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Dissertation
Identity Formation, Economic Development, and Local Activism: A Postcolonial Approach of Heritage Preservation in Taipei City, Taiwan
(2021)
This study adopts a postcolonial approach to scrutinise the policies and practices of heritage preservation in Taipei City, Taiwan. Postcolonial theory provides an analytical framework that destabilises the dominating discourses of urban development from a subaltern perspective. It interrogates how ordinary people have the capacity to appropriate urban spaces through the practices of everyday life, thereby claiming their rights to the living environment. In this sense, I argue that urban heritage is a social construction. ...
Dissertation
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What Do Coaches Actually Do? A Context-Sensitive Approach to Workplace Coaching
(2021)
Vor dem Hintergrund einer noch wenig fortgeschrittenen Forschung zu Wirkfaktoren von Coaching, zielt diese Dissertation darauf ab, die in neueren Forschungsarbeiten skizzierten Forschungslücken hinsichtlich Coach-Verhalten und Kontextfaktoren zu schließen. Um den Blickwinkel auf relevante Kontextfaktoren zu erweitern, liegt der Fokus auf dem Verhalten von Coaches in zwei verschiedenen Arten von Kontexten: dem Beginn von Coaching-Prozessen (d.h. der Eingangsdiagnostik) und Coaching für Gründer*innen.
Diese Dissertation ...
Dissertation
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Synthese von Ester- und Etherlipiden durch die GPAT/AGPAT-Proteinfamilie und Lipin in Dictyostelium
(2021-05-12)
The synthesis of glycerolipids starts with the acylation of lipid backbones. Two structurally different glycerolipids emerge in the cell: ether-lipids and ester-lipids. In the case of ether-lipids the first fatty acid is substituted with a fatty alcohol inside the peroxisome. By the characterization of the protein FARAT in this thesis, a key enzyme in etherlipid-synthesis was identified for D. discoideum. FARAT shows a peroxisomal localization and is in principle able to do two jobs. Firstly, it initiates the peroxisomal ...
Aufsatz
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On the Impact of Build Envelope Sizes on E-PBF Processed Pure Iron
(2021-11-17)
In additive manufacturing, the thermal history of a part determines its final microstructural and mechanical properties. The factors leading to a specific temperature profile are diverse. For the integrity of a parameter setting established, periphery variations must also be considered. In the present study, iron was processed by electron beam powder bed fusion. Parts realized by two process runs featuring different build plate sizes were analyzed. It is shown that the process temperature differs significantly, ...
Aufsatz
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On the Microstructural and Cyclic Mechanical Properties of Pure Iron Processed by Electron Beam Melting
(2021-03-10)
Additive manufacturing (AM) processes such as electron beam melting (EBM) are characterized by unprecedented design freedom. Topology optimization and design of the microstructure of metallic materials are enabled by rapid progress in this field. The latter is of highest importance as many applications demand appropriate mechanical as well as functional material properties. For instance, biodegradable implants have to meet mechanical properties of human bone and at the same time guarantee adequate cytocompatibility ...
Aufsatz
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Nutrient and oil profile of Escamol, an edible larva of ants (Liometopum apiculatum Mayr)
(2021-05-25)
The objective of this study was to evaluate proximal chemical analysis, oil and fatty acids in escamol dehydrated and butter-fried that are commercially available in Mexico. In order to measure the escamol and oil quality, a chemical analysis were performed. The identification fatty acids was by refractive index. The proximal chemical analysis results in escamol fresh and deshydrated indicated that moisture (56.00-1.89 %), protein (15.30-34.78 %), lipids (20.05-45.57 %), ash (1.91-4.35 %) and carbohydrates (6.73-13.41 ...
Aufsatz
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CuCrZr processed by laser powder bed fusion — Processability and influence of heat treatment on electrical conductivity, microstructure and mechanical properties
(2021-06-16)
CuCrZr parts were fabricated by laser beam powder bed fusion (LB-PBF) technique and subjected to different heat treatments. As a result, four different conditions were considered for further investigations, that is, the as-built condition, conditions of maximum hardness (MH) and maximum electrical conductivity (MC), and a condition representing a compromise between hardness and conductivity (H&C). Microstructural evolution and performance under monotonic and cyclic loading were studied. Fracture surfaces revealed ...
Aufsatz
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Trust and the clean food imaginaries: an analysis of a short food supply chain from Romania
(2021-05-25)
As concerns about food safety and environmental issues gain more attention in the public eye, organic labels are growing in popularity, being presented as the solution for a more sustainable and conscious food system. Yet, organic certificates did not manage to actively change the food system but merely created a niche to be exploited, thus many of the environmental-friendly practices being co-opted by corporations without addressing the larger issues of concern. This paper looks at how small producers, who are ...
Aufsatz
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Thermal Stability of Residual Stresses in Differently Deep Rolled Surface Layers of Steel SAE 1045
(2021-05-07)
The stability of compressive residual stresses generated by deep rolling plays a decisive role on the fatigue behavior of specimens and components, respectively. In this regard, deep rolling at elevated temperature has proven to be very effective in stabilizing residual stresses when fatigue analysis is conducted at ambient temperature. However, since residual stresses can be affected not only by plastic deformation but also when thermal energy is provided, it is necessary to analyze the influence of temperature and ...
Dissertation
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A Self-Organising Multi-Agent Knowledge Base
(2021-12)
Digitale Städte sind zunehmend auf IT- und Kommunikationsinfrastruktur angewiesen. Sie können als große verteilte Systeme betrachtet werden, die aus heterogenen und autonomen Teilnehmern bestehen. Besonders in Notfall- und Krisensituationen muss kritisches Wissen, beispielsweise über verletzte Personen oder beschädigte Infrastruktur, zuverlässig auch unter eingeschränkter Kommunikation erreichbar sein. In einer solchen Umgebung würde eine zentrale Verwaltung des kritischen Wissens einen Engpass verursachen. Daher ...