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Now showing items 7741-7760 of 41750
Contributions to the interactive visualization of medical volume models in mobile devices
With current medical imaging improvements, specialists are being able to obtain correct information of anatomical structures of the human organism. By using different image visualization techniques, experts can obtain ...
Contributions to the knowledge of a new disease caused by an amoeba in ongrowing Senegalese sole, Solea senegalensis (Kaup 1858)
la costa atlántica de España. Esta patología se caracteriza por la presencia de protuberancias que se evidencian a través de la piel de los peces afectados. Estas lesiones se corresponden con nódulos en el tejido muscular, ...
Contributions to the knowledge of marine heterobranch sea slugs (Mollusca: Gastropoda): Panama biodiversity and cryptic species
The biodiversity of a country is part of its natural wealth and the study of it is fundamental for a scientific researcher, such is the case of the Panamanian marine coasts in which there has not been an exhaustive taxonomic ...
Contributions to the knowledge of the multitemporal spatial patterns of the Iberian Peninsula droughts from a Geographic Information Science perspective
La sequera, una amenaça natural i insidiosa, és un fenomen complex que involucra processos climàtics i genera grans impactes ambientals i socioeconòmics. En els últims anys l’interès en el seguiment i en els efectes de ...
Contributions to the measurement of electrical impedance for living tissue ischemia injury monitoring
Aquesta tesi es centra en el desenvolupament i l'ús d'una sonda miniaturitzada de silici per a la mesura de la impedància elèctrica de teixits vius tous. El propòsit d'aquestes mesures d'impedància és la monitorització ...
Contributions to the modulation and closed-loop control of multilevel dual-active-bridge Dc-Dc converters
Galvanically-isolated bidirectional dc-dc converters (IBDCs) have recently received more attention due to its increasing use in systems requiring energy transfer between two dc networks in both directions, requiring galvanic ...
Contributions to the multivariate Analysis of Marine Environmental Monitoring
The thesis parts from the view that statistics starts with data, and starts by introducing the data sets studied: marine benthic species counts and chemical measurements made at a set of sites in the Norwegian Ekofisk oil ...
Contributions to the Optimisation of aircraft noise abatement procedures
Tot i que en les últimes dècades la reducció del soroll emès pels avions ha estat substancial, el seu impacte a la població ubicada a prop dels aeroports és un problema que encara persisteix. Contenir el soroll generat ...
Contributions to the performance evaluation and improvement of the IPv6 routing protocol for low-power and lossy networks
Wireless Sensor Networks (WSNs) have become increasingly important. These networks comprise sensor and actuator nodes that enable intelligent monitoring and control applications in a wide spectrum of environments including ...
Contributions to the planning and analysis of factorial designs
The thesis is structured in five articles. In the first article, two methods are compared to analyze the significance of the effects: the Lenth method and the one based on the estimation of the variance of the effects from ...
Contributions to the risk assessment of major accidents in port areas
Esta tesis se presenta como un conjunto de artículos (ya publicados en revistas internacionales, con la excepción del Artículo 6) precedidos por una serie de capítulos introductorios. 1. Introducción. Describe los puertos ...
Contributions to the routing of traffic flows in multi-hop IEEE 802.11 wireless networks
The IEEE 802.11 standard was not initially designed to provide multi-hop capabilities. Therefore, providing a proper traffic performance in Multi-Hop IEEE 802.11 Wireless Networks (MIWNs) becomes a significant challenge. ...
Contributions to the security and privacy of electronic ticketing systems
Un bitllet electrònic és un contracte en format digital entre dues parts, l'usuari i el proveïdor de serveis, on hi queda reflectit l'acord entre ambdós per tal que l'usuari rebi el servei que desitja per part del proveïdor. ...
Contributions to the security of cognitive radio networks
The increasing emergence of wireless applications along with the static spectrum allocation followed by regulatory bodies has led to a high inefficiency in spectrum usage, and the lack of spectrum for new services. In this ...
Contributions to the study of Cartier algebras and local cohomology modules
This dissertation is devoted to the study of Cartier algebras and local cohomology modules; more precisely, we show that the Cartier algebra of a complete Stanley-Reisner ring R can only be either principally generated or ...
Contributions to the study of periodic orbits and invariant manifolds in dynamical systems
Aquesta tesi tracta l’estudi de varietats invariants i òrbites periòdiques de sistemes dinàmics discrets i continus. La memòria està dividida en dues parts que es poden llegir de manera independent. La primera part (Capítols ...
Contributions to the study of the availability of metal ions in aquatic systems
La disponibilitat de metalls per part dels organismes no depèn únicament de la concentració total sinó també de l'especiació d'aquestes subtancias. En general, la disponibilitat de les espècies metàl•liques en medis naturals ...
Contributions to the theory of Large Cardinals through the method of Forcing
The present dissertation is a contribution to the field of Mathematical Logic and, more particularly, to the subfield of Set Theory. Within Set theory, we are mainly concerned with the interactions between the largecardinal ...
Contributions to TOA-based location with wlan
Location techniques that satisfy the requirements of advanced Location-Based Services (LBS) in environments where GPS fails are needed, therefore accurate indoor positioning is becoming increasingly important. This PhD ...
Contributions to topology discovery, self-healing and VNF placement in software-defined and virtualized networks
The evolution of information and communication technologies (e.g. cloud computing, the Internet of Things (IoT) and 5G, among others) has enabled a large market of applications and network services for a massive number of ...
