@inproceedings{15792,
  abstract     = {{In this paper we highlight the privacy risks entailed in deep neural network feature extraction for domestic activity monitoring. We employ the baseline system proposed in the Task 5 of the DCASE 2018 challenge and simulate a feature interception attack by an eavesdropper who wants to perform speaker identification. We then propose to reduce the aforementioned privacy risks by introducing a variational information feature extraction scheme that allows for good activity monitoring performance while at the same time minimizing the information of the feature representation, thus restricting speaker identification attempts. We analyze the resulting model’s composite loss function and the budget scaling factor used to control the balance between the performance of the trusted and attacker tasks. It is empirically demonstrated that the proposed method reduces speaker identification privacy risks without significantly deprecating the performance of domestic activity monitoring tasks.}},
  author       = {{Nelus, Alexandru and Ebbers, Janek and Haeb-Umbach, Reinhold and Martin, Rainer}},
  booktitle    = {{INTERSPEECH 2019, Graz, Austria}},
  title        = {{{Privacy-preserving Variational Information Feature Extraction for Domestic Activity Monitoring Versus Speaker Identification}}},
  year         = {{2019}},
}

@article{15250,
  author       = {{Grabo, Matti and Weber, Daniel and Paul, Andreas and Klaus, Tobias and Bermpohl, Wolfgang and Krauter, Stefan and Kenig, Eugeny}},
  issn         = {{2283-9216}},
  journal      = {{Chemical Engineering Transactions}},
  pages        = {{895--900}},
  title        = {{{Numerical Investigation of the Temperature Distribution in PCM-integrated Solar Modules}}},
  doi          = {{10.3303/CET1976150}},
  year         = {{2019}},
}

@article{53274,
  abstract     = {{<jats:p>This paper studies the performance of improper Gaussian signaling (IGS) over a 2-user Rayleigh single-input single-output (SISO) interference channel, treating interference as noise. We assume that the receivers have perfect channel state information (CSI), while the transmitters have access to only statistical CSI. Under these assumptions, we consider a signaling scheme, which we refer to as proper/improper Gaussian signaling or PGS/IGS, where at most one user may employ IGS. For the Rayleigh fading channel model, we characterize the statistical distribution of the signal-to-interference-plus-noise ratio at each receiver and derive closed-form expressions for the ergodic rates. By adapting the powers, we characterize the Pareto boundary of the ergodic rate region for the 2-user fading IC. The ergodic transmission rates can be attained using fixed-rate codebooks and no optimization is involved. Our results show that, in the moderate and strong interference regimes, the proposed PGS/IGS scheme improves the performance with respect to the PGS scheme. Additionally, we numerically compute the ergodic rate region of the full IGS scheme when both users can employ IGS and their transmission parameters are optimized by an exhaustive search. Our results suggest that most of the Pareto optimal points for the 2-user fading IC channel are attained when either both users transmit PGS or when one transmits PGS and the other transmits maximally improper Gaussian signals and time sharing is allowed.</jats:p>}},
  author       = {{Soleymani, Mohammad and Santamaria, Ignacio and Lameiro, Christian and Schreier, Peter J.}},
  issn         = {{1099-4300}},
  journal      = {{Entropy}},
  keywords     = {{General Physics and Astronomy}},
  number       = {{10}},
  publisher    = {{MDPI AG}},
  title        = {{{Ergodic Rate for Fading Interference Channels with Proper and Improper Gaussian Signaling}}},
  doi          = {{10.3390/e21100922}},
  volume       = {{21}},
  year         = {{2019}},
}

@article{53276,
  author       = {{Soleymani, Mohammad and Lameiro, Christian and Santamaria, Ignacio and Schreier, Peter J.}},
  issn         = {{0090-6778}},
  journal      = {{IEEE Transactions on Communications}},
  keywords     = {{Electrical and Electronic Engineering}},
  number       = {{7}},
  pages        = {{4709--4723}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Robust Improper Signaling for Two-User SISO Interference Channels}}},
  doi          = {{10.1109/tcomm.2019.2910549}},
  volume       = {{67}},
  year         = {{2019}},
}

@inproceedings{53275,
  author       = {{Soleymani, Mohammad and Lameiro, Christian and Schreier, Peter J. and Santamaria, Ignacio}},
  booktitle    = {{ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}},
  publisher    = {{IEEE}},
  title        = {{{Energy-efficient Design for Underlay Cognitive Radio Using Improper Signaling}}},
  doi          = {{10.1109/icassp.2019.8683029}},
  year         = {{2019}},
}

@inproceedings{53272,
  author       = {{Soleymani, Mohammad and Maham, Behrouz}},
  booktitle    = {{2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)}},
  publisher    = {{IEEE}},
  title        = {{{Rate Analysis of SC-FDE and OFDM Systems with Low Resolution ADCs}}},
  doi          = {{10.1109/pimrc.2019.8904363}},
  year         = {{2019}},
}

@inproceedings{53273,
  author       = {{Soleymani, Mohammad and Lameiro, Christian and Santamaria, Ignacio and Schreier, Peter J.}},
  booktitle    = {{2019 27th European Signal Processing Conference (EUSIPCO)}},
  publisher    = {{IEEE}},
  title        = {{{Energy-Efficient Improper Signaling for K-User Interference Channels}}},
  doi          = {{10.23919/eusipco.2019.8903023}},
  year         = {{2019}},
}

@article{53271,
  author       = {{Soleymani, Mohammad and Lameiro, Christian and Santamaria, Ignacio and Schreier, Peter J.}},
  issn         = {{0090-6778}},
  journal      = {{IEEE Transactions on Communications}},
  keywords     = {{Electrical and Electronic Engineering}},
  number       = {{12}},
  pages        = {{8624--8638}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Improper Signaling for SISO Two-User Interference Channels With Additive Asymmetric Hardware Distortion}}},
  doi          = {{10.1109/tcomm.2019.2939310}},
  volume       = {{67}},
  year         = {{2019}},
}

@book{53596,
  editor       = {{Bringmann, Oliver and Ecker, Wolfgang and Müller, Wolfgang and Müller-Gridschneder, Daniel}},
  title        = {{{Proceedings of the 2nd International Workshop on Embedded Software for Industrial IoT - ESIIT}}},
  year         = {{2019}},
}

@inbook{37251,
  author       = {{Graefe, Grit and Temmen, Katrin}},
  booktitle    = {{Bildung beruflicher Lehrkräfte}},
  pages        = {{237--249}},
  publisher    = {{wbv Media GmbH & Co. KG Bielefeld}},
  title        = {{{Die Rolle des Beruflichen Gymnasiums Fachbereich Technik bei der Gewinnung von Lehramtsstudierenden für gewerblich- technische Fächer – Ergebnisse einer Untersuchung im Regierungsbezirk Detmold (NRW)}}},
  year         = {{2019}},
}

@misc{34124,
  abstract     = {{Es existieren bisher zahlreiche Studien, die das Potenzial von Augmented Reality (AR) in verschiedenen Bildungsbereichen und seine Auswirkungen auf die Lernenden hinsichtlich ihrer erhöhten Motivation, verbesserter Lernfähigkeit, Konzentration auf das Thema usw. hervorheben. Dabei eignen sich AR-Anwendungen sowohl für den Einsatz in formellen, als auch informellen Lernumgebungen und Bildungsinstitutionen, beginnend mit Kunstkursen in Vorschulen über Biologie, Geschichte, Chemie, Physik etc. in weiterführenden Schulen und Universitäten [1]. Trotz der steigenden Zahl an Studien liegen nur wenigen AR-Anwendungen ein geeignetes didaktisches Konzept zu Grunde. Ferner fehlen allgemeine Studien, die die lernfördernden Eigenschaften von AR im Bereich der Vorbereitung und Begleitung von Laborpraktika untersuchen. Aktuelle Anwendungen erweitern lediglich gedruckte Lerninhalte mit zusätzlichen Links, Videos oder statischen 3D-Modellen oder benötigen spezielle Voraussetzung für die Nutzung der AR-Anwendung [2]. Der vorliegende Beitrag untersucht und konzentriert sich daher auf ein didaktisches Konzept für eine auf mobilen Geräten basierende AR-Anwendung (App) zum Erwerb und zur Vertiefung praktischer Fertigkeiten im Umgang mit elektrotechnischen Laborgeräten und -komponenten. In einer früheren Arbeit wurden die Möglichkeiten und Grenzen der AR-Technologie in der Ingenieurausbildung mit besonderem Fokus auf Laborarbeit untersucht, um häufige Fehler im Designkonzept zu vermeiden. Das didaktische Grundkonzept beruht auf dem „Constructive Alignement“ nach Biggs [3] mit der Definition der drei obligatorischen Schritte: Lernziele, Lehr- / Lernaktivitäten und Prüfungsmethoden. Die Lernziele werden –  angelehnt an die modifizierte Bloom-Taxonomie nach Anderson und Krathwohl [4] – weiter konkretisiert, woraus dann im weiteren Schritt mögliche Lehrszenarien in AR gestaltet wurden.}},
  author       = {{Alptekin, Mesut and Temmen, Katrin}},
  keywords     = {{Augmented Reality, Laborpraktikum, didaktische Konzepte, Constructive Alignment}},
  publisher    = {{Gudrun Kammasch, Henning Klaf e, Sönke Knutzen (Hrsg.)}},
  title        = {{{Posterbeitrag: Didaktisches Konzept und Prototyp eines auf Augmented Reality basierenden virtuellen Vorpraktikums in der Elektrotechnik}}},
  year         = {{2019}},
}

@inproceedings{34121,
  abstract     = {{The first impression is important in many aspects of human decision-making. In mobile apps, this impression can be influenced by an onboarding process. In addition, not only the user experience (UX) can be improved via onboarding, but also the user can get a very good didactical introduction to a new topic or different functionalities of an app.
Therefore, this study examines different onboarding types and develops an onboarding process into an Augmented Reality (AR) based mobile application (app) that teaches students how to use and operate electro-technical laboratory equipment. This onboarding process is then assessed by students through a subsequent questionnaire in terms of attractiveness, functionality, and novelty. The results of this field study serve to examine this first prototype for possible optimizations and to further develop the app accordingly.}},
  author       = {{Alptekin, Mesut and Temmen, Katrin}},
  booktitle    = {{2019 IEEE Global Engineering Education Conference (EDUCON)}},
  keywords     = {{Augmented Reality, Laboratory Training, Engineering Education, Progressive Onboarding}},
  location     = {{Dubai, UAE}},
  pages        = {{1047--1054}},
  title        = {{{Teaching an Oscilloscope through Progressive Onboarding in an Augmented Reality Based Virtual Laboratory}}},
  doi          = {{10.1109/EDUCON.2019.8725038}},
  year         = {{2019}},
}

@inproceedings{37259,
  author       = {{Alptekin, Mesut and Temmen, Katrin}},
  title        = {{{Didaktisches Konzept und Prototyp eines auf Augmented Reality basierenden virtuellen Vorpraktikums in der Elektrotechnik}}},
  year         = {{2019}},
}

@misc{24792,
  author       = {{Bahmanian, Meysam and Scheytt, Christoph}},
  title        = {{{Theory of an Optoelectronic Microwave Phase-locked Loop based on a MLL reference and MZM-based Optoelectronic Phase Detection}}},
  year         = {{2019}},
}

@inproceedings{37612,
  author       = {{Hasija, Tanuj and Gölz, Martin and Muma, Michael and Schreier, Peter J and Zoubir, Abdelhak M}},
  booktitle    = {{Proc. Asilomar Conf. on Signals, Systems, Computers}},
  title        = {{{Source Enumeration and Robust Voice Activity Detection in Wireless Acoustic Sensor Networks}}},
  year         = {{2019}},
}

@article{39649,
  abstract     = {{Metal-semiconductor and junction n-channel field-effect transistors (MESFETs and JFETs) have been fabricated on glass substrates using room temperature deposited amorphous zinc-tin oxide (ZTO) channel layers. Characteristics of transistors and inverter circuits are compared. Best FET devices exhibit ON-to- OFF current ratios over eight orders of magnitude, subthreshold swings as low as 250 mV/dec and field-effect mobilities of 5 cm 2 /Vs. Furthermore, all devices show long-term stability over a period of more than 200 days. Inverters fabricated using either MESFETs or JFETs exhibit remarkable peak gain magnitude values of 350 and voltage uncertainty levels as low as 260 mV for an operating voltage of 5 V. A Schottky diode FET logic (SDFL) approach is applied to shift the switching voltage which is a requirement for cascading of inverters for realization of ring oscillators.}},
  author       = {{Lahr, Oliver and Zhang, Zhipeng and Grotjahn, Frank and Schlupp, Peter and Vogt, Sofie and von Wenckstern, Holger and Thiede, Andreas and Grundmann, Marius}},
  issn         = {{0018-9383}},
  journal      = {{IEEE Transactions on Electron Devices}},
  keywords     = {{Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials}},
  number       = {{8}},
  pages        = {{3376--3381}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Full-Swing, High-Gain Inverters Based on ZnSnO JFETs and MESFETs}}},
  doi          = {{10.1109/ted.2019.2922696}},
  volume       = {{66}},
  year         = {{2019}},
}

@inproceedings{38218,
  author       = {{Noé, Reinhold and Koch, Benjamin}},
  booktitle    = {{Photonic Networks; 20th ITG-Symposium}},
  pages        = {{1--3}},
  title        = {{{Polarization-Independent Depolarizer for Control and Supervisory Signals in Long-Haul Fiber Lines}}},
  year         = {{2019}},
}

@inproceedings{38215,
  author       = {{Koch, Benjamin and Noé, Reinhold}},
  booktitle    = {{Photonic Networks; 20th ITG-Symposium}},
  pages        = {{1--3}},
  title        = {{{Low-Loss Arbitrary Polarization State Synthesizer for Quantum Key Distribution Purposes}}},
  year         = {{2019}},
}

@inproceedings{40690,
  author       = {{Soleymani, Mohammad and Lameiro, Christian and Santamaria, Ignacio and Schreier, Peter J.}},
  booktitle    = {{Proc. IEEE European Signal Processing Conference (EUSIPCO)}},
  pages        = {{1409–1413}},
  title        = {{{Energy-Efficient Improper Signaling for $K$-User Interference Channels}}},
  doi          = {{10.23919/EUSIPCO.2019.8903023}},
  year         = {{2019}},
}

@inproceedings{40683,
  author       = {{Lameiro, Christian and Santamaria, Ignacio and Schreier, Peter J}},
  booktitle    = {{ICASSP 2019-2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}},
  pages        = {{4829–4833}},
  title        = {{{Improper Gaussian Signaling for the Two-user Broadcast Channel Treating Interference as Noise}}},
  year         = {{2019}},
}