categoría = "Tesis doctoral (doctoralThesis)"

Encontrado 182.564 documentos, página mostrada 1 de 18257

Revalorización catalítica de glicerina para una obtención más respetuosa con el medio ambiente de aditivos para combustibles

Descripción: There is an increasing interest in searching new processes to transform glycerol (surplus in the biodiesel manufacture) into high-added value products. In addition, the use of microwaves for the synthesis and modification of materials is becoming an important tool to reduce the synthesis time (energ...
Idioma(s): Español

Modelling of small capacity absorption chillers driven by solar thermal energy or waste heat

Creador(s): Labus, Jerko
Descripción: This research deals with the development of the simple, yet accurate steady-state models of small capacity absorption machines which are based on highly reliable data obtained in the state-of-the-art test bench. These models can further be used in simulation tools or to develop supervisory control s...
Idioma(s): Inglés

Caracterización fenotípica y molecular de hongos filamentosos oportunistas: scedosporium, acremonium, phialemonium, lecythophora y paecilomyces

Descripción: Scedosporium, Acremonium, Phialemonium, Lecythophora and Paecilomyces were studied. In Scedosporium, the study has focussed on choosing the best tool for the characterization of S. aurantiacum and S. prolificans. As for the other genera, studies have focussed on morphological and molecular identific...
Idioma(s): Español

Performance modelling and validation of biomass gasifiers for trigeneration plants

Creador(s): Puig Arnavat, Maria
Descripción: This thesis develops a simple but rigorous model for simulation, design and preliminary evaluation of trigeneration plants based on biomass gasification. It includes a review and study of various models proposed for the biomass gasification process and different plant configurations. A modified ther...
Idioma(s): Inglés

Caracterización de los efectos biológicos de los polifenoles en la inflamación y el metabolismo : nuevas perspectivas nutricionales

Descripción: Obesity is perhaps the most common disease worldwide. The WHO qualify it as a pandemic disease. The excess of energy ingested is stored in adipose tissue, specifically designed to perform this function. But too much can be therefore, that adipose tissue is overwhelmed and must derive the excess of f...
Idioma(s): Español

'Tu mira la foto, pero no se la enseñes a nadie'. Análisis de la práctica fotográfica, los discursos y las representaciones de niños y adolescentes en el contexto de talleres de fotografía participativa. Dos estudios de caso.

Descripción: This Thesis is a reflection of the process that has emerged from testing a methodology involving two different groups of children and teenagers in an urban environment. This methodology is based on the transference of the photographic camera to the participants with the final purpose of documenting ...
Idioma(s): Catalán

Determination of banned sudan dyes in culinary spices through spectroscopic techniques and multivariate analysis

Descripción: This thesis is focused at developing multivariate analytical screening methodologies for determining the adulteration of culinary spices with Sudan I, II, III and IV dyes. Such dyes are prohibited to be used as additive in foods according to the European legislation because they are Class 3 carcinog...
Idioma(s): Inglés

Hyperbranched polymers and other highly branched topologies in the modification of thermally and uv cured expoxy resins

Creador(s): Foix Tajuelo, David
Descripción: ABSTRACT Epoxy resins are one of the most used polymers in the field of technological applications. However, they present some drawbacks being the most important the following: they are inherently brittle materials; they present excessive thermal resistance that limits their reworkability; and the s...
Idioma(s): Inglés

La amplitud de la dieta cárnica en el Pleistoceno medio peninsular: una aproximación a partir de la Cova del Bolomor (Tavernes de la Valldigna, Valencia) y del subnivel TD10-1 de Gran Dolina (Sierra de Atapuerca, Burgos).

Creador(s): Blasco López, Ruth
Descripción: Subsistence diversification is achieved by adding different species to a diet. From the Broad Spectrum Revolution approach, several explanations have been proposed to explain this diversity in the food at the end of Pleistocene in Europe and Near East, such as demographic, ecological, nutritional an...
Idioma(s): Español

Utilización de microondas y ultasonidos en la preparación de hectoritas mesoporosas para su aplicación como soportes de catalizadores de cobre en la reacción catalítica de hidrogenólisis de glicerol a 1,2-propanodiol.

Descripción: El principal objetivo de esta tesis era la obtención de forma sostenible de arcillas mesoporosas del tipo hectorita, utilizando ultrasonidos en la mezcla de reactivos y microondas en el tratamiento hidrotérmico para disminuir los tiempos de síntesis, obteniéndose materiales con interesantes caracter...
Idioma(s): Español

Encontrado 182.564 documentos, página mostrada 1 de 18257

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