Now showing items 1-10 of 767
Neuartiges Herstellungsverfahren für Direkt-Methanol-Brennstoffzellen (DMFC) durch definierte Schichtstrukturen
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 ...
Synthese strukturierter Hybridnanopartikel und neuartiger filmbildender Polymerdispersionen via Miniemulsionsprozess
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
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
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
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
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
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
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 ...
Elektrolytalterung in Lithium-Ionen-Batterien
(Universität Ulm, 2016-12-06)
This work focuses on the investigations of electrolyte aging, aiming at monitoring and assessing of electrolyte side reactions in lithium ion cells by means of electrochemical tests and gas chromatography analysis. Therefore ...
Measurement of reduced dipole matrix elements in 40Ca+ and construction of a scalable light-ion interface
(Universität Ulm, 2017-01-10)
In the first part of this thesis, a method for determining transition dipole matrix elements is introduced. It combines measuring absorptive and dispersive atom-light interactions off-resonant to the transition in question ...