@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}}, } @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}}, } @inbook{25847, author = {{Rumlich, Dominik and Matz, Frauke and Juchem-Grundmann, Constanze}}, booktitle = {{Sprache, Kulturen, Identitäten : Umbrüche durch Digitalisierung: 28. Kongress der Deutschen Gesellschaft für Fremdsprachenforschung. Würzburg, 25.-28. September 2019}}, editor = {{Eisenmann, Maria and Steinbock, Jeanine}}, location = {{Würzburg}}, pages = {{347--350}}, publisher = {{Schneider Verlag Hohengehren}}, title = {{{Freies Format 2: Nachwuchs-Café (reloaded): Auf dem Weg zur Professur...}}}, year = {{2021}}, } @article{26011, author = {{Hense, Dominik and Büngeler, Anne and Kollmann, Fabian and Hanke, Marcel and Orive, Alejandro and Keller, Adrian and Grundmeier, Guido and Huber, Klaus and Strube, Oliver I.}}, issn = {{1525-7797}}, journal = {{Biomacromolecules}}, pages = {{4084–4094}}, title = {{{Self-Assembled Fibrinogen Hydro- and Aerogels with Fibrin-like 3D Structures}}}, doi = {{10.1021/acs.biomac.1c00489}}, volume = {{22}}, year = {{2021}}, } @article{26012, abstract = {{Abstract Purpose Exhaustive cardiovascular load can affect neural processing and is associated with decreases in sensorimotor performance. The purpose of this study was to explore intensity-dependent modulations in brain network efficiency in response to treadmill running assessed from resting-state electroencephalography (EEG) measures. Methods Sixteen trained participants were tested for individual peak oxygen uptake (VO2 peak) and performed an incremental treadmill exercise at 50% (10 min), 70% (10 min) and 90% speed VO2 peak (all-out) followed by cool-down running and active recovery. Before the experiment and after each stage, borg scale (BS), blood lactate concentration (BLa), resting heartrate (HRrest) and 64-channel EEG resting state were assessed. To analyze network efficiency, graph theory was applied to derive small world index (SWI) from EEG data in theta, alpha-1 and alpha-2 frequency bands. Results Analysis of variance for repeated measures revealed significant main effects for intensity on BS, BLa, HRrest and SWI. While BS, BLa and HRrest indicated maxima after all-out, SWI showed a reduction in the theta network after all-out. Conclusion Our explorative approach suggests intensity-dependent modulations of resting-state brain networks, since exhaustive exercise temporarily reduces brain network efficiency. Resting-state network assessment may prospectively play a role in training monitoring by displaying the readiness and efficiency of the central nervous system in different training situations. }}, author = {{Büchel, Daniel and Sandbakk, Øyvind and Baumeister, Jochen}}, issn = {{1439-6319}}, journal = {{European Journal of Applied Physiology}}, pages = {{2423--2435}}, title = {{{Exploring intensity-dependent modulations in EEG resting-state network efficiency induced by exercise}}}, doi = {{10.1007/s00421-021-04712-6}}, year = {{2021}}, } @article{26013, abstract = {{Abstract Mobile Electroencephalography (EEG) provides insights into cortical contributions to postural control. Although changes in theta (4–8 Hz) and alpha frequency power (8–12 Hz) were shown to reflect attentional and sensorimotor processing during balance tasks, information about the effect of stance leg on cortical processing related to postural control is lacking. Therefore, the aim was to examine patterns of cortical activity during single-leg stance with varying surface stability. EEG and force plate data from 21 healthy males (22.43 ± 2.23 years) was recorded during unipedal stance (left/right) on a stable and unstable surface. Using source-space analysis, power spectral density was analyzed in the theta, alpha-1 (8–10 Hz) and alpha-2 (10–12 Hz) frequency bands. Repeated measures ANOVA with the factors leg and surface stability revealed significant interaction effects in the left (p = 0.045, ηp2 = 0.13) and right motor clusters (F = 16.156; p = 0.001, ηp2 = 0.41). Furthermore, significant main effects for surface stability were observed for the fronto-central cluster (theta), left and right motor (alpha-1), as well as for the right parieto-occipital cluster (alpha-1/alpha-2). Leg dependent changes in alpha-2 power may indicate lateralized patterns of cortical processing in motor areas during single-leg stance. Future studies may therefore consider lateralized patterns of cortical activity for the interpretation of postural deficiencies in unilateral lower limb injuries.}}, author = {{Büchel, Daniel and Lehmann, Tim and Ullrich, Sarah and Cockcroft, John and Louw, Quinette and Baumeister, Jochen}}, issn = {{0014-4819}}, journal = {{Experimental Brain Research}}, pages = {{1193--1202}}, title = {{{Stance leg and surface stability modulate cortical activity during human single leg stance}}}, doi = {{10.1007/s00221-021-06035-6}}, year = {{2021}}, } @article{26014, abstract = {{Whereas initial findings have already identified cortical patterns accompanying proprioceptive deficiencies in patients after anterior cruciate ligament reconstruction (ACLR), little is known about compensatory sensorimotor mechanisms for re-establishing postural control. Therefore, the aim of the present study was to explore leg dependent patterns of cortical contributions to postural control in patients 6 weeks following ACLR. A total of 12 patients after ACLR (25.1 ± 3.2 years, 178.1 ± 9.7 cm, 77.5 ± 14.4 kg) and another 12 gender, age, and activity matched healthy controls participated in this study. All subjects performed 10 × 30 s. single leg stances on each leg, equipped with 64-channel mobile electroencephalography (EEG). Postural stability was quantified by area of sway and sway velocity. Estimations of the weighted phase lag index were conducted as a cortical measure of functional connectivity. The findings showed significant group × leg interactions for increased functional connectivity in the anterior cruciate ligament (ACL) injured leg, predominantly including fronto−parietal [F(1, 22) = 8.41, p ≤ 0.008, η2 = 0.28], fronto−occipital [F(1, 22) = 4.43, p ≤ 0.047, η2 = 0.17], parieto−motor [F(1, 22) = 10.30, p ≤ 0.004, η2 = 0.32], occipito−motor [F(1, 22) = 5.21, p ≤ 0.032, η2 = 0.19], and occipito−parietal [F(1, 22) = 4.60, p ≤ 0.043, η2 = 0.17] intra−hemispherical connections in the contralateral hemisphere and occipito−motor [F(1, 22) = 7.33, p ≤ 0.013, η2 = 0.25] on the ipsilateral hemisphere to the injured leg. Higher functional connectivity in patients after ACLR, attained by increased emphasis of functional connections incorporating the somatosensory and visual areas, may serve as a compensatory mechanism to control postural stability of the injured leg in the early phase of rehabilitation. These preliminary results may help to develop new neurophysiological assessments for detecting functional deficiencies after ACLR in the future.}}, author = {{Lehmann, Tim and Büchel, Daniel and Mouton, Caroline and Gokeler, Alli and Seil, Romain and Baumeister, Jochen}}, issn = {{1662-5161}}, journal = {{Frontiers in Human Neuroscience}}, title = {{{Functional Cortical Connectivity Related to Postural Control in Patients Six Weeks After Anterior Cruciate Ligament Reconstruction}}}, doi = {{10.3389/fnhum.2021.655116}}, year = {{2021}}, } @inproceedings{26033, author = {{Zeipert, Henning and Johannesmann, Sarah and Nicolai, Marcel and Lugovtsova, Yevgeniya and Prager, Jens and Henning, Bernd}}, booktitle = {{Fortschritte der Akustik - DAGA 2021}}, location = {{Wien}}, title = {{{Quantifying the coupling strength of adhesively bonded materials by investigating mode repulsion regions}}}, year = {{2021}}, } @article{26039, author = {{Lahme, Simon and Bauer, Anna and Reinhold, Peter}}, journal = {{Phydid B, Didaktik der Physik, Beiträge zur DPG-Frühjahrstagung}}, pages = {{127--134}}, title = {{{Ansätze zur Diagnose und Förderung von Problemlösefähigkeiten in der Studieneingangsphase Physik}}}, year = {{2021}}, } @inproceedings{26050, author = {{Ködding, Patrick and Dumitrescu, Roman}}, booktitle = {{Digitalisierung souverän gestalten}}, editor = {{Hartmann, Ernst A.}}, publisher = {{Springer Vieweg}}, title = {{{Szenario-Technik mit digitalen Technologien (in Druck)}}}, year = {{2021}}, } @article{26173, author = {{Voswinkel, Dietrich}}, journal = {{ IOP Conference Series: Materials Science and Engineering}}, title = {{{Improving the Accuracy of Deep Drawn Fiber-Metal Laminate Parts by Preliminary Surface Treatment}}}, doi = {{10.1088/1757-899X/1190/1/012028}}, volume = {{1190}}, year = {{2021}}, } @inproceedings{26180, author = {{Michael, Jan and Grote, Eva-Maria and Pfeifer, Stefan and Rasor, Rik and Henke, Christian and Trächtler, Ansgar and Kaiser, Lydia}}, title = {{{Towards the Concept of a Digital Green Twin for a Sustainable Product Lifecycle}}}, year = {{2021}}, } @article{26191, author = {{Voswinkel, Dietrich and Sapli, Hüseyin and Kloidt, Dennis and Heggemann, Thomas and Homberg, Werner and Grydin, Olexandr and Schaper, Mirko}}, issn = {{1757-8981}}, journal = {{IOP Conference Series: Materials Science and Engineering}}, title = {{{Improving the Accuracy of Deep Drawn Fiber-Metal Laminate Parts by Preliminary Surface Treatment}}}, doi = {{10.1088/1757-899x/1190/1/012028}}, year = {{2021}}, } @inproceedings{26401, author = {{Förster, Magdalena and Rabe, Martin and Kühn, Arno and Dumitrescu, Roman}}, booktitle = {{Proceedings of the IEEE E-TEMS 2021}}, title = {{{Practical approach for the development of digital guidelines for smart cities}}}, year = {{2021}}, } @inproceedings{26402, author = {{Tekaat, Julian and Anacker, Harald and Dumitrescu, Roman}}, booktitle = {{ Proceedings of the 7th IEEE International Symposium on Systems Engineering}}, title = {{{The Paradigm of Design Thinking and Systems Engineering in the Design of Cyber-Physical Systems: A Systematic Literature Review}}}, year = {{2021}}, } @inproceedings{26403, author = {{Wilke, Daria and Schierbaum, Anja and Kaiser, Lydia and Dumitrescu, Roman}}, booktitle = {{Proceedings of the International Conference on Engineering Design, ICED 2021}}, location = {{Gothenburg, Sweden}}, title = {{{Need for Action for a Company-Wide Introduction of Systems Engineering in Machinery and Plant Engineering}}}, year = {{2021}}, }