@article{20592,
  abstract     = {{GaAs-(111)-nanostructures exhibiting second harmonic generation are new building blocks in nonlinear optics. Such structures can be fabricated through epitaxial lift-off using selective etching of Al-containing layers and subsequent transfer to glass substrates. Herein, the selective etching of (111)B-oriented AlxGa1−xAs sacrificial layers (10–50 nm thick) with different aluminum concentrations (x = 0.5–1.0) in 10\% hydrofluoric acid is investigated and compared with standard (100)-oriented structures. The thinner the sacrificial layer and the lower the aluminum content, the lower the lateral etch rate. For both orientations, the lateral etch rates are in the same order of magnitude, but some quantitative differences exist. Furthermore, the epitaxial lift-off, the transfer, and the nanopatterning of thin (111)B-oriented GaAs membranes are demonstrated. Atomic force microscopy and high-resolution X-ray diffraction measurements reveal the high structural quality of the transferred GaAs-(111) films.}},
  author       = {{Henksmeier, Tobias and Eppinger, Martin and Reineke, Bernhard and Zentgraf, Thomas and Meier, Cedrik and Reuter, Dirk}},
  journal      = {{physica status solidi (a)}},
  keywords     = {{epitaxial lift-off, GaAs/AlxGa1−xAs heterostructures, selective etching}},
  number       = {{3}},
  pages        = {{2000408}},
  title        = {{{Selective Etching of (111)B-Oriented AlxGa1−xAs-Layers for Epitaxial Lift-Off}}},
  doi          = {{https://doi.org/10.1002/pssa.202000408}},
  volume       = {{218}},
  year         = {{2021}},
}

@inproceedings{20641,
  author       = {{Aßmuth, Verena and Teutenberg, Dominik and Meschut, Gerson}},
  booktitle    = {{10. Doktorandenseminar Klebtechnik}},
  isbn         = {{978-3-96144-139-6}},
  location     = {{Kassel}},
  publisher    = {{DVS Media GmbH}},
  title        = {{{Analyse rezepturabhängiger und alterungsbedingter Enthaftungserscheinungen geklebter SMC-Bauteile}}},
  volume       = {{369}},
  year         = {{2021}},
}

@article{20683,
  author       = {{Feldkord, Björn and Knollmann, Till and Malatyali, Manuel and Meyer auf der Heide, Friedhelm}},
  journal      = {{Theory of Computing Systems}},
  pages        = {{943–984}},
  title        = {{{Managing Multiple Mobile Resources}}},
  doi          = {{10.1007/s00224-020-10023-8}},
  volume       = {{65}},
  year         = {{2021}},
}

@inproceedings{20693,
  abstract     = {{In practical, large-scale networks, services are requested
by users across the globe, e.g., for video streaming.
Services consist of multiple interconnected components such as
microservices in a service mesh. Coordinating these services
requires scaling them according to continuously changing user
demand, deploying instances at the edge close to their users,
and routing traffic efficiently between users and connected instances.
Network and service coordination is commonly addressed
through centralized approaches, where a single coordinator
knows everything and coordinates the entire network globally.
While such centralized approaches can reach global optima, they
do not scale to large, realistic networks. In contrast, distributed
approaches scale well, but sacrifice solution quality due to their
limited scope of knowledge and coordination decisions.

To this end, we propose a hierarchical coordination approach
that combines the good solution quality of centralized approaches
with the scalability of distributed approaches. In doing so, we divide
the network into multiple hierarchical domains and optimize
coordination in a top-down manner. We compare our hierarchical
with a centralized approach in an extensive evaluation on a real-world
network topology. Our results indicate that hierarchical
coordination can find close-to-optimal solutions in a fraction of
the runtime of centralized approaches.}},
  author       = {{Schneider, Stefan Balthasar and Jürgens, Mirko and Karl, Holger}},
  booktitle    = {{IFIP/IEEE International Symposium on Integrated Network Management (IM)}},
  keywords     = {{network management, service management, coordination, hierarchical, scalability, nfv}},
  location     = {{Bordeaux, France}},
  publisher    = {{IFIP/IEEE}},
  title        = {{{Divide and Conquer: Hierarchical Network and Service Coordination}}},
  year         = {{2021}},
}

@inproceedings{20817,
  author       = {{Bienkowski, Marcin and Feldkord, Björn and Schmidt, Pawel}},
  booktitle    = {{Proceedings of the 38th Symposium on Theoretical Aspects of Computer Science (STACS)}},
  pages        = {{14:1 -- 14:17}},
  title        = {{{A Nearly Optimal Deterministic Online Algorithm for Non-Metric Facility Location}}},
  doi          = {{10.4230/LIPIcs.STACS.2021.14}},
  year         = {{2021}},
}

@inproceedings{20857,
  author       = {{Camberg, Alan Adam and Tröster, Thomas and Latuske, Clemens}},
  location     = {{Wolfsburg}},
  publisher    = {{Springer}},
  title        = {{{Development of a hybrid crash-relevant car body component with load-adapted thickness properties: Design, manufacturing and testing}}},
  doi          = {{https://doi.org/10.1007/978-3-662-62924-6_28}},
  year         = {{2021}},
}

@inproceedings{20858,
  author       = {{Camberg, Alan Adam and Tröster, Thomas and Wingenbach, Nils and Hielscher, Christian  and Grenz, Julian}},
  location     = {{Wolfsburg}},
  publisher    = {{Springer}},
  title        = {{{A new numerical method for potential anaylsis and design of hybrid components from full vehicle simulations: Implementation and component design}}},
  doi          = {{https://doi.org/10.1007/978-3-662-62924-6_30}},
  year         = {{2021}},
}

@inproceedings{20886,
  author       = {{Nickchen, Tobias and Heindorf, Stefan and Engels, Gregor}},
  booktitle    = {{Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision}},
  location     = {{Hawaii}},
  pages        = {{1994--2002}},
  title        = {{{Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts}}},
  year         = {{2021}},
}

@article{20900,
  author       = {{Albert, M. and Golla, C. and Meier, Cedrik}},
  issn         = {{0022-0248}},
  journal      = {{Journal of Crystal Growth}},
  title        = {{{Optical in-situ temperature management for high-quality ZnO molecular beam epitaxy}}},
  doi          = {{10.1016/j.jcrysgro.2020.126009}},
  volume       = {{557}},
  year         = {{2021}},
}

@article{20925,
  author       = {{Abbas, Wameedh Khider Abbas and Linnemann, Matthias and Baumhögger, Elmar and Vrabec, Jadran}},
  issn         = {{0196-8904}},
  journal      = {{Energy Conversion and Management}},
  title        = {{{Experimental study of two cascaded organic Rankine cycles with varying working fluids}}},
  doi          = {{10.1016/j.enconman.2020.113818}},
  year         = {{2021}},
}

@inproceedings{22155,
  author       = {{Gottschalk, Sebastian}},
  booktitle    = {{Advanced Software Engineering. Doctorial Consortium}},
  publisher    = {{CEUR}},
  title        = {{{Situation-specific Development of Business Models for Services in Software Ecosystems}}},
  year         = {{2021}},
}

@inproceedings{22156,
  abstract     = {{Word embedding models reflect bias towards genders, ethnicities, and other social groups present in the underlying training data. Metrics such as ECT, RNSB, and WEAT quantify bias in these models based on predefined word lists representing social groups and bias-conveying concepts. How suitable these lists actually are to reveal bias - let alone the bias metrics in general - remains unclear, though. In this paper, we study how to assess the quality of bias metrics for word embedding models. In particular, we present a generic method, Bias Silhouette Analysis (BSA), that quantifies the accuracy and robustness of such a metric and of the word lists used. Given a biased and an unbiased reference embedding model, BSA applies the metric systematically for several subsets of the lists to the models. The variance and rate of convergence of the bias values of each model then entail the robustness of the word lists, whereas the distance between the models' values gives indications of the general accuracy of the metric with the word lists. We demonstrate the behavior of BSA on two standard embedding models for the three mentioned metrics with several word lists from existing research.}},
  author       = {{Spliethöver, Maximilian and Wachsmuth, Henning}},
  booktitle    = {{Proceedings of the Thirtieth International Joint Conference on Artificial Intelligence, IJCAI-21}},
  location     = {{Online}},
  pages        = {{552--559}},
  title        = {{{Bias Silhouette Analysis: Towards Assessing the Quality of Bias Metrics for Word Embedding Models}}},
  doi          = {{10.24963/ijcai.2021/77}},
  year         = {{2021}},
}

@inproceedings{22158,
  author       = {{Syed, Shahbaz and Al-Khatib, Khalid and Alshomary, Milad and Wachsmuth, Henning and Potthast, Martin}},
  booktitle    = {{Proceedings of the Joint Conference of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (ACL-IJCNLP 2021): Findings}},
  pages        = {{3482--3493}},
  title        = {{{Generating Informative Conclusions for Argumentative Texts}}},
  year         = {{2021}},
}

@inproceedings{22159,
  author       = {{Barrow, Joe and Jain, Rajiv and Lipka, Nedim and Dernoncourt, Franck and Morariu, Vlad and Manjunatha, Varun and Oard, Douglas and Resnik, Philip and Wachsmuth, Henning}},
  booktitle    = {{Proceedings of the Joint Conference of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (ACL-IJCNLP 2021)}},
  pages        = {{1583--1595}},
  title        = {{{Syntopical Graphs for Computational Argumentation Tasks}}},
  year         = {{2021}},
}

@inproceedings{22160,
  author       = {{Al-Khatib, Khalid and Trautner, Lukas and Wachsmuth, Henning and Hou, Yufang and Stein, Benno}},
  booktitle    = {{Proceedings of the Joint Conference of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (ACL-IJCNLP 2021)}},
  pages        = {{4744--4754}},
  title        = {{{Employing Argumentation Knowledge Graphs for Neural Argument Generation}}},
  year         = {{2021}},
}

@article{22205,
  abstract     = {{In January 2021, the GameStop stock was the epicenter of the first case of predatory trading initiated by retail investors. We use brokerage accounts to study who participated in this GameStop frenzy and how they performed. We investigate the extent to which investors’ personal and trading characteristics differ from the general population of retail investors. GameStop traders had a history of investing in speculative instruments, including stocks with lottery-like features. They were also more likely to close their positions before the peak of the bubble. At the onset of the frenzy, numerous retail investors also shorted GameStop. Overall, our results indicate that the GameStop frenzy was not a pure digital protest against Wall Street but speculative trading by a group of retail investors, in line with their prior high-risk trading behavior.}},
  author       = {{Hasso, Tim and Müller, Daniel and Pelster, Matthias and Warkulat, Sonja}},
  journal      = {{Finance Research Letters}},
  keywords     = {{Predatory Trading, Retail Investors, Trading Behavior}},
  title        = {{{Who participated in the GameStop frenzy? Evidence from brokerage accounts}}},
  doi          = {{10.1016/j.frl.2021.102140}},
  year         = {{2021}},
}

@article{22206,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>We consider tracking control for multibody systems which are modeled using holonomic and non-holonomic constraints. Furthermore, the systems may be underactuated and contain kinematic loops and are thus described by a set of differential-algebraic equations that cannot be reformulated as ordinary differential equations in general. We propose a control strategy which combines a feedforward controller based on the servo-constraints approach with a feedback controller based on a recent funnel control design. As an important tool for both approaches, we present a new procedure to derive the internal dynamics of a multibody system. Furthermore, we present a feasible set of coordinates for the internal dynamics avoiding the effort involved with the computation of the Byrnes–Isidori form. The control design is demonstrated by a simulation for a nonlinear non-minimum phase multi-input, multi-output robotic manipulator with kinematic loop.</jats:p>}},
  author       = {{Berger, Thomas and Drücker, Svenja and Lanza, Lukas Johannes and Reis, Timo and Seifried, Robert}},
  issn         = {{0924-090X}},
  journal      = {{Nonlinear Dynamics}},
  title        = {{{Tracking control for underactuated non-minimum phase multibody systems}}},
  doi          = {{10.1007/s11071-021-06458-4}},
  year         = {{2021}},
}

@techreport{22211,
  author       = {{Lorenz, Johannes and Sureth-Sloane, Caren and Diller, Markus}},
  title        = {{{Inconsistent tax transfer prices: tax filings, audits, and double taxation}}},
  doi          = {{10.52569/acpj5634}},
  year         = {{2021}},
}

@article{22214,
  author       = {{Mund, Johannes and Yakovlev, Dmitri R. and Sadofev, Sergey and Meier, Cedrik and Bayer, Manfred}},
  issn         = {{2469-9950}},
  journal      = {{Physical Review B}},
  title        = {{{Second harmonic generation on excitons in ZnO/(Zn,Mg)O quantum wells with built-in electric fields}}},
  doi          = {{10.1103/physrevb.103.195311}},
  volume       = {{103}},
  year         = {{2021}},
}

@article{22215,
  abstract     = {{Topological states of light represent counterintuitive optical modes localized at boundaries of finite-size optical structures that originate from the properties of the bulk. Being defined by bulk properties, such boundary states are insensitive to certain types of perturbations, thus naturally enhancing robustness of photonic circuitries. Conventionally, the N-dimensional bulk modes correspond to (N – 1)-dimensional boundary states. The higher-order bulk-boundary correspondence relates N-dimensional bulk to boundary states with dimensionality reduced by more than 1. A special interest lies in miniaturization of such higher-order topological states to the nanoscale. Here, we realize nanoscale topological corner states in metasurfaces with C6-symmetric honeycomb lattices. We directly observe nanoscale topology-empowered edge and corner localizations of light and enhancement of light–matter interactions via a nonlinear imaging technique. Control of light at the nanoscale empowered by topology may facilitate miniaturization and on-chip integration of classical and quantum photonic devices.}},
  author       = {{Kruk, Sergey S. and Gao, Wenlong and Choi, Duk-Yong and Zentgraf, Thomas and Zhang, Shuang and Kivshar, Yuri}},
  issn         = {{1530-6984}},
  journal      = {{Nano Letters}},
  number       = {{11}},
  pages        = {{4592–4597}},
  publisher    = {{ACS}},
  title        = {{{Nonlinear Imaging of Nanoscale Topological Corner States}}},
  doi          = {{10.1021/acs.nanolett.1c00449}},
  volume       = {{21}},
  year         = {{2021}},
}