Mostrando ítems 111-130 de 347
Pradell, Lluís (Fecha de defensa: 1989-11-16)
Sin tener en cuenta introducción y conclusiones, la tesis doctoral esta dividida en 6 capítulos. Los dos primeros tratan del ruido eléctrico asociado a los dispositivos activos (transistores Gaas Fet y Hemt) utilizados en ...
Brezmes Llecha, Jesús (Fecha de defensa: 2001-12-11)
La monitorización del grado de maduración es un tema de gran relevancia en la industria frutícola. En esta tesis doctoral se ha estudiado la viabilidad de utilizar una nariz electrónica como instrumento para monitorizar ...
Játiva Espinoza, René (Fecha de defensa: 2017-04-06)
Mobile subscriber positioning is an issue in permanent revision due to the new possibilities of relation that the knowledge of the position introduces, among users and an increasing number of devices. This problem is boarded ...
Espinosa Espinosa, Moisés Isaac (Fecha de defensa: 2015-11-23)
This thesis presents reconfigurable microwave discriminators used for the development of reconfigurable measurement circuits with high miniaturization, low power consumption, reduced weight and cost. The concept is ...
Silva Pereira, Silvana (Fecha de defensa: 2012-01-26)
Wireless sensor networks are developed to monitor areas of interest with the purpose of estimating physical parameters or/and detecting emergency events in a variety of military and civil applications. A wireless sensor ...
Atzeni, Italo (Fecha de defensa: 2014-07-08)
The modern power grid is facing major challenges in the transition to a low-carbon energy sector. The growing energy demand and environmental concerns require carefully revisiting how electricity is generated, transmitted, ...
Pons Freixes, Sergi (Fecha de defensa: 2016-01-28)
Water is the most important resource for living on planet Earth, covering more than 70% of its surface. The oceans represent more than 97% of the planet total water and they are where more than the 99.5% of the living ...
Gutiérrez Antuñano, Miguel Ángel (Fecha de defensa: 2019-07-08)
This Ph.D. thesis addresses remote sensing of the atmosphere by means of lidar and S-band clear-air weather radar, and related data signal processing. Active remote sensing by means of these instruments offers unprecedented ...
Ardanuy Della, Antoni (Fecha de defensa: 2020-12-14)
This thesis aims at exploring the limits of low peak-power, low-cost, all-semiconductor, compact lidars (laser radars) for range-resolved remote sensing of atmospheric aerosols and clouds. The systems investigated are based ...
Maule, Massimiliano (Fecha de defensa: 2023-06-16)
(English) Earmarked as the revolutionary 5G key enabler, Network Slicing (NS) is the embodiment of the concept of running multiple logical networks as virtually independent business operations on a common physical ...
Sayyad Khodashenas, Pouria (Fecha de defensa: 2014-06-05)
Triggered by emerging services such as high-definition video distribution or social networking, the IP traffic volume has been exponentially increasing to date. Furthermore, the traffic growth rate will not stop here due ...
Pablos Hernández, Miriam (Fecha de defensa: 2016-10-03)
The first three of a series of new generation satellites operating at L-band microwave frequencies have been launch in the last decade. L-band is particularly sensitive to the presence of water content in the scene under ...
Belmonte Molina, Aniceto (Fecha de defensa: 1995-05-04)
El trabajo se divide en tres partes: 1) estudio sintético de las técnicas de calculo de los efectos de las fluctuaciones aleatorias del índice de refracción inducidas por la turbulencia atmosférica en la propagación de ...
Pascual De La Puente, Santiago (Fecha de defensa: 2020-01-31)
Deep learning has affected the speech processing and generation fields in many directions. First, end-to-end architectures allow the direct injection and synthesis of waveform samples. Secondly, the exploration of efficient ...
Izquierdo Fernández, Benjamín (Fecha de defensa: 2011-09-22)
Introduction of wireless communications systems in railway communications are at the origin of this thesis. Ifercat, the company in charge of the development of Línia 9 of Barcelona Metro, decided that wireless systems ...
Villarino Villarino, Ramón María (Fecha de defensa: 2004-09-08)
El estudio de la medida de la salinidad del océano junto con la humedad del terreno constituyen dos de las aplicaciones más importantes dentro del mundo de la teledetección que no han sido estudiadas hasta la fecha. ...
Oikonomakou, Maria (Fecha de defensa: 2019-04-10)
During the recent years, a huge augmentation of the data traffic volume has been noticed, while a further steep increase is expected in the following years. As a result, questions have been raised over the years about the ...
Miliotis, Vasileios (Fecha de defensa: 2016-03-11)
Mobile data offloading has been proposed as a solution for the network congestion problem that is continuously aggravating due to the increase in mobile data demand. The concept of offloading refers to the exploitation of ...
Sharifi, Leila (Fecha de defensa: 2016-11-23)
Energy has been emerged as a first-class computing resource in modern systems. The trend has primarily led to the strong focus on reducing the energy consumption of data centers, coupled with the growing awareness of the ...
Liesegang Maria, Sergi (Fecha de defensa: 2022-11-07)
In the last few years, a lot of effort has been put into the development of the fifth generation of cellular networks (5G). Given the vast heterogeneity of devices coexisting in these networks, new approaches have been ...