Now showing items 57-76 of 124

    Emissions de N2O i desnitrificació en sòls agrícoles i d'ecosistemes naturals. Factors de regulació 

    Saguer Hom, Elena (Date of defense: 1997-10-22)

    La major conscienciació actual dels problemes de pol·lució que acompanyen les pèrdues de N del sòl cap a l'atmosfera ha reorientat les investigacions cap a un coneixement més profund dels processos implicats en les emissions ...

    Endo-β-1,4-glucanasa para la fabricación de micro/nanocelulosa: propiedades y aplicaciones 

    Tarrés Farrés, Joaquim Agustí (Date of defense: 2017-07-10)

    In the recent years, significant interest on the production, characterization and application of cellulose nanofibers has brought out among scientific and technic authorities. This special attention mainly comes from their ...

    Environmental and socio-economical assessment of measures for the reduction of pharmaceuticals in rivers 

    Gimeno Melià, Vicent Pau (Date of defense: 2019-01-21)

    Pharmaceuticals are ubiquitous water contaminants that have shown detrimental effects on aquatic organisms at low concentrations. National authorities are starting to plan and implement measures (Wastewater treatment plants ...

    Estratègies prèvies al sacrifici que poden afectar el benestar animal i la qualitat de la carn de porcs de diferent genotip RYRI 

    Panella-Riera, Núria (Date of defense: 2011-07-27)

    The main objective of this thesis was to study (i) the effect of the fasting and lairage on carcass and technological meat quality and (ii) the inclusion of magnesium (MgCO3 and MgSO4) and/or tryptophan during 5 days before ...

    Estudi de l'efecte de l'administració de tilosina i doxicilina en els principals paràmetres nutricionals i de composició de l'ou de gallina 

    Roldós Noguer, Eva (Date of defense: 2015-12-16)

    The aim of the present work was to study the effects of tylosin A and doxycycline administration to laying hens on egg nutritional and compositional parameters during antibiotic treatment and after a withdrawal period. ...

    Estudi del comportament de sistemes biològics de depuració d'aigües residuals mitjançant models mecanístics, optimitzant la informació disponible de les dades obtingudes en línia 

    Colprim Galceran, Jesús (Date of defense: 1998-07-20)

    The use of simulation as an upgrading tool has been tested on real wastewater treatment plants (WWTP). Currently, the new WWTP have the possibility to monitor some process variables as the flows, oxygen concentrations and, ...

    Estudi fonamental i aplicat de l'etapa d'eliminació de tinta per flotació 

    Presta Masó, Susanna (Date of defense: 2006-07-14)

    La tesi realitza un estudi detallat dels principals processos que tenen lloc durant l'eliminació de tinta tòner per flotació.<br/>L'estudi del procés d'adhesió de tinta a la superfície de bombolles d'aire s'ha realitzat ...

    Estudio de la aplicación de sistemas basados en el conocimiento a la operación de una planta de tratamiento de residuos sólidos urbanos por valorización energética 

    Llauró Fábregas, Xavier (Date of defense: 1999-12-17)

    Una de las actuaciones posibles para la gestión de los residuos sólidos urbanos es la valorización energética, es decir la incineración con recuperación de energía. Sin embargo es muy importante controlar adecuadamente el ...

    Estudio de las comunidades microbianas de embutidos fermentados ligeramente acidificados mediante técnicas moleculares. Estandarización, seguridad y mejora tecnológica. 

    Martín Juárez, Belén (Date of defense: 2005-04-22)

    Los embutidos fermentados ligeramente acidificados son un grupo de productos tradicionales mediterráneos, caracterizados por un pH superior a 5,3.<br/>Para un control eficiente de la seguridad microbiológica de los embutidos ...

    Evaluación de las propiedades de materiales compuestos fabricados a partir de fibras semiquímicas de Leucaena collinsii y polipropileno 

    Granda Garcia, Luis Angel (Date of defense: 2016-07-29)

    This thesis studies the effect produced by the reinforcement of polypropylene with a semichemical fibre of Leucaena collinsii in the mechanical, thermal and water uptake properties. Samples with different reinforcement ...

    Evaluación de las propiedades mecánicas y micromecánicas de los materiales compuestos de polipropileno reforzado con fibras residuales provenientes del reciclado de recortes en la industria textil 

    Serra Bruns, Albert (Date of defense: 2021-12-22)

    Every year, the textile industry generates large amounts of cellulosic waste during the production and fabrication stages. This waste is made up of fibers, with lengths are less than 10 mm that prevent its reintroduction ...

    Evaluación de los efectos no intencionados de los transgenes en plantas modificadas genéticamente (MG) resistentes a plagas y diseñadas como biofactorías de péptidos antimicrobianos 

    Montero Mirabet, Maria (Date of defense: 2012-06-22)

    Genetically modified crops are submitted to strict regulation to ensure the safety of consumers and the environment. To complement the comparison between GM plants and their counterparts, in the present Thesis, we evaluated ...

    Evaluation and comparison of advanced treatment technologies to enhance the removal of pharmaceutical active compounds from wwtp secondary effluent 

    Sbardella, Luca (Date of defense: 2019-05-22)

    The presence of several pharmaceutical active compounds (PhACs) in water bodies has garnered increasing attention and worldwide concern. The effluents from wastewater treatment plants (WWTPs) are one of the main sources ...

    Experimental basis for the control of plant diseases caused by Xylella fastidiosa using synthetic antimicrobial peptides 

    Baró Sabé, Aina (Date of defense: 2021-07-30)

    Xylella fastidiosa is one of the most damaging phytopathogenic bacteria in the world, causing a variety of diseases with a major economic impact on agriculture and the environment. Until now, no therapeutic solution has ...

    Fat and salt reduction and substitution in small-caliber non-acid fermented sausages 

    Mora Gallego, Héctor (Date of defense: 2014-09-08)

    The objective of this thesis is to develop fermented sausages with lower fat and sodium content by means of innovative processing and the use of fat and NaCl substitutes. The effect of sunflower oil and pork lard-based ...

    Feasibility of incorporating treated lignin and cellulose nanofiber in fiberboards made from corn stalk and rice straw 

    Theng, Dyna (Date of defense: 2017-07-28)

    Agricultural waste is of particularly interest due to abudant, cheap, widely available worldwide and renewable material. It represent a good option for wood sources substitution, containing similar in chemical and physical ...

    Formulació i caracterització de materials compostos de polipropilè reforçat amb fibres lignocel·lulòsiques procedents de poda de taronger. Estudi del seu ús per a materials aplicables a la construcció 

    Reixach Corominas, Rafel (Date of defense: 2015-10-28)

    Aquesta tesi doctoral i tot el treball experimental s’ha realitzat dintre les línies de treball del grup de recerca, Laboratori d’Enginyeria Paperera i Materials Polímers (LEPAMAP) de l’Escola Politècnica Superior de la ...

    Fugitive green-house gas emissions during biological wastewater treatment: investigating sources and mitigation strategies in laboratory and full-scale systems 

    Rodríguez-Caballero, Adrián (Date of defense: 2015-03-20)

    The exponential increase of the atmospheric concentration of green-house gases due to human activities is responsible for the acceleration of global warming and climate change. Recently, scientific studies have pointed ...

    Grape stalk and coffee polyphenolic extracts administration as new pharmacological strategies to modulate spinal cord injury-induced neuropathic pain in mice 

    Bagó Mas, Anna (Date of defense: 2022-03-18)

    More than half of spinal cord injury patients develop central neuropathic pain, which is largely refractory to current treatments. Developing neuropathic pain has a high impact on the quality of life becoming an emotional, ...

    Greenhouse gas emissions from wastewater treatment processes: identifying triggering factors at laboratory and full-scale systems 

    Ribera Guàrdia, Anna (Date of defense: 2017-12-12)

    This thesis focuses on the study of the global green house gas (GHG) emissions from wastewater systems. Nitrous oxide (N2O) and methane (CH4) are the main GHG directly emitted from wastewater treatment plants (WWTP). In ...