@article{31376,
  author       = {{Hoffmann, Max}},
  journal      = {{Der Mathematikunterricht}},
  pages        = {{36–47}},
  title        = {{{Zirkel und Lineal ohne Parallelenaxiom: Ein konstruktiver Zugang zur hyperbolischen Geometrie.}}},
  volume       = {{66 (6)}},
  year         = {{2020}},
}

@article{16277,
  abstract     = {{CP2K is an open source electronic structure and molecular dynamics software package to perform atomistic simulations of solid-state, liquid, molecular, and biological systems. It is especially aimed at massively parallel and linear-scaling electronic structure methods and state-of-theart ab initio molecular dynamics simulations. Excellent performance for electronic structure calculations is achieved using novel algorithms implemented for modern high-performance computing systems. This review revisits the main capabilities of CP2K to perform efficient and accurate electronic structure simulations. The emphasis is put on density functional theory and multiple post–Hartree–Fock methods using the Gaussian and plane wave approach and its augmented all-electron extension.}},
  author       = {{Kühne, Thomas and Iannuzzi, Marcella and Ben, Mauro Del and Rybkin, Vladimir V. and Seewald, Patrick and Stein, Frederick and Laino, Teodoro and Khaliullin, Rustam Z. and Schütt, Ole and Schiffmann, Florian and Golze, Dorothea and Wilhelm, Jan and Chulkov, Sergey and Mohammad Hossein Bani-Hashemian, Mohammad Hossein Bani-Hashemian and Weber, Valéry and Borstnik, Urban and Taillefumier, Mathieu and Jakobovits, Alice Shoshana and Lazzaro, Alfio and Pabst, Hans and Müller, Tiziano and Schade, Robert and Guidon, Manuel and Andermatt, Samuel and Holmberg, Nico and Schenter, Gregory K. and Hehn, Anna and Bussy, Augustin and Belleflamme, Fabian and Tabacchi, Gloria and Glöß, Andreas and Lass, Michael and Bethune, Iain and Mundy, Christopher J. and Plessl, Christian and Watkins, Matt and VandeVondele, Joost and Krack, Matthias and Hutter, Jürg}},
  journal      = {{The Journal of Chemical Physics}},
  number       = {{19}},
  title        = {{{CP2K: An electronic structure and molecular dynamics software package - Quickstep: Efficient and accurate electronic structure calculations}}},
  doi          = {{10.1063/5.0007045}},
  volume       = {{152}},
  year         = {{2020}},
}

@inproceedings{16898,
  abstract     = {{Electronic structure calculations based on density-functional theory (DFT)
represent a significant part of today's HPC workloads and pose high demands on
high-performance computing resources. To perform these quantum-mechanical DFT
calculations on complex large-scale systems, so-called linear scaling methods
instead of conventional cubic scaling methods are required. In this work, we
take up the idea of the submatrix method and apply it to the DFT computations
in the software package CP2K. For that purpose, we transform the underlying
numeric operations on distributed, large, sparse matrices into computations on
local, much smaller and nearly dense matrices. This allows us to exploit the
full floating-point performance of modern CPUs and to make use of dedicated
accelerator hardware, where performance has been limited by memory bandwidth
before. We demonstrate both functionality and performance of our implementation
and show how it can be accelerated with GPUs and FPGAs.}},
  author       = {{Lass, Michael and Schade, Robert and Kühne, Thomas and Plessl, Christian}},
  booktitle    = {{Proc. International Conference for High Performance Computing, Networking, Storage and Analysis (SC)}},
  location     = {{Atlanta, GA, US}},
  pages        = {{1127--1140}},
  publisher    = {{IEEE Computer Society}},
  title        = {{{A Submatrix-Based Method for Approximate Matrix Function Evaluation in the Quantum Chemistry Code CP2K}}},
  doi          = {{10.1109/SC41405.2020.00084}},
  year         = {{2020}},
}

@article{37789,
  author       = {{Weigelt, Matthias and Güldenpenning, Iris and Steggemann-Weinrich, Yvonne}},
  issn         = {{2152-7180}},
  journal      = {{Psychology}},
  keywords     = {{General Earth and Planetary Sciences, General Environmental Science}},
  number       = {{10}},
  pages        = {{1493--1510}},
  publisher    = {{Scientific Research Publishing, Inc.}},
  title        = {{{The Head-Fake Effect in Basketball Is Based on the Processing of Head Orientation, but Not on Gaze Direction}}},
  doi          = {{10.4236/psych.2020.1110095}},
  volume       = {{11}},
  year         = {{2020}},
}

@article{37827,
  author       = {{Friehs, Maximilian A. and Güldenpenning, Iris and Frings, Christian and Weigelt, Matthias}},
  issn         = {{2509-3290}},
  journal      = {{Journal of Cognitive Enhancement}},
  keywords     = {{General Medicine}},
  number       = {{1}},
  pages        = {{62--70}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Electrify your Game! Anodal tDCS Increases the Resistance to Head Fakes in Basketball}}},
  doi          = {{10.1007/s41465-019-00133-8}},
  volume       = {{4}},
  year         = {{2020}},
}

@article{37829,
  abstract     = {{Reactions to the pass of a basketball player performing a head fake are typically slower than reactions to a basketball player who passes without a head fake (i.e., head-fake effect). The present study shows that extensive practice reduces the head-fake effect in basketball. Additional analyses were conducted to explore the mechanism behind the reduced head-fake effect. First, we analyzed whether or not participants developed some control over the processing of irrelevant gaze direction, as indicated by specific trial-to-trial adaptations (i.e., congruency sequence effect). Second, we fitted the individual frequency distributions of RTs to ex-Gaussian distributions, to evaluate if practice specifically affects the Gaussian part of the distribution or the exponential part of the distribution. Third, we modeled individual RT distributions as the so-called mixture effects to examine whether the way irrelevant gaze direction impacts performance (either occasionally but massively or continuously but moderately) changes with practice. The analyses revealed that the effect of practice could not be explained with an increasing congruency-sequence effect. Also, it could not be found in the ex-Gaussian distributional analyses. The assumption that residual failure to inhibit the processing of the gaze direction in contrast to continuous failures to do so might favor mixed effects over uniform effects at later courses of practice could not be validated. The reduced head-fake effect thus is argued to source in participants’ general increasing ability to inhibit the processing of the task-irrelevant gaze direction information and/or in a priority shift of gaze processing to a processing of the pass direction.}},
  author       = {{Güldenpenning, Iris and Schütz, Christoph and Weigelt, Matthias and Kunde, Wilfried}},
  issn         = {{0340-0727}},
  journal      = {{Psychological Research}},
  keywords     = {{Arts and Humanities (miscellaneous), Developmental and Educational Psychology, Experimental and Cognitive Psychology, General Medicine}},
  pages        = {{823--833}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Is the head-fake effect in basketball robust against practice? Analyses of trial-by-trial adaptations, frequency distributions, and mixture effects to evaluate effects of practice}}},
  doi          = {{10.1007/s00426-018-1078-4}},
  volume       = {{84}},
  year         = {{2020}},
}

@article{37605,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>In three experiments, we investigated the effect of unconscious social priming on human behavior in a choice reaction time task. Photographs of a basketball player passing a ball to the left/right were used as target stimuli. Participants had to respond to the pass direction either by a whole-body (complex) response or a button-press (simple) response. Visually masked stimuli, showing both a task-relevant cue (pass direction) and a task-irrelevant, social cue (gaze direction), were used as primes. Subliminal social priming was found for kinematic (center of pressure) and chronometric measures (response times): gaze direction in the primes affected responses to the pass direction in the targets. The social priming effect diminished when gaze information was unhelpful or even detrimental to the task. Social priming of a complex behavior does not require awareness or intentionality, indicating automatic processing. Nevertheless, it can be controlled by top-down, strategic processes.</jats:p>}},
  author       = {{Schütz, Christoph and Güldenpenning, Iris and Koester, Dirk and Schack, Thomas}},
  issn         = {{2045-2322}},
  journal      = {{Scientific Reports}},
  keywords     = {{Multidisciplinary}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Social cues can impact complex behavior unconsciously}}},
  doi          = {{10.1038/s41598-020-77646-2}},
  volume       = {{10}},
  year         = {{2020}},
}

@article{37760,
  author       = {{Güldenpenning, Iris and Kunde, Wilfried and Weigelt, Matthias}},
  issn         = {{1612-197X}},
  journal      = {{International Journal of Sport and Exercise Psychology}},
  keywords     = {{Applied Psychology, Social Psychology}},
  number       = {{1}},
  pages        = {{202--222}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Head-fake perception in basketball: the relative contributions of expertise, visual or motor training, and test repetition}}},
  doi          = {{10.1080/1612197x.2020.1854819}},
  volume       = {{20}},
  year         = {{2020}},
}

@article{37785,
  author       = {{Güldenpenning, Iris and Weigelt, Matthias and Memmert, Daniel and Klatt, Stefanie}},
  issn         = {{1469-0292}},
  journal      = {{Psychology of Sport and Exercise}},
  keywords     = {{Applied Psychology}},
  pages        = {{101764}},
  publisher    = {{Elsevier BV}},
  title        = {{{Processing deceptive information in sports: Individual differences for responding to head fakes depends on the attentional capability of the observer}}},
  doi          = {{10.1016/j.psychsport.2020.101764}},
  volume       = {{51}},
  year         = {{2020}},
}

@article{37823,
  author       = {{Güldenpenning, Iris and Kunde, Wilfried and Weigelt, Matthias}},
  issn         = {{0001-6918}},
  journal      = {{Acta Psychologica}},
  keywords     = {{Arts and Humanities (miscellaneous), Developmental and Educational Psychology, Experimental and Cognitive Psychology, General Medicine}},
  pages        = {{103013}},
  publisher    = {{Elsevier BV}},
  title        = {{{Cognitive load reduces interference by head fakes in basketball}}},
  doi          = {{10.1016/j.actpsy.2020.103013}},
  volume       = {{203}},
  year         = {{2020}},
}

@inproceedings{47019,
  author       = {{Weigelt, Matthias and Güldenpenning, Iris and Steggemann-Weinrich, Y.}},
  booktitle    = {{Zukunft der Sportpsychologie zwischen Verstehen und Evidenz. Abstractband der 52. Jahrestagung der Arbeitsgemeinschaft für Sportpsychologie (asp)}},
  editor       = {{Amesberger, G. and Würth, S. and Finkenzeller, T.}},
  location     = {{Salzburg (online)}},
  pages        = {{155}},
  publisher    = {{Universität Salzburg}},
  title        = {{{No effect of social cues in antisocial behavior: The head-fake effect in basketball is not based on the processing of eye gaze direction}}},
  year         = {{2020}},
}

@inproceedings{47026,
  author       = {{Polzien, A. and Güldenpenning, Iris and Weigelt, Matthias}},
  booktitle    = {{Zukunft der Sportpsychologie zwischen Verstehen und Evidenz. Abstractband der 52. Jahrestagung der Arbeitsgemeinschaft für Sportpsychologie (asp)}},
  editor       = {{Amesberger, G. and Würth, S. and Finkenzeller, T.}},
  location     = {{Salzburg (online)}},
  pages        = {{154}},
  publisher    = {{Universität Salzburg}},
  title        = {{{Worauf basiert der Blicktäuschungseffekt im Basketball? Stimulus-Stimulus (S-S) vs. Stimulus-Response (S-R) Interferenz}}},
  year         = {{2020}},
}

@inproceedings{47016,
  author       = {{Weigelt, Matthias and Güldenpenning, Iris and Ste, Y.}},
  booktitle    = {{Abstracts of the 62nd Conference of Experimental Psychologists (TeaP)}},
  editor       = {{Dobel, C. and Giesen, C. and Grigutsch, L. A. and Kaufmann, J. M. and Kovács, G. and Meissner, F. and Rothermund, K. and Schweinberger, S. R.}},
  location     = {{Jena}},
  pages        = {{279}},
  publisher    = {{Pabst Science Publishers}},
  title        = {{{ The head-fake effect in  basketball is based on the automating processing of head orientation, but not on gaze  information}}},
  year         = {{2020}},
}

@inproceedings{47017,
  author       = {{Polzien, A. and Güldenpenning, Iris and Weigelt, Matthias}},
  booktitle    = {{Abstracts of the 62nd Conference of Experimental Psychologists (TeaP)}},
  editor       = {{Dobel, C. and Giesen, C. and Grigutsch, L. A. and Kaufmann, J. M. and Kovács, G. and Meissner, F. and Rothermund, K. and Schweinberger, S. R.}},
  location     = {{Jena}},
  pages        = {{200}},
  publisher    = {{Pabst Science Publishers}},
  title        = {{{Temporal distance between head turn and pass modulates the head fake effect in basketball}}},
  year         = {{2020}},
}

@inbook{47061,
  author       = {{Weigelt, Matthias and Krause, Daniel and Güldenpenning, Iris}},
  booktitle    = {{Sportpsychologie: Grundlagen und Anwendung}},
  editor       = {{Schüler, J, and Wegner, M. and Plessner, H.}},
  pages        = {{43–68}},
  publisher    = {{Springer}},
  title        = {{{Lernen und Gedächtnis im Sport}}},
  doi          = {{https://doi.org/10.1007/978-3-662-56802-6_3}},
  year         = {{2020}},
}

@inproceedings{17355,
  abstract     = {{Ultrasonic wire bonding is a process to form electrical connections in electronics well established industry. Typically, a clamping tool is pressed on the wire and forced to vibrate at relative high frequency 40 to 100 kHz. The ultrasonic vibration is transmitted through the wire into the interface between wire and substrate. Due to frictional processes, contamination like oxide layers are removed from the contact zone, the surface roughness is reduced, and with increasing bond duration an metallic connection of wire and substrate is established. It is known that the amount of ultrasonic energy over time directly influences the strength and reliability of the bond connection, but the determination of optimum bond parameters is still a challenging experimental task. For this, in the past different model approaches have been presented, to calculate the bond quality by simulation. Measuring the friction between wire and substrate to validate these models is a challenging task at ultrasonic bonding frequency. Therefore a versatile test rig for bonding experiments at frequencies lower than 1 kHz is setup to get detailed insight into the different phases of the connection process. It includes a piezoelectric force sensor for the measurement of the three-dimensional process forces, an electrodynamic shaker for the vibration excitation and a conventional tension-compression testing machine to apply the bond normal force. Using this test rig, it is possible to observe the different phases of bond formation in detail, validate and enhance existing models and finally optimize bond parameters for different processes.}},
  author       = {{Schemmel, Reinhard and Scheidemann, Claus and Hemsel, Tobias and Kirsch, Olaf  and Sextro, Walter}},
  booktitle    = {{CIPS 2020; 11th International Conference on Integrated Power Electronics Systems}},
  pages        = {{1--6}},
  title        = {{{Experimental analysis and modelling of bond formation in ultrasonic heavy wire bonding}}},
  year         = {{2020}},
}

@inproceedings{17810,
  abstract     = {{In all fields, the significance of a reliable and accurate predictive model is almost unquantifiable. With deep domain knowledge, models derived from first principles typically outperforms other models in terms of reliability and accuracy. When it may become a cumbersome or an unachievable task to build or validate such models of complex (non-linear) systems, machine learning techniques are employed to build predictive models. However, the accuracy of such techniques is not only dependent on the hyper-parameters of the chosen algorithm, but also on the amount and quality of data. This paper investigates the application of classical time series forecasting approaches for the reliable prognostics of technical systems, where black box machine learning techniques might not successfully be employed given insufficient amount of data and where first principles models are infeasible due to lack of domain specific data. Forecasting by analogy, forecasting by analytical function fitting, an exponential smoothing forecasting method and the long short-term memory (LSTM) are evaluated and compared against the ground truth data. As a case study, the methods are applied to predict future crack lengths of riveted aluminium plates under cyclic loading. The performance of the predictive models is evaluated based on error metrics leading to a proposal of when to apply which forecasting approach.}},
  author       = {{Aimiyekagbon, Osarenren Kennedy and Bender, Amelie and Sextro, Walter}},
  booktitle    = {{PHM Society European Conference}},
  keywords     = {{PHM 2019, crack propagation, forecasting, unevenly spaced time series, step ahead prediction, short time series}},
  number       = {{1}},
  title        = {{{Evaluation of time series forecasting approaches for the reliable crack length prediction of riveted aluminium plates given insufficient data}}},
  volume       = {{5}},
  year         = {{2020}},
}

@inproceedings{21632,
  abstract     = {{FPGAs have found increasing adoption in data center applications since a new generation of high-level tools have become available which noticeably reduce development time for FPGA accelerators and still provide high-quality results. There is, however, no high-level benchmark suite available, which specifically enables a comparison of FPGA architectures, programming tools, and libraries for HPC applications. To fill this gap, we have developed an OpenCL-based open-source implementation of the HPCC benchmark suite for Xilinx and Intel FPGAs. This benchmark can serve to analyze the current capabilities of FPGA devices, cards, and development tool flows, track progress over time, and point out specific difficulties for FPGA acceleration in the HPC domain. Additionally, the benchmark documents proven performance optimization patterns. We will continue optimizing and porting the benchmark for new generations of FPGAs and design tools and encourage active participation to create a valuable tool for the community. To fill this gap, we have developed an OpenCL-based open-source implementation of the HPCC benchmark suite for Xilinx and Intel FPGAs. This benchmark can serve to analyze the current capabilities of FPGA devices, cards, and development tool flows, track progress over time, and point out specific difficulties for FPGA acceleration in the HPC domain. Additionally, the benchmark documents proven performance optimization patterns. We will continue optimizing and porting the benchmark for new generations of FPGAs and design tools and encourage active participation to create a valuable tool for the community.}},
  author       = {{Meyer, Marius and Kenter, Tobias and Plessl, Christian}},
  booktitle    = {{2020 IEEE/ACM International Workshop on Heterogeneous High-performance Reconfigurable Computing (H2RC)}},
  isbn         = {{9781665415927}},
  keywords     = {{FPGA, OpenCL, High Level Synthesis, HPC benchmarking}},
  title        = {{{Evaluating FPGA Accelerator Performance with a Parameterized OpenCL Adaptation of Selected Benchmarks of the HPCChallenge Benchmark Suite}}},
  doi          = {{10.1109/h2rc51942.2020.00007}},
  year         = {{2020}},
}

@article{12878,
  abstract     = {{In scientific computing, the acceleration of atomistic computer simulations by means of custom hardware is finding ever-growing application. A major limitation, however, is that the high efficiency in terms of performance and low power consumption entails the massive usage of low precision computing units. Here, based on the approximate computing paradigm, we present an algorithmic method to compensate for numerical inaccuracies due to low accuracy arithmetic operations rigorously, yet still obtaining exact expectation values using a properly modified Langevin-type equation.}},
  author       = {{Rengaraj, Varadarajan and Lass, Michael and Plessl, Christian and Kühne, Thomas}},
  journal      = {{Computation}},
  number       = {{2}},
  publisher    = {{MDPI}},
  title        = {{{Accurate Sampling with Noisy Forces from Approximate Computing}}},
  doi          = {{10.3390/computation8020039}},
  volume       = {{8}},
  year         = {{2020}},
}

@article{59686,
  abstract     = {{The monolithic growth of III–V materials directly on Si substrates provides a promising integration approach for passive and active silicon photonic integrated circuits but still faces great challenges in crystal quality due to misfit defect formation. Nano-ridge engineering is a new approach that enables the integration of III–V based devices on trench-patterned Si substrates with very high crystal quality. Using selective area growth, the III–V material is deposited into narrow trenches to reduce the dislocation defect density by aspect ratio trapping. The growth is continued out of the trench pattern and a box-shaped III–V nano-ridge is engineered by adjusting the growth parameters. A flat (001) GaAs nano-ridge surface enables the epitaxial integration of a common InGaAs/GaAs multi-quantum-well (MQW) structure as an optical gain medium to build a laser diode. In this study, a clear correlation is found between the photoluminescence (PL) lifetime, extracted from time-resolved photoluminescence (TRPL) measurements, with the InGaAs/GaAs nano-ridge size and defect density, which are both predefined by the nano-ridge related pattern trench width. Through the addition of an InGaP passivation layer, a MQW PL lifetime of up to 800 ps and 1000 ps is measured when pumped at 900 nm (only QWs were excited) and 800 nm (QWs + barrier excited), respectively. The addition of a bottom carrier blocking layer further increases this lifetime to ∼2.5ns (pumped at 800 nm), which clearly demonstrates the high crystal quality of the nano-ridge material. These TRPL measurements not only deliver quick and valuable feedback about the III–V material quality but also provide an important understanding for the heterostructure design and carrier confinement of the nano-ridge laser diode.}},
  author       = {{Shi, Yuting and Kreuzer, Lisa C. and Gerhardt, Nils Christopher and Pantouvaki, Marianna and Van Campenhout, Joris and Baryshnikova, Marina and Langer, Robert and Van Thourhout, Dries and Kunert, Bernardette}},
  issn         = {{0021-8979}},
  journal      = {{Journal of Applied Physics}},
  number       = {{10}},
  publisher    = {{AIP Publishing}},
  title        = {{{Time-resolved photoluminescence characterization of InGaAs/GaAs nano-ridges monolithically grown on 300 mm Si substrates}}},
  doi          = {{10.1063/1.5139636}},
  volume       = {{127}},
  year         = {{2020}},
}