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Now showing items 11-20 of 88
An Empirical Study on Transmission Beamforming for Ultrasonic Guided-Wave Based Structural Health Monitoring
(MDPI, 2020-03-06)
The development of reliable structural health monitoring techniques is enabling a healthy transition from preventive to condition-based maintenance, hence leading to safer and more efficient operation of different industries. ...
Contributions to the fault tolerance of soft-core processors implemented in SRAM-based FPGA Systems.
(2018-07-26)
Gracias al desarrollo de las tecnologías de diseño y fabricación, los circuitos electrónicos han llegado a grandes niveles de integración. De esta forma, hoy en día es posible implementar completos y complejos sistemas ...
Arquitectura para la medida del Tip Clearance y el Time of Arrival en motores aeronáuticos
(2018-07-18)
Esta tesis propone una arquitectura para la medición de dos parámetros que caracterizan elfuncionamiento de un motor aeronáutico: el Tip Clearance y el Time of Arrival. El primero representa ladistancia desde la punta de ...
Ultrasonic Guided Wave Testing on Cross-Ply Composite Laminate: An Empirical Study
(MDPI, 2020-09-16)
Structural health monitoring comprises a set of techniques to detect defects appearing in structures. One of the most viable techniques is based on the guided ultrasonic wave test (UGWT), which consists of emitting waves ...
Building IoT Applications with Raspberry Pi and Low Power IQRF Communication Modules
(MDPI, 2016-09)
Typical Internet of Things (IoT) applications involve collecting information automatically from diverse geographically-distributed smart sensors and concentrating the information into more powerful computers. The Raspberry ...
An Architecture for On-Line Measurement of the Tip Clearance and Time of Arrival of a Bladed Disk of an Aircraft Engine
(MDPI, 2017-10)
Safety and performance of the turbo-engine in an aircraft is directly affected by the health of its blades. In recent years, several improvements to the sensors have taken place to monitor the blades in a non-intrusive ...
Detección y análisis de grietas en sustratos de silicio cristalino originadas en líneas industriales de fabricación de células solares
(2015-11-06)
Siendo la oblea de silicio cristalino uno de los elementos más costosos de los paneles fotovoltaicos, el objetivo de esta tesis es comprender el proceso de fractura de las obleas de silicio cristalino en las líneas de ...
On the Analysis of Speech and Disfluencies for Automatic Detection of Mild Cognitive Impairment
(Springer, 2020-10)
Alzheimer's disease is characterized by a progressive and irreversible cognitive deterioration. In a previous stage, the so-called Mild Cognitive Impairment or cognitive loss appears. Nevertheless, this previous stage does ...
Automatic Analysis of Archimedes’ Spiral for Characterization of Genetic Essential Tremor Based on Shannon’s Entropy and Fractal Dimension
(MDPI, 2018-07)
Among neural disorders related to movement, essential tremor has the highest prevalence; in fact, it is twenty times more common than Parkinson's disease. The drawing of the Archimedes' spiral is the gold standard test to ...
Técnicas de modulación para convertidores de fijación por diodos tres niveles multifase y control eficiente de dispositivos captadores de energía de las olas
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2015-03-06)
Las olas y las corrientes marinas gozan de unas caracterí sticas propias que las
diferencian del resto de recursos marinos [1{3], e incluso del resto de fuentes
renovables cl ásicas como son el sol y el viento. Entre ...