Search
Now showing items 1-10 of 3939
Neuartiges Herstellungsverfahren für Direkt-Methanol-Brennstoffzellen (DMFC) durch definierte Schichtstrukturen
Dissertation
A novel method to prepare membrane electrode assemblies (MEA) for direct methanol fuel cells (DMFC) by a layer-upon-layer fabrication onto a porous substrate is presented. The novel preparation technique is based on a ...
Influence of the chain microstructure on the properties of metallocene-based thermoplastic elastic polyolefines
Habilitationsschrift
Polymeric materials are unmatched in the diversity of their properties, such as flexibility, stiffness or mechanical strength. One still open point is to tailor these material properties by controlling the molecular ...
Synthese strukturierter Hybridnanopartikel und neuartiger filmbildender Polymerdispersionen via Miniemulsionsprozess
Dissertation
In the first subpart, a method was developed to produce stable dispersions through polyaddition reaction. Two systems were prepared: System A, comprising of polyaddition between Polyol PPG 2000 and diisocyanates and System ...
Zweikernige Ruthenium(I,I)- und Rhodium(II,II)-Komplexe als Katalysatoren für Lactam-Synthesen durch intramolekulare carbenoide C-H-Insertion von alpha-Diazoacetamiden
Dissertation
Subject of this study were syntheses of diazoacetamides and diazoacetoacetamides which were catalyzed with different ruthenium(I,I)- and rhodium(II,II)-catalysts to form via a carbenoid C-H-insertion beta- and gamma-lactams. ...
Simulation des Gelenkstellungskontrollsystems für Stehen und Laufen durch Modellierung eines Neuronennetzwerkes auf der Basis physiologischer Eigenschaften
Dissertation
Biological systems, especially the vertebrate brain, are very complex and usually possess a large number of nerve cells to produce flexible behavioural patterns. Therefore, model systems with a lower number of nerve cells ...
Der Einfluss eines Muskelsehnenorgans auf modulatorische Projektionsneurone und zentrale Mustergeneratoren im stomatogastrischen Nervensystem des Taschenkrebses
Dissertation
For an appropriate interaction with the environment, animals process sensory information with their nervous system. One well suited model systems for the investigation of neural processing is the stomatogastric nervous ...
Tuning polymeric latex functionality via the miniemulsion technique
Dissertation
We describe in this document new advances in miniemulsion polymerizations. We investigated different po-lymerizations in miniemulsion, namely radical, anionic,and condensation polymerizations, in order to obtain different ...
Diffusion processes in unsaturated porous media studied with Nuclear Magnetic Resonance techniques
Dissertation
Unsaturated porous media form two-phase systems consisting of the liquid and its vapor. Molecular exchange between the two phases defines an effective diffusion coefficient which substantially deviates from the bulk value ...
Inseparability criteria in finite Hilbert spaces
Dissertation
As soon as the concept of entanglement was introduced a controversy about its correct interpretation has originated. Today, more than 70 years later, the problem has not been completely resolved. One of the most important ...
Workflow- und Prozeßsynchronisation mit Interaktionsausdrücken und -graphen
Dissertation
Heutige Workflow-Management-Systeme - egal ob kommerzielle Produkte oder Forschungsprototypen - betrachten einzelne Workflows im wesentlichen als separate, in sich abgeschlossene Prozesse, die unabhängig voneinander ...