E-Dissertationen: Suche
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Precision calculations for the low-energy dynamics of pions and nucleons
(2012-07-18)
QCD is strongly coupled at long distances and therefore non-perturbative methods are required to understand its low-energy properties, e.g. to answer such basic questions as of the origin of the nucleon mass. In this thesis ...
Inferring complex networks from time series of dynamical systems: Pitfalls, misinterpretations, and possible solutions
(2012-07-26)
Understanding the dynamics of spatially extended systems represents a challenge in diverse scientific disciplines, ranging from physics and mathematics to the earth and climate sciences or the neurosciences. This challenge ...
Emergent Disorder: Nano-Domain Formation Near the First-Order Mott-Hubbard Transition
(2012-07-23)
Since the Mott-Hubbard metal-insulator transition is a first order phase transition, we can always find a phase coexistence region in the phase diagram. In this region, the metallic state and the insulating state coexists, ......
Experimental and numerical studies on solute transport in unsaturated heterogeneous porous media under evaporation conditions
(2012-08-31)
Groundwater level rise, root water uptake, or evaporation induces local upward water and solute fluxes in soils, causing soil salinization and rise of contaminants to the soil surface, and influencing the migration of ...
Small-scale studies of the Milky Way disc and halo gas with absorption-line spectroscopy
(2012-12-13)
Progressive studies in the last decades have shown that the interstellar medium (ISM) is more complex and dynamic than previously thought. The presence of the small-scale structures, structures on scales below 1 pc, has ...
Bestimmung von Intensität und Position des extrahierten Elektronenstrahls an ELSA mittels Hochfrequenzresonatoren
(2012-05-09)
Am Physikalischen Institut der Universität Bonn werden Experimente zur Untersuchung der Nukleonenstruktur betrieben. Aus dem Speicherring der Beschleunigeranlage ELSA wird zu diesem Zweck ein Elektronenstrahl von einigen ...
Ultrastrukturelle Analyse sowie Steuerung der Substratadhäsion kardialer Zellen
(2012-06-04)
Fokaladhäsionen symbolisieren nicht nur einfache starre Verankerungspunkte der Zelle an das extrazelluläre Substrat, sondern sie stellen hochdynamische Multiproteinaggregate innerhalb der Zelle dar, die je nach Anforderung ...
Single impurity atoms immersed in an ultracold gas
(2012-06-20)
In this thesis, experiments with an ultracold gas doped with few and single atoms of another species are presented.
The techniques to adequately prepare and manipulate an ultracold Rb gas and to dope it with a precisely ...
The techniques to adequately prepare and manipulate an ultracold Rb gas and to dope it with a precisely ...
Analyses of Adhesion Topography and Fluctuations in Bio-Membranes by Advanced Optical Microscopy
(2012-05-21)
The cell membrane not only mechanically separates the interior of the cell from the exterior environment but is also an active organelle involved in a host of functions like maintaining osmotic balance, aiding in ...
Measurement of the top quark pair production cross section with the ATLAS detector at LHC in pp collisions at √s =7 TeV in dilepton final states
(2012-06-04)
The production cross section of top quark pairs in proton-proton collisions at center-of-mass energy of 7 TeV recorded with the ATLAS detector at the CERN Large Hadron Collider is measured. The goal of the analysis is to ...