Now showing items 48-67 of 222

    Contribució a l'estudi dels efectes dels retardants en l'extinció d'incendis forestals 

    Pastor Ferrer, Elsa (Date of defense: 2004-12-22)

    El nostre país ha estat devastat seriosament pels incendis forestals durant els darrers anys, causant greus conseqüències sobre les persones i el medi ambient i destruint una de les fonts de riquesa i equilibri més preuades ...

    Contribución al análisis de riesgos en el transporte de materiales peligrosos por tubería 

    Ramírez Camacho, Jaime Giovanni (Date of defense: 2017-12-15)

    The highly complex and interconnected today's societies require a continuous flow of materials and energy from one geographical area to another. In particular, huge amounts of often-hazardous materials, mainly liquids or ...

    Contribución al desarrollo de factores de configuración de bolas de fuego con presencia de obstáculos 

    Bonilla Martínez, Juan Manuel (Date of defense: 2017-11-27)

    Fire is the most common phenomenon that characterizes major accidents that take place in both industrial establishments and in the transport of dangerous goods by road and rail. The formation of a fireball, with or without ...

    Contribución al estudio de plantas químicas multiproducto de proceso discontínuo 

    Espuña, Antonio (Date of defense: 1994-11-17)

    La operación de plantas discontinuas multiproducto a niveles óptimos de capacidad de producción requiere un análisis detallado y selectivo entre las diferentes alternativas viables para la fabricación de cada uno de los ...

    Contribuición al estudio de la operación de destilación discontinua mediante simulación 

    Bonsfills, Anna (Date of defense: 2001-12-20)

    El treball presentat en aquesta tesi pretén contribuir a l'estudi mediambiental de la limitació de les emissions de components orgànics volàtils (VOCs), degudes a l'ús de dissolvents orgànics en determinades activitats i ...

    A contribution to support decision making in energy/water sypply chain optimisation 

    Medina González, Sergio Armando (Date of defense: 2019-02-22)

    The seeking of process sustainability forces enterprises to change their operations. Additionally, the industrial globalization implies a very dynamic market that, among other issues, promotes the enterprises competition. ...

    Contribution to the assessment of shelter-in-place effectiveness as a community protection measure in the event of a toxic gas release 

    Montoya Rodríguez, María Isabel (Date of defense: 2010-11-26)

    En les darreres dècades el nombre d'accidents ocurreguts en la industria química i durant el transport de mercaderies perilloses ha augmentat substancialment, registrant-se en la seva majoria en zones densament poblades. ...

    Contribution to the development of hydrometallurgical separation and concentration techniques focused on precious metals recovery 

    Rovira, Miquel (Rovira Boixaderas) (Date of defense: 1998-03-02)

    Aquesta Tesi Doctoral es centra en la recuperació de metalls precisos presents en dissolucions d'àcid clorhñidric, per mitjà de tècnqiues tant emergents com ben establertes basades en els principis de la tecnologia d'extracció ...

    Contribution to the Optimization and Flexible Management of Chemical Processes 

    Ferrer Nadal, Sergio (Date of defense: 2008-06-19)

    La industria química ha experimentado en las últimas décadas un aumento en la competencia por la cual las empresas se ven obligadas a adaptarse a un mercado cambiante y cada vez más exigente. Aunque la globalización ha ...

    Contribution to the study of boiling liquid expanding vapor explosions and their mechanical effects 

    Hemmatian, Behrouz (Date of defense: 2016-07-18)

    Boiling Liquid Expanding Vapor Explosions keep occurring from time to time in process plants, storage areas and transportation by road or rail, often with severe effects. There is no doubt that a better knowledge of their ...

    Contribution to the Study of Heterogeneous Catalytic Reactions in SCFs: Hydrogenation of Sunflower Oil in Pd Catalysts at Single‐Phase Conditions. 

    Ramírez Rangel, Eliana (Date of defense: 2005-12-10)

    La hidrogenación es uno de los procesos químicos industriales más importantes. Una amplia variedad de productos químicos es obtenida mediante la hidrogenación catalítica. <br/>Uno de los procesos típicos de hidrogenación ...

    Contributions to the risk assessment of major accidents in port areas 

    Ronza, Andrea (Date of defense: 2007-11-22)

    Esta tesis se presenta como un conjunto de artículos (ya publicados en revistas internacionales, con la excepción del Artículo 6) precedidos por una serie de capítulos introductorios. 1. Introducción. Describe los puertos ...

    Crystallization, processing and applications of new polyesters 

    Díaz, Angélica (Date of defense: 2015-05-06)

    Poly(alkylene dicarboxylate)s constitute a family of biodegradable polymers with increasing interest for both commodity and speciality applications. The most of these polymers can be prepared from biobased diols and ...

    Crystallographic study on oligonucleotide coiled-coils 

    Luchi, Daniela de (Date of defense: 2008-07-25)

    En la presente tesis doctoral se han realizado estudios estructurales de DNA. Estudios previos han demostrado que los coiled-coils de d(ATATATATATAT) y d(ATATATATAT) tienen unos parámetros geométricos muy diferentes. El ...

    Cyclic derivatives of D-glucose and tartaric acid as building blocks for renewable polyesters 

    Japu, Cristina (Date of defense: 2014-11-21)

    Three series of aromatic copolyesters derived from poly(ethylene terephthalate) (PET), poly(butylene terephthalate) (PBT) and poly(hexamethylene terephthalate) (PHT) have been synthesized by melt polycondensation in which ...

    Data driven methods for updating fault detection and diagnosis system in chemical processes 

    Ardakani, Mohammad Hamed (Date of defense: 2018-07-23)

    Modern industrial processes are becoming more complex, and consequently monitoring them has become a challenging task. Fault Detection and Diagnosis (FDD) as a key element of process monitoring, needs to be investigated ...

    Data Reconciliation as a Framework for Chemical Processes Optimization and Control 

    Benqlilou, Chouaib (Date of defense: 2004-04-28)

    This thesis presents, discusses and compares a set of methodologies and several appropriate combinations of them, to provide accurate estimation of process variables, either for steady-state or dynamic systems. <br/><br/>Firstly, ...

    Decision support strategies for the efficient implementation of circular economy principles in process systems 

    Somoza Tornos, Ana (Date of defense: 2020-03-26)

    Economic growth at any expense is no longer an option. Awareness of the growing human footprint is crucial to face the problems that the impoverishment of ecosystems is causing and will cause in the future. One of the key ...

    Degradation of organic compounds in paper and testile industrial wastewaters by advanced axidation processes 

    Pérez Moya, Montserrat (Date of defense: 2001-11-16)

    Les activitats de recerca destinades a la solució dels problemes de contaminació de les aigües estan patint un fort increment en els darrers anys. <br/><br/>Entre les indústries més contaminants, cal esmentar la tèxtil i ...

    Del mur romànic al museu. La tècnica de la pintura mural romànica i del seu traspàs amb morters de caseïna 

    Oriols Pladevall, Núria (Date of defense: 2022-11-17)

    (English) An important collection of Romanesque wall paintings, detached from their original places at the beginning of the 20th century, is now preserved and exhibited in the Museu Nacional d'Art de Catalunya. To define ...