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Ara mostrant els elements 31696-31715 de 42932
On the design of high-efficiency RF Doherty power amplifiers
Power amplifiers (PAs) are one of the most crucial elements in wireless standards becasue they are the most power hungry subsystems. These elements have to face an important issue, which is the power efficiency, a fact ...
On the design of microwave radiometers with digital beamforming and polarization synthesis for earth observation.
Actualment, la comunitat científica ja disposa de les primeres mesures radiomètriques a banda L, polarimètriques i multi-angulars fetes de l’espai. Això és gràcies al recent llançament de la missió de la Eurepean Space ...
On the design of power- and energy-efficient functional units for vector processors
Vector processors are a very promising solution for mobile devices and servers due to their inherently energy-efficient way of exploiting datalevel parallelism. While vector processors succeeded in the high performance ...
On the detection of ionospheric waves, relationship with earthquakes and tsunamis
The research of this thesis addresses the detection and characterization of ionospheric waves and its application to traveling ionospheric disturbances (TIDs) induced by the natural events, such as earthquakes and tsunamis. ...
On the detection of multi-channel man-in-the-middle attacks against Wi-Fi networks
One of the advanced Man-in-the-Middle (MitM) attacks is the Multi-Channel MitM (MC-MitM) attack, which manipulates encrypted wireless frames between clients and the Access Point (AP) in a WLAN. Key reinstallation attacks ...
On the development of computational tools for the study of protein-protein interactions and protein-protein binding
Proteins are involved in almost all cell processes, with physical interaction between them being key to their function and dictated by its 3D structure. Hence, the study of protein-protein interactions and protein-protein ...
On the development of decision-making systems based on fuzzy models to assess water quality in rivers
There are many situations where a linguistic description of complex phenomena allows better assessments. It is well known that the assessment of water quality continues depending heavily upon subjective judgments and ...
On the development of direct numerical simulations for falling films
Multiphase flows present a rich variety of physical instabilities, which may turn into a set of interesting techonological features. In the particular case of vertical fallings films, these features provide with short ...
On the diagnostic ability assessment of medical tests with right-censored data
[eng] INTRODUCTION: A diagnostic test is a measurement taken from a subject with the aim of diagnosing a certain condition of interest, such as diseased patient or healthy individual. Typically, diagnostic tests are ...
On the diagonals of a Rees algebra
The aim of this work is to study the ring-theoretic properties of the diagonals of a Rees algebra, which from a geometric point of view are the homogenous coordinate rings of embeddings of blow-ups of projective varieties ...
On the digital design and verification of pixel detector ASICs for fast timing applications and other fields of science
La contribución principal de esta tesis consiste en el diseño, implementación y verificación, mediante el uso de herramientas digitales, de una red de distribución de reloj para FastICpix, un detector píxel híbrido capaz ...
On the displacement current in THz quantum nanodevices: application to the simulation of graphene transistors
En la actualidad, la comunidad científica está trabajando en dispositivos electrónicos en la nanoscala para frecuencias de TeraHertzios (THz). Para tales frecuencias, la corriente de desplazamiento -la variación temporal ...
On the Dynamics Around the Collinear Points in the Sun-Jupiter System
This work aims the study of the Rapid Transition Mechanism that explains some properties of orbits of some spatial objects, as for instance, comet 39P/Oterma, which will be the main object of this research. Considering ...
On the Economics of Happiness and Climate Change
The present study bridges the field of happiness economics with the economics of climate change, based on two research questions. One is related to the effects of (extreme) climate events on individual happiness and their ...
On the edge of the knife: The establishment of public-private partnerships in education. England and Portugal (1980-2015)
Les Aliances Públiques Privades han constituït una estratègia adoptada pels governs per compartir responsabilitat, controlar costos i augmentar l'eficiència a través de la implementació de mecanismes de competència. ...
On the effect of the Sun's gravity around the Earth-Moon L1 and L2 libration points
In this thesis we explored some aspects of the dynamics around the Earth-Moon L1 and L2 points in the context of two Restricted Four Body Problems: the Bicircular Problem (BCP) and the Quasi-bicircular Problem (QBCP). Both ...
On the emergence and sustainability of corruption: An experimental analysis
En este trabajo estudiamos diferentes dimensiones del fenómeno de la corrupción.Debido a la dificultad que conlleva estudiar la corrupción, hemos escogido abordar este tema utilizando principalmente la metodología experimental.
On the evaluation of mixing in heterogeneous porous media: from laboratory characterization to the design of engineered chaotic flows for practical application
(English) Groundwater is now under high stress levels and its quality and quantity arise as one of the most interesting and necessary topics our community should address. This doctoral thesis is focused on the quality of ...
On the evaluation of temporally extended experiences
La evaluación de las experiencias extendidas en el tiempo se puede hacer de muchas formas. El paradigma --hedometer' en economía sugiere que la evaluación global de la experiencia se puede explicar por las impresiones de ...
On the evolution of cancer genomes : Signatures of selection reveal cancer genes across multiple tumor types
Tumors are composed of fast-growing cells that become malignant under selection of biological functions needed for cancer development. In this thesis, I intend to uncover the basic evolutionary principles underlying cancer ...
