Publication Server of Aschaffenburg University
Not a member yet
1531 research outputs found
Sort by
Digitales Engagement in ländlichen Räumen – Erkenntnisse einer explorativen Studie.
No full textWelche Gestaltungsmöglichkeiten und Handlungsoptionen haben Nonprofit Organisationen (NPOs) in Zeiten des Umbruchs? Wie kann Anpassung angesichts von Megatrends wie Digitalisierung und KI, demografischem Wandel und Klimawandel unter den Bedingungen von Personal- und Finanzierungsengpässen gelingen? Der Tagungsband versammelt 25 Beiträge zu vier thematischen Schwerpunkten: Herausforderungen des gesellschaftlichen Wandels für NPOs, Management im Wandel, Freiwilligenarbeit und Engagement sowie Genossenschaften, Vereine und Stiftungen im Wandel. Die Beiträge reflektieren aus einer interdisziplinären Perspektive aktuelle wissenschaftliche Erkenntnisse und liefern praxisrelevante Vorschläge für Transformationsprozesse in NPOs
Netzwerktheoretische Ansätze als Analyseparadigma in der Engagementforschung
No full textWelche Gestaltungsmöglichkeiten und Handlungsoptionen haben Nonprofit Organisationen (NPOs) in Zeiten des Umbruchs? Wie kann Anpassung angesichts von Megatrends wie Digitalisierung und KI, demografischem Wandel und Klimawandel unter den Bedingungen von Personal- und Finanzierungsengpässen gelingen? Der Tagungsband versammelt 25 Beiträge zu vier thematischen Schwerpunkten: Herausforderungen des gesellschaftlichen Wandels für NPOs, Management im Wandel, Freiwilligenarbeit und Engagement sowie Genossenschaften, Vereine und Stiftungen im Wandel. Die Beiträge reflektieren aus einer interdisziplinären Perspektive aktuelle wissenschaftliche Erkenntnisse und liefern praxisrelevante Vorschläge für Transformationsprozesse in NPOs
Effect of Hot Isostatic Pressing and Sequenced Heat Treatment on the Mechanical Properties of Hybrid Additive Manufactured Inconel 718 Components
No full textWe report on the effect of hot isostatic pressing combined with solution and ageing treatment in different sequences on the mechanical properties of Inconel 718 specimens, which in turn have been fabricated by a hybrid additive manufacturing approach. The latter combines conventional laser powder bed fusion and in-situ high speed milling, yielding superior surface quality as being quantified by Ra about 1 μm. In a comparative study between hybrid additively manufactured parts and those built without milling, we find that, in general, any combination of heat treatment leads to a higher ultimate tensile strength and an improved endurance limit, while, however, hot isostatic pressing affects these figures of merit most. In addition, metallographic analysis reveals increased density and hardness for hot isostatic pressed parts due to precipitation hardening. These improvements of the mechanical properties are found to be even more pronounced when the printed parts are manufactured by the hybrid additive approach, i.e., for parts with improved surface conditions
Sustainable Business Model Canvas
No full textImagining, designing and teaching regenerative futures is challenging. Educators often lack
approaches that allow them to address the complexities of global challenges through new
narratives, which make space for the imagination of desirable futures. Commonly in education,
we retell the story of an apocalyptic future when speaking about global challenges such as
biodiversity degradation and climate change. This narrative, which focuses on the risks and
dangers of global environmental change, is built on the assumption that the induced fear might
lead to action.
This toolkit supports educators who wish to follow a different route. It is based on the assumption
that “we can’t create what we cannot imagine” (quote by Lucile Clifton). Consequently, imagining,
designing, and teaching regenerative futures is the basis and starting point for actualizing
them. The beginning of fundamental change is often hard to track because it first takes place
in our minds. Visible, large-scale change arises from invisible, wild ideas and imaginations.
According to the philosopher and educator John Dewey, imagination is “the ability to look at
things as if they could be otherwise”. This ability to ask “what if?” is central to envisioning and
enacting better lives. The lack of broad-scale action towards regenerative ways of living can
be seen as a lack of imagination to create shared visions of an alternative future. Collectively
envisioning desirable futures provides the motivation and guidance for change, or as the poet
Rainer Maria Rilke put it: “the future enters into us, in order to transform itself in us, long before
it happens.”
This toolkit introduces a broad variety of creative and arts-based methods for regeneration
and transformation that can be used in various educational settings. It harnesses the power
of creative and arts-based practices, which are increasingly seen as a means of expanding
future imaginaries and supporting the development of new scenarios of transformative change.
The toolkit was developed within the COST Action SHiFT Social Sciences and Humanities
for social transformation and climate change as an initiative of Working Group 3: Creative
Practices and Outreach. It comprises a selection of 68 creative methods brought together
in a collaborative effort by 124 authors from 31 countries and 6 continents. Its intention is
to comprise a valuable resource for educators, teachers, lecturers, community workers, and
change-makers who are aiming to empower their learners while providing competencies in
regenerative design, climate action, futures thinking, human-nature connection, wellbeing and
community engagement.
This toolkit is more than a collection of methods but a call to action and a comprehensive
resource developed through the synergistic efforts of contributors worldwide
Nonprofit-Organisationen im Wandel - Gestaltungsmöglichkeiten in Zeiten des Umbruchs
No full textWelche Gestaltungsmöglichkeiten und Handlungsoptionen haben Nonprofit Organisationen (NPOs) in Zeiten des Umbruchs? Wie kann Anpassung angesichts von Megatrends wie Digitalisierung und KI, demografischem Wandel und Klimawandel unter den Bedingungen von Personal- und Finanzierungsengpässen gelingen? Der Tagungsband versammelt 25 Beiträge zu vier thematischen Schwerpunkten: Herausforderungen des gesellschaftlichen Wandels für NPOs, Management im Wandel, Freiwilligenarbeit und Engagement sowie Genossenschaften, Vereine und Stiftungen im Wandel. Die Beiträge reflektieren aus einer interdisziplinären Perspektive aktuelle wissenschaftliche Erkenntnisse und liefern praxisrelevante Vorschläge für Transformationsprozesse in NPOs
ASTRABAX – Scientific results of two stratospheric balloon flights
No full textThe ASTRABAX experiment ("Aschaffenburg Stratospheric Balloon Experiment") uses a multimodal platform to study radiation exposures in the upper atmosphere. We present a modular approach to accommodate the numerous setups under the weight restriction of light unmanned free stratospheric balloon. The compartmental setup allows flexibility to address current research questions with low expenditure in costs, manpower and technology expertise. Its easy implementation is suitable for educational purposes of students in the fields of astronomy, astrobiology, and material research. Recently, two stratospheric balloons were flown to test the feasibility and connectivity of different building blocks in a temperature-controlled gondola, and to characterize the stratospheric radiation environment.The focus of the physical experiments is the observation of the UV-C spectral region using miniature UV-VIS spectrometers, and cosmic ray dosimetry with a Geiger counter. A second set of experiments assesses the effects of irradiation on polydopamine coatings intended for the application in space-born X-ray telescopes. The platform also contains samples of biological cells that are simultaneously exposed to low-dose radiation of different compositions of particle, X-ray and UV radiation. Post-flight nanoscopic measurements aim to examine changes in the spatial chromatin organization playing a crucial role in DNA-repair mechanisms. Investigations in such natural environment are of importance for high altitude atmospheric as well as space flights, for comparable exposures on other objects of the solar system and for astrobiology
3D compartmentilisation for analyzing functional long-range connectivity between brain regions
No full textPolydopamine – a bionic material and its potential applications for batteries
No full textPolydopamine (PDA) recently came into focus as an innovative material for applications in various technical fields, especially in the energy field it is considered for batteries as well as for supercapacitors. It is a very strong glue that sticks on almost everything, even under water: In nature, PDA is found in the byssal thread cuticles of mussels. The wet-resistant adhesion ability of PDA can be used in the treatment of separator membranes in batteries, but furthermore PDA is also considered as an electrode material for batteries. We have investigated thin layers of poly-dopamine with different methods including ellipsometry, tactile measurements of the layer thickness and in situ absorption measurements during the polymerization process
Performance Analysis in a Digital TETRA-Simulcast System
No full textIn radio communication of mission-critical
services, resilient solutions are strongly required to account for
public safety. Additionally to the cellular network based on the
professional mobile radio European standard TETRA, a digital
TETRA-simulcast system is proposed as a redundant network to
ensure area coverage in case of base station failure caused e.g. by
disasters. This paper presents a preliminary study about network
planning of a frequency-efficient digital TETRA-simulcast system
to be physically deployed in a hilly region of Germany. Coverage
as well as ray tracing analysis and channel modeling were
performed by simulations and prove to be helpful tools for the
systematic optimization of system performances, especially with
regard to the control of intersymbol interference in overlapping
zones