Now showing items 5257-5276 of 5539
Prat Masramon, Gabriel (Date of defense: 2016-02-01)
In this thesis we study feature subset selection and feature weighting algorithms. Our aim is to make their output more stable and more useful when used to train a classifier. We begin by defining the concept of stability ...
Derqui Zaragoza, Belén (Date of defense: 2017-12-04)
Context: Globalization, increased competition for natural resources, the rise of non-financial performance indicators in decision making, among other new trends have made sustainability more and more relevant and linked ...
Hjaila, Kefah (Date of defense: 2016-09-06)
Current Supply chain (Se) decision support tools are devoted to the optimization of one objective function from a bias centralized perspective, without considering the coexistence with other participants and their uncertain ...
Tanasić, Ivan (Date of defense: 2017-02-17)
Programmable Graphics Processing Units (GPUs) have recently become the most pervasitheve massively parallel processors. They have come a long way, from fixed function ASICs designed to accelerate graphics tasks to a ...
Gemmi, Gabriele (Date of defense: 2024-02-22)
(English) This thesis aims to investigate the efficacy and applicability of Wireless Backhaul Network (WBN) in two divergent contexts: ultra-dense urban networks for 5G and connectivity solutions for rural or digitally ...
Chasapis, Dimitrios (Date of defense: 2019-04-24)
Current large scale systems show increasing power demands, to the point that it has become a huge strain on facilities and budgets. The increasing restrictions in terms of power consumption of High Performance Computing ...
Tosi, Riccardo (Date of defense: 2021-12-21)
Recent developments of high performance computing capabilities allow solving modern science problems employing sophisticated computational techniques. However, it is necessary to ensure the efficiency of state of the art ...
Orellana Bech, Bernat (Date of defense: 2024-03-07)
(English) The study of the colonic volume has strong relevance in gastroenterology and contributes to the diagnosis and research of lowseverity diseases such as constipation, diarrhea, or Irritable Bowel Syndrome. In the ...
Cousin, Seth Lucien (Date of defense: 2016-09-12)
Attosecond science investigates the realm of processes that happen in fleetingly short passages of time. One attosecond to one second, is what one second is to the age of the universe! Advances in lasers and specifically ...
Obón Estrada, Eleonora (Date of defense: 2019-11-27)
The rare earth elements (REEs) are essential ingredients for the development of modern industry and the transition to a more sustainable economy model. The unique physicochemical features of these elements, such as their ...
Zorrilla Martínez, Rubén (Date of defense: 2020-09-21)
This thesis develops a numerical tool (the Virtual Wind Tunnel, VWT) for the resolution of problems involving fluid flow around structures. Due to the limitations that traditional methods may have in this context, the VWT ...
Sancho Lacalle, Irene (Date of defense: 2018-12-12)
Most of the urban wastewater treatment plants (WWTP), based on conventional activated sludge (CAS) systems, cannot be considered sustainable since the concept of resources (energy and nutrients) recovery is not taken into ...
Vázquez Gallego, Francisco (Date of defense: 2016-07-19)
This thesis aims at contributing to overcome two of the main challenges for the deployment of M2M networks in data collection scenarios for the Internet of Things: the management of massive numbers of end-devices that ...
Navarro Cuenca, Anna (Date of defense: 2012-06-18)
Field biomonitoring based on molecular biomarkers detects early warning signals of stress suffered by organisms exposed to contamination. The lower part of the Ebro River basin has a long pollution history related to the ...
Aparicio Bernat, Francisco Luis (Date of defense: 2016-09-22)
In the coming decades, global warming will affect the biogeochemical cycles evolution, particularly the carbon cycle. In this context, it is necessary to gain knowledge on the Earth natural mechanisms to relieve the ...
Saloustros, Savvas (Date of defense: 2017-11-29)
Numerical methods aid significantly the engineering efforts towards the conservation of existing masonry structures and the design of new ones. Among them, macro-mechanical finite element methods based on the smeared crack ...
Morral Molto, Eloi (Date of defense: 2021-12-03)
The growth in world population has led to a significant increase in the generation of wastes (solid, liquid and gaseous). Waste gas is probably the major issue in the case of waste treatment, due to the fact that once the ...
Roca Sancho, Jordi (Date of defense: 2013-10-16)
This thesis deals with uncertainty in radar-based precipitation estimation and nowcasting in two ways: its quantification in a probabilistic manner, and its reduction in the precipitation estimates. A straightforward way ...
Font Comas, Joan (Date of defense: 1987-05-28)
L'objectiu bàsic del present treball és, el de, partint de l'estudi de Martínez-Quintanilla, plantejar un sistema informatitzat per al traçat de la perspectiva curvilínia de pantalla cilíndrica, capaç de poder representar, ...
Brunner, René (Date of defense: 2011-11-18)
The increasing amount of data and the number of nodes in large-scale environments require new techniques for information management. Examples of such environments are the decentralized infrastructures of Computational ...