Mostrando ítems 21-30 de 50
Martín Román, Sara-Regina (Fecha de defensa: 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 ...
Sarabandi, Soheil (Fecha de defensa: 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 ...
Río Cano, Carlos (Fecha de defensa: 2022-04-20)
Heavy vehicles are generally equipped with Shock Absorber Suspension Cylinders, which, in addition to integrating in the same element, the damping and suspension mechanism, allow obtaining greater ...
Travieso Rodríguez, José Antonio (Fecha de defensa: 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 ...
Madadi, Hojjat (Fecha de defensa: 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 ...
Bossio, Matias (Fecha de defensa: 2021-06-01)
In food and pharmacological industries, reducing the production time and improving the machine flexibility to be adapted to new products is a constant necessity. This generate changes on the initial ...
Jerez Mesa, Ramón (Fecha de defensa: 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 ...
Català, Pau (Fecha de defensa: 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 ...
Martínez González, Eva (Fecha de defensa: 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 ...
Zougari, Ayoub (Fecha de defensa: 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 ...