Universitat Politècnica de Catalunya: Recent submissions
Now showing items 1681-1700 of 6086
Computational analysis of ion cyclotron resonance frequency heating for JET experiments
Heating plasmas to a relevant fusion temperature is one of the key aspects of magnetically confined fusion plasmas. Radio frequency (RF) heating with electromagnetic waves in the ion cyclotron range of frequencies (ICRF) ...
Aproximación del transporte de contaminantes en aguas someras mediante elementos finitos de alto orden
The objective of the doctoral thesis is to perform the numerical approximation of the transient convection-diffusion-reaction (CDR) vector equation in 2D with high order finite elements, quadratic, cubic and fourth order, ...
Investigations of topological phases for quasi-1D systems
For a long time, quantum states of matter have been successfully characterized by the Ginzburg-Landau formalism that was able to classify all different types of phase transitions. This view changed with the discovery of ...
Traffic control for energy harvesting virtual small cells via reinforcement learning
Due to the rapid growth of mobile data traffic, future mobile networks are expected to support at least 1000 times more capacity than 4G systems. This trend leads to an increasing energy demand from mobile networks which ...
Fluid structure interaction by means of reduced order models
The standard Fluid Structure Interaction coupling (velocity--pressure/displacement) is compared against two novel types of coupling, a Two Field coupling (velocity--pressure/displacement--pressure) and a Three Field coupling ...
Additive structures and randomness in combinatorics
Arithmetic Combinatorics, Combinatorial Number Theory, Structural Additive Theory and Additive Number Theory are just some of the terms used to describe the vast field that sits at the intersection of Number Theory and ...
Les Travesseres de Barcelona : necessitat de la Travessera Nord
The aim of this thesis is to reveal the importance of the “travesseres” as abstract elements which have the role of connecting two points (areas, fragments, sections) in a structure and of creating a consistent system that ...
High-order hybridizable discontinuous Galerkin formulation and implicit Runge-Kutta schemes for multiphase flow through porous media
This dissertation presents high-order hybridisable discontinuous Galerkin (HDG) formulations coupled with implicit Runge-Kutta (RK) methods for the simulation of one-phase flow and two-phase flow problems. High-order-methods ...
Resines acríliques modificades com a nous productes de readobament i/o adobament sense formol ni fenol
The leather manufacturing process consists of a sequence of complex chemical reactions and mechanical processes that allow turning skin, a putrefiable by-product of alimentary industry, into leather, a stable high-value-added ...
Novel continuous-wave infrared parametric sources and noise analysis of infrared upconversion detectors
The ability to manipulate frequency of light, through parametric frequency conversion sources based on X(2) nonlinear materials, offers an effective route to spectral regions unapproachable by conventional lasers. Most ...
Active flow control methods for aerodynamic applications
The cylinder in cross flow has been the subject of many numerical and experimental studies since it provides a deep insight of the physical phenomena occurring in a wide range of flow regimes. Despite a number of investigations ...
Diseño paramétrico de las estructuras desplegables : control límite de Movimiento
Deployable structures with articulated straight bars have the virtue of being lightweight, modular and transformable. This is how the architect Felix Escrig defined them, who left us a fantastic legacy on these structures. ...
Network resource allocation policies with energy transfer capabilities
During the last decades, mobile network operators have witnessed an exponential increase in the traffic demand, mainly due to the high request of services from a huge amount of users. The trend is of a further increase in ...
Study of graphene hybrid heterostructures for linear and nonlinear optics
Graphene is the first of the 2D-material family. It is formed by carbon atoms arranged in a honeycomb lattice, which confers it intriguing physical properties that are still being discovered nowadays. A fundamental advantage ...
Análisis del ciclo de vida en la construcción: evaluación de las etapas incorporadas de elementos de la vivienda y de su entorno urbano
The construction sector has the potential to contribute to the achievement of essential objectives of sustainable development, such as the fight against climate change, the defense of the environment or the design of cities. ...
Advanced GNSS-R instruments for altimetric and scatterometric applications
This work is the result of more than eight years during a bachelor thesis, a master thesis, and the Ph.D. thesis dedicated to the development of the Microwave Interferometric Reflectometer (MIR) instrument. It summarizes ...
Building a decision : support methodolgy to define ecosystem services bundles and to analyze trade-offs in diverse landscapes : application to Ecuadorian ecosystems
A key challenge of ecosystem management is determining how to manage multiple ecosystem services across landscapes. Enhancing provisioning ecosystem services (i.e., food, timber, etc.) might lead to tradeoffs between ...
Layout inference and table detection in spreadsheet document
Spreadsheet applications have evolved to be a tool of great importance for businesses, open data, and scientific communities. Using these applications, users can perform various transformations, generate new content, ...
Generalized Delaunay triangulations : graph-theoretic properties and algorithms
This thesis studies different generalizations of Delaunay triangulations, both from a combinatorial and algorithmic point of view. The Delaunay triangulation of a point set S, denoted DT(S), has vertex set S. An edge uv ...
Tatuaje tecnológico : Cuerpo, espacio doméstico y paisaje interactivos
The interaction builds humanity. It is the most human of us; Our social life is based on it. Interacting leads us to design objects that facilitate communication, understanding with other humans and understanding our ...
