Erste Ergebnisse des DFG-geförderten Projekts NOA – Nachnutzung von Open-Access-Abbildungen

Abbildungen haben für die Visualisierung und das Verständnis von Forschungsergebnissen heute eine überragende Bedeutung. Open Access vervielfacht das Potenzial der Nachnutzung solcher Abbildungen, zum Beispiel in der Wikipedia, aber auch in der Forschungsliteratur, sowie in Materialien zur Lehre und Wissensvermittlung, wie digitalen Präsentationsfolien oder Unterrichtsblättern, für die eine Lizensierung von Bildmaterial oft eine Barriere darstellt. Während wissenschaftliche Publikationen durch standardisierte Indizes über Suchmaschinen und in bibliothekarischen Rechercheportalen gefunden und nachgenutzt werden können, fehlt ein vergleichbarer gezielter Zugriff auf die darin enthaltenen oder sie begleitenden Abbildungen. Daher besteht ein Bedarf nach Verfahren zur Sammlung und Erschließung solcher Abbildungen. In unserem Vortrag wollen wir die ersten sichtbaren Ergebnisse des DFG-geförderten Projekts NOA – Nachnutzung von Open-Access-Abbildungen vorstellen. Ziel des Projekts ist es, basierend auf der Infrastruktur von Wikimedia Commons und Wikidata, ein Verfahren zur automatischen Sammlung (Harvesting), Erschließung und Bereitstellung von ingenieurwissenschaftlichen Abbildungen aus einigen qualitätsgesicherten Open-Access-Journals zu entwickeln und als Index sowie Suchservice verfügbar zu machen. Arbeitspakete umfassen das Harvesting von Open-Access-Artikeln, die Aufbereitung und Erschließung des Textes sowie ggf. enthaltener Abbildungen

On the possibility to consider fullerene shell C60 as a conducting sphere

Correctness of the model representing the fullerene shell C60 as a conducting sphere has been analyzed. The static and dynamical polarizabilities of the molecule C60 have been calculated on the basis of experimental data on the photo-absorption cross- section of fullerene. It has been shown that the real C60 in the static electric field behaves most likely as a set of separate carbon atoms rather than as a conducting sphere and its static polarizability exceeds by more than two times that of conducting sphere.Comment: 5 pages, 2 figure

Towards a Model of Accelerated Project-Based Learning (PBL) for Innovative Technology Projects

An existing Engineering Technology (ET) framework of Project-Based Learning (PBL) was examined for structure and rigor as a springboard to propose a robust PBL model, guided by three research questions: (a) What is the extent to which self-directed learning (SDL) skills were applied by final-year ET students in PBL, as determined quantitatively through the Self-Directed Learning Readiness Scale (SDLRS-A(r))?; (b) How are self-directed learning (SDL) skills, project management (PM) efficiencies, and change leadership (CL) effectiveness applied in the implementation of ET capstone projects?; and, (c) What are the best practices to accelerate PBL by employing SDL skills, PM efficiencies, and CL effectiveness? The mixed methodology research was conducted in two phases: Phase 1--Quantitative and qualitative: The SDLRS-A(r) Survey incorporating a 58-item questionnaire, six demographic items, and three open-ended questions on change leadership/change processes was administered to 30 Senior Design students graduating from an ET program; and, Phase 2--Qualitative: In-depth, one-on-one interviews with six student leaders from eight diverse, innovative capstone projects, and six faculty advisors who had facilitated these projects. Using SPSS 24.0, the SDLRS-A(r) questionnaire assessed the 30 Senior Design students' SDL skills in project implementation, using factor analysis to ascertain and compare a priori evidence. Additionally, textual analytic software (NVivo 11) graphically analyzed responses to the three open-ended questions for the Senior Design students' understanding of change leadership/change processes of their capstone projects through the Fall, Winter, and Spring terms of 2015-2016. Similarly, the semi-structured, one-on-one PBL interviews of six student team leaders and six faculty advisors were iteratively analyzed using graphical textual analytic software, Leximancer 4.5. The quantitative and qualitative analyses of the primary data identified essential elements of an accelerated PBL model through enhanced SDL skills, streamlined PM efficiencies, and, dynamic CL effectiveness. This PBL model is geared to yielding optimal outcomes with minimal loss of time and resources in rapidly evolving, technological environments in 21st century higher education. The study concluded that such an accelerated PBL model could also minimize the employment gap, fuel students' self-motivation, enable skill-building, and instill a deep commitment to life-long learning--in a competitive, technology-infused, and information-intensive world.Ed.D., Educational Leadership and Management -- Drexel University, 201

Rechtliche Fragen bei der Nutzung von Abbildungen aus Open-Access-Publikationen

Die zunehmende Verfügbarkeit von Forschungsdaten eröffnet Forschenden neue Möglichkeiten, mit von Dritten erstellten Forschungsdaten zu arbeiten. Dieser Beitrag befasst sich mit der Frage, welche rechtlichen Rahmenbedingungen gelten, wenn diese nachgenutzten Forschungsdaten öffentlich verfügbar gemacht werden sollen. Im Speziellen geht der Artikel dabei auf Bildersuchmaschinen und das Veröffentlichen von Bildkorpora ein. Dabei wird dargestellt, dass es bei der öffentlichen Zugänglichmachung von unübersichtlichen Bildmengen keine hundertprozentige Sicherheit geben kann. Durch bestimmte Abwägungen und technische Mittel kann sich dieser aber angenähert werden

Semantic annotation for 3D cultural artefacts: MVP

A suite of tools for semantic annotation of 3D cultural artefacts is being developed as part of the NFDI4Culture project across several partner organisations (led by the Open Science lab at TIB, Hannover). Operating within Task area 1: Data capture and enrichment, the proposed toolchain focuses on the annotation of 3D data within a knowledge graph environment, so that 3D objects’ geometry, attendant metadata, as well as annotations remain searchable, while data interconnections are not lost

Optical response of C60_{60} and C70_{70} fullerenes:

Molecular exciton effects in the neutral and maximally doped C$_{60}$ (C$_{70}$) are considered using a tight binding model with long-range Coulomb interactions and bond disorder. By comparing calculated and observed optical spectra, we conclude that relevant Coulomb parameters for the doped cases are about half of those of the neutral systems. The broadening of absorption peaks is well simulated by the bond disorder model.Comment: Proceedings paper of ICSM9

Spectroscopic characterization of Al2O3-Ni selective absorbers for solar collectors

Cataloged from PDF version of article.Optical spectroscopy of electrochemically prepared Ni-pigmented aluminum oxide selective absorbers have been determined in the 200—20000 nm range. It was found that samples anodized under the same conditions and pigmented using nickel acetate resulted in better thermal emittance values when compared with nickel sulfate although both have comparable solar absorbance values. Electron spectroscopic investigation revealed that only a small fraction of Ni is present on the surface with an oxidation state of *#2. The O/Al ratio determined by XPS is larger than 1.5. This information together with the measured Al 2p Auger parameter indicated that the surfaces contain additional OH groups which was also confirmed by the presence of a broad hyrogen-bonded band in the region 3000—3400 cm~1 observed in the reflection—absorption IR spectra of these samples. ( 1998 Elsevier Science B.V. All rights reserved

Collaborative annotation and semantic enrichment of 3D media

A new FOSS (free and open source software) toolchain and associated workflow is being developed in the context of NFDI4Culture, a German consortium of research- and cultural heritage institutions working towards a shared infrastructure for research data that meets the needs of 21st century data creators, maintainers and end users across the broad spectrum of the digital libraries and archives field, and the digital humanities. This short paper and demo present how the integrated toolchain connects: 1) OpenRefine - for data reconciliation and batch upload; 2) Wikibase - for linked open data (LOD) storage; and 3) Kompakkt - for rendering and annotating 3D models. The presentation is aimed at librarians, digital curators and data managers interested in learning how to manage research datasets containing 3D media, and how to make them available within an open data environment with 3D-rendering and collaborative annotation features