The Faculty of Mathematics and Natural Sciences: Search
Now showing items 21-30 of 33
Second harmonic generation spectroscopy of plasmonic nanostructures and metamaterials
(2015-08-20)
Plasmonic nanostructures and metamaterials composed of those are promising tools for the manipulation and generation of light. Their key feature is an engeneerable optical response, which is based on the possibility to ...
Development of anFPGA-based Data Reduction System for the Belle II DEPFET Pixel Detector
(2015-07-14)
The innermost two layers of the Belle II detector at the KEKB collider in Tsukuba, Japan will be covered by highly granular DEPFET pixel sensors. The large number of pixels lead to a maximum data rate of 256 Gbps, which ...
Fuel Cells, Metal/Air Batteries: characterization of dual thin-layer flow through cell and determination of solubility and diffusion coefficient of oxygen in aqueous and non-aqueous electrolytes
(2015-07-08)
Until now the energy demand is substantially met by fossil fuels such as natural gas, oil and coal. The available resources are finite. Forecasts assume that at constant consumption the availability of oil reserves in 2050 ...
Many-Body Anderson Localization of Strongly Interacting Bosons in Random Lattices
(2015-05-27)
In the present work, we investigate the problem of many-body localization of strongly interacting bosons in random lattices within the disordered Bose-Hubbard model. This involves treating both the local Mott-Hubbard physics ...
Ab-initio Untersuchungen an frühen Ausscheidungsphasen der Aluminium(-Magnesium-)Kupfer-Legierungen
(2015-07-23)
Frühe Ausscheidungscluster der AlCu-Legierungen und der AlMgCu-Legierungen werden mit numerischen ab-initio Methoden mit Hilfe des DFT-Programmcodes SIESTA untersucht. Cu-Atome favorisieren innerhalb der AlCu-Legierungen ...
Design, Aufbau und Test einer neuen Ausleseelektronik für das Crystal-Barrel-Kalorimeter
(2015-08-28)
Die Baryonspektroskopie stellt eine gute Möglichkeit dar, Vorhersagen von Quarkmodellen und modernen Gitter-QCD-Rechnungen zu prüfen und so die Quantenchromodynamik (QCD) im nicht pertubativ lösbaren Energiebereich zu ...
Braiding Knots with Topological Strings
(2015-08-28)
For an arbitrary knot in a three-sphere, the Ooguri-Vafa conjecture associates to it a unique stack of branes in type A topological string on the resolved conifold, and relates the colored HOMFLY invariants of the knot to ...
Intensitäts- und Energieerhöhung an ELSA
(2015-12-04)
An der Elektronen-Stretcher-Anlage ELSA am Physikalischen Institut der Universität Bonn werden im Zuge des Sonderforschungsbereichs SFB/TR 16 “Elektromagnetische Anregung subnuklearer Systeme” Experimente zur Untersuchung ...
Investigating Anisotropies in the Local Universe with Type Ia Supernovae from the Nearby Supernova Factory
(2015-12-10)
The dipole anisotropy of the cosmic microwave background temperature is two orders of magnitude larger than its other multipole components, which is attributed to the Doppler shift due to the motion of our Local Group of ...
Automated Source Extraction for the Next Generation of Neutral Hydrogen Surveys
(2015-12-23)
This thesis is a first step to develop the necessary tools to automatically extract and parameterize sources from future HI surveys with ASKAP, WSRT/Apertif, and SKA.
The current approach to large-scale HI surveys, ...
The current approach to large-scale HI surveys, ...