---
_id: '31545'
abstract:
- lang: eng
text: Knowledge graph embedding research has mainly focused on learning continuous
representations of entities and relations tailored towards the link prediction
problem. Recent results indicate an ever increasing predictive ability of current
approaches on benchmark datasets. However, this effectiveness often comes with
the cost of over-parameterization and increased computationally complexity. The
former induces extensive hyperparameter optimization to mitigate malicious overfitting.
The latter magnifies the importance of winning the hardware lottery. Here, we
investigate a remedy for the first problem. We propose a technique based on Kronecker
decomposition to reduce the number of parameters in a knowledge graph embedding
model, while retaining its expressiveness. Through Kronecker decomposition, large
embedding matrices are split into smaller embedding matrices during the training
process. Hence, embeddings of knowledge graphs are not plainly retrieved but reconstructed
on the fly. The decomposition ensures that elementwise interactions between three
embedding vectors are extended with interactions within each embedding vector.
This implicitly reduces redundancy in embedding vectors and encourages feature
reuse. To quantify the impact of applying Kronecker decomposition on embedding
matrices, we conduct a series of experiments on benchmark datasets. Our experiments
suggest that applying Kronecker decomposition on embedding matrices leads to an
improved parameter efficiency on all benchmark datasets. Moreover, empirical evidence
suggests that reconstructed embeddings entail robustness against noise in the
input knowledge graph. To foster reproducible research, we provide an open-source
implementation of our approach, including training and evaluation scripts as well
as pre-trained models in our knowledge graph embedding framework.
author:
- first_name: Caglar
full_name: Demir, Caglar
id: '43817'
last_name: Demir
- first_name: Julian
full_name: Lienen, Julian
id: '44040'
last_name: Lienen
- first_name: Axel-Cyrille
full_name: Ngonga Ngomo, Axel-Cyrille
id: '65716'
last_name: Ngonga Ngomo
citation:
ama: Demir C, Lienen J, Ngonga Ngomo A-C. Kronecker Decomposition for Knowledge
Graph Embeddings. arXiv:220506560. Published online 2022.
apa: Demir, C., Lienen, J., & Ngonga Ngomo, A.-C. (2022). Kronecker Decomposition
for Knowledge Graph Embeddings. In arXiv:2205.06560.
bibtex: '@article{Demir_Lienen_Ngonga Ngomo_2022, title={Kronecker Decomposition
for Knowledge Graph Embeddings}, journal={arXiv:2205.06560}, author={Demir, Caglar
and Lienen, Julian and Ngonga Ngomo, Axel-Cyrille}, year={2022} }'
chicago: Demir, Caglar, Julian Lienen, and Axel-Cyrille Ngonga Ngomo. “Kronecker
Decomposition for Knowledge Graph Embeddings.” ArXiv:2205.06560, 2022.
ieee: C. Demir, J. Lienen, and A.-C. Ngonga Ngomo, “Kronecker Decomposition for
Knowledge Graph Embeddings,” arXiv:2205.06560. 2022.
mla: Demir, Caglar, et al. “Kronecker Decomposition for Knowledge Graph Embeddings.”
ArXiv:2205.06560, 2022.
short: C. Demir, J. Lienen, A.-C. Ngonga Ngomo, ArXiv:2205.06560 (2022).
date_created: 2022-05-31T07:04:36Z
date_updated: 2022-05-31T07:05:50Z
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2205.06560
oa: '1'
publication: arXiv:2205.06560
status: public
title: Kronecker Decomposition for Knowledge Graph Embeddings
type: preprint
user_id: '44040'
year: '2022'
...
---
_id: '31556'
abstract:
- lang: ger
text: Mehrzieloptimierung behandelt Probleme, bei denen mehrere skalare Zielfunktionen
simultan optimiert werden sollen. Ein Punkt ist in diesem Fall optimal, wenn es
keinen anderen Punkt gibt, der mindestens genauso gut ist in allen Zielfunktionen
und besser in mindestens einer Zielfunktion. Ein notwendiges Optimalitätskriterium
lässt sich über Ableitungsinformationen erster Ordnung der Zielfunktionen herleiten.
Die Menge der Punkte, die dieses notwendige Kriterium erfüllen, wird als Pareto-kritische
Menge bezeichnet. Diese Arbeit enthält neue Resultate über Pareto-kritische Mengen
für glatte und nicht-glatte Mehrzieloptimierungsprobleme, sowohl was deren Berechnung
betrifft als auch deren Struktur. Im glatten Fall erfolgt die Berechnung über
ein Fortsetzungsverfahren, im nichtglatten Fall über ein Abstiegsverfahren. Anschließend
wird die Struktur des Randes der Pareto-kritischen Menge analysiert, welcher aus
Pareto-kritischen Mengen kleinerer Subprobleme besteht. Schlussendlich werden
inverse Probleme betrachtet, bei denen zu einer gegebenen Datenmenge ein Zielfunktionsvektor
gefunden werden soll, für den die Datenpunkte kritisch sind.
- lang: eng
text: Multiobjective optimization is concerned with the simultaneous optimization
of multiple scalar-valued functions. In this case, a point is optimal if there
is no other point that is at least as good in all objectives and better in at
least one objective. A necessary condition for optimality can be derived based
on first-order information of the objectives. The set of points that satisfy this
necessary condition is called the Pareto critical set. This thesis presents new
results about Pareto critical sets for smooth and nonsmooth multiobjective optimization
problems, both in terms of their efficient computation and structural properties.
In the smooth case they are computed via a continuation method and in the nonsmooth
case via a descent method. Afterwards, the structure of the boundary of the Pareto
critical set is analyzed, which consists of Pareto critical sets of smaller subproblems.
Finally, inverse problems are considered, where a data set is given and an objective
vector is sought for which the data points are critical.
author:
- first_name: Bennet
full_name: Gebken, Bennet
id: '32643'
last_name: Gebken
citation:
ama: Gebken B. Computation and Analysis of Pareto Critical Sets in Smooth and
Nonsmooth Multiobjective Optimization.; 2022. doi:10.17619/UNIPB/1-1327
apa: Gebken, B. (2022). Computation and analysis of Pareto critical sets in smooth
and nonsmooth multiobjective optimization. https://doi.org/10.17619/UNIPB/1-1327
bibtex: '@book{Gebken_2022, title={Computation and analysis of Pareto critical sets
in smooth and nonsmooth multiobjective optimization}, DOI={10.17619/UNIPB/1-1327},
author={Gebken, Bennet}, year={2022} }'
chicago: Gebken, Bennet. Computation and Analysis of Pareto Critical Sets in
Smooth and Nonsmooth Multiobjective Optimization, 2022. https://doi.org/10.17619/UNIPB/1-1327.
ieee: B. Gebken, Computation and analysis of Pareto critical sets in smooth and
nonsmooth multiobjective optimization. 2022.
mla: Gebken, Bennet. Computation and Analysis of Pareto Critical Sets in Smooth
and Nonsmooth Multiobjective Optimization. 2022, doi:10.17619/UNIPB/1-1327.
short: B. Gebken, Computation and Analysis of Pareto Critical Sets in Smooth and
Nonsmooth Multiobjective Optimization, 2022.
date_created: 2022-06-01T06:48:08Z
date_updated: 2022-06-01T07:13:09Z
department:
- _id: '101'
doi: 10.17619/UNIPB/1-1327
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://digital.ub.uni-paderborn.de/hs/download/pdf/6531779
oa: '1'
status: public
supervisor:
- first_name: Michael
full_name: Dellnitz, Michael
last_name: Dellnitz
title: Computation and analysis of Pareto critical sets in smooth and nonsmooth multiobjective
optimization
type: dissertation
user_id: '32643'
year: '2022'
...
---
_id: '33009'
abstract:
- lang: eng
text: "Abstract\r\n Purpose\r\n
\ The present work aimed to delineate (i) a revised protocol
according to recent methodological developments in evidence generation, to (ii)
describe its interpretation, the assessment of the overall certainty of evidence
and to (iii) outline an Evidence to Decision framework for deriving an evidence-based
guideline on quantitative and qualitative aspects of dietary protein intake.\r\n
\ \r\n Methods\r\n
\ A methodological protocol to systematically investigate
the association between dietary protein intake and several health outcomes and
for deriving dietary protein intake recommendations for the primary prevention
of various non-communicable diseases in the general adult population was developed.\r\n
\ \r\n Results\r\n
\ The developed methodological protocol relies on umbrella
reviews including systematic reviews with or without meta-analyses. Systematic
literature searches in three databases will be performed for each health-related
outcome. The methodological quality of all selected systematic reviews will be
evaluated using a modified version of AMSTAR 2, and the outcome-specific certainty
of evidence for systematic reviews with or without meta-analysis will be assessed
with NutriGrade. The general outline of the Evidence to Decision framework foresees
that recommendations in the derived guideline will be given based on the overall
certainty of evidence as well as on additional criteria such as sustainability.\r\n
\ \r\n Conclusion\r\n
\ The methodological protocol permits a systematic evaluation
of published systematic reviews on dietary protein intake and its association
with selected health-related outcomes. An Evidence to Decision framework will
be the basis for the overall conclusions and the resulting recommendations for
dietary protein intake.\r\n "
author:
- first_name: Anja
full_name: Kroke, Anja
last_name: Kroke
- first_name: Annemarie
full_name: Schmidt, Annemarie
last_name: Schmidt
- first_name: Anna M.
full_name: Amini, Anna M.
last_name: Amini
- first_name: Nicole
full_name: Kalotai, Nicole
last_name: Kalotai
- first_name: Andreas
full_name: Lehmann, Andreas
last_name: Lehmann
- first_name: Julia
full_name: Haardt, Julia
last_name: Haardt
- first_name: Jürgen M.
full_name: Bauer, Jürgen M.
last_name: Bauer
- first_name: Heike A.
full_name: Bischoff-Ferrari, Heike A.
last_name: Bischoff-Ferrari
- first_name: Heiner
full_name: Boeing, Heiner
last_name: Boeing
- first_name: Sarah
full_name: Egert, Sarah
last_name: Egert
- first_name: Sabine
full_name: Ellinger, Sabine
last_name: Ellinger
- first_name: Tilman
full_name: Kühn, Tilman
last_name: Kühn
- first_name: Sandrine
full_name: Louis, Sandrine
last_name: Louis
- first_name: Stefan
full_name: Lorkowski, Stefan
last_name: Lorkowski
- first_name: Katharina
full_name: Nimptsch, Katharina
last_name: Nimptsch
- first_name: Thomas
full_name: Remer, Thomas
last_name: Remer
- first_name: Matthias B.
full_name: Schulze, Matthias B.
last_name: Schulze
- first_name: Roswitha
full_name: Siener, Roswitha
last_name: Siener
- first_name: Gabriele I.
full_name: Stangl, Gabriele I.
last_name: Stangl
- first_name: Dorothee
full_name: Volkert, Dorothee
last_name: Volkert
- first_name: Armin
full_name: Zittermann, Armin
last_name: Zittermann
- first_name: Anette E.
full_name: Buyken, Anette E.
id: '65985'
last_name: Buyken
- first_name: Bernhard
full_name: Watzl, Bernhard
last_name: Watzl
- first_name: Lukas
full_name: Schwingshackl, Lukas
last_name: Schwingshackl
citation:
ama: 'Kroke A, Schmidt A, Amini AM, et al. Dietary protein intake and health-related
outcomes: a methodological protocol for the evidence evaluation and the outline
of an evidence to decision framework underlying the evidence-based guideline of
the German Nutrition Society. European Journal of Nutrition. 2022;61(4):2091-2101.
doi:10.1007/s00394-021-02789-5'
apa: 'Kroke, A., Schmidt, A., Amini, A. M., Kalotai, N., Lehmann, A., Haardt, J.,
Bauer, J. M., Bischoff-Ferrari, H. A., Boeing, H., Egert, S., Ellinger, S., Kühn,
T., Louis, S., Lorkowski, S., Nimptsch, K., Remer, T., Schulze, M. B., Siener,
R., Stangl, G. I., … Schwingshackl, L. (2022). Dietary protein intake and health-related
outcomes: a methodological protocol for the evidence evaluation and the outline
of an evidence to decision framework underlying the evidence-based guideline of
the German Nutrition Society. European Journal of Nutrition, 61(4),
2091–2101. https://doi.org/10.1007/s00394-021-02789-5'
bibtex: '@article{Kroke_Schmidt_Amini_Kalotai_Lehmann_Haardt_Bauer_Bischoff-Ferrari_Boeing_Egert_et
al._2022, title={Dietary protein intake and health-related outcomes: a methodological
protocol for the evidence evaluation and the outline of an evidence to decision
framework underlying the evidence-based guideline of the German Nutrition Society},
volume={61}, DOI={10.1007/s00394-021-02789-5},
number={4}, journal={European Journal of Nutrition}, publisher={Springer Science
and Business Media LLC}, author={Kroke, Anja and Schmidt, Annemarie and Amini,
Anna M. and Kalotai, Nicole and Lehmann, Andreas and Haardt, Julia and Bauer,
Jürgen M. and Bischoff-Ferrari, Heike A. and Boeing, Heiner and Egert, Sarah and
et al.}, year={2022}, pages={2091–2101} }'
chicago: 'Kroke, Anja, Annemarie Schmidt, Anna M. Amini, Nicole Kalotai, Andreas
Lehmann, Julia Haardt, Jürgen M. Bauer, et al. “Dietary Protein Intake and Health-Related
Outcomes: A Methodological Protocol for the Evidence Evaluation and the Outline
of an Evidence to Decision Framework Underlying the Evidence-Based Guideline of
the German Nutrition Society.” European Journal of Nutrition 61, no. 4
(2022): 2091–2101. https://doi.org/10.1007/s00394-021-02789-5.'
ieee: 'A. Kroke et al., “Dietary protein intake and health-related outcomes:
a methodological protocol for the evidence evaluation and the outline of an evidence
to decision framework underlying the evidence-based guideline of the German Nutrition
Society,” European Journal of Nutrition, vol. 61, no. 4, pp. 2091–2101,
2022, doi: 10.1007/s00394-021-02789-5.'
mla: 'Kroke, Anja, et al. “Dietary Protein Intake and Health-Related Outcomes: A
Methodological Protocol for the Evidence Evaluation and the Outline of an Evidence
to Decision Framework Underlying the Evidence-Based Guideline of the German Nutrition
Society.” European Journal of Nutrition, vol. 61, no. 4, Springer Science
and Business Media LLC, 2022, pp. 2091–101, doi:10.1007/s00394-021-02789-5.'
short: A. Kroke, A. Schmidt, A.M. Amini, N. Kalotai, A. Lehmann, J. Haardt, J.M.
Bauer, H.A. Bischoff-Ferrari, H. Boeing, S. Egert, S. Ellinger, T. Kühn, S. Louis,
S. Lorkowski, K. Nimptsch, T. Remer, M.B. Schulze, R. Siener, G.I. Stangl, D.
Volkert, A. Zittermann, A.E. Buyken, B. Watzl, L. Schwingshackl, European Journal
of Nutrition 61 (2022) 2091–2101.
date_created: 2022-08-18T10:36:12Z
date_updated: 2022-08-18T10:41:41Z
department:
- _id: '17'
- _id: '22'
- _id: '571'
doi: 10.1007/s00394-021-02789-5
intvolume: ' 61'
issue: '4'
keyword:
- Nutrition and Dietetics
- Medicine (miscellaneous)
language:
- iso: eng
page: 2091-2101
publication: European Journal of Nutrition
publication_identifier:
issn:
- 1436-6207
- 1436-6215
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: 'Dietary protein intake and health-related outcomes: a methodological protocol
for the evidence evaluation and the outline of an evidence to decision framework
underlying the evidence-based guideline of the German Nutrition Society'
type: journal_article
user_id: '61597'
volume: 61
year: '2022'
...
---
_id: '29934'
abstract:
- lang: eng
text: Tire and road wear are a major source of emissions of nonexhaust particulate
matter (PM) and make up the largest share of microplastics in the environment.
To reduce tire wear through numerical optimization of a vehicle's suspension system,
fast simulations of the representative usage of a vehicle are needed. Therefore,
this contribution evaluates if instead of a full simulation of a representative
test drive, only specific driving maneuvers resulting from a clustering of the
driving data can be used to predict tire wear. As a measure for tire wear, the
friction work between tire and road is calculated. It is shown that enough clusters
result in negligible deviations between the total friction work of the full simulation
and the cluster simulations as well as between the distributions of the friction
work over the tire width. The calculation time can be reduced to about 1% of the
full simulation.
author:
- first_name: Lars
full_name: Muth, Lars
id: '77313'
last_name: Muth
orcid: 0000-0002-2938-5616
- first_name: Christian
full_name: Noll, Christian
last_name: Noll
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: 'Muth L, Noll C, Sextro W. Generation of a Reduced, Representative, Virtual
Test Drive for Fast Evaluation of Tire Wear by Clustering of Driving Data. In:
Orlova A, Cole D, eds. Advances in Dynamics of Vehicles on Roads and Tracks
II - Proceedings of the 27th Symposium of the International Association of Vehicle
System Dynamics, IAVSD 2021. Lecture Notes in Mechanical Engineering. Springer;
2022. doi:10.1007/978-3-031-07305-2_92'
apa: Muth, L., Noll, C., & Sextro, W. (2022). Generation of a Reduced, Representative,
Virtual Test Drive for Fast Evaluation of Tire Wear by Clustering of Driving Data.
In A. Orlova & D. Cole (Eds.), Advances in Dynamics of Vehicles on Roads
and Tracks II - Proceedings of the 27th Symposium of the International Association
of Vehicle System Dynamics, IAVSD 2021. Springer. https://doi.org/10.1007/978-3-031-07305-2_92
bibtex: '@inproceedings{Muth_Noll_Sextro_2022, place={Cham}, series={Lecture Notes
in Mechanical Engineering}, title={Generation of a Reduced, Representative, Virtual
Test Drive for Fast Evaluation of Tire Wear by Clustering of Driving Data}, DOI={10.1007/978-3-031-07305-2_92},
booktitle={Advances in Dynamics of Vehicles on Roads and Tracks II - Proceedings
of the 27th Symposium of the International Association of Vehicle System Dynamics,
IAVSD 2021}, publisher={Springer}, author={Muth, Lars and Noll, Christian and
Sextro, Walter}, editor={Orlova, Anna and Cole, David}, year={2022}, collection={Lecture
Notes in Mechanical Engineering} }'
chicago: 'Muth, Lars, Christian Noll, and Walter Sextro. “Generation of a Reduced,
Representative, Virtual Test Drive for Fast Evaluation of Tire Wear by Clustering
of Driving Data.” In Advances in Dynamics of Vehicles on Roads and Tracks II
- Proceedings of the 27th Symposium of the International Association of Vehicle
System Dynamics, IAVSD 2021, edited by Anna Orlova and David Cole. Lecture
Notes in Mechanical Engineering. Cham: Springer, 2022. https://doi.org/10.1007/978-3-031-07305-2_92.'
ieee: 'L. Muth, C. Noll, and W. Sextro, “Generation of a Reduced, Representative,
Virtual Test Drive for Fast Evaluation of Tire Wear by Clustering of Driving Data,”
in Advances in Dynamics of Vehicles on Roads and Tracks II - Proceedings of
the 27th Symposium of the International Association of Vehicle System Dynamics,
IAVSD 2021, Saint Petersburg, Russia, 2022, doi: 10.1007/978-3-031-07305-2_92.'
mla: Muth, Lars, et al. “Generation of a Reduced, Representative, Virtual Test Drive
for Fast Evaluation of Tire Wear by Clustering of Driving Data.” Advances in
Dynamics of Vehicles on Roads and Tracks II - Proceedings of the 27th Symposium
of the International Association of Vehicle System Dynamics, IAVSD 2021, edited
by Anna Orlova and David Cole, Springer, 2022, doi:10.1007/978-3-031-07305-2_92.
short: 'L. Muth, C. Noll, W. Sextro, in: A. Orlova, D. Cole (Eds.), Advances in
Dynamics of Vehicles on Roads and Tracks II - Proceedings of the 27th Symposium
of the International Association of Vehicle System Dynamics, IAVSD 2021, Springer,
Cham, 2022.'
conference:
end_date: 2021-08-19
location: Saint Petersburg, Russia
name: 27th IAVSD Symposium on Dynamics of Vehicles on Roads and Tracks, IAVSD 2021
start_date: 2021-08-17
date_created: 2022-02-21T14:14:11Z
date_updated: 2022-08-23T11:55:07Z
department:
- _id: '151'
doi: 10.1007/978-3-031-07305-2_92
editor:
- first_name: Anna
full_name: Orlova, Anna
last_name: Orlova
- first_name: David
full_name: Cole, David
last_name: Cole
keyword:
- Tire Wear
- Vehicle Dynamics
- Clustering
- Virtual Test
language:
- iso: eng
main_file_link:
- url: https://link.springer.com/chapter/10.1007/978-3-031-07305-2_92
place: Cham
publication: Advances in Dynamics of Vehicles on Roads and Tracks II - Proceedings
of the 27th Symposium of the International Association of Vehicle System Dynamics,
IAVSD 2021
publication_identifier:
eisbn:
- 978-3-031-07305-2
isbn:
- 978-3-031-07304-5
publication_status: published
publisher: Springer
quality_controlled: '1'
series_title: Lecture Notes in Mechanical Engineering
status: public
title: Generation of a Reduced, Representative, Virtual Test Drive for Fast Evaluation
of Tire Wear by Clustering of Driving Data
type: conference
user_id: '77313'
year: '2022'
...
---
_id: '33090'
abstract:
- lang: eng
text: 'AbstractHeated tool butt welding is a method
often used for joining thermoplastics, especially when the components are made
out of different materials. The quality of the connection between the components
crucially depends on a suitable choice of the parameters of the welding process,
such as heating time, temperature, and the precise way how the parts are then
welded. Moreover, when different materials are to be joined, the parameter values
need to be tailored to the specifics of the respective material. To this end,
in this paper, three approaches to tailor the parameter values to optimize the
quality of the connection are compared: a heuristic by Potente, statistical experimental
design, and Bayesian optimization. With the suitability for practice in mind,
a series of experiments are carried out with these approaches, and their capabilities
of proposing well-performing parameter values are investigated. As a result, Bayesian
optimization is found to yield peak performance, but the costs for optimization
are substantial. In contrast, the Potente heuristic does not require any experimentation
and recommends parameter values with competitive quality.'
author:
- first_name: Karina
full_name: Gevers, Karina
id: '83151'
last_name: Gevers
- first_name: Alexander
full_name: Tornede, Alexander
id: '38209'
last_name: Tornede
- first_name: Marcel Dominik
full_name: Wever, Marcel Dominik
id: '33176'
last_name: Wever
orcid: ' https://orcid.org/0000-0001-9782-6818'
- first_name: Volker
full_name: Schöppner, Volker
id: '20530'
last_name: Schöppner
- first_name: Eyke
full_name: Hüllermeier, Eyke
id: '48129'
last_name: Hüllermeier
citation:
ama: Gevers K, Tornede A, Wever MD, Schöppner V, Hüllermeier E. A comparison of
heuristic, statistical, and machine learning methods for heated tool butt welding
of two different materials. Welding in the World. Published online 2022.
doi:10.1007/s40194-022-01339-9
apa: Gevers, K., Tornede, A., Wever, M. D., Schöppner, V., & Hüllermeier, E.
(2022). A comparison of heuristic, statistical, and machine learning methods for
heated tool butt welding of two different materials. Welding in the World.
https://doi.org/10.1007/s40194-022-01339-9
bibtex: '@article{Gevers_Tornede_Wever_Schöppner_Hüllermeier_2022, title={A comparison
of heuristic, statistical, and machine learning methods for heated tool butt welding
of two different materials}, DOI={10.1007/s40194-022-01339-9},
journal={Welding in the World}, publisher={Springer Science and Business Media
LLC}, author={Gevers, Karina and Tornede, Alexander and Wever, Marcel Dominik
and Schöppner, Volker and Hüllermeier, Eyke}, year={2022} }'
chicago: Gevers, Karina, Alexander Tornede, Marcel Dominik Wever, Volker Schöppner,
and Eyke Hüllermeier. “A Comparison of Heuristic, Statistical, and Machine Learning
Methods for Heated Tool Butt Welding of Two Different Materials.” Welding in
the World, 2022. https://doi.org/10.1007/s40194-022-01339-9.
ieee: 'K. Gevers, A. Tornede, M. D. Wever, V. Schöppner, and E. Hüllermeier, “A
comparison of heuristic, statistical, and machine learning methods for heated
tool butt welding of two different materials,” Welding in the World, 2022,
doi: 10.1007/s40194-022-01339-9.'
mla: Gevers, Karina, et al. “A Comparison of Heuristic, Statistical, and Machine
Learning Methods for Heated Tool Butt Welding of Two Different Materials.” Welding
in the World, Springer Science and Business Media LLC, 2022, doi:10.1007/s40194-022-01339-9.
short: K. Gevers, A. Tornede, M.D. Wever, V. Schöppner, E. Hüllermeier, Welding
in the World (2022).
date_created: 2022-08-24T12:51:07Z
date_updated: 2022-08-24T12:52:06Z
doi: 10.1007/s40194-022-01339-9
keyword:
- Metals and Alloys
- Mechanical Engineering
- Mechanics of Materials
language:
- iso: eng
project:
- _id: '1'
name: 'SFB 901: SFB 901'
- _id: '3'
name: 'SFB 901 - B: SFB 901 - Project Area B'
- _id: '10'
name: 'SFB 901 - B2: SFB 901 - Subproject B2'
publication: Welding in the World
publication_identifier:
issn:
- 0043-2288
- 1878-6669
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: A comparison of heuristic, statistical, and machine learning methods for heated
tool butt welding of two different materials
type: journal_article
user_id: '38209'
year: '2022'
...
---
_id: '33150'
abstract:
- lang: eng
text: In this article, we build on previous work to present an optimization algorithm
for nonlinearly constrained multi-objective optimization problems. The algorithm
combines a surrogate-assisted derivative-free trust-region approach with the filter
method known from single-objective optimization. Instead of the true objective
and constraint functions, so-called fully linear models are employed and we show
how to deal with the gradient inexactness in the composite step setting, adapted
from single-objective optimization as well. Under standard assumptions, we prove
convergence of a subset of iterates to a quasi-stationary point and if constraint
qualifications hold, then the limit point is also a KKT-point of the multi-objective
problem.
author:
- first_name: Manuel Bastian
full_name: Berkemeier, Manuel Bastian
id: '51701'
last_name: Berkemeier
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: 0000-0002-3389-793X
citation:
ama: Berkemeier MB, Peitz S. Multi-Objective Trust-Region Filter Method for Nonlinear
Constraints using Inexact Gradients. arXiv:220812094. Published online
2022.
apa: Berkemeier, M. B., & Peitz, S. (2022). Multi-Objective Trust-Region Filter
Method for Nonlinear Constraints using Inexact Gradients. In arXiv:2208.12094.
bibtex: '@article{Berkemeier_Peitz_2022, title={Multi-Objective Trust-Region Filter
Method for Nonlinear Constraints using Inexact Gradients}, journal={arXiv:2208.12094},
author={Berkemeier, Manuel Bastian and Peitz, Sebastian}, year={2022} }'
chicago: Berkemeier, Manuel Bastian, and Sebastian Peitz. “Multi-Objective Trust-Region
Filter Method for Nonlinear Constraints Using Inexact Gradients.” ArXiv:2208.12094,
2022.
ieee: M. B. Berkemeier and S. Peitz, “Multi-Objective Trust-Region Filter Method
for Nonlinear Constraints using Inexact Gradients,” arXiv:2208.12094. 2022.
mla: Berkemeier, Manuel Bastian, and Sebastian Peitz. “Multi-Objective Trust-Region
Filter Method for Nonlinear Constraints Using Inexact Gradients.” ArXiv:2208.12094,
2022.
short: M.B. Berkemeier, S. Peitz, ArXiv:2208.12094 (2022).
date_created: 2022-08-26T06:08:06Z
date_updated: 2022-08-26T06:12:10Z
department:
- _id: '101'
- _id: '655'
external_id:
arxiv:
- '2208.12094'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/pdf/2208.12094
oa: '1'
publication: arXiv:2208.12094
status: public
title: Multi-Objective Trust-Region Filter Method for Nonlinear Constraints using
Inexact Gradients
type: preprint
user_id: '47427'
year: '2022'
...
---
_id: '33240'
author:
- first_name: Thorsten
full_name: Götte, Thorsten
id: '34727'
last_name: Götte
- first_name: Christian
full_name: Scheideler, Christian
id: '20792'
last_name: Scheideler
citation:
ama: 'Götte T, Scheideler C. Brief Announcement: The (Limited) Power of Multiple
Identities: Asynchronous Byzantine Reliable Broadcast with Improved Resilience
through Collusion. In: Agrawal K, Lee I-TA, eds. SPAA ’22: 34th ACM Symposium
on Parallelism in Algorithms and Architectures, Philadelphia, PA, USA, July 11
- 14, 2022. ACM; 2022:99–101. doi:10.1145/3490148.3538556'
apa: 'Götte, T., & Scheideler, C. (2022). Brief Announcement: The (Limited)
Power of Multiple Identities: Asynchronous Byzantine Reliable Broadcast with Improved
Resilience through Collusion. In K. Agrawal & I.-T. A. Lee (Eds.), SPAA
’22: 34th ACM Symposium on Parallelism in Algorithms and Architectures, Philadelphia,
PA, USA, July 11 - 14, 2022 (pp. 99–101). ACM. https://doi.org/10.1145/3490148.3538556'
bibtex: '@inproceedings{Götte_Scheideler_2022, title={Brief Announcement: The (Limited)
Power of Multiple Identities: Asynchronous Byzantine Reliable Broadcast with Improved
Resilience through Collusion}, DOI={10.1145/3490148.3538556},
booktitle={SPAA ’22: 34th ACM Symposium on Parallelism in Algorithms and Architectures,
Philadelphia, PA, USA, July 11 - 14, 2022}, publisher={ACM}, author={Götte, Thorsten
and Scheideler, Christian}, editor={Agrawal, Kunal and Lee, I-Ting Angelina},
year={2022}, pages={99–101} }'
chicago: 'Götte, Thorsten, and Christian Scheideler. “Brief Announcement: The (Limited)
Power of Multiple Identities: Asynchronous Byzantine Reliable Broadcast with Improved
Resilience through Collusion.” In SPAA ’22: 34th ACM Symposium on Parallelism
in Algorithms and Architectures, Philadelphia, PA, USA, July 11 - 14, 2022,
edited by Kunal Agrawal and I-Ting Angelina Lee, 99–101. ACM, 2022. https://doi.org/10.1145/3490148.3538556.'
ieee: 'T. Götte and C. Scheideler, “Brief Announcement: The (Limited) Power of Multiple
Identities: Asynchronous Byzantine Reliable Broadcast with Improved Resilience
through Collusion,” in SPAA ’22: 34th ACM Symposium on Parallelism in Algorithms
and Architectures, Philadelphia, PA, USA, July 11 - 14, 2022, 2022, pp. 99–101,
doi: 10.1145/3490148.3538556.'
mla: 'Götte, Thorsten, and Christian Scheideler. “Brief Announcement: The (Limited)
Power of Multiple Identities: Asynchronous Byzantine Reliable Broadcast with Improved
Resilience through Collusion.” SPAA ’22: 34th ACM Symposium on Parallelism
in Algorithms and Architectures, Philadelphia, PA, USA, July 11 - 14, 2022,
edited by Kunal Agrawal and I-Ting Angelina Lee, ACM, 2022, pp. 99–101, doi:10.1145/3490148.3538556.'
short: 'T. Götte, C. Scheideler, in: K. Agrawal, I.-T.A. Lee (Eds.), SPAA ’22: 34th
ACM Symposium on Parallelism in Algorithms and Architectures, Philadelphia, PA,
USA, July 11 - 14, 2022, ACM, 2022, pp. 99–101.'
date_created: 2022-09-01T07:55:00Z
date_updated: 2022-09-01T07:57:53Z
department:
- _id: '79'
doi: 10.1145/3490148.3538556
editor:
- first_name: Kunal
full_name: Agrawal, Kunal
last_name: Agrawal
- first_name: I-Ting Angelina
full_name: Lee, I-Ting Angelina
last_name: Lee
language:
- iso: eng
page: 99–101
project:
- _id: '1'
name: 'SFB 901: SFB 901'
- _id: '4'
name: 'SFB 901 - C: SFB 901 - Project Area C'
- _id: '13'
name: 'SFB 901 - C1: SFB 901 - Subproject C1'
publication: 'SPAA ’22: 34th ACM Symposium on Parallelism in Algorithms and Architectures,
Philadelphia, PA, USA, July 11 - 14, 2022'
publisher: ACM
status: public
title: 'Brief Announcement: The (Limited) Power of Multiple Identities: Asynchronous
Byzantine Reliable Broadcast with Improved Resilience through Collusion'
type: conference
user_id: '15504'
year: '2022'
...
---
_id: '30941'
abstract:
- lang: eng
text: "Decision support systems are crucial in helping decision makers to quickly
identify optimal business decisions in increasingly volatile and complex business
environments. However, the ideal DSS for one decision maker may not optimally
address the requirements for decision support of another decision maker. This
is due to differences between\r\ndecision makers in business goals, regulatory
restrictions or availability of resources such as data. By using a suboptimal
DSS, decision makers risk implementing suboptimal decision recommendations which
endanger the success of their business. This presents DSS developers with the
challenge to implement a customizable DSS which can be tailored to the individual
requirements for decision support of a single decision maker. In order to address
this challenge, we suggest a decision support ecosystem in which DSS developers,
decision makers and other domain experts collaborate using a shared platform to
provide and combine reusable decision support services into a tailored DSS. The
contribution of our paper is twofold: First, we define the concept of a decision
support ecosystem with respect to existing digital business ecosystems and discuss
expected benefits and challenges. Second, we present a reference architecture
for a shared platform supporting the realization of a decision support ecosystem.
We demonstrate our contributions in the example application domain of regional
energy distribution network planning."
author:
- first_name: Jonas
full_name: Kirchhoff, Jonas
id: '39928'
last_name: Kirchhoff
- first_name: Christoph
full_name: Weskamp, Christoph
last_name: Weskamp
- first_name: Gregor
full_name: Engels, Gregor
id: '107'
last_name: Engels
citation:
ama: 'Kirchhoff J, Weskamp C, Engels G. Decision Support Ecosystems: Definition and
Platform Architecture. In: Decision Support Systems XII: Decision Support Addressing
Modern Industry, Business, and Societal Needs. Vol 447. Lecture Notes in Business
Information Processing . Springer; 2022. doi:10.1007/978-3-031-06530-9_8'
apa: 'Kirchhoff, J., Weskamp, C., & Engels, G. (2022). Decision Support Ecosystems:
Definition and Platform Architecture. In Decision Support Systems XII: Decision
Support Addressing Modern Industry, Business, and Societal Needs (Vol. 447).
Springer. https://doi.org/10.1007/978-3-031-06530-9_8'
bibtex: '@inbook{Kirchhoff_Weskamp_Engels_2022, series={Lecture Notes in Business
Information Processing }, title={Decision Support Ecosystems: Definition and Platform
Architecture}, volume={447}, DOI={10.1007/978-3-031-06530-9_8},
booktitle={Decision Support Systems XII: Decision Support Addressing Modern Industry,
Business, and Societal Needs}, publisher={Springer}, author={Kirchhoff, Jonas
and Weskamp, Christoph and Engels, Gregor}, year={2022}, collection={Lecture Notes
in Business Information Processing } }'
chicago: 'Kirchhoff, Jonas, Christoph Weskamp, and Gregor Engels. “Decision Support
Ecosystems: Definition and Platform Architecture.” In Decision Support Systems
XII: Decision Support Addressing Modern Industry, Business, and Societal Needs,
Vol. 447. Lecture Notes in Business Information Processing . Springer, 2022. https://doi.org/10.1007/978-3-031-06530-9_8.'
ieee: 'J. Kirchhoff, C. Weskamp, and G. Engels, “Decision Support Ecosystems: Definition
and Platform Architecture,” in Decision Support Systems XII: Decision Support
Addressing Modern Industry, Business, and Societal Needs, vol. 447, Springer,
2022.'
mla: 'Kirchhoff, Jonas, et al. “Decision Support Ecosystems: Definition and Platform
Architecture.” Decision Support Systems XII: Decision Support Addressing Modern
Industry, Business, and Societal Needs, vol. 447, Springer, 2022, doi:10.1007/978-3-031-06530-9_8.'
short: 'J. Kirchhoff, C. Weskamp, G. Engels, in: Decision Support Systems XII: Decision
Support Addressing Modern Industry, Business, and Societal Needs, Springer, 2022.'
conference:
name: 8th International Conference on Decision Support System Technology (ICDSST'22)
date_created: 2022-04-25T11:33:09Z
date_updated: 2022-09-07T08:56:38Z
ddc:
- '000'
department:
- _id: '534'
- _id: '66'
doi: 10.1007/978-3-031-06530-9_8
file:
- access_level: closed
content_type: application/pdf
creator: jonaskir
date_created: 2022-04-25T11:34:18Z
date_updated: 2022-04-25T11:34:18Z
file_id: '30942'
file_name: ICDSST22_5504_Paper.pdf
file_size: 425852
relation: main_file
success: 1
file_date_updated: 2022-04-25T11:34:18Z
has_accepted_license: '1'
intvolume: ' 447'
language:
- iso: eng
publication: 'Decision Support Systems XII: Decision Support Addressing Modern Industry,
Business, and Societal Needs'
publisher: Springer
series_title: 'Lecture Notes in Business Information Processing '
status: public
title: 'Decision Support Ecosystems: Definition and Platform Architecture'
type: book_chapter
user_id: '39928'
volume: 447
year: '2022'
...
---
_id: '33508'
abstract:
- lang: eng
text: In this work, methods will be evaluated to numerically calculate the passive
electrical parameters of planar coils. These parameters can then be used to optimize
inductive applications such as wireless power transmission. The focus here will
be on inductive localization, which uses high-frequency magnetic fields and the
resulting induced voltage to provide localization through the coupling parameter
mutual inductance. To achieve localization with high accuracy and best possible
operation (resonance, signal strength, etc.), the coil parameters need to be well
known. For this reason, some numerical methods for the calculation of these quantities
are presented and validated. In addition, the physical effects are thereby considered
in more detail, allowing the localization procedure to be better optimized compared
to simulative black-box methods. The goal should be a dedicated simulation platform
for planar coils to be able to develop training data for neural networks and to
test and optimize localization algorithms.
author:
- first_name: Sven
full_name: Lange, Sven
id: '38240'
last_name: Lange
- first_name: Christian
full_name: Hedayat, Christian
last_name: Hedayat
- first_name: Harald
full_name: Kuhn, Harald
last_name: Kuhn
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
last_name: Hilleringmann
citation:
ama: 'Lange S, Hedayat C, Kuhn H, Hilleringmann U. Modeling and Characterization
of a 3D Environment for the Design of an Inductively Based Locating Method by
Coil Couplings. In: 2022 Smart Systems Integration (SSI). IEEE; 2022. doi:10.1109/ssi56489.2022.9901416'
apa: Lange, S., Hedayat, C., Kuhn, H., & Hilleringmann, U. (2022). Modeling
and Characterization of a 3D Environment for the Design of an Inductively Based
Locating Method by Coil Couplings. 2022 Smart Systems Integration (SSI).
2022 Smart Systems Integration (SSI), Grenoble, France. https://doi.org/10.1109/ssi56489.2022.9901416
bibtex: '@inproceedings{Lange_Hedayat_Kuhn_Hilleringmann_2022, place={Grenoble,
France}, title={Modeling and Characterization of a 3D Environment for the Design
of an Inductively Based Locating Method by Coil Couplings}, DOI={10.1109/ssi56489.2022.9901416},
booktitle={2022 Smart Systems Integration (SSI)}, publisher={IEEE}, author={Lange,
Sven and Hedayat, Christian and Kuhn, Harald and Hilleringmann, Ulrich}, year={2022}
}'
chicago: 'Lange, Sven, Christian Hedayat, Harald Kuhn, and Ulrich Hilleringmann.
“Modeling and Characterization of a 3D Environment for the Design of an Inductively
Based Locating Method by Coil Couplings.” In 2022 Smart Systems Integration
(SSI). Grenoble, France: IEEE, 2022. https://doi.org/10.1109/ssi56489.2022.9901416.'
ieee: 'S. Lange, C. Hedayat, H. Kuhn, and U. Hilleringmann, “Modeling and Characterization
of a 3D Environment for the Design of an Inductively Based Locating Method by
Coil Couplings,” presented at the 2022 Smart Systems Integration (SSI), Grenoble,
France, 2022, doi: 10.1109/ssi56489.2022.9901416.'
mla: Lange, Sven, et al. “Modeling and Characterization of a 3D Environment for
the Design of an Inductively Based Locating Method by Coil Couplings.” 2022
Smart Systems Integration (SSI), IEEE, 2022, doi:10.1109/ssi56489.2022.9901416.
short: 'S. Lange, C. Hedayat, H. Kuhn, U. Hilleringmann, in: 2022 Smart Systems
Integration (SSI), IEEE, Grenoble, France, 2022.'
conference:
end_date: 2022-04-28
location: Grenoble, France
name: 2022 Smart Systems Integration (SSI)
start_date: 2022-04-27
date_created: 2022-10-04T11:26:11Z
date_updated: 2022-10-04T11:35:11Z
department:
- _id: '59'
- _id: '485'
doi: 10.1109/ssi56489.2022.9901416
keyword:
- Simulation Environment
- Inductive Localization
- Coil Parameters
- Inductive Applications
- Near-Field
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/document/9901416
place: Grenoble, France
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: 2022 Smart Systems Integration (SSI)
publication_identifier:
eisbn:
- 978-1-6654-8849-5
publication_status: published
publisher: IEEE
status: public
title: Modeling and Characterization of a 3D Environment for the Design of an Inductively
Based Locating Method by Coil Couplings
type: conference
user_id: '38240'
year: '2022'
...
---
_id: '33714'
abstract:
- lang: eng
text: AbstractIndustry 4.0 promises many potentials
in production. Examples are a data-driven optimization of production processes
of individual machines, driverless transport systems, and assistance systems.
Nevertheless, companies are still hesitant to invest in Industry 4.0 applications.
Studies show that one of the main reasons for that is the unclear economic benefit.
In this work, we present a systematic approach for the evaluation of Industry 4.0
applications in production. The main goal of the systematic is to create transparency
over the evaluation process of an investment in an Industry 4.0 application in
production. The evaluation of a concrete technical solution in an existing production
system is supported. As a theoretical foundation, a characterization of investments
in Industry 4.0 applications is given. From that, a procedure model is derived.
It puts the activities to be carried out, the tools to be used and results in
a temporal context. The application of the systematic is shown on the basis of
an application example.
author:
- first_name: Robert
full_name: Joppen, Robert
last_name: Joppen
- first_name: Arno
full_name: Kühn, Arno
last_name: Kühn
- first_name: Magdalena
full_name: Förster, Magdalena
last_name: Förster
- first_name: Roman
full_name: Dumitrescu, Roman
id: '16190'
last_name: Dumitrescu
citation:
ama: Joppen R, Kühn A, Förster M, Dumitrescu R. Evaluation of Industry 4.0 Applications
in Production. Journal of the Knowledge Economy. Published online 2022.
doi:10.1007/s13132-022-00959-2
apa: Joppen, R., Kühn, A., Förster, M., & Dumitrescu, R. (2022). Evaluation
of Industry 4.0 Applications in Production. Journal of the Knowledge Economy.
https://doi.org/10.1007/s13132-022-00959-2
bibtex: '@article{Joppen_Kühn_Förster_Dumitrescu_2022, title={Evaluation of Industry
4.0 Applications in Production}, DOI={10.1007/s13132-022-00959-2},
journal={Journal of the Knowledge Economy}, publisher={Springer Science and Business
Media LLC}, author={Joppen, Robert and Kühn, Arno and Förster, Magdalena and Dumitrescu,
Roman}, year={2022} }'
chicago: Joppen, Robert, Arno Kühn, Magdalena Förster, and Roman Dumitrescu. “Evaluation
of Industry 4.0 Applications in Production.” Journal of the Knowledge Economy,
2022. https://doi.org/10.1007/s13132-022-00959-2.
ieee: 'R. Joppen, A. Kühn, M. Förster, and R. Dumitrescu, “Evaluation of Industry
4.0 Applications in Production,” Journal of the Knowledge Economy, 2022,
doi: 10.1007/s13132-022-00959-2.'
mla: Joppen, Robert, et al. “Evaluation of Industry 4.0 Applications in Production.”
Journal of the Knowledge Economy, Springer Science and Business Media LLC,
2022, doi:10.1007/s13132-022-00959-2.
short: R. Joppen, A. Kühn, M. Förster, R. Dumitrescu, Journal of the Knowledge Economy
(2022).
date_created: 2022-10-13T11:50:20Z
date_updated: 2022-10-13T11:53:53Z
department:
- _id: '563'
doi: 10.1007/s13132-022-00959-2
keyword:
- Economics and Econometrics
language:
- iso: eng
publication: Journal of the Knowledge Economy
publication_identifier:
issn:
- 1868-7865
- 1868-7873
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Evaluation of Industry 4.0 Applications in Production
type: journal_article
user_id: '15782'
year: '2022'
...
---
_id: '33713'
abstract:
- lang: eng
text: AbstractThe development of technical systems
requires close cooperation of stakeholders from different disciplines. This collaboration
takes place in workshops. Driven by digitalization and by the current pandemic
such workshops take place primarily online. Suitable collaboration tools and methods
are crucial to success. At the beginning of such workshops, use and damage scenarios
are identified. In this paper, we presented a method and tool for identifying
and modeling use and damage scenarios, which we evaluated in 14 online workshops
with a total of 118 participants over a period of almost 3 years.
author:
- first_name: Sergej
full_name: Japs, Sergej
last_name: Japs
- first_name: Sebastian
full_name: Schmidt, Sebastian
last_name: Schmidt
- first_name: Frank
full_name: Kargl, Frank
last_name: Kargl
- first_name: Lydia
full_name: Kaiser, Lydia
last_name: Kaiser
- first_name: Aschot
full_name: Kharatyan, Aschot
last_name: Kharatyan
- first_name: Roman
full_name: Dumitrescu, Roman
id: '16190'
last_name: Dumitrescu
citation:
ama: Japs S, Schmidt S, Kargl F, Kaiser L, Kharatyan A, Dumitrescu R. Collaborative
Modeling of Use Case & Damage Scenarios in Online Workshops Using a 3D
Environment. Proceedings of the Design Society. 2022;2:1599-1608. doi:10.1017/pds.2022.162
apa: Japs, S., Schmidt, S., Kargl, F., Kaiser, L., Kharatyan, A., & Dumitrescu,
R. (2022). Collaborative Modeling of Use Case & Damage Scenarios in Online
Workshops Using a 3D Environment. Proceedings of the Design Society, 2,
1599–1608. https://doi.org/10.1017/pds.2022.162
bibtex: '@article{Japs_Schmidt_Kargl_Kaiser_Kharatyan_Dumitrescu_2022, title={Collaborative
Modeling of Use Case & Damage Scenarios in Online Workshops Using a 3D
Environment}, volume={2}, DOI={10.1017/pds.2022.162},
journal={Proceedings of the Design Society}, publisher={Cambridge University Press
(CUP)}, author={Japs, Sergej and Schmidt, Sebastian and Kargl, Frank and Kaiser,
Lydia and Kharatyan, Aschot and Dumitrescu, Roman}, year={2022}, pages={1599–1608}
}'
chicago: 'Japs, Sergej, Sebastian Schmidt, Frank Kargl, Lydia Kaiser, Aschot Kharatyan,
and Roman Dumitrescu. “Collaborative Modeling of Use Case & Damage Scenarios
in Online Workshops Using a 3D Environment.” Proceedings of the Design Society
2 (2022): 1599–1608. https://doi.org/10.1017/pds.2022.162.'
ieee: 'S. Japs, S. Schmidt, F. Kargl, L. Kaiser, A. Kharatyan, and R. Dumitrescu,
“Collaborative Modeling of Use Case & Damage Scenarios in Online Workshops
Using a 3D Environment,” Proceedings of the Design Society, vol. 2, pp.
1599–1608, 2022, doi: 10.1017/pds.2022.162.'
mla: Japs, Sergej, et al. “Collaborative Modeling of Use Case & Damage Scenarios
in Online Workshops Using a 3D Environment.” Proceedings of the Design Society,
vol. 2, Cambridge University Press (CUP), 2022, pp. 1599–608, doi:10.1017/pds.2022.162.
short: S. Japs, S. Schmidt, F. Kargl, L. Kaiser, A. Kharatyan, R. Dumitrescu, Proceedings
of the Design Society 2 (2022) 1599–1608.
date_created: 2022-10-13T11:25:39Z
date_updated: 2022-10-13T11:47:40Z
department:
- _id: '563'
doi: 10.1017/pds.2022.162
intvolume: ' 2'
language:
- iso: eng
page: 1599-1608
publication: Proceedings of the Design Society
publication_identifier:
issn:
- 2732-527X
publication_status: published
publisher: Cambridge University Press (CUP)
status: public
title: Collaborative Modeling of Use Case & Damage Scenarios in Online Workshops
Using a 3D Environment
type: journal_article
user_id: '15782'
volume: 2
year: '2022'
...
---
_id: '33728'
author:
- first_name: C. R.
full_name: Bielak, C. R.
last_name: Bielak
- first_name: M.
full_name: Böhnke, M.
last_name: Böhnke
- first_name: M.
full_name: Bobbert, M.
last_name: Bobbert
- first_name: G.
full_name: Meschut, G.
last_name: Meschut
citation:
ama: 'Bielak CR, Böhnke M, Bobbert M, Meschut G. Development of a Numerical 3D Model
for Analyzing Clinched Joints in Versatile Process Chains. In: The Minerals,
Metals & Materials Series. Springer International Publishing; 2022.
doi:10.1007/978-3-031-06212-4_15'
apa: Bielak, C. R., Böhnke, M., Bobbert, M., & Meschut, G. (2022). Development
of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains.
In The Minerals, Metals & Materials Series. Springer International
Publishing. https://doi.org/10.1007/978-3-031-06212-4_15
bibtex: '@inbook{Bielak_Böhnke_Bobbert_Meschut_2022, place={Cham}, title={Development
of a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains},
DOI={10.1007/978-3-031-06212-4_15},
booktitle={The Minerals, Metals & Materials Series}, publisher={Springer
International Publishing}, author={Bielak, C. R. and Böhnke, M. and Bobbert, M.
and Meschut, G.}, year={2022} }'
chicago: 'Bielak, C. R., M. Böhnke, M. Bobbert, and G. Meschut. “Development of
a Numerical 3D Model for Analyzing Clinched Joints in Versatile Process Chains.”
In The Minerals, Metals & Materials Series. Cham: Springer International
Publishing, 2022. https://doi.org/10.1007/978-3-031-06212-4_15.'
ieee: 'C. R. Bielak, M. Böhnke, M. Bobbert, and G. Meschut, “Development of a Numerical
3D Model for Analyzing Clinched Joints in Versatile Process Chains,” in The
Minerals, Metals & Materials Series, Cham: Springer International
Publishing, 2022.'
mla: Bielak, C. R., et al. “Development of a Numerical 3D Model for Analyzing Clinched
Joints in Versatile Process Chains.” The Minerals, Metals & Materials
Series, Springer International Publishing, 2022, doi:10.1007/978-3-031-06212-4_15.
short: 'C.R. Bielak, M. Böhnke, M. Bobbert, G. Meschut, in: The Minerals, Metals
& Materials Series, Springer International Publishing, Cham, 2022.'
date_created: 2022-10-14T14:24:39Z
date_updated: 2022-10-14T14:34:17Z
department:
- _id: '157'
doi: 10.1007/978-3-031-06212-4_15
place: Cham
publication: The Minerals, Metals & Materials Series
publication_identifier:
isbn:
- '9783031062117'
- '9783031062124'
issn:
- 2367-1181
- 2367-1696
publication_status: published
publisher: Springer International Publishing
status: public
title: Development of a Numerical 3D Model for Analyzing Clinched Joints in Versatile
Process Chains
type: book_chapter
user_id: '34782'
year: '2022'
...
---
_id: '20731'
abstract:
- lang: eng
text: We present a novel algorithm that allows us to gain detailed insight into
the effects of sparsity in linear and nonlinear optimization, which is of great
importance in many scientific areas such as image and signal processing, medical
imaging, compressed sensing, and machine learning (e.g., for the training of neural
networks). Sparsity is an important feature to ensure robustness against noisy
data, but also to find models that are interpretable and easy to analyze due to
the small number of relevant terms. It is common practice to enforce sparsity
by adding the ℓ1-norm as a weighted penalty term. In order to gain a better understanding
and to allow for an informed model selection, we directly solve the corresponding
multiobjective optimization problem (MOP) that arises when we minimize the main
objective and the ℓ1-norm simultaneously. As this MOP is in general non-convex
for nonlinear objectives, the weighting method will fail to provide all optimal
compromises. To avoid this issue, we present a continuation method which is specifically
tailored to MOPs with two objective functions one of which is the ℓ1-norm. Our
method can be seen as a generalization of well-known homotopy methods for linear
regression problems to the nonlinear case. Several numerical examples - including
neural network training - demonstrate our theoretical findings and the additional
insight that can be gained by this multiobjective approach.
article_type: original
author:
- first_name: Katharina
full_name: Bieker, Katharina
id: '32829'
last_name: Bieker
- first_name: Bennet
full_name: Gebken, Bennet
id: '32643'
last_name: Gebken
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: 0000-0002-3389-793X
citation:
ama: Bieker K, Gebken B, Peitz S. On the Treatment of Optimization Problems with
L1 Penalty Terms via Multiobjective Continuation. IEEE Transactions on Pattern
Analysis and Machine Intelligence. 2022;44(11):7797-7808. doi:10.1109/TPAMI.2021.3114962
apa: Bieker, K., Gebken, B., & Peitz, S. (2022). On the Treatment of Optimization
Problems with L1 Penalty Terms via Multiobjective Continuation. IEEE Transactions
on Pattern Analysis and Machine Intelligence, 44(11), 7797–7808. https://doi.org/10.1109/TPAMI.2021.3114962
bibtex: '@article{Bieker_Gebken_Peitz_2022, title={On the Treatment of Optimization
Problems with L1 Penalty Terms via Multiobjective Continuation}, volume={44},
DOI={10.1109/TPAMI.2021.3114962},
number={11}, journal={IEEE Transactions on Pattern Analysis and Machine Intelligence},
publisher={IEEE}, author={Bieker, Katharina and Gebken, Bennet and Peitz, Sebastian},
year={2022}, pages={7797–7808} }'
chicago: 'Bieker, Katharina, Bennet Gebken, and Sebastian Peitz. “On the Treatment
of Optimization Problems with L1 Penalty Terms via Multiobjective Continuation.”
IEEE Transactions on Pattern Analysis and Machine Intelligence 44, no.
11 (2022): 7797–7808. https://doi.org/10.1109/TPAMI.2021.3114962.'
ieee: 'K. Bieker, B. Gebken, and S. Peitz, “On the Treatment of Optimization Problems
with L1 Penalty Terms via Multiobjective Continuation,” IEEE Transactions on
Pattern Analysis and Machine Intelligence, vol. 44, no. 11, pp. 7797–7808,
2022, doi: 10.1109/TPAMI.2021.3114962.'
mla: Bieker, Katharina, et al. “On the Treatment of Optimization Problems with L1
Penalty Terms via Multiobjective Continuation.” IEEE Transactions on Pattern
Analysis and Machine Intelligence, vol. 44, no. 11, IEEE, 2022, pp. 7797–808,
doi:10.1109/TPAMI.2021.3114962.
short: K. Bieker, B. Gebken, S. Peitz, IEEE Transactions on Pattern Analysis and
Machine Intelligence 44 (2022) 7797–7808.
date_created: 2020-12-15T07:46:36Z
date_updated: 2022-10-21T12:27:16Z
ddc:
- '510'
department:
- _id: '101'
- _id: '530'
- _id: '655'
doi: 10.1109/TPAMI.2021.3114962
file:
- access_level: closed
content_type: application/pdf
creator: speitz
date_created: 2021-09-25T11:59:15Z
date_updated: 2021-09-25T11:59:15Z
file_id: '25040'
file_name: On_the_Treatment_of_Optimization_Problems_with_L1_Penalty_Terms_via_Multiobjective_Continuation.pdf
file_size: 7990831
relation: main_file
success: 1
file_date_updated: 2021-09-25T11:59:15Z
has_accepted_license: '1'
intvolume: ' 44'
issue: '11'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9547772
oa: '1'
page: 7797-7808
publication: IEEE Transactions on Pattern Analysis and Machine Intelligence
publication_status: epub_ahead
publisher: IEEE
status: public
title: On the Treatment of Optimization Problems with L1 Penalty Terms via Multiobjective
Continuation
type: journal_article
user_id: '47427'
volume: 44
year: '2022'
...
---
_id: '33967'
author:
- first_name: Marcos
full_name: Aguiliera, Marcos
last_name: Aguiliera
- first_name: Andréa W.
full_name: Richa, Andréa W.
last_name: Richa
- first_name: Alexander A.
full_name: Schwarzmann, Alexander A.
last_name: Schwarzmann
- first_name: Alessandro
full_name: Panconesi, Alessandro
last_name: Panconesi
- first_name: Christian
full_name: Scheideler, Christian
id: '20792'
last_name: Scheideler
- first_name: Philipp
full_name: Woelfel, Philipp
last_name: Woelfel
citation:
ama: 'Aguiliera M, Richa AW, Schwarzmann AA, Panconesi A, Scheideler C, Woelfel
P. 2022 Edsger W. Dijkstra Prize in Distributed Computing. In: Milani A, Woelfel
P, eds. PODC ’22: ACM Symposium on Principles of Distributed Computing, Salerno,
Italy, July 25 - 29, 2022. ACM; 2022:1. doi:10.1145/3519270.3538411'
apa: 'Aguiliera, M., Richa, A. W., Schwarzmann, A. A., Panconesi, A., Scheideler,
C., & Woelfel, P. (2022). 2022 Edsger W. Dijkstra Prize in Distributed Computing.
In A. Milani & P. Woelfel (Eds.), PODC ’22: ACM Symposium on Principles
of Distributed Computing, Salerno, Italy, July 25 - 29, 2022 (p. 1). ACM.
https://doi.org/10.1145/3519270.3538411'
bibtex: '@inproceedings{Aguiliera_Richa_Schwarzmann_Panconesi_Scheideler_Woelfel_2022,
title={2022 Edsger W. Dijkstra Prize in Distributed Computing}, DOI={10.1145/3519270.3538411},
booktitle={PODC ’22: ACM Symposium on Principles of Distributed Computing, Salerno,
Italy, July 25 - 29, 2022}, publisher={ACM}, author={Aguiliera, Marcos and Richa,
Andréa W. and Schwarzmann, Alexander A. and Panconesi, Alessandro and Scheideler,
Christian and Woelfel, Philipp}, editor={Milani, Alessia and Woelfel, Philipp},
year={2022}, pages={1} }'
chicago: 'Aguiliera, Marcos, Andréa W. Richa, Alexander A. Schwarzmann, Alessandro
Panconesi, Christian Scheideler, and Philipp Woelfel. “2022 Edsger W. Dijkstra
Prize in Distributed Computing.” In PODC ’22: ACM Symposium on Principles of
Distributed Computing, Salerno, Italy, July 25 - 29, 2022, edited by Alessia
Milani and Philipp Woelfel, 1. ACM, 2022. https://doi.org/10.1145/3519270.3538411.'
ieee: 'M. Aguiliera, A. W. Richa, A. A. Schwarzmann, A. Panconesi, C. Scheideler,
and P. Woelfel, “2022 Edsger W. Dijkstra Prize in Distributed Computing,” in PODC
’22: ACM Symposium on Principles of Distributed Computing, Salerno, Italy, July
25 - 29, 2022, 2022, p. 1, doi: 10.1145/3519270.3538411.'
mla: 'Aguiliera, Marcos, et al. “2022 Edsger W. Dijkstra Prize in Distributed Computing.”
PODC ’22: ACM Symposium on Principles of Distributed Computing, Salerno, Italy,
July 25 - 29, 2022, edited by Alessia Milani and Philipp Woelfel, ACM, 2022,
p. 1, doi:10.1145/3519270.3538411.'
short: 'M. Aguiliera, A.W. Richa, A.A. Schwarzmann, A. Panconesi, C. Scheideler,
P. Woelfel, in: A. Milani, P. Woelfel (Eds.), PODC ’22: ACM Symposium on Principles
of Distributed Computing, Salerno, Italy, July 25 - 29, 2022, ACM, 2022, p. 1.'
date_created: 2022-11-02T08:53:37Z
date_updated: 2022-11-02T08:56:16Z
department:
- _id: '79'
doi: 10.1145/3519270.3538411
editor:
- first_name: Alessia
full_name: Milani, Alessia
last_name: Milani
- first_name: Philipp
full_name: Woelfel, Philipp
last_name: Woelfel
language:
- iso: eng
page: '1'
project:
- _id: '1'
name: 'SFB 901: SFB 901'
- _id: '2'
name: 'SFB 901 - A: SFB 901 - Project Area A'
- _id: '5'
name: 'SFB 901 - A1: SFB 901 - Subproject A1'
publication: 'PODC ’22: ACM Symposium on Principles of Distributed Computing, Salerno,
Italy, July 25 - 29, 2022'
publisher: ACM
status: public
title: 2022 Edsger W. Dijkstra Prize in Distributed Computing
type: conference
user_id: '15504'
year: '2022'
...
---
_id: '34256'
abstract:
- lang: eng
text: 'The 3D shear deformation and failure behaviour of a glass fibre reinforced
polypropylene in a shear strain rate range of γ˙=2.2×10−4 to 3.4 1s is investigated.
An Iosipescu testing setup on a servo-hydraulic high speed testing unit is used
to experimentally characterise the in-plane and out-of-plane behaviour utilising
three specimen configurations (12-, 13- and 31-direction). The experimental procedure
as well as the testing results are presented and discussed. The measured shear
stress–shear strain relations indicate a highly nonlinear behaviour and a distinct
rate dependency. Two methods are investigated to derive according material characteristics:
a classical engineering approach based on moduli and strengths and a data driven
approach based on the curve progression. In all cases a Johnson–Cook based formulation
is used to describe rate dependency. The analysis methodologies as well as the
derived model parameters are described and discussed in detail. It is shown that
a phenomenologically enhanced regression can be used to obtain material characteristics
for a generalising constitutive model based on the data driven approach.'
article_number: '318'
author:
- first_name: Johannes
full_name: Gerritzen, Johannes
last_name: Gerritzen
- first_name: Andreas
full_name: Hornig, Andreas
last_name: Hornig
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: 'Gerritzen J, Hornig A, Gröger B, Gude M. A Data Driven Modelling Approach
for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
Parameters. Journal of Composites Science. 2022;6(10). doi:10.3390/jcs6100318'
apa: 'Gerritzen, J., Hornig, A., Gröger, B., & Gude, M. (2022). A Data Driven
Modelling Approach for the Strain Rate Dependent 3D Shear Deformation and Failure
of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation and
Deriving Modelling Parameters. Journal of Composites Science, 6(10),
Article 318. https://doi.org/10.3390/jcs6100318'
bibtex: '@article{Gerritzen_Hornig_Gröger_Gude_2022, title={A Data Driven Modelling
Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
Parameters}, volume={6}, DOI={10.3390/jcs6100318},
number={10318}, journal={Journal of Composites Science}, publisher={MDPI AG},
author={Gerritzen, Johannes and Hornig, Andreas and Gröger, Benjamin and Gude,
Maik}, year={2022} }'
chicago: 'Gerritzen, Johannes, Andreas Hornig, Benjamin Gröger, and Maik Gude. “A
Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation
and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation
and Deriving Modelling Parameters.” Journal of Composites Science 6, no.
10 (2022). https://doi.org/10.3390/jcs6100318.'
ieee: 'J. Gerritzen, A. Hornig, B. Gröger, and M. Gude, “A Data Driven Modelling
Approach for the Strain Rate Dependent 3D Shear Deformation and Failure of Thermoplastic
Fibre Reinforced Composites: Experimental Characterisation and Deriving Modelling
Parameters,” Journal of Composites Science, vol. 6, no. 10, Art. no. 318,
2022, doi: 10.3390/jcs6100318.'
mla: 'Gerritzen, Johannes, et al. “A Data Driven Modelling Approach for the Strain
Rate Dependent 3D Shear Deformation and Failure of Thermoplastic Fibre Reinforced
Composites: Experimental Characterisation and Deriving Modelling Parameters.”
Journal of Composites Science, vol. 6, no. 10, 318, MDPI AG, 2022, doi:10.3390/jcs6100318.'
short: J. Gerritzen, A. Hornig, B. Gröger, M. Gude, Journal of Composites Science
6 (2022).
date_created: 2022-12-06T20:42:38Z
date_updated: 2023-01-02T11:06:15Z
department:
- _id: '630'
doi: 10.3390/jcs6100318
intvolume: ' 6'
issue: '10'
keyword:
- Engineering (miscellaneous)
- Ceramics and Composites
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2504-477X/6/10/318
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
name: 'TRR 285 – A03: TRR 285 - Subproject A03'
publication: Journal of Composites Science
publication_identifier:
issn:
- 2504-477X
publication_status: published
publisher: MDPI AG
status: public
title: 'A Data Driven Modelling Approach for the Strain Rate Dependent 3D Shear Deformation
and Failure of Thermoplastic Fibre Reinforced Composites: Experimental Characterisation
and Deriving Modelling Parameters'
type: journal_article
user_id: '14931'
volume: 6
year: '2022'
...
---
_id: '34251'
abstract:
- lang: eng
text: Joining by forming operations presents powerful and complex joining techniques.
Clinching is a well-known joining process for use in sheet metalworking. Currently,
clinched joints are focusing on mechanically enhanced connections. Additionally,
the demand for integrating electrical requirements to transmit electrical currents
will be increased in the future. This integration is particularly important, for
instance, in the e-mobility sector. It enables connecting battery cells with electrical
joints of aluminum and copper. Systematic use of the process-specific advantages
of this joining method opens up the possibility to find and create electrically
optimized connections. The optimization for the transmission of electrical currents
will be demonstrated for clinched joints by adapting the tool geometry and the
clinched joint design. Based on a comparison of the electrical joint resistance,
the limit use temperature is defined for the joining materials used based on the
microstructural condition and the aging condition due to artificial aging. As
a result of the investigations carried out, reliable current transmission at a
constant conductor temperature of up to 120 °C can be achieved for clinched copper–copper
joints. In the case of pure aluminum joints and mixed joints of aluminum and copper,
long-term stable current transmission can be ensured up to a conductor temperature
of 100 °C.
article_number: '1651'
author:
- first_name: Jan
full_name: Kalich, Jan
last_name: Kalich
- first_name: Marcus
full_name: Matzke, Marcus
last_name: Matzke
- first_name: Wolfgang
full_name: Pfeiffer, Wolfgang
last_name: Pfeiffer
- first_name: Stephan
full_name: Schlegel, Stephan
last_name: Schlegel
- first_name: Ludwig
full_name: Kornhuber, Ludwig
last_name: Kornhuber
- first_name: Uwe
full_name: Füssel, Uwe
last_name: Füssel
citation:
ama: Kalich J, Matzke M, Pfeiffer W, Schlegel S, Kornhuber L, Füssel U. Long-Term
Behavior of Clinched Electrical Contacts. Metals. 2022;12(10). doi:10.3390/met12101651
apa: Kalich, J., Matzke, M., Pfeiffer, W., Schlegel, S., Kornhuber, L., & Füssel,
U. (2022). Long-Term Behavior of Clinched Electrical Contacts. Metals,
12(10), Article 1651. https://doi.org/10.3390/met12101651
bibtex: '@article{Kalich_Matzke_Pfeiffer_Schlegel_Kornhuber_Füssel_2022, title={Long-Term
Behavior of Clinched Electrical Contacts}, volume={12}, DOI={10.3390/met12101651},
number={101651}, journal={Metals}, publisher={MDPI AG}, author={Kalich, Jan and
Matzke, Marcus and Pfeiffer, Wolfgang and Schlegel, Stephan and Kornhuber, Ludwig
and Füssel, Uwe}, year={2022} }'
chicago: Kalich, Jan, Marcus Matzke, Wolfgang Pfeiffer, Stephan Schlegel, Ludwig
Kornhuber, and Uwe Füssel. “Long-Term Behavior of Clinched Electrical Contacts.”
Metals 12, no. 10 (2022). https://doi.org/10.3390/met12101651.
ieee: 'J. Kalich, M. Matzke, W. Pfeiffer, S. Schlegel, L. Kornhuber, and U. Füssel,
“Long-Term Behavior of Clinched Electrical Contacts,” Metals, vol. 12,
no. 10, Art. no. 1651, 2022, doi: 10.3390/met12101651.'
mla: Kalich, Jan, et al. “Long-Term Behavior of Clinched Electrical Contacts.” Metals,
vol. 12, no. 10, 1651, MDPI AG, 2022, doi:10.3390/met12101651.
short: J. Kalich, M. Matzke, W. Pfeiffer, S. Schlegel, L. Kornhuber, U. Füssel,
Metals 12 (2022).
date_created: 2022-12-06T19:20:46Z
date_updated: 2023-01-02T11:06:35Z
department:
- _id: '630'
doi: 10.3390/met12101651
intvolume: ' 12'
issue: '10'
keyword:
- General Materials Science
- Metals and Alloys
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2075-4701/12/10/1651
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
publication: Metals
publication_identifier:
issn:
- 2075-4701
publication_status: published
publisher: MDPI AG
status: public
title: Long-Term Behavior of Clinched Electrical Contacts
type: journal_article
user_id: '14931'
volume: 12
year: '2022'
...
---
_id: '34254'
abstract:
- lang: eng
text: A virtual test setup for investigating single fibres in a transverse shear
flow based on a parallel-plate rheometer is presented. The investigations are
carried out to verify a numerical representation of the fluid–structure interaction
(FSI), where Arbitrary Lagrangian–Eulerian (ALE) and computational fluid dynamics
(CFD) methods are used and evaluated. Both are suitable to simulate flexible solid
structures in a transverse shear flow. Comparative investigations with different
model setups and increasing complexity are presented. It is shown, that the CFD
method with an interface-based coupling approach is not capable of handling small
fibre diameters in comparison to large fluid domains due to mesh dependencies
at the interface definitions. The ALE method is more suited for this task since
fibres are embedded without any mesh restrictions. Element types beam, solid,
and discrete are considered for fibre modelling. It is shown that the beam formulation
for ALE and 3D solid elements for the CFD method are the preferred options.
article_number: '7241'
author:
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: Jingjing
full_name: Wang, Jingjing
last_name: Wang
- first_name: Tim
full_name: Bätzel, Tim
last_name: Bätzel
- first_name: Andreas
full_name: Hornig, Andreas
last_name: Hornig
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
citation:
ama: Gröger B, Wang J, Bätzel T, Hornig A, Gude M. Modelling and Simulation Strategies
for Fluid–Structure-Interactions of Highly Viscous Thermoplastic Melt and Single
Fibres—A Numerical Study. Materials. 2022;15(20). doi:10.3390/ma15207241
apa: Gröger, B., Wang, J., Bätzel, T., Hornig, A., & Gude, M. (2022). Modelling
and Simulation Strategies for Fluid–Structure-Interactions of Highly Viscous Thermoplastic
Melt and Single Fibres—A Numerical Study. Materials, 15(20), Article
7241. https://doi.org/10.3390/ma15207241
bibtex: '@article{Gröger_Wang_Bätzel_Hornig_Gude_2022, title={Modelling and Simulation
Strategies for Fluid–Structure-Interactions of Highly Viscous Thermoplastic Melt
and Single Fibres—A Numerical Study}, volume={15}, DOI={10.3390/ma15207241},
number={207241}, journal={Materials}, publisher={MDPI AG}, author={Gröger, Benjamin
and Wang, Jingjing and Bätzel, Tim and Hornig, Andreas and Gude, Maik}, year={2022}
}'
chicago: Gröger, Benjamin, Jingjing Wang, Tim Bätzel, Andreas Hornig, and Maik Gude.
“Modelling and Simulation Strategies for Fluid–Structure-Interactions of Highly
Viscous Thermoplastic Melt and Single Fibres—A Numerical Study.” Materials
15, no. 20 (2022). https://doi.org/10.3390/ma15207241.
ieee: 'B. Gröger, J. Wang, T. Bätzel, A. Hornig, and M. Gude, “Modelling and Simulation
Strategies for Fluid–Structure-Interactions of Highly Viscous Thermoplastic Melt
and Single Fibres—A Numerical Study,” Materials, vol. 15, no. 20, Art.
no. 7241, 2022, doi: 10.3390/ma15207241.'
mla: Gröger, Benjamin, et al. “Modelling and Simulation Strategies for Fluid–Structure-Interactions
of Highly Viscous Thermoplastic Melt and Single Fibres—A Numerical Study.” Materials,
vol. 15, no. 20, 7241, MDPI AG, 2022, doi:10.3390/ma15207241.
short: B. Gröger, J. Wang, T. Bätzel, A. Hornig, M. Gude, Materials 15 (2022).
date_created: 2022-12-06T20:33:11Z
date_updated: 2023-01-02T11:06:58Z
department:
- _id: '630'
doi: 10.3390/ma15207241
intvolume: ' 15'
issue: '20'
keyword:
- General Materials Science
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/1996-1944/15/20/7241
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
name: 'TRR 285 – A03: TRR 285 - Subproject A03'
publication: Materials
publication_identifier:
issn:
- 1996-1944
publication_status: published
publisher: MDPI AG
status: public
title: Modelling and Simulation Strategies for Fluid–Structure-Interactions of Highly
Viscous Thermoplastic Melt and Single Fibres—A Numerical Study
type: journal_article
user_id: '14931'
volume: 15
year: '2022'
...
---
_id: '34414'
abstract:
- lang: eng
text: Given a steadily increasing demand on multi-material lightweight designs,
fast and cost-efficient production technologies, such as the mechanical joining
process clinching, are becoming more and more relevant for series production.
Since the application of such joining techniques often base on the ability to
reach similar or even better joint loading capacities compared to established
joining processes (e.g., spot welding), few contributions investigated the systematic
improvement of clinch joint characteristics. In this regard, the use of data-driven
methods in combination with optimization algorithms showed already high potentials
for the analysis of individual joints and the definition of optimal tool configurations.
However, the often missing consideration of uncertainties, such as varying material
properties, and the related calculation of their impact on clinch joint properties
can lead to poor estimation results and thus to a decreased reliability of the
entire joint connection. This can cause major challenges, especially for the design
and dimensioning of safety-relevant components, such as in car bodies. Motivated
by this, the presented contribution introduces a novel method for the robust estimation
of clinch joint characteristics including uncertainties of varying and versatile
process chains in mechanical joining. Therefore, the utilization of Gaussian process
regression models is demonstrated and evaluated regarding the ability to achieve
sufficient prediction qualities.
author:
- first_name: Christoph
full_name: Zirngibl, Christoph
last_name: Zirngibl
- first_name: Benjamin
full_name: Schleich, Benjamin
last_name: Schleich
- first_name: Sandro
full_name: Wartzack, Sandro
last_name: Wartzack
citation:
ama: Zirngibl C, Schleich B, Wartzack S. Robust estimation of clinch joint characteristics
based on data-driven methods. The International Journal of Advanced Manufacturing
Technology. Published online 2022. doi:10.1007/s00170-022-10441-7
apa: Zirngibl, C., Schleich, B., & Wartzack, S. (2022). Robust estimation of
clinch joint characteristics based on data-driven methods. The International
Journal of Advanced Manufacturing Technology. https://doi.org/10.1007/s00170-022-10441-7
bibtex: '@article{Zirngibl_Schleich_Wartzack_2022, title={Robust estimation of clinch
joint characteristics based on data-driven methods}, DOI={10.1007/s00170-022-10441-7},
journal={The International Journal of Advanced Manufacturing Technology}, publisher={Springer
Science and Business Media LLC}, author={Zirngibl, Christoph and Schleich, Benjamin
and Wartzack, Sandro}, year={2022} }'
chicago: Zirngibl, Christoph, Benjamin Schleich, and Sandro Wartzack. “Robust Estimation
of Clinch Joint Characteristics Based on Data-Driven Methods.” The International
Journal of Advanced Manufacturing Technology, 2022. https://doi.org/10.1007/s00170-022-10441-7.
ieee: 'C. Zirngibl, B. Schleich, and S. Wartzack, “Robust estimation of clinch joint
characteristics based on data-driven methods,” The International Journal of
Advanced Manufacturing Technology, 2022, doi: 10.1007/s00170-022-10441-7.'
mla: Zirngibl, Christoph, et al. “Robust Estimation of Clinch Joint Characteristics
Based on Data-Driven Methods.” The International Journal of Advanced Manufacturing
Technology, Springer Science and Business Media LLC, 2022, doi:10.1007/s00170-022-10441-7.
short: C. Zirngibl, B. Schleich, S. Wartzack, The International Journal of Advanced
Manufacturing Technology (2022).
date_created: 2022-12-14T12:24:29Z
date_updated: 2023-01-02T11:14:26Z
department:
- _id: '630'
doi: 10.1007/s00170-022-10441-7
keyword:
- Industrial and Manufacturing Engineering
- Computer Science Applications
- Mechanical Engineering
- Software
- Control and Systems Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/article/10.1007/s00170-022-10441-7
oa: '1'
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '144'
name: 'TRR 285 – B05: TRR 285 - Subproject B05'
publication: The International Journal of Advanced Manufacturing Technology
publication_identifier:
issn:
- 0268-3768
- 1433-3015
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Robust estimation of clinch joint characteristics based on data-driven methods
type: journal_article
user_id: '14931'
year: '2022'
...
---
_id: '33287'
author:
- first_name: Elmar
full_name: Moritzer, Elmar
id: '20531'
last_name: Moritzer
- first_name: Christian
full_name: Held, Christian
id: '40647'
last_name: Held
- first_name: Johannes
full_name: Hillemeyer, Johannes
id: '27285'
last_name: Hillemeyer
citation:
ama: Moritzer E, Held C, Hillemeyer J. Dimensionierung und Optimierung von im FDM-Verfahren
3D-gedruckten Direktverschraubungen aus ABS. Joining Plastic. 2022:84-90.
apa: Moritzer, E., Held, C., & Hillemeyer, J. (2022). Dimensionierung und Optimierung
von im FDM-Verfahren 3D-gedruckten Direktverschraubungen aus ABS. Joining Plastic,
84–90.
bibtex: '@article{Moritzer_Held_Hillemeyer_2022, title={Dimensionierung und Optimierung
von im FDM-Verfahren 3D-gedruckten Direktverschraubungen aus ABS}, journal={Joining
Plastic}, author={Moritzer, Elmar and Held, Christian and Hillemeyer, Johannes},
year={2022}, pages={84–90} }'
chicago: Moritzer, Elmar, Christian Held, and Johannes Hillemeyer. “Dimensionierung
Und Optimierung von Im FDM-Verfahren 3D-Gedruckten Direktverschraubungen Aus ABS.”
Joining Plastic, 2022.
ieee: E. Moritzer, C. Held, and J. Hillemeyer, “Dimensionierung und Optimierung
von im FDM-Verfahren 3D-gedruckten Direktverschraubungen aus ABS,” Joining
Plastic, pp. 84–90, 2022.
mla: Moritzer, Elmar, et al. “Dimensionierung Und Optimierung von Im FDM-Verfahren
3D-Gedruckten Direktverschraubungen Aus ABS.” Joining Plastic, 2022, pp.
84–90.
short: E. Moritzer, C. Held, J. Hillemeyer, Joining Plastic (2022) 84–90.
date_created: 2022-09-08T08:21:36Z
date_updated: 2023-01-03T12:34:34Z
department:
- _id: '9'
- _id: '367'
- _id: '321'
language:
- iso: eng
page: 84-90
publication: Joining Plastic
publication_date: '2022'
publication_identifier:
issn:
- 1864-3450
status: public
title: Dimensionierung und Optimierung von im FDM-Verfahren 3D-gedruckten Direktverschraubungen
aus ABS
type: newspaper_article
user_id: '44116'
year: '2022'
...
---
_id: '35308'
abstract:
- lang: eng
text: IntroductionIn 2012, the estimated
global prevalence of pre-diabetes was 280 million, and the prevalence is expected
to rise to 400 million by 2030. Oat-based foods are a good source of beta-glucans,
which have been shown to lower postprandial blood glucose. Studies to evaluate
the effectiveness of the long-term intake of beta-glucan-enriched bread as part
of a habitual diet among individuals with pre-diabetes are needed. Therefore,
we designed a multicentre intervention study in adults with pre-diabetes to investigate
the effects of consumption of an oat-derived beta-glucan-enriched bread as part
of a normal diet on glycated haemoglobin (HbA1c) in comparison to consumption
of whole-grain wheat bread.Methods and
analysisThe CarbHealth trial is a multicentre double-blind
randomised controlled 16-week dietary intervention trial in participants 40–70
years of age with a body mass index of ≥27 kg/m2 and HbA1c
of 35–50 mmol/mol. The study is conducted at four universities located in Norway,
Sweden and Germany and uses intervention breads specifically designed for the
trial by Nofima AS. The aim is to recruit 250 participants. The primary outcome
is the difference in HbA1c between the intervention and the control groups. The
main analysis will include intervention group, study centre and baseline HbA1c
as independent variables in an analysis of covariance model.Ethics
and disseminationThe study protocol was approved by respective
ethical authorities in participating countries. The results of the study will
be communicated through publication in international scientific journals and presentations
at (inter)national conferences.Trial
registration numberNCT04994327.
article_number: e062066
author:
- first_name: Therese
full_name: Hjorth, Therese
last_name: Hjorth
- first_name: Alena
full_name: Schadow, Alena
last_name: Schadow
- first_name: Ingrid
full_name: Revheim, Ingrid
last_name: Revheim
- first_name: Ulrike
full_name: Spielau, Ulrike
last_name: Spielau
- first_name: Lise M
full_name: Thomassen, Lise M
last_name: Thomassen
- first_name: Klara
full_name: Meyer, Klara
last_name: Meyer
- first_name: Katja
full_name: Piotrowski, Katja
last_name: Piotrowski
- first_name: Hanne
full_name: Rosendahl-Riise, Hanne
last_name: Rosendahl-Riise
- first_name: Anne
full_name: Rieder, Anne
last_name: Rieder
- first_name: Paula
full_name: Varela, Paula
last_name: Varela
- first_name: Vegard
full_name: Lysne, Vegard
last_name: Lysne
- first_name: Simon
full_name: Ballance, Simon
last_name: Ballance
- first_name: Antje
full_name: Koerner, Antje
last_name: Koerner
- first_name: Rikard
full_name: Landberg, Rikard
last_name: Landberg
- first_name: Anette
full_name: Buyken, Anette
id: '65985'
last_name: Buyken
- first_name: Jutta
full_name: Dierkes, Jutta
last_name: Dierkes
citation:
ama: 'Hjorth T, Schadow A, Revheim I, et al. Sixteen-week multicentre randomised
controlled trial to study the effect of the consumption of an oat beta-glucan-enriched
bread versus a whole-grain wheat bread on glycaemic control among persons with
pre-diabetes: a study protocol of the CarbHealth study. BMJ Open. 2022;12(8).
doi:10.1136/bmjopen-2022-062066'
apa: 'Hjorth, T., Schadow, A., Revheim, I., Spielau, U., Thomassen, L. M., Meyer,
K., Piotrowski, K., Rosendahl-Riise, H., Rieder, A., Varela, P., Lysne, V., Ballance,
S., Koerner, A., Landberg, R., Buyken, A., & Dierkes, J. (2022). Sixteen-week
multicentre randomised controlled trial to study the effect of the consumption
of an oat beta-glucan-enriched bread versus a whole-grain wheat bread on glycaemic
control among persons with pre-diabetes: a study protocol of the CarbHealth study.
BMJ Open, 12(8), Article e062066. https://doi.org/10.1136/bmjopen-2022-062066'
bibtex: '@article{Hjorth_Schadow_Revheim_Spielau_Thomassen_Meyer_Piotrowski_Rosendahl-Riise_Rieder_Varela_et
al._2022, title={Sixteen-week multicentre randomised controlled trial to study
the effect of the consumption of an oat beta-glucan-enriched bread versus a whole-grain
wheat bread on glycaemic control among persons with pre-diabetes: a study protocol
of the CarbHealth study}, volume={12}, DOI={10.1136/bmjopen-2022-062066},
number={8e062066}, journal={BMJ Open}, publisher={BMJ}, author={Hjorth, Therese
and Schadow, Alena and Revheim, Ingrid and Spielau, Ulrike and Thomassen, Lise
M and Meyer, Klara and Piotrowski, Katja and Rosendahl-Riise, Hanne and Rieder,
Anne and Varela, Paula and et al.}, year={2022} }'
chicago: 'Hjorth, Therese, Alena Schadow, Ingrid Revheim, Ulrike Spielau, Lise M
Thomassen, Klara Meyer, Katja Piotrowski, et al. “Sixteen-Week Multicentre Randomised
Controlled Trial to Study the Effect of the Consumption of an Oat Beta-Glucan-Enriched
Bread versus a Whole-Grain Wheat Bread on Glycaemic Control among Persons with
Pre-Diabetes: A Study Protocol of the CarbHealth Study.” BMJ Open 12, no.
8 (2022). https://doi.org/10.1136/bmjopen-2022-062066.'
ieee: 'T. Hjorth et al., “Sixteen-week multicentre randomised controlled
trial to study the effect of the consumption of an oat beta-glucan-enriched bread
versus a whole-grain wheat bread on glycaemic control among persons with pre-diabetes:
a study protocol of the CarbHealth study,” BMJ Open, vol. 12, no. 8, Art.
no. e062066, 2022, doi: 10.1136/bmjopen-2022-062066.'
mla: 'Hjorth, Therese, et al. “Sixteen-Week Multicentre Randomised Controlled Trial
to Study the Effect of the Consumption of an Oat Beta-Glucan-Enriched Bread versus
a Whole-Grain Wheat Bread on Glycaemic Control among Persons with Pre-Diabetes:
A Study Protocol of the CarbHealth Study.” BMJ Open, vol. 12, no. 8, e062066,
BMJ, 2022, doi:10.1136/bmjopen-2022-062066.'
short: T. Hjorth, A. Schadow, I. Revheim, U. Spielau, L.M. Thomassen, K. Meyer,
K. Piotrowski, H. Rosendahl-Riise, A. Rieder, P. Varela, V. Lysne, S. Ballance,
A. Koerner, R. Landberg, A. Buyken, J. Dierkes, BMJ Open 12 (2022).
date_created: 2023-01-05T16:31:47Z
date_updated: 2023-01-05T16:47:45Z
department:
- _id: '35'
- _id: '17'
- _id: '22'
- _id: '571'
doi: 10.1136/bmjopen-2022-062066
intvolume: ' 12'
issue: '8'
keyword:
- General Medicine
language:
- iso: eng
publication: BMJ Open
publication_identifier:
issn:
- 2044-6055
- 2044-6055
publication_status: published
publisher: BMJ
status: public
title: 'Sixteen-week multicentre randomised controlled trial to study the effect of
the consumption of an oat beta-glucan-enriched bread versus a whole-grain wheat
bread on glycaemic control among persons with pre-diabetes: a study protocol of
the CarbHealth study'
type: journal_article
user_id: '61597'
volume: 12
year: '2022'
...