The Faculty of Mathematics and Natural Sciences: Search
Now showing items 1-10 of 41
Modeling ripple formation
(2004)
The aim of this thesis was to approach the problem of ripple formation by a model which describes the phenomenon on a macroscopic scale and does not incorporate the detailed dynamics of the fluid flow field. We developed ...
Untersuchung zur Kinetik der Coesit - Quarz Umwandlung unter in-situ Bedingungen mittels Synchrotronstrahlung sowie Analyse der Mikrostrukturen im Transformationsbereich mittels TEM
(2003)
Synthetischer Coesit wurde in eine Hexaeder- Hochdruck-, Hochtemperaturapparatur verbracht und die rekonstruktive Transformation Coesit-Quarz durchgeführt, um die retrograde Metamorphosepfade natürlicher Gesteine besser ...
Characterization of metallic nanoparticles by high-resolution X-ray absorption and X-ray emission spectroscopy
(2012-03-16)
In almost all areas of technology, metallic nanoparticles are of interest due to their special thermal, electronic, magnetic and optical properties.
Their special properties are mainly due to their small size which ...
Their special properties are mainly due to their small size which ...
Multi-stage Micropattern Gaseous Detectors for the ALICE TPC Upgrade - Studying and Modelling Charge Transfer and Energy Resolution
(2020-06-23)
With the upgrade of the LHC (Large Hadron Collider) at CERN, the interaction rate of ALICE
(A Large Ion Collider Experiment) will be increased up to 50 kHz for Pb-Pb collisions.
Thus the gated and rate-limited readout ...
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 ...
Symbolische Transferentropie: Charakterisierung gerichteter Interaktionen in nichtlinearen dynamischen Netzwerken
(2011-01-11)
Im Rahmen der vorliegenden Arbeit wird untersucht, inwiefern eine Charakterisierung der Kopplungsrichtung zwischen komplexen dynamischen Systemen mit einer auf Konzepten der nichtlinearen Dynamik, der Informationstheorie ...
Development of high speed integrated circuit for very high resolution timing measurements
(2009-12-07)
A multi-channel high-precision low-power time-to-digital converter application specific integrated circuit for high energy physics applications has been designed and implemented in a 130 nm CMOS process. To reach a target ...
Pentacen-Feldeffekttransistoren auf Basis HF-Magnetron gesputterter Aluminiumoxid-Schichten: Präparation, Struktur und elektrische Eigenschaften
(2007)
Im Rahmen der vorliegenden Arbeit wurden organische Feldeffekttransistoren (OFETs) mit polykristallinem Pentacen (Pc) als aktiven organischen Halbleiter und HF-Magnetron gesputterten Aluminiumoxid (AlOx) als Gate-Isolator ...
System Test and Noise Performance Studies at The ATLAS Pixel Detector
(2007)
The central component of the ATLAS Inner Tracker is the pixel detector. It consists of three barrel layers and three disk-layers in the endcaps in both forward directions. The innermost barrel layer is mounted at a distance ...
Local Gauge Coupling Running in Supersymmetric Gauge Theories on Orbifolds
(2007)
By extending Feynman's path integral calculus to fields which respect orbifold boundary conditions we provide a straightforward and convenient framework for loop calculations on orbifolds. We take advantage of this general ...
