TY - JOUR
AB - AbstractPure iron is very attractive as a biodegradable implant material due to its high biocompatibility. In combination with additive manufacturing, which facilitates great flexibility of the implant design, it is possible to selectively adjust the microstructure of the material in the process, thereby control the corrosion and fatigue behavior. In the present study, conventional hot-rolled (HR) pure iron is compared to pure iron manufactured by electron beam melting (EBM). The microstructure, the corrosion behavior and the fatigue properties were studied comprehensively. The investigated sample conditions showed significant differences in the microstructures that led to changes in corrosion and fatigue properties. The EBM iron showed significantly lower fatigue strength compared to the HR iron. These different fatigue responses were observed under purely mechanical loading as well as with superimposed corrosion influence and are summarized in a model that describes the underlying failure mechanisms.
AU - Wackenrohr, Steffen
AU - Torrent, Christof Johannes Jaime
AU - Herbst, Sebastian
AU - Nürnberger, Florian
AU - Krooss, Philipp
AU - Ebbert, Christoph
AU - Voigt, Markus
AU - Grundmeier, Guido
AU - Niendorf, Thomas
AU - Maier, Hans Jürgen
ID - 30922
IS - 1
JF - npj Materials Degradation
KW - Materials Chemistry
KW - Materials Science (miscellaneous)
KW - Chemistry (miscellaneous)
KW - Ceramics and Composites
SN - 2397-2106
TI - Corrosion fatigue behavior of electron beam melted iron in simulated body fluid
VL - 6
ER -
TY - JOUR
AB - Additive manufacturing (AM) processes are not solely used where maximum design freedom meets low lot sizes. Direct microstructure design and topology optimization can be realized concomitantly during processing by adjusting the geometry, the material composition, and the solidification behavior of the material considered. However, when complex specific requirements have to be met, a targeted part design is highly challenging. In the field of biodegradable implant surgery, a cytocompatible material of an application-adapted shape has to be characterized by a specific degradation behavior and reliably predictable mechanical properties. For instance, small amounts of oxides can have a significant effect on microstructural development, thus likewise affecting the strength and corrosion behavior of the processed material. In the present study, biocompatible pure Fe was processed using electron powder bed fusion (E-PBF). Two different modifications of the Fe were processed by incorporating Fe oxide and Ce oxide in different proportions in order to assess their impact on the microstructural evolution, the mechanical response and the corrosion behavior. The quasistatic mechanical and chemical properties were analyzed and correlated with the final microstructural appearance.
AU - Torrent, Christof J. J.
AU - Krooß, Philipp
AU - Huang, Jingyuan
AU - Voigt, Markus
AU - Ebbert, Christoph
AU - Knust, Steffen
AU - Grundmeier, Guido
AU - Niendorf, Thomas
ID - 30923
IS - 1
JF - Alloys
SN - 2674-063X
TI - Oxide Modified Iron in Electron Beam Powder Bed Fusion—From Processability to Corrosion Properties
VL - 1
ER -
TY - JOUR
AU - Schall, Christoph Wilhelm Theodor
AU - Schöppner, Volker
ID - 29947
IS - 3
JF - Polymer Engineering and Science
KW - Computing Resources Provided by the Paderborn Center for Parallel Computing
TI - Measurement of material degradation in dependence of shear rate, temperature, and residence time
VL - 62
ER -
TY - JOUR
AB - The presented paper aims to characterize the damage and fracture behavior of HX340LAD Micro-Alloyed steels using small punch test. Variations with respect to punch geometries and cutting clearance are made to describe the damage behavior of the material under different loading conditions. Experimental investigations are conducted to identify the crack initiation in the specimens. Furthermore, the numerical FEM simulations are performed to identify the stress state at crack initiation. It is shown that different stress states from shear to biaxial tension can be achieved by changing the geometries of punch and varying the cutting clearance. Moreover, it is presented how changing the configurations can influence the stress state variables: Triaxiality and lode angle parameter.
AU - Otroshi, Mortaza
AU - Meschut, Gerson
ID - 27186
IS - c
JF - Engineering Failure Analysis
KW - Ductile damage
KW - stress state
KW - small punch test
KW - triaxiality
KW - lode angle parameter
SN - 1350-6307
TI - Influence of cutting clearance and punch geometry on the stress state in small punch test
VL - 136
ER -
TY - CONF
AU - Chudalla, Nick
AU - Teutenberg, Dominik
AU - Meschut, Gerson
AU - Schneider, Miriam
AU - Smart, Dominik
ID - 30004
T2 - 22. Kolloquium: Gemeinsame Forschung in der Klebtechnik
TI - Systematisierung einer rechnergestützten Auswertemethode zur Versagensanalyse geklebter Verbindungen
ER -
TY - JOUR
AU - Reineke Matsudo, Bernhard
AU - Sain, Basudeb
AU - Carletti, Luca
AU - Zhang, Xue
AU - Gao, Wenlong
AU - Angelis, Costantino
AU - Huang, Lingling
AU - Zentgraf, Thomas
ID - 29902
IS - 12
JF - Advanced Science
KW - General Physics and Astronomy
KW - General Engineering
KW - Biochemistry
KW - Genetics and Molecular Biology (miscellaneous)
KW - General Materials Science
KW - General Chemical Engineering
KW - Medicine (miscellaneous)
SN - 2198-3844
TI - Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces
VL - 9
ER -
TY - JOUR
AU - Vorderbrüggen, Julian
AU - Köhler, Daniel
AU - Grüber, Bernd
AU - Troschitz, Juliane
AU - Gude, Maik
AU - Meschut, Gerson
ID - 30911
JF - Composite Structures
KW - Civil and Structural Engineering
KW - Ceramics and Composites
SN - 0263-8223
TI - Development of a rivet geometry for solid self-piercing riveting of thermally loaded CFRP-metal joints in automotive construction
VL - 291
ER -
TY - JOUR
AB - The process chain for the manufacturing of sheet metal components in mass production includes various cutting and forming operations, which influence the resulting properties of the parts and therefore subsequent manufacturing steps, such as clamping and joining. It is shown that clamping of the components leads to superimposed residual stresses and geometry changes. Therefore, the part properties differ from the initial state of the semifinished products, which has to be considered in the design of clinched joints. This paper presents an approach for coupled determination of the properties of semifinished and finished parts during deep drawing and clamping as well as their effects on the joint quality during clinching. One method for the effective and efficient determination of the properties of semifinished products and components during production is using process data from the preceding manufacturing processes, which is concretely presented in this work. In addition to the interconnection of the entire production chain, it is necessary to define relevant process data for each individual manufacturing step and to correlate the data with the material properties reliably. Therefore, the cross-process interactions of different steps of the process chain for the manufacturing of sheet metal components and the effect of process variations on subsequent manufacturing steps are investigated. Consequently, the boundary conditions for a mechanical joining process based on data from preceding process steps can be predicted.
AU - Heyser, Per
AU - Wiesenmayer, S
AU - Frey, P
AU - Nehls, T
AU - Scharr, C
AU - Flügge, W
AU - Merklein, M
AU - Meschut, Gerson
ID - 30904
JF - Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
KW - Mechanical Engineering
KW - General Materials Science
SN - 1464-4207
TI - Consideration of the manufacturing history of sheet metal components for the adaptation of a clinching process
ER -
TY - CHAP
AU - Yigitbas, Enes
AU - Sauer, Stefan
AU - Engels, Gregor
ED - Vogel-Heuser, Birgit
ED - Wimmer, Manuel
ID - 29928
T2 - Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective
TI - Self-Adaptive Digital Assistance Systems for Work 4.0
ER -
TY - JOUR
AU - Gao, Wenlong
AU - Sain, Basudeb
AU - Zentgraf, Thomas
ID - 30964
IS - 4
JF - Physical Review Applied
KW - General Physics and Astronomy
SN - 2331-7019
TI - Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces
VL - 17
ER -
TY - JOUR
AB - We study output reference tracking of systems with high relative degree via output feedback only; this is, tracking where the output derivatives are unknown.
To this end, we prove that the conjunction of the funnel pre-compensator with a minimum phase system of arbitrary relative degree yields a system of the same relative degree which is minimum phase as well.
The error between the original system's output and the pre-compensator's output evolves within a prescribed performance funnel; and moreover, the derivatives of the funnel pre-compensator's output are known explicitly.
Therefore, output reference tracking with prescribed transient behavior of the tracking error is possible without knowledge of the derivatives of the original system's output; via funnel control schemes for instance.
AU - Lanza, Lukas Johannes
ID - 23398
JF - Mathematics of Control, Signals, and Systems
TI - Output feedback control with prescribed performance via funnel pre-compensator
ER -
TY - CONF
AU - Hansmeier, Tim
AU - Platzner, Marco
ID - 30971
SN - 0302-9743
T2 - Applications of Evolutionary Computation, EvoApplications 2022, Proceedings
TI - Integrating Safety Guarantees into the Learning Classifier System XCS
VL - 13224
ER -
TY - JOUR
AU - Chudalla, Nick
AU - Meschut, Gerson
AU - Bartley, Aurélie
AU - Wibbeke, Tim Michael
ID - 30915
IS - 4
JF - adhäsion KLEBEN & DICHTEN
KW - Polymers and Plastics
KW - General Chemical Engineering
KW - General Chemistry
SN - 1619-1919
TI - Bauteilschonendes Entfügen struktureller Klebverbindungen durch Kälte
VL - 66
ER -
TY - JOUR
AU - Feldmann, Michael
AU - Padalkin, Andreas
AU - Scheideler, Christian
AU - Dolev, Shlomi
ID - 31060
IS - 4
JF - J. Comput. Biol.
TI - Coordinating Amoebots via Reconfigurable Circuits
VL - 29
ER -
TY - JOUR
AU - Xin, Yang
AU - Piskunen, Petteri
AU - Suma, Antonio
AU - Li, Changyong
AU - Ijäs, Heini
AU - Ojasalo, Sofia
AU - Seitz, Iris
AU - Kostiainen, Mauri A.
AU - Grundmeier, Guido
AU - Linko, Veikko
AU - Keller, Adrian
ID - 30738
JF - Small
KW - Biomaterials
KW - Biotechnology
KW - General Materials Science
KW - General Chemistry
SN - 1613-6810
TI - Environment‐Dependent Stability and Mechanical Properties of DNA Origami Six‐Helix Bundles with Different Crossover Spacings
VL - 18
ER -
TY - CONF
AU - Wende, Marc
AU - Fischer, Florian
AU - Kenig, Eugeny
ID - 31069
T2 - Jahrestreffen der ProcessNet Fachgruppen Fluidverfahrenstechnik und Hochdruckverfahrenstechnik
TI - Experimentelle Untersuchung und Modellvalidierung zur Gravidestillation
ER -
TY - GEN
AU - Hopp, Matthias
AU - Tölle, Lisa
ID - 31789
T2 - Journal of Applied Polymer Science
TI - Influence of process parameters on the formation of inhalable fiber dust during shredding for mechanical recycling of fiber‐reinforced organo sheets
ER -
TY - GEN
AU - Hopp, Matthias
AU - Tölle, Lisa
AU - Bünger, J.
AU - Westphal, G.
AU - Rosenkranz, N.
AU - Monsé, C.
ID - 31788
T2 - Kunststoffe international
TI - Fiber Dust Formation during the Recycling of FRP
ER -
TY - GEN
AU - Hopp, Matthias
AU - Tölle, Lisa
AU - Bünger, J.
AU - Westphal, G.
AU - Rosenkranz, N.
AU - Monsé, C.
ID - 31787
T2 - Kunststoffe
TI - Faserstäube beim FVK-Recycling
ER -
TY - JOUR
AB - Encrypting data before sending it to the cloud ensures data confidentiality but requires the cloud to compute on encrypted data. Trusted execution environments, such as Intel SGX enclaves, promise to provide a secure environment in which data can be decrypted and then processed. However, vulnerabilities in the executed program give attackers ample opportunities to execute arbitrary code inside the enclave. This code can modify the dataflow of the program and leak secrets via SGX side channels. Fully homomorphic encryption would be an alternative to compute on encrypted data without data leaks. However, due to its high computational complexity, its applicability to general-purpose computing remains limited. Researchers have made several proposals for transforming programs to perform encrypted computations on less powerful encryption schemes. Yet current approaches do not support programs making control-flow decisions based on encrypted data.
We introduce the concept of
dataflow authentication
(DFAuth) to enable such programs. DFAuth prevents an adversary from arbitrarily deviating from the dataflow of a program. Our technique hence offers protections against the side-channel attacks described previously. We implemented two flavors of DFAuth, a Java bytecode-to-bytecode compiler, and an SGX enclave running a small and program-independent trusted code base. We applied DFAuth to a neural network performing machine learning on sensitive medical data and a smart charging scheduler for electric vehicles. Our transformation yields a neural network with encrypted weights, which can be evaluated on encrypted inputs in
\( 12.55 \,\mathrm{m}\mathrm{s} \)
. Our protected scheduler is capable of updating the encrypted charging plan in approximately 1.06 seconds.
AU - Fischer, Andreas
AU - Fuhry, Benny
AU - Kußmaul, Jörn
AU - Janneck, Jonas
AU - Kerschbaum, Florian
AU - Bodden, Eric
ID - 31844
IS - 3
JF - ACM Transactions on Privacy and Security
KW - Safety
KW - Risk
KW - Reliability and Quality
KW - General Computer Science
SN - 2471-2566
TI - Computation on Encrypted Data Using Dataflow Authentication
VL - 25
ER -
TY - JOUR
AU - Stöckmann, Nico
ID - 31327
IS - 01
JF - Theoretical Economics Letters
SN - 2162-2078
TI - Conditional Beta-Convergence by Gravity
VL - 12
ER -
TY - GEN
AU - Hillebrandt, Henning
ID - 31947
TI - Verteiltes Berechnen kompakter Routingtabellen in Unit Disk Graphen
ER -
TY - JOUR
AU - Ren, Jiahuan
AU - Liao, Qing
AU - Ma, Xuekai
AU - Schumacher, Stefan
AU - Yao, Jiannian
AU - Fu, Hongbing
ID - 30966
IS - 1
JF - Laser & Photonics Reviews
SN - 1863-8880
TI - Realization of Exciton‐Mediated Optical Spin‐Orbit Interaction in Organic Microcrystalline Resonators
VL - 16
ER -
TY - JOUR
AU - Zhang, Xiu
AU - Chen, Zhenshi
AU - Liu, Dong
AU - Wan, Lei
AU - Ma, Xuekai
AU - Gao, Tingge
ID - 30967
IS - 2
JF - Applied Physics Express
SN - 1882-0778
TI - Controlling exciton distribution in WS2 monolayer on a photonic crystal
VL - 15
ER -
TY - JOUR
AU - Wingenbach, Jan
AU - Pukrop, Matthias
AU - Schumacher, Stefan
AU - Ma, Xuekai
ID - 31938
IS - 24
JF - Physical Review B
TI - Dynamics of phase defects trapped in optically imprinted orbits in dissipative binary polariton condensates
VL - 105
ER -
TY - JOUR
AB - AbstractWe show that for a generic conformal metric perturbation of a compact hyperbolic 3-manifold $$\Sigma $$
Σ
with Betti number $$b_1$$
b
1
, the order of vanishing of the Ruelle zeta function at zero equals $$4-b_1$$
4
-
b
1
, while in the hyperbolic case it is equal to $$4-2b_1$$
4
-
2
b
1
. This is in contrast to the 2-dimensional case where the order of vanishing is a topological invariant. The proof uses the microlocal approach to dynamical zeta functions, giving a geometric description of generalized Pollicott–Ruelle resonant differential forms at 0 in the hyperbolic case and using first variation for the perturbation. To show that the first variation is generically nonzero we introduce a new identity relating pushforwards of products of resonant and coresonant 2-forms on the sphere bundle $$S\Sigma $$
S
Σ
with harmonic 1-forms on $$\Sigma $$
Σ
.
AU - Cekić, Mihajlo
AU - Delarue, Benjamin
AU - Dyatlov, Semyon
AU - Paternain, Gabriel P.
ID - 31982
IS - 1
JF - Inventiones mathematicae
KW - General Mathematics
SN - 0020-9910
TI - The Ruelle zeta function at zero for nearly hyperbolic 3-manifolds
VL - 229
ER -
TY - JOUR
AU - Henksmeier, T.
AU - Schulz, J.F.
AU - Kluth, E.
AU - Feneberg, M.
AU - Goldhahn, R.
AU - Sanchez, A.M.
AU - Voigt, M.
AU - Grundmeier, Guido
AU - Reuter, Dirk
ID - 32108
JF - Journal of Crystal Growth
KW - Materials Chemistry
KW - Inorganic Chemistry
KW - Condensed Matter Physics
SN - 0022-0248
TI - Remote epitaxy of InxGa1-xAs (0 0 1) on graphene covered GaAs(0 0 1) substrates
VL - 593
ER -
TY - GEN
AU - Beule, Felix
AU - Teutenberg, Dominik
AU - Meschut, Gerson
AU - Aubel, Tobias
AU - Matzenmiller, Anton
ID - 32155
T2 - Proceedings of the 6th Conference on Steels in Cars and Trucks
TI - Influence of curing-induced pre-deformations on the mechanical properties of adhesively bonded joints in steel-intensive mixed-material structures
ER -
TY - GEN
AB - We investigate the early time development of the anisotropic transverse flow
and spatial eccentricities of a fireball with various particle-based transport
approaches using a fixed initial condition. In numerical simulations ranging
from the quasi-collisionless case to the hydrodynamic regime, we find that the
onset of $v_n$ and of related measures of anisotropic flow can be described
with a simple power-law ansatz, with an exponent that depends on the amount of
rescatterings in the system. In the few-rescatterings regime we perform
semi-analytical calculations, based on a systematic expansion in powers of time
and the cross section, which can reproduce the numerical findings.
AU - Borghini, Nicolas
AU - Borrell, Marc
AU - Roch, Hendrik
ID - 32177
T2 - arXiv:2201.13294
TI - Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers
ER -
TY - JOUR
AU - Meschede, Henning
AU - Bertheau, Paul
AU - Khalili, Siavash
AU - Breyer, Christian
ID - 32180
JF - WIREs Energy and Environment
KW - General Environmental Science
KW - Renewable Energy
KW - Sustainability and the Environment
SN - 2041-8396
TI - A review of 100% renewable energy scenarios on islands
ER -
TY - GEN
AB - We test the ability of the "escape mechanism" to create the anisotropic flow
observed in high-energy nuclear collisions. We compare the flow harmonics $v_n$
in the few-rescatterings regime from two types of transport simulations, with
$2\to 2$ and $2\to 0$ collision kernels respectively, and from analytical
calculations neglecting the gain term of the Boltzmann equation. We find that
the even flow harmonics are similar in the three approaches, while the odd
harmonics differ significantly.
AU - Bachmann, Benedikt
AU - Borghini, Nicolas
AU - Feld, Nina
AU - Roch, Hendrik
ID - 32178
T2 - arXiv:2203.13306
TI - Even anisotropic-flow harmonics are from Venus, odd ones are from Mars
ER -
TY - JOUR
AU - Hou, W
AU - Yao, Y
AU - Li, Y
AU - Peng, B
AU - Shi, K
AU - Zhou, Z
AU - Pan, J
AU - Liu, M
AU - Hu, J
ID - 32183
IS - 1
JF - Frontiers of materials science
SN - 2095-025x
TI - Linearly shifting ferromagnetic resonance response of La0.7Sr0.3MnO3 thin film for body temperature sensors
VL - 16
ER -
TY - JOUR
AU - Wojciechowski, M
ID - 32234
JF - Data Brief
SN - 2352-3409
TI - Dataset for random uniform distributions of 2D circles and 3D spheres.
VL - 43
ER -
TY - JOUR
AU - Hunter, I
AU - Norton, MM
AU - Chen, B
AU - Simonetti, C
AU - Moustaka, ME
AU - Touboul, J
AU - Fraden, S
ID - 32239
IS - 2-1
JF - Phys Rev E
SN - 2470-0045
TI - Pattern formation in a four-ring reaction-diffusion network with heterogeneity.
VL - 105
ER -
TY - JOUR
AB - Furfuryl amine-functionalized few-layered graphene was prepared via a mechanochemical process by a [4 + 2] cycloaddition under solvent-free conditions.
AU - Filvan Torkaman, Najmeh
AU - Kley, Marina
AU - Bremser, Wolfgang
AU - Wilhelm, René
ID - 32263
IS - 27
JF - RSC Advances
KW - General Chemical Engineering
KW - General Chemistry
SN - 2046-2069
TI - Reversible functionalization and exfoliation of graphite by a Diels–Alder reaction with furfuryl amine
VL - 12
ER -
TY - JOUR
AU - Hoppe, Julia Amelie
AU - Melkas, Helinä
AU - Pekkarinen, Satu
AU - Tuisku, Outi
AU - Hennala, Lea
AU - Johansson-Pajala, Rose-Marie
AU - Gustafsson, Christine
AU - Thommes, Kirsten
ID - 32266
JF - International Journal of Human–Computer Interaction
KW - Computer Science Applications
KW - Human-Computer Interaction
KW - Human Factors and Ergonomics
SN - 1044-7318
TI - Perception of Society’s Trust in Care Robots by Public Opinion Leaders
ER -
TY - JOUR
AU - Hoppe, Julia Amelie
AU - Melkas, Helinä
AU - Pekkarinen, Satu
AU - Tuisku, Outi
AU - Hennala, Lea
AU - Johansson-Pajala, Rose-Marie
AU - Gustafsson, Christine
AU - Thommes, Kirsten
ID - 32267
JF - International Journal of Human–Computer Interaction
KW - Computer Science Applications
KW - Human-Computer Interaction
KW - Human Factors and Ergonomics
SN - 1044-7318
TI - Perception of Society’s Trust in Care Robots by Public Opinion Leaders
ER -
TY - CHAP
AU - Akkerman, Agnes
AU - Manevska, Katerina
AU - Thommes, Kirsten
AU - Sluiter, Roderick
ID - 32272
SN - 9781003125730
T2 - Employment Relations as Networks
TI - Losing What You Never Had
ER -
TY - GEN
AU - Schmolke, Tobias
AU - Meschut, Gerson
ID - 32279
T2 - Proceedings of the 6th Conference on Steels in Cars and Trucks
TI - Investigation of leak tightness for bonded steel joints induced by mechanical and corrosive load for use in battery housings
ER -
TY - JOUR
AU - Poniatowski, Martin
AU - Lüttenberg, Hedda
AU - Beverungen, Daniel
AU - Kundisch, Dennis
ID - 17869
JF - Information Systems and e-Business Management, Special Issue on Platform Business Models and Platform Strategies
TI - Three Layers of Abstraction—A Conceptual Framework for Theorizing digital Multi-Sided Platforms
VL - 2
ER -
TY - CONF
AB - Testing is one of the most frequent means of quality assurance for software. Property-based testing aims at generating test suites for checking code against user-defined properties. Test input generation is, however, most often independent of the property to be checked, and is instead based on random or user-defined data generation.In this paper, we present property-driven unit testing of functions with numerical inputs and outputs. Alike property-based testing, it allows users to define the properties to be tested for. Contrary to property-based testing, it also uses the property for a targeted generation of test inputs. Our approach is a form of learning-based testing where we first of all learn a model of a given black-box function using standard machine learning algorithms, and in a second step use model and property for test input generation. This allows us to test both predefined functions as well as machine learned regression models. Our experimental evaluation shows that our property-driven approach is more effective than standard property-based testing techniques.
AU - Sharma, Arnab
AU - Melnikov, Vitaly
AU - Hüllermeier, Eyke
AU - Wehrheim, Heike
ID - 32311
T2 - Proceedings of the 10th IEEE/ACM International Conference on Formal Methods in Software Engineering (FormaliSE)
TI - Property-Driven Testing of Black-Box Functions
ER -
TY - CONF
AB - To build successful software products, developers continuously have to discover what features the users really need. This discovery can be achieved with continuous experimentation, testing different software variants with distinct user groups, and deploying the superior variant for all users. However, existing approaches do not focus on explicit modeling of variants and experiments, which offers advantages such as traceability of decisions and combinability of experiments. Therefore, our vision is the provision of model-driven continuous experimentation, which provides the developer with a framework for structuring the experimentation process. For that, we introduce the overall concept, apply it to the experimentation on component-based software architectures and point out future research questions. In particular, we show the applicability by combining feature models for modeling the software variants, users, and experiments (i.e., model-driven) with MAPE-K for the adaptation (i.e., continuous experimentation) and implementing the concept based on the component-based Angular framework.
AU - Gottschalk, Sebastian
AU - Yigitbas, Enes
AU - Engels, Gregor
ID - 29842
KW - continuous experimentation
KW - model-driven
KW - component-based software architectures
KW - self-adaptation
T2 - Proceedings of the 18th International Conference on Software Architecture Companion
TI - Model-driven Continuous Experimentation on Component-based Software Architectures
ER -
TY - JOUR
AU - Kißling, Magdalena
ID - 32319
JF - Der Deutschunterricht (1)
TI - „Beim Ausschneiden zeigen die Wörter mir ihre Bestandteile.“ Memoria als Deutungsöffnung bei Herta Müller
ER -
TY - JOUR
AU - Kißling, Magdalena
ID - 32320
JF - IMST-Newsletter (53)
TI - Bildungsverantwortung im Deutschunterricht. Thesen zu einem bildungsgerechten Literaturunterricht
ER -
TY - JOUR
AU - Huang, Jingyuan
AU - Voigt, Markus
AU - Wackenrohr, Steffen
AU - Ebbert, Christoph
AU - Keller, Adrian
AU - Maier, Hans Jürgen
AU - Grundmeier, Guido
ID - 29806
JF - Materials and Corrosion
KW - Materials Chemistry
KW - Metals and Alloys
KW - Surfaces
KW - Coatings and Films
KW - Mechanical Engineering
KW - Mechanics of Materials
KW - Environmental Chemistry
KW - Materials Chemistry
KW - Metals and Alloys
KW - Surfaces
KW - Coatings and Films
KW - Mechanical Engineering
KW - Mechanics of Materials
KW - Environmental Chemistry
KW - Materials Chemistry
KW - Metals and Alloys
KW - Surfaces
KW - Coatings and Films
KW - Mechanical Engineering
KW - Mechanics of Materials
KW - Environmental Chemistry
SN - 0947-5117
TI - Influence of hydrogel coatings on corrosion and fatigue of iron in simulated body fluid
VL - 73
ER -
TY - CHAP
AU - Häsel-Weide, Uta
AU - Wallner, Melina
AU - Hattermann, M.
ED - Gutzmann, M.
ED - Carle, U.
ID - 32233
T2 - Anfangsunterricht für alle Kinder - Willkommen in der Schule!
TI - Symmetrieverständnis von Anfang an
ER -
TY - JOUR
AU - Krüger, Jan Tobias
AU - Hoyer, Kay-Peter
AU - Hengsbach, Florian
AU - Schaper, Mirko
ID - 32330
JF - Journal of Materials Research and Technology
KW - Metals and Alloys
KW - Surfaces
KW - Coatings and Films
KW - Biomaterials
KW - Ceramics and Composites
SN - 2238-7854
TI - Formation of insoluble silver-phases in an iron-manganese matrix for bioresorbable implants using varying laser beam melting strategies
VL - 19
ER -
TY - CONF
AU - Chudalla, Nick
AU - Bartley, Aurélie
AU - Ditter, Jan
AU - Meschut, Gerson
AU - Wibbeke, Tim Michael
ID - 32329
TI - Disjoining and repair strategies of structural joints in automotive lightweight structures
ER -
TY - JOUR
AB - Aspects of data science surround us in many contexts, for example regarding climate change, air pollution, and other environmental issues. To open the “data-science-black-box” for lower secondary school students we developed a data science project focussing on the analysis of self-collected environmental data. We embed this project in computer science education, which enables us to use a new knowledge-based programming approach for the data analysis within Jupyter Notebooks and the programming language Python. In this paper, we evaluate the second cycle of this project which took place in a ninth-grade computer science class. In particular, we present how the students coped with the professional tool of Jupyter Notebooks for doing statistical investigations and which insights they gained.
AU - PODWORNY, SUSANNE
AU - Hüsing, Sven
AU - SCHULTE, CARSTEN
ID - 32335
IS - 2
JF - STATISTICS EDUCATION RESEARCH JOURNAL
KW - Education
KW - Statistics and Probability
SN - 1570-1824
TI - A PLACE FOR A DATA SCIENCE PROJECT IN SCHOOL: BETWEEN STATISTICS AND EPISTEMIC PROGRAMMING
VL - 21
ER -
TY - CONF
AB - The market for microinverters is growing, especially in Europe. Driven by the strongly rising prices for electricity, many small photovoltaic energy systems are being installed. Since monitoring for these plants is often quite costly, their yields are often not logged. Since 2014, microinverters have been studied at the University of Paderborn. The investigations are divided into indoor and outdoor tests. In the indoor area conversion efficiencies as a function of load have been measured with high accuracy and ranked according to Euro- and CEC weightings. In the outdoor laboratory, the behavior in the real world is tested. Energy yields have been measured outdoors via identical and calibrated crystalline silicon PV modules. Here, the investigations were carried out with modules of the power of 215 Wp until the year 2020. Because of the increasing module power nowadays, modules with an output of 360 Wp are now being used. To assess the influence of PV module size, two extremes have been investigated: A rather small module with 215 Wp - as it has been used 10 years ago, and a brand-new module (2021) offering 360 Wp. Both types of modules contain 60 solar cells in series connection. Appling the low-power modules, the challenge for the different micro-inverters has been during weak-light conditions, using the high-power modules, some inverters temporarily reach their power limits and yield is reduced. A method using a reference configuration of inverter & module and a linear equation resulting in the actual yield, any module & inverter configuration can be characterized by just the two coefficients.
AU - Krauter, Stefan
AU - Bendfeld, Jörg
AU - Möller, Marius Claus
ID - 32334
T2 - Proceedings of the 49th IEEE Photovoltaic Specialists Conference
TI - Microinverter testing update using high power modules: Efficiency, yield, and conformity to a new ”estimation formula” for variation of PV panel size
ER -
TY - CHAP
AU - Häsel-Weide, Uta
AU - Seitz, S.
AU - Wallner, Melina
AU - Wilke, Y.
ED - Lutz, D.
ED - Becker, J.
ED - Buchhaupt, F.
ED - Katzenbach, D.
ED - Strecker, A.
ED - Urban, M.
ID - 32339
T2 - Qualifizierung für Inklusion. Sekundarstufe
TI - Professionalisierung für inklusiven Mathematikunterricht. Interdisziplinäre Seminarkonzeption zur reflexiven Professionalisierung angehender Mathematiklehrkräfte in der Sekundarstufe
ER -
TY - JOUR
AU - Hähn, K.
AU - Häsel-Weide, Uta
AU - Scherer, P.
ID - 32338
IS - 2
JF - QfI - Qualifizierung für Inklusion
TI - Diagnosegeleitete Förderung im inklusiven Mathematikunterricht der Grundschule – Professionalisierung durch reflektierte Handlungspraxis in der Lehrer*innenbildung.
VL - 3
ER -
TY - CONF
AB - This paper provides a hybrid energy system model created in Matlab/Simulink which is based on photovoltaics as its main energy source. The model includes a hybrid energy storage which consists of a short-term lithium-ion battery and hydrogen as long-term storage to ensure autonomy even during periods of low PV production (e.g., in winter). The sectors heat and electricity are coupled by using the waste-heat generated by production and reconversion of hydrogen through an electrolyser respectively a fuel cell. A heat pump has been considered to cover the residual heat demand (for well insulated homes). Within this paper a model of the space heating system as well as the hot water heating system is presented. The model is designed for the simulation and analysis of a whole year energy flow by using a time series of loads, weather and heat profiles as input. Moreover, results of the energy balance within the energy system by simulation of a complete year by varying the orientation (elevation and azimuth) of the PV system and the component sizing, such as the lithium-ion battery capacity, are presented. It turned out that a high amount of heating energy can be saved by using the waste heat generated by the electrolyser and the fuel cell. The model is well suited for the analysis of the effects of different component dimensionings in a hydrogen-based energy system via the overall energy balance within the residential sector.
AU - Möller, Marius Claus
AU - Krauter, Stefan
ID - 32333
T2 - Proceedings of the 49th IEEE Photovoltaic Specialists Conference
TI - Model of a Self-Sufficient PV Home using a Hybrid Storage System based on Li-Ion Batteries and Hydrogen Storage with Waste Heat Utilization
ER -
TY - JOUR
AB - In this paper, a model of a hybrid, hydrogen-based energy system for a household which includes the heating sector is presended. With such an energy system it's possible to enable energy autarky over a whole year based on solar energy. The scope of this study was to present a verified hybrid energy system model created in Simulink which can be used to prospectively size future similar energy systems where hydrogen in combination with a li-ion battery shall be used as energy storage type.
AU - Möller, Marius Claus
AU - Krauter, Stefan
ID - 30262
JF - Energies / Special Issue "Sustainable Energy Concepts for Energy Transition"
SN - 1996-1073
TI - Hybrid Energy System Model in Matlab/Simulink based on Solar Energy, Lithium-Ion Battery and Hydrogen
VL - 15 (6), 2201
ER -
TY - JOUR
AB - Agility, a key component of team ball sports, describes an athlete´s ability to move fast in response to changing environments. While agility requires basic cognitive functions like processing speed, it also requires more complex cognitive processes like working memory and inhibition. Yet, most agility tests restrict an assessment of cognitive processes to simple reactive times that lack ecological validity. Our aim in this study was to assess agility performance by means of total time on two agility tests with matched motor demands but with both low and high cognitive demands. We tested 22 female team athletes on SpeedCourt, using a simple agility test (SAT) that measured only processing speed and a complex agility test (CAT) that required working memory and inhibition. We found excellent to good reliability for both our SAT (ICC = .79) and CAT (ICC =.70). Lower agility performance on the CAT was associated with increased agility total time and split times ( p < .05). These results demonstrated that agility performance depends on the complexity of cognitive demands. There may be interference-effects between motor and cognitive performances, reducing speed when environmental information becomes more complex. Future studies should consider agility training models that implement complex cognitive stimuli to challenge athletes according to competitive demands. This will also allow scientists and practitioners to tailor tests to talent identification, performance development and injury rehabilitation.
AU - Büchel, Daniel
AU - Gokeler, Alli
AU - Heuvelmans, Pieter
AU - Baumeister, Jochen
ID - 32087
JF - Perceptual and Motor Skills
KW - Sensory Systems
KW - Experimental and Cognitive Psychology
SN - 0031-5125
TI - Increased Cognitive Demands Affect Agility Performance in Female Athletes - Implications for Testing and Training of Agility in Team Ball Sports
ER -
TY - CHAP
AU - zur Heiden, Philipp
AU - Priefer, Jennifer
AU - Beverungen, Daniel
ED - Bruhn, Manfred
ED - Hadwich, Karsten
ID - 32363
SN - 2662-3382
T2 - Forum Dienstleistungsmanagement
TI - Smart Service für die prädiktive Instandhaltung zentraler Komponenten des Mittelspannungs-Netzes
ER -
TY - CONF
AU - Rossel, Moritz Sebastian
AU - Meschut, Gerson
ID - 32388
T2 - Proceedings of the 6th Conference on Steels in Cars and Trucks
TI - Method development for increasing the prediction quality of mechanical joining process simulations by friction modeling based on local joining process parameters
ER -
TY - JOUR
AB - Koopman operator theory has been successfully applied to problems from various research areas such as fluid dynamics, molecular dynamics, climate science, engineering, and biology. Applications include detecting metastable or coherent sets, coarse-graining, system identification, and control. There is an intricate connection between dynamical systems driven by stochastic differential equations and quantum mechanics. In this paper, we compare the ground-state transformation and Nelson's stochastic mechanics and demonstrate how data-driven methods developed for the approximation of the Koopman operator can be used to analyze quantum physics problems. Moreover, we exploit the relationship between Schrödinger operators and stochastic control problems to show that modern data-driven methods for stochastic control can be used to solve the stationary or imaginary-time Schrödinger equation. Our findings open up a new avenue towards solving Schrödinger's equation using recently developed tools from data science.
AU - Klus, Stefan
AU - Nüske, Feliks
AU - Peitz, Sebastian
ID - 29673
IS - 31
JF - Journal of Physics A: Mathematical and Theoretical
TI - Koopman analysis of quantum systems
VL - 55
ER -
TY - GEN
AB - Context: Cryptographic APIs are often misused in real-world applications. Therefore, many cryptographic API misuse detection tools have been introduced. However, there exists no established reference benchmark for a fair and comprehensive comparison and evaluation of these tools. While there are benchmarks, they often only address a subset of the domain or were only used to evaluate a subset of existing misuse detection tools. Objective: To fairly compare cryptographic API misuse detection tools and to drive future development in this domain, we will devise such a benchmark. Openness and transparency in the generation process are key factors to fairly generate and establish the needed benchmark. Method: We propose an approach where we derive the benchmark generation methodology from the literature which consists of general best practices in benchmarking and domain-specific benchmark generation. A part of this methodology is transparency and openness of the generation process, which is achieved by pre-registering this work. Based on our methodology we design CamBench, a fair "Cryptographic API Misuse Detection Tool Benchmark Suite". We will implement the first version of CamBench limiting the domain to Java, the JCA, and static analyses. Finally, we will use CamBench to compare current misuse detection tools and compare CamBench to related benchmarks of its domain.
AU - Schlichtig, Michael
AU - Wickert, Anna-Katharina
AU - Krüger, Stefan
AU - Bodden, Eric
AU - Mezini, Mira
ID - 32409
KW - cryptography
KW - benchmark
KW - API misuse
KW - static analysis
TI - CamBench -- Cryptographic API Misuse Detection Tool Benchmark Suite
ER -
TY - CHAP
AU - Tönsing, Johanna
ED - Hofmann, Michael
ED - Becker, Karina
ID - 32419
T2 - Rassismussensibler Literaturunterricht. Neue Perspektiven einer kulturwissenschaftlichen Literaturdidaktik
TI - Chancen für einen rassismussensiblen Literaturunterricht - didaktische Perspektiven für das Lesen von Menschenzoogeschichten in der Grundschule am Beispiel von Rainer Maria Rilkes Gedicht "Die Aschanti. Jardin d´acclimatation" (1902)
ER -
TY - CHAP
AU - Tönsing, Johanna
ED - Bernhardt, Sebastian
ED - Hardtke, Thomas
ID - 32417
T2 - Interpretationsverfahruen der germanistischen Literaturdidaktik und didaktische Referenzkonzepte
TI - (K)eine kinderleichte Gattung: Konsequenzen einer kulturwissenschaftlich informierten Märchendidaktik
ER -
TY - THES
AU - Lass, Michael
ID - 32414
TI - Bringing Massive Parallelism and Hardware Acceleration to Linear Scaling Density Functional Theory Through Targeted Approximations
ER -
TY - CHAP
AU - Tönsing, Johanna
ED - Schulte-Eickholt, Swen
ED - Hofmann, Michael
ID - 32418
T2 - Sammelband über den deutsch-türkischen Film
TI - Über „Gleis 11“ [Dokumentarfilm von 2021]
ER -
TY - CHAP
AU - Tönsing, Johanna
ED - Hofmann, Michael
ID - 32423
T2 - Neue Perspektiven einer kulturwissenschaftlichen Literaturdidaktik
TI - Weiblichkeitsdiskurse in der Gegenwartsliteratur und deren Thematisierung im genderorientierten Unterricht
ER -
TY - CONF
AB - Static analysis tools support developers in detecting potential coding issues, such as bugs or vulnerabilities. Research on static analysis emphasizes its technical challenges but also mentions severe usability shortcomings. These shortcomings hinder the adoption of static analysis tools, and in some cases, user dissatisfaction even leads to tool abandonment.
To comprehensively assess the current state of the art, this paper presents the first systematic usability evaluation in a wide range of static analysis tools. We derived a set of 36 relevant criteria from the scientific literature and gathered a collection of 46 static analysis tools complying with our inclusion and exclusion criteria - a representative set of mainly non-proprietary tools. Then, we evaluated how well these tools fulfill the aforementioned criteria.
The evaluation shows that more than half of the considered tools offer poor warning messages, while about three-quarters of the tools provide hardly any fix support. Furthermore, the integration of user knowledge is strongly neglected, which could be used for improved handling of false positives and tuning the results for the corresponding developer. Finally, issues regarding workflow integration and specialized user interfaces are proved further.
These findings should prove useful in guiding and focusing further research and development in the area of user experience for static code analyses.
AU - Nachtigall, Marcus
AU - Schlichtig, Michael
AU - Bodden, Eric
ID - 32410
KW - Automated static analysis
KW - Software usability
SN - 9781450393799
T2 - Proceedings of the 31st ACM SIGSOFT International Symposium on Software Testing and Analysis
TI - A Large-Scale Study of Usability Criteria Addressed by Static Analysis Tools
ER -
TY - CONF
AB - Application Programming Interfaces (APIs) are the primary mechanism that developers use to obtain access to third-party algorithms and services. Unfortunately, APIs can be misused, which can have catastrophic consequences, especially if the APIs provide security-critical functionalities like cryptography. Understanding what API misuses are, and for what reasons they are caused, is important to prevent them, e.g., with API misuse detectors. However, definitions and nominations for API misuses and related terms in literature vary and are diverse. This paper addresses the problem of scattered knowledge and definitions of API misuses by presenting a systematic literature review on the subject and introducing FUM, a novel Framework for API Usage constraint and Misuse classification. The literature review revealed that API misuses are violations of API usage constraints. To capture this, we provide unified definitions and use them to derive FUM. To assess the extent to which FUM aids in determining and guiding the improvement of an API misuses detectors' capabilities, we performed a case study on CogniCrypt, a state-of-the-art misuse detector for cryptographic APIs. The study showed that FUM can be used to properly assess CogniCrypt's capabilities, identify weaknesses and assist in deriving mitigations and improvements. And it appears that also more generally FUM can aid the development and improvement of misuse detection tools.
AU - Schlichtig, Michael
AU - Sassalla, Steffen
AU - Narasimhan, Krishna
AU - Bodden, Eric
ID - 31133
KW - API misuses
KW - API usage constraints
KW - classification framework
KW - API misuse detection
KW - static analysis
T2 - 2022 IEEE International Conference on Software Analysis, Evolution and Reengineering (SANER)
TI - FUM - A Framework for API Usage constraint and Misuse Classification
ER -
TY - GEN
AU - Vahle, Ella
ID - 32399
TI - Modelling and Proving Security for a Secure MPC Protocol for Stable Matching
ER -
TY - GEN
AU - Hetkämper, Tim
ID - 6561
TI - Visualisierung von Ultraschallfeldern mittels Schlierentechnik und fraktionaler Fouriertransformation
ER -
TY - GEN
AU - Claes, Leander
ID - 6592
TI - Messverfahren für die akustische Absorption zur Bestimmung der Volumenviskosität
ER -
TY - GEN
AU - Mügge, Nils
AU - Kronberg, Alexander
AU - Glushenkov, Maxim
AU - Kenig, Eugeny
ID - 32446
T2 - Annual Meeting on Reaction Engineering and ProcessNet Subject Division Heat and Mass Transfer
TI - Heat regeneration model for external heat engines operating with dense working fluids
ER -
TY - CONF
AB - The famous $k$-Server Problem covers plenty of resource allocation scenarios, and several variations have been studied extensively for decades. However, to the best of our knowledge, no research has considered the problem if the servers are not identical and requests can express which specific servers should serve them. Therefore, we present a new model generalizing the $k$-Server Problem by *preferences* of the requests and proceed to study it in a uniform metric space for deterministic online algorithms (the special case of paging).
In our model, requests can either demand to be answered by any server (*general requests*) or by a specific one (*specific requests*). If only general requests appear, the instance is one of the original $k$-Server Problem, and a lower bound for the competitive ratio of $k$ applies. If only specific requests appear, a solution with a competitive ratio of $1$ becomes trivial since there is no freedom regarding the servers' movements. Perhaps counter-intuitively, we show that if both kinds of requests appear, the lower bound raises to $2k-1$.
We study deterministic online algorithms in uniform metrics and present two algorithms. The first one has an adaptive competitive ratio dependent on the frequency of specific requests. It achieves a worst-case competitive ratio of $3k-2$ while it is optimal when only general or only specific requests appear (competitive ratio of $k$ and $1$, respectively). The second has a fixed close-to-optimal worst-case competitive ratio of $2k+14$. For the first algorithm, we show a lower bound of $3k-2$, while the second algorithm has a lower bound of $2k-1$ when only general requests appear.
The two algorithms differ in only one behavioral rule for each server that significantly influences the competitive ratio. Each server acting according to the rule allows approaching the worst-case lower bound, while it implies an increased lower bound for $k$-Server instances. In other words, there is a trade-off between performing well against instances of the $k$-Server Problem and instances containing specific requests. We also show that no deterministic online algorithm can be optimal for both kinds of instances simultaneously.
AU - Castenow, Jannik
AU - Feldkord, Björn
AU - Knollmann, Till
AU - Malatyali, Manuel
AU - Meyer auf der Heide, Friedhelm
ID - 31847
KW - K-Server Problem
KW - Heterogeneity
KW - Online Caching
SN - 9781450391467
T2 - Proceedings of the 34th ACM Symposium on Parallelism in Algorithms and Architectures
TI - The k-Server with Preferences Problem
ER -
TY - CHAP
AU - Mindt, Ilka
ED - Mah, Dana-Kristin
ED - Cordula, Torner
ID - 32473
T2 - Künstliche Intelligenz mit offenen Lernangeboten an Hochschulen lehren. Erfahrungen und Erkenntnisse aus dem Fellowship-Programm des KI-Campus.
TI - Künstliche Intelligenz fachfremd mittels Open Educational Resources unterrichten. Wie das Flipped-Classroom-Format bei der Einbettung in die Lehre der Anglistik hilft.
ER -
TY - CONF
AU - Mayer, Peter
AU - Poddebniak, Damian
AU - Fischer, Konstantin
AU - Brinkmann, Marcus
AU - Somorovsky, Juraj
AU - Sasse, Angela
AU - Schinzel, Sebastian
AU - Volkamer, Melanie
ID - 32572
SN - 978-1-939133-30-4
T2 - Eighteenth Symposium on Usable Privacy and Security (SOUPS 2022)
TI - "I don' know why I check this..." - Investigating Expert Users' Strategies to Detect Email Signature Spoofing Attacks
ER -
TY - GEN
AB - BloKK-Beitrag für das ZeKK, 04.02.2022
AU - Lebock, Sarah
ID - 30194
TI - Blogpost "Nahtoderfahrungen und ihre Deutungen"
ER -
TY - JOUR
AU - Yang, Yu
AU - Huang, Jingyuan
AU - Dornbusch, Daniel
AU - Grundmeier, Guido
AU - Fahmy, Karim
AU - Keller, Adrian
AU - Cheung, David L.
ID - 32432
JF - Langmuir
KW - Electrochemistry
KW - Spectroscopy
KW - Surfaces and Interfaces
KW - Condensed Matter Physics
KW - General Materials Science
SN - 0743-7463
TI - Effect of Surface Hydrophobicity on the Adsorption of a Pilus-Derived Adhesin-like Peptide
VL - 38
ER -
TY - JOUR
AB - Guanidinium (Gdm) undergoes interactions with both hydrophilic and hydrophobic groups and, thus, is a highly potent denaturant of biomolecular structure. However, our molecular understanding of the interaction of Gdm with proteins and DNA is still rather limited. Here, we investigated the denaturation of DNA origami nanostructures by three Gdm salts, i.e., guanidinium chloride (GdmCl), guanidinium sulfate (Gdm2SO4), and guanidinium thiocyanate (GdmSCN), at different temperatures and in dependence of incubation time. Using DNA origami nanostructures as sensors that translate small molecular transitions into nanostructural changes, the denaturing effects of the Gdm salts were directly visualized by atomic force microscopy. GdmSCN was the most potent DNA denaturant, which caused complete DNA origami denaturation at 50 °C already at a concentration of 2 M. Under such harsh conditions, denaturation occurred within the first 15 min of Gdm exposure, whereas much slower kinetics were observed for the more weakly denaturing salt Gdm2SO4 at 25 °C. Lastly, we observed a novel non-monotonous temperature dependence of DNA origami denaturation in Gdm2SO4 with the fraction of intact nanostructures having an intermediate minimum at about 40 °C. Our results, thus, provide further insights into the highly complex Gdm–DNA interaction and underscore the importance of the counteranion species.
AU - Hanke, Marcel
AU - Hansen, Niklas
AU - Tomm, Emilia
AU - Grundmeier, Guido
AU - Keller, Adrian
ID - 32589
IS - 15
JF - International Journal of Molecular Sciences
KW - Inorganic Chemistry
KW - Organic Chemistry
KW - Physical and Theoretical Chemistry
KW - Computer Science Applications
KW - Spectroscopy
KW - Molecular Biology
KW - General Medicine
KW - Catalysis
SN - 1422-0067
TI - Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate
VL - 23
ER -
TY - JOUR
AB - Background: Medical professionals working in an elite sport environment have the challenging task to balance the athlete’s readiness to return to the playing field after severe injury with other stakeholders’ (coaches, sponsors, teammates) opinions and objectives.Objectives: Our study aimed to evaluate differences in the physical profiles of elite rugby players at return to play (RTP) after a severe knee injury, compared with their pre-injury profiles and matched controls.Method: Before the injury, participants performed four performance tests during their preseason screening. These tests were repeated and compared to baseline once a player was declared fit to play.Results: Significant differences (p ≤ 0.05) were found in the injured players’ group who were slower over 10 m speed, in their decision-making time and the total time of the reactive agility tests at RTP, whilst controls were significantly faster over 10 m and 30 m speed tests. The countermovement jump outcomes showed significant improvement in the uninjured participants (p ≤ 0.05).Conclusion: Our study highlights that injured players’ running speeds and decision-making times are slower after injury. The uninjured players have a positive outcome to training and match stimulus by improving their running speed and lower body explosive power during the season.Clinical implications: Our study provides insight into the RTP profile of elite rugby players, and a novel finding was the decision-making time deficit. This highlights the importance of cognitive training during injury rehabilitation as athletes make numerous decisions in a pressured and uncontrolled environment during a match. Speed training development is recommended as the athletes were slower after severe knee injury.
AU - Robyn, Aneurin D.
AU - Louw, Quinette A.
AU - Baumeister, Jochen
ID - 34022
IS - 1
JF - South African Journal of Physiotherapy
KW - Physical Therapy
KW - Sports Therapy and Rehabilitation
SN - 2410-8219
TI - Return to play in elite rugby players after severe knee injuries
VL - 78
ER -
TY - CHAP
AB - Decision makers increasingly rely on decision support systems for optimal decision making. Recently, special attention has been paid to process-driven decision support systems (PD-DSS) in which a process model prescribes the invocation sequence of software-based decision support services and the data exchange between them. Thus, it is possible to quickly combine available decision support services as needed for optimally supporting the decision making process of an individual decision maker. However, process modelers may accidentally create a process model which is technically well-formed and executable, but contains functional and behavioral flaws such as redundant or missing services. These flaws may result in inefficient computations or invalid decision recommendations when the corresponding PD-DSS is utilized by a decision maker. In this paper, we therefore propose an approach to validate functionality and behavior of a process model representing a PD-DSS. Our approach is based on expressing flaws as anti-patterns for which the process model can be automatically checked via graph matching. We prototypically implemented our approach and demonstrate its applicability in the context of decision making for energy network planning.
AU - Kirchhoff, Jonas
AU - Engels, Gregor
ID - 34023
SN - 1865-1348
T2 - Software Business
TI - Anti-pattern Detection in Process-Driven Decision Support Systems
VL - 463
ER -
TY - JOUR
AU - Robyn, A.D.
AU - Louw, Q.A.
AU - Baumeister, Jochen
ID - 34021
IS - 3
JF - African Journal for Physical Activity and Health Sciences (AJPHES)
KW - General Medicine
SN - 2411-6939
TI - Psychological readiness of elite rugby players at return to play after severe knee injury
VL - 28
ER -
TY - GEN
AU - Haase, Michael
AU - Tasche, Frederik
AU - Bieber, Maximilian
AU - Zibart, Alexander
ID - 34020
TI - Innovative Leichtbau- und Kühlungskonzepte für elektrische Maschinen durch additive Fertigung (ILuKadd3D)
VL - Heft 1526
ER -
TY - GEN
AB - Controversial topics like abortion or capital punishment inherently lack
of correct answers or the right way to deal with. Thus, in order to find what is true,
what is good, or what should be done, the involved parties need to debate. For the
purpose of forming an opinion on a controversial topic someone needs to take in a
lot of arguments on that topic to gather information which can be a time-consuming
process. To increase efficiency, someone can use an argument search engine to quicken
the retrieval of relevant arguments. Although the usage of such a service reduces the
time to find arguments, there is still a lot of textual data that needs to be read. To this
end, computational summarization approaches for arguments can limit the necessary
time for information review by generating short snippets capturing the main gist of
each argument. Yet, we suggest that approaches that consider one argument at a
time show potential for further improvement in terms of efficiency during information
review. In fact, arguments on the same topic, like those retrieved by a search engine for
a certain query, partially cover the same content, e. g. arguments regarding the death
penalty probably use deterrence as a point in favor of it. However, if the same aspect
is central in multiple arguments, their snippets reflect this, which leads to redundancy
among the snippets. Consequently, someone interested in gathering information on a
controversial topic does not necessarily find new information in each snippet he or she
reads.
We introduce the task of Contrastive Argument Summarization (CAS) which addresses
the aforementioned problem regarding existing argument summarization. An approach
that addresses CAS aims to produce contrastive snippets for each argument in a set
of topic-related arguments. A contrastive snippet should represent the main gist of its
argument, it should account for the argumentative nature of the text, and it should be
dissimilar to the other topic-related arguments in order to reduce redundancy among
the snippets.
We propose two approaches addressing CAS, namely an extended version of the
LexRank derivation by Alshomary et al. (2020), and an advancement of the work
by Bista et al. (2020). Additionally, we develop two automatic measures to assess to
which extent the snippets of one set are opposed. For evaluation, we compile a corpus
using the args.me search engine Wachsmuth et al. (2017b) to come close to the suggested area of application. Moreover, we conduct a manual annotation study to assess
approaches’ effectiveness. We find that the graph-based approach is superior when it
comes to contrastiveness (i. e. snippets being dissimilar to topic-related arguments),
and that the second approach outperforms the previous one and the unmodified version of Alshomary et al. (2020) when it comes to representativeness (i. e. snippets
capturing the main gist of an argument).
AU - Rieskamp, Jonas
ID - 34025
TI - Contrastive Argument Summarization Using Supervised and Unsupervised Machine Learning
ER -
TY - CONF
AB - Consider the practical goal of making a desired action profile played,
when the planner can only change the payoffs, bound by
stringent constraints.
Applications include motivating people
to choose the closest school, the closest subway station, or to coordinate
on a communication protocol or an investment strategy.
Employing subsidies and tolls, we adjust the game so that choosing this predefined action profile
becomes strictly dominant.
Inspired mainly by the work of Monderer and Tennenholtz,
where the promised subsidies do not materialise in the not played
profiles, we provide a fair and individually rational game
adjustment, such that the total outside investments sum up
to zero at any profile, thereby facilitating easy and frequent
usage of our adjustment without bearing costs, even if some
players behave unexpectedly. The resultant action profile itself needs no
adjustment. Importantly, we also prove that our adjustment minimises
the general transfer among all such adjustments, counting the total subsidising and taxation.
AU - Polevoy, Gleb
AU - Dziubiński, Marcin
ED - De Raedt, Luc
ID - 34040
KW - adjustment
KW - strictly dominant
KW - fairness
KW - individually rational
KW - transfer
KW - tax
KW - subsidy
T2 - Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence
TI - Fair, Individually Rational and Cheap Adjustment
ER -
TY - JOUR
AB - Zusammenfassung: Der Beitrag befasst sich mit der professionellen pädagogischen Beziehung zwischen Referendar*innen und ihren Seminarlehrkräften, deren Beitrag für die Beanspruchung der Referendar*innen bisher noch nicht eingängig untersucht wurde. Das Ziel der Studie ist es, anhand einer Querschnittserhebung von 2583 Referendar*innen und ausgebildeten Lehrkräften, kompensatorische sowie verstärkende Effekte der Beziehungsdimensionen Transparenz, Fairness, Vertrauen und Ambivalenz auf die wahrgenommene Beanspruchung im Referendariat zu untersuchen. Die Analyse erfolgt mittels eines latent moderierten Strukturgleichungsansatzes. Die Ergebnisse zeigen, dass Belastungen durch die Kerntätigkeiten im Referendariat sowie Belastungen durch den Umgang mit Kolleg*innen im Lehrer*innenkollegium in signifikant positivem Zusammenhang mit resultierenden Beanspruchungsreaktionen stehen. Je transparenter, fairer und vertrauensvoller und je weniger ambivalent die Beziehung zur Seminarlehrkraft erlebt wird, desto geringer fallen die Beanspruchungsreaktionen aus. Die Ergebnisse werden hinsichtlich ihrer Relevanz für die Beziehungsarbeit im Referendariat als zentralem Ausbildungsbestandteil der zweiten Phase der Lehrer*innenausbildung diskutiert.
AU - Kärner, Tobias
AU - Goller, Michael
AU - Bonnes, Caroline
AU - Maué, Elisabeth
ID - 30105
JF - Zeitschrift für Erziehungswissenschaft
KW - Education
SN - 1434-663X
TI - Die professionelle pädagogische Beziehung zwischen Referendar*innen und ihren Seminarlehrkräften: Belastungsfaktor oder Ressource?
VL - 25
ER -
TY - CONF
AU - Epstein, Leah
AU - Lassota, Alexandra
AU - Levin, Asaf
AU - Maack, Marten
AU - Rohwedder, Lars
ED - Berenbrink, Petra
ED - Monmege, Benjamin
ID - 33085
T2 - 39th International Symposium on Theoretical Aspects of Computer Science, STACS 2022, March 15-18, 2022, Marseille, France (Virtual Conference)
TI - Cardinality Constrained Scheduling in Online Models
VL - 219
ER -
TY - JOUR
AU - Hoffmann, Christin
AU - Thommes, Kirsten
ID - 34044
JF - Journal of Cleaner Production
KW - Industrial and Manufacturing Engineering
KW - Strategy and Management
KW - General Environmental Science
KW - Renewable Energy
KW - Sustainability and the Environment
KW - Building and Construction
SN - 0959-6526
TI - Clear Roads and Dirty Air? Indirect effects of reduced private traffic congestion on emissions from heavy traffic
ER -
TY - JOUR
AU - Hoffmann, Christin
AU - Thommes, Kirsten
ID - 34045
JF - Journal of Cleaner Production
KW - Industrial and Manufacturing Engineering
KW - Strategy and Management
KW - General Environmental Science
KW - Renewable Energy
KW - Sustainability and the Environment
KW - Building and Construction
SN - 0959-6526
TI - Clear Roads and Dirty Air? Indirect effects of reduced private traffic congestion on emissions from heavy traffic
ER -
TY - CONF
AU - Alshomary, Milad
AU - El Baff, Roxanne
AU - Gurcke, Timon
AU - Wachsmuth, Henning
ID - 30840
T2 - Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics
TI - The Moral Debater: A Study on the Computational Generation of Morally Framed Arguments
ER -
TY - CONF
AU - Wachsmuth, Henning
AU - Alshomary, Milad
ID - 33004
T2 - Proceedings of the 29th International Conference on Computational Linguistics
TI - "Mama Always Had a Way of Explaining Things So I Could Understand": A Dialogue Corpus for Learning How to Explain
ER -
TY - JOUR
AU - Lauscher, Anne
AU - Wachsmuth, Henning
AU - Gurevych, Iryna
AU - Glavaš, Goran
ID - 34049
JF - Transactions of the Association for Computational Linguistics
TI - On the Role of Knowledge in Computational Argumentation
ER -
TY - CONF
AU - Kiesel, Johannes
AU - Alshomary, Milad
AU - Handke, Nicolas
AU - Cai, Xiaoni
AU - Wachsmuth, Henning
AU - Stein, Benno
ID - 22157
T2 - Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics
TI - Identifying the Human Values behind Arguments
ER -
TY - CONF
AU - Pasic, Faruk
AU - Becker, Matthias
ID - 34057
T2 - 2022 IEEE 27th International Conference on Emerging Technologies and Factory Automation (ETFA)
TI - Domain-specific Language for Condition Monitoring Software Development
ER -
TY - CHAP
AU - Somogyi, Peter
ED - Federow, Anne-Katrin
ED - Malcher, Kay
ID - 34027
T2 - Troja bauen
TI - "Swer siner kunst meister ist, der hat gewalt an siner list". Herborts von Fritzlar Liet von Troye als Fortsetzungstext des Eneasromans Heinrichs von Veldeke am Schnittpunkt von Aneignung und Neukonstitution
ER -
TY - CONF
AB - News articles both shape and reflect public opinion across the political
spectrum. Analyzing them for social bias can thus provide valuable insights,
such as prevailing stereotypes in society and the media, which are often
adopted by NLP models trained on respective data. Recent work has relied on
word embedding bias measures, such as WEAT. However, several representation
issues of embeddings can harm the measures' accuracy, including low-resource
settings and token frequency differences. In this work, we study what kind of
embedding algorithm serves best to accurately measure types of social bias
known to exist in US online news articles. To cover the whole spectrum of
political bias in the US, we collect 500k articles and review psychology
literature with respect to expected social bias. We then quantify social bias
using WEAT along with embedding algorithms that account for the aforementioned
issues. We compare how models trained with the algorithms on news articles
represent the expected social bias. Our results suggest that the standard way
to quantify bias does not align well with knowledge from psychology. While the
proposed algorithms reduce the~gap, they still do not fully match the
literature.
AU - Spliethöver, Maximilian
AU - Keiff, Maximilian
AU - Wachsmuth, Henning
ID - 34047
T2 - Proceedings of The 2022 Conference on Empirical Methods in Natural Language Processing (EMNLP 2022)
TI - No Word Embedding Model Is Perfect: Evaluating the Representation Accuracy for Social Bias in the Media
ER -
TY - CHAP
AU - Musiol, Marie-Luise
AU - Winst, Silke
ED - Lamsechi, Guita
ED - Trînca, Beatrice
ID - 34017
T2 - Spiritual Vegetation: Vegetal Nature in Religious Contexts Across Medieval and Early Modern Europe (Berliner Mittelalter- und Frühneuzeitforschung, Vol. 26)
TI - Pfirsichbaum und dunkler Wald. Pflanzliche Konfigurationen zwischen Dynamisierung und Innehalten in 'Partonopier und Meliur' Konrads von Würzburg
ER -
TY - GEN
AU - Musiol, Marie-Luise
ID - 34019
T2 - Sexuologie
TI - Bennewitz, Ingrid/Eming, Jutta/Traulsen, Johannes: Gender Studies – Queer Studies – Intersektionalität. Eine Zwischenbilanz aus mediävistischer Perspektive (Berliner Mittelalter- und Frühneuzeitforschung 25), Göttingen 2019
ER -
TY - CHAP
AU - Musiol, Marie-Luise
ED - Egidi, Margreth
ED - Peters, Ludmilla
ED - Schmidt, Jochen
ID - 34018
T2 - Unverfügbar. Kulturen des Heiligen
TI - Menschlicher Körper, heiliger Körper. Zur Kreuzigung Christi im Donaueschinger Passionsspiel
ER -
TY - JOUR
AB - This study investigates the conditions under which tax rate changes accelerate risky investments.
While tax rate increases are often expected to harm investment, analytical
studies find tax rate increases may foster investment under flexibility.We design a theorybased
experimentwith a binomial random walk and entry–exit flexibility.We find accelerated
investment upon tax rate increases irrespective of an exit option, but no corresponding
response to tax cuts. This asymmetry may be due to tax salience and mechanisms
from irreversible choice under uncertainty. Given this evidence of unexpected tax-reform
effects, tax policymakers should carefully consider behavioral aspects.
AU - Fahr, René
AU - Janssen, Elmar A.
AU - Sureth-Sloane, Caren
ID - 29049
IS - 1-2
JF - FinanzArchiv / Public Finance Analysis
KW - Economic ExperimentM
KW - Investment Decisions
KW - Tax Effects
KW - Timing Flexibility
KW - Uncertainty
TI - Can Tax Rate Changes Accelerate Investment under Entry and Exit Flexibility? – Insights from an Economic Experiment
VL - 78
ER -
TY - JOUR
AB - We study the bargaining behavior between auditor and auditee in a tax setting and scrutinize
the effect of interpersonal trust and trust in government on both parties’ concessions.
We find evidence that both kinds of trust affect the concessionary behavior, albeit
in different ways. While trust in government affects concessionary behavior in line with
intuitive predictions, we find that interpersonal trust only affects tax auditors. For high
interpersonal trust, the alleviating effect of high trust in government on tax auditors’
concessions is less pronounced. Our findings help tax authorities to shape programs to
enhance compliance in an atmosphere of trust.
AU - Eberhartinger, Eva
AU - Speitmann, Raffael
AU - Sureth-Sloane, Caren
AU - Wu, Yuchen
ID - 29048
IS - 1-2
JF - FinanzArchiv / Public Finance Analysis
KW - Behavioral Taxation
KW - Concessionary Behavior
KW - Interpersonal Trust
KW - Tax Audit
KW - Trust in Government
TI - How Does Trust Affect Concessionary Behavior in Tax Bargaining?
VL - 78
ER -
TY - CONF
AU - Hetkämper, Tim
AU - Claes, Leander
AU - Henning, Bernd
ID - 31331
SN - 978-3-8007-5835-7
T2 - Sensoren und Messsysteme - Beiträge der 21. ITG/GMA-Fachtagung
TI - Schlieren imaging with fractional Fourier transform to visualise ultrasonic fields
ER -
TY - CONF
AU - Sengupta, Meghdut
AU - Alshomary, Milad
AU - Wachsmuth, Henning
ID - 34067
T2 - Proceedings of the 2022 Workshop on Figurative Language Processing
TI - Back to the Roots: Predicting the Source Domain of Metaphors using Contrastive Learning
ER -