TY - CONF
AB - Even though the spectrum of parts is expected to shift over the long term as a result of increasing e-mobility, there is still an extremely high demand for complex components made of high-strength materials which can only be produced by hydroforming technologies. The innovative combination of hydroforming processes with other forming processes, as well as the improvement of the processes themselves, offers considerable potential for improvement.
A number of promising ways of improving the hydroforming process chain are therefore the subject of this contribution. The focus of the article is on possible approaches for combining (incremental) pre- and post-forming operations, which can permit considerable improvements in both quality and features at a reduced cost. Furthermore, a novel combination of quasi-static and high-speed forming processes is presented, leading to an improved overall forming process (with a high application potential) for the production of complex parts.
AU - Wiens, Eugen
AU - Djakow, Eugen
AU - Homberg, Werner
ID - 21447
KW - Hydroforming
KW - Incremental Forming
KW - Internal Flow-turning
KW - High-speed Forming
T2 - Nebu/Nehy 2020
TI - Some ideas for the further development of hydroforming process chains
ER -
TY - JOUR
AB - In this paper, we study properties of the algebras of planar quasi-invariants. These algebras are Cohen–Macaulay and Gorenstein in codimension one. Using the technique of matrix problems, we classify all Cohen–Macaulay modules of rank one over them and determine their Picard groups. In terms of this classification, we describe the spectral modules of the planar rational Calogero–Moser systems. Finally, we elaborate the theory of the algebraic inverse scattering method, providing explicit computations of some ‘isospectral deformations’ of the planar rational Calogero–Moser system in the case of the split rational potential.
AU - Burban, Igor
AU - Zheglov, A.
ID - 44331
IS - 4
JF - Proceedings of the London Mathematical Society
TI - Cohen-Macaulay modules over the algebra of planar quasi-invariants and Calogero-Moser systems
VL - 121
ER -
TY - CHAP
AU - van Ackeren, Isabell
AU - Buhl, Heike M.
AU - Eickelmann, Birgit
AU - Heinrich, Martin
AU - Wolfswinkler, Günther
ED - Kaspar, Kai
ED - Becker-Mrotzek, Michael
ED - Hofhues, Sandra
ED - König, Johannes
ED - Schmeinck, Daniela
ID - 28883
T2 - Bildung, Schule und Digitalisierung
TI - Digitalisierung in der Lehrerbildung durch Communities of Practice. Konzeption, Governance und Qualitätsmanagement des ComeIn-Verbundvorhabens in Nordrhein-Westfalen
ER -
TY - CHAP
AU - Labusch, Amelie
AU - Eickelmann, Birgit
AU - Drossel, Kerstin
AU - Vennemann, Mario
ED - Eickelmann, Birgit
ED - Labusch, Amelie
ED - Drossel, Kerstin
ED - Vennemann, Mario
ID - 27838
T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich
TI - Digitalisierungsbezogene Berufswahlneigung und Sichtweisen von Mädchen und Jungen auf die Relevanz digitaler Medien für die Gesellschaft
ER -
TY - JOUR
AU - Eickelmann, Birgit
AU - Drossel, Kerstin
ID - 28882
JF - SchulVerwaltung BW
TI - Schulschließungen und Perspektiven für die Pandemie-Zeit –– Ergebnisse der Studie ‚Schule auf Distanz‘
VL - 12
ER -
TY - JOUR
AU - Eickelmann, Birgit
AU - Kummer Wyss, Annemarie
ID - 28908
IS - 4
JF - Journal für Schulentwicklung
TI - Fortbildung im digitalen Zeitalter. Editorial
VL - 24
ER -
TY - BOOK
AU - Labusch, Amelie
AU - Eickelmann, Birgit
AU - Conze, Daniela
ID - 28905
TI - ICILS 2018 #Transfer. Gestaltung digitaler Schulentwicklung in Deutschland
ER -
TY - CHAP
AU - Eickelmann, Birgit
AU - Drossel, Kerstin
AU - Labusch, Amelie
AU - Heldt, Melanie
ED - Eickelmann, Birgit
ED - Labusch, Amelie
ED - Drossel, Kerstin
ED - Vennemann, Mario
ID - 27839
T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich
TI - Wünsche zur schulischen Nutzung digitaler Medien, digitalisierungsbezogene Berufswahlneigung und Sichtweisen von Schülerinnen und Schülern auf die Relevanz digitaler Medien für die Gesellschaft
ER -
TY - CHAP
AU - Drossel, Kerstin
AU - Lorenz, Ramona
AU - Labusch, Amelie
AU - Eickelmann, Birgit
ED - Eickelmann, Birgit
ED - Labusch, Amelie
ED - Drossel, Kerstin
ED - Vennemann, Mario
ID - 27853
T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich
TI - Selbsteingeschätzte Kompetenzen von Lehrkräften zum schulischen Einsatz digitaler Medien
ER -
TY - CHAP
AU - Labusch, Amelie
AU - Eickelmann, Birgit
AU - Gerick, Julia
AU - Drossel, Kerstin
ED - Eickelmann, Birgit
ED - Labusch, Amelie
ED - Drossel, Kerstin
ED - Vennemann, Mario
ID - 27842
T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich
TI - Kompetenzen im Bereich ‚Computational Thinking‘ von Mädchen und Jungen
ER -
TY - CHAP
AU - Drossel, Kerstin
AU - Eickelmann, Birgit
ED - Eickelmann, Birgit
ED - Labusch, Amelie
ED - Drossel, Kerstin
ED - Vennemann, Mario
ID - 27849
T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich
TI - Lehrkräftekooperation im Kontext des Lernens und Lehrens mit digitalen Medien
ER -
TY - CHAP
AU - Eickelmann, Birgit
AU - Drossel, Kerstin
AU - Labusch, Amelie
ED - Eickelmann, Birgit
ED - Labusch, Amelie
ED - Drossel, Kerstin
ED - Vennemann, Mario
ID - 27855
T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich
TI - Schulischer IT-Support: Sichtweisen und Zuständigkeiten
ER -
TY - CHAP
AU - Labusch, Amelie
AU - Eickelmann, Birgit
AU - Drossel, Kerstin
ED - Eickelmann, Birgit
ED - Labusch, Amelie
ED - Drossel, Kerstin
ED - Vennemann, Mario
ID - 27856
T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich
TI - Schulische IT-Ausstattung und Wahrnehmung der IT-Ausstattungsqualität
ER -
TY - CHAP
AU - Conze, Daniela
AU - Drossel, Kerstin
AU - Eickelmann, Birgit
ED - Kaspar, Kai
ED - Becker-Mrotzek, Michael
ED - Hofhues, Sandra
ED - König, Johannes
ED - Schmeinck, Daniela
ID - 27862
T2 - Bildung, Schule und Digitalisierung
TI - Lehrer*innenbildung in virtuellen Lernnetzwerken – Warum engagieren sich Lehrkräfte im #twitterlehrerzimmer?
ER -
TY - CHAP
AU - Eickelmann, Birgit
AU - Labusch, Amelie
AU - Drossel, Kerstin
AU - Vennemann, Mario
ED - Eickelmann, Birgit
ED - Labusch, Amelie
ED - Drossel, Kerstin
ED - Vennemann, Mario
ID - 27857
T2 - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich
TI - Anlage der Studie ICILS 2018-NRW
ER -
TY - JOUR
AU - Eickelmann, Birgit
AU - Drossel, Kerstin
ID - 27861
JF - SchulVerwaltung NRW
TI - Schulschließungen und Perspektiven für die Pandemie-Zeit - Ergebnisse der Studie ‚Schule auf Distanz‘
VL - 9
ER -
TY - BOOK
ED - Eickelmann, Birgit
ED - Labusch, Amelie
ED - Drossel, Kerstin
ED - Vennemann, Mario
ID - 27858
TI - ICILS 2018 #NRW. Vertiefende Analysen und Befunde für Nordrhein-Westfalen im internationalen Vergleich
ER -
TY - JOUR
AU - Rezat, Sara
AU - Rezat, Sebastian
ID - 33594
JF - Die Grundschulzeitschrift 320
TI - Schulbücher. Werkzeuge zum Üben in den Fächern Deutsch und Mathematik
ER -
TY - CHAP
AU - Rezat, Sebastian
ED - Meister, Dorothee
ED - Ilka, Mindt
ID - 44688
SN - 2512-112X
T2 - Mobile Medien im Schulkontext
TI - Mathematiklernen mit digitalen Schulbüchern im Spannungsfeld zwischen Individualisierung und Kooperation
ER -
TY - CHAP
AU - Schreckenberg, Stefan
ED - Chihaia, Matei
ED - Henningfeld, Ursula
ID - 44692
T2 - Guernica entre ícono y mito. Productividad y presencia de memorias colectivas
TI - Miradas francesas sobre Gernika y Guernica
ER -
TY - CONF
AU - Gräßler, Iris
AU - Hentze, Julian
AU - Hesse, Philipp
ID - 23523
SN - 978-94-6384-131-
T2 - Proceedings of TMCE Conference 2020
TI - Anchoring Points as a Method for Interdisciplinary Systems Engineering with the New V-Model
ER -
TY - JOUR
AU - Gerhardts, L.
AU - Kamin, A.M.
AU - Meister, Dorothee M.
AU - Richter, L.
AU - Teichert, Jeannine
ID - 44204
IS - 6
JF - PraxisForschungLehrer*innenBildung
TI - Entwicklung von Selbstlern- und Medienkompetenz im Homeschooling – Chancen und konzeptionelle Anforderungen
VL - 2
ER -
TY - JOUR
AU - Gerhardts, L.
AU - Kamin, A.M.
AU - Meister, Dorothee M.
AU - Richter, L.
AU - Teichert, Jeannine
ID - 44203
IS - 2
JF - Medienimpulse
TI - Lernen auf Distanz – Einblicke in den familialen Alltag des Homeschoolings und Formen der Bewältigung
VL - 58
ER -
TY - JOUR
AU - Teichert, Jeannine
ID - 44201
JF - merzWissenschaft
TI - Ich habe auch Facebook-Freunde“ – Erinnerungspraktiken in vergangenen Freundschaften
VL - 6
ER -
TY - JOUR
AU - Lu, You
AU - Luo, Rong
AU - Schubert, Michael
AU - Steffen, Eckhard
AU - Zhang, Cun-Quan
ID - 13114
JF - SIAM J. Discrete Math
TI - Flows on signed graphs without long barbells
VL - 34 (4)
ER -
TY - JOUR
AU - Jin, Ligang
AU - Steffen, Eckhard
ID - 12971
JF - J. of Combinatorics
TI - Unions of 1-factors in r-graphs and overfull graphs
VL - 11
ER -
TY - JOUR
AU - Dreßler, C.
AU - Kabbe, G.
AU - Brehm, Martin
AU - Sebastiani, D.
ID - 44995
JF - J. Chem. Phys.
TI - Exploring Non-Equilibrium Molecular Dynamics of Mobile Protons in the Solid Acid CsH2PO4 on the Micrometer and Microsecond Scale
VL - 152 (16)
ER -
TY - JOUR
AU - Brehm, Martin
AU - Radicke, J.
AU - Pulst, M.
AU - Shaabani, F.
AU - Sebastiani, D.
AU - Kressler, J.
ID - 44997
JF - Molecules
TI - Dissolving Cellulose in 1,2,3-Triazolium- and Imidazolium-Based Ionic Liquids with Aromatic Anions
VL - 25 (15)
ER -
TY - JOUR
AU - Hunold, J.
AU - Eisermann, J.
AU - Brehm, Martin
AU - Hinderberger, D.
ID - 44998
JF - J. Phys. Chem. B
TI - Characterization of Aqueous Lower Polarity Solvation Shells Around Amphiphilic TEMPO Radicals in Water
VL - 124 (39)
ER -
TY - JOUR
AU - Scarbath-Evers, L.
AU - Hammer, R.
AU - Golze, D.
AU - Brehm, Martin
AU - Sebastiani, D.
AU - Widdra, W.
ID - 44993
JF - Nanoscale
TI - From Flat to Tilted: Gradual Interfaces in Organic Thin Film Growth
VL - 12
ER -
TY - JOUR
AU - Dreßler, C.
AU - Kabbe, G.
AU - Brehm, Martin
AU - Sebastiani, D.
ID - 44994
JF - J. Chem. Phys.
TI - Dynamical Matrix Propagator Scheme for Large-Scale Proton Dynamics Simulations
VL - 152 (11)
ER -
TY - JOUR
AU - Weiß, M.
AU - Brehm, Martin
ID - 44999
JF - Molecules
TI - Exploring Free Energy Profiles of Enantioselective Organocatalytic Aldol Reactions under Full Solvent Influence
VL - 25 (24)
ER -
TY - JOUR
AU - Brehm, Martin
AU - Thomas, M.
AU - Gehrke, S.
AU - Kirchner, B.
ID - 44996
JF - J. Chem. Phys.
TI - TRAVIS – A Free Analyzer for Trajectories from Molecular Simulation
VL - 152 (16)
ER -
TY - JOUR
AU - Ditter, Jan
AU - Aubel, Tobias
AU - Meschut, Gerson
ID - 45072
IS - 1
JF - adhesion ADHESIVES + SEALANTS
KW - Polymers and Plastics
KW - General Chemical Engineering
KW - General Chemistry
SN - 2192-2624
TI - Simple Determination of Fast Curing Parameters for Bonded Structures
VL - 17
ER -
TY - JOUR
AU - Ditter, Jan
AU - Meschut, Gerson
AU - Wibbeke, Tim Michael
ID - 45077
IS - 3
JF - adhesion ADHESIVES + SEALANTS
KW - Polymers and Plastics
KW - General Chemical Engineering
KW - General Chemistry
SN - 2192-2624
TI - Joining and Disjoining Concepts for Adhesive Bonded Lightweight Structures
VL - 16
ER -
TY - JOUR
AU - Haines, Mackenzie
AU - Murray, Amanda M.
AU - Glaviano, Neal R.
AU - Gokeler, Alli
AU - Norte, Grant E.
ID - 45125
JF - Human Movement Science
KW - Experimental and Cognitive Psychology
KW - Orthopedics and Sports Medicine
KW - General Medicine
KW - Biophysics
SN - 0167-9457
TI - Restricting ankle dorsiflexion does not mitigate the benefits of external focus of attention on landing biomechanics in healthy females
VL - 74
ER -
TY - JOUR
AB - Abstract
Purpose
It has been reported that there is no correlation between anterior tibia translation (ATT) in passive and dynamic situations. Passive ATT (ATTp) may be different to dynamic ATT (ATTd) due to muscle activation patterns. This study aimed to investigate whether muscle activation during jumping can control ATT in healthy participants.
Methods
ATTp of twenty-one healthy participants was measured using a KT-1000 arthrometer. All participants performed single leg hops for distance during which ATTd, knee flexion angles and knee flexion moments were measured using a 3D motion capture system. During both tests, sEMG signals were recorded.
Results
A negative correlation was found between ATTp and the maximal ATTd (r = − 0.47, p = 0.028). An N-Way ANOVA showed that larger semitendinosus activity was seen when ATTd was larger, while less biceps femoris activity and rectus femoris activity were seen. Moreover, larger knee extension moment, knee flexion angle and ground reaction force in the anterior-posterior direction were seen when ATTd was larger.
Conclusion
Participants with more ATTp showed smaller ATTd during jump landing. Muscle activation did not contribute to reduce ATTd during impact of a jump-landing at the observed knee angles. However, subjects with large ATTp landed with less knee flexion and consequently showed less ATTd. The results of this study give information on how healthy people control knee laxity during jump-landing.
Level of evidence
III
AU - Keizer, Michèle N. J.
AU - Hijmans, Juha M.
AU - Gokeler, Alli
AU - Benjaminse, Anne
AU - Otten, Egbert
ID - 45126
IS - 1
JF - Journal of Experimental Orthopaedics
KW - Orthopedics and Sports Medicine
SN - 2197-1153
TI - Healthy subjects with lax knees use less knee flexion rather than muscle control to limit anterior tibia translation during landing
VL - 7
ER -
TY - JOUR
AB - Abstract
Purpose
An increased posterior tibia plateau angle is associated with increased risk for anterior cruciate ligament injury and re-rupture after reconstruction. The aims of this study were to determine whether the tibia plateau angle correlates with dynamic anterior tibia translation (ATT) after an anterior cruciate ligament reconstruction and whether the tibia plateau angle correlates with aspects of knee kinematics and kinetics during jump landing.
Methods
Thirty-seven patients after anterior cruciate ligament reconstruction with autograft hamstring tendon were included. Knee flexion angle and knee extension moment during single leg hops for distance were determined using a motion capture system and the dynamic ATT with its embedded method. The medial and lateral posterior tibia plateau angle were measured using MRI. Moreover, passive ATT was measured using the KT-1000 arthrometer.
Results
A weak negative correlation was found between the maximal dynamic ATT and the medial tibia plateau angle (p = 0.028, r = − 0.36) and between the maximal knee flexion angle and the lateral tibia plateau angle (p = 0.025, r = − 0.37) during landing. Patients with a smaller lateral tibia plateau angle show larger maximal knee flexion angle during landing than the patients with larger lateral tibia plateau angle. Also, the lateral tibia plateau angle is associated the amount of with muscle activity.
Conclusion
The posterior medical tibia plateau angle is associated with dynamic ATT. The maximal knee flexion angle and muscle activity are associated with the posterior lateral tibia plateau angle.
Level of evidence
III
AU - Keizer, Michèle N. J.
AU - Hijmans, Juha M.
AU - Gokeler, Alli
AU - Otten, Egbert
AU - Brouwer, Reinoud W.
ID - 45127
IS - 1
JF - Journal of Experimental Orthopaedics
KW - Orthopedics and Sports Medicine
SN - 2197-1153
TI - Sagittal knee kinematics in relation with the posterior tibia slope during jump landing after an anterior cruciate ligament reconstruction
VL - 7
ER -
TY - JOUR
AU - Letafatkar, Amir
AU - Rabiei, Pouya
AU - Ghanati, Hadi Abbaszadeh
AU - Khosrokiani, Zohre
AU - Ghahremani, Naji
AU - Gokeler, Alli
ID - 45128
IS - 4
JF - Sport Sciences for Health
KW - Orthopedics and Sports Medicine
SN - 1824-7490
TI - Training athletes with an external attentional focus enhances athletic performance during countermovement jump
VL - 16
ER -
TY - GEN
AU - N., N.
ID - 42307
TI - Weitsichtigkeit zur Bildung stabiler Koalitionen - eine spieltheoretische Analyse
ER -
TY - GEN
AU - N., N.
ID - 42308
TI - Verhandeltes strategisches Verhalten
ER -
TY - GEN
AU - N., N.
ID - 42301
TI - Kronzeugenprogramme zur Aufdeckung von Kartellen - Eine spieltheoretische Analyse
ER -
TY - GEN
AU - N., N.
ID - 42299
TI - Eine ökonomische Analyse der Piraterie in zweiseitigen Softwaremärkten
ER -
TY - GEN
AU - N., N.
ID - 42304
TI - Kulturelle Unterschiede beim Lösen von Verhandlungsproblemen
ER -
TY - GEN
AU - N., N.
ID - 42298
TI - Productivity optimization through project matching
ER -
TY - GEN
AU - N., N.
ID - 42306
TI - Matching Mechanisms and Organ Exchange
ER -
TY - GEN
AU - N., N.
ID - 42300
TI - Cartel Fines in the European Union
ER -
TY - GEN
AU - N., N.
ID - 42302
TI - Anspruchsregeln in Verhandlungen
ER -
TY - GEN
AU - N., N.
ID - 42292
TI - Die Zusammenstellung eines Sortiments als Beispiel interdependenter Verhandlungen
ER -
TY - GEN
AU - N., N.
ID - 42294
TI - Matching in Netzwerken
ER -