Now showing items 61-80 of 88
Madadi, Hojjat (Date of defense: 2014-01-17)
Recently, the emergence of lab-on-a-chip devices has seen in a variety of applications especially in clinical analys is and diagnostics. ln particular the lack of suitable microdevices for separation of plasma from whole ...
Zougari, Ayoub (Date of defense: 2014-10-17)
In the last decades, the problem of the vibrations and the noise generated by the rolling and the undulatory wear has been approached by multiple research groups. These groups have developed studies with the intention of ...
Mohammadi, Mahdi (Date of defense: 2015-04-10)
Lab-on-a-Chip (LOC) integrated microfluidics has been a powerful tool for new developments in analytical chemistry. These microfluidic systems enable the miniaturization, integration and automation of complex biochemical ...
Gómez Gras, Giovanni (Date of defense: 2015-04-17)
The aim of this thesis is studying and characterizing a ball burnishing process assisted with vibrations. By introducing vibrations in the overall process, results are enhanced if compared to the ones derived from a ...
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 ...
Minguella i Canela, Joaquim (Date of defense: 2014-07-16)
The present work composes a contribution towards the Construction of World models for its implementation in 'Agile Manufacturing Architectures', aiming to take a step further the control programs for manufacturing systems, ...
Clot Razquin, Arnau (Date of defense: 2014-02-20)
This thesis presents a three-dimensional dynamic model of a double-deck circular tunnel embedded in a full-space. The model uses the receptance method to obtain the response of the complete structure from the response of ...
Martínez González, Eva (Date of defense: 2014-01-30)
This thesis is focused on the calibration of the Acoustic Emission (AE) technique to detect and identify damage mechanisms in tool steels. The AE measurement procedure has been calibrated for two mechanical tests: fracture ...
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 ...
Genovese, Pablo A. (Pablo Alberto) (Date of defense: 2013-09-03)
La motivació d'aquesta tesi és entendre com pot ser gestionada la integració de coneixement en projectes de subcontractació estratègica de disseny de producte. Una participació activa de l'empresa durant la realització de ...
Esteban Dalmau, Bernat (Date of defense: 2011-07-06)
La dependència actual dels combustibles fòssils en la majoria de sectors industrials i domèstics no és sostenible ni a curt ni a llarg termini. Això està obligant a plantejar alternatives a la majoria de sectors industrials ...
Baquero Armans, Grau (Date of defense: 2011-07-06)
La introducció de la colza en la rotació de conreus i la producció i ús d’oli vegetal cru (OVC) com a biocarburant per autoconsum agrícola presenten alguns avantatges respecte al sistema tradicional de conreu de la ...
González Guitiérrez, Ramiro Arturo (Date of defense: 2012-01-09)
Degeneration and age affect the biomechanics of the intervertebral disc, by reducing its stiffness, flexibility and shock absorption capacities against daily movement and spinal load. The biomechanical characterization of ...
Arcos Villamarín, Robert (Date of defense: 2007-07-13)
This thesis focuses on the development of an analytical model for the generation and propagation parts of a global model of ground induced vibrations to be used in preliminary assessment studies for the case of at-grade ...
Otero Yugat, Jesús (Date of defense: 2010-02-11)
La principal causa de las vibraciones generadas por la circulación de un tren reside en el contacto rueda-carril, concretamente en las fluctuaciones de la fuerza de contacto provocadas por las irregularidades del perfil ...
Travieso Rodríguez, José Antonio (Date of defense: 2010-09-21)
Mejorar el acabado superficial de una pieza plana o cilíndrica, se puede hacer de manera relativamente sencilla, utilizando para ello un proceso de rectificado. Sin embargo lograr un buen acabado superficial en una superficie ...
Quintero Riaza, Héctor Fabio (Date of defense: 2006-06-28)
En multitud de aplicaciones, es de interés obtener relaciones de transmisión variables a lo largo de un ciclo de rotación del eslabón conductor. Éstas pueden obtenerse mediante distintos mecanismos, entre ellos los engranajes ...
Nuñez Espinoza, Juan Felipe (Date of defense: 2008-06-26)
El concepto de redes sociales de comunicación rural, como una estructura relacional hecha por nodos que están vinculados por medio de actores tales como pequeños productores rurales, proyectos de desarrollo rural, ...
Ripoll Masferrer, Lluís (Date of defense: 2006-01-11)
Los volantes de inercia superan a las baterías eléctricas por su capacidad de absorber y ceder energía en poco tiempo y, si se fabrican con materiales compuestos, también por su reducido peso. La tesis presenta un estudio ...
Riba i Romeva, Carles (Date of defense: 1976-07-08)
A partir de la invenció dels mètodes de generació (finals del segle XIX) i de la posterior posta a punt de les màquines adequades per a utilitzar-los, el dentat cicloïdal ha estat progressivament substituït pel dentat ...