena in ferroelectric materials.
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Marc Melgosa is defending his thesis on air traffic flow and capacity management
Marc Melgosa defended his thesis co-supervised by Dr. Xavier Prats and Dr. Andrija Vidosavljevic on March 22, 2023 at the Baix Llobregat Campus. Entitled "Enhanced Air Traffic Flow and Capacity Management under Trajectory Based Operations considering traffic Complexity", the thesis presents a new operational concept that integrates demand and capacity management in the same optimization problem, uses complexity metrics (in instead of the number of arrivals) to measure traffic and takes into account airspace user preferences allowing the possibility of using alternative trajectories to avoid airspace congestion
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Discovery of a neutron star that behaves like a black hole
An international scientific team, in which Yuri Cavecchi, from the physics department of the UPC has participated, and led by the Instituto de Astrofísica de Canarias (IAC), has found a neutron star that steals matter from a companion star in a violent and unstable. This process, previously only observed in black holes. The study is published in the journal Nature.
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Are dislocations in solid helium “supersolid”?
A team of researchers from the Universitat Politècnica de Catalunya (Spain), Universidade Estadual de Campinas (Brazil) and Stanford University (USA) performed advanced quantum atomistic simulations to assess the Bose-Einstein condensate fraction of solid helium at zero temperature containing dislocations, a defective system that previously had been proposed to be “supersolid”
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Created a method to prevent and detect forest desertification
Giulio Tirabassi and Cristina Masoller have created an algorithm based on the analysis of satellite data provided by NASA's MODIS instrument that allows preventing the definitive destruction of natural environments
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