Now showing items 60-79 of 84
Loaiza Duque, Julián David (Date of defense: 2023-10-27)
(English) The most common tremor disorders worldwide are Parkinson's Disease and Essential Tremor. The gold standard for diagnosing these movement disorders is medical evaluation by neurologists, but its accuracy depends ...
Català, Pau (Date of defense: 2014-05-06)
This thesis presents the dynamic study of conjugate cam mechanisms with rollers follower and translational movement, to design them with the aim of retard the surface fatigue failure in the rollers. The premature failure ...
Karimi, Shadi (Date of defense: 2020-05-11)
The research is motivated by real applications, such as pasteurization plant, water networks and autonomous system, which each of them require a specific control system to provide proper management able to take into account ...
Mehrdel, Pouya (Date of defense: 2021-09-14)
Over the past decade, microfluidic technology has proven its capabilities to start bringing detection and quantification capacities to novel miniaturized devices. The current generation of microfluidic platforms provide ...
Tejo Otero, Aitor (Date of defense: 2021-07-28)
(English) Additive Manufacturing is the process of joining materials to make objects from a 3D model data, normally layer-upon-layer through series of some cross-sectional slices, as opposed to subtractive manufacturing ...
Herranz Alvarez, Juan F. (Date of defense: 2016-02-29)
The particle production of an accelerator is characterised by the accelerated species of particles, by their number and energy. The particle rate is determined by the production cross section, a natural constant and the ...
García Vilana, Silvia (Date of defense: 2021-02-04)
In this document, a non-linear constitutive model with micro-cracking and irreversibility is proposed for cortical bone of the human rib, extended with a stochastic fracture model, based on acoustic emission. Both models ...
Farré Lladós, Josep (Date of defense: 2015-04-28)
Manufacturers of wind turbines have observed a new phenomenon that appears in high power wind turbines: excessive wear in the teeth located at 0º in the pitch bearing. In order to design more efficient wind turbines, ...
Geng, Linlin (Date of defense: 2021-01-28)
Cloud cavitation is a unwanted phenomenon taking place in many hydraulic machines which damages the surfaces of the solid walls due to the erosive aggressiveness induced by the collapse process. Therefore, it is necessary ...
Roca Cazorla, David (Date of defense: 2020-09-07)
The notion of metamaterials as artificially engineered structures designed to obtain specific material properties, typically unachievable in naturally occurring materials, has captured the attention of the scientific and ...
Roig Bauzà, Rafel (Date of defense: 2024-01-15)
(English) The introduction of the intermittent and unpredictable solar and wind power into the electrical grid is pushing hydraulic turbines to work for longer periods of time in off-design conditions. Under these ...
Torre Sangrà, David de la (Date of defense: 2020-07-28)
Interplanetary travel is a difficult task due to the high fuel mass required to reach other planets. Minimizing the cost of the manoeuvres (and, in turn, the fuel mass) is the objective preliminary mission design. During ...
Torrent Gelmà, Miquel (Date of defense: 2023-03-31)
(English) Pumps of positive volumetric displacement (PDVP) drive a volume of fluid from suction to discharge for each revolution of its shaft, called derived capacity, and therefore, in an ideal constant capacity pump the ...
Martín Román, Sara-Regina (Date of defense: 2013-07-15)
The present thesis investigates a passive acoustic method to locate maneuvering aircraft. The method is based on the acoustical Doppler effect, as a particular effect of the signals received by a mesh of spatially distributed ...
Baghaei, Masoud (Date of defense: 2020-07-24)
One of the main advantages of fluidic oscillators is that they do not have moving parts, which brings high reliability whenever being used in real applications. To use these devices in real applications, it is necessary ...
Rallo Tolós, Héctor (Date of defense: 2021-02-09)
The mobility of the future undoubtedly involves the electrification of vehicles. The increase in social awareness towards a reduction in CO2 emissions, together with the introduction of new laws regulating them, has finally ...
Sarabandi, Soheil (Date of defense: 2021-04-27)
Since the map from quaternions to rotation matrices is a 2-to-1 covering map, this map cannot be smoothly inverted. As a consequence, it is sometimes erroneously assumed that all inversions should necessarily contain ...
Awan, Muhammad Rizwan (Date of defense: 2021-11-02)
The aim of this research is to provide an in-depth understanding of energy consumption in abrasive disc cutting processes. The specific energy consumed in cutting is measured,analysed, and then characterised in to three ...
Jerez Mesa, Ramón (Date of defense: 2018-03-02)
This dissertation is an experimental research project into the mechanical effects of the ultrasonic vibration-assisted ball burnishing process on the surface integrity of surfaces machined through ball-end milling. Due to ...
Zandi, Mohammad Damous (Date of defense: 2020-07-17)
This research is based upon the additive manufacturing (AM) technology which aims to study the mechanical properties of innovative commercial wood-PLA composite material (Timberfill) and characterize its behavior. Specifically ...