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Dissertation
Development of Selectively Actuatable Micromirror Arrays and Scalable Lithography Processes for Large-Area Applications as Smart Window
(2023)
This thesis provides an extensive overview on the state-of-the-art daylighting systems for applications in buildings and subsequently addresses the implementation of subfield addressing in micromirror arrays and investigation of a potential scalable lithography process for the large-area fabrication, both have been identified as the research gap in achieving the envisioned application as smart window. The work is conducted in continuation of the optimized fabrication process and the successful fabrication of a lab ...
Dissertation
Exploring risk and sustainability performance in base of the pyramid supply chains
(2022-07)
In the contemporary business world, the real competition is not among individual businesses but rather between supply chains. Companies, which are part of efficient supply chains, are considered destined to outperform their competitors being part of inefficient supply chains. Moreover, performance has been a matter of concern for researchers for decades and is the primary aim of any firm’s existence. The definition of performance includes the performance measurement (PM) concept and further supports the notion that ...
Dissertation
Ash dieback : the pathogen Hymenoscyphus fraxineus and other fungi associated with stem collar necroses of common ash
(2024)
The ascomycete Hymenoscyphus fraxineus has caused devastating damage to the common ash (Fraxinus excelsior) in Europe in recent decades, resulting in considerable economic and ecological losses. The ash dieback pathogen is native to Asia, where it lives mainly as a saprobiont in peaceful coexistence with the Asian ash species Fraxinus mandshurica. Symptoms of the fungus in common ash include wilting of the leaves with subsequent dieback of shoots, twigs and branches, as well as damage to the stem base. These stem ...
Dissertation
Spekulatives Kapital und chinesische Auslandsübernahmen
(2024)
Warum nahmen die Unternehmensübernahmen chinesischer Investoren in Deutschland und der EU ab 2011 zu und stiegen zwischen 2015 und 2017 besonders stark an? Diese Studie beantwortete diese Frage, indem sie empirisch die folgenden drei Themen untersuchte: die chinesischen Investoren, die zwischen 2011 und 2019 deutsche Unternehmen übernommen haben, die Entwicklung des chinesischen Finanzsektors zwischen 2009 und 2017 und die M&A-freundliche regulatorische Umgebung während der Amtszeit des 18. Zentralkomitees der ...
Dissertation
Job-shop scheduling with flexible energy prices and time windows: A branch-and-price-and-cut approach
(2024)
Energy-aware scheduling is crucial in the current economy and green production initiatives. However, with the rise of renewable energy sources, power production is subject to uncertain weather conditions. Hence, within a network, some balancing group managers must maintain a balance between production and demand, which requires precise energy orders for specific times. Therefore, those managers must prioritize accurate energy orders to manage this complex problem.
The primary aim of this thesis is to manage one ...
Dissertation
Die extreme Rechte im langen Sommer der Migration
(2024)
Angesichts der Wahl- und Mobilisierungserfolge der extremen Rechten stellt sich die Frage, ob es der extremen Rechten gelungen ist, die Kräfteverhältnisse in Deutschland grundlegend zu verschieben. Da die Untersuchung von Kräfteverhältnissen notwendig mit dem Problem der Überkomplexität konfrontiert ist, nutzt diese Dissertation den Begriff des Hegemonieprojekts, der es erlaubt, die sonst unzähligen in das Kräfteverhältnis einfließenden Handlungen anhand ihrer strategischen Richtung zu bündeln. Der Frage nach dem ...
Dissertation
Object Detection for Automotive Radar Perception
(2024)
Automated vehicles are among the biggest trends in the automotive industry. The desired level of automation slowly progresses from advanced driver assistance system functions to fully autonomous driving. Excellent environmental perception is a critical requirement in this development. This thesis focuses on solutions to the challenges that come with the utilization of automotive radar systems for road user recognition. Therefore, several machine learning techniques are applied and compared to detect and classify ...
Dissertation
Einfluss verschiedener Lipidstoffwechselwege auf die Entwicklung von Dictyostelium discoideum
(2024)
In den meisten Organismen spielen Lipid Droplets (LDs) eine positive Rolle beim Überleben einiger Stress-Bedingungen wie Nahrungsmangel. Axenisch wachsende D. discoideum haben keine LDs, sie sind „lean cells“, aber nach der Zugabe von 200 μM Palmitinsäure (PA) zum Kulturmedium synthetisieren die Zellen nach 3 h hunderte von LDs und werden zu „fat cells“. Überraschenderweise sterben die fat cells während der Nahrungsmangel-induzierten Entwicklung ab und bilden daher kaum Sporen. Neben dem Hauptneutrallipid Triacylglycerol ...
Dissertation
Diffusion of Material Flow Cost Accounting and its Contribution to Sustainable Development
(2022)
This thesis aims to analyze how further take-up of Material Flow Cost Accounting (MFCA) in practice can be encouraged to support sustainable development. To achieve the aim of the thesis, three studies on MFCA are conducted at multiple levels. The first study provides a better understanding of MFCA application at the corporate level in developing countries, which are characterized by rapid structure transformation leading to serious environmental problems. The second study considers the contextual and transformational ...
Dissertation
Assessment of the variation of marbling and intramuscular fat content of beef, and validation of possible factors to increase sensory beef quality
(2021-11)
This thesis focuses on the intramuscular fat content (IMF) or the marbling of beef as main parameters of sensory beef quality. The aim is to identify the high variability of these traits and to verify possible influences such as genetics, age, gender and feeding strategies to increase marbling.
The first part of this research focuses on the variation of quality traits within a genetically homogeneous line of an endangered German beef cattle breed “Rotes Höhenvieh” (RHV). The intramuscular fat content of beef samples ...