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Dissertation
Wie können sich die Freiburger Quartiere generationengerecht weiterentwickeln?
(2016)
Wie können sich Freiburger Quartiere weiterentwickeln und dabei die Wohn- und Lebens-bedürfnisse aller Generationen berücksichtigen? Die vorliegende stadtplanerische Studie befasst sich mit den Chancen und Herausforderungen einer Universitätsstadt, die durch ihr Angebot an Ausbildungsmöglichkeiten in Verbindung mit einer hohen Lebens- und Freizeit-qualität viele junge Menschen anzieht. Gleichzeitig und kaum beachtet, gibt es auch in die-ser Stadt eine Alterung, die es in den vorherigen Generationen in diesem Umfang ...
Aufsatz
Spatio-temporal resolution studies on a highly compact ultrafast electron diffractometer
(2015)
Time-resolved diffraction with femtosecond electron pulses has become a promising technique to directly provide insights into photo induced primary dynamics at the atomic level in molecules and solids. Ultrashort pulse duration as well as extensive spatial coherence are desired, however, space charge effects complicate the bunching of multiple electrons in a single pulse.Weexperimentally investigate the interplay between spatial and temporal aspects of resolution limits in ultrafast electron diffraction (UED) on our ...
Aufsatz
Ordoliberalism Out of Order? The Fragile Constitutionality of Greek Austerity (Part Two)
(2020-06)
This is the second part of a two-part post. The first part, available here, considered the historical background of the concept of constitutional order and its relation to the ordoliberal project. Judicial independence was examined in parallel with central bank independence, with each understood as a means of insulating policy from social and democratic pressures and also as a means of enacting and maintaining fiscal discipline and market-conforming order. It also included some preliminary observations on the relation ...
Verschiedenartige Texte
Ordoliberalism Out of Order? The Fragile Constitutionality of Greek Austerity (Part One)
(2020-05)
The architecture of the European Monetary Union (EMU) has often been understood to be built on a fundamentally ordoliberal framework. [1] The precise characteristics of what constitutes an ordoliberal framework are often not clarified, and they have been widely debated in contemporary scholarship. But a crucial characteristic of ordoliberalism, and one that has received comparatively little attention, concerns the importance of grounding economic policy in a “constitutional order”: ordoliberal political economy insists ...
Verschiedenartige Texte
Greece: Austerity's unexpected allies
(2018-04)
Contrary to pre-electoral proclamations and the recent optimism of the government and its European allies, the situation since 2015 has only gotten worse. Pensions have been cut twice more (with additional cuts promised in future). More than 1 million Greeks have already suffered some form of appropriation due to debt, with another 1.7 million waiting in line - a number that represents only 70% of those indebted to the tax office. One in three face material and social deprivation (Eurostat, 2016), placing Greece third ...
Aufsatz
Parameter identification for constitutive models of innovative textile composite materials using digital image correlation
(2019-11-18)
This contribution focuses on an innovative composite material consisting of textile layers made from continuous wooden fibers embedded in a thermoplastic matrix. A finite element simulation of potential use‐cases is planned to support the development process and to study the suitability of the material in an architectural context. The simulation is based on a constitutive model assuming homogenous orthotropic elastic behavior and will be expanded to include multiscale modeling in future research. The material parameters ...
Aufsatz
Dynamic Tensile Deformation of High Strength Aluminum Alloys Processed Following Novel Thermomechanical Treatment Strategies
(2020-05-14)
Herein, the effects of a very recently introduced novel thermomechanical process route on the microstructural evolution and dynamic tensile deformation behavior of two different precipitation hardenable aluminum alloys, i.e., AA6082 and AA7075, are studied. The investigated materials are hot formed and quenched in differently tempered tools to reveal the influence of cooling rate. Microstructure analysis is conducted to study the influences of different cooling strategies on the microstructure evolution and prevailing ...
Aufsatz
Effect of Compositional Variation Induced by EBM Processing on Deformation Behavior and Phase Stability of Austenitic Cr-Mn-Ni TRIP Steel
(2020-01-24)
Electron beam melting (EBM) is an established powder bed-based additive manufacturing process for the fabrication of complex-shaped metallic components. For metastable austenitic Cr-Mn-Ni TRIP steel, the formation of a homogeneous fine-grained microstructure and outstanding damage tolerance have been reported. However, depending on the process parameters, a certain fraction of Mn evaporates. This can have a significant impact on deformation mechanisms as well as kinetics, as was previously shown for as-cast material. ...
Aufsatz
On the Impact of Texture and Grain Size on the Pseudoelastic Properties of Polycrystalline Fe–Ni–Co–Al–Ti Alloy
(2020-05-08)
The effects of thermomechanical treatments on crystallographic texture and grain size evolution and their impact on the pseudoelastic properties in Fe41–Ni28–Co17–Al11.5–Ti2.5 (at.%) were studied in the present paper. The results show that cold rolling leads to brass-type texture in this alloy, which is typical for low stacking fault energy materials. Thermal treatments up to 1300 °C were conducted and it is shown that the presence of β-phase helps to control grain growth. After the dissolution of the secondary phase ...
Masterarbeit
The Sundarbans in Bangladesh
(2019)
Bangladesh is an agricultural-based country. Agriculture contributes 42.70% (BER) in the labor market through 4 categories namely crops, fisheries, livestock, and forestry. Forestry has the most significant role in renovation of infrastructures and balancing the natural environment. Due to human and natural induced threats, the forest resources are in danger and currently, the percentage of forest in Bangladesh is 13.22 % (BER). The sector is still mistreated on the basis of compared to the other three parts of ...