Stabilized finite element formulations for the three-field viscoelastic fluid flow problem 

Castillo del Barrio, Ernesto (Date of defense: 2016-03-15)

The Finite Element Method (FEM) is a powerful numerical tool, that permits the resolution of problems defined by partial differential equations, very often employed to deal with the numerical simulation of multiphysics ...

Stabilized finite element methods for convection-diffusion-reaction, helmholtz and stokes problems 

Nadukandi, Prashanth (Date of defense: 2011-05-13)

We present three new stabilized finite element (FE) based Petrov-Galerkin methods for the convection-diffusionreaction (CDR), the Helmholtz and the Stokes problems, respectively. The work embarks upon a priori analysis ...

Stabilized reduced order models for low speed flows 

Reyes Sotomayor, Ricardo (Date of defense: 2020-03-23)

This thesis presents the a stabilized projection-based Reduced Order Model (ROM) formulation in low speed fluid flows using a Variational Multi-Scale (VMS) approach. To develop this formulation we use a Finite Element (FE) ...

Stable and efficient photoelectrodes for solar fuels production 

Ros Figueras, Carles (Date of defense: 2019-10-30)

The excessive consumption of non-renewable energy sources such as fossil fuels has lead the world to a global climate change, urging for new energy consumption habits together with developing cost- effective alternative ...

Stable isotopes analysis to assess abiotic and biotic remediation of groundwater polluted by chlorinated methanes 

Rodríguez Fernández, Diana (Date of defense: 2018-07-20)

Carbon tetrachloride (CT) and chloroform (CF) are chlorinated methanes (CMs) which have been released to the environment for decades owing to scarce waste management. Since they are dense non-aqueous phase liquids (DNAPLs), ...

Stable perchlorinated trityl radicals on surfaces for molecular (opto)electronics and spintronics 

De Sousa Rodríguez, Jesús Alejandro (Date of defense: 2022-12-16)

Electrónica molecular

Stable solutions of nonlinear fractional elliptic problems 

Sanz Perela, Tomás (Date of defense: 2019-06-18)

This thesis is devoted to study integro-differential equations. This type of equations constitutes nowadays a very active field of research which has important applications in modeling real-life phenomena where nonlocal ...

Stably stratified atmospheric boundary layer: study trough large-eddy simulations, mesoscale modelling and observations 

Jiménez Cortés, Maria Antònia (Date of defense: 2005-12-12)

La capa límit atmosfèrica és l'àrea directament influenciada per la presència de la superfície de la terra i la seva alçada és d'uns centenars de metres a uns pocs quilòmetres. Durant el vespre, el refredament radiatiu ...

Stand-alone hybrid renewable energy systems (HRES) 

Martínez Díaz, Maria del Mar (Date of defense: 2017-07-14)

End of Energy Poverty and achieving Sustainable Energy for all by 2030 is a universal challenge. 1.3 billion people without energy access and 2.8 billion people using unsustainable solid fuel for cooking and heating are ...

Standardisation of the Protection and Governance of Multimedia Content 

Rodríguez Luna, Eva (Date of defense: 2007-02-02)

Els sistemes de gestió de drets digitals controlen l'ús del contingut multimèdia a través de tota la cadena de valor digital. Aquesta tesis contribueix als diferents aspectes de la gestió dels drets digitals i de la protecció ...

Standing on their own two feet. The role of nursing education in the life stories of nurse teachers from Bangladesh 

Marcos Alonso, Susana (Date of defense: 2017-06-20)

The nursing profession in Bangladesh has undergone substantial development over recent decades but still faces significant challenges. A remarkable gap has been described between the institutionally-accepted image of nursing ...

The star formation history and the stellar initial mass function of the Milky Way disc. The population synthesis Besançon Galaxy Model in the Gaia era 

Mor Crespo, Roger (Date of defense: 2019-06-18)

AIMS: We develop a new theoretical framework to generate Besançon Galaxy Model Fast Approximate Simulations (BGM FASt) to address fundamental questions of the Galactic structure and evolution performing multi-parameter ...

Star formation in cluster environments at Mm and Submm wavelenghts 

Palau Puigvert, Aina (Date of defense: 2006-07-20)

[spa] En este trabajo se han observado 4 regiones de formación estelar en modo de cúmulo a longitudes de onda milimétricas y submilimétricas con alta resolución angular (2''-4'') y alta sensibilidad. Para llevar a cabo el ...

Stark-Heegner points and p-adic L-functions 

Casazza, Daniele (Date of defense: 2016-10-28)

Let K|Q be a number field and let Z(K,s) be its associated complex L-function. The analytic class number formula relates special values of Z(K,s) with algebraic invariants of the field K itself. It admits a Galois equivariant ...

Start of sediment mtion and resuspension in turbulent flows: applications of zero-mean flow grid stirred turbulence on sediment studies 

Medina Enriquez, Pablo (Date of defense: 2002-07-17)

The objectives of the thesis were, on the one hand, to test the possibilities of a well-known experimental configuration (oscillating grid mixing box), used to study stratified fluids in turbulent flows with zero-mean, on ...

STAT1 en la apoptosis inducida por fludarabina e inhibidores de Jak Kinasas en las celulas de LLC-B. Papel de las celulas adherentes en la apoptosis inducida por fludarabina 

Martínez Lostao, Luis (Date of defense: 2004-12-10)

State capacity, Catholic missions and education in colonial Mozambique 

Fernández Cebrián, Pablo (Date of defense: 2022-12-21)

[eng] Consolidating state capacity and ensuring inclusive access to quality education are two of the greatest challenges facing countries around the world today, and are particularly relevant for many African states. ...

State estimation, diagnosis and control using set-based approaches for LPV systems 

Zhang, Shuang (Date of defense: 2025-04-25)

(English) Considering that Linear Parameter-Varying (LPV) technique has been demonstrated as an effective way to represent nonlinear systems, results concerning the design of observers and controllers in LPV framework have ...

‘State narrative’ construction on Twitter. A case study around news stories on LGTB issues in Russia 

Dergacheva, Daria (Date of defense: 2021-07-30)

Aquesta tesi doctoral combina la teoria de la "narrativa estatal estratègica" amb els estudis de comunicació, les relacions internacionals i la recerca sobre xarxes socials. Pren com a estudi de cas la construcció i ...

Static and dynamic global stiffness analysis for automotive pre-design 

Cavaliere, Fabiola (Date of defense: 2022-04-06)

In order to be worldwide competitive, the automotive industry is constantly challenged to produce higher quality vehicles in the shortest time possible and with the minimum costs of production. Most of the problems with ...