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Suche nach „[Digital]“ hat 1166 Publikationen gefunden
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    DigitalI: Institut für Existenzgründung

    Buch (Monographie)

    Thomas Bartscher, R. Nissen

    Digital Target: Kompetenzmanagement für die Digitale Transformation

    2020

    DigitalI: Institut für Existenzgründung

    Buch (Monographie)

    Thomas Bartscher, R. Nissen

    Fluides Personalmanagement: Die Digitale Transformation als Herausforderung und Chance begreifen

    2020

    DigitalI: Institut für Existenzgründung

    Thomas Bartscher, R. Nissen

    Lernstrategie entwickeln – Kompetenzquellen entdecken. Mediendidaktische Lerneinheit des OPEN vhb-Kurses „Digitale Arbeitswelt. Herausforderungen und Chancen“

    2020

    DigitalI: Institut für Existenzgründung

    Thomas Bartscher, R. Nissen

    Landkarten für die digitale Kompetenz. Mediendidaktische Lerneinheit des OPEN vhb-Kurses „Digitale Arbeitswelt. Herausforderungen und Chancen“

    2020

    DigitalI: Institut für Existenzgründung

    Thomas Bartscher, R. Nissen

    Digitale Zukunftsfähigkeit. Mediendidaktische Lerneinheit des OPEN vhb-Kurses „Digitale Arbeitswelt. Herausforderungen und Chancen“

    2020

    DigitalI: Institut für Existenzgründung

    Thomas Bartscher, R. Nissen

    Digitale Basiskompetenzen. Mediendidaktische Lerneinheit des OPEN vhb-Kurses „Digitale Arbeitswelt. Herausforderungen und Chancen“

    2020

    DigitalF: Angewandte WirtschaftswissenschaftenS: TC Grafenau

    Vortrag

    Diane Ahrens

    Räumliche Unabhängigkeit Dank Digitalisierung

    Sommerkolloquium 2020 der Bayerischen Akademie Ländlicher Raum und Akademie für Politik und Zeitgeschehen der Hanns-Seidel-Stiftung „Corona und die große Transformation: Perspektiven für die ländlichen Räume?“, München

    2020

    DigitalNachhaltigF: Maschinenbau und MechatronikI: Fraunhofer AWZ CTMT

    Zeitschriftenartikel

    Gabriel Herl, Jochen Hiller, A. Maier

    Scanning trajectory optimisation using a quantitative Tuybased local quality estimation for robot-based X-ray computed tomography

    Nondestructive Testing and Evaluation, vol. (Published 21 June 2020), no. 6, pp. 1-17

    2020

    DOI: 10.1080/10589759.2020.1774579

    Abstract anzeigen

    Robotic CT systems allow complex scanning trajectories. This work presents a workflow to automatically calculate optimised scanning trajectories for robotic CT systems. In particular, as a local quality estimation, this work introduces a quantitative measure to quantify local reconstruction quality based on the Tuy conditions. The proposed method is tested in two summation experiments using an STL model of a motorcycle. In both experiments, a trajectory is calculated using a quantitative Tuy-based local quality estimation and the reconstruction result is then compared to reconstructions using conventional scanning trajectories. The comparison results indicate that the proposed approach automatically finds trajectories that enable 3D reconstructions with high image quality using much less projection data, which allows a significant reduction of scanning time.

    DigitalNachhaltigF: Maschinenbau und MechatronikI: Fraunhofer AWZ CTMT

    Zeitschriftenartikel

    A. Stock, Gabriel Herl, T. Sauer, Jochen Hiller

    Edge-preserving compression of CT scans using wavelets

    Insight - Non-Destructive Testing and Condition Monitoring (The British Institute of Non-Destructive Testing), vol. 62, no. 6, pp. 345-351

    2020

    DOI: 10.1784/insi.2020.62.6.345

    Abstract anzeigen

    This work addresses the subject of efficient storage of computed tomography (CT) data with an emphasis on the quality of surfaces. Industrial dimensional metrology often requires high measurement accuracy and it is shown that this is retained using wavelet-based compression methods. The applied techniques include a tensor product wavelet transform and soft wavelet shrinkage. In these tests, performed on real objects, dimensional CT measurements of compressed and uncompressed volumes were compared. The necessary storage space was reduced significantly with a negligible loss of accuracy. The storage space required for a multi-sphere phantom was decreased to 4.7% (from 638 MB to 30 MB), with an average deviation below 1 μm from the original volume.

    DigitalNachhaltigExtern

    Vortrag

    T. Heberholz, Andrey Prihodovsky, M. Nowottnick

    Einfluss eines abnormalen (CuNi)6Sn5/(NiCu)3Sn4-Schichtwachstums auf die Robustheit von bleifreien Zinn-Silber-Basis-Lotstellen bei Temperaturen oberhalb von 175 °C

    Fachtagung/Konferenz EBL 2020 - Elektronische Baugruppen und Leiterplatten, Fellbach

    2020

    DigitalNachhaltigExtern

    Zeitschriftenartikel

    Anton Schmailzl, Johannes Käsbauer, J. Martan, P. Honnerová, F. Schäfer, Maximilian Fichtl, T. Lehrer, L. Prušáková, J. Tesař, J. Skála, M. Honner

    Measurement of core temperature through semi-transparent polyamide 6 using scanner-integrated pyrometer in laser welding

    International Journal of Heat and Mass Transfer, vol. 146, no. January

    2020

    DOI: 10.1016/j.ijheatmasstransfer.2019.118814

    Abstract anzeigen

    Predicting the core temperature during welding is an ambitious aim in many research works. In this work, a 3D-scanner with integrated pyrometer is characterized and used to measure the temperature during quasi-simultaneous laser transmission welding of polyamide 6. However, due to welding in an overlap configuration, the heat radiation emitted from the joining zone of a laser transmission weld has to pass through the upper polymer, which is itself a semi-transparent emitter. Therefore, the spectral filtering of the heat radiation in the upper polymer is taken into account by calibrating the pyrometer for the measurement task. Thermal process simulations are performed to compare the temperature field with the measured temperature signal. The absorption coefficients of the polymers are measured, in order to get precise results from the computation. The temperature signals during welding are in good agreement with the computed mean temperature inside the detection spot, located in the joining area. This is also true for varying laser power, laser beam diameter and the carbon black content in the lower polymer. Both, the computed mean temperature and the temperature signal are representing the core temperature. In order to evaluate the spatial sensitivity of the measurement system, the emitted heat radiation from both polymers is calculated on basis of the computed temperature field. Hereby it is found, that more than 90 percent of the detected heat radiation comes from the joining area, which is a crucial information for contact-free temperature measurement tasks on semi-transparent polymers.

    DigitalNachhaltigExtern

    Vortrag

    Johannes Käsbauer, Anton Schmailzl, T. Loose, S. Hierl

    Potentials of the EFG-Method for Modeling Quasi-Simultaneous Laser Transmission Welding Considering the Melt Flow

    Simulationsforum 2019 Schweißen und Wärmebehandlung, Weimar

    2020

    DigitalNachhaltigExtern

    Vortrag

    Johannes Käsbauer, Anton Schmailzl, T. Loose, S. Hierl

    Thermo-Mechanical Modeling of Quasi-Simultaneous Laser Transmission Welding using LS-DYNA with Focus on Accuracy of Heat Input Calculation

    Technology Day 2020 - Plastics on the test rig, Traboch, Österreich

    2020

    DigitalNachhaltigExtern

    Zeitschriftenartikel

    Johannes Käsbauer, Anton Schmailzl, J. Prehm, T. Loose, S. Hierl

    Simulation of Quasi-Simultaneous Laser Transmission Welding of Plastics: Optimization of Material Parameters in Broad Temperature Range

    Procedia CIRP, vol. 94, pp. 737-741

    2020

    DOI: 10.1016/j.procir.2020.09.136

    Abstract anzeigen

    Thermo-mechanical simulation offers great opportunities to optimize welding processes of plastics. For realistic simulation, the temperature dependent mechanical properties need to be implemented from ambient temperature to temperatures above the flow temperature. Standard test methods are insufficient for characterization in the entire temperature range because close to the flow temperature the material is too soft for tensile tests and too stiff for rheometry. Therefore, an optimization strategy is developed, that determines unknown material parameters by testing in welding simulations. The unknown parameters are iteratively adjusted to minimize the mismatch between computed and measured set-paths. Thus, important process characteristics are calculated realistically, enabling the computer aided assessment of the weld quality.

    DigitalMobilF: Angewandte InformatikS: TC Plattling MoMo

    Beitrag (Sammelband oder Tagungsband)

    Nicki Bodenschatz, Markus Eider, Andreas Berl

    Mixed-Integer-Linear-Programming model for the charging scheduling of electric vehicle fleets

    Proceedings of the 2020 10th International Conference on Advanced Computer Information Technologies (ACIT) [September 6-8, 2020; Deggendorf]

    2020

    DOI: 10.1109/ACIT49673.2020.9208875

    Abstract anzeigen

    The number of electric vehicles is steadily increasing of the past few years. This transition to electric vehicles bears the challenge, to integrate the charging processes into the grid without overstressing it. To prevent this, research has tackled lately the scheduling of electric vehicle charging. Especially the charging of electric vehicle fleets is in the focus of research. There are already different solution approaches to increase the grid stability, to increase the intake of locally produced renewable energy or simply to reduce the cost. However, all these solution approaches use different mathematical models with different parameters to represent the charging scheduling problem. This results in the problem that each model is applicable for a special use case only, other use cases might need other parameters for the scheduling of the electric vehicle fleet. To ease this problem, this paper provides a detailed mathematical model for the cost minimization of a general electric fleet in the form of a mixed-integer-linearprogram. In order to do this, the paper shows that different research approaches use different parameters in their solutions. Afterwards, the paper presents a general overview of technical limitations for the electric fleets. On foundation of these limitations a mixed-integer-linear-program model for a wide range of electric fleets is established. Also, the paper provides options to extend the model in order to improve the result of an optimal schedule.

    DigitalNachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Melanie Piser, Sebastian Wöllmann

    Digitale Partizipation als Prozessbeschleuniger für öffentliche Projekte - Bürgerbeteiligung im Projekt ALIA in der Gemeinde Weiherhammer

    Posterpräsentation

    INUAS International Conference 2020: Ressourcen - Zeit, Raum, Energie, Material (INUAS-Konferenzreihe - Urbane Transformationen: Wohnen, Ressourcen, Öffentliche Räume), München

    2020

    DigitalNachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Melanie Piser, Sebastian Wöllmann

    Digitale Partizipation von FörderschülerInnen zur sozial und materiell nachhaltigen Gestaltung des Baubestands - Chancen digitaler Beteiligung von SchülerInnen am Beispiel der Schulhaussanierung des Rupert-Egenberger-Förderschulzentrums in der Stadt Amberg/Opf.

    Posterpräsentation

    INUAS International Conference 2020: Ressourcen - Zeit, Raum, Energie, Material (INUAS-Konferenzreihe - Urbane Transformationen: Wohnen, Ressourcen, Öffentliche Räume), München

    2020

    DigitalNachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Melanie Piser, Sebastian Wöllmann

    Digitale Partizipation als Prozessbeschleuniger für öffentliche Projekte - Bürgerbeteiligung im Projekt ALIA in der Gemeinde Weiherhammer

    INUAS International Conference 2020: Ressourcen - Zeit, Raum, Energie, Material (INUAS-Konferenzreihe - Urbane Transformationen: Wohnen, Ressourcen, Öffentliche Räume), München

    2020

    DigitalNachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Melanie Piser, Sebastian Wöllmann

    Digitale Partizipation von FörderschülerInnen zur sozial und materiell nachhaltigen Gestaltung des Baubestands - Chancen digitaler Beteiligung von SchülerInnen am Beispiel der Schulhaussanierung des Rupert-Egenberger-Förderschulzentrums in der Stadt Amberg/Opf.

    INUAS International Conference 2020: Ressourcen - Zeit, Raum, Energie, Material (INUAS-Konferenzreihe - Urbane Transformationen: Wohnen, Ressourcen, Öffentliche Räume), München

    2020

    DigitalNachhaltigF: Angewandte InformatikS: TC Freyung

    Vortrag

    Melanie Piser, Sebastian Wöllmann, Roland Zink

    Adolescents in Spatial Planning - A Digital Participation Platform for Smart Environmental and Democratic Education in Schools

    Video presentation

    21st Annual International Digital Landscape Architecture Conference 2020 (DLA), All-virtual online event (on-site conference at Harvard GSD, Boston, MA, USA cancelled)

    2020