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Rinse de Swart defends his thesis on beach dynamics
Rinse de Swart defended his thesis, co-directed by Francesca Ribas Prats and Daniel Calvete Manrique, on July 19, 2022 at the North Campus. Titled "Development and interactions of surfzone morphological patterns", the thesis presents an analysis of the development of sand bars and the coastline, as well as their interactions, on the beach of Castelldefels using 8 years of observational data.
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Roger Ayats defends his thesis on coherent structures in the transition to turbulence
En Roger Ayats defended his thesis co-directed by l’Alvaro Meseguer and Fernando Mellibovsky on April 22nd at Campus Nord. The thesis, which is entitled "Exact coherent structures in the transitional regime of shear and centrifugal flows", studies the transition mechanisms in shear and centrifugal flows by computing and analysing the role of exact coherent structures.
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Sandeep Babu Gawali defends his thesis on intracavitat spatial filtering in semiconductor lasers
Sandeep Babu Gawali defended his thesis co-directed by Kestutis Staliunas and Jose Trull on December 17 at the Terrassa Campus. Titled "Intracavity spatial filtering in broad area semiconductor lasers", the thesis presents a study on the improvement of the spatial quality of laser beams emitted by high-power semiconductor lasers using photonic crystal filters implemented inside the laser cavity
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Seismicity at the Castor gas reservoir, offshore Spain, was controlled by pore pressure diffusion and the failure of loaded asperities on a shallow fault
An international team led by scientists at GFZ Helmholtz Centre Potsdam, in collaboration with colleagues by Spanish, Italian and US institutions, where collaborates Estefania Blanch from the department of Physics of the EPSEB, is publishing a new scientific work on induced seismicity in Europe in the Journal Nature Communications.
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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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Study of the effects of rotation in hydrodynamic models of accretion on compact stars
David Martin Rodriguez defended his thesis supervised by Jordi José on July 7, 2023 at the Diagonal-Besòs Campus. Entitled "Hydrodynamic Models of Accretion onto Rotating Compact Stars", the thesis focuses on investigating the effects of rotation and the instabilities caused by it (meridional circulation and turbulence due to differential rotation) in type I X-ray eruptions ( or type I X-Ray Bursts), which take place on the surface of accreting neutron stars. In particular, the study focuses on the study of the observable properties (light curves, recurrence periods and nucleosynthesis) of these eruptions
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Study of the movement and collective behavior of fish, robots and bees
Julia Múgica Gallart defended her thesis co-directed by Romualdo Pastor-Satorras and M. Carmen Miguel López on June 7, 2023 at the North Campus. Entitled "Collective Motion and Collective Decision-Making in Animal Groups: From Schooling Fish to Swarming Robots" the thesis focuses on empirically and theoretically investigating collective movement in shoals of fish, and collective decision-making in a swarm of robots emulating the selection of a new nesting site for bees.
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Teng Wang defends his thesis on self-adjusting and linearization techniques based on digital predistortion for communications in UAVs.
Teng Wang defended his thesis titled "A Fasto Engineering Approach High Efficiency Power Amplifier Linearization for Avionics Applications" on December 17 at EETAC, directed by Pere L. Gilabert (TSC-UPC). The thesis provides some guidelines for the design of linearizers based on digital predistortion (DPD) from several perspectives: y) improve the performance of open-loop DPD, ii) provide robustness and reduce the computational complexity of the parameter identification subsystem and, iii ) incorporation of machine learning techniques to favor the auto-tuning of power amplifiers and DPD linearizers with various degrees of freedom to be able to maximize energy efficiency while meeting linearity specifications.
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The analysis of a meteorite reveals secrets about the birth of the solar system
An international team of cosmochemists and astrophysicists, which includes Jordi José, a researcher from the Physics Department of the UPC and the Institut d'Estudis Espacials de Catalunya (IEEC), has discovered a meteorite grain forged during the final phases of a star disappeared a long time ago. Encapsulated in a meteorite collected in Antarctica, the tiny grain - only a few microns in size - has shed new light on the terminal phases of star life and how they sow the universe with the building blocks of new stars, planets and life.
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