Offenburg University of Applied Sciences
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Vergleichende Analyse der Nachhaltigkeitsberichterstattung in KMU
No full textDie Arbeit analysiert vergleichend ausgewählte Standards und Instrumente der Nachhaltigkeitsberichterstattung für kleine und mittlere Unternehmen mit besonderem Fokus auf die soziale Dimension. Ziel ist es, die KMU-Tauglichkeit dieser Ansätze zu bewerten und daraus einen praxisorientierten Leitfaden zur systematischen Erfassung und Kommunikation sozialer Nachhaltigkeit abzuleiten
Ansatz einer identitätsbasierten Markenführung
No full textWenn sich das Leistungsportfolio, die Arbeitsweise und das Selbstverständnis eines Unternehmens weiterentwickeln, stellt sich zwangsläufig die Frage, inwiefern die bestehende Marke dieser Entwicklung noch gerecht wird.
Aus diesem Grund thematisiert die vorliegende Arbeit das Rebranding und den Aufbau einer neuen Marke für eine kleine Mediaagentur. Im Zuge organisatorischer und inhaltlicher Veränderungen zeigte sich, dass die bisherige Agenturmarke die aktuelle Ausrichtung des Unternehmens nur noch eingeschränkt widerspiegelte. Vor diesem Hintergrund entstand die Notwendigkeit, eine geeignete Markenidentität zu entwickeln, um das Selbstverständnis der Agentur nach innen zu strukturieren und nach außen nachvollziehbar zu machen. Insbesondere Agenturen, die überwiegend immaterielle Leistungen anbieten, deren Qualität vor der Inanspruchnahme nur begrenzt beurteilbar ist, können durch einen konsistenten Markenauftritt an Vertrauen und Glaubwürdigkeit gewinnen
Enhancing thermal, acoustic, and mechanical performance of cob and wattle-and-daub walls: A parametric study on the combined role of straw and reed
No full textCob and wattle-and-daub techniques, characteristic of vernacular architecture, offer a compelling path towards low-carbon construction. However, missing the experimental data on the thermal, acoustic, and mechanical performance of wattle-and-daub, and limited acoustic performance data for cob, hinders widespread adoption and their relevance in contemporary building frameworks. This study addresses this shortfall by investigating the effects of straw fibers and reed reinforcement on cob and wattle-in-daub systemsS. Two formulations were tested: heavy (H) with 2 wt% of straw for load-bearing walls, and Lightweight (LW) with 10 wt% straw for non-structural elements, each assessed with and without reed reinforcement. Results revealed significant performance enhancements, including a 51 % reduction in thermal conductivity for reinforced LW mixtures (0.197 Wm−1.K−1), and a 43 % decrease for H formulation (0.227 Wm−1.K−1). Compressive strengths increased by 140 % (2.74 MPa) and 150 % (2.85 MPa) for reinforced LW and H configurations using reed, respectively, while flexural strengths improved by up to 89 % (0.68 MPa) and 69 % (0.61 MPa), respectively. Acoustically, the reinforced H configuration demonstrated the best transmission performance in the mid and high frequencies (250 Hz–1000 Hz), reaching 23 dB in 630 Hz. While the best noise absorption was observed by the reinforced LW configuration at mid to high frequencies (250 Hz–500 Hz), reaching 94 dB at 500 Hz. These results highlight the potential of combining straw fibers and reed reinforcement to enhance traditional construction methods, offering improved performance while maintaining sustainability and cultural significance
World Conference of AI-Powered Innovation and TRIZ Methodology
No full textThis book constitutes the proceedings of the 25th IFIP WG 5.4 International TRIZ Future Conference on AI-Powered Innovation and Inventive Design, TFC 2025, held in Paris, France, during November 5–7, 2025.
The 48 full papers included in this book were carefully reviewed and selected from 75 submissions. They were focused on topical section as below.
Part I: Neuro-Symbolic and AI-Assisted Contradictions; Generative Agents for Ideation and Design; Tech Mining, Forecasting and Cross-Domain Exploration; Modeling, Verification and Optimization of Technical Systems and Frameworks for Digital Transformation and Industry 5.0.
Part II Cognition, Causality and Systematic Prototyping; Innovation Governance and Standardization; Innovation Governance and Standardization; Data, Forecasting and Intelligent Services and User Experience and Interoperable Public Policies
Benchmarking Robot and Cobot Performance for an Assembly Application
Full text linkOver the past decade, the popularity of cobots (collaborative robots) has grown, largely due to their operator-friendly usage. When selecting a cobot or robot for a specific application, it is essential to consider which model best aligns with the desired process. The objective of this work is to introduce a method for evaluating the three-dimensional position performance of a given process to identify the optimal technical solution
Synthesis of Lipopeptides Using Vegetable Oils by Newly Isolated Strain of Serratia marcescens G8-1: Genomic Characterization and Process Performance
Full text linkBiosurfactants are becoming increasingly popular, but industrial production of biosurfactants is difficult, partly due to high production costs resulting from the need to use expensive substrates. One economically feasible candidate is vegetable oils, which can be directly metabolized without pretreatment. The aim of this work is therefore to investigate the possibility of using vegetable oils for lipopeptide production by Serratia marcescens G8-1. The genetic background of this strain for the production of lipopeptides was investigated using a genomic approach. The biosurfactants were analysed by Ultra-Performance Liquid Chromatography coupled with Electrospray Ionisation Mass Spectrometry. The ability to reduce surface tension was investigated using a tensiometer. The results showed that the best effect in reducing surface tension was achieved by adding waste rapeseed oil. Sunflower and linseed oil also showed good results. Significantly poorer results were obtained when fresh rapeseed oil, sesame oil and pumpkin seed oil were used. The putative gene cluster for cyclic lipopeptides NRPS was identified in the genome of S. marcescens G8-1. The results obtained confirmed that serrawettin W1 is the major biosurfactant produced by S. marcescens G8-1. Of particular interest, the results showed the presence of vinylamycin when rapeseed oil was used
Online Parameter Identification Method for Electrical Machines Based on Angle Dependent Control
No full textAccurate parameter knowledge of highly utilized electric machines is crucial for ensuring stable operation across their entire operating range. While detailed characterization on a test bench allows precise parameter determination, manufacturing tolerances often demand individual machine measurements for optimal performance. Such measurements, however, are impractical in real-world applications due to the considerable time requirements and reliance on specialized equipment or a test bench setup. To address this challenge, this paper proposes a novel online parameter identification method that enables real-time estimation of rotor-oriented inductances during normal machine operation. The method employs an angledependent field-oriented control strategy and eliminates the need for additional measurement hardware or test bench setup. The theoretical framework, experimental setup, and results are presented and critically analyzed, demonstrating the method's effectiveness and practicality
Automatisiertes Schrauben eines definierten Anziehdrehmoment mit einer endlosdrehenden Achse 6 eines vertikalen Knickarmroboters
No full textDieser Beitrag stellt einen Ansatz zur Automatisierung von Schraubprozessen in der Montage vor. Täglich müssen zahlreiche Schraubverbindungen mit kostenintensiven Schraubsystemen eingebracht werden. Im Rahmen der Konzeption einer automatisierten Montage wurde untersucht, ob ein vertikaler Knickarmroboter diese Aufgabe übernehmen kann um zusätzliche Investitionen in spezialisierte Schraubtechnik einzusparen
Frauen in sozialen Medien - Vereinbarkeit von Familie und Beruf im Kontext des 'Tradwife'-Modells?
No full textDie vorliegende Bachelorarbeit untersucht den Einfluss des in sozialen Medien zunehmend populären Trends der Tradwife-Bewegung hinsichtlich der Vereinbarkeit von Familie und Beruf. Dabei liegt der Fokus auf der beruflichen Selbstverwirklichung junger Frauen. Um die zugrundeliegende Forschungsfrage beantworten zu können wird neben einer theoretischen Grundlage eine empirische Untersuchung in Form von qualitativen Interviews herangezogen.
Die Ergebnisse zeigen auf, dass das in den sozialen Medien propagierte traditionelle Rollenbild durch Tradwife-Influencer:innen, die Frauen ausschließlich in der Rolle als Hausfrau und Mutter zeigen, nicht mit den Lebensvorstellungen vieler junger Frauen übereinstimmt und somit auf große Kritik stößt. Der Wunsch nach finanzieller Unabhängigkeit und die Möglichkeit zur beruflichen Selbstverwirklichung sowie die Vereinbarkeit von Familie und Beruf stehen im Vordergrund, nicht jedoch die Reduktion der Frau auf ihre Weiblichkeit und die Rolle als Mutter. Darüber hinaus geben die gewonnenen Ergebnisse Aufschluss darüber, dass die realitätsfernen Darstellungen und der vermittelte Perfektionismus emotionalen und unterschwelligen Druck erzeugen, gesellschaftlichen Erwartungen gerecht zu werden. Viele Frauen sehen sich mit dem Anspruch konfrontiert, familiären und beruflichen Rollen gleichermaßen gerecht zu werden. Ein Balanceakt der auf Dauer eine große Belastung darstellen kann
Managing lower extremity loading in distance running by altering sagittal plane trunk leaning
No full textBackground
Trunk lean angle is an underrepresented biomechanical variable for modulating and redistributing lower extremity joint loading and potentially reducing the risk of running-related overuse injuries. The purpose of this study was to systematically alter the trunk lean angle in distance running using an auditory real-time feedback approach and to derive dose–response relationships between sagittal plane trunk lean angle and lower extremity (cumulative) joint loading to guide overuse load management in clinical practice.
Methods
Thirty recreational runners (15 males and 15 females) ran at a constant speed of 2.5 m/s at 5 systematically varied trunk lean conditions on a force-instrumented treadmill while kinematic and kinetic data were captured.
Results
A change in trunk lean angle from –2° (extension) to 28° (flexion) resulted in a systematic increase in stance phase angular impulse, cumulative impulse, and peak moment at the hip joint in the sagittal and transversal plane. In contrast, a systematic decrease in these parameters at the knee joint in the sagittal plane and the hip joint in the frontal plane was found (p < 0.001). Linear fitting revealed that with every degree of anterior trunk leaning, the cumulative hip joint extension loading increases by 3.26 Nm·s/kg/1000 m, while simultaneously decreasing knee joint extension loading by 1.08 Nm·s/kg/1000 m.
Conclusion
Trunk leaning can reduce knee joint loading and hip joint abduction loading, at the cost of hip joint loading in the sagittal and transversal planes during distance running. Modulating lower extremity joint loading by altering trunk lean angle is an effective strategy to redistribute joint load between/within the knee and hip joints. When implementing anterior trunk leaning in clinical practice, the increased demands on the hip musculature, dynamic stability, and the potential trade-off with running economy should be considered