Now showing items 5333-5352 of 5502

    Understanding and mitigating the post-injection seismicity induced by fluid injection in enhanced geothermal systems 

    Boyet, Auregan (Date of defense: 2024-01-31)

    (English) Induced seismicity due to hydraulic stimulation and circulation is a hurdle for the development of Enhanced Geothermal Systems (EGS). The monitored seismicity has occasionally reached magnitudes large enough to ...

    Understanding Biomass Pyrolysis Kinetics: Improved Modeling -based on -comprehensive -thermokinetic Analysis 

    Gómez Díaz, Claudia Juliana (Date of defense: 2007-01-18)

    En el campo de la cinética de la pirólisis de biomasa se han desarrollado numerosos trabajos de investigación que no acaban de resolver aspectos básicos del proceso. El análisis de resultados termogravimétricos aún requiere ...

    Understanding consumers' perceptions to stimulate aquaculture fish consumption in Europe 

    López Mas, Laura (Date of defense: 2023-07-20)

    (English) Fish can play a crucial role in feeding the growing global population and providing it with essential nutrients. However, the world’s fish stocks are limited and almost fully exploited. Consequently, aquaculture ...

    Understanding food waste behaviours along the food supply chain-a mutilevel approach 

    Diaz Ruiz, Raquel (Date of defense: 2018-11-30)

    The visibility of the food waste volume along the food supply chain during the recent years has situated this topic in the policy and research agenda. Food waste entails environmental, ethical and economic impacts. There ...

    Understanding human-centric images : from geometry to fashion 

    Simó Serra, Edgar (Date of defense: 2015-07-06)

    Understanding humans from photographs has always been a fundamental goal of computer vision. Early works focused on simple tasks such as detecting the location of individuals by means of bounding boxes. As the field ...

    Understanding investor reaction to sustainability news in energy companies: fossil vs renewable vs nuclear, tone effects, and COVID-19 impacts through a multi-study approach using event study metholology 

    Barroso del Toro, Alberto (Date of defense: 2023-07-06)

    (English) This thesis provides empirical evidence, with an unprecedented sample size, that sustainability news moves the stock market, particularly positive news related to fossil fuels. The findings confirm that there is ...

    Understanding secondary emission processes and beam matter interactions for optimization of diagnostic wire grid system in particle accelerators : thermal modeling for beam power limits calculation 

    Navarro Fernández, Araceli (Date of defense: 2023-03-21)

    (English) Thin targets, in form of foils, stripes or wires, are widely used in beam instrumentation to measure various beam parameters, such as intensity, position and size. All these monitors can differ in geometry and ...

    Understanding size-resolved dust emission from field measurements in Morocco 

    González Flórez, Cristina (Date of defense: 2023-10-06)

    (English) Atmospheric mineral dust is composed of a variety of mineral particles exhibiting distinct composition, shape, and size. The wide range of diameters exhibited by dust particles, spanning more than three orders ...

    Understanding the mobility of caesium, nickel and selenium released from waste disposal : chemical retention mechanisms of degraded cement 

    Borkel, Christoph (Date of defense: 2016-01-21)

    Cementitious materials are used to condition or stabilise waste and to build infrastructure in disposal sites. Moreover, they are envisaged to form part of engineered barrier systems as container, backfill or liner materials ...

    Unfittted finite element methods for explicit boundary representations 

    Martorell Pol, Pere Antoni (Date of defense: 2024-02-21)

    (English) This thesis covers the development of large-scale numerical methods for the simulations of partial differential equations on arbitrarily complex geometries. The target application of this thesis is the structural ...

    Unfolding architecture : laboratorio de representación e ideación (medios análogos y digitales) 

    Chiarella, Mauro (Date of defense: 2009-12-04)

    Los diferentes sistemas de representación utilizados en Arquitectura generan, modifican y/o confirman formas de lectura y de memoria en relación a los mecanismos de percepción y conocimiento que proponen. La representación ...

    Unfolding piecewise-smooth dynamics in a single inductor multiple-output switching converter 

    Moreno Font, Vanessa (Date of defense: 2009-11-09)

    Els convertidors commutats de potència són solucions apropiades per subministrar energia a dispositius electrònics per la seva elevada eficiència i reduït cost. El seu ús extensiu en les últimes dècades ha motivat els ...

    Unidad de instrucciones para la ejecución paralela de los saltos 

    González Colás, Antonio María (Date of defense: 1989-05-12)

    (Español) El presente trabajo se centra en el diseño y evaluación de mecanismos que permitan reducir los conflictos ocasionados por las instrucciones de transferencia de control (saltos) en arquitecturas segmentadas. Las ...

    Unified Lagrangian formulation for fluid and solid mechanics, fluid-structure interaction and coupled thermal problems using the PFEM 

    Franci, Alessandro (Date of defense: 2015-05-07)

    The objective of this thesis is the derivation and implementation of a unified Finite Element formulation for the solution of uid and solid mechanics, Fluid-Structure Interaction (FSI) and coupled thermal problems. The ...

    Unifying interaction across distributed controls in a smart environment using anthropology-based computing to make human-computer interaction "Calm" 

    Brown, John N.A. (Date of defense: 2014-04-04)

    Rather than adapt human behavior to suit a life surrounded by computerized systems, is it possible to adapt the systems to suit humans? Mark Weiser called for this fundamental change to the design and engineering of computer ...

    Uniones y elementos de conexión para estructuras con bambú: clasificación y desarrollo de un prototipo de conexión 

    Aguilar Larrinaga, Roberto (Date of defense: 2022-11-04)

    (English) Bamboo is a material of great importance in different civilizations of Asia and Latin America. Its use goes from the roots to the leaves, which are raw material to make edible products, furniture and construction ...

    Universal accessibility : on the need of an empathy-based architecture 

    Bordas Eddy, Marta (Date of defense: 2017-02-10)

    Universal Accessibility: On the need of an empathy-based architecture is a PhD thesis researching the paradigm of accessible architectural design. Starting from the very first understanding of accessibility in architecture, ...

    Universalidad y adecuación en la obra de LIGS. Pedro López Iñigo, Guillermo Giraldez Dávila y Xavier Subias Fages 1956-1966 

    Tena Gómez, Pablo (Date of defense: 2010-09-23)

    El objeto de este estudio es explorar la dialéctica entre la universalidad y la adecuación presente en las obras de los arquitectos López Íñigo, Giráldez y Subías (LIGS). Comprobar cómo la abstracción que caracteriza sus ...

    Universitat i nova urbanitat : nous teixits per una nova percepció de la ciutat a Girona 

    Esquinas Dessy, Jesús (Date of defense: 2013-12-04)

    The grouped implementation of university facilities in a imbricated way with the city, contributes to the "urban" growth of the city that hosts it. "It would consist of a kind of urbanistic acupuncture technique by which ...

    Unravelling 3D cargo transport dynamics at the microtubule network with super-resolution microscopy 

    Verdeny Vilanova, Ione (Date of defense: 2016-10-13)

    Intracellular transport plays an essential role in a wide variety of fundamental cellular processes required to maintain the internal regulation and organization of cells. Different types of cargos such as organelles, ...