Mostrando ítems 1-14 de 14
Salehi Siavashani, Nafiseh (Fecha de defensa: 2023-07-07)
(English) This thesis aims to enhance the conceptual model of the Lake Chad Basin's quaternary aquifer by gathering updated hydrological, geological, meteorological, and groundwater data. Objectives include analyzing natural ...
Núñez González, Francisco (Fecha de defensa: 2012-07-20)
In this thesis, the interaction between flow and sediment in alluvial channels is studied from an empirical approach, for conditions close or pertaining to supercritical flow, and for four types of sediment: sand, gravel ...
Estrella Toral, Soledad (Fecha de defensa: 2013-10-17)
Tradicionalmente la construcción de aliviaderos escalonados en presas de hormigón compactado con rodillo (HCR) se caracteriza por la presencia de muretes guías que imponen un ancho constante a lo largo del aliviadero y que ...
Sánchez Juny, Martí (Fecha de defensa: 2001-05-15)
Se presentarán en este trabajo los aspectos principales del estado del conocimiento existente sobre el comportamiento hidráulico de los aliviaderos escalonados. Se analizará: la caracterización del flujo que se observa en ...
Arbat Bofill, Marina (Fecha de defensa: 2015-09-15)
The presence of a reservoir and its construction generate a direct impact in the rivers and in the surrounding landscape. The effects of the existing reservoirs, plus the combination of these with power plants (that use ...
Díaz Loaiza, Manuel Andrés (Fecha de defensa: 2015-11-20)
Floods and Drought are some of the most catastrophic natural disasters for humanity, averaging 1 to 5 billion dollar of annually damage for flood events and 6 to 8 billion dollars respectively for drought events. To avoid ...
Fernández López, Cristina (Fecha de defensa: 2019-02-01)
Torrential flows have so far been studied less than have river flows, due to the difficulty of faithfully reproducing them in the laboratory, and the few field measurements available. For this reason, this present research ...
Capapé Miralles, Sergi (Fecha de defensa: 2017-05-18)
Research on fine sediment transport (silt and clay) is less advanced than research on sand and gravel movement. Nevertheless, fine sediment can be the predominant fraction of the suspended load in some rivers, and its ...
Ramos Fuertes, Anaïs (Fecha de defensa: 2012-10-23)
Doñana marshes are a wetland of ecological relevance at an international level. They are located on the right bank of the final Guadalquivir River, in the regions of Huelva and Seville in SW Spain. They occupy an area of ...
Tellez Alvarez, Jackson David (Fecha de defensa: 2019-05-10)
This Doctoral Thesis dissertation concerns two main research topic: the analysis of the flow velocity pattern in the nearness of a grate inlet through Surface Flow Image Velocimetry (SFIV) technique and the study of overflow ...
Castro-Alcalá, Eduardo (Fecha de defensa: 2019-05-30)
Tracer visualization in the laboratory at high spatial and temporal resolution can help advance the study of mixing processes. However, grain borders, fluctuations in lighting and non-uniform brightness contribute to produce ...
De Gaspari, Francesca (Fecha de defensa: 2015-04-30)
Geochemical and reactive transport modelling are essential tools in hydrogeology. They help to identify and assess geochemical processes occurring in applications such as groundwater contamination, water-rock interactions ...
Vaezi Anzeha, Iman (Fecha de defensa: 2023-12-21)
(English) This doctoral thesis investigates the causes that induce (micro)seismicity as a result of hydraulic stimulation in fractured low-permeability rock. Understanding such phenomenon is of paramount importance to ...
Larriva Villarreal, Hernán Javier (Fecha de defensa: 2023-11-06)
(English) Turbidity currents in reservoirs are of strong scientific interest because they can be responsible for the contribution of large amounts of fine sediments that can cause early sediment filling. The case study ...