Now showing items 50-69 of 108

    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 ...

    Integration Techniques of Fault Detection and Isolation Using Interval Observers 

    Meseguer Amela, Jordi (Date of defense: 2009-06-30)

    An interval observer has been illustrated to be a suitable approach to detect and isolate faults affecting complex dynamical industrial systems. Concerning fault detection, interval observation is an appropriate passive ...

    Knowledge representation and reasoning for perception-based manipulation planning 

    Diab, Mohammed (Date of defense: 2021-01-22)

    This thesis develops a series of modeling and reasoning tools for knowledge-oriented manipulation planning in semi/unstructured environments. The main idea is to use high-level knowledge-based reasoning to capture a rich ...

    Learning relational models with human interaction for planning in robotics 

    Martínez Martínez, David (Date of defense: 2017-02-21)

    Automated planning has proven to be useful to solve problems where an agent has to maximize a reward function by executing actions. As planners have been improved to salve more expressive and difficult problems, there is ...

    Localización de robots móviles en entornos cerrados mediante características de audio 

    Manzanares Brotons, Manuel (Date of defense: 2016-02-03)

    When GPS is not operative in closed environments, mobile robots use different types of sensor in order to locate their position. However, the use of audiofrequency signals sensors is significative lower than other type of ...

    Map-based localization for urban service mobile robotics 

    Corominas Murtra, Andreu (Date of defense: 2011-09-23)

    Mobile robotics research is currently interested on exporting autonomous navigation results achieved in indoor environments, to more challenging environments, such as, for instance, urban pedestrian areas. Developing mobile ...

    Mapping, planning and exploration with Pose SLAM 

    Valencia Carreño, Rafael (Date of defense: 2013-04-19)

    This thesis reports research on mapping, path planning, and autonomous exploration. These are classical problems in robotics, typically studied independently, and here we link such problems by framing them within a common ...

    Modelado y simulación del sistema de control cardiovascular en pacientes con lesiones coronarias 

    Vallverdú Ferrer, Montserrat (Date of defense: 1993-10-22)

    Se presenta un modelo del sistema cardiovascular desarrollado con suficiente detalle para analizar la regulación del sistema nervioso central (snc) de control, cuando el sistema cardiovascular esta sometido a la acción de ...

    Modelado, análisis y control dinámico de un reformador de etanol en tres etapas para aplicaciones en pilas de combustible 

    Garcia, Vanesa M. (Date of defense: 2012-04-16)

    This thesis presents results related to the design, modeling and control of a low temperature ethanol reformer as a source of hydrogen designed to feed a fuel cell (PEMFC). As fuel, ethanol has been selected as one of the ...

    Modelado, simulación y control de un convertidor boost acoplado magnéticamente 

    Carrero Candelas, Niliana Andreina (Date of defense: 2014-07-18)

    This thesis covered the modeling, simulation as well as the design of a control law for a coupled inductor Boost converter. In particular, from the point of view of modeling, we focused on the use of averaged modeling ...

    Modeling and control of PEM fuel cells 

    Sarmiento Carnevali, Maria Laura (Date of defense: 2017-09-22)

    In recent years, the PEM fuel cell technology has been incorporated to the R&D plans of many key companies in the automotive, stationary power and portable electronics sectors. However, despite current developments, the ...