Universitat de Barcelona
Ara mostrant els elements 1-20 de 52
El treball desenvolupat durant la Tesi Doctoral s’ha centrat en comprovar la potencialitat de la tecnologia electroquímica per a la preparació de micro i nanoestructures magnètiques amb diferent aplicabilitat. Com a material ...
The objective of this PhD thesis has been the study of the mechanisms that stabilize high-spin states in organic molecule-based magnetic materials. These materials require organic radicals with permanent magnetic moment ...
The Cold Spray (CS) is a novelty technique for the production of coatings within the field of Thermal Spray. The use of low work temperatures (under the melting point of the material) is what makes it different from the ...
Aquesta tesi s’ha dividit en dos blocs principals, el primer bloc tracta de la formació d’escòria durant la producció de les foses amb grafit esferoïdal i el segon bloc de la influència dels paràmetres del procés sobre la ...
Inspired by the proposal that single molecules will be functional elements of future nanoelectronic and Spintronics devices, there exists considerable interest in understanding charge transport in individual molecular ...
Groups of animals, bacterial colonies, cellular tissues and assemblies of subcellular extracts are some examples of experimental systems studied in the field of Active Soft Matter. All of them are composed of autonomous ...
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 ...
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 ...
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 ...
The thesis entiteled “Density Functional Modelling of Materials for Fuel Cell Catalysts with Reduced Content of Critical Components” deals with the following studies: • Adsorption sites at the {100} nanofacets of ceria ...
Esta tesis doctoral se ha centrado en el desarrollo de metodologías analíticas adecuadas que permitan la separación, detección, caracterización e identificación de proteínas y metabolitos como biomarcadores de diferentes ...
Uno de los principales objetivos perseguidos en el progreso en la industria pulvimetalúrgica en la última década ha estado marcado no sólo por el desarrollo y avance en la producción de polvos metálicos y de los procesos ...
In this thesis, the hydrogen obtained in a PEM water electrolizer (PEMWE) as a reactant to produce methanol when combined with the CO2 captured from the combustion of fossil fuels is proposed. Methanol is easy to manage ...
Electron Transfer (ET) plays essential roles in crucial biological processes such as cell respiration and photosynthesis. It takes place between redox proteins and in protein complexes that display an outstanding efficiency ...
En aquesta tesi s’han realitzat càlculs DFT per tal d’estudiar els sistemes TiO2 i ZnO i poder analitzar-ne les característiques de l’estructura electrònica, geometria i estabilitat energètica principalment. Primerament ...
La degradación individual de los ácidos trans-cinámico, trans-ferúlico y 4-hidroxifenilacético se llevó a cabo utilizando varios EAOPs. Se trataron disoluciones de 100 ml de cada ácido en Na2SO4 0,050 M a pH 3,0 y temperatura ...
Our society has a problem with the use of fossil fuels, due to the vast and exceeding emissions derived from human activities. Two ways could be consider to mitigate these harmful effects. On the one hand, the capture, ...
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 ...
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, ...
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 ...
