Universitat Politècnica de Catalunya: Recent submissions
Now showing items 1141-1160 of 5867
An effective method to study the Hopf-Galois module structure of certain extensions of fields
We develop a method to compute a basis of the associated order in a Hopf Galois structure H of the ring of integers O_L of an extension of number or p-adic fields L/K. We state and prove a necessary and sufficient condition ...
Algebraic and semi-algebraic phylogenetic reconstruction
Phylogenetics is the study of the evolutionary history and relationships among groups of biological entities (called taxa). The modeling of those evolutionary processes is done by phylogenetic trees whose nodes represent ...
On the mechanics of strain localization in plasticity : isotropic and orthotropic, cohesive and frictional, associated and non-associated models
In this thesis, two main topics have been covered: the mechanics of strain localization in plasticity and the performance of several mixed finite elements subjected to plastic strain localization. Throughout the thesis, ...
Perceived quality characterization of micro-textured injection moulded components for automotive interior applications
The present PhD thesis is framed within a collaborative project in which institutions such as the Universitat Politècnica de Catalunya Barcelona-Tech, the Centre Català del Plàstic and SEAT S.A have participated. The main ...
Digital hardware architectures for beam synchronous processing and RF of synchronization of particle accelerators
In Particle Accelerators, the Low-Level RF (LLRF) is the control system of the RF, and in the end, of the purpose of the machine, that is the energy transfer and acceleration of particles. It implements algorithms synchronizing ...
Force fields parametrization of lon-water interactions from density funcional theory based molecular dynamic simulations
The underlying topic of this thesis is the study of the application of the Force Matching (FM) algorithm to parameterize ion-water Force Fields using ab-initio simulations as reference. In order to do so three different ...
Breaking host-centric management of task-based parallel programming models
Heterogeneous platforms had become popular to increase the computational power of the systems within a constrained power budget. They are present in several systems, from embedded platforms and mobile devices to high-end ...
Novel techniques to improve the performance and the energy of vector architectures
The rate of annual data generation grows exponentially. At the same time, there is a high demand to analyze that information quickly. In the past, every processor generation came with a substantial frequency increase, ...
Análisis estructural probabilista orientado a evaluación del daño sísmico de edificios de mampostería no reforzada: aplicación a edificios aislados y agregados del distrito del Ensanche de Barcelona
Despite the fact that masonry is one of the oldest and most used building materials, the number of existing studies and experimental data, as well as the applicability of its results (i.e. extrapolation), are substantially ...
Qualitative properties of solutions to integro-differential elliptic problems
The thesis is devoted to the analysis of elliptic PDEs and related problems. It is mainly focused on the study of qualitative and regularity properties of solutions to integro-differential equations. The study of such ...
Mixing and chemical reaction hotspots in saline-freshwater mixing zones
Seawater intrusion presents one of the most unique and ubiquitous groundwater problems in the field of hydrogeology. Its complex boundary conditions coupled with variable density flow results in non-uniform flow which lead ...
La no equidad del impuesto inmobiliario: un análisis al valor catastral de vivienda en Mazatlán, mediante uso del método CRITIC y el método de Ratio
Methodological inconsistencies in land appraisal, legal (constitutional) lagging and the lack of a manual updated to current construction technology at the Cadastral Institute of Sinaloa State, along with inconsistencies ...
Hydraulic fills liquefaction : effect on quay stability
The starting point of this thesis is the failure of part of a quay wall under construction. The quay was divided in two phases, failure affected Phase 1 only. The failure and all the relevant associated information on quay ...
Modelling time-dependent plastic behaviour of geomaterials
Representing the time-dependent plastic behaviour of geomaterials is a critical issue in the correct application of tunnelling design techniques such as the convergence-confinement method or numerical modelling. Furthermore, ...
Development of novel instruments and techniques for passive microwave remote sensing
Earth Observation using satellites has helped to better model our planet. The goal of such systems is to provide large data sets to help to understand the effects of our actions on the climate, to predict storms in near ...
Urban mobility network design : functional analysis and modeling for a concentric city
Cities face problems influencing urban mobility, such as traffic growth, congestion, explosive population growth, urban sprawl. According to the literature, traffic, congestion, and urban development have an interrelationship ...
Observant els mapes i plànols : espai, elements i en la cartografia
“Observant els mapes i plànols” es un trabajo de investigación sobre los principales documentos gráficos (publicados) de la cartografía mundial y sobre todo, de Catalunya y Barcelona, en el que se descubren y discuten ...
Wireless sensors embedded in high permittivity lossy media
The design of wireless sensors for operation embedded in a medium with high losses creates a series of additional constraints that should be taken into consideration at design stage to enhance sensor performance. In such ...
Scheduling and resource management solutions for the scalable and efficient design of today's and tomorrow's HPC machines
In recent years, high-performance computing research became essential in pushing the boundaries of what men can know, predict, achieve, and understand in the experimented reality. HPC Workloads grow in size and complexity ...
Análisis composicional de la segregación socioespacial en la ciudad de Guadalajara, México
In recent years, rapid population growth and the accelerated urbanization of cities as a result of different economic, political and social forces have been accentuating the unequal distribution of the different socio-economic ...
