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Mostrando ítems 7630-7649 de 41821
Contribution to the characterization of interferometric radiometers devoted to Earth observation: application to the MIRAS/SMOS payload
The variability of soil moisture and ocean salinity controls the continuous exchange of water between the oceans, the atmosphere and the land. Therefore, the accurate and periodic measurements of these geophysical variables ...
Contribution to the construction of fingerprinting and watermarking schemes to protect mobile agents and multimedia content
The main characteristic of fingerprinting codes is the need of high error-correction capacity due to the fact that they are designed to avoid collusion attacks which will damage many symbols from the codewords. Moreover, ...
Contribution to the design of VANET routing protocols for realistic urban environments
One of the main concerns of the cities' administration is mobility management. In Intelligent Transportation Systems (ITS), pedestrians, vehicles and public transportation systems could share information and react to any ...
Contribution to the development of autonomous satellite communications networks : the internet of satellites
The space is experiencing a revolution due to the em ergence of satellite services to satisfy environmental, socio-econom ic, and geo-political demands. Earth Observation satellite systems have become dependable resources ...
Contribution to the development of efficient algorithms for solving complex single-objective and multi-objective optimization models
L’optimització en enginyeria de processos és un àrea molt estesa que ha anat evolucionant al llarg del temps i ha passat de ser una metodologia d'interès purament acadèmic a una tecnologia que té, i que contínua tenint, ...
Contribution to the development of hydrometallurgical separation and concentration techniques focused on precious metals recovery
Aquesta Tesi Doctoral es centra en la recuperació de metalls precisos presents en dissolucions d'àcid clorhñidric, per mitjà de tècnqiues tant emergents com ben establertes basades en els principis de la tecnologia d'extracció ...
Contribution to the development of mathematical programming tools to assist decision-making in sustainability problems
L'activitat humana està excedint la capacitat de resposta de la Terra, el que pot tenir implicacions perjudicials per al futur benestar humà i del medi ambient. Sens dubte, severs canvis estructurals seran necessaris, el ...
Contribution to the development of methods and systems for the automatization during the early stages of bioprocess development
This thesis is framed within the field of red biotechnology and more specifically in the development of bioprocesses for cell species that feature some therapeutical interest, either for the production of vaccines and ...
Contribution to the development of more efficient environmental policies via multi-objective optimization and environmentally extended input-output models
Al mercat globalitzat d’avui en dia la falta de coneixement sobre la distribució dels impactes entre els estats dificulta el disseny de polítiques efectives per la reducció, a escala global, de la degradació ambiental. ...
Contribution to the development of more sustainable process industries under uncertainty
En les últimes dècades, els reptes originats com a resultat dels elevats preus de l'energia i la creixent pressió per reduir les emissions de gasos d'efecte hivernacle han estimulat un gran interès en la investigació ...
Contribution to the development of new bio-based thermal insulation materials made from vegetal pith and natural binders : hygrothermal performance, fire reaction and mould growth resistance
The building sector is moving towards new approaches to energy efficient design, which includes not only the improvement of the thermal performance of the building envelope but also the reduction of the embodied energy. ...
Contribution to the development of pico-satellites for Earth observation and technology demonstrators
The submitted Ph.D. thesis is a contribution to the development of pico-satellites and nano-satellites for Earth Observation and Technology Demonstrators. Development of satellites with a mass from 1 kg up to 10 kg has ...
Contribution to the hydrogeological knowledge of the high mountain karst aquifer of the Port del Comte (SE, Pyrenees)
This thesis has aimed to improve the hydrogeological knowledge of the Port del Comte Massif (PCM), a karstic aquifer system located in the south-eastern sector of the Pyrenees that plays a strategic role in the provision ...
Contribution to the improvement of integral equation methods for penetrable scatterers
The study of the electromagnetic phenomena along the last two centuries has brought about outstanding contributions for the human progress. The electromagnetism represents still now, at the beginning of the third millenium, ...
Contribution to the improvement of the performance of wireless mesh networks providing real time services
Nowadays, people expectations for ubiquitous connectivity is continuously growing. Cities are now moving towards the smart city paradigm. Electricity companies aims to become part of smart grids. Internet is no longer ...
A contribution to the incorporation of sociability and creativity skills to computers and robots
This dissertation contains the research and work completed by the PhD candidate on the incorporation of sociability and creativity skills to computers and robots. Both skills can be directly related with empathy, which is ...
Contribution to the model and navigation control of an autonomous underwater vehicle
This thesis deals with the further development of an existing underwater vehicle for autonomous navigation. The vehicle was conceived to navigate over the sea surface and, at certain fixed points, to dive vertically in ...
Contribution to the modelling and evaluation of radio network slicing solutions in 5G
Network slicing is a key feature of 5G architecture that allows the partitioning of the network into multiple logical networks, known as network slices, where each of them is customised according to the specific needs of ...
Contribution to the operation of smart rural distribution grid with energy resources for improvement of the quality of service
This Thesis aims for contributing in the deployment and operation of Smart Grid, in isolated rural areas. As it would be expected, technological developments and investments in the electrical field have mainly focused on ...
Contribution to the Optimization and Flexible Management of Chemical Processes
La industria química ha experimentado en las últimas décadas un aumento en la competencia por la cual las empresas se ven obligadas a adaptarse a un mercado cambiante y cada vez más exigente. Aunque la globalización ha ...
