Ara mostrant els elements 264-283 de 353

    Productos de cuidado personal en el medio ambiente : presencia, destino y efectos 

    Molins Delgado, Daniel (Data de defensa: 2017-12-01)

    In this PhD. Thesis the results of eleven studies about the presence, distribution, and effects of personal care products (PCPs) in the environment are presented with the intention of giving a consolidated vision and to ...

    Proper generalized decomposition solutions for composite laminates parameterized with fibre orientations for fast computations 

    El-Ghamrawy, Karim (Data de defensa: 2021-04-23)

    Composite materials are gaining popularity as an alternative to classical materials in many different applications. Moreover, their design is even more flexible due to the potential of additive ...

    Propuesta metodológica para estimar N2O en inventarios de emisión y evaluaciones de eco-eficiencia en plantas de tratamiento de aguas residuales 

    Ramírez Melgarejo, Monserrat G. (Data de defensa: 2021-02-26)

    A wastewater treatment plant (WWTP) is a system that aims to reduce the negative impact to bodies of water where the effluent is discharged. reducing the pollutants discharged. Treatment plants have an impact on the ...

    Randomized linear algebra for model order reduction 

    Balabanov, Oleg (Data de defensa: 2019-10-11)

    Solutions to high-dimensional parameter-dependent problems are in great demand in the contemporary applied science and engineering. The standard approximation methods for parametric equations can require computational ...

    Reacciones expansivas internas : estudio de los áridos y hormigón de presas 

    Gobbi, Andressa (Data de defensa: 2019-01-25)

    A significant part of the pathologies found in concrete dams is related with the presence of unsound aggregates that react with the cement paste. Such reactions may lead to expansions, causing damage and compromising the ...

    A reactive barrier to enhance the removal of emerging organic compounds during artificial recharge of aquifers through infiltration basins 

    Valhondo, Cristina (Data de defensa: 2017-02-03)

    Artificial recharge of aquifers through infiltration basins (AR) improves water quality and in- creases groundwater resources, which make of it an appropriate technique for the renaturalization of waters affected directly ...

    Real-time solutions of parametric thermo-hydro-mechanical problems with proper generalized decomposition 

    Moaven, Arash (Data de defensa: 2023-07-04)

    (English) The Proper Generalized Decomposition (PGD) is a mathematical framework belonging to the Model Order Reduction (MOR) class of techniques. To the best of the author's knowledge, this methodology has not been applied ...

    Recomendaciones para el proyecto de puentes de ferrocarril con aparatos de apoyo de núcleo de plomo (LRB) en zonas sísmicas 

    Bellido Recoder, Lucía (Data de defensa: 2021-10-25)

    Railway bridges located at seismic zones are particularly complex structures that present exceptional difficulties due to the existence of the track and the phenomena associated to it called track-bridge interaction. The ...

    Recovery of phycobiliproteins and biogas from microalgae treating wastewater 

    Arashiro, Larissa Terumi (Data de defensa: 2020-07-02)

    Water is undoubtedly the most essential resource of humanity. However. supplying the human population with clean water has been a major challenge for decades. Contaminants in wastewaters endanger water bodies and the ...

    Redistribución del uso del espacio viario como gestor eficiente de movilidad 

    González Guzmán, Carlos Alberto (Data de defensa: 2021-03-18)

    The efficient and equitable use of urban road space considered as a public good and a scarce resource, leads to giving priority to sustainable transport modes (walking, cycling and public transport). Private vehicle sees ...

    Reduced order modeling for smart grids' simulation and optimization 

    Malik, Muhammad Haris (Data de defensa: 2017-02-28)

    This thesis presents the study of the model order reduction for power grids and transmission networks. The specific focus has been the transient dynamics. A mathematical viewpoint has been adopted for model reduction. Power ...

    Refuerzo a cortante de estructuras de hormigón armado con laminados de polímeros reforzados con fibras (FRP) : verificación experimental. 

    Pujol Sánchez, Mireia (Data de defensa: 2018-06-26)

    The use of externally bonded fibre reinforced polymers, FRP, for strengthening reinforced concrete (RC) beams or columns is an alternative to other traditional strengthening techniques due to its high strength-to-weight ...

    Refuerzo de estructuras de hormigón armado y pretensado por conversión a sección mixta mediante hidrodemolición 

    Cots Corominas, Carles (Data de defensa: 2022-05-06)

    This thesis develops a new structural strengthening technique: converting existing reinforced concrete structures to composite sections by inserting connectors after controlled demolition with high-pressure water. The key ...

    Remobilització dels contaminants orgànics persistents en els ecosistemes polars costaners 

    Casal Rodríguez, Paulo (Data de defensa: 2018-11-12)

    Persistent organic pollutants (POPs) constitute an heterogeneous group of chemical substances of great environmental relevance. Its persistence, bioaccumulation, long-range transport potential and negative effects on health ...

    Retinoic acid signaling pathway : gene regulation during the onset of puberty in the European sea bass. 

    Medina Henríquez, Paula Javiera (Data de defensa: 2019-07-08)

    European sea bass (Dicentrarchus labrax) aquaculture is a thriving industry in Spain where it reached about 23,500 t and a market value of approximately 133 million euros. However, most of the sea bass farms produce a high ...

    Retroflections in the tropical Atlantic Ocean 

    Vallès Casanova, Ignasi (Data de defensa: 2021-10-19)

    The upper ocean circulation is the area of confluence of two major vertical cells: the large-scale overturning Atlantic Meridional Overturning Circulation (AMOC) and the regional relatively shallow Subtropical Cells (STCs). ...

    Return of the marine heterotrophic flagellates: diversity, distribution and gene expression patterns 

    Obiol Plana, Aleix (Data de defensa: 2023-01-27)

    (English) Marine heterotrophic flagellates (HF) are very small (2-5 µm) unpigmented protists that are dominant bacterial grazers in the ocean, where they link the transfer of carbon from bacterial cells to higher trophic ...

    Risk-based highway bridge inspection intervals 

    Anitori, Giorgio (Data de defensa: 2021-04-23)

    Infrastructure maintenance programs establish schedules for routine inspections of highway bridges with little consideration of their current conditions. The time interval between two inspections is traditionally set based ...

    Rockfall analysis : failure, fragmentation and propagation characterization : a fractal fragmentation of rockfalls 

    Ruiz Carulla, Roger (Data de defensa: 2018-07-02)

    The present thesis aims at the analysis of the fragmentation of rockfalls. The fragmentation is a complex phenomenon poorly understood with a lack of tools to reproduce it on rockfall simulators. The effect of fragmentation ...

    The role of persistent organic pollutants on Prochlorococcus photosynthetic capability under the global change scenario 

    Fernández Pinos, María del Carmen (Data de defensa: 2016-07-15)

    This thesis aims to assess the effects of the complex mixture of organic pollutants on the Prochlorococcus photosynthetic capability, in field, and at sublethal level, in the multifactorial context of the global change. ...