Universitat Politècnica de Catalunya
Mostrando ítems 1-20 de 72
This thesis aims at providing new knowledge on the, otherwise poorly known, molecular-scale mechanisms that operate during hydration of cement phases and dissolution of their hydrates. In order to pursue this objective, a ...
(English) In the realm of Computer-Aided Engineering applied to fast solid dynamics, the intricate mechanical behaviours exhibited by materials when subjected to strong dynamic forces, high speed impacts and complex ...
This PhD thesis proposes a p-adaptive technique for the Hybridizable Discontinuous Galerkin method (HDG). The HDG method is a novel discontinuous Galerkin method (DG) with interesting characteristics. While retaining all ...
Occurrence of debris flows has received little attention in the Pyrenees, probably due to the small risk faced by most of the debris-flow prone sites in this mountain range. Nevertheless, the event of Biescas, which occurred ...
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 ...
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 ...
Piezoelectricity, the two-way coupling between electric polarization and strain is the basic mechanism behind most electromechanical transduction technologies. It is possible only in a limited number of materials, namely ...
El presente trabajo centra su estudio en la problemática de los efectos térmicos ambientales en puentes de hormigón. Los objetivos perseguidos en esta tesis son, por una parte, el desarrollo de un modelo analítico capaz ...
Esta tesis Doctoral aborda el origen, la evolución y las posibilidades de operativizar el concepto de Sostenibilidad en el Sector de la Construcción, y más especificamente en la construcción de edificios.<br/>El estudio ...
L’objectiu de la Monitorització de la salut estructural (SHM) és la verificació de l’estat o la salut de les estructures per tal de garantir el seu correcte funcionament i estalviar en el cost de manteniment. El sistema SHM ...
High-level service bus systems, even though in many different forms and local particularities, have been spread out around the globe over the last decades, driven by the administration and the transport authority, and in ...
In recent years the scientific community has been developing new techniques in structural health monitoring (SHM) to identify the damages in civil structures specially in bridges. The bridge health monitoring (BHM) systems ...
(English) This thesis deals with finite element methods to solve compressible flow problems, an important branch of Computational Fluid Dynamics (CFD) whose applications are widespread in many areas of engineering and ...
In numerous applications, two-phase liquid-gas transport at sub-millimeter length scales plays a substantial role in the determination of the behavior of the system at hand. As its main application, the present work focuses ...
The Ground Penetrating Radar test applied to road engineering is overall used to determine the geometric characteristics of the pavement structure by analyzing the wave in the time domain. On many cases, it is often used ...
The use of concrete in disposal facilities to store low- and intermediate-level nuclear waste requires that the durability of this material is optimal for the lifetime of these repositories. One of the most important ...
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 ...
This thesis deals with the study of the thermal regime of the lower Ebro River (Spain), between the towns of Escatrón and Miravet, at different time scales (multiannual, annual, monthly, diel), as well as the alterations ...
The finite element method is a valuable tool for simulating complex physical phenomena. However, any finite element based simulation has an intrinsic amount of error with respect to the exact solution of the selected ...
Huge modifications have been made to landscape or urban watersheds, especially in twentieth century, caused by increases in urbanization have led to progressive increases in runoff flows and therefore sediment production. ...
