E-Dissertationen: Search
Now showing items 21-30 of 30
Galaxies in Milgromian Dynamics
(2015-02-04)
Since its first formulation in 1983, Milgromian dynamics (also known as modified Newtonian dynamics or MOND) has been very successful in predicting the gravitational potential of galaxies from the distribution of baryons ...
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 ...
Searches for Neutrinos from Supernovae Using Cherenkov In-Ice Detectors
(2017-05-15)
Supernovae mark the violent death of massive stars. They are among the most energetic processes known to exist in the Universe. Neutrinos play crucial roles in supernova processes. Besides the low-energy neutrinos emitted ...
Generating high resolution precipitation conditional on rainfall observations and satellite data
(2017-09-15)
This study is part of the high resolution reanalysis project proposed for Germany and Europe (Bollmeyer et. al., 2014) within the framework of the Hans Ertel Centre for Weather Research (HErZ). The reanalysis for Germany ...
Modeling and Simulation of cracks and fractures with peridynamics in brittle materials
(2017-04-24)
Today, ceramic materials are an essential component of batteries for electric cars. One key feature of this kind of battery is the safety of the ceramic core. Here, the precise approximation of the evolution of damage after ...
Application of Sensitive API-Based Indicators and Numerical Simulation Tools to Advance Hot-Melt Extrusion Process Understanding
(2019-09-11)
This dissertation explored the use of active pharmaceutical ingredients (APIs) as indicator substances as well as numerical process simulation to enhance process understanding of hot-melt extrusion (HME) in the pharmaceutical ......
Molecular gas in hydrodynamical simulations of galaxy formation
(2022-09-26)
Observations of nearby galaxies indicate a strong correlation between their molecular gas content and their star formation rate. This leads to the conclusion that molecular hydrogen – the most abundant molecule in galaxies ...
Propagation of land surface model uncertainties in simulated terrestrial system states
(2018-05-15)
This study demonstrates how vegetation uncertainty propagates in the terrestrial system and how to reduce this uncertainty. Different stomatal conductance equations and different leaf area index input exist for solving ...
Quantum Chemical Calculation of Electron Ionization Mass Spectra
(2018-03-06)
This thesis reports the computation of electron ionization (EI) mass spectra using a method that combines statistical theory and molecular dynamics. Due to the complexity of the unimolecular reaction space, not all competing ......
Model-based formulation of amorphous solid dispersions made by hot-melt extrusion
(2019-08-21)
Regarding hot-melt extrusion in early pharmaceutical formulation and process development, techniques and procedures are needed to simplify the application of hot-melt extrusion (HME) and to decrease the effort in terms of ......