@inproceedings{33806,
  author       = {{Afifi, Haitham and Karl, Holger and Gburrek, Tobias and Schmalenstroeer, Joerg}},
  booktitle    = {{2022 International Wireless Communications and Mobile Computing (IWCMC)}},
  publisher    = {{IEEE}},
  title        = {{{Data-driven Time Synchronization in Wireless Multimedia Networks}}},
  doi          = {{10.1109/iwcmc55113.2022.9824980}},
  year         = {{2022}},
}

@inbook{45373,
  author       = {{Dröse, Jennifer and Neugebauer, P. and Delucchi Danhier, R. and Mertins, B.}},
  booktitle    = {{Eye-Tracking in der Mathematik- und Naturwissenschaftsdidaktik. Forschung und Praxis}},
  editor       = {{Kleine, P. and Graulich, N. and Kuhn, J. and Schindler, M.}},
  pages        = {{209--225}},
  title        = {{{Eye-Tracking Studie zu Textaufgaben in Klasse 5: Bemerken und Interpretieren syntaktischer Strukturen}}},
  doi          = {{https://doi.org/10.1007/978-3-662-63214-7}},
  year         = {{2022}},
}

@inproceedings{33847,
  abstract     = {{The scope of speech enhancement has changed from a monolithic view of single,
independent tasks, to a joint processing of complex conversational speech
recordings. Training and evaluation of these single tasks requires synthetic
data with access to intermediate signals that is as close as possible to the
evaluation scenario. As such data often is not available, many works instead
use specialized databases for the training of each system component, e.g
WSJ0-mix for source separation. We present a Multi-purpose Multi-Speaker
Mixture Signal Generator (MMS-MSG) for generating a variety of speech mixture
signals based on any speech corpus, ranging from classical anechoic mixtures
(e.g., WSJ0-mix) over reverberant mixtures (e.g., SMS-WSJ) to meeting-style
data. Its highly modular and flexible structure allows for the simulation of
diverse environments and dynamic mixing, while simultaneously enabling an easy
extension and modification to generate new scenarios and mixture types. These
meetings can be used for prototyping, evaluation, or training purposes. We
provide example evaluation data and baseline results for meetings based on the
WSJ corpus. Further, we demonstrate the usefulness for realistic scenarios by
using MMS-MSG to provide training data for the LibriCSS database.}},
  author       = {{Cord-Landwehr, Tobias and von Neumann, Thilo and Boeddeker, Christoph and Haeb-Umbach, Reinhold}},
  booktitle    = {{2022 International Workshop on Acoustic Signal Enhancement (IWAENC)}},
  location     = {{Bamberg}},
  title        = {{{MMS-MSG: A Multi-purpose Multi-Speaker Mixture Signal Generator}}},
  year         = {{2022}},
}

@inproceedings{33807,
  author       = {{Gburrek, Tobias and Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}},
  booktitle    = {{ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}},
  publisher    = {{IEEE}},
  title        = {{{On Synchronization of Wireless Acoustic Sensor Networks in the Presence of Time-Varying Sampling Rate Offsets and Speaker Changes}}},
  doi          = {{10.1109/icassp43922.2022.9746284}},
  year         = {{2022}},
}

@article{33451,
  abstract     = {{We present an approach to automatically generate semantic labels for real recordings of automotive range-Doppler (RD) radar spectra. Such labels are required when training a neural network for object recognition from radar data. The automatic labeling approach rests on the simultaneous recording of camera and lidar data in addition to the radar spectrum. By warping radar spectra into the camera image, state-of-the-art object recognition algorithms can be applied to label relevant objects, such as cars, in the camera image. The warping operation is designed to be fully differentiable, which allows backpropagating the gradient computed on the camera image through the warping operation to the neural network operating on the radar data. As the warping operation relies on accurate scene flow estimation, we further propose a novel scene flow estimation algorithm which exploits information from camera, lidar and radar sensors. The
proposed scene flow estimation approach is compared against a state-of-the-art scene flow algorithm, and it outperforms it by approximately 30% w.r.t. mean average error. The feasibility of the overall framework for automatic label generation for
RD spectra is verified by evaluating the performance of neural networks trained with the proposed framework for Direction-of-Arrival estimation.}},
  author       = {{Grimm, Christopher and Fei, Tai and Warsitz, Ernst and Farhoud, Ridha and Breddermann, Tobias and Haeb-Umbach, Reinhold}},
  journal      = {{IEEE Transactions on Vehicular Technology}},
  number       = {{9}},
  pages        = {{9435--9449}},
  title        = {{{Warping of Radar Data Into Camera Image for Cross-Modal Supervision in Automotive Applications}}},
  doi          = {{10.1109/TVT.2022.3182411}},
  volume       = {{71}},
  year         = {{2022}},
}

@article{34281,
  abstract     = {{In this paper, we apply imprinting theory to examine how institutional transformation substantially influences perceptions of corruption that we argue to be incorporated to a varying extent in organizations founded in that period. For this purpose, we compare the effect of a sudden shock (dissolution of the Soviet Union) on the managers' present perceptions to that of a steady transition (EU accession). We consult the 5th round of the Business Environment and Enterprise Performance Survey from 2012 to 2014 analyzing 4715 interviews with managers of organizations from twelve Central and Eastern European countries. Our results reveal striking differences in the present perception of corruption for organizations founded immediately before and immediately after these institutional transitions. The study's results contribute to the research on imprinting theory regarding the relationship between organizations and institutional conditions that constitutes a lasting effect on organizational structures. Thus, applying an institutional perspective that considers less stable periods for organizations yields a promising avenue in research on organizational behavior.}},
  author       = {{Auer, Thorsten Fabian and Knorr, Karin and Thommes, Kirsten}},
  issn         = {{2694-6424}},
  journal      = {{Business Ethics, the Environment & Responsibility}},
  keywords     = {{Central and Eastern Europe, corruption, imprinting theory, institutional transformation, shock-imprinting}},
  number       = {{2}},
  pages        = {{478--497}},
  publisher    = {{Wiley}},
  title        = {{{Long‐term effects of institutional conditions on perceived corruption – A study on organizational imprinting in post‐communist countries}}},
  doi          = {{10.1111/beer.12506}},
  volume       = {{32}},
  year         = {{2022}},
}

@article{44529,
  abstract     = {{According to the German Rectors’ Conference (HRK), German higher education teaching fails to
meet the demand to integrate competence-oriented learning objectives. Despite a wide-ranging debate on the use of learning objectives, empirical research on their effectiveness is scarce. The present study uses the features of digital teaching platforms to investigate the perception and effectiveness of learning objectives applying a randomised controlled experiment followed by a survey in a course for undergraduate economics students (N = 30). Controlling group preconditions and the treatment effect allows to draw conclusions about the different learning outcomes of the student groups. The specification of behaviour-oriented learning objectives in the online course system leads to significantly better performance in the treatment group. A stronger perception of the learning objectives in the treatment group supports this effect that remains significant in a regression analysis. Thus, the study provides an empirical justification to integrate learning objectives in university teaching.}},
  author       = {{Auer, Thorsten Fabian}},
  issn         = {{2199-8825}},
  journal      = {{die hochschullehre}},
  keywords     = {{learning objectives, academic performance, perception, teaching methods, experiment}},
  number       = {{1}},
  pages        = {{662--675}},
  title        = {{{Die Wirksamkeit von Lernzielen für Studienleistungen – eine experimentelle Studie}}},
  doi          = {{http://doi.org/10.3278/HSL2248W}},
  volume       = {{8}},
  year         = {{2022}},
}

@article{47980,
  abstract     = {{Recently, ferroelectric domain walls (DWs) have attracted considerable attention due to their intrinsic topological effects and their huge potential for optoelectronic applications. In contrast, many of the underlying physical properties and phenomena are not well characterized. In this regard, analyzing the vibrational properties, e.g. by Raman spectroscopy, provides direct access to the various local material properties, such as strains, defects or electric fields. While the optical phonon spectra of DWs have been widely investigated in the past, no reports on the acoustic phonon properties of DWs exist. In this work, we present a joint Raman and Brillouin visualization of ferroelectric DWs in the model ferroelectric lithium niobate. This is possible by using a combined Raman and virtually imaged phased array Brillouin setup. Here, we show that DWs can be visualized via frequency shifts observed in the acoustic phonons, as well. The observed contrast then is qualitatively explained by models adapted from Raman spectroscopy. This work, hence, provides a novel route to study ferroelectric DWs and their intrinsic mechanical properties.}},
  author       = {{Rix, Jan and Rüsing, Michael and Galli, Roberta and Golde, Jonas and Reitzig, Sven and Eng, Lukas M. and Koch, Edmund}},
  issn         = {{1094-4087}},
  journal      = {{Optics Express}},
  keywords     = {{Atomic and Molecular Physics, and Optics}},
  number       = {{4}},
  publisher    = {{Optica Publishing Group}},
  title        = {{{Brillouin and Raman imaging of domain walls in periodically-poled 5%-MgO:LiNbO3}}},
  doi          = {{10.1364/oe.447554}},
  volume       = {{30}},
  year         = {{2022}},
}

@inproceedings{47971,
  abstract     = {{<jats:p>We apply coherent anti-Stokes Raman scattering (CARS) for high-speed imaging of domain walls in lithium niobate. The domain wall signature provides similar spectral features as in spontaneous Raman spectroscopy, however at drastically increased scan speeds.</jats:p>}},
  author       = {{Reitzig, Sven and Hempel, Franz and Rüsing, Michael and Eng, Lukas M.}},
  booktitle    = {{OSA Nonlinear Optics 2021}},
  location     = {{Washington D.C., USA; Online}},
  publisher    = {{Optica Publishing Group}},
  title        = {{{CARS Domain-Wall Analysis in single-crystalline Lithium Niobate}}},
  doi          = {{10.1364/nlo.2021.nth3a.7}},
  year         = {{2022}},
}

@inproceedings{47969,
  abstract     = {{<jats:p>The influence of geometrical confinement in back-reflection Second-Harmonic microscopy is experimentally and theoretically investigated in the wedge-shaped model system lithium niobate. The co-propagating signal is found to be the dominating contribution.</jats:p>}},
  author       = {{Amber, Zeeshan H. and Kirbus, Benjamin and Rüsing, Michael and Eng, Lukas M.}},
  booktitle    = {{OSA Nonlinear Optics 2021}},
  location     = {{Washington D.C., USA; Online}},
  publisher    = {{Optica Publishing Group}},
  title        = {{{Second-harmonic microscopy in optically confining nanostructures}}},
  doi          = {{10.1364/nlo.2021.nf1b.6}},
  year         = {{2022}},
}

@inproceedings{47970,
  abstract     = {{We apply broadband coherent anti-Stokes Raman scattering, an imaging tech- nique mostly applied in biology, to the solid state system lithium niobate, where we show an enhanced full spectrum and a working signal transformation.}},
  author       = {{Hempel, Franz and Reitzig, Sven and Rüsing, Michael and Eng, Lukas M.}},
  booktitle    = {{OSA Nonlinear Optics 2021}},
  location     = {{Washington D.C., USA; Online}},
  publisher    = {{Optica Publishing Group}},
  title        = {{{Broadband Coherent Anti-Stokes Raman Scattering on Solid State Systems}}},
  doi          = {{10.1364/nlo.2021.nf2b.6}},
  year         = {{2022}},
}

@article{30863,
  abstract     = {{<jats:title>Abstract</jats:title>
               <jats:p>In this paper a measurement procedure to identify viscoelastic material parameters of plate-like samples using broadband ultrasonic waves is presented. Ultrasonic Lamb waves are excited via the thermoelastic effect using laser radiation and detected by a piezoelectric transducer. The resulting measurement data is transformed to yield information about multiple propagating Lamb waves as well as their attenuation. These results are compared to simulation results in an inverse procedure to identify the parameters of an elastic and a viscoelastic material model.</jats:p>}},
  author       = {{Johannesmann, Sarah and Claes, Leander and Feldmann, Nadine and Zeipert, Henning and Henning, Bernd}},
  issn         = {{2196-7113}},
  journal      = {{tm - Technisches Messen}},
  keywords     = {{Electrical and Electronic Engineering, Instrumentation}},
  number       = {{7 - 8}},
  pages        = {{493 -- 506}},
  publisher    = {{Walter de Gruyter GmbH}},
  title        = {{{Lamb wave based approach to the determination of acoustic material parameters}}},
  doi          = {{10.1515/teme-2021-0134}},
  volume       = {{89}},
  year         = {{2022}},
}

@inproceedings{33857,
  author       = {{Kuhlmann, Michael and Seebauer, Fritz and Ebbers, Janek and Wagner, Petra and Haeb-Umbach, Reinhold}},
  booktitle    = {{Interspeech 2022}},
  publisher    = {{ISCA}},
  title        = {{{Investigation into Target Speaking Rate Adaptation for Voice Conversion}}},
  doi          = {{10.21437/interspeech.2022-10740}},
  year         = {{2022}},
}

@inproceedings{45378,
  author       = {{Dröse, Jennifer and Wessel, Lena}},
  booktitle    = {{Proceedings of the 45th Conference of the International Group for the Psychology of Mathematics Education. PME}},
  editor       = {{Fernandez, C. and Llinares, S. and Gutiérrez, A. and Planas, N.}},
  title        = {{{Prospective Teachers‘ Competence of Fostering Students’ Understanding in Script Writing Task}}},
  year         = {{2022}},
}

@inbook{48677,
  author       = {{Lentfort, Theresa and Künzl-Snodgrass, Annemarie and de Vincent-Humphreys, Maren}},
  booktitle    = {{Ab Initio Language Teaching in British Higher Education. The Case of German }},
  editor       = {{Bavendiek, Ulrike and Mentchen, Silke and Mossmann, Christian and Dagmar, Paulus}},
  isbn         = {{ 978-1-78735-927-7}},
  pages        = {{167 -- 182}},
  publisher    = {{UCL Press}},
  title        = {{{Effective vocabulary learning apps: what should they look like? An evaluation with a particular view to German language acquisition }}},
  doi          = {{10.14324}},
  year         = {{2022}},
}

@article{44231,
  abstract     = {{<jats:p>A new decomposition mechanism for trimethylborane at high temperatures has been discovered.</jats:p>}},
  author       = {{Schleier, Domenik and Gerlach, Marius and Schaffner, Dorothee and Mukhopadhyay, Deb Pratim and Hemberger, Patrick and Fischer, Ingo}},
  issn         = {{1463-9076}},
  journal      = {{Physical Chemistry Chemical Physics}},
  keywords     = {{Physical and Theoretical Chemistry, General Physics and Astronomy}},
  number       = {{6}},
  pages        = {{4511--4518}},
  publisher    = {{Royal Society of Chemistry (RSC)}},
  title        = {{{Threshold photoelectron spectroscopy of trimethylborane and its pyrolysis products}}},
  doi          = {{10.1039/d2cp04513c}},
  volume       = {{25}},
  year         = {{2022}},
}

@inproceedings{33808,
  author       = {{Gburrek, Tobias and Schmalenstroeer, Joerg and Heitkaemper, Jens and Haeb-Umbach, Reinhold}},
  booktitle    = {{2022 International Workshop on Acoustic Signal Enhancement (IWAENC)}},
  location     = {{ Bamberg, Germany }},
  publisher    = {{IEEE}},
  title        = {{{Informed vs. Blind Beamforming in Ad-Hoc Acoustic Sensor Networks for Meeting Transcription}}},
  doi          = {{10.1109/IWAENC53105.2022.9914772}},
  year         = {{2022}},
}

@inproceedings{34072,
  abstract     = {{Performing an adequate evaluation of sound event detection (SED) systems is far from trivial and is still subject to ongoing research. The recently proposed polyphonic sound detection (PSD)-receiver operating characteristic (ROC) and PSD score (PSDS) make an important step into the direction of an evaluation of SED systems which is independent from a certain decision threshold. This allows to obtain a more complete picture of the overall system behavior which is less biased by threshold tuning. Yet, the PSD-ROC is currently only approximated using a finite set of thresholds. The choice of
the thresholds used in approximation, however, can have a severe impact on the resulting PSDS. In this paper we propose a method which allows for computing system performance on an evaluation set for all possible thresholds jointly, enabling accurate computation not only of the PSD-ROC and PSDS but also of other collar-based
and intersection-based performance curves. It further allows to select the threshold which best fulfills the requirements of a given application. Source code is publicly available in our SED evaluation package sed_scores_eval.}},
  author       = {{Ebbers, Janek and Haeb-Umbach, Reinhold and Serizel, Romain}},
  booktitle    = {{Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}},
  title        = {{{Threshold Independent Evaluation of Sound Event Detection Scores}}},
  year         = {{2022}},
}

@inproceedings{49128,
  abstract     = {{Im Projekt „UAV-Rescue: UAV-getragene Sensorik zur KI-basierten Unterstützung von Rettungsmissionen“ wird an einem unbemannt fliegenden System geforscht, das in schwer zugänglichen Räumen bei der Rettungspriorisierung hilft, indem es den Einsatzkräften eine Visualisierung des Raumes mit darin lokalisierten Lebenszeichen zur Verfügung stellt. Diese neue Technologie wirft verschiedene ethische Fragestellungen auf, die unter anderem die Nutzung von Künstlicher Intelligenz zur Lebenszeichendetektion und die Einbettung der neuen Technologie in die Einsatzpraxis betreffen. Die ethische Begleitforschung des Projekts adressiert diese Fragestellungen in einem interdisziplinären und iterativen Diskurs mit Technikpartnern und Endanwendern. Einige dieser Fragestellungen werden hier vor dem Hintergrund der eingesetzten KI-Methoden und der bestehenden Einsatzpraxis beim THW vorgestellt.}},
  author       = {{Philippi, Martina and Heusinger-Heß, Victoria and Ari, Meral and Krüger, Emily}},
  booktitle    = {{Mensch und Computer 2022 - Workshopband}},
  editor       = {{Marky, K. and Grünefeld, U. and Kosch, T.}},
  keywords     = {{rescue robotics, interdisciplinarity, artifical intelligence, ethics}},
  location     = {{Darmstadt}},
  title        = {{{KI im Einsatz. Interdisziplinäre Herausforderungen im Projekt UAV-Rescue}}},
  doi          = {{10.18420/muc2022-mci-ws10-332}},
  year         = {{2022}},
}

@article{34733,
  abstract     = {{<jats:p>Due to their valuable properties (low weight, and good thermal and mechanical properties), glass fiber reinforced thermoplastics are becoming increasingly important. Fiber-reinforced thermoplastics are mainly manufactured by injection molding and extrusion, whereby the extrusion compounding process is primarily used to produce fiber-filled granulates. Reproducible production of high-quality components requires a granulate in which the fiber length is even and high. However, the extrusion process leads to the fact that fiber breakages can occur during processing. To enable a significant quality enhancement, experimentally validated modeling is required. In this study, short glass fiber reinforced thermoplastics (polypropylene) were produced on two different twin-screw extruders. Therefore, the machine-specific process behavior is of major interest regarding its influence. First, the fiber length change after processing was determined by experimental investigations and then simulated with the SIGMA simulation software. By comparing the simulation and experimental tests, important insights could be gained and the effects on fiber lengths could be determined in advance. The resulting fiber lengths and distributions were different, not only for different screw configurations (SC), but also for the same screw configurations on different twin-screw extruders. This may have been due to manufacturer-specific tolerances.</jats:p>}},
  author       = {{Rüppel, Annette and Wolff, Susanne and Oldemeier, Jan Philipp and Schöppner, Volker and Heim, Hans-Peter}},
  issn         = {{2073-4360}},
  journal      = {{Polymers}},
  keywords     = {{Polymers and Plastics, General Chemistry}},
  number       = {{15}},
  publisher    = {{MDPI AG}},
  title        = {{{Influence of Processing Glass-Fiber Filled Plastics on Different Twin-Screw Extruders and Varying Screw Designs on Fiber Length and Particle Distribution}}},
  doi          = {{10.3390/polym14153113}},
  volume       = {{14}},
  year         = {{2022}},
}