Now showing items 40-59 of 108

    Efficient approaches for object class detection 

    Villamizar Vergel, Michael Alejandro (Date of defense: 2012-09-18)

    La visión por computador y más específicamente el reconocimiento de objetos han demostrado en los últimos años un impresionante progreso que ha llevado a la aparición de nuevas y útiles tecnologías que facilitan nuestras ...

    El modelo eléctrico de conductancias aplicado al isomorfismo de grafos : el método de la estrella 

    Igelmo Ganzo, Manuel (Date of defense: 2016-01-28)

    The first objective proposed in the research of this thesis was the select and develop a (preferably simple) model for graphs, thus, the results obtained through the model may be extrapolated to the modeled objects: graphs. ...

    Energy efficient control of electrostatically actuated MEMS 

    Fargas Marquès, Andreu (Date of defense: 2016-01-22)

    Plenty of Micro-electro-mechanical Systems (MEMS) devices are actuated using electrostatic forces, and specially, parallel-plate actuators are extensively used, due to the simplicity of their design. Nevertheless, ...

    Enhancing low-level features with mid-level cues 

    Trulls Fortuny, Eduard (Date of defense: 2015-02-20)

    Local features have become an essential tool in visual recognition. Much of the progress in computer vision over the past decade has built on simple, local representations such as SIFT or HOG. SIFT in particular shifted ...

    Estabilización de vídeo en tiempo real : aplicaciones en teleoperación de micro vehículos aéreos de ala rotativa 

    Aguilar Castillo, Wilbert Geovanny (Date of defense: 2015-09-04)

    Micro Aerial Vehicles (MAVs), a subset of Unmanned Aerial Vehicles (UAVs), also known as drones, are becoming popular for several applications and gaining interest due to advantages as manufacturing and maintenance cost, ...

    Estimación de la forma de un objeto deformable mediante integración de visión y tacto 

    Castillo Pérez, Esteban del (Date of defense: 2013-09-30)

    Desde hace varias décadas los robots industriales han demostrado su eficiencia para tareas desarrolladas en entornos perfectamente conocidos. No obstante, surgen importantes complicaciones operativas en entornos limitadamente ...

    Estimating and understanding motion : from diagnostic to robotic surgery 

    Avilés Rivero, Angélica Ivone (Date of defense: 2017-05-18)

    Estimating and understanding motion from an image sequence is a central topic in computer vision. The high interest in this topic is because we are living in a world where many events that occur in the environment are ...

    Estrategias de control para sistemas bilineales aplicadas a los convertidores de potencia DD-DC 

    García Esteban, Mauricio (Date of defense: 2001-03-16)

    En este trabajo se presenta, por medio del procedimiento sistemático de selección, definición y adecuación de estrategias generales del control no--lineal, seis diferentes algoritmos propuestos que permiten efectuar el ...

    Exact and non-exact procedures for solving the response time variability problem (RTVP) 

    García Villoria, Alberto (Date of defense: 2010-07-05)

    Cuando se ha de compartir un recurso entre demandas (de productos, clientes, tareas, etc.) competitivas que requieren una atención regular, es importante programar el derecho al acceso del recurso de alguna forma justa de ...

    Experimental and model-based analysis for performance and durability improvement of PEM fuel cells 

    Strahl, Stephan (Date of defense: 2014-11-07)

    Increasing global energy demand, growing carbon emissions and the depletion of fossil fuel sources are some of the most important driving forces for the development of sustainable energy solutions. Proton Exchange Membrane ...

    Experimental characterization and diagonosis tools for proton exchange membrane fuel cells 

    Primucci, Mauricio (Date of defense: 2012-09-10)

    A fuel cell is a device that gives electric power directly from electrochemical reduction and oxidation reactions. PEM fuel cells present some properties that make them appropriate for portable and transport applications: ...

    FAST : a fault detection and identification software tool 

    Duatis Juárez, Jordi (Date of defense: 2016-02-05)

    The aim of this work is to improve the reliability and safety of complex critical control systems by contributing to the systematic application of fault diagnosis. In order to ease the utilization of fault detection and ...

    Fault detection and fault tolerant control in wind turbines 

    Tutivén Gálvez, Christian (Date of defense: 2018-09-27)

    Renewable energy is an important sustainable energy in the world. Up to now, as an essential part of low emissions energy in a lot of countries, renewable energy has been important to the national energy security, and ...

    Fine-motion planning for robotic assembly under modelling and sensing uncertainties 

    Rosell Gratacòs, Jan (Date of defense: 1998-10-13)

    This thesis proposes a fine-motion planner for assembly tasks in the plane considering two degrees of freedom of translation and one of rotation, taking into account modelling and sensing uncertainties and the effect of ...

    Generació de decisions davant d'incerteses 

    Escobet i Canal, Antoni (Date of defense: 2012-09-17)

    Aquesta tesi tracta sobre la metodologia del raonament inductiu difús (FIR, de l’anglès fuzzy inductive reasoning) aplicada a sistemes de detecció i diagnòstic de fallades. La metodologia FIR sorgeix de l’enfocament del ...

    Grasp plannind under task-specific contact constraints 

    Rosales Gallegos, Carlos (Date of defense: 2013-01-10)

    Several aspects have to be addressed before realizing the dream of a robotic hand-arm system with human-like capabilities, ranging from the consolidation of a proper mechatronic design, to the development of precise, ...

    Human movement analysis by means of accelerometers : aplication to human gait and motor symptoms of Parkinson's Disease 

    Samà Monsonís, Albert (Date of defense: 2013-10-03)

    This thesis presents the original contributions of the author on the field of human movement analysis from signals captured by accelerometers. These sensors are capable of converting acceleration from some body parts into ...

    Hybrid modelling and receding horizon control of combined sewer networks 

    Joseph Duran, Bernat (Date of defense: 2014-11-04)

    Combined sewer networks carry wastewater and storm water together. During normal operation all the water is delivered to wastewater treatment plants, where it is treated before being released to surrounding natural water ...

    Influence of reverse logistics on optimal manufacturing, remanufacturing, and storage capacities 

    Benedito, Ernest (Date of defense: 2010-04-08)

    El propósito de la presente tesis es estudiar la influencia de la logística inversa en las capacidades de fabricación, refabricación y almacenaje óptimas de un sistema industrial. El interés por la logística inversa ha ...

    Instrumentation, model identification and control of an experimental irrigation canal 

    Sepúlveda Toepfer, Carlos (Date of defense: 2008-04-03)

    This thesis aims to develop control algorithms for irrigation canals in an experimental framework.<br/>These water transport systems are difficult to manage and present low efficiencies in practice. <br/>As a result, an ...