Recursos de colección

RiuNet. Repositorio institucional de la Universitat de Valencia (89.478 recursos)

RiuNet es el Repositorio Institucional de la Universitat Politècnica de València, gestionado por la Biblioteca, cuyo objetivo es ofrecer acceso en Internet a la producción científica, académica y corporativa de la comunidad universitaria con la finalidad de aumentar su visibilidad y hacerla accesible y preservable.

Tesis doctorales

Mostrando recursos 1 - 20 de 98

  1. DESARROLLO DE UNA RUTA SINTÉTICA PARA LA OBTENCIÓN DE LA FEROMONA SEXUAL DEL PIOJO BLANCO DEL LIMÓN (Aspidiotus nerii)

    MONTAÑO CASTAÑEDA, MARY CECILIA
    In recent decades, insect sex pheromones are playing an increasingly important role in the detection, monitoring and control of pests, becoming part of Integrated Management strategies and helping to reduce the amount and use of conventional pesticides. The implementation of control techniques based on pheromones makes it necessary to obtain these substances through organic synthesis. Oleander Scale, Aspidiotus nerii Bouché, 1833, is a cosmopolitan and polyphagous pest that attacks more than 100 plant families. In Spain, it is a coccoid pest of medium-importance for citrus crops, after California red scale (Aonidiella aurantii Maskell), Chaff scale (Parlatoria pergandii Comstock) and Purple scale...

  2. Estudio experimental y computacional del proceso de inyección diésel mediante un código CFD con malla adaptativa

    JARAMILLO CÍSCAR, DAVID
    One of the main aspects in the development of modern diesel engines has been the direct injection systems, due to its influence in the atomization and evaporation processes. The study of all physical and chemical phenomena involved in the scarce milliseconds that the diesel injection last allows a better understanding of the injection. Therefore, it allows a better control of the combustion process (i.e. a higher energy efficiency and lower pollutant emissions). Despite its relevance, there are however many uncertainties regarding the internal flow and the air-fuel mixing process, caused by the small size of the injector ducts, the high injection...

  3. Diseño de un modelo de co-creación de los programas de grado en las universidades ecuatorianas.

    PANTOJA DÍAZ, ODETTE
    Universities are currently facing strong competition given the increasing offer of university programs, as well as budget cuts at the education sector as a result of the current economic crisis. Likewise, students are more informed and have developed a greater mobilization capacity; all of which contribute to the internationalization of higher education. This is how it becomes a necessity for universities to be involved in innovative strategic projects in order to develop competitive advantages against the demands of the educational market. This thesis proposes to apply a co-creative approach in the different university processes, as an innovative marketing alternative to be...

  4. EVALUACIÓN MULTICRITERIO DE LA SOSTENIBILIDAD SOCIAL PARA EL DESARROLLO DE INFRAESTRUCTURAS.

    SIERRA VARELA, LEONARDO ANDRES
    There is a consensus nowadays that the economic, environmental and social considerations in a country's development are needed to achieve sustainability. In the area of construction, agendas have been advanced to promote sustainable development that takes the life cycle of a project into consideration. Nevertheless, it is clear that the fundamental limitation of sustainability is that it tends to concentrate on the biophysical and economic considerations of the built environment without paying sufficient attention to the social aspects. Not including the social aspects early on affects a society's short and long-term infrastructure development. Since the impacts on society are multidimensional,...

  5. Estudio y análisis comparado del concierto para oboe y orquesta KV314 (285d) de W. A. Mozart.

    LLIMERÁ GALDUF, AITOR
    There are numerous editions of the Concerto in W. M. Mozart's Do M. KV 314 / 285d which have been appearing since Bernhard Paumgartner was discovered in 1920, at the Mozarteum Library in Salzburg. The current editions take into account the musical writing of the solo part, both from this source and from the flute version. This has established two lines of editing and interpretation, the first following the indications of the manuscript of the oboe part and another according to the indications of the manuscript for flute, naturally transporting the part. This thesis presents a revised edition with an original...

  6. Análisis dinámico y numérico de familias de métodos iterativos para la resolución de ecuaciones no lineales y su extensión a espacios de Banach

    GARCÍA MAIMO, JAVIER
    Since the appearance of Newton-Rapshon's method more than 300 years ago, iterative methods have become almost unassailable in most branches of science. The development of computing has made it possible to solve problems of increasing complexity, and this has been accompanied by the need for more efficient and reliable methods. Several tools of discrete dynamics can be used to perform a dynamic analysis of methods and families of iterative methods for solving equations and nonlinear systems, with the aim of extracting information about their stability and classifying them. In this memory a biparametric family of iterative methods is designed that contains...

  7. Influencia de elevadas temperaturas en la adherencia de barras de fibra de carbono con el hormigón

    Cos-Gayón López, Fernando José
    The need to mitigate the effects of corrosion on the reinforced concrete structure, and to do so permanently, has led to the proposal of replacing steel bars with other materials that respond adequately to the presence of water without developing corrosive processes. These reinforcements shall ensure the safety and service conditions of the structure over a lifetime and in very adverse climatic conditions. One of the materials being proposed, and de facto already replacing in some places for years, are the rods of polymer reinforced with carbon fibers. The present work studies the adherent behavior of this type of bars at high temperatures...

  8. Dificultades de aprendizaje de la práctica motriz experta en la trompeta

    ALBERT GARGALLO, JORDI
    The main purpose of this research is the design, application and evaluation of an educational strategy to attend trumpet learning difficulties in the expert motor performance (LDEMP), which are present in the acquisition process of mastering the instrument. This study is driven by the thesis' author personal case, he endured some learning difficulties during his trumpet studies. A wider analysis in the educational context shows this situation is general to a great number of trumpet players. This starting point lays out the necessity to make a study of the methodology used as well as its historic origin to understand some ideas...

  9. LA CERÁMICA ARQUITECTÓNICA EN LA OBRA DE OSCAR NIEMEYER: COLOR, MORFOLOGÍA E INTENCIONES

    Torre Fornés, Irene de la
    Architectural ceramics have been a legitimizing resource for the inaugural discourse of the Modern Movement architecture in Brazil. Understood as an element that connects with the tradition of that country, and therefore fully identifiable with it, architectural ceramics have been reinterpreted to assume a prominent, sometimes decisive, role in shaping the most important works of this movement. Oscar Niemeyer, a key architect in the recent history of Brazil, has used ceramic tiles throughout his career with different purposes that are linked both to the artistic context around him and to his own personal interests. The present research aims to rescue...

  10. Integrated Microwave Photonic Processors using Waveguide Mesh Cores

    Pérez López, Daniel
    Integrated microwave photonics changes the scaling laws of information and communication systems offering architectural choices that combine photonics with electronics to optimize performance, power, footprint and cost. Application Specific Photonic Integrated Circuits, where particular circuits/chips are designed to optimally perform particular functionalities, require a considerable number of design and fabrication iterations leading to long-development times and costly implementations. A different approach inspired by electronic Field Programmable Gate Arrays is the programmable Microwave Photonic processor, where a common hardware implemented by the combination of microwave, photonic and electronic subsystems, realizes different functionalities through programming. Here, we propose the first-ever generic-purpose Microwave Photonic...

  11. Utilización de residuos de Neumáticos Fuera de Uso en conglomerantes con base cemento portland y de activación alcalina para uso en prefabricados de bajo coste económico y medioambiental.

    GUDIEL RODRÍGUEZ, EDWIN ROBERTO
    Abstract In many countries around the world, and even more so in developing countries, the problem of the use of end-of-life tires (NFU) is very much present, mainly because they lack selective collection and an adequate management system. The retreading method is the alternative process in NFU management, which consists of replacing the worn tread of a used tire, performing the reconstruction of its original structure. The scraping of the surface is the stage where all the waste that is obtained in the form of tire fibers (FN) and particles is generated. This type of waste can be valued as raw material...

  12. Development of bioinformatics resources for the integrative analysis of Next Generation omics data

    HERNANDEZ DE DIEGO, RAFAEL
    The advances in high-throughput sequencing techniques and the technological development accompanying them have favoured the development and popularisation of a new range of genomic research disciplines, collectively known as the omics. These technologies are capable of simultaneously measuring thousands of molecules which are essential for life, including DNA, RNA, proteins, and metabolites. Historically, classical genomic research has followed a reductionist approach by studying the structure, regulation, and function of these biological units independently. However, despite being a powerful analytical tool, the reductionist method cannot explain many of the biological phenomena that take place in living systems. This is because these...

  13. LA ENTREVISTA AL ARTISTA EMERGENTE COMO MODO DE CONSERVACIÓN PREVENTIVA Estudio aplicado a los proyectos Perspectives Art Inflammation and Me y Perspectives, Art Liver Diseases and Me.

    DEL FRESNO-GUILLEM, RUT
    With the arrival of creative freedom, experimentation and the search for limits, Contemporary art slowly dissociates itself from physical matter to become ideas and concepts. This is the moment when the discipline of Conservation of Contemporary Art is forced to revise its principles, methods and strategies. The lack of information about some aspects that determine the conservation of a contemporary artwork can endanger the conceptualization and the physical artwork itself. If this information is not acquired in a direct and appropriate manner, it could lead us to situations of professional negligence that endanger the existence and the respect for the work. The...

  14. Métodos y herrramientas de evaluación y diseño de instrumentos económicos para gestión de sequías y adaptacion al cambio climático

    López Nicolás, Antonio Francisco
    It is expected that the potential water management conflicts will increase in the coming years due to the population growth, and the uncertainty about the availability of water resources under climate change conditions. For this reason, economic efficiency and equity must be considered in order to manage the available water resources at river basin scale with the aim of reducing the potential water scarcity impacts on society. Hydroeconomic models simultaneously analyse engineering, hydrology and economic aspects of water resources systems; allowing the characterization of real complex systems. So, these models could be useful in order to achieve the goal of...

  15. Métodos y herramientas de evaluación y diseño de instrumentos económicos para gestión de sequías y adaptacion al cambio climático

    López Nicolás, Antonio Francisco
    It is expected that the potential water management conflicts will increase in the coming years due to the population growth, and the uncertainty about the availability of water resources under climate change conditions. For this reason, economic efficiency and equity must be considered in order to manage the available water resources at river basin scale with the aim of reducing the potential water scarcity impacts on society. Hydroeconomic models simultaneously analyse engineering, hydrology and economic aspects of water resources systems; allowing the characterization of real complex systems. So, these models could be useful in order to achieve the goal of...

  16. La ciudad aumentada. Experimentación artística en aplicaciones de realidad aumentada.

    MÉSÁROŠOVÁ, ALENA
    The hybridization of cities of the XXI. century produced by the introduction of the virtuality through the new technologies outlines changes in the scope of perception and relationship between the city and its inhabitants. The technological ubiquity is tracing a new concept of the future of contemporary cities, that enables understanding of technological factors that transform everyday life of society. The hybridization of tangible and intangible spaces, where the materiality and the virtuality fuse, gives rise to the creation of new urban spaces modalities. In the present thesis, this problematics is approached from the point of view of the Augmented Reality and how this technology is able to...

  17. Arte y mística en el siglo XXI. La creación artística como una aproximación a la espiritualidad

    MAÑAS GARCÍA, ALEJANDRO
    Art and mysticism in the 21st century. Artistic creation as an approach to spirituality is the result of a deep study carried out from the point of view of artistic creation. A study based on mysticism, on the mystics of the 16th and 17th centuries and on the associated symbology and its influence in the art of the 21st century. A research work that takes as reference an endless range of fields such as philosophy, psychology, theology, history, aesthetics and art among others, to go in depth into mysticism, mystery and spirituality. The main objective of the work is the study of...

  18. Análisis del contexto cultural del noreste italiano en tres épocas distintas: la Guerra Fría, el Fascismo y la República de Venecia según las Genealogías de diferentes cuerpos en acción: bailarinas, feministas, performers futuristas, balie, mondine e impiraresse.

    SCHIAVON, CHIARA
    Abstract This thesis is proposed as a work of translation, as an attempt to transmit a context that involves bodies, enmeshing genealogical narratives with geopolitics. We have investigated the body in action in the northeast of Italy. This is the context we come from but we view it from an uprooted position, as since 2004 we have been living in southwest Europe (València). We have catalogued and analyzed forms of legitimized artistic expression, including classical ballet, modern jazz dance, Italian futurism's proposals (close to performance), or representations of human anatomy, as well as more popular forms of expression adopted by subordinated...

  19. Procesos Catalíticos Sostenibles para la Transformación de Derivados de Biomasa en Productos Químicos

    Chávez Sifontes, Marvin Horacio
    Ligno-cellulosic biomass from agricultural and forest residues is an alternative to chemicals and fuels production, minimizing our dependence on fossil raw materials. However, nowadays the processes for the valorization of biomass are more expensive than the conventional petrochemical processes. For this reason, we think it is a major challenge for chemists to develop efficient catalytic routes to convert biomass and/or its derivatives into chemical products of industrial interest. In this doctoral thesis, solid catalysts based on different metals (i.e. Pd, Pt, and Ru) supported on metal oxides with different chemical and surface properties (i.e. Al2O3, ZrO2, MgO, etc.) were developed. These...

  20. DETERMINACIÓN DE LAS CUALIDADES DE VALOR EN LA VALORACIÓN DE BIENES INMUEBLES. LA INFLUENCIA DEL NIVEL SOCIOECONÓMICO EN LA VALORACIÓN DE LA VIVIENDA

    LAMA SANTOS, FELIPE ANTONIO DE
    Housing in Spain occupies a prominent place in the economic budget of the household unit or family unit. Therefore, the family is going to devote most of their incomes to the acquisition of a home, which in the majority of cases is bought with external resources, engaging the household unit in a mortgage loan. In our country, there exists a deep-rooted tradition of having home ownership. In Spain 82.7 % of homes are of this kind, one of the highest in Europe -far above Germany, France, Italy or Portugal. The importance of the housing sector as a generator of family wealth...

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