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Now showing items 31-40 of 44
Dissertation
Testing the Impact of Large-scale Digital Support on Students' Paths Toward College Education
(2024-02)
Increasing the share of college graduates can boost productivity, promote social mobility, and improve well-being. However, these benefits are often realized when the education system satisfies the demands of the industry. Otherwise, society may face skill shortages. This thesis aims to expand the understanding of how to attract students, particularly minorities, to pursue academic majors linked to the areas facing skill shortages (henceforth, high-rewarding majors). To accomplish this, it examines the impact of ...
Aufsatz
Parameter recommendation for injection molding based on similarity analysis of injection molded parts
(2023)
Injection molding is a widespread manufacturing process for producing complex plastic shapes. The process is controlled by a large number of parameters, which show interactions with each other. Thereby the determination of an optimal operating point during sampling is a resource-consuming and demanding task. The data, which is generated during sampling, is usually not used for subsequent sampling processes. In the context of Industry 4.0, manufacturing companies attempt to optimize production efficiency to save time ...
Aufsatz
Baumwolle als Faserverstärkung
(2023)
Jedes Jahr landen große Mengen Textilen auf Deponien oder in der thermischen Verwertung. Ein Teil dieser Abfälle könnte allerdings auch als Rohstoffe für Verbundwerkstoffe dienen. Baumwollfasern eignen sich etwa als Verstärkungsfasern, die die mechanischen Eigenschaften von biobasierten Kunststoffen steigern. Durch die Nutzung solcher Abfallströme können in Zukunft kostengünstig und biobasiert Materialien verstärkt werden.
Dissertation
Analysis of agricultural landscape transformation and cropping system diversification in southern Myanmar
(2023)
Myanmar's forests are rich in biodiversity and have significant potential for carbon reduction. Kyunsu Township in southern Myanmar is still covered by biodiverse tropical evergreen rainforests on the highlands and mangroves on the coastline, conserving carbon stocks. However, the expansion of croplands into these forests to meet the growing demand for food and crop income is a major driver of deforestation and loss of carbon sinks. Thus, balancing agricultural land use and natural resource conservation is vital for ...
Dissertation
Management factors influencing cow milk quality and safety in the Indian megacity of Bengaluru
(2023)
Ensuring animal welfare is a critical priority for livestock farmers in the face of urbanization. Rapid urban growth increases the demand for animal products but decreases availability of arable land around cities with negative implications for animal feed production. In urbanizing regions, livestock keepers resort to common pool resources for animal nutrition. Yet, the repercussions of urbanization on the quality of common pool feed resources, animal health, production and product safety, remain unstudied. Additionally, ...
Dissertation
In the Face of Adversity – Conceptual and Empirical Studies on Team and Organizational Resilience
(2024)
In this cumulative dissertation, the resilience of organizational actors is explored through four independent essays. The focus is on investigating why certain organizations and teams are better equipped to handle adversities than others. At the outset of the project, a comprehensive literature review on current research in the field of organizational resilience was conducted. This review enabled the authors to identify the so-called "Building Blocks" of organizational resilience, which provide essential theoretical ...
Dissertation
A critical assessment of opportunities and challenges from Blockchain adoption in supply chain management
(2024)
This dissertation explores the role of blockchain technology within the domain of supply chain management. The research navigates the promising and rapidly evolving landscape of blockchain technology, marked by ongoing challenges and supply chain developments. The study comprises four distinct yet interlinked examinations, each focusing on specific aspects of blockchain application in supply chain management, encompassing traceability, transaction costs, digital freight information, and the inherent tensions in ...
Aufsatz
UV Surface Treatment of Polycarbonate for Adhesion Improvement to Liquid Silicone Rubber (LSR)
(2018)
The adhesion of self-adhesive liquid silicone rubbers to thermoplasts is only possible for a few selected material combinations without a surface pretreatment. A UV pretreatment is effective for polycarbonate and short irradiation periods are sufficient. To clarify the required irradiation conditions that result in an improvement of adhesion, the varying irradiation conditions were assessed. FTIR-ATR spectroscopy was used for surface analysis to characterize the change in the polymer surface.
Aufsatz
Textile Waste Becomes Plastic Composites
(2023-09)
Every year, large quantities of textiles end up in landfills or in thermal recycling. However, some of this waste could also serve as raw materials for composite materials. Left-over cotton fibers of the textile industry, for example, are suitable as reinforcing fibers that enhance the mechanical properties of bio-based plastics. By using such waste streams, materials can be reinforced in a cost-effective and bio-based way in the future.