Now showing items 1857-1876 of 5566
Guasch Pesquer, Luis (Date of defense: 2006-01-15)
Este trabajo se enmarca dentro de la calidad del suministro de energía eléctrica y, en concreto, en el efecto que producen los huecos de tensión en las máquinas de inducción y en los transformadores trifásicos.<br/>En ...
Flórez Vergara, Alexy (Date of defense: 2008-02-08)
Asistimos en la actualidad a una constante pérdida de la diversidad genética de los cultivos. Paralelamente en muchas zonas del mundo, especialmente en los países más desarrollados, se produce una regresión de la agricultura ...
Martínez Torrents, Albert (Date of defense: 2015-03-17)
The contact ofthe spent nuclear fuel (SNF) with water dueto a failure in the canister would be a conservative but still plausible hypothesis in the safety assesment of a deep geologic repository (DGR). Concrete and ...
Lima, Marcos Natan da Silva (Date of defense: 2023-06-30)
(English) Pre-salt oil exploration means a new development path for Brazil. This activity stimulates investments from national and foreign companies, boosts the production of technology, promotes greater professional ...
Ávila Martín, Cristina (Date of defense: 2013-12-09)
Water of quality constitutes a scarce and essential resource for life and public health, and its sustainable management is of crucial importance. Thus, wastewater treatment, reuse and reclamation represent a key practice ...
Zhao, Zhitong (Date of defense: 2015-11-20)
From a chemical and structural point of view, hydroxyapatite (HA) is a strong candidate in biomedical applications owing to its similarity to the inorganic components of bones and teeth. HA nanoparticles (NPs) as colloidal ...
Sadowska, Joanna Maria (Date of defense: 2018-07-24)
Bone has a natural ability to regenerate. However, it cannot bridge large defects without the additional help of a supporting material. Among the different synthetic bone grafts, calcium phosphates (CaPs) are excellent ...
Bachir, Nivine (Date of defense: 2023-07-28)
(English) Acrylamide is a toxic compound and is classified as a probable human carcinogen. In recent decades, international organizations have established levels of safety for ingestion due to its harmful effects endangering ...
Barbieri, Manuela (Date of defense: 2011-07-22)
La recarrega artificial de les aigües subterrànies consisteix en infiltrar aigua als aqüífers per mitjà de les instal·lacions dissenyades per a tal fi i representa una eina important en la gestió dels recursos. A més de ...
Villarraga Díaz, Claudia Juliana (Date of defense: 2018-02-28)
The environmental conditions may play a relevant role in the stability of rock slopes. In fact, weathering can contribute to the reduction of strength of the material, while atmospheric actions may increase internal stresses ...
Olvera, Caludia (Date of defense: 2019-09-17)
Science and Technology Parks (STPs) facilitate the flow of knowledge and technology among universities; R&D institutions; companies and markets, and foster the creation and growth of innovation-based companies. Among the ...
Marín Beltrán, Isabel (Date of defense: 2017-07-21)
The Mediterranean Sea is an oligotrophic basin, while the atmosphere above is affected by continuous emissions of anthropogenic aerosols and episodic Saharan dust events. These atmospheric inputs finally deposit (as wet ...
Casas Prat, Mercè (Date of defense: 2014-01-20)
Climate change is a hot research topic due to the consequent impacts on our environment in the near future. The last report of the International Panel on Climate Change' the leading international body for assessment of ...
Solé Martí, Xavier (Date of defense: 2023-07-13)
(English) This PhD thesis is framed in the European Research Council starting grant project "Atmospheric Pressure plasma meets biomaterials far bone Cancer HEaling (APACHE)". The APACHE project is focused on the design of ...
Mushyam, Aditya (Date of defense: 2016-11-23)
The aim of this Ph.D. thesis, "Effects of flow control on flow past bluff bodies" is to study and analyzes the effects of Flow Control on various aspects and proverbs of flow past bluff bodies. Flow control techniques are ...
Àgueda Costafreda, Alba (Date of defense: 2009-10-30)
Cada any milers d'hectàrees forestals es destrueixen a causa dels incendis forestals. Investigar quins són els mecanismes que controlen la ignició i la propagació dels incendis forestals és necessari per planificar estratègies ...
Vilà Ramírez, Narciso (Date of defense: 2014-02-28)
This PhD thesis investigated the incorporation of Polyhedral Oligomeric Silsesquioxanes (POSS) in thermoplastic base materials via melt-blending procedures. Particularly, a focus is taken on the enhancement of the thermal ...
Garcia Sabaté, Anna (Date of defense: 2016-06-20)
Due to the increasing interest in space exploration, management of two-phase flows in the absence of gravity has become a key aspect in improving the efficiency of technological applications for space missions. Understanding ...
Sanjuàs Cuxart, Josep (Date of defense: 2012-03-23)
Network monitoring has become a necessity to aid in the management and operation of large networks. Passive network monitoring consists of extracting metrics (or any information of interest) by analyzing the traffic that ...
Ojeda Contreras, Jesús (Date of defense: 2013-05-28)
Nowadays there is great demand for realistic simulations in the computer graphics field. Physically-based animations are commonly used, and one of the more complex problems in this field is fluid simulation, more so if ...