Suche
Anzeige der Dokumente 41-50 von 54
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 ...
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 ...
Aufsatz
Enhancing crop-livestock systems: Unveiling the impact of leaf stripping on maize hybrid yield in Sundarbazar-Lamjung, Nepal
(2024-03-12)
In local maize agro-ecosystems in Nepal leaf stripping is, historically, practiced as a source of fodder for livestock. However, its effects on hybrid maize have not been studied. The aim of this study was to determine how defoliation below the cob affects the grain and fodder production of hybrid maize and what value the stripped leaves have as fodder for ruminants. Seven hybrid maize cultivars were evaluated for their response to leaf stripping in a randomized complete block design with three replications in ...
Dissertation
Functional analyses of Dph1•Dph2 in synthesis of diphthamide, a clinically relevant modification on eEF2
(2024)
Diphthamide is a unique post-translational modification of a conserved histidine on the eukaryotic translation elongation factor 2 (eEF2). During translation elongation, eEF2 induces translocation of codon-anticodon duplexes across the ribosomal decoding center. Diphthamide is involved in fine-tuning of this process by stabilizing the codon-anticodon duplex and maintaining reading frame accuracy. Initially, diphthamide was identified as the target for diphtheria toxin, enabling ADP-ribosylation of eEF2 and resulting ...
Dissertation
Professionalisierungsprozesse im Lehr-Lern-Labor Sportpädagogik
(2024-03-13)
Mit der Konzeption und Einrichtung des Lehr-Lern-Labors (LLL) Sportpädagogik verfolgt der Arbeitsbereich Erziehung und Unterricht am IfSS der Universität Kassel die Zielsetzung, unterrichtsrelevante Themen an universitären und schulischen Lernorten einer pädagogischen Begründung, didaktischen Erprobung und gemein-samen Reflexion zu unterziehen. Theoretische Bezugspunkte sind zum einen die professionelle Handlungskompetenz und zum anderen die Unterrichtsqualität. Pädagogisches Handeln sollte sich auf wissenschaftliche ...
Dissertation
Evaluation of Bitumen-Aggregate Adhesion Bond Based on Surface Free Energy and Comparison with Moisture Sensitivity and Asphalt Performance Tests
(2024)
The adhesion bond between aggregate particles and bitumen plays a crucial role in ensuring the durability of asphalt pavement, and it is influenced by factors such as bitumen-aggregate compatibility, moisture exposure, other environmental conditions, and traffic loads. Failure of the adhesion bond results in the detachment of bitumen from the aggregate surface and leads to stripping in the presence of moisture. This, in turn, leads to the development of macro cracks and disintegration within the asphalt pavement, ...
Dissertation
Consumers’ Disposal Behavior at the Base of the Pyramid
(2024)
This dissertation explores the sources of sustainable waste management by examining the disposal behavior of low-income consumers at the base of the pyramid (BoP). Consumer product and package disposal behavior varies internationally and requires a selective strategy for waste management at the BoP. Uniform approaches to waste management have proven inadequate, as BoP markets are complex and heterogeneous and thus need to be considered individually.
Therefore, this dissertation focuses on identifying factors influence ...