Now showing items 1-20 of 100

    A Novel Column Format for on-Chip Liquid Chromatography Fabricated in Cyclo Olefin Polymer 

    Illa Vila, Xavier (Date of defense: 2010-09-28)

    This thesis describes a novel column format to be used in pressure-driven reversed-phase liquid chromatography. The column contains an ordered pillar array where the stationary phase is supported, and it is fabricated in ...

    A Novel Sensor Concept for Selective and Self-Powered Gas Detection 

    Hoffmann, Martin W. G. (Date of defense: 2015-01-19)

    Les tecnologies de sensors de gas basades en semiconductors presenten limitacions importants de selectivitat i consum d'energia. Per tant, esdevé necessari l’assaig de nous conceptes de dispositius capaços de satisfer ...

    Advanced TEM imaging tools for materials science 

    López Conesa, Lluís (Date of defense: 2015-12-18)

    Being able to directly relate the final properties with the intimate structure provides a unique insight into the functionality of materials and devices, especially when compared to the necessarily statistical nature of ...

    Analysis and characterisation of biological samples in nano and microfluidic devices using AC and DC electric fields 

    Castillo Fernández, Óscar (Date of defense: 2012-12-10)

    The present thesis work titled “Analysis and characterisation of biological samples in nano and microfluidic devices using AC and DC electric fields” has as main objective study the effects that electric fields have biologic ...

    Anàlisi termo-mecànica d'estructures micromecanitzades per a sensors de gas 

    Puigcorbé Punzano, Jordi (Date of defense: 2003-10-16)

    En aquest treball s'ha establert una metodologia d'anàlisi i caracterització del comportament tèrmic, mecànic i termomecànic d'estructures micromecanitzades per a sensors de gas a través de la combinació de simulacions ...

    Análisis de óxidos de silicio y estructuras multicapa para aplicaciones microelectrónicas 

    Moreno Pastor, José Antonio (Date of defense: 2000-09-14)

    A lo largo de este trabajo se ha estudiado la metodología de análisis de óxidos de silicio mediante elipsometría, la espectroscopía infrarroja y la espectroscopía de fotoelectrones de rayos X (XPS). Se han establecido las ...

    Análisis dinámico de atmósferas con matrices de sensores mediante procesado de señal no-lineal 

    Pardo Martínez, Antonio (Date of defense: 2000-06-23)

    El presente trabajo se enmarca dentro de las tareas centradas en el campo de modelización y procesado de señal, desarrolladas en el Departament d’Electrònica de la Facultad de Física de la Universitat de Barcelona. En ...

    Atomistic study of structural and electronic transport properties of silicon quantum dots for optoelectronic applications 

    García Castelló, Núria (Date of defense: 2014-04-28)

    Introduction It is undisputed that the silicon became the material most widely used in electronics in recent decades[1,2]. The qualities of silicon are well known, from its abundance and low cost to its ability to easily ...

    Bioimpedance & dielectrophoresis instrumentation equipments for living cells manipulation and monitoring 

    Moral Zamora, Beatriz del (Date of defense: 2016-02-02)

    Since the first microfluidic device was developed in the early 1950s, when the basics for today’s inkjet technology were set, thousands of publications have appeared related to the topic. The increasing interest on these ...

    Bioimpedance monitoring system for pervasive biomedical applications 

    Punter Villagrasa, Jaime (Date of defense: 2016-01-26)

    Nowadays, Point-of-Care (PoC) are making a shifting of the classical medical procedures and treatment protocols, enhancing the performance of medical surveillance in all the world. It is a reliable and very cost-effective ...

    Caracterización por espectroscopia Raman de semiconductores Cu2ZnSnS4 para nuevas tecnologías fotovoltaicas 

    Fontané Sánchez, Xavier (Date of defense: 2013-12-10)

    El trabajo se ha centrado en el análisis del compuesto Cu2ZnSnS4 (CZTS) mediante la técnica de espectroscopia de dispersión Raman, para una mayor optimización de los procesos de crecimiento de capas absorbedoras y la ...

    Characterisation of CuInS2 Films for Solar Cell Applications by Raman Spectroscopy 

    Álvarez García, Jacobo (Date of defense: 2002-04-19)

    CuInS2 is a good candidate as photovoltaic absorber for the fabrication of high efficient and low cost solar cells. In this work, the vibrational properties of CuInS2 films have been studied by means of Raman Spectroscopy, ...

    Compositional Engineering of Colloidal Nanoparticles for Energy Conversion 

    Luo, Zhishan (Date of defense: 2016-12-19)

    The main objective of this thesis focuses on compositional design and engineering colloidal NPs and their application in energy conversion. This principally included the synthesis and characterization of colloidal NPs, and ...

    Conducting polymers for micro and nano electrodes. Application to biomolecule sensing and release 

    Galán Cascales, Teresa (Date of defense: 2015-05-14)

    This thesis aims at providing a better understanding of the micro- and nanofabrication of conducting polymers for biomedical devices and presents novel processes that widen the application range of conducting polymers in ...

    Construction of versatile biomolecule nano-platforms via Dip-pen Nanolithography and their application in bio-sensing and cell differentiation 

    Oberhansl, Sabine (Date of defense: 2012-10-29)

    The present thesis entitled “Construction of versatile biomolecule nano-platforms via Dip-pen Nanolithography and their application in bio-sensing and cell differentiation” aims at contributing to the field of Nanobiotechnology, ...

    COTS Analog Prototype for LHCb's Calorimeter Upgrade 

    Abellan Beteta, Carlos (Date of defense: 2015-01-30)

    The objective of this thesis is to present a proposal for the analogue signal processing chain needed for the LHCb calorimeter upgrade improving the design used originally. The design contains several novelties: the ...

    Crystalline and vibrational properties of kesterites 

    Dimitrievska, Mirjana (Date of defense: 2015-12-21)

    The main objective of this thesis is to deepen the knowledge of fundamental properties of kesterite materials (Cu2ZnSnS4 and Cu2ZnSnSe4) and their solid solutions Cu2ZnSn(S,Se)4, which are used as absorber layers in solar ...

    Desenvolupament de microgeneradors inercials electromagnètics en tecnologia de microsistemes per a la recuperació d’energia mecànica residual de l’ambient 

    Fondevilla Sala, Núria (Date of defense: 2012-07-20)

    Aquesta tesi descriu el desenvolupament d’un microgenerador ressonant compatible amb la tecnologia de Si, especialment adequat per extreure energia mecànica residual de l’ambient. Aquesta mena de font “perpètua” d’energia ...

    Detecció d'estats inadequats per la conducció d'un vehicle a partir de la degradació del control dinàmic 

    Bartra Cisa, Ariadna (Date of defense: 2016-01-29)

    Una de les principals causes d’accidents d’automòbil és l’estat inadequat del conductor. Diversos estudis situen entre el 16% i el 30% el nombre d'accidents de trànsit relacionats amb el cansament, fatiga, somnolència i ...

    Detection of Transcription Factor Binding Sites by Means of Multivariate Signal Processing Techniques 

    Pairó Castiñeira, Erola (Date of defense: 2015-07-21)

    Gene expression is a complex and highly regulated process. Most of the regulation is controlled by short DNA sequences that can be bound by some proteins called transcription factors (TF). Binding to these sites, the ...