Universitat Politècnica de Catalunya
Now showing items 4160-4179 of 5494
This thesis is focused on particle transport in the context of high computing performance (HPC) in its widest range, from the numerical modeling to the physics involved, including its parallelization and post-process. The ...
The main purpose of the dissertation is to contribute to the development of numerical techniques for computational heat transfer and fluid flow, suitable for low cost (loosely coupled) parallel computers. It is focused on ...
The present and the future expectation in parallel computing pose a new generational change in simulation and computing. Modern High Performance Computing (HPC) facilities have high computational power in terms of operations ...
The need of optimization is present in every field of engineering. Moreover, applications requiring a multidisciplinary approach in order to make a step forward are increasing. This leads to the need of solving complex ...
The aim of the thesis is to define, analyze, and verify through simulations and practical implementations, parallel robots with unconventional joints that allow them to be under-actuated and/or reconfigurable. The new ...
Recently, facial recognition systems have become extremely popular and deployments of this technology are now ubiquitous. Applications ranging from access control to automated surveillance of video feeds rely on facial ...
Digital video is a popular technology used in many different applications. The quality of video, expressed in the spatial and temporal resolution, has been increasing continuously in the last years. In order to reduce the ...
Foreground segmentation in video sequences is an important area of the image processing that attracts great interest among the scientist community, since it makes possible the detection of the objects that appear in the ...
(English) Pumps of positive volumetric displacement (PDVP) drive a volume of fluid from suction to discharge for each revolution of its shaft, called derived capacity, and therefore, in an ideal constant capacity pump the ...
This thesis focuses on the analysis, the compare, the identification and synthesize different geometric proportions and architectural elements that are common to the Romanian Orthodox Church in the historical region of ...
:<br/><br/>Se analiza en el presente trabajo, la relación entre la intensidad de lluvia y parámetros anteriores a la caída de la misma, obtenidos a través de diversas fuentes: imágenes Meteosat, en los canales IR y WV, y ...
In this thesis we tried to demonstrate that Park Güell of Barcelona (1900-1914), projected by Antonio Gaudí, is a rainwater receiver destined to control the erosion and to support to the reforestation. The slope where the ...
This thesis addresses the problem of visual object retrieval, where a user formulates a query to an image database by providing one or multiple examples of an object of interest. The presented techniques aim both at finding ...
The study and application of general Machine Learning (ML) algorithms to theclassical ambiguity problems in the area of Natural Language Processing (NLP) isa currently very active area of research. This trend is sometimes ...
(English) Syngas (a mixture of H2 and CO) is a versatile feedstock that can be used to produce a wide range of chemicals and fuels. For that reason, there is a great interest to optimize and explore new routes for its ...
The sequential estimation of the states (filtering) and the corresponding simultaneous estimation of the states and fixed parameters of a dynamic state-space model, being linear or not, is an important probleminmany fields ...
The work presented in this Thesis is a set of developments focused on the Particle Finite Element Method (PFEM) and its applicability in several fields in Civil Engineering. The PFEM had already been proven to be a powerful ...
The aim of this work is to present a new procedure for modelling industrial processes that involve granular material flows, using a numerical model based on the Particle Finite Element Method (PFEM). The numerical results ...
(English) Aquifers are naturally heterogeneous systems across multiple scales, which poses a known difficulty for grid-based solvers of solute transport. When advection is the dominant transport mechanism, concentrations ...
This thesis presents a study of the mechanical behaviour of coarse-crushable aggregates, using the discrete element method (DEM). A novel DEM model has been developed taking into account particle breakage, the influence ...
