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End date: 2019 × DDC: 620 × Has files: Yes × Type: conferenceObject ×

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    Microstructure evolution during annealing of an SPD- processed supersaturated Cu – 3 at.% Ag alloy
    (Bristol : IOP Publishing, 2014) Gubicza, J.; Hegedűs, Z.; Lábár, J.L.; Sarma, V.S.; Kauffmann, A.; Freudenberger, J.
    Supersaturated Cu-3 at.% Ag alloy was processed by rolling at liquid nitrogen temperature and subsequent annealing at 623 K up to 20 min. It was found that after annealing, an inhomogeneous solute atom distribution developed, since the Ag particles with small size and/or large specific interfacial energy were dissolved due to the Gibbs-Thomson effect. In the region where the solute concentration increased, a high dislocation density was retained in the Cu matrix even after annealing, while in the region where the Ag solute content did not increase, the dislocation density decreased by more than one order of magnitude. Therefore, in the cryorolled and annealed samples, heterogeneous microstructures were developed where both the dislocation density and the solute concentration varied considerably.
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    Ultrathin gold nanowires for transparent electronics: breaking barriers
    (Amsterdam : Elsevier, 2016) Gonzalez-Garcia, Lola; Maurer, Johannes H.M.; Reiser, Beate; Kanelidis, Ioannis; Kraus, Tobias
    Novel types of Transparent Conductive Materials (TCMs) based on metal nanostructures are discussed. Dispersed metal nanoparticles can be deposited from liquids with moderate thermal budgets to form conductive films that are suitable for thin-film solar cells, displays, touch screens, and nanoelectronics. We aim at new TCMs that combine high electrical conductivity with optical transparency and mechanical flexibility. Wet-processed films of randomly arranged metallic nanowires networks are commercially established and provide a relatively cost-effective, scalable production. Ultrathin gold nanowires (AuNWs) with diameters below 2 nm and high aspect ratios have recently become available. They combine mechanical flexibility, high optical transparency, and chemical inertness. AuNWs carry oleylamine capping ligands from synthesis that cause high contact resistances at their junctions. We investigated different annealing processes based on temperature and plasma treatment, to remove the ligands after deposition and to allow electrical conductivity. Their effect on the resulting nanostructure and on the material properties was studied. Scanning Electron Microscopy (SEM) and optical spectroscopy revealed changes in the microstructure for the different post-treatments. We found that the conductivity and the stability of the TCM depended strongly on its final microstructure. We demonstrate that the best results are obtained using H2-plasma treatment.
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    Einführung in das Forschungsinformationssystem VIVO : Hands-On-Lab auf dem 6. Deutschen Bibliothekartag
    (Erlangen : VDB, 2017) Barber, Martin; Hauschke, Christian; Walther, Tatiana
    VIVO, ein auf Linked-Data-Technologien basierendes Open-Source-Forschungsinformationssystem aus den USA, gewinnt zunehmend an Verbreitung in Europa. Um den Bekanntheitsgrad von VIVO im deutschsprachigen, bibliothekarischen Raum zu erhöhen, werden VIVO und die am Open Science Lab (OSL) der Technischen Informationsbibliothek (TIB) entwickelten Zusatzfeatures - wie zum Beispiel die Integration des Kerndatensatzes Forschung in VIVO - im Rahmen eines Hands-On-Labs dem Publikum vorgestellt. Unter Anleitung des OSL-Teams können die Teilnehmer der Session sich mit dem System praktisch auseinandersetzten sowie bestimmte Grundfunktionen und Features des Systems erproben. VIVO wird dazu im Vorfeld in einer Virtual Machine distribuiert und mit beispielhaften Stammdaten befüllt.
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    Discovery and efficient reuse of technology pictures using Wikimedia infrastructures. A proposal
    (Zenodo, 2016) Heller, Lambert; Blümel, Ina; Cartellieri, Simone; Wartena, Christian
    Multimedia objects, especially images and figures, are essential for the visualization and interpretation of research findings. The distribution and reuse of these scientific objects is significantly improved under open access conditions, for instance in Wikipedia articles, in research literature, as well as in education and knowledge dissemination, where licensing of images often represents a serious barrier. Whereas scientific publications are retrievable through library portals or other online search services due to standardized indices there is no targeted retrieval and access to the accompanying images and figures yet. Consequently there is a great demand to develop standardized indexing methods for these multimedia open access objects in order to improve the accessibility to this material. With our proposal, we hope to serve a broad audience which looks up a scientific or technical term in a web search portal first. Until now, this audience has little chance to find an openly accessible and reusable image narrowly matching their search term on first try - frustratingly so, even if there is in fact such an image included in some open access article.
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    TIB and East Asia Department at the TIB
    (Zenodo, 2017) Lu, Linna
    The "2017 International Conference on Integrated Development of Digital Publishing and Digital Libraries (CDPDL)" took place in Taiyuan from August 16-18,2017. This conference provides a platform for Chinese and foreign librarians, publishers and scholars to present the latest developments in Chinese library resources and technical innovations. In the early 1980s, with the growing interest in East Asia through research in academic and industrial fields, the TIB's Regional Department for East Asia was founded as an independent unit. The aim of the acquisition of the Regional Unit is to provide materials that not only provide an overview of current developments in East Asia but also provide detailed, specialized information. In comparison to most Asian departments of other libraries, the TIB's East Asia collection focuses not on Asian linguistics and humanities, but on modern literature in the field of technology and natural sciences. In order to reflect on the current state of research in East Asia and to communicate research and industry, our acquisition focuses on modern periodicals, academic journals and series from scientific and technical associations, reports from universities and research institutes. Exactly these special features were presented to the participants at this year's CDPDL. Many of our colleagues in the branch could thus get to know the TIB and the regional department better, especially in the country and the geographical area in which we have placed one of our main focuses of collection.