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Additive manufacturing of Co-Ni-Ga high-temperature shape memory alloy - Processability 3 and phase transformation behavior
(2019)
Co-Ni-Ga high-temperature shape memory alloy is additively processed by selective laser melting for the first time. Reversiblemartensitic transformation of the as-built material is proven by differential scanning calorimetry. Microstructural analysis reveals a columnar-grained microstructure due to epitaxial solidification. Columnar-grained microstructures are characterized by a very low degree of constraints being beneficial for superior functional performance in numerous shape memory alloys. However, process-induced ...
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Grounding IPBES experts’ views on the multiple values of nature in epistemology, knowledge and collaborative science
(2019-12-18)
This study identifies and analyses the underlying assumptions of experts involved in the first author meeting (FAM) of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES)’s Values Assessment, and how they shape understandings of the multiple values of nature. We draw from survey data collected from 94 experts attending the FAM. Respondents self-report the tendencies and aims they bring to the assessment (i.e. motivation), the type and amount of evidence they require for knowledge ...
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Alpha-Kurse für alle
(2019)
Unter Inklusiver Bildung verstehen wir hier den gemeinsamen Unterricht behinderter und nichtbehinderter Menschen. Die Teilnehmenden in Alphabetisierungskursen und in Kursen zum Nachholen von Schulabschlüssen (Zweiter Bildungsweg) sind sehr heterogen. Menschen unterschiedlichen Alters, Geschlechts, Herkunft etc. oder mit unterschiedlichen Beeinträchtigungen nehmen an diesen Kursen teil. Alle haben unterschiedliche Lernstände und Gründe für die Teilnahme am Kurs und somit auch unterschiedliche Bedarfe. Wie wird Inklusive ...
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Effect of nanometric γ´-particles on the stress-induced martensitic transformation in ⟨001⟩-oriented Co49Ni21Ga30 shape memory alloy single crystals
(2019)
The effect of finely dispersed particles on the functional properties and morphology of thermally induced martensite in Co-Ni-Ga shape memory alloys has been already reported in literature, however, still important aspects are not fully understood. The current study focuses on the stress-induced martensitic transformation of solution-annealed, i.e. precipitate-free, and aged 〈001〉-oriented single crystals. In situ optical microscopy and neutron diffraction experiments show a significant influence of γ′-particles on ...
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Loving the mess: navigating diversity and conflict in social values for sustainability
(2019-08-24)
This paper concludes a special feature of Sustainability Science that explores a broad range of social value theoretical traditions, such as religious studies, social psychology, indigenous knowledge, economics, sociology, and philosophy. We introduce a novel transdisciplinary conceptual framework that revolves around concepts of ‘lenses’ and ‘tensions’ to help navigate value diversity. First, we consider the notion of lenses: perspectives on value and valuation along diverse dimensions that describe what values focus ...