@article{41551, author = {{Fuchs, Christian}}, journal = {{国外社会科学前沿 (Studies on Foreign Social Sciences)}}, pages = {{73--94}}, title = {{{数字时代的资本主义、父权制、奴隶制与种族主义}}}, volume = {{9}}, year = {{2020}}, } @article{42484, author = {{Fuchs, Christian}}, journal = {{Das Argument}}, pages = {{254--264}}, title = {{{Interview mit Christian Fuchs: »Der Sozialismus ist keine App und kann nicht aus dem Internet heruntergeladen werden«. Marx’ Vision der befreiten Gesellschaft bleibt im digitalen Zeitalter aktuell}}}, volume = {{335}}, year = {{2020}}, } @article{42486, author = {{Fuchs, Christian}}, journal = {{MATRIZes}}, number = {{2}}, pages = {{41--73}}, title = {{{Vida e comunicação cotidianas no capitalism da coronavirus}}}, volume = {{14}}, year = {{2020}}, } @article{25901, abstract = {{Thermally stabilized and subsequently carbonized nanofibers are a promising material for many technical applications in fields such as tissue engineering or energy storage. They can be obtained from a variety of different polymer precursors via electrospinning. While some methods have been tested for post-carbonization doping of nanofibers with the desired ingredients, very little is known about carbonization of blend nanofibers from two or more polymeric precursors. In this paper, we report on the preparation, thermal treatment and resulting properties of poly(acrylonitrile) (PAN)/poly(vinylidene fluoride) (PVDF) blend nanofibers produced by wire-based electrospinning of binary polymer solutions. Using a wide variety of spectroscopic, microscopic and thermal characterization methods, the chemical and morphological transition during oxidative stabilization (280 °C) and incipient carbonization (500 °C) was thoroughly investigated. Both PAN and PVDF precursor polymers were detected and analyzed qualitatively and quantitatively during all stages of thermal treatment. Compared to pure PAN nanofibers, the blend nanofibers showed increased fiber diameters, strong reduction of undesired morphological changes during oxidative stabilization and increased conductivity after carbonization.}}, author = {{Wortmann, Martin and Frese, Natalie and Mamun, Al and Trabelsi, Marah and Keil, Waldemar and Büker, Björn and Javed, Ali and Tiemann, Michael and Moritzer, Elmar and Ehrmann, Andrea and Hütten, Andreas and Schmidt, Claudia and Gölzhäuser, Armin and Hüsgen, Bruno and Sabantina, Lilia}}, issn = {{2079-4991}}, journal = {{Nanomaterials}}, title = {{{Chemical and Morphological Transition of Poly(acrylonitrile)/Poly(vinylidene Fluoride) Blend Nanofibers during Oxidative Stabilization and Incipient Carbonization}}}, doi = {{10.3390/nano10061210}}, year = {{2020}}, } @article{25899, abstract = {{Large Co-MOF-74 crystals of a few hundred micrometers were prepared by solvothermal synthesis, and their structure and morphology were characterized by scanning electron microscopy (SEM), IR, and Raman spectroscopy. The hydrothermal stability of the material up to 60 °C at 93% relative humidity was verified by temperature-dependent XRD. Proton conductivity was studied by impedance spectroscopy, using a single crystal. By varying the relative humidity (70–95%), temperature (21–60 °C), and orientation of the crystal relative to the electrical potential, it was found that proton conduction occurs predominantly through the linear, unidirectional (1D) micropore channels of Co-MOF-74, and that water molecules inside the channels are responsible for the proton mobility by a Grotthuss-type mechanism.}}, author = {{Javed, Ali and Strauss, Ina and Bunzen, Hana and Caro, Jürgen and Tiemann, Michael}}, issn = {{2079-4991}}, journal = {{Nanomaterials}}, title = {{{Humidity-Mediated Anisotropic Proton Conductivity through the 1D Channels of Co-MOF-74}}}, doi = {{10.3390/nano10071263}}, year = {{2020}}, } @article{38059, abstract = {{Advances in EEG filtering algorithms enable analysis of EEG recorded during motor tasks. Although methods such as artifact subspace reconstruction (ASR) can remove transient artifacts automatically, there is virtually no knowledge about how the vigor of bodily movements affects ASRs performance and optimal cut-off parameter selection process. We compared the ratios of removed and reconstructed EEG recorded during a cognitive task, single-leg stance, and fast walking using ASR with 10 cut-off parameters versus visual inspection. Furthermore, we used the repeatability and dipolarity of independent components to assess their quality and an automatic classification tool to assess the number of brain-related independent components. The cut-off parameter equivalent to the ratio of EEG removed in manual cleaning was strictest for the walking task. The quality index of independent components, calculated using RELICA, reached a maximum plateau for cut-off parameters of 10 and higher across all tasks while dipolarity was largely unaffected. The number of independent components within each task remained constant, regardless of the cut-off parameter used. Surprisingly, ASR performed better in motor tasks compared with non-movement tasks. The quality index seemed to be more sensitive to changes induced by ASR compared to dipolarity. There was no benefit of using cut-off parameters less than 10.}}, author = {{Anders, Phillipp and Müller, Helen Martha and Skjæret-Maroni, Nina and Vereijken, Beatrix and Baumeister, Jochen}}, issn = {{0140-0118}}, journal = {{Medical & Biological Engineering & Computing}}, keywords = {{Computer Science Applications, Biomedical Engineering}}, number = {{11}}, pages = {{2673--2683}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{The influence of motor tasks and cut-off parameter selection on artifact subspace reconstruction in EEG recordings}}}, doi = {{10.1007/s11517-020-02252-3}}, volume = {{58}}, year = {{2020}}, } @article{32436, author = {{Lehmann, Tim and Büchel, Daniel and Cockcroft, John and Louw, Quinette and Baumeister, Jochen}}, issn = {{0306-4522}}, journal = {{Neuroscience}}, keywords = {{General Neuroscience}}, pages = {{63--72}}, publisher = {{Elsevier BV}}, title = {{{Modulations of Inter-Hemispherical Phase Coupling in Human Single Leg Stance}}}, doi = {{10.1016/j.neuroscience.2020.01.029}}, volume = {{430}}, year = {{2020}}, } @misc{42929, author = {{Matzner, Tobias and Heesen, Jessica and Grundwald, Armin and Roßnagel, Alexander}}, booktitle = {{der Plattform Lernende Systeme}}, title = {{{Ethik-Briefing. Leitfaden für eine verantwortungsvolle Entwicklung und Anwendung von KI-Systemen}}}, year = {{2020}}, } @misc{42931, author = {{Matzner, Tobias}}, booktitle = {{Medium.com}}, title = {{{Digital ist anders — Über eine Universität ohne Präsenzlehre}}}, year = {{2020}}, } @inbook{42905, author = {{Matzner, Tobias}}, booktitle = {{Die dunklen Seiten des Konsums – Alte Probleme, neue Herausforderungen}}, editor = {{Heidbrink, Ludger and Gröppel-Klein, Andrea}}, publisher = {{Nomos}}, title = {{{Mediensucht? Über die Medikalisierung der Mediennutzung in Suchtdebatten}}}, year = {{2020}}, } @article{28168, author = {{Schulz, Christian and Matzner, Tobias}}, journal = {{Navigationen}}, number = {{2}}, title = {{{Feed the Interface – Social-Media-Feeds und filternde Schwellen}}}, volume = {{20}}, year = {{2020}}, } @inproceedings{39404, author = {{Lange, Sven and Schroder, Dominik and Hedayat, Christian and Hangmann, Christian and Otto, Thomas and Hilleringmann, Ulrich}}, booktitle = {{2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE}}, publisher = {{IEEE}}, title = {{{Investigation of the Surface Equivalence Principle on a Metal Surface for a Near-Field to Far-Field Transformation by the NFS3000}}}, doi = {{10.1109/emceurope48519.2020.9245697}}, year = {{2020}}, } @inproceedings{39897, author = {{Hilleringmann, Ulrich}}, isbn = {{2863322214}}, publisher = {{IEEE}}, title = {{{27th European Solid-State Device Research Conference}}}, doi = {{10.1109/essderc.1997}}, year = {{2020}}, } @inproceedings{39413, author = {{Hangmann, Christian and Hedayat, Christian and Hilleringmann, Ulrich}}, booktitle = {{2019 17th IEEE International New Circuits and Systems Conference (NEWCAS)}}, publisher = {{IEEE}}, title = {{{Designing Mixed-Signal PLLs regarding Multiple Requirements taking Non-Ideal Effects into Account}}}, doi = {{10.1109/newcas44328.2019.8961261}}, year = {{2020}}, } @inproceedings{39410, author = {{Lange, Sven and Schroder, Dominik and Hedayat, Christian and Otto, Thomas and Hilleringmann, Ulrich}}, booktitle = {{2019 17th IEEE International New Circuits and Systems Conference (NEWCAS)}}, publisher = {{IEEE}}, title = {{{Inductive Locating Method to Locate Miniaturized Wireless Sensors within Inhomogeneous Dielectrics}}}, doi = {{10.1109/newcas44328.2019.8961227}}, year = {{2020}}, } @inproceedings{19502, author = {{Hetkämper, Tim and Krumme, Matthias and Dreiling, Dmitrij and Claes, Leander}}, booktitle = {{SEFI 48th Annual Conference Proceedings - Engaging Engineering Education}}, location = {{Enschede}}, pages = {{1309--1313}}, publisher = {{SEFI}}, title = {{{A modular, scalable open-hardware platform for project-based laboratory courses in electrical engineering studies}}}, year = {{2020}}, } @inbook{43145, author = {{Dehmel, Lukas and Zick, Sebastian }}, booktitle = {{Praxistheoretische Perspektiven in der Medienpädagogik}}, editor = {{Bettinger, Patrick and Hugger, Kai-Uwe }}, pages = {{179--196}}, publisher = {{Springer VS}}, title = {{{Das Smartphone in der berufsvorbereitenden Bildung junger Erwachsener. Empirische Erkundungen aus praxistheoretischer Perspektive}}}, doi = {{https://doi.org/10.1007/978-3-658-28171-7_10 }}, year = {{2020}}, } @article{43150, author = {{Dehmel, Lukas}}, journal = {{Zeitschrift MedienPädagogik 37}}, pages = {{249--264}}, title = {{{Medienpädagogisches Erwachsenenbildungspersonal und Mediatisierung. Konzeptionelle Überlegungen zur theoretischen Erfassung biografischer Bearbeitungsprozesse}}}, doi = {{https://doi.org/10.21240/mpaed/37/2020.07.13.X }}, year = {{2020}}, } @article{43149, author = {{Dehmel, Lukas and Burgfeld-Meise, Bianca }}, journal = {{MerzWissenschaft}}, number = {{6}}, pages = {{38--47}}, title = {{{Vergissmeinnicht! Self-Tracking-Apps auf dem Smartphone als Erinnerungsräume junger Erwachsener}}}, volume = {{64}}, year = {{2020}}, } @article{43160, abstract = {{Refill friction stir spot welding (RFSSW) is a highly flexible and promising solid-state joining method for aluminium alloys. Alternatively, resistance spot welding (RSW) can be stated as an appropriate joining method which can be automated and used within a high-volume production due to short process times. Both processes do not need any additional elements and a flat surface on both sides of the joints can be realised. In order to meet the modern requirements for crash safety and structural stiffness, thermal and mechanical joining methods are mainly combined by using single-component epoxy resin adhesives. Due to an insufficient knowledge about the application of both thermal joining methods for the abovementioned material combinations combined with additional adhesives, deeper investigations were done regarding the interactions of the polymers and the joining processes. Starting with a brief presentation of the boundary conditions of the investigations and the refill friction stir spot welding and resistance spot welding of high-strength aluminium alloys with sheet thicknesses bigger than 5.8 mm, the paper introduces the process-related joint properties of friction-based and resistance-based welded joints. Afterwards, the paper discusses the influences of the process parameter on the metallographic joint formation and load-bearing capacities for a selected two-sheet and four-sheet material combination. When combining the spot welding technologies with adhesives, the process parameters of the RFSSW process have to be adapted for the two-sheet combination by adding a squeeze-out step, while for RSW, just the preholding time has to be increased. Different challenges for both joining methods are shown. For RFSSW, the gap formation has to be considered when welding big total sheet thicknesses, while for RSW, the shape of the weld nugget is more important for an appropriate joint performance. Additionally, process optimisations for less adhesive incineration will be discussed for both joining processes, and the influences of the adhesive on the joint formation will be addressed with the help of load-bearing capacity evaluations. The paper closes with specific recommendations for the realisation of refill friction stir and resistance spot-welded joints with and without adhesive in the field of Al joints with big total sheet thicknesses which meet the quality demands and an outlook for further research steps will be given.}}, author = {{Schmal, Christopher and Meschut, Gerson}}, issn = {{0043-2288}}, journal = {{Welding in the World}}, keywords = {{Metals and Alloys, Mechanical Engineering, Mechanics of Materials}}, number = {{9}}, pages = {{1471--1480}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Refill friction stir spot and resistance spot welding of aluminium joints with large total sheet thicknesses (III-1965-19)}}}, doi = {{10.1007/s40194-020-00922-2}}, volume = {{64}}, year = {{2020}}, }