Now showing items 276-295 of 364
Gobbi, Andressa (Date of defense: 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 ...
Valhondo, Cristina (Date of defense: 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 ...
Moaven, Arash (Date of defense: 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 ...
Bellido Recoder, Lucía (Date of defense: 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 ...
Arashiro, Larissa Terumi (Date of defense: 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 ...
González Guzmán, Carlos Alberto (Date of defense: 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 ...
Malik, Muhammad Haris (Date of defense: 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 ...
Pujol Sánchez, Mireia (Date of defense: 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 ...
Cots Corominas, Carles (Date of defense: 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 ...
Casal Rodríguez, Paulo (Date of defense: 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 ...
Medina Henríquez, Paula Javiera (Date of defense: 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 ...
Vallès Casanova, Ignasi (Date of defense: 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). ...
Obiol Plana, Aleix (Date of defense: 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 ...
Anitori, Giorgio (Date of defense: 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 ...
Ruiz Carulla, Roger (Date of defense: 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 ...
Fernández Pinos, María del Carmen (Date of defense: 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. ...
Gallisai, Rachelle (Date of defense: 2016-11-04)
The potential capacity of fertilization of surface oceans by atmospheric deposition is of scientific interest. This is especially true in the oligotrophic Mediterranean Sea. Its surface waters are extremely poor in nutrients ...
Cruz García, Rubén (Date of defense: 2020-07-01)
Arctic sea ice plays a central role in the Earth’s climate. Changes in the sea ice on seasonal-to-interannual timescales impact ecosystems, populations and a growing number of stakeholders. A prerequisite for achieving ...
Goyetche, Tybaud (Date of defense: 2021-07-19)
Freshwater quality and availability in coastal areas are affected by seawater intrusion into coastal aquifers. While coastal water quality and coastal ecosystems can be significantly affected by pollutants discharged into ...
In 't Veld, Marten (Date of defense: 2023-11-29)
(English) Air pollutants can be classed as either primary or secondary pollutants. Primary air pollutants are those that are directly emitted into the atmosphere, whereas secondary air pollutants are generated in the ...