Now showing items 83-102 of 222
Lacruz Cruz, Amado (Date of defense: 2022-07-18)
Fluorinated chemicals, commonly known as per- and polyfluoroalkyt substances (PFASs), are widely used to obtain water-, oil- and stain-repellent texUles. The constant development and optimization of fluorochemicals for ...
Domenech Jardí, Ruth (Date of defense: 2011-11-18)
Increased wildfire activity over the last years has made fire managers to become more concerned about the effectiveness of current fuel treatment practices to reduce fire risk and severity. Fuel treatments lead to changes ...
Martínez Torrents, Albert (Date of defense: 2015-03-17)
The contact ofthe spent nuclear fuel (SNF) with water dueto a failure in the canister would be a conservative but still plausible hypothesis in the safety assesment of a deep geologic repository (DGR). Concrete and ...
Yamal Turbay, Evelyn (Date of defense: 2013-10-24)
The growth of population density in some areas of the planet and the increasing fast advances in technology and energy issues, have resulted in a remarkable increment in the necessity for goods and services, with a subsequent ...
Hoyo Pérez, Javier (Date of defense: 2014-10-17)
The photosynthesis is the process used by the plants and bacteria cells to convert the inorganic matter in organic thanks to the light energy. This process consist on several steps, being one of them the plastoquinone-9 ...
Serra, Maria (Serra Prat) (Date of defense: 2000-09-12)
To extend the knowledge of complex distillation arrangements for the separation of ternary mixtures and make them closer to implementation in industry is the motivation of this thesis work. Some design, operation, and ...
Alcaraz Segura, Aurora (Date of defense: 2019-02-28)
The energy model in the last decades has been dominated by the consumption of fossil fuels assuming a high environmental cost. Global warming and the destruction of the ozone layer are two examples of the deterioration ...
Tona Vásquez, Rodolfo Vicente (Date of defense: 2006-12-12)
En esta tesis se presenta un conjunto de metodologías que intentan facilitar la tarea de explotación de la información contenida en los datos históricos de proceso y como reaprovecharlos de modo de producir un impacto ...
Ramon Portés, Eva (Date of defense: 2005-01-01)
La rodopsina és el fotoreceptor visual responsable de la visió a baixa intensitat lumínica que es troba en les cèl·lules bastó de la retina. Aquesta proteïna és el model per excel·lència de la superfamília de receptors ...
Arnaldos Viger, Josep (Date of defense: 1986-06-03)
La tesi s’inicia fent una presentació del comportament dels llits estabilitzats magnèticament i de les seves aplicacions, així com de les limitacions que tenen degut a les pèrdues de les propietats magnètiques en certes ...
Roset Cazalda, Mª Lourdes (Date of defense: 2011-11-18)
La Ingeniería molecular se basa en el conocimiento de las características estereoelectrónicas que definen el reconocimiento molecular, que es el resultado de una complementariedad, tanto geométrica como electrónica, ...
Valls Vidal, Núria (Date of defense: 2004-11-03)
En la present tesi s'han realitzat estudis estructurals de DNA. L'obectiu era l'estudi detallat de les interaccions del DNA amb fàrmacs intercalants i amb metalls de transició. <br/>Tant els fàrmacs intercalants com els ...
Gallego Iradi, María Gabriela (Date of defense: 2016-10-24)
Plants analyzed in this study, aromatic plants (Rosmarinus officinalis, Thymus vulgaris and Lavandula officinalis) and other plants (Caesalpinia decapetala, Caesalpinia spinosa (Tara) and Morinda citrifolia (Noni)) have ...
Villafañe S., Diana (Date of defense: 2013-06-20)
This thesis is focuses on the study of the dispersion and combustion of a vapor cloud resulting from the escape of LNG and LPG. The consumption of natural gas and LPG is clearly growing, and is based on multiple storage ...
Corruchaga Guerrero, Agustín (Date of defense: 2021-10-04)
Evaporation from liquid spills is a phenomenon of great importance. This phenomenon has been studied by a number of researchers. However, most of them have focused on the evaporation of pure liquid spills or hydrocarbon ...
Cortés Izquierdo, Pilar (Date of defense: 1994-11-15)
Se ha estudiado mediante DSC:<br/><br/> 1) el efecto de la estructura química en la cinética de la relajación de entalpía en una serie de poliesteres lineales amorfos:<br/><br/>Poli (Isoftalato de Propileno), PPIP, Pol ...
Zárate López, Luís Guadalupe (Date of defense: 2004-04-22)
La tesis doctoral propone como objeto de estudio las llamas de un incendio forestal (forma, tamaño, intensidad de radiación, temperatura, etc.). Mediante su modelización matemática se propone la aplicación de un problema ...
Sánchez Jiménez, Margarita (Date of defense: 2017-10-25)
Since their discovery, the spectacular properties of polymers called "conducting" have given rise to an important field of study in order to obtain knowledge about them and their commercial application in many fields such ...
Grau Vilalta, M. Dolors (Maria Dolors) (Date of defense: 1999-11-18)
L'objectiu primordial d'aquest treball és la comparació entre el funcionament d'un reactor discontinu i un de semicontinu. Per això es porta a terme la modelització matemàtica d'ambdós, utilitzant programes propis emprant ...
Bermúdez Hermida, Marta Maria (Date of defense: 1998-12-18)
El trabajo realizado en la Tesis tiene como objetivo general el estudio estructural de nylons fundamentalmente mediante la difracción de rayos-x y la microscopía electrónica. Los nylons estudiados se agrupan en tres ...