Now showing items 144-163 of 218

    Nanoestructuras de TiO2 de baja dimensionalidad para la obtención fotocatalítica de hidrógeno 

    Martínez Martínez, Gabino Lester (Date of defense: 2019-07-11)

    Hydrogen is one of the most promising solutions for the energy future, since its combustion only produces water vapour, so it does not pollute. In addition, it can be obtained from abundant and renewable substances. Fuel ...

    Nanofiltration and hybrid sorption : ultrafiltration processes for improving water quality 

    Pagès i Hernando, Neus (Date of defense: 2016-09-15)

    Reliable access to freshwater is one of the fundamental pillars for our society. Freshwater scarcity has become a major concern in many arid and sem i-arid countries worldwide to s uch an extent that water s upply for ...

    Nanomaterials for controlling bacterial pathogens and resistance occurrence 

    Ivanova, Aleksandra Asenova (Date of defense: 2022-03-11)

    lnfectious diseases are the leading cause of death worldwide while the constantly raising antimicrobial resistance (AMR) is a major concern for the public health. During the infection establishment bacteria! pathogens ...

    Nanostructured coatings for controlling bacterial biofilms and antibiotic resistance 

    Ivanova, Kristina Dimitrova (Date of defense: 2017-01-27)

    The accelerated emergence of drug resistant bacteria is one of the most serious problems in healthcare and the difficulties in finding new antibiotics make it even more challenging. To overcome the action of antibiotics ...

    New trends for conducting hazard & operability (HAZOP) studies in continuous chemical processes 

    Dunjó Denti, Jordi (Date of defense: 2010-02-18)

    Identifying hazards is fundamental for ensuring the safe design and operation of a system in process plants and other facilities. Several techniques are available to identify hazardous situations, all of which require their ...

    Nutrient recovery from waste water treatment plant by sorption processes : technical and economic analysis 

    You Chen, Xialei (Date of defense: 2018-11-29)

    In the last years has been performed a huge number of research related to nutrients (mainly N and P) recovery from waste water in order to promote their reuse and also to avoid eutrophication. Recovering nutrient from waste ...

    Obtaining micro- and nanotextured functional surfaces on thermoplastics via injection moulding techniques using laser textured metallic inserts and NIL (nano-imprint lithography) -textured polymeric films 

    Sáez Comet, Carlos (Date of defense: 2023-10-06)

    (English) Surfaces with special functionalities owed to their surface topographies or textures are present all around us in nature. Millions of living organisms around us profit from those special functionalities thanks ...

    Optimization strategies for efficient dosage of H2O2 in Fenton and photo-Fenton processes 

    Yu, Xiangwei (Date of defense: 2021-07-07)

    This Thesis work addresses the challenge of designing hydrogen peroxide (H2O2) dosage Strategies for improving Fenton and photo-Fenton applications. The determination of the H2O2 dosage scheme that minimizes hydrogen ...

    Partial oxidation of methane into syngas at low temperature 

    Fazlikeshteli, Shiva (Date of defense: 2023-10-27)

    (English) Syngas (a mixture of H2 and CO) is a versatile feedstock that can be used to produce a wide range of chemicals and fuels. For that reason, there is a great interest to optimize and explore new routes for its ...

    Polyesters containing cyclic carbohydrate-based units obtained by ring opening polymerization 

    Morales Huerta, Juan Carlos (Date of defense: 2018-02-26)

    In recent years, as a result of climate change, the interest in sustainable materials has increased dramatically. The replacement of compounds of petrochemical origin by bio-based has spread to all areas of chemistry. ...

    Polymer-zirconia based ceramic composites produced by 3D-printing 

    Hodásová, L'udmila (Date of defense: 2022-11-09)

    (English) Zirconia ceramic is widely used in numerous fields, such as electronics, machinery, and biomedical applications, due to its excellent properties as chemical resistance, thermal stability, electrical resistance, ...

    Polymers and peptide-polymer conjugates as bioactive platforms and carriers for the encapsulation of biomolecules 

    Maione, Silvana (Date of defense: 2017-09-14)

    In the last decade, conductive polymers have received great interest in both scientific and technological levels due to the electroactive properties exhibited by these materials. For this reason, the main aim of this ...

    Posttranslational modifications of human M3 muscarinic acetylcholine receptor: zooming in its functional implications 

    Romero Fernández, Wilber (Date of defense: 2011-05-20)

    The human M3 muscarinic acetylcholine receptor (M3R) regulates many important physiological roles in the central and peripheral nervous systems, and it is involved in the pathophysiology of several neurodegenerative and ...

    Proactive management of uncertainty to improve scheduling robustness in proces industries 

    Bonfill Teixidor, Anna (Date of defense: 2006-12-18)

    Dinamisme, capacitat de resposta i flexibilitat són característiques essencials en el desenvolupament de la societat actual. Les noves tendències de globalització i els avenços en tecnologies de la informació i comunicació ...

    Processos físico-químics i biològics en el tractament d'aigües àcides de mina: Aplicació a barreres permeables reactives 

    Gibert Agulló, Oriol (Date of defense: 2004-07-21)

    CATALA <br/> <br/>La contaminació de les aigües superficials i subterrànies representa el problema mediambiental més greu a què s'ha d'enfrontar la indústria minera, a causa de les denominades aigües àcides de mina (AAM), ...

    Processos que afecten la mobilitat de l'urani en entorns hiperalcalins oxidants i sediments contaminats 

    Meca Fàbrega, Alejandra (Date of defense: 2009-05-12)

    L'urani es troba present en el medi a baixes concentracions en roques, sòls i aigua, però l'activitat industrial i el desenvolupament de la tecnologia nuclear ha suposat la generació de grans quantitats de residus i zones ...

    Producción de hidrógeno a partir de amoniaco en reactores de paredes catalíticas 

    Lucentini, Ilaria (Date of defense: 2021-11-05)

    Due to the problems associated with the generation and storage of hydrogen in portable applications, the use of ammonia fer the on-site production of hydrogen through its catalytic decomposition has been proposed. This ...

    Producción de hidrógeno a partir del reformado con vapor de dimetil éter utilizando monolitos catalíticos 

    Ledesma Rodríguez, Cristian (Date of defense: 2011-11-25)

    El modelo actual del consumo energético basado en la utilización de combustibles fósiles requiere un replanteamiento debido al agotamiento de éstos y a las emisiones de gases contaminantes que generan. La obtención de ...

    Quantitative dispersion analysis of leakages of flammable and/or toxic substances on environments with barriers or semi-confined 

    Miralles Schleder, Adriana (Date of defense: 2015-07-08)

    With the industrial and technological development of the present-day society, the presence of flammable and toxic substances has increased in a growing number of activities. Dispersion of hazardous gas releases occurring ...

    Rare earth elements recovery from E-wastes by solvent extraction and supported liquid membrane processes 

    Pavón Regaña, Sandra (Date of defense: 2019-11-28)

    Nowadays, rare earth elements (REEs) have gained importance due to their indispensable and critical use in many high-tech industries like hybrid cars, fluorescent lamps, flat screen televisions, mobile phones, disc drives ...