Universitat Politècnica de Catalunya
Now showing items 4681-4700 of 5910
(English) In this thesis, the mechanical behavior of parts manufactured by Material Extrusion Modeling (MEX) has been evaluated, using a copolimer of polylactic acid (PLA) and polyhydroxybutyrate (PHB), commercially known ...
The thesis is located in two (2) key areas of knowledge: The Software Process Improvement (SPI Software Process Improvement) and Process Change (PDC) at Process Software (PDS) r.Aethods of .Analysis and Cost-Efficiency ...
The starting point of this dissertation is the realization of two facts. On one side, the need of methodologies to develop the research around social aspects of Sustainable Development (SD). Social aspects have been ...
(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 ...
Waters from mines (acid mine drainage-AMD), contain elevated concentrations of SO-24, Fe and other contaminant metals, which can persist in the environment during centuries. The purpose of AMD treatments is to retain metals ...
(English) The production of metallic glasses presents an opportunity for advancing materials science and engineering applications, offering a unique combination of mechanical characteristics that traditional materials ...
In the last decades there has been growing interest in developing ceramic materials with high fracture toughness (Klc) and strength for structural applications. In the specific case of 3 mol% yttria-doped tetragonal zirconia ...
In recent years, zirconia ceramics have been used in many applications. Some of them include tool forming due to its high strength and fracture toughness, thermal barrier coatings on turbines engines due to its low thermal ...
CATALA <br/> <br/>La contaminació de les aigües superficials i subterrànies representa el problema mediambiental més greu a què s'ha d'enfrontar la indústria minera, a causa de les denominades aigües àcides de mina (AAM), ...
L'urani es troba present en el medi a baixes concentracions en roques, sòls i aigua, però l'activitat industrial i el desenvolupament de la tecnologia nuclear ha suposat la generació de grans quantitats de residus i zones ...
In this Thesis we present an argument-based model – ProCLAIM – intended to provide a setting for heterogeneous agents to deliberate on whether a proposed action is safe. That is, whether or not a proposed action is expected ...
Due to the problems associated with the generation and storage of hydrogen in portable applications, the use of ammonia fer the on-site production of hydrogen through its catalytic decomposition has been proposed. This ...
El modelo actual del consumo energético basado en la utilización de combustibles fósiles requiere un replanteamiento debido al agotamiento de éstos y a las emisiones de gases contaminantes que generan. La obtención de ...
Access to drinking water is one of the challenges of the 21st century for an increasing number of countries in the world. In Spain, a desalination plant providing between 20% and 30% of Barcelona¿s drinking water has ...
The depletion of fossil fuels and increase of global warming lead to a high demand for alternative energy sources that should be cheap and renewable to fulfill the future energy demand. The photocatalytic generation of H2 ...
Discrete Mathematics, and in particular Graph Theory, has gained a lot of popularity during the last 7 decades. Among the many branches in Graph Theory, graph labelings has experimented a fast development, in particular ...
Cyanobacteria are prokaryotic aerobic photosynthetic microorganisms with the capacity to remove nutrients from wastewater and synthesize a large variety of bioactive compounds and valuable byproducts. Among those valuable ...
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 ...
La tesis propone dar una visión de la larga duración en los procesos urbanos de reconversiones implicados en la redefinición del frente marítimo de las ciudades portuarias e investigar las razones de los cambios estructurales ...
Wind turbines components are subject to considerable stresses and fatigue due to extreme environmental conditions to which they are exposed, especially those located offshore. Also, the most common faults present in wind ...
