Browsing Fakultät für Physik (inkl. GAUSS) by Referee "Lauterborn, Werner Prof. Dr."
Now showing items 1-20 of 34
-
Untersuchung von akustischen Strömungen im kHz- und GHz-Bereich
(2014-07-14)Launching ultrasound into a fluid can lead to a steady streaming due to nonlinearity and damping. These streaming which is caused by a momentum transfer from the soundwave to the liquid is called acoustic streaming. This ... -
Charakterisierung von Kavitationsblasenpopulationen
(2011-06-22)Acoustic cavitation denotes the nucleation and dynamics of bubbles in liquids under insonication. It is found that bubbles in an acoustic cavitation field do not form a homogeneous group, ... -
Modellierung dynamischer Prozesse mit radialen Basisfunktionen
(2010-12-03)The thesis deals with modeling of nonlinear dynamical systems from measured time series corresponding to a few different values of the system parameters and the dependence of the dynamics ... -
Experimental investigation of shock wave - bubble interaction
(2010-06-02)The dynamics of laser-generated single cavitation bubbles exposed to lithotripter shock waves is investigated experimentally. The effects of shock impact on the fast bubble dynamics are ... -
Spektroskopische Erfassung der Gastemperatur im Brennraum von Ottomotoren
(2010-03-26)It is necessary to know the temperature of the fuel-air-mixture within combustion chambers in oder to develop new engine systems or to optimize existing combustion processes. In this work ... -
Markierungsfreie Proteinanalytik mit oberflächenverstärkter Ramanspektroskopie
(2009-12-15)The determination of biological functions of proteins in metabolism is an important discipline in the field of life sciences. The search for marker proteins, correlated directly to pathological ... -
Mathematical Description of Differential Hebbian Plasticity and its Relation to Reinforcement Learning
(2009-11-18)The human brain consists of more than a billion nerve cells, the neurons, each having several thousand connections, the synapses. These connections are not fixed but change all the time. In order to describe synaptic ... -
Dielektrische Wellenleitergitter in Resonanz
(2009-06-08)The combination of a planar waveguide and a one-dimensional diffraction grating allows to couple polarized monochromatic light under a given incident angle into and totally out of the ... -
Controlled delamination of metal films by hydrogen loading
(2009-01-28)In this work we quantitatively determine the adhesion energy between metal films and their substrates. Therefore a new controlled buckling technique is established, applying the strong ... -
Ultraschallabsorptionsspektroskopie zur Untersuchung schneller molekularer Prozesse in Alkylglykosid-Lösungen
(2008-08-06)Alkylglycosides are molecules consisting of a hydrophobic alkyl chain and a hydrophilic head group, a glycoside. Due to this ambivalent structure of the molecules, above a specific concentration ... -
Entwicklung optischer Feldmessverfahren zur Charakterisierung mikrofluidischer Mischungsvorgänge
(2008-05-09)The two dimensional Molecular Tagging Velocimetry (2D-MTV) is used to measure velocity fields of the flow in a micro mixer. Instead of commonly used micro particles an optical tagging of the flow is performed by using ... -
Critical Behavior and Crossover Effects in the Properties of Binary and Ternary Mixtures and Verification of the Dynamic Scaling Conception
(2008-03-18)Ultrasonic attenuation spectra in the frequency range between 180 kHz and 500 MHz, dynamic light scattering and shear viscosity measurements of a variety of liquids exhibiting a demixing point have been measured are ... -
AdS/CFT Holography of the O(N)-symmetric $\phi^4$ Vector Model
(2008-01-10)We study the AdS/CFT correspondence at the example of the renormalization group IR and UV fixpoint theories of a Euclidean O(N)-symmetric vector field theory with $(\underline \phi^2)^2$ interaction in 2 dimensions. These ... -
Wasserstoffabsorption in epitaktischen Niobschichten: eine STM-Studie
(2007-02-19)In this work the phase transition of the system Niobium Hydrogen in thin films was investigated. The epitaxial Niobium films were fabricated using ion sputtering on sapphire substrates. The ... -
Transient integral boundary layer method to simulate entrance flow conditions in one-dimensional arterial blood flow
(2006-10-20)Motivation: The pressure drop -- flow relations in myocardial bridges and the assessment of vascular heart disease via fractional flow reserve (FFR) have motivated much research during the ... -
Partikelmodellierung der Strukturbildung akustischer Kavitationsblasen in Wechselwirkung mit dem Schalldruckfeld
(2006-10-10)When a strong acoustic field is coupled into a liquid, it ruptures and bubbles emerge (acoustic cavitation). The acoustic cavitation bubbles show volume oscillations as well as a translative ... -
A waveguide-based lens-less x-ray microscope
(2006-09-05)A lot of effort is currently invested to realize phase contrast imaging with hard x-rays. For specimen consisting of light elements, e.g. biological samples, the induced phase shift of the ... -
Experimental study of lipid membranes: lipid domain formation and peptide aggregation.
(2006-06-22)In the presented work we have attemptted to improve our understanding of the factors which lead to the formation of lipid membrane spatial heterogeneities, caused by mixtures of different lipids and/or transmembrane peptides. ... -
The Dependence of the Evolution of Early-Type Galaxies on their Environment
(2006-06-13)This thesis describes the analysis of a data set of 121 elliptical and lenticular (S0) galaxies, located in different environments and at distances corresponding to look-back times between ... -
Hard X-ray Waveguide Optics
(2005-11-18)The thesis is about the preparation of intense hard X-ray nanobeams focusing on the use of X-ray waveguides in resonant beam coupling and front coupling geometry.