@article{24283, author = {{Malatyali, Hatice and Schöppner, Volker and Rabeneck, Nils and Hanselle, Felix and Austermeier, Laura and Karch, David}}, issn = {{2690-3857}}, journal = {{SPE Polymers}}, pages = {{145--152}}, title = {{{A model for the carbon fiber breakage along the twin‐screw extruder}}}, doi = {{10.1002/pls2.10040}}, year = {{2021}}, } @inproceedings{24315, author = {{Malatyali, Hatice and Schöppner, Volker and Lochbaum, Ella and Bomm, Igor and Hanselle, Felix}}, booktitle = {{SPE ANTEC}}, location = {{USA}}, title = {{{The Influence of Process Conditions on the Fiber Length Reduction for Recycled Carbon Fibers}}}, year = {{2021}}, } @inproceedings{24316, author = {{Malatyali, Hatice and Schöppner, Volker and Akar, Seyit Ali and Hanselle, Felix and Austermeier, Laura}}, booktitle = {{SPE ANTEC}}, title = {{{Reproducibility analysis of fiber length measurements during processing with twin screw extruders}}}, year = {{2021}}, } @article{24335, author = {{Hoffmann, Christin and Hoppe, Julia Amelie and Ziemann, Niklas}}, journal = {{PloS one}}, number = {{8}}, pages = {{e0256490}}, title = {{{The Hare and the Hedgehog: Empirical evidence on the relationship between the individual Pace of Life and the speed-accuracy continuum}}}, doi = {{https://doi.org/10.1371/journal.pone.0256490}}, volume = {{16}}, year = {{2021}}, } @inbook{24371, author = {{Krebs, Benjamin and Wehner, Marius Claus}}, booktitle = {{The Routledge companion to talent management}}, editor = {{Tarique, Ibraiz}}, pages = {{539--555}}, publisher = {{Routledge}}, title = {{{The relationship between talent management and individual and organizational performance}}}, year = {{2021}}, } @misc{24372, author = {{Gevers, Karina and Schöppner, Volker}}, booktitle = {{K-Zeitung}}, keywords = {{Infrarotschweißen, Glasfaserverstärkte Kunststoffe, Lebensdauer, Langzeitbelastung}}, number = {{1-2}}, pages = {{19}}, title = {{{Lebensdauer vorhersagen?}}}, year = {{2021}}, } @inproceedings{24382, author = {{Gevers, Karina and Schöppner, Volker and Hüllermeier, Eyke}}, location = {{online}}, title = {{{Heated tool butt welding of two different materials – Established methods versus artificial intelligence}}}, year = {{2021}}, } @inproceedings{24389, author = {{Arndt, Theresa and Schöppner, Volker}}, title = {{{Development of scale up rules for quasi-simultaneous laser transmission welding of thermoplastics}}}, year = {{2021}}, } @inproceedings{24426, author = {{Urbanek, Stefan and Pauline, Frey and Magerkohl, Sebastian and Zimmer, Detmar and Tasche, Lennart and Schaper, Mirko and Ponick, Bernd}}, keywords = {{Elektromotor, Elektromaschine, Additive Fertigung, AF, AM, Additive Manufacturing, DMRC, KAt}}, location = {{Connecticut, USA}}, title = {{{Design and Experimental Investigation of an Additively Manufactured PMSM Rotor}}}, doi = {{10.1109/IEMDC47953.2021.9449566}}, year = {{2021}}, } @inproceedings{24427, author = {{Magerkohl, Sebastian and Brüggemann, Jan-Peter}}, title = {{{3D-Druck in der industriellen Anwendung - Funktions- und fertigungsgerechte Konstruktion mit additiver Fertigung (Vortrag)}}}, year = {{2021}}, } @inproceedings{24441, author = {{Frank, Maximilian and Schöppner, Volker}}, booktitle = {{ANTEC® 2021}}, title = {{{DEVELOPMENT OF A NEW METHOD TO EVALUATE THE DISTRIBUTIVE MIXING QUALITY BASED ON THE PARTICLE TRACKING METHOD AND THE DELAUNAY TRIANGULATION}}}, year = {{2021}}, } @article{24508, abstract = {{Liquid atomization determines the initial conditions for flame formation and particle synthesis. Without a stable flame, high droplet velocities and thus short droplet residence time in the flame may lead to droplets being injected into an extinguished flame, which influences synthesis and final particle output. An experimental investigation of spray formation and flame stability is performed through high-speed visualization. Targeted variation of nozzle geometry is applied to improve spray-flame interaction and compared to a standardized burner. Timescales of spray density and flame fluctuations are quantified and compared, where the latter were significantly larger and hence not correlated. Instead, dispersion gas forms a barrier between spray phase and pilot flame; hence, ignition depends on large liquid lumps with high radial momentum to break through the dispersion gas for spray ignition. Angling of dispersion gas flow increases radial shear and turbulence and leads to refined atomization and improved flame stability. To investigate the nozzle influence on particle formation, particle characteristics are examined by online and offline analytics with focus on particle structures and product purity. The modified nozzle produced smaller primary particle sizes, thus indicating a sensitivity of sintering dominance on the nozzle geometry. Impurities impact the examination of particle structures and general particle functionality. Carbon contamination was apparent in synthesized particles and also indicated sensitivity to nozzle geometry. Discrepancies to literature data are discussed regarding differences in flame activity and droplet characteristics. The report highlights, how product characteristics can differ crucially due to changes in nozzle geometry despite comparable operating conditions.}}, author = {{Bieber, M. and Al-Khatib, M. and Fröde, F. and Pitsch, H. and Reddemann, M. A. and Schmid, H-J. and Tischendorf, R. and Kneer, R.}}, issn = {{0723-4864}}, journal = {{Experiments in Fluids}}, title = {{{Influence of angled dispersion gas on coaxial atomization, spray and flame formation in the context of spray-flame synthesis of nanoparticles}}}, doi = {{10.1007/s00348-021-03196-6}}, year = {{2021}}, } @inproceedings{24528, author = {{Hopp, Matthias and Mühlhoff, Frederik Marvin}}, booktitle = {{79th Annual Technical Conference of the Society of Plastics Engineers (ANTEC)}}, title = {{{Separation of Multi-Component Parts for Mechanical Recycling – An Approach to Produce Hard-Soft Combinations with a Better Recyclability}}}, year = {{2021}}, } @inproceedings{24534, author = {{zur Heiden, Philipp and Priefer, Jennifer}}, booktitle = {{Pre-Conference 16th International Congress on Wirtschaftsinformatik at Universität Duisburg-Essen}}, editor = {{Breitner, Michael H. and Lehnhoff, Sebastian and Nieße, Astrid and Staudt, Philipp and Weinhardt, Christof and Werth, Oliver}}, location = {{Universität Duisburg-Essen}}, publisher = {{BIS-Verlag der Carl von Ossietzky Universität Oldenburg}}, title = {{{Transitioning to Condition-Based Maintenance on the Distribution Grid: Deriving Design Principles from a Qualitative Study}}}, year = {{2021}}, } @inbook{24539, author = {{Tönnies, Merle}}, booktitle = {{Mentalities and Materialities: Essays in Honour of Jürgen Kamm}}, editor = {{Jacobi, Philip and Pankratz, Anette}}, pages = {{149--163}}, publisher = {{Königshausen & Neumann}}, title = {{{Constructions of a National Threat: Contextualising the Rhetorical Management of the COVID-19 Pandemic in Britain}}}, year = {{2021}}, } @article{24549, author = {{Hoffmann, Christin and Hoppe, Julia Amelie and Ziemann, Niklas}}, issn = {{0921-8009}}, journal = {{Ecological Economics}}, title = {{{Faster, harder, greener? Empirical evidence on the role of the individual Pace of Life for productivity and pro-environmental behavior}}}, doi = {{10.1016/j.ecolecon.2021.107212}}, volume = {{191}}, year = {{2021}}, } @misc{24556, author = {{Moritzer, Elmar and Hecker, Felix and Hirsch, André}}, booktitle = {{Kunststoffe}}, number = {{9/2021}}, pages = {{88--90}}, title = {{{Kleine Tropfen, große Wirkung}}}, year = {{2021}}, } @article{24589, abstract = {{Additive manufacturing, e.g. by laser powder bed fusion (LPBF), is very attractive for lightweight constructions, as complex and stress-optimised structures integrating multiple functions can be produced within one process. Unfortunately, high strength AlZnMgCu alloys tend to hot cracking during LPBF and thus have not so far been applicable. In this work the melting and solidification behaviour of AlZnMgCu alloy powder variants with particle surface inoculation was analysed by Differential Fast Scanning Calorimetry. The aim is to establish a method that makes it possible to assess powder modifications in terms of their suitability for LPBF on a laboratory scale requiring only small amounts of powder. Therefore, solidification undercooling is evaluated at cooling rates relevant for LPBF. A method for the temperature correction and normalisation of the DFSC results is proposed. Two ways of powder modification were tested for the powder particles surface inoculation by titanium carbide (TiC) nanoparticles: via wet-chemical deposition and via mechanical mixing. A low undercooling from DFSC correlates with a low number of cracks of LPBF-manufactured cubes. It appears that a reduced undercooling combined with reduced solidification onset scatter indicates the possibility of crack-free LPBF of alloys that otherwise tend to hot cracking.}}, author = {{Zhuravlev, Evgeny and Milkereit, Benjamin and Yang, Bin and Heiland, Steffen and Vieth, Pascal and Voigt, Markus and Schaper, Mirko and Grundmeier, Guido and Schick, Christoph and Kessler, Olaf}}, issn = {{0264-1275}}, journal = {{Materials & Design}}, keywords = {{Aluminium alloy 7075, Differential fast scanning calorimetry, Solidification, Undercooling, Additive manufacturing}}, title = {{{Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry}}}, doi = {{10.1016/j.matdes.2021.109677}}, year = {{2021}}, } @article{24719, author = {{M. Zahera, Hamada and Jalota, Rricha and Ahmed Sherif, Mohamed and Ngonga Ngomo, Axel-Cyrille}}, journal = {{{IEEE} Access}}, pages = {{118861--118870}}, title = {{{I-AID: Identifying Actionable Information From Disaster-Related Tweets}}}, doi = {{10.1109/ACCESS.2021.3107812}}, volume = {{9}}, year = {{2021}}, } @article{24720, author = {{Hogan, Aidan and Blomqvist, Eva and Cochez, Michael and d'Amato, Claudia and de Melo, Gerard and Guti{\'{e}}rrez, Claudio and Kirrane, Sabrina and Emilio Labra Gayo, Jos{\'{e}} and Navigli, Roberto and Neumaier, Sebastian and Ngonga Ngomo, Axel-Cyrille and Polleres, Axel and M. Rashid, Sabbir and Rula, Anisa and Schmelzeisen, Lukas and F. Sequeda, Juan and Staab, Steffen and Zimmermann, Antoine}}, journal = {{{ACM} Comput. Surv.}}, number = {{4}}, pages = {{71:1--71:37}}, title = {{{Knowledge Graphs}}}, doi = {{10.1145/3447772}}, volume = {{54}}, year = {{2021}}, }