Now showing items 30-49 of 49
Calvo de la Rosa, Jaume (Date of defense: 2019-10-25)
This doctoral Thesis has been focused on the preparation of magnetic materials by different methods, the characterization of their structural characteristics, and the understanding of their mechanical and magnetic properties. ...
Ozaeta Laverde, Pablo (Date of defense: 2017-07-12)
Natural Gas with more than 80% methane has a liquefaction temperature around -165 ° C. Temperature at which the gas reduces its volume by a factor of 600/1. This operating temperature makes the use of ferritic materials ...
Cuko, Andy (Date of defense: 2018-09-24)
Properties of nanomaterials are known to be size dependent and generally are very different from those of the corresponding bulk. Such behaviour, which is strongly system and structure dependent, allows one to tune material’s ...
Alonso Benito, Gerard (Date of defense: 2019-11-29)
Two main topics are treated in this doctoral thesis from a theoretical and computational point of view: the gas capture and separation from post-combustion flue gases, and the enhanced oil recovery from oil reservoirs. The ...
Prats Garcia, Hèctor (Date of defense: 2019-03-25)
The research work presented in this thesis is divided in two main topics: gas separation and heterogeneous catalysis. Although the systems studied in one part and another are quite different, they share two fundamental ...
Oriol López, Roger (Date of defense: 2023-10-23)
[eng] Groundwater has been traditionally considered a reliable source of freshwater. However, the low replenishment rates and the increasing contamination due to different anthropogenic activities, such as the use of ...
Svobodova, Adela (Date of defense: 2022-07-19)
For the development of more compact and efficient thermal systems, nanofluids are presented as a promising option to replace conventional heat transfer fluids. Nanofluids are a suspension of low concentration of nanoparticles ...
Saranjam, Leila (Date of defense: 2023-10-30)
[eng] A compound’s solvent−water partition coefficient (log P) measures the equilibrium ratio of the compound’s concentrations in a two-phase system: as two solvents in contact or a system of micelles in an aqueous ...
Quezada Reyes, Víctor Alejandro (Date of defense: 2021-01-29)
La producción chilena de cobre procede de la hidrometalurgia y la concentración; el concentrado de cobre es tratado tradicionalmente mediante pirometalurgia. De acuerdo a Cochilco, el cobre producido en el año 2019, vía ...
Ye, Zhihong (Date of defense: 2019-11-29)
Organic micropollutants, including pharmaceuticals, personal care products (PCPs), pesticides, dyes and many other industrial chemicals have become one of the most solid barriers for the effective and safe wastewater ...
Mondelo-Martell, Manel (Date of defense: 2018-06-18)
Quantum confinement effects, understood as the changes on the structure and dynamics of a molecule when it goes from a free environment to a cavity with some characteristic length of the order of the nanometer, represent ...
Alcón Rovira, Isaac (Date of defense: 2018-03-14)
In this PhD thesis I have studied through state-of-the-art quantum simulations (mainly within the density functional theory approach, DFT) triarylmethyl (TAM) based systems with potential for future nano-devices and designed ...
Francese, Tommaso (Date of defense: 2019-03-25)
In this work, we characterized and studied the properties associated to DTA-based bistable organic molecular magnetic systems, namely PDTA and TDPDTA, respectively. In both cases, the low and high temperature phases have ...
Bedoya Escobar, Juliana (Date of defense: 2017-07-12)
La proyección fría es una técnica de proyección térmica que permite la obtención de recubrimientos metálicos y metal/cerámicos con estructuras densas (porosidad inferior a 0,1%) y libres de óxidos. De manera general, ésta ...
Garcia Cardona, Júlia (Date of defense: 2023-12-04)
[eng] Conventional catalysts for polymer electrolyte fuel cells are based on Pt supported on porous carbons, generally carbon blacks. However, Pt is expensive and scarce and is poisoned by CO, which is present in the ...
Gumí Audenis, Berta (Date of defense: 2018-04-27)
Biological membranes (BMs) are self-sealing boundaries, which confine the permeability barriers of cells and organelles and provide the means to compartmentalize functions. Apart from being crucial for the cell structure, ...
Calderón Díaz, Alejandro (Date of defense: 2019-10-24)
Renewable energies have a major role in today’s energy systems development, energy security and climate change fight. Thermal Concentrating Solar Power (CSP) has the potential to get up to 11.3% of world’s electricity ...
Blancafort Jorquera, Miquel (Date of defense: 2019-11-15)
The study of superfluid helium has been carried out mainly by physicists. In recent years, taking advantage of the potentialities presented by superfluid helium nanodroplets (HeNDs) as inert matrices at very low temperatures ...
Climent Biescas, Claudia (Date of defense: 2017-07-07)
In this thesis, different organic and organometallic molecules with interest for optoelectronic applications have been studied from a computational standpoint. The work presented in this thesis belongs to the molecular ...
Pagès Casas, Josep M. (Date of defense: 2019-07-19)
Particles dispersed in nematic liquid crystals (NLCs), also called nematic colloids, are nowadays typical experimental systems studied in the field of Soft Matter. In this scenario, the interactions and forces between ...