Search

In this study, the novel mobile dynamometric platform, OREKA, was utilized to perform an extensive analysis of the centre of pressure behaviour during different tilt motion exercises. This platform is based on a parallel manipulator mechanism and can perform rotations around both horizontal axes and a vertical translation. A group of participants took part in an experimental campaign involving the completion of a set of exercises. The aim was to evaluate the platform’s potential practical application and investigate the impact of visual on-screen feedback on centre of pressure motion through multiple balance indicators. The use of the OREKA platform enables the study of the impact on a user’s balance control behaviour under different rotational perturbations, depending on the availability of real-time visual feedback on a screen. Furthermore, it presented data identifying postural control variations among clinically healthy individuals. These findings are fundamental to comprehending the dynamics of body balance. Further investigation is needed to explore these initial findings and fully unlock the potential of the OREKA platform for balance assessment methodologies.

As new wind farms are built, the best locations are becoming fewer and fewer. Therefore, the debate is currently focused on possible measures to make better use of the resource. While the major reason for the drop in efficiency of a wind farm is wind speed variability, aerodynamic losses in large turbine arrays can be significant, potentially leading to a drop in annual energy production of up to 20%. There are several methods under study on how to improve the performance of wind farms, among which are the variation of yaw angle or axial-induction-based control, which is based on varying the pitch of the wind turbine blades or varying the torque. This study provides a novel approach to the optimization of wake steering in wind farms via Bayesian Optimization. This way, if the upwind turbines are misaligned, their wakes may not directly affect the downstream turbines. Hence, increasing their power output and the output of the wind farm at the cost of lower power output in the upwind turbines. Therefore, this study chooses to develop a model to provide yaw angle variated optimizations. The model to be used is based on the Actuator Disk Model and Large Eddy Simulations. To this end, a validation of the model used is first carried out by comparing the results obtained with those described in Jiménez et al. (2009). Once the code has been validated, a study of the possible optimisation of an array of turbines is carried out.

Retirado a solicitud del autor 11-1-2024, Análisis de la situación de la energía eólica, poniendo el foco en la energía eólica offshore. Estudio de la situación energética del País Vasco, y desarrollo de proyectos de offshore flotante en su costa. Proyectos DemoSATH y GEROA.

En este proyecto se analiza la manera correcta de optimizar la generación y consumo de energía eléctrica así como el diseño de una central de bombeo atendiendo a la energía eléctrica demandada a cada momento, potencia instalada y capacidad de embalses., Energy storage systems are a step forward for renewable energy generation. These systems cover energy shortages at peak demand by storing energy generated at times of low demand. Reversible pumping systems are the perfect solution for energy generation regulation with respect to demand. This article discusses the optimal design of a reversible pumping station in terms of power input/output and mass of water capacity, as well as its way of generating/consuming electricity from the grid with a Model Predictive Control. In this design two cases are analyzed; an ideal case where there are no losses in the plant other than the performance of the equipment, and another case where friction losses exist depending on the design of the pipes.

Energy field has become a key sector in the world. Thermal systems have become increasingly more important in the energy field and due to this this project aims to make a step forward regarding the thermal system technology. The objective of this work is selecting a thermal device, a micro gas turbine in this case, and try to emulate its thermal behaviour. For doing so, a thermal emulator has been modelled and set-up in a real-time environment. The model made includes the hole hydraulic analysis of the thermal emulator. This model has been achieved by two different paths. Using a mathematical theoretical model and a physical Matlab Simscape model. These models have been, afterwards, compared with the set-up results. Results show that flow is going to be used to controlling the transient state of the thermal power of the pump, while electric power is going to be used to reach the desired set-point. Overall, results show that it is possible to emulate the behaviour of the micro gas turbine and that the objective of this work has been fulfilled.

Establishing hydrogen production infrastructure from renewable energy is a high priority for the energy transition. This project analyses options for deployment using offshore wind generation to power electrolysis for green hydrogen production. A case example of northern Spain is used to examine the optimisation and sensitivity of trade-offs between generator and electrolysis locations, as well as electricity and hydrogen transport. Both, onshore and offshore electrolyser locations are analysed. Using this case example enables demonstration of the logical sequence of infrastructure development priorities; an assessment of the critical locations for renewable energy; and most importantly an improved understanding of the sensitivity of different assumptions used to complete the whole system analysis. To this end, a sensitivity analysis is carried out using @RISK software to define the reliability of the results obtained, as well as the key factors that dominate the decision-making in the system design. The study concludes by presenting a decision-making tool to determine the optimum location of both the wind farm and the electrolyser, as well as the transport method for the case site to achieve the established requirements and an assessment of resilience for the outline system design.

Grain storage techniques play an important role in the food supply chain when it comes to food waste. The project BulkID is being developed with the aim of controlling cereal spoilage while being stored, and the theoretical work in this thesis is carried out as part of it. This bulk monitoring is achieved with the help of spherical sensors, and the research goal of this study is to establish a reliable and efficient procedure for placing the rounded prototypes among stored grains. In this investigation, the location of the spheres is acutely studied, for the reason that the defined dispersion should fulfil the necessary conditions for an adequate monitoring.

[EN]In recent times, the manipulation of nanoparticles at nanoscale has become a topic of great interest among the scientific community. The advantages of using SAW represent a great advance in fields such as biomedicine or biosensors. The develop of these techniques is actually related with the advances achieved in the microfluidics science. For this reason, the knowledge of the physics that prevails in the handling of tiny size particles becomes something essential. This project wants to advance in the understanding of physics behind and discuss the effects produced by the forces involved in the interaction with nanoparticles at nanoscale. For that purpose, the experiments carried out compare the obtained results with those which were made by other groups of researchers and pretends to shed light on the gaps identified in the related literature. In this regard, an attempt is made to find an answer to how a change in, for example, surface tension, the contact angle of the drop with the substrate, the viscosity and the density of the fluid affects the movement of the particles. The use of SAW implies the development of a specific device that can channel the wave to the surface in question, this device is called interdigital transducer IDT. A SAW is the acoustic wave produced by the IDT when an electric current is applied to its electrodes. Thanks to the piezoelectric effect of the substrate where the IDT is located, the electrical signal becomes into an acoustic wave that interacts with the surface of the droplet causing an acoustic field to be created within it. With the intention of proving the predicted events that take place inside the water droplet when it is subdue to the SAW, diverse types of IDTs able to operate at different frequencies are produced. Other parameters like the input power, frequency or the particles diameter are considered also to evaluate the involved forces when handling nanoparticles inside the sessile water droplet. The combination of the

The use of the concept of "primary energy" is present in all types of regulations at both European and national level, so that all aspects related to the reduction of energy use and energy efficiency measures speak in terms of primary energy and Primary Energy Factors, necessary for its conversion. The existing consensus on the use of the term is not such in terms of the methodology for calculating the Primary Energy Factors to be adopted, which is the reason for the search for a methodology that acquires the status of global and standard. Using an analytical methodology, this study will analyze and compare the main methods used by agencies and institutions: the Physical Energy Content Method and the Partial Substitution Method, together with another less widely used method, the Exergy Method. The three calculation methodologies will be applied to the case study of the Swedish electricity production mix. The main objective of this thesis is to analyze the advantages and disadvantages of those methodologies, as well as discuss the difficulties of defining some variables such as efficiencies and system boundaries. The results obtained in this study demonstrate the complexity of trying to analyze a system as complex as the energy consumption of a country based on the calculation of a single number or Primary Energy Factor. The system boundaries affect the results. At the same time, the use of the Physical Energy Content Method is discarded because it incurs thermodynamic discrepancies. On the other hand, the use of the Partial Substitution Method and Exergy Method is encouraged, since they reflect more accurately the primary energy consumption, as long as the values of efficiencies that they use are clearly defined and referenced. However, there is a more widespread use of the Physical Energy Content Method in the institutions since the other methods present the great difficulty of establishing a consensus on the energy and exergy efficiencies values adopted. The compl

During this work, I will analyze the supply chain of these companies that are dedicated to the fast-fashion business, analyze and seek solutions and analyze the possible impact that these solutions could have on customers and especially on the profitability and benefits of this Business. All this is framed in sustainability and in reducing pollution throughout this supply chain, both upstream and downstream the supply chain. The idea is to create a sustainable business model that meets the needs and desires of customers. Throughout this work, I will also analyze a company in the fashion sector and study what measures they have taken and how they are adapting their supply chain to achieve a circular economy. We will also study and compare the decisions that other companies have made to reduce their impact on the environment and what the results have been.

The development of a methodology for accurate and reliable condition assessment of civil struc-tures has become very important. The finite element (FE) model updating method provides an efficient, non-destructive, global damage identification technique, which is based on the fact that the modal parameters (e.g. natural frequencies and mode shapes) of the structure are af-fected by structural damage. In the FE model, the damage is represented by a change of the structural parameters and can be identified by updating the FE model to the measured modal parameters. This thesis describes an iterative sensitivity-based FE model updating method in which the discrepancies between the natural frequencies of the numerical model and the real structure are minimized. Furthermore, the updating procedure is applied to the model of the University of the Federal Armed Forces (UniBw) in Munich. For this purpose, it was necessary to design the model and develop an interface between the finite element software (ANSYS) and a computing software (MATLAB), which can apply the model updating technique to the finite element model.

The transformation of urban areas into more self-sufficient and carbon-free places is indispensable in the fight against climate change. 36% of global energy consumption comes from buildings, mainly in cities. If all available and suitable surfaces of these buildings were covered with solar devices, up to 22% of the electricity demand could be supplied, according to an EU study. One of the most advanced and aesthetically pleasing techniques is that of building- integrated technologies, whether they are photovoltaic modules producing electricity or solar thermal collectors producing heat. The main objective of this thesis is to carry out an extended literature review of all existing building- integrated technologies and the methods used to integrate them. In addition, a small compilation of the most relevant projects completed to date will be presented, and proposals will be made for Cranfield University to move closer to zero-emission energy consumption.

The objective of this full project is to design and develop a novel mobility system to be applied on extreme terrains of the Moon for NASA’s challenge, although in this report I will be only talking about the design part and how we came with it. First, we had to choose and focus on a type of potential mission that the rover using that mobility system would do. Once the mission was chosen, various ideas were presented regarding mobility systems and between those, we decided what type of system we would use by mixing different ideas from different proposals. It had to be something new and couldn’t be common like for example wheels. For the selection of the system, we had to research and overcome the possible difficulties we would find on the extreme terrains of the moon, like magnetic dust, big slopes or extreme temperatures between many others. After various meetings and considering different approaches, we ended up choosing a mobility system that would work with soft robotics, a robot with octopus-like tentacles where the arms could be detached to inspect more surface that would act like snakes with different modules. We decided to call this robot the UC-Ebot.

[EN]Kitting is a critical process in every single industrial system which involves mass production, assembly and complex logistics, and it can be considered as a shipping and warehouse technique that has become popular with the development of more complex manufacturing and production systems. Kitting is manually done by an operator, which involves wasting time and money while undertaking a task which is not value-adding for the final product. This work presents the concept model and operations of an Automated Kitting Station, which automates the kitting process completely and allows for future integration within an Automated Production Process. The 3D-Model, layout, process and implementation have been assessed and developed, and the Automated Kitting System and its operations have been validated through a ROS and Gazebo based simulation environment. The kitting task is done by a Robot Manipulator, which is capable of undertaking the materials pick and place tasks in real time as soon as kitting requests are done. The results demonstrate that the manual kitting process can effectively be transformed and improved by implementing automation to it. Higher efficiency and accuracy are obtained, the material flow is better monitored and a complete control of the kitting process is obtained. The simulation shows an accurate performance of the robot and a quick and effective response to an external kitting request.

The aim of this project is to get a wheel robot to reach a destination successfully while avoiding any obstacles it may find in its way. The robot is equipped with an ultrasonic sensor to detect any obstacle and an Inertial Measurement Unit (IMU) that measures the velocity and acceleration to determine its position. To achieve that goal, a control system has been designed and implemented that creates a path from the starting point to the destination and, if it finds an obstacle in its way, it is able to avoid it and go back to the path.

The aim of this study is to make a better understanding of the multiple water impinging jets quenching technique in order to make further research in the area of enhancing the mechanical properties of steel by understanding effect of the quenching parameters and their characteristics in order to optimize the quenching technique for different applications.

La proliferación de la web y las nuevas metodologías de educación online basadas en sesiones de videoconferencia ha provocado un déficit en el material educativo que se encuentra sobre papel. A pesar de que es una clara mejora sobre el método tradicional de impartir clases de forma oral, leer la información permite realizar un estudio de los conceptos de forma más detallada y personalizada al ritmo y las necesidades del estudiante. Es por eso que este proyecto pretende complementar las sesiones en video con una tecnología que ha sido perfeccionada durante la última década, el reconocimiento de voz. Mediante esta tecnología, Factor, es capaz de ofrecer texto junto a los videos de su plataforma. Factor, permite a los alumnos poder leer las clases impartidas y realizar búsquedas de texto. Así mismo, permite a los profesores generar documentos a partir de sus clases. Este proyecto se centra en permitir al sector educativo crear una biblioteca de contenido multimedia que complemente a los sistemas de enseñanza online tradicionales., The proliferation of the web and the new online teaching methodologies based on videoconferences has provoked a deficit in the amount of written learning material available. Even though this method is an obvious step forward from the classic teaching methods, being able to read the materials offers the students a more personalized experience in which they can benefit from learning the concepts at their own pace. Due to this fact, this project aims to support video lectures with a technology that has been hugely developed the last decade, speech recognition. Factor is able to offer text transcriptions of the videos thanks to this technology. Factor offers students the possibility of reading what professor’s say in their lectures and even look for key concepts. It also allows professors to create materials out of their own lectures. This project is focused on allowing the schools to create multimedia libraries that complement traditional video learning platforms.

English: An investigation has been conducted to compare the effects of airfoil suction surface passive deformation and increase of airfoil thickness in ground effect. Single airfoil configuration exhibits high sensitivity to the increase of Adverse Pressure Gradient (APG) due to ground effect, being necessary the use of double element wing to achieve required pressure distribution. A Computational Fluid Dynamic (CFD) model is developed based on data from literature which is later used for CFD analysis of created geometries. 2D and 3D CFD analysis show that passive deformation of suction surface match the effects of increasing airfoil thickness within a 1% margin. While 2D analysis exhibit an improvement in downforce and efficiency increasing airfoil thickness, 3D analysis does not. 3D analysis also shows a change in tendency for downforce obtaining higher values than baseline from a thickness increase of 8% maximum thickness / chord (t/c). A structural concept was successfully modelled achieving a deformation close to target, providing 4.6% less downforce and 1% less efficiency.

This Thesis is based on Thermal and Energetic acquired concepts throughout the completion of a university degree and master. It will be carried out with the PoliTo (Politecnico di Torino) university, working from the so-called Energy Center1. There is a heat pump used for the hot water production and air conditioning of the whole building. We are going to expose the objectives, deepen in the explanation of the Energy Center itself, describe the thermal plant inside it, show the improvements that were carried out once it was a reality and make a functional analysis of it. Once all of this is exposed, the experimental data given by the sensor will be used. We are going to take the data of a whole year and we are going to separate it by months, calculating the average value for each month for each of the four values (in and out temperatures of the hot and cold streams). After that, the total average will be calculated. The next step will be to analyse these calculations through the Coolpack simulation system to, finally, compare them with the theoretical ones expected when the project was launched. All the schemes used will be shown in the annex and the support needed to fulfil this project in the Bibliography.

This master's thesis involves the design and control of the blade ́s pitch angle for a small wind turbine presented to the International Small Wind Turbine Competition (ISWTC). The control of pitch mechanism will modify the position of the wind turbine blade by means of a rotation with respect to its longitudinal axis. As a result, a better control of the wind turbine power, a reduction of aerodynamic stresses, thus facilitating better operation and maintenance will be achieved. The main objectives of this project are as follows: • Design the pitch mechanism • Modelling of pitch mechanism for the controller design • Study and understanding pitch control objectives and strategies • Designing the controller and validating by numerical simulations • Realization of the controller using Arduino or equivalent device This work will start by introducing the main types of wind turbines and factors that can affect a horizontal axis generator. In addition, the aerodynamic principles that govern the operation of wind turbines are described in order to understand the importance of the pitch system. As well as a description of the blade profiles and the theories and concepts used for the aerodynamic calculations. Once the theoretical concepts of the wind turbine have been introduce, the background of the project is presented, which includes a brief description of the wind turbine that will be used as the starting point for this project. Furthermore, the requirements specified by the competition rules are also listed. Afterwards, the needed calculations for the design of the pitch mechanism, the selection of the actuator and the CAD design of the mechanism, as well as the actual constructed mechanism are presented. And immediately afterwards, the control systems are developed theoretically and the designs of the developed control system are described, along with the elements used and the Arduino code and the result obtained. Lastly, the plan and budget executed for the realisation

A few years ago, the professional sector was introduced to the term "cloud" by implementing technologies based on the processing and storage of data in the cloud that allow greater availability and efficiency in the use of physical resources. However, this trend has not been the same in the education sector, which can also benefit from the adoption of these technologies for a more efficient management of the infrastructure and an improvement in the quality of the education offered. In order to demonstrate these benefits, a platform as a service (PaaS) based on OpenShift, from RedHat, has been developed. The preparation of this work includes the process of installing the "cluster" of servers in a virtual environment and the description of the benefits obtained after performing several tests on the platform. In addition, a plan to improve the project in the future has been included, with a detailed explanation of how to replicate it in a physical environment., Hace unos años, el sector profesional se introdujo en el término “cloud” mediante la implementación de tecnologías basadas en el procesamiento y almacenamiento de datos en la nube que permiten una mayor disponibilidad y eficiencia en la utilización de recursos físicos. Sin embargo, esta tendencia no ha sido la misma en el sector educativo, el cual puede verse igualmente beneficiado por la adopción de dichas tecnologías para una gestión más eficiente de la infraestructura y una mejora en la calidad de la educación ofertada. Con el fin de demostrar estos beneficios, se ha desarrollado una plataforma como servicio (PaaS) basada en OpenShift, de RedHat. La elaboración de este trabajo cuenta con el proceso de instalación del “cluster” de servidores en un entorno virtual y la descripción de los beneficios obtenidos tras realizar varias pruebas sobre la plataforma. Además, se ha incluido un plan para mejorar el proyecto en el futuro, con una explicación detallada de cómo replicarlo en un entorno físico., Duela urte batzuk, sektore profesionala "Cloud" terminoan sartu zen, datuak hodeian prozesatzean eta biltegiratzean oinarritutako teknologiak inplementatuz. Teknologia hauek, baliabide fisikoen erabilgarritasunean eskuragarritasun eta eraginkortasun hobea ahalbidetzen dute. Hala ere, joera hori ez da berdina izan hezkuntza-sektorean; izan ere, teknologia horiek azpiegitura modu eraginkorragoan kudeatzeko eta eskainitako hezkuntzaren kalitatea hobetzeko erabil daitezke. Onura horiek frogatzeko, RedHaten OpenShift oinarritutako zerbitzu (PaaS) plataforma bat garatu da. Lan hau egiterakoan, zerbitzarien "klusterra" ingurune birtual batean instalatzeko prozesua eta plataformari buruzko hainbat proba egin ondoren lortutako onurak deskribatu dira. Gainera, etorkizunean proiektua hobetzeko plan bat elaboratu da, ingurune fisiko batean lana erreplikatzeko azalpen zehatz-mehatz batekin.

Artificial Intelligence and specially Machine Learning and Deep Learning techniques are increasingly populating today’s technological and social landscape. These advancements have overwhelmingly contributed to the development of Speech Synthesis, also known as, Text-To-Speech, where speech is artificially produced from text by means of computer technology. Despite existing such a variety of speech synthesis tools and systems, there is a fundamental common drawback: unnatural, robotic and impersonal synthesized voices. That’s where Voice Cloning technology comes into play, which allows to generate an artificial synthetic speech that resembles a targeted human voice. This new practice offers many benefits in several fields, such as, healthcare, education, or advertising. However, there is a known fact that every coin has two sides. Likewise, with the development of voice cloning, the generation of fake video and voices, known as “deepfakes”, has risen, causing a loss of trust and greater fear towards technology. In this way, the objective of this project is to analyze the availability of deepfake voice technologies nowadays and its impact for good and evil. Therefore, we chose to focus on the educational field, by implementing a voice query assistant that answers to questions related to a course, like the professor’s contact information or the date of the final exam. To enhance user experience, we added the extra feature of answering with the corresponding professor’s cloned voice. Moreover, as an initial point for a forthcoming investigation, we provide a design of a qualitative research study that allows participants to test the built framework and to give their views in order to gain a better understanding of the impact that voice cloning causes on people. Since all technology related concept, voice cloning is not exempt from discussion, so we also conduct an analysis about the misuse, the regulation, and the future of it. The results of the case study show that it, La inteligencia artificial y, especialmente, las técnicas de aprendizaje automático y aprendizaje profundo están cada vez más presentes en el panorama tecnológico y social actual. Estos avances han contribuido de manera abrumadora al desarrollo de la Síntesis de Voz, también conocida como Texto a Voz, donde, por medio de tecnología informática, el habla se produce de manera artificial. A pesar de haber gran variedad de herramientas y sistemas de síntesis de voz, existe un inconveniente común: voces sintetizadas antinaturales, robóticas e impersonales. Ahí es donde entra en juego la tecnología de Clonación de Voz, que permite generar un discurso artificial que se asemeja a una voz humana especifica. Esta nueva práctica ofrece muchos beneficios en campos como la salud, la educación o la publicidad. Sin embargo, con el desarrollo de la clonación de voz, ha aumentado la generación de videos y voces falsos, conocidos como “deepfakes”, provocando una pérdida de confianza y miedo hacia la tecnología. De esta forma, el objetivo de este proyecto es analizar la disponibilidad de tecnologías de clonación de voz en la actualidad y su impacto tanto positivo como negativo. Para ello, optamos por centrarnos en el campo educativo, implementando un asistente de voz que responde a preguntas relacionadas con una asignatura, como la información de contacto del profesor o la fecha del examen final y, para mejorar la experiencia del usuario, hemos añadido una función adicional: responder con la voz clonada del profesor correspondiente. Además, como punto inicial para una investigación futura, proporcionamos el diseño de un estudio cualitativo que permite a los participantes probar el sistema creado y dar su opinión, para así analizar el impacto que causa la clonación de voz en las personas. Junto a esto, y teniendo en cuenta que la clonación de voz no está exenta de discusión, también realizamos un análisis sobre el mal uso, la regulación y el futuro de la misma. En suma, los resultados, Adimen Artifizialak, eta bereziki Ikasketa Automatikoak eta Ikaskuntza Sakonak, gero eta garrantzi handiagoa dute gaur egungo ikuspegi teknologiko eta sozialean. Aurrerapen horiek izugarri lagundu dute hizketa-sintesiaren garapenean, non, ordenagailu baten bitartez, ahotsa artifizialki sortzen den. Gaur egun hizketa sintesirako sistema ugari egon arren, gehienek eragozpen komun bat dute: ahots ez natural, robotiko eta inpertsonala. Horren konponbide gisa, ahots-klonazioa erabiltzen da, zeinari esker, norbaiten ahotsaren antza duen hizketa sintetiko artifiziala sortzen den. Teknologia berri honek hainbat abantaila eskaintzen ditu zenbait arlotan, hala nola, osasunean, hezkuntzan edota publizitatean. Hala ere, ahots-klonazioaren garapenarekin batera, "deepfake" izenarekin ezagutzen diren bideo eta ahots faltsuen sorrerak gora egin du, teknologiarekiko konfiantza galduz eta beldurra areagotuz. Era horretan, proiektu honen helburua gaur egungo ahots-klonazioaren erabilgarritasuna eta eragin positibo eta negatiboak aztertzea da. Horretarako, hezkuntza eremuan zentratu gara, irakasgai batekin lotutako galderei (irakaslearen kontaktu informazioa edo amaierako azterketaren data adibidez) erantzuteko gai den ahots-laguntzailea garatuz. Horrez gain, erabiltzailearen esperientzia hobetzeko, erantzuna dagokion irakaslearen ahots klonatuarekin erreproduzituko da. Gainera, etorkizuneko ikerlan posible bati begira, ikerketa kualitatibo baten diseinua eskaintzen da, non parte-hartzaileek garatutako sistema probatu eta beraien iritzia emango duten, ahots-klonazioak pertsonengan duen eragina hobeto ulertzeko. Bestalde, ahots-klonazioa, teknologiarekin loturiko kontzeptu guztiak bezala, ez dago eztabaidatik salbu, eta beraz, honen erabilera okerra, erregulazioa eta etorkizuna aztertuko dira. Proiektu honen bidez norbaiten ahotsa klonatzea posible dela ondoriozta daiteke, erreferentzia gisa jatorrizko ahotsaren segundo gutxi batzuk oinarri hartuta. Horrek, aurreratu bezala, erabiltzail, La inteligencia artificial y, especialmente, las técnicas de aprendizaje automático y aprendizaje profundo están cada vez más presentes en el panorama tecnológico y social actual. Estos avances han contribuido de manera abrumadora al desarrollo de la Síntesis de Voz, también conocida como Texto a Voz, donde, por medio de tecnología informática, el habla se produce de manera artificial. A pesar de haber gran variedad de herramientas y sistemas de síntesis de voz, existe un inconveniente común: voces sintetizadas antinaturales, robóticas e impersonales. Ahí es donde entra en juego la tecnología de Clonación de Voz, que permite generar un discurso artificial que se asemeja a una voz humana especifica. Esta nueva práctica ofrece muchos beneficios en campos como la salud, la educación o la publicidad. Sin embargo, con el desarrollo de la clonación de voz, ha aumentado la generación de videos y voces falsos, conocidos como “deepfakes”, provocando una pérdida de confianza y miedo hacia la tecnología. De esta forma, el objetivo de este proyecto es analizar la disponibilidad de tecnologías de clonación de voz en la actualidad y su impacto tanto positivo como negativo. Para ello, optamos por centrarnos en el campo educativo, implementando un asistente de voz que responde a preguntas relacionadas con una asignatura, como la información de contacto del profesor o la fecha del examen final y, para mejorar la experiencia del usuario, hemos añadido una función adicional: responder con la voz clonada del profesor correspondiente. Además, como punto inicial para una investigación futura, proporcionamos el diseño de un estudio cualitativo que permite a los participantes probar el sistema creado y dar su opinión, para así analizar el impacto que causa la clonación de voz en las personas. Junto a esto, y teniendo en cuenta que la clonación de voz no está exenta de discusión, también realizamos un análisis sobre el mal uso, la regulación y el futuro de la misma. En suma, los resultados, Adimen Artifizialak, eta bereziki Ikasketa Automatikoak eta Ikaskuntza Sakonak, gero eta garrantzi handiagoa dute gaur egungo ikuspegi teknologiko eta sozialean. Aurrerapen horiek izugarri lagundu dute hizketa-sintesiaren garapenean, non, ordenagailu baten bitartez, ahotsa artifizialki sortzen den. Gaur egun hizketa sintesirako sistema ugari egon arren, gehienek eragozpen komun bat dute: ahots ez natural, robotiko eta inpertsonala. Horren konponbide gisa, ahots-klonazioa erabiltzen da, zeinari esker, norbaiten ahotsaren antza duen hizketa sintetiko artifiziala sortzen den. Teknologia berri honek hainbat abantaila eskaintzen ditu zenbait arlotan, hala nola, osasunean, hezkuntzan edota publizitatean. Hala ere, ahots-klonazioaren garapenarekin batera, "deepfake" izenarekin ezagutzen diren bideo eta ahots faltsuen sorrerak gora egin du, teknologiarekiko konfiantza galduz eta beldurra areagotuz. Era horretan, proiektu honen helburua gaur egungo ahots-klonazioaren erabilgarritasuna eta eragin positibo eta negatiboak aztertzea da. Horretarako, hezkuntza eremuan zentratu gara, irakasgai batekin lotutako galderei (irakaslearen kontaktu informazioa edo amaierako azterketaren data adibidez) erantzuteko gai den ahots-laguntzailea garatuz. Horrez gain, erabiltzailearen esperientzia hobetzeko, erantzuna dagokion irakaslearen ahots klonatuarekin erreproduzituko da. Gainera, etorkizuneko ikerlan posible bati begira, ikerketa kualitatibo baten diseinua eskaintzen da, non parte-hartzaileek garatutako sistema probatu eta beraien iritzia emango duten, ahots-klonazioak pertsonengan duen eragina hobeto ulertzeko. Bestalde, ahots-klonazioa, teknologiarekin loturiko kontzeptu guztiak bezala, ez dago eztabaidatik salbu, eta beraz, honen erabilera okerra, erregulazioa eta etorkizuna aztertuko dira. Proiektu honen bidez norbaiten ahotsa klonatzea posible dela ondoriozta daiteke, erreferentzia gisa jatorrizko ahotsaren segundo gutxi batzuk oinarri hartuta. Horrek, aurreratu bezala, erabiltzail

El primer bloque reúne las tareas y responsabilidades que he tenido como ingeniero junior en Franklin Brazing & Metal Treating durante mis prácticas. Desde la revisión y actualización o corrección de antiguas instrucciones de ensamble, hasta el análisis de datos de producción y mano de trabajo para la optimización de procesos. También fui responsable de crear una tabla de cálculo para el proceso de Brazing y la automatización del cambio de formato de las instrucciones de trabajo de la empresa. Tanto Franklin como yo hemos terminado esta experiencia muy satisfechos. Agradezco a la Universidad del País Vasco y a la Universidad de Cincinnati la preparación y oportunidades que me han dado., This paper brings together the tasks and responsibilities I have had as a junior engineer at Franklin Brazing & Metal Treating during my internship. From reviewing and updating or correcting old assembly instructions, to analyzing production and labor data for process optimization. I was also responsible for creating a calculation template for the Brazing process and automating the changeover of the company's work instruction format. Both Franklin and I have finished this experience very satisfied. I thank the University of the Basque Country and the University of Cincinnati for the technical preparation and opportunities they have given me., Lan honek praktiketan Franklin Brazing & Metal Treating enpresako ingeniari junior gisa izan ditudan zereginak eta erantzukizunak biltzen ditu. Muntatzeko argibide zaharrak berrikustea eta eguneratzea edo zuzentzea, ekoizpenaren datuak eta eskulanak aztertzea prozesuak optimizatzeko. Soldadura prozesurako kalkulu taula sortzeaz eta konpainiaren lan argibideen birformatizazioa automatizatzeaz ere arduratu nintzen. Franklinek eta biok oso pozik amaitu dugu esperientzia hau. Eskerrak ematen dizkiet Euskal Herriko Unibertsitateari eta Cincinnatiko Unibertsitateari eman didaten prestaketa eta aukerengatik.

In an effort to make a continuous improvement to a Python code that estimates energy consumption for different vehicles, this project aims to refine the simulations for continuously variable transmission (CVT) vehicles. CVTs are of special interest since allows the engine to operate at constant revolutions per minute at different driving speeds. Results indicate that simulations got better after modifying the code to implement some improvements., En un esfuerzo por hacer una continua mejora a un código en Python que estima el consumo de energía para distintos vehículos, este proyecto tiene como objetivo refinar las simulaciones para vehículos de transmisión continua variable (CVT). Los CVTs son de especial interés ya que permiten que el motor opere a revoluciones por minuto constantes a disitintas velocidades de conducción. Los resultados indican que las simulaciones mejoraron después de modificar el código para implementar algunas mejoras. Palabras clave: consumo de energía/ciclos de conducción/transmisión continua variable/eficiencia de transmisión, Ibilgailu desberdinetarako energia kontsumoa balioztatzen duen Python kode batean etengabeko hobekuntzak egiteko esfortzuan, proiektu honek transmisio aldagarri jarraituko (CVT) ibilgailuetarako simulazioak fintzea du helburu. CVTak interes bereziko ibilgailuak dira, motorrak bira minutu konstantea edukitzea ahalbidetzen baitute gidatze abiadura desberdinetan. Ondorioek adierazten dute simulazioak hobetu direla kodea aldatu eta gero hainbat hobekuntza sartzeko ahaleginean. Hitz gakoak: energia kontsumoa/gidatze zikloa/transmisio aldagarri jarraitua/transmisio efizientzia

The following document presents a study on the feasibility of installing small wind turbines in the urban environment. This will require an understanding of all the elements and stages that make up the project. A simulation has been carried out using Homer Pro software in order to contrast the results obtained manually. The economic viability and compliance with current regulations in the field of administrative, technical and economic conditions for wind turbines in urban environments has also been studied., Următorul document prezintă un studiu privind fezabilitatea instalării de mici turbine eoliene în mediul urban. Pentru aceasta, va fi necesar să înțelegem toate elementele și etapele care alcătuiesc proiectul. O simulare a fost efectuată folosind software-ul Homer Pro pentru a contrasta rezultatele obținute manual. De asemenea, au fost studiate viabilitatea sa economică și respectarea reglementărilor actuale în domeniul condițiilor administrative, tehnice și economice ale instalațiilor eoliene în mediul urban., El siguiente documento presenta un estudio sobre la viabilidad de la instalación de turbinas eólicas de pequeño tamaño en el entorno urbano. Para ello, será necesaria la comprensión de todos los elementos y etapas que componen el proyecto. Se ha realizado una simulación mediante el software Homer Pro para contrastar los resultados obtenidos manualmente. Se ha estudiado, asimismo, su viabilidad económica y el cumplimiento de la normativa vigente en el campo de las condiciones administrativas, técnicas y económicas de las instalaciones eólicas en entornos urbanos.

In the last few years, parallel manipulators are being increasingly studied and used for different applications. The performance of parallel manipulators is very sensitive to the geometric parameters, so it is essential to optimize them in order to obtain the desired function. We propose two optimization algorithms that consider the size and regularity of the workspace. The first one obtains the geometric parameters combination that results in the biggest and most regular workspace. The second method analyzes the geometric parameters combinations that result in an acceptable size of the workspace—even if it is not the biggest one—and finds out which ones result in the lowest power consumption. Even if the results vary depending on the application and trajectories studied, the proposed methodology can be followed to any type of parallel manipulator, application or trajectory. In this work we focus on the dimension optimization of the geometric parameters of the 2PRU-1PRS Multi-Axial Shaking Table (MAST) for automobile pieces testing purposes.

In the master’s thesis presented below, the reconstruction design of an electrical cabinet is carried out to suit the new needs of the consumers in the engine room of a cooling plant in the meat sector. The aim is to present the control and protection of this engine room by means of a unifilar scheme, which includes identification of consumers, valves, cable selection, correct wiring connection for the proper functioning of the PLC, selection of protection elements, and so on. To carry out the development of this design, the EPLAN software will be used., In the master’s thesis presented below, the reconstruction design of an electrical cabinet is carried out to suit the new needs of the consumers in the engine room of a cooling plant in the meat sector. The aim is to present the control and protection of this engine room by means of a unifilar scheme, which includes identification of consumers, valves, cable selection, correct wiring connection for the proper functioning of the PLC, selection of protection elements, and so on. To carry out the development of this design, the EPLAN software will be used., U diplomskom radu je prikazan tijek izrade projekta rekonstrukcije električnog ormara koji se prilagođava novim zahtjevima nvestitora. Ormar se nalazi u strojarnici rashladnog postrojenja u prehrambenoj industriji. U projektnoj dokumentaciji se nalazi crtani dio, lista potrošača i kabela, projektni proračuni i tehnički opis. Za razvoj ovog dizajna koristit će se softver EPLAN., Jarraian aurkezten den master amaierako lanean, armairu elektriko bat berreraikitzeko diseinua egiten da, haragi-sektoreko hozte-instalazio bateko makina-gelako kontsumitzaileen behar berrietara egokitzeko. Eskema unifilar baten bidez aurkeztu nahi da aipatutako makina-gelaren kontrola eta babesa, eta horrek barne hartzen du kontsumitzaileen identifikazioa, balbulak, kableen hautaketa, PLCren funtzionamendu egokirako kableen konexio egokia, babes-elementuen hautaketa, etab. Diseinu hori garatzeko, EPLAN softwarea erabiliko da.

Compliant mechanisms are widely used for instrumentation and measuring devices for their precision and high bandwidth. In this paper, the mechatronic model of a compliant 3PRS parallel manipulator is developed, integrating the inverse and direct kinematics, the inverse dynamic problem of the manipulator and the dynamics of the actuators and the control. The kinematic problem is solved, assuming a pseudo-rigid model for the deflection in the compliant revolute and spherical joints. The inverse dynamic problem is solved, using the Principle of Energy Equivalence. The mechatronic model allows the prediction of the bandwidth of the manipulator motion in the 3 degrees of freedom for a given control and set of actuators, helping in the design of the optimum solution. A prototype is built and validated, comparing experimental signals with the ones from the model.

294 p., This thesis presents research in the field of parallel manipulators. We can basically divideindustrial robots in two groups ¿ parallel and serial manipulators. Parallel manipulators are composed ofa mobile and a fixed platform connected by several legs. They are of great interest for industrialapplication because they are more rigid and display better dynamic performance than serial manipulators.We focus on the design of parallel manipulators and, specifically, on the multi-axis shaking tables(MAST).Thesemachines are linkage-based systems that generate a coupled motion in their end-effectorby combining translations and rotations. Their main applications are the dynamic testing of structures ormechanical components ¿ they are essential to experimentally verify the safety and reliability of pieces orstructures under dynamic load conditions.In this thesis we present two methodologies. The first one analyses the performance of a MASTtypeparallel manipulator with known geometric parameters. The second one optimizes the geometricparameters taking into account two performances ¿ the size and regularity of the workspace and thepower consumption. Even though we particularize them for the 2PRU-1PRS parallel manipulator, bothmethodologies are valid for any MAST-type parallel manipulator. Moreover, we present the developmentof a prototype of the 2PRU-1PRS parallel manipulator, which we use tovalidate the methodologies proposed.