Now showing items 1-20 of 355
Grossi, Claudia (Date of defense: 2012-03-30)
Es los últimos años se han llevado a cabo importantes trabajos de investigación, tomando el gas radón como elemento de evaluación en modelos de transporte atmosférico y así estimar el flujo de partículas. Además la utilización ...
Barzegar, Mostafa (Date of defense: 2022-09-26)
The use of Fibre Reinforced Polymers (FRP) composites has grown in popularity over the last few decades. They offer outstanding mechanical properties combined with a low density, making them an excellent solution for many ...
Jimenez Blasco, Mercedes (Date of defense: 2015-10-16)
Con el espectro radioeléctrico cada vez más saturado, los filtros y duplexores son elementos claves de la tecnología en el mercado de dispositivos discretos para la telefonía móvil. El segmento de usuario de los sistemas ...
Ordóñez Izquierdo, Víctor Hugo (Date of defense: 2022-09-22)
Electromagnetic vibration energy harvesting is a relatively modern technology that has received relevant attention in the last decade from the research community and industry as a potential complement or alternative to the ...
Mujica Delgado, Luis Eduardo (Date of defense: 2006-06-12)
La idea básica de detección de defectos basada en vibraciones en Monitorización de la Salud Estructural (SHM), es que el defecto altera las propiedades de rigidez, masa o disipación de energía de un sistema, el cual, altera ...
Fernandes Freitas, Dino Miguel (Date of defense: 2019-11-29)
Tissue Engineering plays a vital role in tissue construct to repair, maintain or replace tissues. Those tissues can be cultivated in vivo or in vitro using devices such as bioreactors. There are several approaches to ...
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 ...
Yago Llamas, Daniel (Date of defense: 2022-01-24)
This doctoral thesis addresses topology optimization problems at a single scale. Based on this purpose, a new topology optimization approach is developed in order to improve existing and widespread techniques in the research ...
Vieira Chaves, Eduardo Walter (Date of defense: 2003-04-01)
El estudio de la mecánica computacional de fallo ha ganado creciente popularidad en los últimos años. Modelizar el comportamiento poscrítico de estructuras puede alcanzar un grado elevado de complejidad, debido a la ...
Cot Sanz, Albert (Date of defense: 2003-12-17)
Certes malalties neurològiques estan associades amb problemes en els sistemes de neurotransmissió. Una aproximació a l'estudi d'aquests sistemes és la tomografia d'emissió SPECT (Single Photon Emission Computed Tomography) ...
Rivas, José Ricardo (Date of defense: 2004-06-21)
La presente tesis doctoral trata sobre el accionamiento y control del posicionado de aperos agrícolas que configuran aspectos funcionales de máquinas tales como palas cargadoras frontales, máquinas cosechadoras de caña de ...
Márquez Ruiz, Andrés (Date of defense: 2001-09-21)
Sohrabi, Shahin (Date of defense: 2022-03-11)
Active noise cancellation is a unique approach that helps passive noise control in reducing sound levels at low frequencies; nevertheless, successful use of active noise cancellation necessitates performing numerous and ...
Monshi Tousi, Navid (Date of defense: 2023-06-16)
(English) The PhD focuses on the study of the flow around an airfoil at different Angles of Attack (AoA) with and without the implementation of Active Flow Control (AFC), while maintaining the Reynolds number constant at ...
Prieto Butillé, Elena (Date of defense: 2017-07-19)
La Xarxa de Vigilància Radiològica Ambiental de la Generalitat de Catalunya està constituïda per diversos tipus de detectors per a la mesura automàtica en continu i en temps real de la radiació ambiental. Entre ells destaquen ...
Prieto, Cristina (Date of defense: 2016-10-02)
La present tesis s’enmarca en el camp/sector de l’emmagatzematge d’energia tèrmica, concretament en el procès de disseny i optimització que comporta el desenvolupament d’una tecnologia d’emmagatzematge tèrmic. Per aquest ...
Sans Canovas, Daniel (Date of defense: 2013-06-26)
The use of composite materials in industrial applications such as aeronautical, aerospace or wind energy production has greatly increased in recent decades. Due to their inherent properties, these materials allow lighter, ...
Rotondo, Damiano (Date of defense: 2016-04-01)
This thesis presents some contributions to the state-of-the-art of the fields of gain-scheduling and fault tolerant control (FTC). In the area of gain-scheduling, the connections between the linear parameter varying (LPV) ...
Massaguer Colomer, Eduard (Date of defense: 2016-07-26)
In this work, we investigate harvesting thermoelectric energy from wasted heat in fluid networks and propose a generic tool for the simulation and sizing of thermoelectric energy harvesters, that can be used in ...
Algar Espejo, Antonio (Date of defense: 2021-02-08)
The internal cushioning systems of hydraulic linear actuators, of special interest in mobile machinery, pursue to avoid mechanical shocks at their end of stroke. The design where the piston, with perimeter grooves, regulates ...