Universitat Politècnica de Catalunya
Now showing items 51-70 of 207
El objetivo principal de la tesis es el análisis y la reducción del ruido en la electrocardiografía de alta resolución con el propósito de mejorar la detección de los potenciales ventriculares tardíos. La hipótesis es que ...
The thermal anemometry is a method which allows to estimate wind magnitude be the mean of measuring heat transfer to the ambient in a forced convection process. For Earth's atmosphere condition, this method is typically ...
The interest on microfluidic systems based on electrowetting-on-dielectric (EWOD) and the miniaturization of such integrated devices, has increased significantly mainly due to the advent of mass market applications such ...
Networks-on-Chip (NoC) is an emerging on-chip interconnection centric platform that influences the modern high speed communication infrastructure to improve on-chip communication challenges in the recent many core ...
This thesis deals with the further development of an existing underwater vehicle for autonomous navigation. The vehicle was conceived to navigate over the sea surface and, at certain fixed points, to dive vertically in ...
Sleep monitoring is of major importance for various medical areas such as the detection and treatment of sleep disorders, assessment of different medical conditions or medications' effects over sleep quality, and mortality ...
Due to the growing popularity of video-based methods for physiological signal measurement, and taking into account the technological advancements of these type of devices, this work proposes a series of new novel methods ...
Electromechanical drives have traditionally found their field of application in the industrial sector. However, the use of such systems is spreading to other sectors within the field of transport, such as the automotive ...
Ensuring reliability and robustness of operation is one of the main concerns in industrial anufacturing processes , dueto the ever-increasing demand for improvements over the cost and quality ofthe processes outcome. In ...
The demand of wind energy has considerably increased during the last decades. In order to fulfil this great energy demand, wind energy conversion systems (WECS) are designed to manage higher power ratings. Currently, the ...
Oceanographic sensor platforms provide biological and meteorological data to help understand changes in marine environment and help to preserve it. Lagrangian drifters are autonomous passive floating platforms used in ...
(English) This PhD dissertation analyzes the evolution of vehicular networks and focuses on the main network processing platform integrated in them: the Gateway (GW). First, a thorough analysis of state of the art technologies ...
Nowadays, energy management has gained attention due to the constant increment of energy consumption in industry and the pollution problems that this fact supposes. On this subject, one of the main industrial sectors, the ...
Aquesta tesi es centra en el desenvolupament i l'ús d'una sonda miniaturitzada de silici per a la mesura de la impedància elèctrica de teixits vius tous. El propòsit d'aquestes mesures d'impedància és la monitorització ...
Galvanically-isolated bidirectional dc-dc converters (IBDCs) have recently received more attention due to its increasing use in systems requiring energy transfer between two dc networks in both directions, requiring galvanic ...
The integration of renewable energy sources in the electrical grid is reducing our dependence on fossil fuels. However, to ensure feasibility and reliability of distributed energy generation, more efficient and higher power ...
The present thesis is focused on the control of three-phase power converters using sliding-mode control (SMC) in abc frame. This work has been based on previous publications about the SMC applied to three-phase power ...
Tradicionalmente, el diseño de sistemas de control en convertidores conmutados DC/DC se ha realizado mediante técnica de modulación de anchura de pulsos (PWM); sin embargo, la utilización de la teoría de sistemas de ...
The present doctoral thesis focuses on designing control schemes for three-phase three-wire voltage-sourced inverters connected to the grid under voltage disturbances. The research recognizes the large-scale integration ...
The multiphase synchronous buck converter is universally used today for powering low voltage, high current and high slew-rate loads, such as CPUs and other high performance digital ICs. This converter demands control ...
