Ikerketa-DoktoregoTesiak: Envíos recientes
Mostrando ítems 181-200 de 301
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Electrochemical model-based advanced battery control systems
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)Nowadays energetic scenario is changing, improving the actual energy mix, and using cleaner and more sustainable energy generation and consumption methods. Renewable energies are key within this context for a more ... -
Influence of alternative mould materials and inhibitors on mould-metal reactions in magnesium investment casting
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)Investment casting of magnesium is a process well suited for the production of aeronautic and automotive components, as light density components in medium and small series are obtained. But, still nowadays, this process ... -
Air coupled ultrasonic inspection of fiber reinforced composite materials
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)The increase in the use of composite materials in recent years has led the industry into the development of new composite manufacturing processes, like the 3D ultraviolet pultrusion. These new manufacturing processes usually ... -
La innovación abierta en los centros tecnológicos y su efecto en el desempeño
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)The present investigation focuses in research and technology organizations, which are R&D agents, with a mission is to contribute to business development through knowledge and technology transfer. Research and technology ... -
Modular multilevel converter based HVDC transmission system for offshore wind farms
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)This doctoral thesis falls within the scope of electronic power converters oriented to high voltage transmission applications, in particular the power generated in remote offshore wind farms by means of HVDC subsea ... -
A novel approach for Lithium-Ion battery selection and lifetime prediction
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2014)Las aplicaciones objetivo y sus condiciones de operación determinan la utilidad de las diferentes tecnologías de almacenamiento ion-litio disponibles en el mercado. Incluso para una misma tecnología, hay factores adicionales ... -
Understanding of the behaviour of organisational commitment using a system dynamics model
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2018)In our increasingly globalised economy, managing continuous change whilst remaining competitive and dynamic, has become a central issue for organisations in the industrial sector. Organisations which defend a people ... -
Optimización de los procesos de separación en muestras de interés biotecnológico en microdispositivos
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)The work of this doctoral thesis, has focused on the numerical, experimental analysis of the separation processes optimization in micro-nano-biotechnology interest fluids. Specifically, we have determined the thermophysical ... -
Curado microondas de resinas furánicas reforzadas con fibra de basalto: caracterización a fuego y a impacto
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2014)En esta tesis se ha llevado a cabo el estudio de las resinas furánicas provenientes de materias primas de origen natural y renovable, que han sido empleadas en el desarrollo de materiales compuestos mediante el curado por ... -
Simulación numérica y validación experimental de fenómenos de desgaste y fatiga por fretting en aceros trefilados de reducido diámetro
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2016)Many mechanical components such as, bearing housings, exible couplings and spines or steel wires are simultaneously subjected to fatigue and fretting damage. Fretting phenomenon arises when two bodies are in contact subjected ... -
Dynamics of viscoelastic-magnetorheological sandwich structures: multiphysics analysis
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2017)A fundamental aim of many industrial sectors is the reduction of structural vibration in order to increase the service life of mechanical components and diminish noise radiation. Viscoelastic sandwiches have been widely ... -
Desarrolo de un modelo para abordar proyectos de mejora continua de procesos productivos de forma eficaz y eficiente
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)The purpose of this thesis is to develop a model for implementing an effective and efficient continuous improvement projects, aimed at increasing the performance of production processes. In particular, it aims to innovate ... -
Design robust controllers for load reduction in wind turbines
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2013)This thesis determines a design methodology of robust and multivariable controllers based on the H∞ norm reduction and on LPV (Linear Parameter Varying) techniques for load reduction in wind turbines. In order to do this, ... -
Finite element modelling and experimental validation of fretting wear in thin steel wires
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)Fretting wear is one of the main degradation mechanism produced in steel wire ropes. This phenomenon leads to produce wear scars between the contacting thin steel wires reducing considerably the fatigue life of these ... -
Numerical characterization study of pressure drop and heat transfer phenomena in woven wire matrix of a stirling engine regenerator
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2014)Stirling engines are an attractive alternative for micro-cogeneration mainly motivated for it is able to use any heat source and achieve high efficiency. A crucial component in these engines is the regenerator, which has ... -
Theoretical, experimental and numerical analysis of mechanics and contact behaviours of a thermoplastic polyurethane elastomer used as cover rope in lift industry
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)Thermoplastic polyurethane elastomers (TPU) are a class of elastomer that can be processed by heat without being destroyed. In addition to the unique mechanical performance properties of elastomers (soft, high deformation ... -
Fabricación de materiales compuesto de polibutilén tereftalato cíclico reforzados con tejido de fibra de carbono mediante VARTM y su posterior caracterización a impacto
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)In this thesis, the impact behaviour of the carbon fibre reinforced polybutylene terephthalate matrix composites manufactured by vacuum assisted resin transfer moulding has been investigated. The task has been carried out ... -
Design and implimentationof Multi-user MIMO precoding algorithms
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2011)The demand for high-speed communications required by cutting-edge applications has put a strain on the already saturated wireless spectrum. The incorporation of antenna arrays at both ends of the communication link has ... -
Machine generated vertical vibration in elevators
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2013)Vertical vibration deteriorates passenger comfort during an elevator travel. The drive system is a source of vertical vibration as well as the source of energy of the system. This report presents the results of a study of ... -
Estudio de los fenómenos de transporte termo-hidrodinámicos de no equilibrio en mezclas líquidas
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2012)In this doctoral thesis, an experimental study on the transport properties on liquid mixtures has been conducted. The molecular di usion coe cient, thermodi usion coe cient and Soret coe cient of several mixtures have been ...
