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Buch
Statik und Einflussfunktionen - vom modernen Standpunkt aus
(2023-01)
Einführung in die moderne rechnerbetonte Statik mit Betonung der wichtigen Rolle, die die Einflussfunktionen für die finiten Elemente bilden, mit Programmen zur Berechnung von Scheiben, Platten und ebenen Rahmen nach der Methode der finiten Elemente und Programmen zur Berechnung von Scheiben, Platten und Laplace-Problemen nach der Methode der Randelemente.
Dissertation
Risk Communication during the COVID-19 Pandemic
(2024)
In this PhD project it was aimed to learn about the potential and the challenges of risk communication in systemic risks by conducting applied research during the COVID-19 pandemic. Risk communication plays a crucial role in mitigating these risks by addressing risk beliefs in the population and thereby stimulating behavior change. In the synapsis of this project, however, the prevalence of heterogenous prior risk beliefs in different groups of the population were identified as a major challenge for risk communication ...
Dissertation
Design and Implementation of Novel Optical Fabry-Pérot Arrays for Medical Applications
(2024)
Optical sensing systems find a wide range of applications, especially in the medical field, for intelligent, patient-operated health monitoring and early diagnosis, facilitating immediate responses to warnings. Advances in technology have enabled sensors miniaturization with spectrometers using low-cost Fabry-Pérot filters, allowing integration into mobile phones and wearable devices without compromising their resolution. The challenge in filter fabrication is deforming supporting posts deformation during polymer ...
Aufsatz
High Consistency Silicone Rubber Foams
(2024-04-23)
Silicone elastomers are high-performance plastics. In the extrusion process, only high-consistency silicone rubbers were used. In order to reduce the cost and weight, silicone rubbers can be foamed during processing. In this study, high-consistency silicone rubber is processed with different physical and chemical blowing agents. The resulting reaction kinetics, as well as the mechanical and morphological properties, had been investigated and compared with each other. This showed that the chemical blowing agent ...
Aufsatz
Pathways toward the Use of Non-Destructive Micromagnetic Analysis for Porosity Assessment and Process Parameter Optimization in Additive Manufacturing of 42CrMo4 (AISI 4140)
(2024-02-20)
Laser-based powder bed fusion of metals (PBF-LB/M) is a widely applied additive manufacturing technique. Thus, PBF-LB/M represents a potential candidate for the processing of quenched and tempered (Q&T) steels such as 42CrMo4 (AISI 4140), as these steels are often considered as the material of choice for complex components, e.g., in the toolmaking industry. However, due to the presence of process-induced defects, achieving a high quality of the resulting parts remains challenging in PBF-LB/M. Therefore, an extensive ...
Aufsatz
Modification of self-reinforced composites (SRCs) via film stacking process
(2022-02-25)
This work presents the mechanical behavior of self-reinforced composites (SRCs) manufactured and modified via film stacking. For modification, interleaved films made of polypropylene (PP), a thermoplastic elastomer and a polyolefin engage were combined in different ways to induce the elastic modifier into the matrix material. The content of modifier was also varied in two ways. First, the films were produced out of a single material and second out of a compound. So, the same content of modifier was implemented in two ...
Aufsatz
Investigation of the adhesive strength in a combined compaction and back-injection process to produce back-injected self-reinforced composites (SRCs)
(2022-03-08)
This publication investigates the adhesion between an injection molded component and a self-reinforced composite (SRC) produced in a combined compaction and back-injection process to produce back-injected self-reinforced composites. To study the influence of the process, the parameters barrel temperature, time of injection, and tool temperature were varied. In addition, samples were taken at different positions along the flow path. In light of the orthotropic material behavior of SRCs, investigations were conducted ...
Working paper
To Stay or to Go? Outmigration of Nurses from Ghana. A GPN / UCC Project
(2024-02)
The Global Partnership Network (GPN) is a unique network of 12 universities and 18 civil society groups for research, teaching, and training in all continents around SDG 17 “Global Partnership for Sustainable Development”. The GPN has been functioning since 2020, headquartered in Germany at the University of Kassel and funded by the German Federal Government. It aims to provide policy-relevant research in three areas: development cooperation, global economy, and knowledge production, keeping in mind that international ...
Working paper
To Stay or to Go? Recruitment and Outmigration of Nurses from India. A GPN / JNU Project
(2024-02)
The Global Partnership Network (GPN) is a unique network of 12 universities and 18 civil society groups for research, teaching, and training in all continents around SDG 17 “Global Partnership for Sustainable Development”. The GPN has been functioning since 2020, headquartered in Germany at the University of Kassel and funded by the German Federal Government. It aims to provide policy-relevant research in three areas: development cooperation, global economy, and knowledge production, keeping in mind that international ...
Dissertation
Patterns of Practice - Interdisciplinary Negotiation of Cultural Complexity through Practice-Based Methods in Informatics
(2022)
Following the principle of knowing through making, this thesis discusses development and application of a practice-based methodology for construction of digital artefacts within
cultural contexts. It addresses the epistemological diversity and complexity inhering within interdisciplinary projects, suggesting methodological devices able to navigate the variegated disciplinary landscape present within respective development projects. The conceptual pair complexity/complication acts as theoretical point of reference ...