Now showing items 70-89 of 262

    Development of advanced analytical methodologies based on gas chromatography coupled to mass spectometry for the determination of pops and vocs in the food and environmental field 

    Sales Martínez, Carlos (Date of defense: 2019-12-18)

    The work in this thesis has been clearly divided into three parts: In the first part, efforts were directed to obtaining a trace level quantification method for halogenated flame retardants using high-volume injections ...

    Development of Advanced Materials Based on Polymeric Ionic Liquids Formulated for Additive Manufacturing 

    Miralles-Comins, Sara (Date of defense: 2023-04-28)

    This thesis focuses on the design, development and characterisation of 3D printable materials based on polymeric ionic liquids. Additive manufacturing, commonly known as 3D printing, is a revolutionary set of technologies ...

    Development of New Hybrid Materials Based on Graphene Functionalised with Molecular Complexes. Evaluation of Properties and Catalytic Applications 

    Ventura Espinosa, David (Date of defense: 2020-07-10)

    En la presente tesis doctoral se ha descrito la síntesis de nuevos materiales híbridos basados en complejos organometálicos anclados mediante interacciones no covalentes sobre materiales derivados del grafeno. Los nuevos ...

    Development of perovskite optoelectronic devices on flexible substrates 

    Hassanabadi, Ehsan (Date of defense: 2022-03-08)

    In this thesis, first, the monolithic integration of a perovskite-based optical waveguide amplifier together with a photodetector on a nanocellulose substrate is shown to demonstrate the feasibility of a stretchable signal ...

    Development of transparent semiconductor oxides with optical properties for the functionalization of glass surfaces 

    González Cuadra, Jaime (Date of defense: 2023-12-15)

    The growing interest in semiconductor oxide thin films within materials science and engineering due to their unique physical, chemical, and electrical properties. These films, with thicknesses ranging from nanometers to ...

    Device Modelling of Perovskite Solar Cells using Small Perturbation Methods 

    Pulya Ravishankar, Sandheep (Date of defense: 2019-09-16)

    Perovskite solar cells (PSC) have emerged as an important player in the search for producing c1ean and renewable energy at high efficiencies. However, there exist several bottlenecks to maximise their efficiency and ...

    Diachasmimorpha longicaudata as Biological Control agent of the Mediterranean fruit fly, Ceratitis capitata: biotic and abiotic factors affecting its implementation in citrus crops of the Mediterranean basin 

    Harbi, Ahlem (Date of defense: 2017-02-24)

    Ceratitis capitata Wiedemann (Diptera: Tephritidae) is a cosmopolitan pest, originary from West-Africa, that has invaded almost all the temperate and tropical countries by the unwanted aid of the men. During its adaptation ...

    Different approaches to improve perovskite-based photovoltaic and optoelectronic devices 

    Vallés Pelarda, Marta (Date of defense: 2022-01-21)

    Halide perovskites have had a huge impact on different fields in the last decade due to their versatility and amazing optoelectronic properties. However, there are still some issues to improve towards their future utilization ...

    Diseño de metodología para la ubicación de vertederos de residuos de construcción y demolición para cuantificar los residuos a gestionar: Aplicación a la provincia de Castellón 

    Blanco Fernández, David (Date of defense: 2011-12-15)

    <p> Introducción</p> </p> <p>El problema ambiental que plantean los Residuos de Construcción y Demolición (RCD's) se deriva no sólo del creciente volumen de su generación, sino de su tratamiento, que todavía hoy es ...

    Diseño, síntesis y estudio de las actividades antiangiogénicas, antitelomerasa y antimitóticas de derivados de combretastatina A-4 

    Torijano Gutiérrez, Sandra Adela (Date of defense: 2013-07-17)

    Resumen de la Tesis Diseño, Síntesis y Estudio de la Actividad Antiangiogénica, Antitelomerasa y Antimitótica de Derivados de Combretastatina A-4 1. Introducción El cáncer se define como un conjunto de enfermedades ...

    Distribución de niveles de energía de sistemas N-electrónicos. Un estudio estadístico-cuántico 

    Rajadell Viciano, Fernando (Date of defense: 1994-04-05)

    En esta Tesis se ha obtenido una formulación general para la obtención de los momentos de la distribución espectral del hamiltoniano FCI de un sistema de fermiones interaccionantes

    Efecto de la gestión de la cubierta vegetal en el control biológico de Tetranychus urticae en mandarino clementino 

    Aguilar Fenollosa, Ernestina (Date of defense: 2011-04-15)

    <p>Tetranychus urticae es una especie plaga importante en cítricos que puede también alimentarse de otras especies asociadas a la cubierta vegetal de este cultivo. Para determinar el efecto de la gestión de la cubierta ...

    Efecto del templado sobre la permeación de gases a través de filmes de polietileno lineal de baja densidad obtenidos por coextrusión 

    Andrio Balado, Andreu (Date of defense: 1998-07-10)

    En esta tesis se han estudiado las propiedades difusivas de tres filmes de polietileno lineal de baja densidad a los gases nitrógeno, oxígeno y dióxido de carbono. Se ha medido los coeficientes de permeabilidad, difusión ...

    Efectos de las condiciones abióticas sobre las interacciones entre tres depredadores de Tetranychus urticae con distintos hábitos alimenticios 

    Urbaneja Bernat, Pablo (Date of defense: 2017-09-22)

    Tetranychus urticae es uno de los ácaros más perjudiciales que afectan a los huertos de cítricos en España, favorecido por altas temperaturas y baja humedad relativa. Sus principales enemigos naturales en este agro-ecosistema ...

    Effect of competition between Aphytis chrysomphali (Mercet) and A. melinus (Hymenoptera:Aphelinidae), on their coexistence and efficacy as biological control agents of Aonidiella aurantii (Hemiptera: Diaspididae) 

    Cebolla Sos, Ruth (Date of defense: 2018-03-13)

    The California red scale Aonidiella aurantii is considered a key citrus pest. Parasitoids of genus Aphytis are the most important natural enemies of A. aurantii. In the Mediterranean basin, the native A. chrysomphali and ...

    El cono de curvas asociado a una superficie racional. Poliedricidad. 

    Monserrat Delpalillo, Francisco José (Date of defense: 2003-07-23)

    A una superficie proyectiva X cualquiera se le pueden asociar una serie de conos convexos (cono de curvas, cono semiamplio y cono característico) que proporcionan información sobre la geometría de la superficie. En esta ...

    El papel de Anaphothrips obscurus (Müller) en la mejora del control biológico de Tetranychus urticae Koch 

    Gómez Martínez, María Antonia (Date of defense: 2017-07-21)

    En la presente tesis doctoral se estudia la contribución del trips Anaphothrips obscurus (Müller) en el control biológico por conservación del ácaro plaga Tetranychus urticae Koch cuando se utiliza una cubierta vegetal de ...

    Elastic, Electrostatic and Magnetic Properties in Colloidal Quantum Wells 

    Llusar Camarelles, Jordi (Date of defense: 2022-06-22)

    The goal of this Ph.D. dissertation is to provide a better understanding of the photophysics of CdSe NPLs and CdSe-based hetero-NPLs through theoretical modelling of the electronic structure. We consider homo- and ...

    Electronic and magnetic factors in the design of optimum catalysts for hydrogen fuel cells 

    Biz, Chiara (Date of defense: 2022-02-24)

    Fuel cells represent one of the most promising energy storage system nowadays. Nonetheless, several obstacles need to be overcome in order to commercially exploit this technology. One of them lies in the efficiency loss ...

    Electrophysiological characterization of membrane permeability: from protein channels to nanoparticles 

    Perini, Deborah Aurora (Date of defense: 2022-12-14)

    Cell membrane permeability is modulated by complex dynamical structures created by objects interacting with the lipid bilayer. Paying attention to the kinetics of ion transport in response to different bioelectrochemical ...