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Haixia Lyu defends his thesis on contributions to ionospheric modeling with GNSS in the mapping function, tomography and characteristics of polar electronic content
Haixia Lyu telematically defended her thesis supervised by Professor Manuel Hernández-Pajares on November 17, 2020, entitled "Contributions to ionospheric modeling with GNSS in the mapping function, tomography and characteristics of polar electronic content." The thesis focuses on determining the vertical distribution of low- and high-resolution electron content from data from global positioning systems, GNSS (such as the American GPS) taken from terrestrial receivers and aboard orbiting satellites. low, and to improve knowledge of the climatology of the ionosphere in the polar and mid-latitude northern regions
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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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Herbert Donatus Halpaap defends his thesis on speckle in lasers
Herbert Donatus Halpaap defended his thesis co-directed by Cristina Masoller and Meritxell Vilaseca Ricart on December 9 at the Terrassa Campus entitled "Experimental study of speckle generated by semiconductor light sources: application in double-pass images", the thesis presents a study on the effect of a vibrating mirror to reduce speckle interferometry in lasers
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Hossameldin Mohamed Selim Mohamed Selim presents his thesis on 3D reconstruction of defects using a non-destructive testing method based on laser-induced ultrasound
Hossameldin will present his thesis co-directed by Crina Cojocaru (Dept. of Physics) and Miguel Delgado prieto (Dept. of Electronic Engineering), on July 21 at the Terrassa Campus. Entitled "Hybrid non-destructive technique for volumetric defect analysis and reconstruction by remote laser induced ultrasound", the thesis is on the design, study and implementation of a non-destructive non-destructive testing (NDT) method. for the analysis of metallic objects containing internal defects or fractures. An opto-acoustic hybrid technique is proposed that combines ultrasound generated by laser impact as an exciter and ultrasound transducers as receivers.
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Huixia Lu, a scholarship student from the China Scholarship Council (2016), defends her thesis on the behavior of proteins and small molecules in the environment of cell membranes
La Huixia Lu defended his thesis directed by Jordi Martí Rabassa. on September 29, 2020 at the Nort Campus of the UPC, entitled "Exploring free-energy landscapes and microscopic interactions of selected small-molecules and proteins with cell membranes", the thesis describes the interactions at the atomic level between molecular systems of biological interest and pharmacist with the constitutive lipids of cell membranes.
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Identified a plastic crystal useful as an ecological cooler in refrigerators and air conditioners
Researchers from the physics department together with the University of Cambridge and the University of Barcelona have identified a solid material, respectful with the environment, which could replace the hydrofluorocarbon gases (HFC) and hydrocarbons (HC) -highly contaminants and flammable- that are used currently in most refrigerators, air conditioners and cooling systems
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Important results published on a molecular mechanism that causes a type of serious cardiac arrhythmia
Blas Echebarria and Enric Àlvarez, researchers in the Physics department of the research group in Computational Biology and Complex Systems (BIOCOM-SC), together with researchers from the Heart Rate Analysis and Control (ANCORA) research group at the UPC, and other international scientists have identified one of the molecular mechanisms responsible for cardiac alternation. This is an alteration of the heart rhythm that facilitates the induction of ventricular fibrillation, a potentially lethal type of arrhythmia. This discovery, published in the journal Circulation Research (AHA Jounals), opens the door to new pharmacological treatments.
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Improving performance of racetrack microtrons
Yuri Kubyshin from NEMEN research group along with physicists from the Skobeltsyn Institute of Nuclear Physics of the Moscow State University have published a paper devoted to an analysis of beam dynamics in electron accelerators of the racetrack microtron (RTM) type and searching for improvements of their characteristics.
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Innovative methods for selectively fragmenting molecules with laser X-rays are proposed
Carles Serrat Jurado, a professor in the Department of Physics at the UPC, has demonstrated in research that the interior of a molecule can be modified locally and selectively by applying hard X-ray lasers. The work has been published in the reference scientific journal 'The Journal of Physical Chemistry'
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Interacting polarons : Simulations of interacting quasiparticles in ultracold quantum gas
Quasiparticles are an essential tool to describe the complex processes arising from strong interactions in solids. These quasiparticles can be simulated and accurately studied in a radically different system, i.e., an ultracold quantum gas. Now scientists have been able to observe in an actual experiment how quasiparticles called Fermi polarons interact with each other. Their findings have been published in Nature Physics.
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