1,721,158 research outputs found
Prof. Dr. Timon Rabczuk, Vizepräsident für Forschung und Projekte
No full textIm Gespräch gibt Timon Rabczuk den Zuhörer*innen spannende Einblicke in die Präsidiumsarbeit und sein Engagement für Forschung und Projekte an der Bauhaus-Universität Weimar. Dabei geht es zum einen um das Verhältnis von Forschung und Gesellschaft, wie zum Beispiel den Aufbau von Open-Science-Strukturen. Zum anderen spricht er über die Rolle der Forschung an unserer Universität. Dabei geht es nicht nur um die Ausstattung der Forschung mit der notwendigen Infrastruktur, sondern auch um das Verhältnis von Forschung und Kunst. Als Profiluniversität versucht die Bauhaus-Universität den Spagat zwischen künstlerischer und forschender Praxis. Zudem sprechen die Moderator*innen mit Timon Rabczuk über das spannungsreiche Verhältnis zwischen Forschung und Lehre. Unsere Hosts: Franziska Fischer studierte bis 2024 Architektur an der Bauhaus-Universität Weimar und war während ihres Studiums Senatorin und Mitglied des Hochschulrates. Ludwig Lorenz studiert Computer Science for Digital Media im Master. Er engagiert sich unter anderem im Hochschulforum Digitalisierung, in der Transferorganisation KI macht Schule und als Mitglied der Studierendenvertretung der Universität. Weiterführende Links: Startprogramm des Präsidiums: https://www.uni-weimar.de/de/universitaet/struktur/universitaetsleitung/startprogramm-2023/ Struktur und Entwicklungsplan der Bauhaus-Universität Weimar (STEP): https://www.uni-weimar.de/de/universitaet/struktur/universitaetsleitung/step-2019-2025/ Förderung des wissenschaftlichen Nachwuchses: https://www.uni-weimar.de/de/universitaet/forschung-und-kunst/wissenschaftliche-karrieren/bauhaus-research-school/ Forschungsprojekt Schlierenverfahren zur Messung infektiöser Atemluft: https://www.uni-weimar.de/de/bau-und-umwelt/professuren/bauphysik/forschung/forschungsprojekte/titel/erweiterung-der-schlierenverfahren-zur-genaueren-messung-infektioeser-atemluft-und-darin-enthaltener
Prof. Dr. Timon Rabczuk, Vizepräsident für Forschung und Projekte
No full textIm Gespräch gibt Timon Rabczuk den Zuhörer*innen spannende Einblicke in die Präsidiumsarbeit und sein Engagement für Forschung und Projekte an der Bauhaus-Universität Weimar. Dabei geht es zum einen um das Verhältnis von Forschung und Gesellschaft, wie zum Beispiel den Aufbau von Open-Science-Strukturen. Zum anderen spricht er über die Rolle der Forschung an unserer Universität. Dabei geht es nicht nur um die Ausstattung der Forschung mit der notwendigen Infrastruktur, sondern auch um das Verhältnis von Forschung und Kunst. Als Profiluniversität versucht die Bauhaus-Universität den Spagat zwischen künstlerischer und forschender Praxis. Zudem sprechen die Moderator*innen mit Timon Rabczuk über das spannungsreiche Verhältnis zwischen Forschung und Lehre. Unsere Hosts: Franziska Fischer studierte bis 2024 Architektur an der Bauhaus-Universität Weimar und war während ihres Studiums Senatorin und Mitglied des Hochschulrates. Ludwig Lorenz studiert Computer Science for Digital Media im Master. Er engagiert sich unter anderem im Hochschulforum Digitalisierung, in der Transferorganisation KI macht Schule und als Mitglied der Studierendenvertretung der Universität. Weiterführende Links: Startprogramm des Präsidiums: https://www.uni-weimar.de/de/universitaet/struktur/universitaetsleitung/startprogramm-2023/ Struktur und Entwicklungsplan der Bauhaus-Universität Weimar (STEP): https://www.uni-weimar.de/de/universitaet/struktur/universitaetsleitung/step-2019-2025/ Förderung des wissenschaftlichen Nachwuchses: https://www.uni-weimar.de/de/universitaet/forschung-und-kunst/wissenschaftliche-karrieren/bauhaus-research-school/ Forschungsprojekt Schlierenverfahren zur Messung infektiöser Atemluft: https://www.uni-weimar.de/de/bau-und-umwelt/professuren/bauphysik/forschung/forschungsprojekte/titel/erweiterung-der-schlierenverfahren-zur-genaueren-messung-infektioeser-atemluft-und-darin-enthaltener
Optimization of fiber distribution in fiber reinforced composite by using NURBS functions
No full textThis research deals with the optimization of fiber distribution in continuum structures made of Fiber Reinforced Composite (FRC) by adopting an efficient gradient based optimization approach. Motivated by lack of non-heuristic and mesh independent optimization algorithm to obtain the optimum distribution of fiber through a design domain, Non-Uniform Rational B-Spline (NURBS) basis functions have been implemented to define continuous and smooth mesh independent fiber dispersion function as well as domain discretization. Thanks to higher order (here quadratic) NURBS basis functions along with their compact support, a drastic reduction in computational time has been obtained by increasing mesh size while the accuracy of the model is maintained. Moreover combination of NURBS with sensitivity based optimization method allows a fast convergence to optimum fiber dispersion layout. Minimization of elastic strain energy and maximization of fundamental frequency have been considered as objective functions for static and free vibration problems, respectively, to get the maximum fiber exploitation in the structural element. Nodal volume fraction of fiber was defined as the optimization design variable while a homogenization approach based on the random orientation of fibers in the matrix has been adopted. Some numerical examples related to the structural response under static loading as well as the free vibration behavior are finally conducted to demonstrate the capability and reliability of the model
Special Issue “Computational Methods for Fracture”
No full textThe prediction of fracture and material failure is of major importance for the safety and reliability of engineering structures and the efficient design of novel materials [...
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
A Meshfree Thin Shell for Arbitrary Evolving Cracks Based on An Extrinsic Basis
No full textThis paper proposes a meshfree method for arbitrary evolving cracks in thin shells. The approach is an improvement of the method proposed by Rabczuk T., Areias P.M.A., Belytschko T. (A meshfree thin shell for large deformation, finite strain and arbitrary evolving cracks, International Journal for Numerical Methods in Engineering). In the above cited paper, a shell was developed based on an intrinsic basis of third order completeness. Third order completeness was necessary to remove membrane locking. This resulted in the use of very large domains of influence that made the method computationally expensive. If the crack was modelled by a set of cracked particles where the crack is introduced through the entire domain of influence, a very fine resolution was needed to capture the crack path. We will modify the method and use an extrinsic basis to increase the order of completeness of the approximation. The advantage is the saving in computational cost due to smaller domain of influences and coarser resolutions to capture the crack path. The method is applied to several crack problems and shows good agreement with experimental results
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