Mostrando ítems 3921-3940 de 5496
Martínez Roda, Joan A. (Joan Antoni) (Fecha de defensa: 2017-04-27)
Image formation in the retina is the first stage in the visual process (optical stage), which is completed with photoreceptor stimulation and distribution of the generated signals (retinal stage), transmission to the visual ...
Torrents Gómez, Aurora (Fecha de defensa: 2011-12-22)
Desde hace años se han realizado múltiples investigaciones que tratan sobre la fiabilidad de la percepción de las distancias en profundidad y la influencia del entorno. En ocasiones, las pistas presentes en el espacio ...
Carrera Gallissà, Enric (Fecha de defensa: 2014-03-23)
Drape indicators reported by textile researchers from 1950 to 2013 are examined. A total of 36 indicators were identified that are described in detail as regards geometric principle and calculation in order to unify existing ...
Oliveras Samitier, Jordi (Fecha de defensa: 1983-01-10)
Estudia la creación de nueva población en la España del Siglo XVIII y analiza tanto los diferentes modelos como las opciones teóricas planteadas. Basándose en un trabajo de mohino facilita documentación sobre algunos ...
Fiz Fernández, José Antonio (Fecha de defensa: 2016-07-13)
In the present thesis 3 detailed studies were carried out that spring from 3 different diagnostic techniques that include bronoscopy, tuberculine bacillus infection diagnosis, and the control of oxygen therapy in chronic ...
Estruch i Tena, Carles (Fecha de defensa: 2016-07-13)
We propose to develop, build and validate a new Concept of Bridge composed of Inflatable Beams, Lightweight, Modular and Portable (PVH-LMP) for surface transport vehicles, which uses pressurized air-filled beams made of ...
Rojas Hernández, Miguel Ángel (Fecha de defensa: 2019-11-20)
Nowadays, the growing demand for frequency-free bands for new emerging wireless technologies and fixed frequency allocation policies in the use of the radio spectrum have resulted in a saturation of the radio frequency ...
Hormigo Ventura, Juan Pedro (Fecha de defensa: 2020-11-25)
Urban tolls are nowadays one of the most promising instruments to regulate the entry of vehicles into cities, given the flexibility and versatility granted by the available technology. Although, initially, they represent ...
Solé Gustems, Miquel (Fecha de defensa: 2012-03-29)
La recogida actual de residuos de aparatos eléctricos y electrónicos (RAEE) es muy reducida, sobre todo para la categoría de los pequeños aparatos eléctricos y electrónicos. Con el objetivo de aumentar esta recogida, se ...
Díaz de Terán López, José Ramón (Fecha de defensa: 2013-09-12)
Durante los últimos años se han venido realizando viaductos con cimbra autolanzable y una nueva secuencia evolutiva de la sección transversal. Esta nueva secuencia evolutiva consiste en alcanzar un esquema autoportante que ...
Michiardi, Alexandra (Fecha de defensa: 2006-02-24)
Desde que fueron descubiertas en el principio de los años sesenta, las aleaciones con memoria de forma de NiTi han suscitado un interés creciente. Hoy en día, estos materiales se emplean extensivamente en el campo biomédico. ...
Rossini, Francesco (Fecha de defensa: 2014-06-05)
The topic discussed in this dissertation is the study of the public spaces in Hong Kong. In recent decades the city has established itself as a major financial centre and production, aiming to be one of global cities of ...
Monterde Gascón, María Carmen (Fecha de defensa: 2023-02-27)
(English) The transition towards to low carbon energy generation is promoting the installation of renewable energy sources, their successful deployment requires efficient energy storage systems in order to meet demand. ...
Mora Acosta, Josue (Fecha de defensa: 2001-12-20)
The target of this work is to contribute to the enhancement of numerical methods for the simulation of complex thermal systems. Frequently, the factor that limits the accuracy of the simulations is the computing power: ...
Sadurní Caballol, Alexandre (Fecha de defensa: 2012-09-28)
The aim of this work is to study the thermal behavior and fluid-dynamic systems, vapor compression refrigeration and its components (heat exchangers, expansion devices, compressors, connecting pipes, pumps and pressure ...
Albareda Valls, Albert (Fecha de defensa: 2013-01-18)
Concrete-filled tubes have been increasingly used these recent decades thanks to their improved structural behavior, especially under compression.Concrete filling in these sections improves ¡ts compressive strength thanks ...
Casas González, Guillermo (Fecha de defensa: 2018-10-30)
In this work we study the numerical simulation of particle-laden fluids, with a focus on Newtonian fluids and spherical, rigid particles. We are thus dealing with a multi-phase (more precisely, a multi-component) problem, ...
Irazábal González, Joaquín (Fecha de defensa: 2017-10-06)
The development of high-speed train lines has increased significantly during the last twenty-five years, leading to more demanding loads in railway infrastructures. Most of these infrastructures were constructed using ...
Serra López, Roger (Fecha de defensa: 2018-05-22)
Structural health monitoring has been defined as the acquisition, validation and analysis of technical data to facilitate life- cycle management decisions. It is the result of a convergent path from many previous existing ...
Kessentini, Hamdi (Fecha de defensa: 2014-02-14)
In this thesis a flat plate collector (FPC) with plastic transparent insulation materials (TIM) and a low-cost overheating protection system destined for heat supply from 80 to 120°C is presented. A ventilation channel ...