@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},
}
@techreport{22219,
author = {Kundisch, Dennis},
title = {{Thoughts on the future of the BISE conference series}},
year = {2021},
}
@inbook{22221,
author = {Blankenfeldt, Maximilian and Müller, Jens and Weinrich, Arndt},
booktitle = {Intangibles - Immaterielle Werte},
editor = {Vögele, Alexander},
isbn = {978-3-406-71601-0},
publisher = {C.H.Beck},
title = {{Forschung und Entwicklung: Kriterien für die Aktivierung in der Unternehmenspraxis}},
year = {2021},
}
@article{22233,
author = {Köring, Laura and Sitte, Nikolai A. and Bursch, Markus and Grimme, Stefan and Paradies, Jan Henry Hakan},
issn = {0947-6539},
journal = {Chemistry – A European Journal},
title = {{Hydrogenation of secondary amides using phosphane oxide and frustrated Lewis pair catalysis}},
doi = {10.1002/chem.202100041},
year = {2021},
}
@inproceedings{21716,
author = {Schmolke, Tobias and Krüger, Christopher and Merdivan, David and Meschut, Gerson and Urban, Peter},
location = {Bad Nauheim},
title = {{Development of a Leak Test Method for the Joining technology of Functionally Integrated Lightweight Battery Housings for Electric Vehicles}},
year = {2021},
}
@article{21571,
abstract = {The paper investigates the impact of individual attention on investor risk-taking. We analyze a large sample of trading records from a brokerage service that allows its customers to trade contracts-for-differences (CFD), and sends standardized push messages on recent stock performance to its client investors. The advantage of this sample is that it allows us to isolate the "push" messages as individual attention triggers, which we can directly link to the same individuals' risk-taking. A particular advantage of CFD trading is that it allows investors to make use of leverage, which provides us a pure measure of investors' willingness to take risks that is independent of the decision to purchase a particular stock. Leverage is a major catalyst of speculative trading, as it increases the scope of extreme returns, and enables investors to take larger positions than what they can afford with their own capital. We show that investors execute attention-driven trades with higher leverage, compared to their other trades, as well as those of other investors who are not alerted by attention triggers.},
author = {Arnold, Marc and Pelster, Matthias and Subrahmanyam, Marti G.},
journal = {Journal of Financial Economics},
title = {{Attention triggers and investors' risk-taking}},
doi = {10.1016/j.jfineco.2021.05.031},
year = {2021},
}
@inproceedings{22264,
author = {Göddecke, Johannes and Meschut, Gerson},
booktitle = {11. Doktorandenseminar Klebtechnik},
location = {Aachen},
publisher = {DVS Media GmbH},
title = {{Experimentelle Untersuchung der Dämpfungseigenschaften geklebter Strukturen unter dynamischer Beanspruchung}},
year = {2021},
}
@inproceedings{22276,
author = {Böhne, Christoph and Meschut, Gerson and Biegler, Max and Rethmeier, Michael},
location = {virtual event},
title = {{Practical methods for avoidance of liquid metal embrittlement in resistance spot welds of advanced high strength steels}},
year = {2021},
}
@article{21374,
abstract = {A dark-field scanning transmission ion microscopy detector was designed for the helium ion microscope. The detection principle is based on a secondary electron conversion holder with an exchangeable aperture strip allowing its acceptance angle to be tuned from 3 to 98 mrad. The contrast mechanism and performance were investigated using freestanding nanometer-thin carbon membranes. The results demonstrate that the detector can be optimized either for most efficient signal collection or for maximum image contrast. The designed setup allows for the imaging of thin low-density materials that otherwise provide little signal or contrast and for a clear end-point detection in the fabrication of nanopores. In addition, the detector is able to determine the thickness of membranes with sub-nanometer precision by quantitatively evaluating the image signal and comparing the results with Monte Carlo simulations. The thickness determined by the dark-field transmission detector is compared to X-ray photoelectron spectroscopy and energy-filtered transmission electron microscopy measurements.},
author = {Emmrich, Daniel and Wolff, Annalena and Meyerbröker, Nikolaus and Lindner, Jörg and Beyer, André and Gölzhäuser, Armin},
issn = {2190-4286},
journal = {Beilstein Journal of Nanotechnology},
pages = {222--231},
title = {{Scanning transmission helium ion microscopy on carbon nanomembranes}},
doi = {10.3762/bjnano.12.18},
year = {2021},
}
@inproceedings{22283,
abstract = { We show how to construct an overlay network of constant degree and diameter $O(\log n)$ in time $O(\log n)$ starting from an arbitrary weakly connected graph.
We assume a synchronous communication network in which nodes can send messages to nodes they know the identifier of and establish new connections by sending node identifiers.
If the initial network's graph is weakly connected and has constant degree, then our algorithm constructs the desired topology with each node sending and receiving only $O(\log n)$ messages in each round in time $O(\log n)$, w.h.p., which beats the currently best $O(\log^{3/2} n)$ time algorithm of [Götte et al., SIROCCO'19].
Since the problem cannot be solved faster than by using pointer jumping for $O(\log n)$ rounds (which would even require each node to communicate $\Omega(n)$ bits), our algorithm is asymptotically optimal.
We achieve this speedup by using short random walks to repeatedly establish random connections between the nodes that quickly reduce the conductance of the graph using an observation of [Kwok and Lau, APPROX'14].
Additionally, we show how our algorithm can be used to efficiently solve graph problems in \emph{hybrid networks} [Augustine et al., SODA'20].
Motivated by the idea that nodes possess two different modes of communication, we assume that communication of the \emph{initial} edges is unrestricted. In contrast, only polylogarithmically many messages can be communicated over edges that have been established throughout an algorithm's execution.
For an (undirected) graph $G$ with arbitrary degree, we show how to compute connected components, a spanning tree, and biconnected components in time $O(\log n)$, w.h.p.
Furthermore, we show how to compute an MIS in time $O(\log d + \log \log n)$, w.h.p., where $d$ is the initial degree of $G$.},
author = {Götte, Thorsten and Hinnenthal, Kristian and Scheideler, Christian and Werthmann, Julian},
booktitle = {Proc. of the 40th ACM Symposium on Principles of Distributed Computing (PODC '21)},
editor = {Censor-Hillel, Keren},
location = {Virtual},
publisher = {ACM},
title = {{Time-Optimal Construction of Overlays}},
doi = {10.1145/3465084.3467932},
year = {2021},
}