Dokumente Fakultät für Physik (inkl. GAUSS) nach Gutachter "Herminghaus, Stephan Prof. Dr."
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Actin Filaments and Bundles in Flow
(2008-08-06)Actin, a protein and major component of the cytoskeleton, is organized in vivo into filaments, bundles, and networks which play an important role in mechanical stability and cellular motility. ... -
Ballistic electron transport in graphene nanodevices and billiards
(2019-10-17)Nanodevices are objects with broad relevance for today's society, which bases its economy, operation, and communication onto digital resources. In ballistic nanodevices, disorder has either negligible or minor impact on ... -
Biological Matter in Microfluidic Environment - from Single Molecules to Self-Assembly
(2006-08-02)The interior as well as the exterior of cells is governed by networks composed of fibrous proteins. The mesh size of these networks is on the order of micrometers and therefore distinguishes ... -
Biophysics of Blood Platelet Contraction
(2013-05-21)This work is part of a project on blood platelet contraction using an innovative double approach to experiments. First, we adapted the experimental technique, traction force microscopy (TFM), to our cellular system, and ... -
Contact Line Dynamics on Heterogeneous Substrates
(2014-04-14)Fluid interfaces in contact with solid substrates play an important role in fields ranging from microfluidics, over oil recovery and inkjet printing to coating processes. Effective models for the static wetting of structured ... -
Dewetting of Polymer Thin Films on Viscoelastic Substrates
(2010-03-03)In the present work, we study the wetting and dewetting phenomena on viscoelastic substrates, which are either planar or topographically structured.The main focus has been given primarily to the ... -
Driven granular gas with van der Waals interaction
(2019-03-26)Granular matter is a collection of solid particles which inelastically collide with each other with possible size range from 1 $\mu$m (like clays) to $1$ km (like some asteroids). Due to the characteristic of dissipation, ... -
Dynamics of soft interfaces in droplet-based microfluidics
(2014-04-30)This doctoral thesis presents the study of di erent dynamic processes occurring at the droplet interface, and the methods implemented for their study. The objective of this work is to unravel what are the important properties ... -
Elasticity and Morphology of Wet Fiber Networks
(2011-12-05)Fibrous materials are very commonplace in current technological applications. The study of their mechanics is an interesting topic that has previously been inspired by applications in the ... -
Friction and diffusive light transport in a granular medium
(2012-03-05)This thesis presents experimental research on the statics and dynamics of granular media. In the first part, it is shown that the surface roughness, and thence the interparticle friction ... -
Geometric structure and mechanical stability of disordered tetrahedra packings
(2013-12-18)In this study, the geometric structure of frictional, disordered tetrahedra packings is analysed in detail via X-ray Computed Tomography. The choice of the granulate is motivated by moving away from the "spherical cow" ... -
Hydrodynamics of granular gases: clustering, universality and importance of subsonic convective waves
(2017-01-16)In this thesis we study a hydrodynamic Ansatz for granular gases. The structure of this thesis is the following. We start with a brief introduction into the kinetic theory of granular gases in Chapter 2 and we introduce ... -
Impact of Complex Network Topology on Synchronization Dynamics
(2012-12-20)Synchrony is one of the most common dynamical states emerging on networks. The speed of convergence towards synchrony provides a fundamental collective time scale for synchronizing systems. Here we study the asymptotic ... -
Length scales in granular matter
(2013-04-24)Jammed packings of granular materials differ from thermal systems normally described by statistical mechanics. In recent years a statistical mechanics of static granular media has emerged by using the volume of the system ... -
Liquid Crystal Microswimmers - from single entities to collective dynamics
(2016-11-15)Recently, artificial self-propelled systems at low Reynolds numbers have gained a lot of attention. The main interest lies in mimicking well-studied systems, e.g. the active Brownian motion of bacteria, or in gaining deeper ... -
Liquid Crystals in Aqueous Ionic Surfactant Solutions: Interfacial Instabilities & Optical Applications
(2014-06-02)This thesis presents the properties and applications of various liquid crystal (LC)-aqueous ionic surfactant systems. It begins with the study of micellar solubilization of different LCs in aqueous ionic micellar solutions. ... -
Manipulation of Monodisperse Emulsions in Microchannels
(2009-02-25)The manipulation of monodisperse gel emulsions confined in a microfluidic channel network has been investigated. Monodisperse gel emulsions were organized by spatial confinement as a function ... -
Manipulation of Wetting Morphologies in Topographically Structured Substrates
(2008-02-11)In the present work, static liquid morphologies confined to linear micron sized surface grooves were studied experimentally and analyzed theoretically. Geometries with increasing complexities, ... -
Nematic Liquid Crystals and Nematic Colloids in Microfluidic Environment
(2013-02-22)The doctoral thesis presented here is one of the first systematic attempts to unravel the wonderful world of liquid crystals within microfluidic confinements, typically channels with dimensions of tens of micrometers. The ... -
Stationary Properties of Driven Granular Gases
(2005-03-18)We study driven granular gases in two dimensions. First we present systems of smooth particles between two vibrating walls. For these intrinsically inhomogeneous systems we measure all ...