Universitat de Barcelona
Now showing items 94-113 of 217
La solució del problema d'N cossos a la Teoria General de la Relativitat requereix la determinació, al mateix temps, del camp gravitatori deIs cossos considerats. La solució a aquest problema fou donada per primera vegada ...
En los últimos años la Cromodinámica Cuántica (QCD) ha pasado de ser una candidata a describir las interacciones fuertes entre hadrones a ser un elemento indiscutible, junto con el modelo de Glashow, Weinberg y Salam de ...
El campo que estudia las propiedades y comportamiento de las proteínas así como las interacciones entre ellas es tan complejo que a día de hoy resulta complicada su caracterización en detalle, sea utilizando herramientas ...
Los trabajos de esta memoria persiguen un doble objetivo. Por un lado se ha pretendido ahondar en modelos de campo cristalino para cationes 3d(n) y su correlación con los datos experimentales, de sustancias de interés ...
En este trabajo se presenta un estudio experimental de la transformación martensítica de la aleación ternaria Cu Zn Al. El estudio ha sido realizado mediante el uso de un dispositivo de medida, original, que permite ...
En la pasada década, se han observado nuevas bandas de luminescencia en los semiconductores cuando son excitados fuertemente por medio de láseres (fotoexcitacion). La interpretación del origen de estas bandas era variado ...
En esta Tesis se llega a resultados originales relacionados con las propiedades dinámicas de las sistemas de muchos cuerpos o grados de libertad. En particular se estudian propiedades estocásticas y ergódicas de modelos ...
Online social networks (OSNs) enable researchers to study the social universe at a previously unattainable scale. The worldwide impact and the necessity to sustain their rapid growth emphasize the importance to unravel the ...
This thesis contains my doctoral research in condensed soft matter physics prepared at the University of Barcelona. It covers the interaction of active Janus particles with liquid-liquid and liquid-solid interfaces, both ...
The revolution of ICT technologies in Digital Era combined with progress of ComplexitySciences have lead to the emergence of Computational Social Science, whose purposeis to analyze society in a quantitative way. ...
[eng] The word "emergence" refers to the formation of collective behaviors, actions not undertaken by the components of a system when isolated. On one hand, we have the components—particles or agents, ranging from water ...
[eng] Quantum mechanics is a fascinating field to explore, where its effects are usually non- trivial and counterintuitive. In this Thesis, we focus on systems with a small number of particles in low dimensions, where the ...
In some types of fire, namely, smoldering fires or involving polymers without flame, gases and volatiles appear before smoke is released. Most of the fatalities registered for fires, are caused due to the intoxication of ...
Two decades ago, microfluidic technology begun to make its appearance in the fields of drug delivery and biomedical engineering to irrevocably revolutionize them. It was quickly realized how microchannels can aid formulation ...
Most of the real-world complex systems are best described as complex networks and can be mathematically described as oscillatory systems, coupled with the neighbours through the connections of the network. The flashing of ...
En aquesta tesi s’ha desenvolupat un mètode de mesura de la funció de transmissió òptica policromàtica d’instruments fotogràfics (sistema constituït per la lent formadora de la imatge i la placa de registre fotogràfic). ...
[eng] This thesis focuses on the functional design and preparation of different kind of nanocomposites and their applications in energy conversion and storage technologies, particular in OER, HER, H2O2ER and LSBs. For the ...
Complex networks are mathematical representations of the interaction patterns of complex systems. During the last 20 years of Network Science, it has been recognized that networks from utterly different domains exhibit ...
[eng] This thesis presents the recent results achieved during my Ph.D. This is a research project in the field of condensed matter physics, under the supervision of Dr. Michael Foerster of the ALBA Synchrotron and Dr. ...
Living organisms and systems are continually converting energy, either internally stored or transduced from their surroundings, into motion. This activity and the resulting self-propulsion constantly push these biological ...
