E-Dissertationen: Search
Now showing items 131-140 of 215
Characterization of soil water content variability at the catchment scale using sensor network and stochastic modelling
(2015-07-24)
Wireless sensor network technology has recently been used for high spatial and temporal resolution soil water content measurements to facilitate better understanding of hydrological processes in catchment scale. Its ......
Hilbert transforms and maximal operators along planar vector fields
(2015-07-16)
In harmonic analysis, there is a conjecture (attributed to Zygmund) stating that the directional maximal operator along a Lipschitz planar vector field is weakly bounded on L^2. In this thesis, we present some recent ...
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 ...
Elektrochemische Darstellung von Tellurpolykationen
(2015-05-27)
Durch die bisherigen Synthesemethoden für Tellurpolykationsalze sind die möglichen Gegenionen bisher beschränkt auf Halogenidometallate, Halogenidooxidometallate und Oxidoanionen. In dieser Arbeit sollten durch Elektrolyse ...
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 ...
Garnet Systematics of Subducted Continental Margins
(2015-08-05)
Four case studies were performed on former continental margins and on a continental fragment inside an ophiolitic unit. The studies include Lu-Hf garnet dating, and garnet characterization by its chemical zoning. Lu zoning ...
Schnelle Detektion luftgetragener chemischer Kampfstoffe mittels TD-GC-MS
(2015-07-03)
Die Kopplung der Thermodesorption mit der Gaschromatographie ist eine etablierte Technik zur Messung von flüchtigen Komponenten in der Luft. Mit der Verwendung zweier abwechselnd betriebener Kühlfallen ist es möglich, die ...
Starburst clusters in the Galactic center
(2015-07-07)
The central region of the Galaxy is the most active site of star formation in the Milky Way, where massive stars have formed very recently and are still forming today. The rich population of massive stars in the Galactic ......
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 ...
Human Motion Analysis for Efficient Action Recognition
(2015-09-25)
Automatic understanding of human actions is at the core of several application domains, such as content-based indexing, human-computer interaction, surveillance, and sports video analysis. The recent advances in digital ...