Browsing Universitat Politècnica de Catalunya by Title

Study of a Compton camera based on CsI(Tl) scintillator bars for radiological environmental imaging

Rodríguez, María D. (Date of defense: 2020-10-26)

Compton cameras are used for radiological imaging, which can be useful in environmental applications and especially in determining the position of hidden sources. Current Compton cameras are based on pixelated detectors ...

Study of a hybrid system : Moving Bed Biofilm Reactor-Membrane Bioreactor (MBBR-MBR) in the treatment and reuse of textile industrial effluents

Yang, Xuefei (Date of defense: 2021-07-06)

Textile wastewater often shows high color concentration, containing a large range of organic chemicals, with high chemical oxygen demand as well as hard-degradation materials. Therefore, understanding and developing effective ...

Study of compatibilization methods for high density polyethylene and ground tyre rubber : exploring new route to recycle scrap tyres

Casas Carné, María del Pilar (Date of defense: 2010-03-25)

Cotxes, camions, tractors, avions... tots necessiten els neumàtics com a component imprescindible per al seu funcionament. Malauradament, degut al desgast per ús, els neumàtics tenen una vida útil limitada que obliga a ...

Study of conductive polymers, biomolecules and their hybrids through computational approaches

Triguero Enguídanos, Jordi (Date of defense: 2019-03-08)

In this thesis, different theoretical approaches designed to study a wide interval of length- and/or time-scales have been used to examine the microscopic properties of chemical systems with varying degrees of complexity ...

A study of cortical network models with realistic connectivity

Vegué, Marina (Date of defense: 2018-03-23)

Structure is fundamental in shaping the types of computations that neuronal circuits can perform. Explaining the laws that determine the connectivity properties of brain networks and their implications in neuronal dynamics ...

Study of Denitrification and Reductive Dechlorination Processes Applied to Groundwater Bioremediation

Calderer Perich, Montserrat (Date of defense: 2010-06-23)

La present tesi es basa en l'estudi dels processos de bioremediació com a tecnologies de descontaminació d'aqüífers.<br/>Concretament, es pretén estudiar la desnitrificació i la decloració reductiva com a tecnologies de ...

Study of early stages of Alzheimer's disease using magnetic resonance imaging

Casamitjana Díaz, Adrià (Date of defense: 2019-12-20)

Alzheimer's disease (AD) is a neurodegenerative disorder that constitutes the most common dementia pathology. It represents a global epidemic that expands exponentially as the life expectancy increases with no yet useful ...

Study of effects of cooking methods on physical properties and bioactive compounds in selected potato cultivars (Solanum tuberosum L)

Yang, Yali (Date of defense: 2015-09-29)

La patata es una fuente de carbohidratos, de versátil preparación y presentación. Dependiendo del proceso de cocción y de las características morfológicas y nutricionales de la patata estos efectos pueden ser positivos o ...

Study of electron heat transport in LHD and TJ-II

García Olaya, Jerónimo (Date of defense: 2006-04-20)

The magnetically confined plasmas study is one of the most promising research fields in the present days due to the high perspectives of unlimited and clean energy that fusion has generated. In this framework, the stellarator ...

Study of gene regulatory networks inference methods from gene expression data

Bellot Pujalte, Pau (Date of defense: 2017-05-08)

A cell is a the basic structural and functional unit of every living thing, it is protein-based an that regulates itself. The cell eats to stay alive, it grows and develops; reacting to the environment, while subjected to ...

Study of graphene hybrid heterostructures for linear and nonlinear optics

Alcaraz Iranzo, David (Date of defense: 2020-06-23)

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 ...

Study of hybrid FRP-FRCM superficial structural elements

Eskenati, Amir Reza (Date of defense: 2023-06-09)

(English) The most common composite materials for strengthening building structures are divided into two dif ferent types based on the matrix’s composition, organics (polymers) or inorganics (cement, lime). The hybrid ...

Study of ice content and hydro-mechanical behaviour of frozen soils

Mao, Yanxin (Date of defense: 2018-09-06)

The hydro-mechanical behaviour of soils during freezing and thawing is a coupled multi-physics process that has important practical applications. To cite but a few examples, on artificial ground freezing –to provide ...

Study of invariant manifolds in two different problems : the Hopf-zero singularity and neural synchrony

Castejón i Compnay, Oriol (Date of defense: 2015-07-16)

The main object of study of this thesis are invariant manifolds in the field of dynamical systems. We deal with two different and independent topics, namely, the study of exponentially small splitting of invariant manifolds ...

Study of Jet Fires Geometry and Radiative Features

Palacios Rosas, Adriana (Date of defense: 2011-01-11)

Entre els accidents greus que poden ocórrer a les instal·lacions industrials o durant el transport de substàncies perilloses, els dolls de foc presenten un especial interès. Tot i que tenen una distància relativament més ...

Study of longitudinal neurodegeneration biomarkers to support the early diagnosis of Alzheimer’s disease

Gavidia Bovadilla, Giovana (Date of defense: 2018-10-21)

Alzheimer’s Disease (AD) is a progressive and neurodegenerative disorder characterized by pathological brain changes starting several years before clinical symptoms appear. Earlier and accurate identification of those brain ...

Study of methods for the improvement of the anaerobic digestion of lipids and long chain fatty acids

Affes Salah, Rim (Date of defense: 2013-05-14)

Anaerobic digestion is a biochemical process that transforms diverse categories of biomass feedstock to renewable energy, in the form of methane, and contributes to resources conservation and greenhouse gases emission ...

Study of nanocomposites prepared from polyamides and biodegradable polyesters and poly(ester amide)s

Morales Gámez, Laura Teresa (Date of defense: 2012-01-23)

Polymer clay nanocomposites of polyamides and biodegradable polymers with three kinds of organomodified clays were prepared by different techniques (in situ polymerization, solution casting, and melt mixing). The polymers ...

Study of near field processes involved in the oxidative dissolution of the spent nuclear fuel and radionuclides release

Espriu, Alexandra (Date of defense: 2017-07-17)

Nowadays nuclear power plants (NPP) and dedicated facilities are storing the spent nuclear fuel (SNF). In the case of Spain, the NPP have enough space in their pools to keep storing the SNF produced from their activity; ...

Study of relaxation phenomena and local structure evolution in metallic glasses by means of Mössbauer and mechanical spectroscopy

Panahi, Seyedeh Leila (Date of defense: 2023-05-08)

(English) New research shows that global demand for alloys with unique properties for various applications increased drastically, and among all them the demand for high entropy and metallic glasses in the industry is ...