OPUS Publikationsserver der Hochschule Rhein-Waal
Not a member yet
1076 research outputs found
Sort by
11/2025 Dritte Änderungssatzung zur Prüfungsordnung für den Bachelorstudiengang Biomaterials Science an der Hochschule Rhein-Waal vom 10.03.2025
No full textDevelopment of a Key Performance Indicator Based Method for the Evaluation of Scan Strategies
No full textIn the Laser powder bed fusion of metal, the laser beam melts and fuse the powder material to produce the part layer by layer. The scan strategy, which defines the pattern in which the laser moves on the powder bed, affects the mechanical properties, residual stress and quality of the parts. There are many scanning strategies and it is difficult to select the appropriate scanning strategy based on the required quality of the parts. In this thesis, key performance indicators related to scanning strategy are developed, based upon the literature, which can influence the quality of the parts like high density and low surface roughness. The developed KPI is used to evaluate the scanning strategy of printed parts and their results on surface roughness and density. The developed KPIs are integrated into custom software to collect the data for evaluation of scanning strategy. The correlation analysis is also performed to understand the relation between developed KPI and quality of the parts (surface roughness and density). The results shows that developed method can be used for evaluation of the scanning strategy but it needs to be further improved to get more accurate results
Evaluierung eines Onboarding-Konzepts im Rettungsdienst mit Handlungskonzeptempfehlung
No full textDer Rettungsdienst in Deutschland steht angesichts steigender Einsatzzahlen, des demographischen Wandels und veränderter Erwartungen an Arbeitgeber:innen vor der zunehmenden Herausforderung ausreichend Fachkräfte zu gewinnen und zu halten. Vor diesem Hintergrund gewinnt Personalmarketing zunehmend an Bedeutung. Der Erstkontakt im Rahmen des Onboardings ist ein entscheidender Faktor, um Integration, Zufriedenheit und langfristige Mitarbeiterbindung zu sichern.
Im Rahmen dieser Bachelorarbeit wurde beim Deutschen Roten Kreuz - Kreisverband Neuss e.V. (DRK-Neuss), ein neues Onboarding-Konzept für angehende Rettungssanitäter:innen entwickelt und im Ausbildungszeitraum August bis September 2024 mit 17 neuen Mitarbeitenden erprobt.
Ziel war es, das Konzept mithilfe qualitativer Interviews nach Mayring zu evaluieren und Handlungsempfehlungen für eine systematische Einarbeitung im Rettungsdienst abzuleiten.
Die Ergebnisse zeigen, dass insbesondere fehlende Standardisierung, inkonsistente Kommunikation und uneinheitliche Betreuung Schwächen im bisherigen Prozess darstellen. Gleichzeitig wurden positive Ansätze wie die Einführung eines Begrüßungstages und die individuelle Betreuung hervorgehoben. Die Arbeit leitet konkrete Empfehlungen ab, u. a. zur Einführung eines Paten-Systems, strukturierte Checklisten sowie klare Verantwortlichkeiten im Einarbeitungsprozess.
Ein durchdachtes Onboarding ist essenziell, um neue Mitarbeitende effektiv einzugliedern und den Rettungsdienst des DRK-Neuss zukunftssicher im Personalbereich aufzustellen
Energy-Efficient Design of Filament Spooling Machines for Sustainable 3D Printing Workflows.
No full textThe Thesis encompasses a comprehensive design framework, incorporating detailed calculations for motor selection, tensioning system design, and guide mechanism optimization. The design prioritizes energy efficiency through the implementation of high-efficiency motors, optimized control algorithms, and energy-saving features
Veränderung ist möglich - Kinderarmut in Deutschland und im Kreis Kleve
No full textDie Publikation zum Thema Kinderarmut ist eine Dokumentation einer Vortragsreihe im Rahmen der Mittwochsakademie der Fakultät Gesellschaft & Ökonomie der Hochschule Rhein-Waal. In den Beiträgen werden die Konstanz und die Regionalität von Kinderarmut thematisiert sowie Lösungsansätze dargestellt, die sowohl individuell als auch strukturell Sinn machen. Die Beiträge repräsentieren Perspektiven auf Kinderarmut aus Theorie und Praxis. Die Ziele dieser Publikation sind die Bereitstellung von Wissen und Anregungen für umsetzbare Handlungen
Development of a Web-Based Tool for Estimating Lifecycle CO₂ Emissions of Electric vs. Diesel Vehicles in Germany
No full textDue to rapid technological development, the transport sector has emerged as one of the most difficult areas to reduce decarbonization, balancing its high global greenhouse gas emissions. In Germany, the shift from internal combustion engine vehicles (ICEVs) to electric vehicles (EVs) has become a key focus of national and EU climate policies. Nevertheless, the transition to EVs is associated with a multitude of factors that need to be considered, including emissions from manufacturing, the energy used during operations, and post-operational treatment.
This thesis focuses on the design, development, and refinement of a web-based CO₂ Lifecycle Emission Calculation tool that compares cradle-to-grave emissions of EVs and diesel ICEVs based on different driving scenarios in Germany. It is based on Life Cycle Assessment (LCA) Methodology as indicated in ISO 14040/14044. With the tool, the manufacturing, operational, and end-of-life emissions are estimated based on validated datasets from peer-reviewed literature and authoritative bodies (IPCC, IEA, UBA). The tool’s modular structure, which was developed in Python with the Streamlit framework, also allows for other languages to be added, selection of the region’s grid mix, scenario comparisons, and results visualization in multi-level dashboards.
Findings of the literature review show that the tool is accurate for both types of vehicles as the known lifecycle emissions ranges for both types are captured. Carbon payback periods for EVs ranged from less than three years to over eight years depending on the grid context, from renewable-rich to coal-intensive. Sensitivity analysis demonstrates that both grid CO₂ intensity and annual mileage hold the greatest influence over lifecycle results.
This research contributes to sustainability as it fills the void that exists between academic LCA models and consumer-facing applications with a transparent, reproducible, and user-configurable decision-support tool. Improvements can be made by incorporating real-time grid emission data, expanding the vehicle datasets, and including additional CO₂ environmental impact categories
The Motivation behind the International Mobility of German University Graduates and Students: A focus on Economic Perceptions and Aspirations for Cultural and Professional Growth
No full textThis thesis examines the motivations behind the international mobility of German university students and graduates focusing on the role of economic conditions, personal motives, the labor market and perceived career opportunities. It evaluates how the assessment of these aspects influences the willingness to pursue a life and career abroad through a review of existing literature and an online survey conducted by the author. The theoretical
background draws on Push-Pull Theory to present migration motives, Neoclassical Economics and the New Economics of Labor Migration to highlight economic reasons and the evaluation of cost and benefits, and Expectancy-Value Theory and Self-Determination Theory to examine the connection of expectations and intrinsic motivations and values related to migration intentions. The data of the survey, conducted among German university students and graduates shows that the economic assessment is not a main motivator for a life abroad but a mix of socioeconomic factors can increase the willingness to go abroad. The study highlights the importance of personal reasons, especially personal growth and cultural experience as it increases the willingness among educated Germans to migrate. Professional growth particularly, if evaluated as better abroad as well as a bad assessment of the German labor market increase the willingness for international mobility. The thesis contributes to a better understanding on the dynamics behind the international mobility intentions among highly skilled individuals in Germany
18/2025 Prüfungsordnung für den Masterstudiengang Information Engineering and Computer Science der Fakultät Kommunikation und Umwelt an der Hochschule Rhein-Waal vom 14.08.2025
No full textAPI Driven Form Rendering
No full textThis master’s thesis investigates the challenges and opportunities associated with dynamic form rendering in user interfaces, specifically in the context of Galeria Karstadt Kaufhof (GKK), a key player in the German retail sector. Collaborating with CODUCT Solutions GmbH, this research aims to enhance GKK’s operational efficiency and user experience in their digital transformation journey, focusing on Project Baldeney, a cloud-native platform that automates content management workflows.
The thesis begins by outlining the limitations of traditional, static methods of form rendering, highlighting the implications for development time and error frequency. It identifies the fragmentation in the existing API-driven architectures as a critical issue affecting system reliability and user experience. Against this backdrop, the work proposes a unified, API-driven framework to dynamically render forms for many user actions, such as data input and transactions.
The research takes a deep dive into existing systems—particularly Informatica’s Product Information Management (PIM) software and the new software in development Article Workbench to identify user experience issues, inefficiencies, and the complexities involved.
Through this examination, it offers a targeted solution to integrate various components of form management, like building, parsing, validation, and rendering, into a cohesive system.
The thesis aims to contribute to software development and user experience design substantially, by targeting improved development efficiency, reduced errors, and enhanced system reliability. By achieving these objectives, the research aspires to furnish GKK with
a robust solution for dynamic form rendering, thereby enhancing both user satisfaction and system performance in the fast-evolving digital landscape
Biological and Synthetic Surfactants Increase Class I Integron Prevalence in Ex-Situ Biofilms
No full textAbstract: The role of biocides in the spread of antimicrobial resistance (AMR) has been ad-dressed but only few studies focus on the impact of surfactants on microbial diversity and AMR, although they are common constituents of cleaners, disinfectants and personal care products and are thus released into the environment in large quantities. In this study, we used an ex situ biofilm model to examine the development of four biofilms exposed to surfactants and analyzed the biofilms for their prevalence of class I integrons (intI1). We furthermore de-termined the bacterial community composition by high-resolution melt analysis and 16S ri-bosomal DNA RNA (16S rRNA) gene sequencing. Depending on the initial intrinsic prevalence of intI1 in the respective ex situ biofilm, Benzalkonium Chloride, Alkylbenzene Sulfonate and Cocamidopropyl Betaine increased intI1 prevalence by an average of up to six fold. For surfac-tants, such as Fatty Alcohol Ethoxylate and the biosurfactants Sophorolipide and Rhamnoli-pide, the mean increase in intI1 prevalence did not exceed two fold. Across all surfactants the increase of intI1 was accompanied by a shift in bacterial community composition. Especially Benzalkonium Chloride, Cocamidopropyl Betaine and Alkylbenzene Sulfonate changed the communities, while Fatty Alcohol Ethoxylate, Sophorolipide and Rhamnolipide had a lower effect on the bacterial biofilm composition