TY - JOUR T1 - 02/2026 Zweite Änderungssatzung zur Prüfungsordnung für den Masterstudiengang Lebensmittelwissenschaften der Fakultät Life Sciences an der Hochschule Rhein-Waal vom 22.01.2026 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2026-02 Y1 - 2026 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-23163 VL - 2026 IS - 02 ER - TY - THES A1 - Heesen, Lisa T1 - Anforderungsorientiertes BGM für Flughafenfeuerwehren: Konzeption eines gesundheitsförderlichen Maßnahmenpaketes nach EASA-Vorgaben am Airport Weeze N2 - Hintergrund: Flughafenfeuerwehren sind spezifischen physischen und psychischen Belastungen ausgesetzt, die sich besonders durch Schichtarbeit und seltene, aber hochintensive Einsatzlagen auszeichnen. Trotz der zunehmenden Bedeutung eines Betrieblichen Gesundheitsmanagements (BGM) existieren insbesondere an kleinen und mittleren Regionalflughäfen bislang wenig systematische und arbeitsplatzspezifische Gesundheitskonzepte. Die Anforderungen an Gesundheit und Einsatzfähigkeit der Flughafenfeuerwehren werden zudem durch die Vorgaben der Europäischen Agentur für Flugsicherheit (EASA) maßgeblich mitbestimmt. Ziel dieser Arbeit war es, das Belastungs- und Bedarfsprofil der Flughafenfeuerwehr am Airport Weeze zu erfassen und darauf basierend ein ganzheitliches und EASA-konformes Maßnahmenkonzept zur Gesundheitsförderung und Erhaltung der Einsatzfähigkeit zu entwickeln. Methode: Die Untersuchungen erfolgten im Rahmen eines Mixed-Methods-Designs. Insgesamt 28 der 37 angestellten Einsatzkräfte wurden mittels eines teilstandardisierten Fragebogens zu physischen und psychischen Belastungsfaktoren, Trainings- und Erholungsverhalten sowie der Akzeptanz und den Wünschen zu gesundheitsbezogenen Maßnahmen befragt. Ergänzend wurde eine systematische Dokumenten- und Umfeldanalyse sowie eine SWOT (Strengths, Weaknesses, Opportunities, Threats)-Analyse durchgeführt, um strukturelle Ressourcen, Barrieren und Entwicklungspotenziale zu identifizieren. Ergebnisse: Die Auswertung zeigt eine heterogene Alters- und Diensterfahrungsstruktur. Belastungsschwerpunkte wurden im Dienst durch Schichtdienst, Lärmexposition und sitzende Tätigkeiten verzeichnet. Gleichzeitig existieren Lücken in der Erfassung psychischer Belastungen und in der systematischen Dokumentation des Dienstsports. Darüber hinaus wurde festgestellt, dass bislang keine einheitlichen Trainings- oder Testungsverfahren für den Dienstsport vorhanden sind, sodass die körperliche Leistungsfähigkeit der Einsatzkräfte nicht regelmäßig überprüft oder gezielt gefördert wird. Die Einsatzkräfte äußerten ein hohes Interesse an strukturierten Trainings-, Resilienz- und Teammaßnahmen sowie den Bedarf an niederschwelligen Unterstützungsangeboten. Jedoch wurde eine geringe Bereitschaft zur aktiven Mitgestaltung verzeichnet. Schlussfolgerung: Auf Grundlage der Analyse wurde ein modular aufgebautes und EASA-konformes BGM-Konzept entwickelt. Das Konzept umfasst eine jährliche sportmedizinische Leistungsdiagnostik, individualisierte Trainingspläne, Peer-Support-Strukturen, Maßnahmen zur Resilienzförderung, Schulungen für Führungskräfte sowie partizipative Team- und Kommunikationsformate. Darüber hinaus bietet es einen praxisorientierten Ansatz zur strukturierten Gesundheitsförderung in sicherheitsrelevanten Einsatzbereichen und kann unter Berücksichtigung lokaler Rahmenbedingungen auf andere Regionalflughäfen übertragen werden. KW - Flughafenfeuerwehr KW - Resilienz KW - Betriebliches Gesundheitsmanagement KW - Belastungsprofil KW - Sport KW - EASA KW - Einsatzkräfte Y1 - 2025 ER - TY - THES A1 - Ustritski, Nikita T1 - Competitiveness of Green vs. Traditional Companies: A Comparative Study in the Automotive, Hospitality, and Fashion Industry N2 - This thesis compares short-term and long-term competitiveness between green and traditional companies in the automotive, hospitality, and fashion industries. Existing research rarely examines multiple industries together or evaluates competitiveness using both time perspectives, creating a clear research gap. The research question asks how green and traditional companies differ in financial performance, innovation, consumer trust, and regulatory responsiveness. The hypothesis proposes that green companies show lower short-term competitiveness, but higher long-term competitiveness than traditional firms. A qualitative comparative case study approach is applied using secondary data, including annual reports, sustainability disclosures, ESG ratings, and international regulatory frameworks. Six companies are analysed: Tesla and Toyota in the automotive sector, Hilton and Wyndham in hospitality, and Kering and H&M in fashion. Their competitiveness is assessed through a structured framework that distinguishes between immediate business outcomes and long-term strategic development. The findings show that traditional companies perform better in the short term due to efficient cost structures, established operating models, and stable supply chains. Green companies, however, achieve stronger long-term competitiveness by investing in innovation, transparency, and alignment with tightening regulatory and consumer expectations. Tesla, Hilton, and Kering demonstrate superior long-term performance, while Toyota, Wyndham, and H&M maintain advantages mainly in the short term. The results support the hypothesis and highlight sustainability as an important driver of long-term competitiveness. The study offers cross-industry insights for academics, managers, and policymakers and identifies opportunities for future research on sustainable business models. KW - Sustainability KW - Competitiveness KW - Innovation KW - Green companies KW - Traditional companies Y1 - 2026 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-23123 ER - TY - JOUR T1 - 01/2026 Korrektur der Ersten Änderungssatzung zur Prüfungsordnung für den Bachelorstudiengang „Engineering“ an der Hochschule Rhein-Waal vom 10.10.2025 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2026-01 Y1 - 2026 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-23114 VL - 2026 IS - 01 ER - TY - THES A1 - Achale Arrah Nyama, Bateatey T1 - Development of Sustainable Nanofibre Wound Dressing Using Solution Blow Spinning. N2 - This thesis investigates the production of polylactic acid (PLA) fibrous mats using a low-energy, airbrush-based solution blow spinning (SBS) method with dimethyl carbonate (DMC) as a greener solvent. The study addresses how changes in PLA concentration and air pressure influence fibre formation, fibre diameter distribution, and non-woven mat structure, and examines the implications for incorporating tea tree oil(TTO) and pectin into the resulting materials. PLA solutions in DMC were prepared at multiple concentrations, and the SBS process was evaluated using realistic deposition observations and calculated estimates of material consumption. Fibre morphology was analysed by scanning electron microscopy (SEM), revealing fibrous structures and parameter-dependent differences in diameter distributions and mat heterogeneity. Chemical structure was assessed via FTIR spectroscopy, which indicated that the produced fibre mats were dominated by PLA-characteristic spectral features (and possible DMC contributions), while providing limited evidence for substantial pectin or TTO contributions in the measured spectra under the tested conditions. Thermal analysis (STA) was used to interpret important PLA thermal transitions and to identify possible traces of composites within the fibres. A qualitative hydrophilicity approach based on water droplet wetting behaviour was applied as an initial indicator of surface wettability and potential pectin effects, while recognising its limitations compared to full contact-angle measurements. Overall, the results support SBS with DMC as a viable route to produce PLA fibrous mats and show clear process–structure relationships. However, they also show that better mixing methods and stronger confirmation evidence are needed at every step of the characterisation chain in order for additive incorporation to work. KW - PLA KW - Nanofasern KW - Airbrush-Spinning KW - Wundauflagen KW - Grüne Chemie KW - Dimethylcarbonat KW - Nachhaltige Biomaterialien KW - Antibakterielle Wundauflagen KW - Faserherstellung KW - Polylactic acid KW - Nanofibers KW - Solution blow spinning KW - SBS KW - Low-energy fiber fabrication KW - Wound dressing materials KW - Green solvents KW - Dimethyl carbonate KW - DMC KW - Sustainable biomaterials KW - Antibacterial coatings Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-23107 ER - TY - THES A1 - Saw, Daniel Chern Hao T1 - Implementation of Bayesian Optimisation for FEM Simulation N2 - Optimisation of engineering problem involving FEM simulations is time consuming especially when dealing with high-fidelity structures. The conventional methods of searching and exploring the design space such as grid search or golden section search require a lot of evaluations before converging on an optimal solution. When there is a time constraint, the final solution found could be suboptimal due to the vast amount of FEM simulation necessary to converge. Therefore, with the utilisation of probabilistic surrogate models such as Gaussian process regression to reduce the amount of computation necessary. Surrogate models approximate unobserved areas in the design space based on the observed data. Together with the use of acquisition function to select the next observation point, it forms this optimisation method known as Bayesian optimisation. This research aims to implement Bayesian optimisation method in a few test cases involving FEM simulation to compare its performance against conventional methods. The results from the test cases showed that Bayesian optimisation converged up to 12 iterations faster compared to convention-al optimisation methods. It also provided a better optimised solution in a multiparameter optimi-sation problem with constraints. KW - Bayesian Optimisation Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-23092 ER - TY - THES A1 - Ahmed, Syed Nasif Uddin T1 - Designing a Launching System for a Robotic Boat N2 - Based on the learning in this degree program, the author was tasked with developing a transport system for the current research boat, called Roboboat. The aim was to examine the components and reverse engineer them to calculate the mechanics of the boat. Because no design or measurement data were available, this thesis began by modeling the boat. After modeling, a literature review was conducted, and a launch system was designed with a focus on utility and cost-effectiveness. This report presents the design process, calculates the stress and strain on the design elements, and presents the concept of a launch system. Finally, the stability of the boat is calculated, and the mathematical validation of Roboboat is presented. Y1 - 2025 ER - TY - THES A1 - Terhardt, Isabel T1 - Nachhaltiger Sonnenschutz für die Haare: Produktentwicklung und experimentelle Methodenfindung zur Bewertung der Lichtschutzwirkung N2 - Human hair is significantly affected by UV radiation. UVA and UVB radiation in particular cause hair to become drier and more porous, making it more prone to structural damage. These effects can be attributed to the breakdown of the hair protein keratin. Suitable in vitro and ex vivo models were used to demonstrate the degradation of hair keratin by UV radiation and to illustrate this visually using real strands of hair. The aim of this work was to develop physically effective protection for hair against UV radiation and to demonstrate the protective effect of such sunscreen products on hair keratin using a specially developed methodology. In line with the current trend toward “skinification” concepts and formulation approaches from facial care were transferred to the hair care sector. For this purpose, a sun protection spray with modern oil-soluble and water-soluble UV filters was developed. Particular attention was paid to the optimal solution of the UV filters in an aqueous O/W emulsion and the subsequent sprayability of the emulsion in order to be able to apply the product evenly to the hair. The aspect of sustainability also played an important role in the selection of raw materials and the manufacturing process. In vitro tests were performed on specially manufactured keratin-containing agarose plates, irradiated with UV light, and then evaluated photometrically using a BCA assay. The samples treated with the product showed a significantly higher keratin content compared to untreated samples, indicating a protective effect against UV-induced keratin degradation. In addition, ex vivo tests on real hair strands confirmed a positive effect of the product treatment on the appearance and feel of the hair. The methodology developed represents an innovative approach to investigating the protective effect of hair sunscreen products on hair keratin and provides a basis for further research and product development. However, adjustments and optimizations of the formulation are necessary for standardization of the methodology. KW - Hair photoprotection KW - UV induced hair damage KW - Keratin degradation KW - In vitro hair model KW - Keratin agarose plate KW - Protein quantification KW - BCA assay KW - Sunscreen for hair KW - Hair fiber protection KW - UVA UVB irradiation KW - Photostability KW - Cosmetic formulation KW - Sprayable emulsion KW - Sustainable hair care KW - Film former KW - Color fading KW - Hair photodegradation KW - Ex vivo model KW - Protein loss KW - Biomimetic substrate KW - UV exposure assay KW - Spectrophotometric analysis KW - Statistical analysis ANOVA. Y1 - 2026 ER - TY - THES A1 - Gravenhorst Arias, Valentina T1 - Betalain accumulation and biosynthetic gene expression in grain Amaranth species exposed to salt stress N2 - Amaranth species have gained renewed interest as a nutritional pseudocereal, with increased climate resilience and a high content of bioactive compounds, such as betalains. These nitrogen-containing pigments contribute to stress tolerance and have applications as natural colorants and food supplements due to their antioxidant properties. This study investigated the effect of high salt stress (200mM NaCl) on growth, physiological performance, betalain accumulation, pigment composition, and gene expression in six Amaranth accessions over a 14-day period of exposure. Phenotypic observations revealed visible stress symptoms, such as reduced growth and leaf senescence, whereas physiological parameters such as photosynthesis, stomatal conductance, transpiration, and internal CO2 concentration remain unaffected by salinity. Spectrophotometric quantification showed an increase in betalain concentrations after the 14-day testing period in all genotypes, salt treatment showed minor inconsistent effects. The total betalain concentration was quantified, the results per accession are for Ama 104 3.013 mg/100 g FW, Ama 124 2.944 mg/100 g FW, Ama 154 4.088 mg/100 g FW, Ama 157 4.735 mg/100 g FW, Ama 162 2.227 mg/100 g FW, Ama 169 18.248 mg/100 g FW. Characterization of betalains with HPLC-DAD-MS analysis confirmed the presence of amaranthine and isoamaranthine as the dominant betalain present in Amaranth leaves, which is consistent with the known betalain presence of grain amaranth species; no betaxanthins were detected. Gene expression analysis of CYP76AD2, DODA2, DODAα2, and SOS1 revealed no significant transcriptional induction under salt stress after the 14-day salt stress treatment. These results may suggest that betalain accumulation occurred due to normal developmental regulation rather than a salinity effect. However, analysis 24-48 after salt stress induction is recommended to conclude. The combined results reveal variation in pigment levels and salinity-stress response and demonstrate the resilience of grain amaranth to increased salinity exposure. The variation in pigment accumulation indicates the importance of selecting high-betalain accessions for industrial applications at an early stage. Future research should focus on early transcriptional levels and regulatory mechanisms to better understand stress response in the betalain pathway of these amaranth accessions. Y1 - 2025 ER - TY - THES A1 - Aziz, Sk Tarik T1 - The Impact of Employee Job Satisfaction on Organization's Long-Term Performance N2 - The purpose of the study is to investigate the impact of employee job satisfaction on organizational long-term performance and focus on the key factors that increase satisfaction among employees. Previous research has mostly focused on short-term organizational outcomes, and there is limited evidence about the factors that enhance job satisfaction and ensure long-term performance of an organization. To fill this gap, qualitative research was conducted, and data was collected through semi-structured interviews, and the data was analyzed using MAXQDA software. The findings represent some of the factors that significantly increase job satisfaction, such as positive and supportive work environment, flexibility and autonomy at work, career growth and continuous learning opportunities, and fair compensation with meaningful recognition. The participants repeatedly highlighted these factors as a source of enhancing motivation, dedication, commitment, and employee performance. The study suggests that when organizations actively follow and implement these factors, it is more likely to increase employee satisfaction and satisfied employees improve productivity, achieve organizational goals, and increase a higher level of dedication, which ensures organizational long-term performance. KW - Job satisfaction KW - Organizational long-term performance Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-23053 ER - TY - THES A1 - Bhalla, Kushagra T1 - Strategic Obsolescence Management: Developing a Process-Oriented and Financially Viable Concept N2 - Industrial machinery is designed for long operating periods, but many electronic and mechatronic components used in these systems are discontinued after a short product lifecycle. This situation causes challenges for Strama-MPS, especially in the Global Service division, where long-term spare-parts availability and reliable customer support are required. When components are no longer available, urgent procurement, redesigns under time pressure, longer downtimes and higher service costs put additional load on internal departments and can negatively affect customer relationships. This thesis develops a structured and financially viable approach to obsolescence management for Strama-MPS. The current situation was analysed using expert interviews and SAP and PRO.FILE data for the period 2018 to September 2025. The evaluation of more than 13,000 obsolete materials showed fragmented communication, insufficient lifecycle documentation and that only a few large suppliers systematically send PCN notifications, while many others do not. To summarise the results, a Power BI dashboard was created that shows portfolio age, part criticality, successor availability and supplier concentration. The analysis identified an average part age of 6.75 years, a cost-at-risk of around €1 million and a high-risk group mainly consisting of electrical and control components. In a second step, the active parts portfolio was evaluated to identify future risks. Using manually cleansed Excel files and Power BI models, a lifecycle forecast was developed for the period 2026–2029. It highlights early-warning patterns in connectors, sensors, I/O modules and control units with short technology cycles and high dependency. These results enable earlier evaluation of alternatives, more controlled last-time-buy decisions and more proactive customer communication. Based on these findings, the thesis proposes a target framework in line with DIN EN IEC 62402:2025-05. It defines responsibilities, decision and communication paths, and workflows between the relevant departments. A dedicated Obsolescence Manager is assigned as the central process owner and is supported by SmartPCN-compatible input formats, lifecycle dashboards and an implementation plan that starts with an internal pilot and later includes the roll-out of PCN Global as the OM software. The strategic options were assessed using an MCDA, comparing reactive, proactive and strategic approaches. The results show that a dedicated role combined with suitable software offers a good balance between cost control, early-warning capability and acceptance. The financial analysis indicates that the concept can pay back within the first year by reducing emergency sourcing, redesign work and service delays, while also improving collaboration, decision quality and long-term service performance. Overall, the proposed structure provides a clear basis for more consistent and reliable lifecycle handling across the organisation. KW - Obsolescence Management KW - Product Lifecycle Management KW - Spare Parts Availability KW - Global Service Engineering KW - Product Change Notification KW - DIN EN IEC 62402 KW - Industrial Engineering KW - After-Sales Service KW - Capital Goods Industry KW - Lifecycle Risk Management Y1 - 2025 ER - TY - THES A1 - Friesen, Emilie T1 - Optimierung des administrativen und pflegerischen Aufnahmeprozesses in einer Akutklinik – Eine praxisorientierte Prozessanalyse N2 - Das deutsche Gesundheitswesen steht vor einer Vielzahl von Herausforderungen. Die durch den demografischen Wandel ausgelöste Alterung der Bevölkerung verursacht einen wachsenden Versorgungsbedarf und verstärkt parallel dazu den bereits bestehenden Fachkräftemangel. Bei gleichzeitig abnehmenden Kapazitäten sowie steigenden Kosten entsteht ein Kostendruck, der sich in negativen Jahreszahlen und Krankenhausinsolvenzen äußert. Krankenhäuser stehen demnach vor der Aufgabe, ihre Strukturen und Prozesse effizienter zu gestalten, um trotz begrenzter Ressourcen die Patientenversorgung sicherzustellen. Prozessoptimierungen bieten hierbei den entscheidenden Ansatz, um diesen Anforderungen entgegenzuwirken. Die vorliegende Arbeit beschäftigt sich mit der Optimierung des administrativen und pflegerischen Aufnahmeprozesses der Klinik Öschelbronn. Zur Erhebung des Ist-Zustands wurden halbstrukturierte Interviews mit sechs Mitarbeitern1 entlang des Aufnahmeprozesses durchgeführt. Die Prozesse wurden mittels Business Process Model and Notation visualisiert und anschließend analysiert. Als theoretischer Rahmen wurde das Lean Management gewählt. Die Analyse der Schwachstellen orientierte sich an den grundlegenden Lean Prinzipien und der Identifikation von Muda (Verschwendung), Mura (Ungleichmäßigkeit) und Muri (Überlastung). Anschließend wurden Maßnahmen entwickelt und der optimierte Soll-Prozess visualisiert. Im Rahmen der Analyse konnten strukturelle, digitale und kommunikative Schwachstellen herausgearbeitet werden. Diese Schwachstellen konnten den Handlungsfeldern Prozesssteuerung und Planung, Digitalisierung und Informationsmanagement zugeordnet werden. Die Maßnahmen zielen unter anderem auf die Reduktion von Prozessungleichmäßigkeiten, insbesondere durch klare Strukturen, und auf die Verbesserung der internen und externen Informationsweitergabe ab. Ergänzend sollen digitale Lösungen zur Prozessvereinfachung und zur Reduktion des administrativen Aufwands beitragen. Die Ergebnisse verdeutlichen, dass Handlungsspielräume bestehen, um Prozesse effizienter zu gestalten und Ressourcen einzusparen. Den aktuellen Herausforderungen des deutschen Gesundheitswesens kann demnach in gewissem Maße eigenständig begegnet werden, um die internen Strukturen zu stärken. Y1 - 2025 ER - TY - THES A1 - Arslan, Yesim T1 - Evaluation of Urban Consumer Behaviour in Düsseldorf: Practical Implications for Strengthening Farmer-Consumer Relationships N2 - This study examines how to strengthen the relationship between urban consumers and local farmers in Düsseldorf through direct purchase. The background of climate change, long supply chains, and growing consumer detachment from food production form the motivation to bring consumers and agricultural producers closer together, especially in urban areas such as Düsseldorf. Therefore, this study explores which factors influence consumer willingness (intention) and actual purchasing behavior of regional products. The work is based on the Theory of Planned Behavior model (TPB), extended by the additional variable trust and uses a mixed-method approach, which combines literature review, an online survey (n=150), and two semi-structured interviews with local farmers. The statistical results show that attitude, social norms, perceived behavioral control, and trust do not significantly influence regional purchasing intention or actual behavior. The only significant effect can be seen on the willingness to pay higher prices for regional products in different age groups. Older consumers (>36) show significantly higher willingness to pay higher prices than younger consumers (<35). Furthermore, the findings show a clear attitude-behavior gap, where interest or positive attitude towards regional products cannot be translated into real purchasing behavior of regional products. Additional descriptive results show that prices, convenience, and product variety influences grocery choices the most, and social media and recommendations from friends/family are most relevant information sources. Based on these insights, this study develops implications for farmers, consumers, and the city with the goal of strengthening the relationship between local farmers and urban consumers. Key recommendations include hybrid approaches by combining stronger digital visibility with strong personal interaction. Additionally, target group specific actions for younger and older consumers are presented as well as models that combine flexibility with direct exchange such as hybrid CSA. All in all, to strengthen the relationship between urban consumers and local producers cultural and structural changes are required, in which consumers, producers and the city itself share common responsibility. Y1 - 2025 ER - TY - THES A1 - Jagjit Singh, Humjeet Singh Gill T1 - The effect of shearing in a twin-screw extruder on the mechanical properties of biopolymers (PLA+PBAT) using varied screw designs N2 - The primary aim of this research project was to determine the effects of shearing on the structure of a blend of biopolymers (PLA+PBAT) through tailored screw designs in a twin-screw extruder. To achieve this, 3 different twin intermeshing co-rotating screw designs of an extruder were used. The designs were mainly focused on the kneading and mixing part of the screw which has a shearing effect on the biopolymer. The experiments were carried out by keeping the temperature, screw speed and feed rate constant. To carry out the experiment, a 60:40 blend of PBAT and PLA was utilized. The compounded pellets produced from the 3 screw designs were then used in a Blown Film machine. Furthermore, tensile test was conducted on the resulting samples. The shear strength and strain of the films were calculated. Tear test of the films were additionally carried out to validate the findings. Fourier Transform Infrared (FTIR) test was conducted to study the functional groups, identifying the chemical interactions and phase compatibility of the of PLA&PBAT blend. The results showed that the screw with 3 kneading blocks (HS) and 2 kneading blocks (MS) exhibited almost similar ultimate strength and ultimate strain. The screw design with only conveying elements had lower ultimate strength and strain. The kneading blocks played a role on the mixing and shearing of the biopolymer structure in the blend. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-22950 ER - TY - THES A1 - Ganev, Ivan T1 - Design and Implementation of a Virtual Gearbox N2 - This thesis represents the design and implementation of a virtual gearbox functionality as a system with an end goal to be used on the Electric Gokart platform. The design includes a 3-part solution consisting of: - Human-machine interface (HMI) – that is a physical hardware as a separate unit with its own housing - Intermediary software for transfer of input information and output feedback of the user – as software code - Control Model – MATLAB Simulink model to be run on the main computer of the platform to facilitate the motion control Due to the system complexity and multidomain solution the work has been broken down and documented to focus on a specific aspect for each deliverable. The human machine interface focuses on the hardware aspect of the functionality – research on and evaluation of different components for the input, feedback and communication and the impact of each component to the further development of the intermediary software. The software part is focused on choosing and implementing an efficient and logical handling of the sampling and relay of information to prevent the potential problem of communication network overload. And finally, the Simulink Control Model will focus on investigating input information, processing and motion control realised via torque control. The information is to be used used in developing a system response model evaluating it on the prototype and allowing tuning via system identification in the MATLAB Simulink development environment. Y1 - 2025 ER - TY - THES A1 - Malov, Ernest T1 - Development of selection criteria and systematic methodology for the design of novel hydrogels N2 - Hydrogels are a broad field of materials with applications in many niche areas. To advance the state of the art, research should explore new combinations of chemical and practical components to discover syntheses with novel emergent properties. However, given the vast amount of information available, it is challenging to systematically narrow the search to an effective comparison of a few select candidates. This work proposes a selection and evaluation methodology for building a comparative scope to decide on a set of hydrogel recipe components. Recipe design needs are determined using an existing bibliometric analysis of a hydrogel subfield, and available options are sourced from literature reviews, then assessed based on properties discussed in the literature. Candidates for the crosslinking initiation mechanism, the monomer system, and the crosslinking control method are evaluated separately and sequentially. Recipe permutations are possible as multiple choices are scored. The resultant recipe is a photoinitiated (LAP; irradiated at 380.5nm), thiol-ene (TMPMP-Maleimide), light-patterned (maskless PWM-DLP) hydrogel that swells and bends in response to water due to osmolyte (D-Sorbitol) diffusion. This novel formulation is not currently present in the literature; however, it does not exhibit any chemical or practical incompatibilities. A range of component concentrations, possible failure scenarios, and recommended fixes are provided for initial testing. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-22934 ER - TY - THES A1 - Biehn, Joshua T1 - Design and Validation of a Bio-Inspired Tendon-Driven Continuum Manipulator N2 - This thesis develops bio-inspired, multi-segment tendon-driven continuum manipulator through a structured, iterative design process. Combining piecewise constant-curvature modeling, for design validation, with hybrid soft-rigid joint fabrication, three prototypes explore trade-offs among anatomical scale, actuation efficiency, and structural compliance. Novel, internal, soft-rigid components, buckling-mitigation features and internally routed tendons are integrated and evaluated under a common experimental frame work. Demonstrations include single-finger grasps and coordinated bimanual object handling, confirming the manipulator’s viability for humanoid end-effector tasks. The final design produced a tip-load of ≈ 17N for a pinching grasp and ≈ 12N in a power grasp, with 4 degrees of freedom and a maximum bending angle of 209°. Future work will focus on closed-loop control, dynamic interaction testing, and scaling to multi-digit hands. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-22928 ER - TY - THES A1 - Heesen, Jacquelin T1 - Eine qualitative Studie zur beruflichen Teilhabe im deutschen Arbeitskontext: Wahrnehmungen, Herausforderungen und Handlungsspielräume bei (potenzieller) Demenz am Arbeitsplatz N2 - Demenz wird überwiegend als altersassoziiertes Gesundheitsproblem betrachtet, kann jedoch auch bereits vor dem 65. Lebensjahr auftreten. Angesichts der allgemein prognostizierten Zunahme von Demenzerkrankungen und des steigenden gesetzlichen Renteneintrittsalters erhöht sich die Wahrscheinlichkeit, dass Menschen mit beginnender Demenz noch aktiv am Erwerbsleben teilnehmen. Während international bereits erste empirische Erkenntnisse zum Umgang mit demenziell erkrankten Mitarbeitenden vorliegen, besteht für den deutschen Arbeitskontext bislang eine Forschungslücke. Um diese Lücke zu adressieren, wurde im Rahmen der vorliegenden Untersuchung ein exploratives Stimmungsbild zur Wahrnehmung, Sensibilisierung und Handlungsbereitschaft im Umgang mit (potenziell) an Demenz erkrankten Mitarbeitenden erhoben. Hierzu wurden qualitative, halbstrukturierte Expert:inneninterviews mit Fachpersonen aus dem Betrieblichen Gesundheits- und Eingliederungsmanagement sowie aus der Demenzberatung durchgeführt und mithilfe der inhaltlich-strukturierenden qualitativen Inhaltsanalyse nach Kuckartz ausgewertet. Zur Berücksichtigung der Perspektive von Menschen mit Demenz wurden darüber hinaus Interviews mit Betroffenen und ihren Angehörigen, die im Rahmen der Studie STELDA (Untersuchung zu Stigmatisierungserfahrungen von Menschen mit Demenz und ihren Angehörigen) erhoben wurden, im Zuge einer Sekundäranalyse erneut analysiert, um vertiefende Einblicke aus der Betroffenenperspektive in das Thema Demenz am Arbeitsplatz zu erhalten. Die Untersuchung verdeutlicht, dass Demenz im betrieblichen Kontext bislang kaum thematisiert wird. Es zeigt sich ein deutlicher Sensibilisierungs- und Informationsbedarf sowie begrenzte strukturelle Voraussetzungen für die Weiterbeschäftigung betroffener Mitarbeitender. Gleichzeitig bestehen Potenziale innerhalb etablierter BGM- Strukturen und im Ausbau der Zusammenarbeit mit externen Beratungsstellen, die eine verbesserte Unterstützung ermöglichen könnten. Auf Grundlage der gewonnenen Erkenntnisse wurden praxisorientierte Handlungsempfehlungen formuliert, die darauf abzielen, die berufliche Teilhabe von Menschen mit Demenz im deutschen Arbeitskontext zu fördern. KW - Demenz am Arbeitsplatz KW - Young-Onset-Dementia (YOD) KW - Berufliche Teilhabe KW - Betriebliches Gesundheitsmanagement (BGM) KW - Betriebliches Eingliederungsmanagement (BEM) KW - Sensibilisierung KW - Demenz-Stigma Y1 - 2025 ER - TY - JOUR T1 - 25/2025 Erste Änderungssatzung zur Prüfungsordnung für den Bachelorstudiengang „Engineering for Sustainability“ an der Hochschule Rhein-Waal vom 14.10.2025 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2025-25 Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-22900 VL - 2025 IS - 25 ER - TY - JOUR T1 - 24/2025 Erste Änderungssatzung zur Prüfungsordnung für den Bachelorstudiengang „Engineering“ an der Hochschule Rhein-Waal vom 10.10.2025 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2025-24 Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-22893 VL - 2025 IS - 24 ER - TY - JOUR T1 - 23/2025 Prüfungsordnung für den Masterstudiengang Usability Engineering der Fakultät Kommunikation und Umwelt an der Hochschule Rhein-Waal vom 14.10.2025 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2025-23 Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-22888 VL - 2025 IS - 23 ER - TY - JOUR T1 - 22/2025 Zehnte Änderungssatzung zur Satzung über die Ausgestaltung des Auswahl- und Zulassungsverfahrens in zulassungsbeschränkten Studiengängen der Hochschule Rhein-Waal vom 28.10.2025 T3 - Amtliche Bekanntmachungen der Hochschule Rhein-Waal - 2025-22 Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-22871 VL - 2025 IS - 22 ER - TY - THES A1 - Kazimli, Farid T1 - Origami Applications in Engineering N2 - This thesis explores how origami-inspired modular structures—specifically uniformly thick, load-carrying designs—can be prototyped using accessible 3D printing work flows. We focus on translating geometric folding principles into real materials and hinges suitable for repeated deployment by designing printable panels and connectors, and by validating performance with a bar-and-hinge simulation approach. Physical prototypes are fabricated and tested for packing ratio, deployment re peatability, and stiffness-to-mass. Results indicate that thick-panel origami can be produced with consumer 3D printers while retaining compact storage, rapid deployment, and promising structural behavior. The work outlines a practical path toward portable, reusable, and more sustainable engineering systems that minimize material use, support repair and reuse through modularity, and simplify logistics through high packing ratios. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-22848 ER - TY - THES A1 - Al Sela', Subhi Moh'd S. T1 - Application of Carbon Fiber and Advanced Composites in Restorative Dentistry: A Study in Material Efficiency, Manufacturing viability, Market Potential and Innovation. N2 - This work presents a multidisciplinary evaluation of Carbon Fibre Reinforced Polyether Ether Ketone (CF-PEEK) as a core material for hybrid dental crowns, combined with lithium disilicate (E-max) veneers. The objective was to assess the mechanical, manufacturing, and economic feasibility of introducing CF-PEEK into restorative dentistry through an engineering-driven approach. A systematic literature review compared the elastic modulus, flexural strength, and density of CF-PEEK with conventional materials such as zirconia and porcelain-fused-to-metal. Results show that CF-PEEK exhibits a modulus close to natural dentin and lower density, offering improved biomechanical compatibility and reduced stress transmission. Additive manufacturing (3D printing) was identified as the most flexible and sustainable production method, minimising material waste and enabling customised crown fabrication. The study concludes that the CF-PEEK + E-max hybrid crown is mechanically viable and aligns with sustainability goals, though improvements in bonding, colour masking, and clinical validation remain necessary. This approach demonstrates how industrial engineering tools including TRIZ, QFD, and KANO can effectively guide innovation in dental materials and workflows. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1383-opus4-22823 ER -