Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Marcel Graf"'
Publikováno v:
MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, Vol 37, Pp 343-358 (2020)
Dieser Beitrag legt am Beispiel des von Prof. Dr. Dorothee M. Meister initiierten Projektes «E-Assessment NRW» dar, welche weitreichenden Herausforderungen es bei der Einführung von E-Assessments gibt. Dabei werden drei Handlungsfelder – Technik
Externí odkaz:
https://doaj.org/article/2fb2a8d1e5174ea39a1df70c51f5ff43
Publikováno v:
Zeitschrift für Hochschulentwicklung, Vol 15, Iss 1 (2020)
Veränderungsprozesse an Hochschulen werden mit klassischen Change-Management-Ansätzen nur unzureichend erfasst, da diese die organisationalen Strukturen im deutschen Hochschulwesen nicht genügend berücksichtigen. In dem Beitrag wird das theoretis
Externí odkaz:
https://doaj.org/article/b12862d9dc41463ea54a1f6e948b6b94
Autor:
Dagmar BUBLÍKOVÁ, Hana JIRKOVÁ, Kateřina RUBEŠOVÁ, Michal Pekovič, Julie VOLKMANNOVÁ, Marcel Graf
Publikováno v:
Acta Metallurgica Slovaca, Vol 25, Iss 2 (2019)
Various ways are sought today to increase mechanical properties of steels while maintaining their good strength and ductility. Besides effective alloying strategies, one method involves preserving a certain amount of retained austenite in a martensit
Externí odkaz:
https://doaj.org/article/911ff5551de643abbb0f451f46d5f99a
Autor:
Marcel Graf, Markus Bönn, Lasse Feldhahn, Florence Kurth, Thorsten E. E. Grams, Sylvie Herrmann, Mika Tarkka, Francois Buscot, Stefan Scheu
Publikováno v:
Royal Society Open Science, Vol 6, Iss 3 (2019)
Soil detritivores such as Collembola impact plant growth, tissue nutrient concentration and gene expression. Using a model system with pedunculate oak (Quercus robur) microcuttings that display a typical endogenous rhythmic growth with alternating sh
Externí odkaz:
https://doaj.org/article/44ec00f771764da9baa8873612f32d93
Autor:
Sebastian Härtel, Birgit Awiszus, Marcel Graf, Alexander Nitsche, Marcus Böhme, Martin F.-X. Wagner, Hana Jirkova, Bohuslav Masek
Publikováno v:
Metals, Vol 9, Iss 5, p 577 (2019)
This paper examines how the initial austenite grain size in quench and partitioning (Q-P) processes influences the final mechanical properties of Q-P steels. Differences in austenite grain size distribution may result, for example, from uneven heatin
Externí odkaz:
https://doaj.org/article/acf55c09c1774c968cf39495a5ab77d5
Publikováno v:
Metals, Vol 8, Iss 12, p 1009 (2018)
Additive manufacturing processes have been investigated for some years, and are commonly used industrially in the field of plastics for small- and medium-sized series. The use of metallic deposition material has been intensively studied on the labora
Externí odkaz:
https://doaj.org/article/ba98b5733adb42209e8c351d61d50f86
Autor:
Marcel Graf, Madlen Ullmann, Grzegorz Korpala, Hendrik Wester, Birgit Awiszus, Rudolf Kawalla, Bernd-Arno Behrens
Publikováno v:
Metals, Vol 8, Iss 12, p 996 (2018)
Developments in technology rely increasingly on the numerical simulation of single process steps up to whole process chains using commercially available or user-written software systems, mostly based on the finite element method (FEM). However, detai
Externí odkaz:
https://doaj.org/article/1ae9a1df4cf748bdbec0b1505aae038b
Autor:
Bernd-Arno Behrens, Alexander Chugreev, Birgit Awiszus, Marcel Graf, Rudolf Kawalla, Madlen Ullmann, Grzegorz Korpala, Hendrik Wester
Publikováno v:
Metals, Vol 8, Iss 2, p 140 (2018)
Increasing product requirements have made numerical simulation into a vital tool for the time- and cost-efficient process design. In order to accurately model hot forging processes with finite, element-based numerical methods, reliable models are req
Externí odkaz:
https://doaj.org/article/8576952dbccb46c093be0a871abefb58
Autor:
Rico Drehmann, Marcel Graf, Thomas Lampke, Pascal Colditz, Birgit Awiszus, Alexander List, Frank Gärtner
Publikováno v:
International Thermal Spray Conference.
Cold spraying has great potential for additive manufacturing, especially of oxidation-sensitive metals, because the material is not melted and significantly higher deposition rates can be achieved than with conventional additive manufacturing process
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75ad64c5d6803ff2b3265771dea68ea4
https://doi.org/10.31399/asm.cp.itsc2023p0258
https://doi.org/10.31399/asm.cp.itsc2023p0258
Publikováno v:
Nanomaterials for Sustainable Tribology ISBN: 9781003306276
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6385da1d2c9afe9806aa36df636b88ba
https://doi.org/10.1201/9781003306276-16
https://doi.org/10.1201/9781003306276-16
