---
_id: '46809'
author:
- first_name: M.
full_name: Rossel, M.
last_name: Rossel
- first_name: G.
full_name: Meschut, G.
last_name: Meschut
citation:
ama: 'Rossel M, Meschut G. Modeling and Parameterization for a 3D Simulation of
Clinching with an Extensible Die. In: Lecture Notes in Mechanical Engineering.
Springer Nature Switzerland; 2023. doi:10.1007/978-3-031-41341-4_9'
apa: Rossel, M., & Meschut, G. (2023). Modeling and Parameterization for a 3D
Simulation of Clinching with an Extensible Die. In Lecture Notes in Mechanical
Engineering. Springer Nature Switzerland. https://doi.org/10.1007/978-3-031-41341-4_9
bibtex: '@inbook{Rossel_Meschut_2023, place={Cham}, title={Modeling and Parameterization
for a 3D Simulation of Clinching with an Extensible Die}, DOI={10.1007/978-3-031-41341-4_9},
booktitle={Lecture Notes in Mechanical Engineering}, publisher={Springer Nature
Switzerland}, author={Rossel, M. and Meschut, G.}, year={2023} }'
chicago: 'Rossel, M., and G. Meschut. “Modeling and Parameterization for a 3D Simulation
of Clinching with an Extensible Die.” In Lecture Notes in Mechanical Engineering.
Cham: Springer Nature Switzerland, 2023. https://doi.org/10.1007/978-3-031-41341-4_9.'
ieee: 'M. Rossel and G. Meschut, “Modeling and Parameterization for a 3D Simulation
of Clinching with an Extensible Die,” in Lecture Notes in Mechanical Engineering,
Cham: Springer Nature Switzerland, 2023.'
mla: Rossel, M., and G. Meschut. “Modeling and Parameterization for a 3D Simulation
of Clinching with an Extensible Die.” Lecture Notes in Mechanical Engineering,
Springer Nature Switzerland, 2023, doi:10.1007/978-3-031-41341-4_9.
short: 'M. Rossel, G. Meschut, in: Lecture Notes in Mechanical Engineering, Springer
Nature Switzerland, Cham, 2023.'
date_created: 2023-09-05T13:51:11Z
date_updated: 2023-09-05T13:51:17Z
department:
- _id: '157'
doi: 10.1007/978-3-031-41341-4_9
language:
- iso: eng
place: Cham
publication: Lecture Notes in Mechanical Engineering
publication_identifier:
isbn:
- '9783031413407'
- '9783031413414'
issn:
- 2195-4356
- 2195-4364
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Modeling and Parameterization for a 3D Simulation of Clinching with an Extensible
Die
type: book_chapter
user_id: '44503'
year: '2023'
...
---
_id: '46818'
abstract:
- lang: eng
text: AbstractObjectiveConcerns
about short‐ and long‐term consequences of repetitive heading contributed to heading
restrictions in youth football in some countries. This prospective longitudinal
cohort study aims to describe heading exposure in children's and youth football
over two seasons using standardized video analysis.MethodsAll
matches and training sessions of a male Under‐11 (n = 29),
Under‐15 (n = 28), Under‐19 (n = 38),
and female Under‐17 (n = 39) team were videotaped during
the seasons 2019–2020 and 2020–2021. Heading frequencies and characteristics were
analyzed. Individual heading exposure is presented as average incidence rates
(IR) per 1000 match/training hours.ResultsIn
275 matches and 673 training sessions, 22 921 headers were observed. Heading IR
per player in matches was 1256 (Under‐11 m), 1608 (Under‐15 m), 1050 (Under‐17 f),
and 1966 (Under‐19 m). In training sessions, IR per player was 739 (Under‐11 m),
2206 (Under‐15 m), 1661 (Under‐17 f), and 1419 (Under‐19 m). Five Under‐15 males
headed the ball five to eight times per training on average. Most headers were
performed without heading duels. Flight distance was predominantly 5–20 m (54%)
in matches and <5 m (65%) in training. While head impact location most frequently
was at frontal areas, one‐third of all headers in Under‐11 in matches hit temporal,
parietal, and occipital parts of the head.ConclusionHeading
incidence was low in the youngest age group, whereas (predominantly five) Under‐15
males showed very high heading exposures in training. In assessment and regulation
of heading burden, training sessions and individual heading behavior should specifically
be addressed. Recommendations for heading the ball in practice should account
for individual and age‐related differences.
author:
- first_name: Rebecca
full_name: Reeschke, Rebecca
id: '44893'
last_name: Reeschke
- first_name: Franziska Katharina
full_name: Haase, Franziska Katharina
id: '63237'
last_name: Haase
orcid: 0000-0001-8127-8458
- first_name: Lena
full_name: Dautzenberg, Lena
last_name: Dautzenberg
- first_name: Werner
full_name: Krutsch, Werner
last_name: Krutsch
- first_name: Claus
full_name: Reinsberger, Claus
id: '48978'
last_name: Reinsberger
citation:
ama: 'Reeschke R, Haase FK, Dautzenberg L, Krutsch W, Reinsberger C. Training matters:
Heading incidence and characteristics in children’s and youth football (soccer)
players. Scandinavian Journal of Medicine & Science in Sports. 2023;33(9):1821-1830.
doi:10.1111/sms.14408'
apa: 'Reeschke, R., Haase, F. K., Dautzenberg, L., Krutsch, W., & Reinsberger,
C. (2023). Training matters: Heading incidence and characteristics in children’s
and youth football (soccer) players. Scandinavian Journal of Medicine &
Science in Sports, 33(9), 1821–1830. https://doi.org/10.1111/sms.14408'
bibtex: '@article{Reeschke_Haase_Dautzenberg_Krutsch_Reinsberger_2023, title={Training
matters: Heading incidence and characteristics in children’s and youth football
(soccer) players}, volume={33}, DOI={10.1111/sms.14408},
number={9}, journal={Scandinavian Journal of Medicine & Science in Sports},
publisher={Wiley}, author={Reeschke, Rebecca and Haase, Franziska Katharina and
Dautzenberg, Lena and Krutsch, Werner and Reinsberger, Claus}, year={2023}, pages={1821–1830}
}'
chicago: 'Reeschke, Rebecca, Franziska Katharina Haase, Lena Dautzenberg, Werner
Krutsch, and Claus Reinsberger. “Training Matters: Heading Incidence and Characteristics
in Children’s and Youth Football (Soccer) Players.” Scandinavian Journal of
Medicine & Science in Sports 33, no. 9 (2023): 1821–30. https://doi.org/10.1111/sms.14408.'
ieee: 'R. Reeschke, F. K. Haase, L. Dautzenberg, W. Krutsch, and C. Reinsberger,
“Training matters: Heading incidence and characteristics in children’s and youth
football (soccer) players,” Scandinavian Journal of Medicine & Science
in Sports, vol. 33, no. 9, pp. 1821–1830, 2023, doi: 10.1111/sms.14408.'
mla: 'Reeschke, Rebecca, et al. “Training Matters: Heading Incidence and Characteristics
in Children’s and Youth Football (Soccer) Players.” Scandinavian Journal of
Medicine & Science in Sports, vol. 33, no. 9, Wiley, 2023, pp. 1821–30,
doi:10.1111/sms.14408.'
short: R. Reeschke, F.K. Haase, L. Dautzenberg, W. Krutsch, C. Reinsberger, Scandinavian
Journal of Medicine & Science in Sports 33 (2023) 1821–1830.
date_created: 2023-09-06T11:06:47Z
date_updated: 2023-09-06T11:12:10Z
doi: 10.1111/sms.14408
intvolume: ' 33'
issue: '9'
keyword:
- Physical Therapy
- Sports Therapy and Rehabilitation
- Orthopedics and Sports Medicine
language:
- iso: eng
page: 1821-1830
publication: Scandinavian Journal of Medicine & Science in Sports
publication_identifier:
issn:
- 0905-7188
- 1600-0838
publication_status: published
publisher: Wiley
status: public
title: 'Training matters: Heading incidence and characteristics in children''s and
youth football (soccer) players'
type: journal_article
user_id: '44893'
volume: 33
year: '2023'
...
---
_id: '46957'
abstract:
- lang: eng
text: Modern companies often face various challenges in concept development of products
or systems. Design engineers prepare initial concepts as 3D models. These are
then simulated by computational engineers. If requirements are not met, this necessitates
an iterative process that runs between the design and computation departments
until a valid concept is created. Design methods such as topology optimization
are often used here. The upcoming result is then attempted to be adapted to certain
manufacturing processes. These iteration loops can sometimes take a very long
time, since the model construction and structural optimization generate large
computational efforts. The present work shows on an example a methodical approach,
which represents a first proof of concept, to solving this problem, including
a description of methods and techniques, as well as possible problems in a detailed
analysis concerning training data for neural networks and their abstraction capabilities.
It is evident that additional research work needs to be conducted for further
utilization in order to address all arising questions.
author:
- first_name: Manuel
full_name: Ott, Manuel
id: '44204'
last_name: Ott
- first_name: Niclas
full_name: Meihöfener, Niclas
id: '38611'
last_name: Meihöfener
- first_name: Iryna
full_name: Mozgova, Iryna
id: '95903'
last_name: Mozgova
citation:
ama: 'Ott M, Meihöfener N, Mozgova I. Methodical Approach to Reducing Design Time
by using Neural Networks in Early Stages of Concept Development. In: Ott M, ed.
Proceedings of the 34rd Annual International Solid Freeform Fabrication Symposium
2023. ; 2023.'
apa: Ott, M., Meihöfener, N., & Mozgova, I. (2023). Methodical Approach to Reducing
Design Time by using Neural Networks in Early Stages of Concept Development. In
M. Ott (Ed.), Proceedings of the 34rd Annual International Solid Freeform Fabrication
Symposium 2023.
bibtex: '@inproceedings{Ott_Meihöfener_Mozgova_2023, place={Austin, Texas, United
States}, title={Methodical Approach to Reducing Design Time by using Neural Networks
in Early Stages of Concept Development}, booktitle={Proceedings of the 34rd Annual
International Solid Freeform Fabrication Symposium 2023}, author={Ott, Manuel
and Meihöfener, Niclas and Mozgova, Iryna}, editor={Ott, Manuel}, year={2023}
}'
chicago: Ott, Manuel, Niclas Meihöfener, and Iryna Mozgova. “Methodical Approach
to Reducing Design Time by Using Neural Networks in Early Stages of Concept Development.”
In Proceedings of the 34rd Annual International Solid Freeform Fabrication
Symposium 2023, edited by Manuel Ott. Austin, Texas, United States, 2023.
ieee: M. Ott, N. Meihöfener, and I. Mozgova, “Methodical Approach to Reducing Design
Time by using Neural Networks in Early Stages of Concept Development,” in Proceedings
of the 34rd Annual International Solid Freeform Fabrication Symposium 2023,
Austin, Texas, United States, 2023.
mla: Ott, Manuel, et al. “Methodical Approach to Reducing Design Time by Using Neural
Networks in Early Stages of Concept Development.” Proceedings of the 34rd Annual
International Solid Freeform Fabrication Symposium 2023, edited by Manuel
Ott, 2023.
short: 'M. Ott, N. Meihöfener, I. Mozgova, in: M. Ott (Ed.), Proceedings of the
34rd Annual International Solid Freeform Fabrication Symposium 2023, Austin, Texas,
United States, 2023.'
conference:
end_date: 2023-08-16
location: Austin, Texas, United States
name: Solid Freeform Fabrication Symposium 2023
start_date: 2023-08-14
date_created: 2023-09-11T12:12:50Z
date_updated: 2023-09-18T06:12:51Z
department:
- _id: '741'
- _id: '144'
editor:
- first_name: Manuel
full_name: Ott, Manuel
last_name: Ott
language:
- iso: eng
place: Austin, Texas, United States
publication: Proceedings of the 34rd Annual International Solid Freeform Fabrication
Symposium 2023
quality_controlled: '1'
status: public
title: Methodical Approach to Reducing Design Time by using Neural Networks in Early
Stages of Concept Development
type: conference
user_id: '44204'
year: '2023'
...
---
_id: '56937'
abstract:
- lang: eng
text: Ein Trend in der Produktion sind individualisierte Produkte und damit eine
höhere Variantenvielfalt, die idealerweise durch effiziente Produktionsprozesse
hergestellt werden. Effizienz bedeutet in diesem Fall, dass die Produkte kostengünstig
und bedarfsgerecht hergestellt werden. Der Trend geht hierbei auch in der Massenproduktion
zu einer flexiblen Produktion, um das gebundene Kapital zu reduzieren und zeitnah
auf Kundenwünsche reagieren zu können. Dies führt zu einem häufigeren Umrüsten
der Werkzeuge in den Maschinen und somit zu einem immer häufigeren Einrichten
der Prozesse.In dieser Arbeit wird eine Systematik für ein adaptives Einrichtassistenzsystem
entwickelt, welches den Maschinenbediener beim Einrichten mithilfe eines definierten
Vorgehens durch den Prozess leitet. Der Bediener wird dabei unterstützt die momentane
Produktqualität zu bewerten und bekommt einen quantitativen Vorschlag zur Variation
der Justagemöglichkeiten. So kann der Einrichtprozess zielgerichteter und fehlerfreier
durchgeführt werden. Ermöglicht wird dies durch die Abbildung des notwendigen
Expertenwissens in datengetriebenen Modellen. Mithilfe des so abgebildeten Expertenwissens
werden optimierte Einstellungen berechnet und am Werkzeug eingestellt. Es ist
nicht davon auszugehen, dass das virtualisierte Expertenwissen die Realität allumfassend
abbilden und alle akuten Umwelteinflüsse messtechnisch ermittelt werden können.
Etwaige Abweichungen der Produktqualität werden direkt in der entwickelten Optimierung
und bei Bedarf mithilfe der vorgeschlagenen Kompensationsstrategie eliminiert.Die
Systematik wird anhand eines Folgeverbundprozesses validiert. Nach der Analyse
des Prozesses werden die wesentlichen Komponenten für das System entwickelt und
mithilfe von Versuchen und Simulationen die Funktionsfähigkeit erfolgreich nachgewiesen.
- lang: eng
text: A trend in production are individualized products and thus a higher number
of variants, which are ideally produced by efficient production processes. In
this case, efficiency means that the products are manufactured at low cost and
in line with demand. This trend, flexible manufacturing, is also valid for mass
production, in order to reduce tied up capital and still be able to react promptly
to customer demands. This leads to more frequent retooling in the machines and
thus also to an increasingly frequent setting up of the processes.In this thesis,
a systematic for an adaptive set-up assistant is developed, which guides the machine
operator through the process during setup. The machine operator is supported in
evaluating the current product quality and receives a quantitative proposal for
the variation of the adjustment possibilities. Thus, the set-up process can be
carried out in a more targeted and error-free manner. This is made possible by
mapping the necessary expert knowledge in data-driven models. The expert knowledge
is used to calculate optimized settings and adjust them on the tool. It cannot
be assumed that virtualized expert knowledge will comprehensively map reality
and that all acute environmental influences can be measured. Any deviations in
product quality are directly eliminated in the developed optimization and, if
necessary, with a proposed compensation strategy.The system is validated with
a progressive tool. After analyzing the process, the essential components for
the system are developed and their functionality is successfully demonstrated
by means of tests and simulations.
author:
- first_name: Manuel
full_name: Gräler, Manuel
last_name: Gräler
citation:
ama: Gräler M. Entwicklung adaptiver Einrichtassistenzsysteme für Produktionsprozesse.
Vol 417. Verlagsschriftenreihe des Heinz Nixdorf Instituts; 2023. doi:10.17619/UNIPB/1-1894
apa: Gräler, M. (2023). Entwicklung adaptiver Einrichtassistenzsysteme für Produktionsprozesse
(Vol. 417). Verlagsschriftenreihe des Heinz Nixdorf Instituts. https://doi.org/10.17619/UNIPB/1-1894
bibtex: '@book{Gräler_2023, title={Entwicklung adaptiver Einrichtassistenzsysteme
für Produktionsprozesse}, volume={417}, DOI={10.17619/UNIPB/1-1894},
publisher={Verlagsschriftenreihe des Heinz Nixdorf Instituts}, author={Gräler,
Manuel}, year={2023} }'
chicago: Gräler, Manuel. Entwicklung adaptiver Einrichtassistenzsysteme für Produktionsprozesse.
Vol. 417. Verlagsschriftenreihe des Heinz Nixdorf Instituts, 2023. https://doi.org/10.17619/UNIPB/1-1894.
ieee: M. Gräler, Entwicklung adaptiver Einrichtassistenzsysteme für Produktionsprozesse,
vol. 417. Verlagsschriftenreihe des Heinz Nixdorf Instituts, 2023.
mla: Gräler, Manuel. Entwicklung adaptiver Einrichtassistenzsysteme für Produktionsprozesse.
Verlagsschriftenreihe des Heinz Nixdorf Instituts, 2023, doi:10.17619/UNIPB/1-1894.
short: M. Gräler, Entwicklung adaptiver Einrichtassistenzsysteme für Produktionsprozesse,
Verlagsschriftenreihe des Heinz Nixdorf Instituts, 2023.
date_created: 2024-11-07T09:15:33Z
date_updated: 2024-11-07T11:41:58Z
department:
- _id: '153'
- _id: '241'
doi: 10.17619/UNIPB/1-1894
intvolume: ' 417'
language:
- iso: ger
publication_status: published
publisher: Verlagsschriftenreihe des Heinz Nixdorf Instituts
status: public
supervisor:
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
title: Entwicklung adaptiver Einrichtassistenzsysteme für Produktionsprozesse
type: dissertation
user_id: '82875'
volume: 417
year: '2023'
...
---
_id: '57221'
author:
- first_name: Sandeep
full_name: Babu, Sandeep
last_name: Babu
- first_name: Majid
full_name: Jegarian, Majid
last_name: Jegarian
- first_name: Dirk
full_name: Fischer, Dirk
id: '15357'
last_name: Fischer
orcid: 0000-0002-0792-6370
- first_name: Bärbel
full_name: Mertsching, Bärbel
last_name: Mertsching
citation:
ama: 'Babu S, Jegarian M, Fischer D, Mertsching B. Fast 3D Semantic Segmentation
Using a Self Attention Network and Random Sampling. In: Lecture Notes in Computer
Science. Springer Nature Switzerland; 2023. doi:10.1007/978-3-031-43360-3_21'
apa: Babu, S., Jegarian, M., Fischer, D., & Mertsching, B. (2023). Fast 3D Semantic
Segmentation Using a Self Attention Network and Random Sampling. In Lecture
Notes in Computer Science. Springer Nature Switzerland. https://doi.org/10.1007/978-3-031-43360-3_21
bibtex: '@inbook{Babu_Jegarian_Fischer_Mertsching_2023, title={Fast 3D Semantic
Segmentation Using a Self Attention Network and Random Sampling}, DOI={10.1007/978-3-031-43360-3_21},
booktitle={Lecture Notes in Computer Science}, publisher={Springer Nature Switzerland},
author={Babu, Sandeep and Jegarian, Majid and Fischer, Dirk and Mertsching, Bärbel},
year={2023} }'
chicago: Babu, Sandeep, Majid Jegarian, Dirk Fischer, and Bärbel Mertsching. “Fast
3D Semantic Segmentation Using a Self Attention Network and Random Sampling.”
In Lecture Notes in Computer Science. Springer Nature Switzerland, 2023.
https://doi.org/10.1007/978-3-031-43360-3_21.
ieee: S. Babu, M. Jegarian, D. Fischer, and B. Mertsching, “Fast 3D Semantic Segmentation
Using a Self Attention Network and Random Sampling,” in Lecture Notes in Computer
Science, Springer Nature Switzerland, 2023.
mla: Babu, Sandeep, et al. “Fast 3D Semantic Segmentation Using a Self Attention
Network and Random Sampling.” Lecture Notes in Computer Science, Springer
Nature Switzerland, 2023, doi:10.1007/978-3-031-43360-3_21.
short: 'S. Babu, M. Jegarian, D. Fischer, B. Mertsching, in: Lecture Notes in Computer
Science, Springer Nature Switzerland, 2023.'
date_created: 2024-11-19T10:29:32Z
date_updated: 2025-01-22T15:39:20Z
department:
- _id: '50'
doi: 10.1007/978-3-031-43360-3_21
language:
- iso: eng
publication: Lecture Notes in Computer Science
publication_identifier:
isbn:
- '9783031433597'
- '9783031433603'
issn:
- 0302-9743
- 1611-3349
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Fast 3D Semantic Segmentation Using a Self Attention Network and Random Sampling
type: book_chapter
user_id: '15357'
year: '2023'
...
---
_id: '59184'
author:
- first_name: Jonas
full_name: Jalowy, Jonas
id: '113768'
last_name: Jalowy
orcid: 0000-0001-9624-2685
citation:
ama: Jalowy J. The Wasserstein distance to the circular law. Annales de l’Institut
Henri Poincaré, Probabilités et Statistiques. 2023;59(4). doi:10.1214/22-aihp1317
apa: Jalowy, J. (2023). The Wasserstein distance to the circular law. Annales
de l’Institut Henri Poincaré, Probabilités et Statistiques, 59(4).
https://doi.org/10.1214/22-aihp1317
bibtex: '@article{Jalowy_2023, title={The Wasserstein distance to the circular law},
volume={59}, DOI={10.1214/22-aihp1317},
number={4}, journal={Annales de l’Institut Henri Poincaré, Probabilités et Statistiques},
publisher={Institute of Mathematical Statistics}, author={Jalowy, Jonas}, year={2023}
}'
chicago: Jalowy, Jonas. “The Wasserstein Distance to the Circular Law.” Annales
de l’Institut Henri Poincaré, Probabilités et Statistiques 59, no. 4 (2023).
https://doi.org/10.1214/22-aihp1317.
ieee: 'J. Jalowy, “The Wasserstein distance to the circular law,” Annales de
l’Institut Henri Poincaré, Probabilités et Statistiques, vol. 59, no. 4, 2023,
doi: 10.1214/22-aihp1317.'
mla: Jalowy, Jonas. “The Wasserstein Distance to the Circular Law.” Annales de
l’Institut Henri Poincaré, Probabilités et Statistiques, vol. 59, no. 4, Institute
of Mathematical Statistics, 2023, doi:10.1214/22-aihp1317.
short: J. Jalowy, Annales de l’Institut Henri Poincaré, Probabilités et Statistiques
59 (2023).
date_created: 2025-03-31T07:12:40Z
date_updated: 2025-04-23T14:38:24Z
doi: 10.1214/22-aihp1317
intvolume: ' 59'
issue: '4'
language:
- iso: eng
publication: Annales de l'Institut Henri Poincaré, Probabilités et Statistiques
publication_identifier:
issn:
- 0246-0203
publication_status: published
publisher: Institute of Mathematical Statistics
status: public
title: The Wasserstein distance to the circular law
type: journal_article
user_id: '113768'
volume: 59
year: '2023'
...
---
_id: '60095'
abstract:
- lang: eng
text: "AbstractEndurance training has been shown
to be effective in treating adolescents with major depressive disorder (MDD).
To integrate endurance training into the therapeutic setting and the adolescents'
daily lives, the current performance status of the adolescents should be accurately
assessed. This study aims to examine adolescents with MDD concerning exhaustion
criteria during a cardiopulmonary exercise test (CPET), as well as to compare
the values obtained thereon with sex- and age-related control values. The study
included a retrospective examination of exhaustion criteria ((i) oxygen consumption
(V̇O2) plateau, (ii) peak respiratory exchange ratio (RERpeak) > 1.0,
(iii) peak heart rate (HRpeak) ≥ 95% of the age-predicted
maximal HR, and (iv) peak blood lactate concentration (BLCpeak) > 8.0 mmol⋅L−1)
during a graded CPET on a cycle ergometer in adolescents with MDD (n = 57). Subsequently,
maximal V̇O2, peak minute ventilation, V̇O2
at the first ventilatory threshold, and peak work rate of participants who met
at least two of four criteria were compared with published control values using
an independent-sample t-test. Thirty-three percent of the total population achieved
a V̇O2 plateau and 75% a RERpeak > 1.0.
The HR and BLC criteria were met by 19% and 22%, respectively. T-test results
revealed significant differences between adolescents with MDD and control values
for all outcomes. Adolescents with MDD achieved between 56% and 83% of control
values. Conclusions: The study shows
that compared with control values, fewer adolescents with MDD achieve the exhaustion
criteria on a CPET and adolescents with MDD have significantly lower cardiorespiratory
fitness. Clinical trial registration:
No. U1111-1145–1854.\r\n
\ \r\n What
is Known:• It is already known that endurance training
has a positive effect on depressive symptoms.\r\n \r\n
\ \r\n What
is New:• A relevant proportion of adolescents with major
depressive disorder do not achieve their V̇O2max during a graded cardiopulmonary
exercise test.• Adolescents with major depressive disorder
have significantly lower cardiorespiratory fitness compared to sex- and age-related
control values.\r\n \r\n
\ "
author:
- first_name: Charlotte
full_name: Wenzel, Charlotte
last_name: Wenzel
- first_name: Bart Chateau
full_name: Bongers, Bart Chateau
last_name: Bongers
- first_name: Marit Lea
full_name: Schlagheck, Marit Lea
id: '117661'
last_name: Schlagheck
orcid: '0000-0002-8913-6080 '
- first_name: Daniela
full_name: Reis, Daniela
last_name: Reis
- first_name: Franziska
full_name: Reinhard, Franziska
last_name: Reinhard
- first_name: Peter
full_name: Schmidt, Peter
last_name: Schmidt
- first_name: Stefan
full_name: Bernitzki, Stefan
last_name: Bernitzki
- first_name: Max
full_name: Oberste, Max
last_name: Oberste
- first_name: Heidrun Lioba
full_name: Wunram, Heidrun Lioba
last_name: Wunram
- first_name: Philipp
full_name: Zimmer, Philipp
last_name: Zimmer
- first_name: Oliver
full_name: Fricke, Oliver
last_name: Fricke
citation:
ama: Wenzel C, Bongers BC, Schlagheck ML, et al. Validation of the maximal cardiopulmonary
exercise test in adolescents with major depressive disorder and comparison of
cardiorespiratory fitness with sex- and age-related control values. European
Journal of Pediatrics. 2023;183(1):379-388. doi:10.1007/s00431-023-05304-6
apa: Wenzel, C., Bongers, B. C., Schlagheck, M. L., Reis, D., Reinhard, F., Schmidt,
P., Bernitzki, S., Oberste, M., Wunram, H. L., Zimmer, P., & Fricke, O. (2023).
Validation of the maximal cardiopulmonary exercise test in adolescents with major
depressive disorder and comparison of cardiorespiratory fitness with sex- and
age-related control values. European Journal of Pediatrics, 183(1),
379–388. https://doi.org/10.1007/s00431-023-05304-6
bibtex: '@article{Wenzel_Bongers_Schlagheck_Reis_Reinhard_Schmidt_Bernitzki_Oberste_Wunram_Zimmer_et
al._2023, title={Validation of the maximal cardiopulmonary exercise test in adolescents
with major depressive disorder and comparison of cardiorespiratory fitness with
sex- and age-related control values}, volume={183}, DOI={10.1007/s00431-023-05304-6},
number={1}, journal={European Journal of Pediatrics}, publisher={Springer Science
and Business Media LLC}, author={Wenzel, Charlotte and Bongers, Bart Chateau and
Schlagheck, Marit Lea and Reis, Daniela and Reinhard, Franziska and Schmidt, Peter
and Bernitzki, Stefan and Oberste, Max and Wunram, Heidrun Lioba and Zimmer, Philipp
and et al.}, year={2023}, pages={379–388} }'
chicago: 'Wenzel, Charlotte, Bart Chateau Bongers, Marit Lea Schlagheck, Daniela
Reis, Franziska Reinhard, Peter Schmidt, Stefan Bernitzki, et al. “Validation
of the Maximal Cardiopulmonary Exercise Test in Adolescents with Major Depressive
Disorder and Comparison of Cardiorespiratory Fitness with Sex- and Age-Related
Control Values.” European Journal of Pediatrics 183, no. 1 (2023): 379–88.
https://doi.org/10.1007/s00431-023-05304-6.'
ieee: 'C. Wenzel et al., “Validation of the maximal cardiopulmonary exercise
test in adolescents with major depressive disorder and comparison of cardiorespiratory
fitness with sex- and age-related control values,” European Journal of Pediatrics,
vol. 183, no. 1, pp. 379–388, 2023, doi: 10.1007/s00431-023-05304-6.'
mla: Wenzel, Charlotte, et al. “Validation of the Maximal Cardiopulmonary Exercise
Test in Adolescents with Major Depressive Disorder and Comparison of Cardiorespiratory
Fitness with Sex- and Age-Related Control Values.” European Journal of Pediatrics,
vol. 183, no. 1, Springer Science and Business Media LLC, 2023, pp. 379–88, doi:10.1007/s00431-023-05304-6.
short: C. Wenzel, B.C. Bongers, M.L. Schlagheck, D. Reis, F. Reinhard, P. Schmidt,
S. Bernitzki, M. Oberste, H.L. Wunram, P. Zimmer, O. Fricke, European Journal
of Pediatrics 183 (2023) 379–388.
date_created: 2025-06-02T09:49:36Z
date_updated: 2025-06-02T09:52:44Z
doi: 10.1007/s00431-023-05304-6
extern: '1'
intvolume: ' 183'
issue: '1'
language:
- iso: eng
page: 379-388
publication: European Journal of Pediatrics
publication_identifier:
issn:
- 1432-1076
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Validation of the maximal cardiopulmonary exercise test in adolescents with
major depressive disorder and comparison of cardiorespiratory fitness with sex-
and age-related control values
type: journal_article
user_id: '117661'
volume: 183
year: '2023'
...
---
_id: '64045'
abstract:
- lang: eng
text: Abstract In this work, we report on an improved cell assembly of cylindrical
electrochemical cells for 23Na in-situ solid-state NMR (ssNMR) investigations.
The cell set-up is suitable for using powder electrode materials. Reproducibility
of our cell assembly is analyzed by preparing two cells containing hard carbon
(HC) powder as working electrode and sodium metal as reference electrode. Electrochemical
storage properties of HC powder electrode derived from carbonization of sustainable
cellulose are studied by ssNMR. 23Na in-situ ssNMR monitors the sodiation/desodiation
of a Na{\textbar}NaPF6{\textbar}HC cell (cell 1) over a period of 22?days, showing
high cell stability. After the galvanostatic process, the HC powder material is
investigated by high resolution 23Na ex-situ MAS NMR. The formation of ionic sodium
species in different chemical environments is obtained. Subsequently, a second
Na{\textbar}NaPF6{\textbar}HC cell (cell 2) is sodiated for 11?days achieving
a capacity of 220?mAh/g. 23Na ex-situ MAS NMR measurements of the HC powder material
extracted from this cell clearly indicate the presence of quasi-metallic sodium
species next to ionic sodium species. This observation of quasi-metallic sodium
species is discussed in terms of the achieved capacity of the cell as well as
of side reactions of sodium in this electrode material.
author:
- first_name: Edina
full_name: Šić, Edina
last_name: Šić
- first_name: Konstantin
full_name: Schutjajew, Konstantin
last_name: Schutjajew
- first_name: Ulrich
full_name: Haagen, Ulrich
last_name: Haagen
- first_name: Hergen
full_name: Breitzke, Hergen
last_name: Breitzke
- first_name: Martin
full_name: Oschatz, Martin
last_name: Oschatz
- first_name: Gerd
full_name: Buntkowsky, Gerd
last_name: Buntkowsky
- first_name: Torsten
full_name: Gutmann, Torsten
id: '118165'
last_name: Gutmann
citation:
ama: 'Šić E, Schutjajew K, Haagen U, et al. Electrochemical Sodium Storage in Hard
Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from
In-Situ and Ex-Situ Solid-State NMR. Chemsuschem. 2023;17:e202301300. doi:10.1002/cssc.202301300'
apa: 'Šić, E., Schutjajew, K., Haagen, U., Breitzke, H., Oschatz, M., Buntkowsky,
G., & Gutmann, T. (2023). Electrochemical Sodium Storage in Hard Carbon Powder
Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and
Ex-Situ Solid-State NMR. Chemsuschem, 17, e202301300. https://doi.org/10.1002/cssc.202301300'
bibtex: '@article{Šić_Schutjajew_Haagen_Breitzke_Oschatz_Buntkowsky_Gutmann_2023,
title={Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented
in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR},
volume={17}, DOI={10.1002/cssc.202301300},
journal={Chemsuschem}, publisher={John Wiley & Sons, Ltd}, author={Šić, Edina
and Schutjajew, Konstantin and Haagen, Ulrich and Breitzke, Hergen and Oschatz,
Martin and Buntkowsky, Gerd and Gutmann, Torsten}, year={2023}, pages={e202301300}
}'
chicago: 'Šić, Edina, Konstantin Schutjajew, Ulrich Haagen, Hergen Breitzke, Martin
Oschatz, Gerd Buntkowsky, and Torsten Gutmann. “Electrochemical Sodium Storage
in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights
from In-Situ and Ex-Situ Solid-State NMR.” Chemsuschem 17 (2023): e202301300.
https://doi.org/10.1002/cssc.202301300.'
ieee: 'E. Šić et al., “Electrochemical Sodium Storage in Hard Carbon Powder
Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and
Ex-Situ Solid-State NMR,” Chemsuschem, vol. 17, p. e202301300, 2023, doi:
10.1002/cssc.202301300.'
mla: 'Šić, Edina, et al. “Electrochemical Sodium Storage in Hard Carbon Powder Electrodes
Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State
NMR.” Chemsuschem, vol. 17, John Wiley & Sons, Ltd, 2023, p. e202301300,
doi:10.1002/cssc.202301300.'
short: E. Šić, K. Schutjajew, U. Haagen, H. Breitzke, M. Oschatz, G. Buntkowsky,
T. Gutmann, Chemsuschem 17 (2023) e202301300.
date_created: 2026-02-07T16:12:13Z
date_updated: 2026-02-17T16:13:10Z
doi: 10.1002/cssc.202301300
extern: '1'
intvolume: ' 17'
keyword:
- solid-state nmr
- hard carbon
- electrochemical cells
- in-situ characterization
- sodium
language:
- iso: eng
page: e202301300
publication: Chemsuschem
publication_identifier:
issn:
- 1864-5631
publisher: John Wiley & Sons, Ltd
status: public
title: 'Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented
in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR'
type: journal_article
user_id: '100715'
volume: 17
year: '2023'
...
---
_id: '61252'
abstract:
- lang: eng
text: AbstractThe biexciton‐exciton emission cascade
commonly used in quantum‐dot systems to generate polarization entanglement yields
photons with intrinsically limited indistinguishability. In the present work,
it focuses on the generation of pairs of photons with high degrees of polarization
entanglement and simultaneously high indistinguishability. It achieves this goal
by selectively reducing the biexciton lifetime with an optical resonator. It demonstrates
that a suitably tailored circular Bragg reflector fulfills the requirements of
sufficient selective Purcell enhancement of biexciton emission paired with spectrally
broad photon extraction and twofold degenerate optical modes. The in‐depth theoretical
study combines (i) the optimization of realistic photonic structures solving Maxwell's
equations from which model parameters are extracted as input for (ii) microscopic
simulations of quantum‐dot cavity excitation dynamics with full access to photon
properties. It reports non‐trivial dependencies on system parameters and use the
predictive power of the combined theoretical approach to determine the optimal
range of Purcell enhancement that maximizes indistinguishability and entanglement
to near unity values, here specifically for the telecom C‐band at 1550 nm.
article_number: '2300142'
author:
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Dustin
full_name: Siebert, Dustin
last_name: Siebert
- first_name: Klaus D.
full_name: Jöns, Klaus D.
id: '85353'
last_name: Jöns
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch D, Siebert D, Jöns KD, Förstner J, Schumacher S. On‐Demand Indistinguishable
and Entangled Photons Using Tailored Cavity Designs. Advanced Quantum Technologies.
2023;7(1). doi:10.1002/qute.202300142
apa: Bauch, D., Siebert, D., Jöns, K. D., Förstner, J., & Schumacher, S. (2023).
On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs.
Advanced Quantum Technologies, 7(1), Article 2300142. https://doi.org/10.1002/qute.202300142
bibtex: '@article{Bauch_Siebert_Jöns_Förstner_Schumacher_2023, title={On‐Demand
Indistinguishable and Entangled Photons Using Tailored Cavity Designs}, volume={7},
DOI={10.1002/qute.202300142},
number={12300142}, journal={Advanced Quantum Technologies}, publisher={Wiley},
author={Bauch, David and Siebert, Dustin and Jöns, Klaus D. and Förstner, Jens
and Schumacher, Stefan}, year={2023} }'
chicago: Bauch, David, Dustin Siebert, Klaus D. Jöns, Jens Förstner, and Stefan
Schumacher. “On‐Demand Indistinguishable and Entangled Photons Using Tailored
Cavity Designs.” Advanced Quantum Technologies 7, no. 1 (2023). https://doi.org/10.1002/qute.202300142.
ieee: 'D. Bauch, D. Siebert, K. D. Jöns, J. Förstner, and S. Schumacher, “On‐Demand
Indistinguishable and Entangled Photons Using Tailored Cavity Designs,” Advanced
Quantum Technologies, vol. 7, no. 1, Art. no. 2300142, 2023, doi: 10.1002/qute.202300142.'
mla: Bauch, David, et al. “On‐Demand Indistinguishable and Entangled Photons Using
Tailored Cavity Designs.” Advanced Quantum Technologies, vol. 7, no. 1,
2300142, Wiley, 2023, doi:10.1002/qute.202300142.
short: D. Bauch, D. Siebert, K.D. Jöns, J. Förstner, S. Schumacher, Advanced Quantum
Technologies 7 (2023).
date_created: 2025-09-12T11:11:56Z
date_updated: 2025-09-12T11:16:12Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '642'
- _id: '61'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '429'
- _id: '27'
- _id: '623'
doi: 10.1002/qute.202300142
intvolume: ' 7'
issue: '1'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '55'
name: TRR 142 - Project Area B
- _id: '56'
name: TRR 142 - Project Area C
- _id: '167'
name: 'TRR 142; TP B06: Ultraschnelle kohärente opto-elektronische Kontrolle eines
photonischen Quantensystems'
- _id: '173'
name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
bei Telekom Wellenlängen'
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: Advanced Quantum Technologies
publication_identifier:
issn:
- 2511-9044
- 2511-9044
publication_status: published
publisher: Wiley
status: public
title: On‐Demand Indistinguishable and Entangled Photons Using Tailored Cavity Designs
type: journal_article
user_id: '16199'
volume: 7
year: '2023'
...
---
_id: '63043'
abstract:
- lang: eng
text: Spatial modes of light have become highly attractive to increase the dimension
and, thereby, security and information capacity in quantum key distribution (QKD).
So far, only transverse electric field components have been considered, while
longitudinal polarization components have remained neglected. Here, we present
an approach to include all three spatial dimensions of electric field oscillation
in QKD by implementing our tunable, on-a-chip vector beam decoder (VBD). This
inversely designed device pioneers the "preparation" and "measurement" of three-dimensionally
polarized mutually unbiased basis states for high-dimensional (HD) QKD and paves
the way for the integration of HD QKD with spatial modes in multifunctional on-a-chip
photonics platforms.
citation:
ama: Tunable vector beam decoder by inverse design for high-dimensional quantum
key distribution with 3D polarized spatial modes. Published online 2023. doi:10.48550/ARXIV.2304.12296
apa: Tunable vector beam decoder by inverse design for high-dimensional quantum
key distribution with 3D polarized spatial modes. (2023). https://doi.org/10.48550/ARXIV.2304.12296
bibtex: '@article{Tunable vector beam decoder by inverse design for high-dimensional
quantum key distribution with 3D polarized spatial modes_2023, DOI={10.48550/ARXIV.2304.12296},
year={2023} }'
chicago: “Tunable Vector Beam Decoder by Inverse Design for High-Dimensional Quantum
Key Distribution with 3D Polarized Spatial Modes,” 2023. https://doi.org/10.48550/ARXIV.2304.12296.
ieee: '“Tunable vector beam decoder by inverse design for high-dimensional quantum
key distribution with 3D polarized spatial modes,” 2023, doi: 10.48550/ARXIV.2304.12296.'
mla: Tunable Vector Beam Decoder by Inverse Design for High-Dimensional Quantum
Key Distribution with 3D Polarized Spatial Modes. 2023, doi:10.48550/ARXIV.2304.12296.
short: (2023).
date_created: 2025-12-11T20:37:08Z
date_updated: 2025-12-11T20:46:50Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
doi: 10.48550/ARXIV.2304.12296
status: public
title: Tunable vector beam decoder by inverse design for high-dimensional quantum
key distribution with 3D polarized spatial modes
type: journal_article
user_id: '112030'
year: '2023'
...
---
_id: '57556'
abstract:
- lang: eng
text: 'AbstractMathematical modelling emphasizes
the connection between mathematics and reality — still, tasks are often exclusively
introduced inside the classroom. The paper examines the potential of different
task settings for mathematical modelling with real objects: outdoors at the real
object itself, with photographs and with a 3D model representation. It is the
aim of the study to analyze how far the mathematical modelling steps of students
solving the tasks differ in comparison to the settings and representations. In
a qualitative study, 19 lower secondary school students worked on tasks of all
three settings in a Latin square design. Their working processes in the settings
are compared with a special focus on the modelling steps Simplifying and Structuring,
as well as Mathematizing. The analysis by means of activity diagrams and a qualitative
content analysis shows that both steps are particularly relevant when students
work with real objects — independent from the three settings. Still, differences
in the actual activities could be observed in the students’ discussion on the
appropriateness of a model and in dealing with inaccuracies at the real object.
In addition, the process of data collection shows different procedures depending
on the setting which presents each of them as an enrichment for the acquisition
of modelling skills.'
author:
- first_name: Simone
full_name: Jablonski, Simone
last_name: Jablonski
citation:
ama: Jablonski S. Is it all about the setting? — A comparison of mathematical modelling
with real objects and their representation. Educational Studies in Mathematics.
2023;113(2):307-330. doi:10.1007/s10649-023-10215-2
apa: Jablonski, S. (2023). Is it all about the setting? — A comparison of mathematical
modelling with real objects and their representation. Educational Studies in
Mathematics, 113(2), 307–330. https://doi.org/10.1007/s10649-023-10215-2
bibtex: '@article{Jablonski_2023, title={Is it all about the setting? — A comparison
of mathematical modelling with real objects and their representation}, volume={113},
DOI={10.1007/s10649-023-10215-2},
number={2}, journal={Educational Studies in Mathematics}, publisher={Springer
Science and Business Media LLC}, author={Jablonski, Simone}, year={2023}, pages={307–330}
}'
chicago: 'Jablonski, Simone. “Is It All about the Setting? — A Comparison of Mathematical
Modelling with Real Objects and Their Representation.” Educational Studies
in Mathematics 113, no. 2 (2023): 307–30. https://doi.org/10.1007/s10649-023-10215-2.'
ieee: 'S. Jablonski, “Is it all about the setting? — A comparison of mathematical
modelling with real objects and their representation,” Educational Studies
in Mathematics, vol. 113, no. 2, pp. 307–330, 2023, doi: 10.1007/s10649-023-10215-2.'
mla: Jablonski, Simone. “Is It All about the Setting? — A Comparison of Mathematical
Modelling with Real Objects and Their Representation.” Educational Studies
in Mathematics, vol. 113, no. 2, Springer Science and Business Media LLC,
2023, pp. 307–30, doi:10.1007/s10649-023-10215-2.
short: S. Jablonski, Educational Studies in Mathematics 113 (2023) 307–330.
date_created: 2024-12-04T10:46:14Z
date_updated: 2025-12-17T08:56:50Z
doi: 10.1007/s10649-023-10215-2
intvolume: ' 113'
issue: '2'
language:
- iso: eng
page: 307-330
publication: Educational Studies in Mathematics
publication_identifier:
issn:
- 0013-1954
- 1573-0816
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Is it all about the setting? — A comparison of mathematical modelling with
real objects and their representation
type: journal_article
user_id: '111489'
volume: 113
year: '2023'
...
---
_id: '57558'
abstract:
- lang: eng
text: 'AbstractMathematical modelling emphasizes
the connection between mathematics and reality — still, tasks are often exclusively
introduced inside the classroom. The paper examines the potential of different
task settings for mathematical modelling with real objects: outdoors at the real
object itself, with photographs and with a 3D model representation. It is the
aim of the study to analyze how far the mathematical modelling steps of students
solving the tasks differ in comparison to the settings and representations. In
a qualitative study, 19 lower secondary school students worked on tasks of all
three settings in a Latin square design. Their working processes in the settings
are compared with a special focus on the modelling steps Simplifying and Structuring,
as well as Mathematizing. The analysis by means of activity diagrams and a qualitative
content analysis shows that both steps are particularly relevant when students
work with real objects — independent from the three settings. Still, differences
in the actual activities could be observed in the students’ discussion on the
appropriateness of a model and in dealing with inaccuracies at the real object.
In addition, the process of data collection shows different procedures depending
on the setting which presents each of them as an enrichment for the acquisition
of modelling skills.'
author:
- first_name: Simone
full_name: Jablonski, Simone
last_name: Jablonski
citation:
ama: Jablonski S. Is it all about the setting? — A comparison of mathematical modelling
with real objects and their representation. Educational Studies in Mathematics.
2023;113(2):307-330. doi:10.1007/s10649-023-10215-2
apa: Jablonski, S. (2023). Is it all about the setting? — A comparison of mathematical
modelling with real objects and their representation. Educational Studies in
Mathematics, 113(2), 307–330. https://doi.org/10.1007/s10649-023-10215-2
bibtex: '@article{Jablonski_2023, title={Is it all about the setting? — A comparison
of mathematical modelling with real objects and their representation}, volume={113},
DOI={10.1007/s10649-023-10215-2},
number={2}, journal={Educational Studies in Mathematics}, publisher={Springer
Science and Business Media LLC}, author={Jablonski, Simone}, year={2023}, pages={307–330}
}'
chicago: 'Jablonski, Simone. “Is It All about the Setting? — A Comparison of Mathematical
Modelling with Real Objects and Their Representation.” Educational Studies
in Mathematics 113, no. 2 (2023): 307–30. https://doi.org/10.1007/s10649-023-10215-2.'
ieee: 'S. Jablonski, “Is it all about the setting? — A comparison of mathematical
modelling with real objects and their representation,” Educational Studies
in Mathematics, vol. 113, no. 2, pp. 307–330, 2023, doi: 10.1007/s10649-023-10215-2.'
mla: Jablonski, Simone. “Is It All about the Setting? — A Comparison of Mathematical
Modelling with Real Objects and Their Representation.” Educational Studies
in Mathematics, vol. 113, no. 2, Springer Science and Business Media LLC,
2023, pp. 307–30, doi:10.1007/s10649-023-10215-2.
short: S. Jablonski, Educational Studies in Mathematics 113 (2023) 307–330.
date_created: 2024-12-04T10:46:36Z
date_updated: 2024-12-04T10:47:00Z
doi: 10.1007/s10649-023-10215-2
intvolume: ' 113'
issue: '2'
language:
- iso: eng
page: 307-330
publication: Educational Studies in Mathematics
publication_identifier:
issn:
- 0013-1954
- 1573-0816
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Is it all about the setting? — A comparison of mathematical modelling with
real objects and their representation
type: journal_article
user_id: '111489'
volume: 113
year: '2023'
...
---
_id: '47009'
abstract:
- lang: eng
text: We present a fully integrated radio frequency identifications transponder
chip operating at 5.8 GHz, which is compatible with the class-1 generation-2 of
the Electronic Product Code protocol (EPC-C1 G2). The tag chip including the analog
front-end and the digital baseband processor, are designed in the sub-threshold
regime (0.5 V) with a total supply current of less than 50 μA. As a power scavenging
unit, a single-stage differential-drive rectifier structure is designed and fabricated
with standard threshold voltage (SVT) MOS elements in a commercial 65-nm CMOS
process, to provide 0.8 V of rectified voltage. Measurements performed on the
fabricated single-stage structure show a maximum power conversion efficiency of
69.6% for a 22 kΩ load and a sensitivity of -12.5 dBm, which corresponds to more
than 1 m of reading range. The power conversion efficiency at this range is about
64%.
author:
- first_name: Sanaz
full_name: Haddadian, Sanaz
id: '59648'
last_name: Haddadian
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- first_name: Gerd
full_name: von Bögel, Gerd
last_name: von Bögel
- first_name: Thorben
full_name: Grenter, Thorben
last_name: Grenter
citation:
ama: Haddadian S, Scheytt JC, von Bögel G, Grenter T. A Sub-Threshold Microwave
RFID Tag Chip, Compatible With RFID MIMO Reader Technology. IEEE Journal of
Radio Frequency Identification. Published online 2023. doi:10.1109/JRFID.2023.3308332
apa: Haddadian, S., Scheytt, J. C., von Bögel, G., & Grenter, T. (2023). A Sub-Threshold
Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology. IEEE
Journal of Radio Frequency Identification. https://doi.org/10.1109/JRFID.2023.3308332
bibtex: '@article{Haddadian_Scheytt_von Bögel_Grenter_2023, title={A Sub-Threshold
Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology}, DOI={10.1109/JRFID.2023.3308332},
journal={ IEEE Journal of Radio Frequency Identification}, publisher={IEEE}, author={Haddadian,
Sanaz and Scheytt, J. Christoph and von Bögel, Gerd and Grenter, Thorben}, year={2023}
}'
chicago: Haddadian, Sanaz, J. Christoph Scheytt, Gerd von Bögel, and Thorben Grenter.
“A Sub-Threshold Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology.”
IEEE Journal of Radio Frequency Identification, 2023. https://doi.org/10.1109/JRFID.2023.3308332.
ieee: 'S. Haddadian, J. C. Scheytt, G. von Bögel, and T. Grenter, “A Sub-Threshold
Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology,” IEEE
Journal of Radio Frequency Identification, 2023, doi: 10.1109/JRFID.2023.3308332.'
mla: Haddadian, Sanaz, et al. “A Sub-Threshold Microwave RFID Tag Chip, Compatible
With RFID MIMO Reader Technology.” IEEE Journal of Radio Frequency Identification,
IEEE, 2023, doi:10.1109/JRFID.2023.3308332.
short: S. Haddadian, J.C. Scheytt, G. von Bögel, T. Grenter, IEEE Journal of Radio
Frequency Identification (2023).
conference:
start_date: 2023-08-29
date_created: 2023-09-13T11:08:22Z
date_updated: 2025-02-13T14:24:24Z
department:
- _id: '58'
doi: 10.1109/JRFID.2023.3308332
language:
- iso: eng
publication: ' IEEE Journal of Radio Frequency Identification'
publication_identifier:
eissn:
- 2469-7281
publication_status: published
publisher: IEEE
status: public
title: A Sub-Threshold Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology
type: journal_article
user_id: '59648'
year: '2023'
...
---
_id: '58680'
abstract:
- lang: eng
text: 'Heutige On-Board-Ladewandler sind typischerweise aus zwei Stufen aufgebaut,
die über einen Spannungszwischenkreis verbunden sind. Als erste Stufe kommt ein
PFC-Gleichrichter zum Einsatz, der die Anforderungen an den Netzstrom bezüglich
Oberschwingungsgehalt und Leistungsfaktor sicherstellt. Für die zweite Wandler-Stufe
hat sich in den vergangenen Jahren ein LLC-Resonanzwandler qualifiziert, der die
Ladeleistung an die Traktionsbatterie galvanisch getrennt überträgt. Der Zwischenkreis
besteht aus einer Bank von Elektrolytkondensatoren, in denen die pulsierende Eingangsleistung
zwischengespeichert wird. Die Kondensatoren machen einen erheblichen Teil des
Lader-Volumens aus und altern schnell, was insbesondere für Ladewandler an Bord
von Elektrofahrzeugen unerwünscht ist. In der vorliegenden Arbeit wird untersucht,
ob diese zweistufige Struktur verworfen werden kann, indem der LLC-Resonanzwandler
direkt an die gleichgerichtete Netzspannung angeschlossen wird.Zum Einsatz des
LLC-Resonanzwandlers als einstufiger Ladewandler ist die Schaltung für einen großen
Strom- und Spannungsbereich auszulegen. Hierfür wird in der vorliegenden Arbeit
eine erweiterte Zeitbereichsanalyse erarbeitet, deren hohe Modellierungsgenauigkeit
im Anschluss experimentell nachgewiesen wird. Mit Hilfe dieser Zeitbereichsanalyse
werden die Belastungsgrößen des Resonanzwandlers berechnet, um hiermit eine Vorauswahl
der Schaltungsparameter treffen zu können. Darauf aufbauend erfolgt die Optimierung
des integrierten Transformators als Schlüsselkomponente des Ladewandlers sowie
dessen prototypische Realisierung. Abschließend wird mittels Prototypen die erzielbare
Leistungsdichte ermittelt. Ergebnis: Verglichen mit etablierten Ladewandlern der
heutigen Elektrofahrzeuge konnte durch den einstufigen Ansatz die Leistungsdichte
um ca. 53% gesteigert werden.'
- lang: eng
text: 'Today''s on-board chargers of electric vehicles typically consist of two
stages which are connected via a voltage DC link. A PFC rectifier is used as the
first stage which ensures that the requirements for the mains current are met
with respect to harmonic content and power factor. For the second converter stage,
an LLC resonant converter has qualified in recent years which transmits the charging
power to the traction battery in a galvanically isolated manner. The DC link consists
of a bank of electrolytic capacitors in which the pulsating input power is buffered.
The capacitors occupy a large portion of the charger volume and age rapidly, which
is particularly undesirable for on-board chargers in electric vehicles. In the
presented work, it is investigated whether this two-stage structure can be discarded
by connecting the LLC resonant converter directly to the rectified line voltage.To
use the LLC resonant converter as a single-stage charger, the circuit must be
designed for a wide current and voltage range. For this purpose, an extended time-domain
analysis is developed in this thesis, whose high modeling accuracy is subsequently
demonstrated experimentally. With the help of this time domain analysis, the stress
variables of the resonant converter are calculated in order to be able to make
a preselection of the circuit parameters. Based on this, the optimization of the
integrated transformer as a key component of the charger is carried out as well
as its prototypical realization. Finally, the achievable power density is determined
by means of prototypes. Result: Compared to established on-board chargers of today''s
electric vehicles, the single-stage approach increased the power density by about
53%.'
author:
- first_name: Lukas
full_name: Keuck, Lukas
id: '42519'
last_name: Keuck
citation:
ama: Keuck L. Entwurf Eines Einstufigen Ladewandlers Auf Basis Eines LLC-Resonanzwandlers.
LibreCat University; 2023. doi:10.17619/UNIPB/1-1727
apa: Keuck, L. (2023). Entwurf eines einstufigen Ladewandlers auf Basis eines
LLC-Resonanzwandlers. LibreCat University. https://doi.org/10.17619/UNIPB/1-1727
bibtex: '@book{Keuck_2023, title={Entwurf eines einstufigen Ladewandlers auf Basis
eines LLC-Resonanzwandlers}, DOI={10.17619/UNIPB/1-1727},
publisher={LibreCat University}, author={Keuck, Lukas}, year={2023} }'
chicago: Keuck, Lukas. Entwurf Eines Einstufigen Ladewandlers Auf Basis Eines
LLC-Resonanzwandlers. LibreCat University, 2023. https://doi.org/10.17619/UNIPB/1-1727.
ieee: L. Keuck, Entwurf eines einstufigen Ladewandlers auf Basis eines LLC-Resonanzwandlers.
LibreCat University, 2023.
mla: Keuck, Lukas. Entwurf Eines Einstufigen Ladewandlers Auf Basis Eines LLC-Resonanzwandlers.
LibreCat University, 2023, doi:10.17619/UNIPB/1-1727.
short: L. Keuck, Entwurf Eines Einstufigen Ladewandlers Auf Basis Eines LLC-Resonanzwandlers,
LibreCat University, 2023.
date_created: 2025-02-18T09:05:22Z
date_updated: 2025-02-18T09:06:48Z
department:
- _id: '52'
doi: 10.17619/UNIPB/1-1727
language:
- iso: eng
publisher: LibreCat University
status: public
title: Entwurf eines einstufigen Ladewandlers auf Basis eines LLC-Resonanzwandlers
type: dissertation
user_id: '71353'
year: '2023'
...
---
_id: '46426'
abstract:
- lang: eng
text: 'One of the main challenges for next generation automotive radars is the improvement
of angular resolution to a sub-degree level. In this context, wide aperture automotive
radars of 1m length or more and resolution close to 0.1° in azimuth and 0.5° in
elevation could be beneficial. To enable coherent processing of arrays with such
large aperture, prior (i.e offline) and online calibration are necessary: channel
imbalances (gains and phases) and three dimensional coordinates of transmit and
receive elements need to be determined. We propose a calibration strategy based
on alternating steps between the two subtasks of i) channel imbalance estimation
with ‘known’ array positions, by applying a singular value decomposition to the
resulting tensor calculus problem; and ii) antenna position estimation with ’known’
channel imbalances, by numerically maximizing the Bayesian posterior probability;
in both cases operating on range/Doppler snapshots of disjoint targets (with potentially
unknown locations). Simulation studies based on the parameters of a MIMO 8x6 linear
sparse array show promising results as long as the initial position errors do
not exceed half a wavelength (2mm), beyond which we observe strong effects of
ambiguity. Experimental results with real measurements show that after calibration
in laboratory conditions, our MIMO 8x6 demonstrator with 50cm aperture is able
to resolve two targets at the same range with angular separation at least as close
as 0.4°.'
author:
- first_name: 'Christian '
full_name: 'Greiff, Christian '
last_name: Greiff
- first_name: David
full_name: Mateos-Núñez, David
last_name: Mateos-Núñez
- first_name: Renato
full_name: Simoni, Renato
last_name: Simoni
- first_name: Maria
full_name: González-Huici, Maria
last_name: González-Huici
- first_name: Stephan
full_name: Kruse, Stephan
id: '38254'
last_name: Kruse
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- first_name: Karl
full_name: Kolk, Karl
last_name: Kolk
- first_name: Christian
full_name: Höller, Christian
last_name: Höller
- first_name: Heiko Gustav
full_name: Kurz, Heiko Gustav
last_name: Kurz
- first_name: Marc-Michael
full_name: Meinecke, Marc-Michael
last_name: Meinecke
- first_name: Thomas
full_name: Gisder, Thomas
last_name: Gisder
citation:
ama: 'Greiff C, Mateos-Núñez D, Simoni R, et al. Calibration of Large Coherent MIMO
Radar Arrays: Channel Imbalances and 3D Antenna Positions. In: 2023 24th International
Radar Symposium (IRS). IEEE; 2023. doi:10.23919/IRS57608.2023.10172475'
apa: 'Greiff, C., Mateos-Núñez, D., Simoni, R., González-Huici, M., Kruse, S., Scheytt,
J. C., Kolk, K., Höller, C., Kurz, H. G., Meinecke, M.-M., & Gisder, T. (2023).
Calibration of Large Coherent MIMO Radar Arrays: Channel Imbalances and 3D Antenna
Positions. 2023 24th International Radar Symposium (IRS). 2023 24th International
Radar Symposium (IRS), Berlin, Germany. https://doi.org/10.23919/IRS57608.2023.10172475'
bibtex: '@inproceedings{Greiff_Mateos-Núñez_Simoni_González-Huici_Kruse_Scheytt_Kolk_Höller_Kurz_Meinecke_et
al._2023, title={Calibration of Large Coherent MIMO Radar Arrays: Channel Imbalances
and 3D Antenna Positions}, DOI={10.23919/IRS57608.2023.10172475},
booktitle={2023 24th International Radar Symposium (IRS)}, publisher={IEEE}, author={Greiff,
Christian and Mateos-Núñez, David and Simoni, Renato and González-Huici, Maria
and Kruse, Stephan and Scheytt, J. Christoph and Kolk, Karl and Höller, Christian
and Kurz, Heiko Gustav and Meinecke, Marc-Michael and et al.}, year={2023} }'
chicago: 'Greiff, Christian , David Mateos-Núñez, Renato Simoni, Maria González-Huici,
Stephan Kruse, J. Christoph Scheytt, Karl Kolk, et al. “Calibration of Large Coherent
MIMO Radar Arrays: Channel Imbalances and 3D Antenna Positions.” In 2023 24th
International Radar Symposium (IRS). IEEE, 2023. https://doi.org/10.23919/IRS57608.2023.10172475.'
ieee: 'C. Greiff et al., “Calibration of Large Coherent MIMO Radar Arrays:
Channel Imbalances and 3D Antenna Positions,” presented at the 2023 24th International
Radar Symposium (IRS), Berlin, Germany, 2023, doi: 10.23919/IRS57608.2023.10172475.'
mla: 'Greiff, Christian, et al. “Calibration of Large Coherent MIMO Radar Arrays:
Channel Imbalances and 3D Antenna Positions.” 2023 24th International Radar
Symposium (IRS), IEEE, 2023, doi:10.23919/IRS57608.2023.10172475.'
short: 'C. Greiff, D. Mateos-Núñez, R. Simoni, M. González-Huici, S. Kruse, J.C.
Scheytt, K. Kolk, C. Höller, H.G. Kurz, M.-M. Meinecke, T. Gisder, in: 2023 24th
International Radar Symposium (IRS), IEEE, 2023.'
conference:
end_date: 2023.05.26
location: Berlin, Germany
name: 2023 24th International Radar Symposium (IRS)
start_date: 2023.05.24
date_created: 2023-08-07T06:45:11Z
date_updated: 2025-02-25T05:52:16Z
department:
- _id: '58'
doi: 10.23919/IRS57608.2023.10172475
language:
- iso: eng
publication: 2023 24th International Radar Symposium (IRS)
publication_identifier:
eisbn:
- 978-3-944976-34-1
publisher: IEEE
status: public
title: 'Calibration of Large Coherent MIMO Radar Arrays: Channel Imbalances and 3D
Antenna Positions'
type: conference
user_id: '38254'
year: '2023'
...
---
_id: '47064'
author:
- first_name: Mohammed
full_name: Iftekhar, Mohammed
id: '47944'
last_name: Iftekhar
- first_name: Harshan
full_name: Nagaraju, Harshan
last_name: Nagaraju
- first_name: Pascal
full_name: Kneuper, Pascal
id: '47367'
last_name: Kneuper
- first_name: Babak
full_name: Sadiye, Babak
id: '93634'
last_name: Sadiye
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: 'Iftekhar M, Nagaraju H, Kneuper P, Sadiye B, Müller W, Scheytt JC. A 28-Gb/s
27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery in 22 nm FD-SOI CMOS Technology
. In: BCICTS 2023 IEEE BiCMOS and Compound Semiconductor Integrated Circuits
and Technology Symposium. ; 2023.'
apa: Iftekhar, M., Nagaraju, H., Kneuper, P., Sadiye, B., Müller, W., & Scheytt,
J. C. (2023). A 28-Gb/s 27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery
in 22 nm FD-SOI CMOS Technology . BCICTS 2023 IEEE BiCMOS and Compound Semiconductor
Integrated Circuits and Technology Symposium.
bibtex: '@inproceedings{Iftekhar_Nagaraju_Kneuper_Sadiye_Müller_Scheytt_2023, title={A
28-Gb/s 27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery in 22 nm FD-SOI
CMOS Technology }, booktitle={BCICTS 2023 IEEE BiCMOS and Compound Semiconductor
Integrated Circuits and Technology Symposium}, author={Iftekhar, Mohammed and
Nagaraju, Harshan and Kneuper, Pascal and Sadiye, Babak and Müller, Wolfgang and
Scheytt, J. Christoph}, year={2023} }'
chicago: Iftekhar, Mohammed, Harshan Nagaraju, Pascal Kneuper, Babak Sadiye, Wolfgang
Müller, and J. Christoph Scheytt. “A 28-Gb/s 27.2 MW NRZ Full-Rate Bang-Bang Clock
and Data Recovery in 22 Nm FD-SOI CMOS Technology .” In BCICTS 2023 IEEE BiCMOS
and Compound Semiconductor Integrated Circuits and Technology Symposium, 2023.
ieee: M. Iftekhar, H. Nagaraju, P. Kneuper, B. Sadiye, W. Müller, and J. C. Scheytt,
“A 28-Gb/s 27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery in 22 nm FD-SOI
CMOS Technology ,” MONTEREY, CALIFORNIA, USA, 2023.
mla: Iftekhar, Mohammed, et al. “A 28-Gb/s 27.2 MW NRZ Full-Rate Bang-Bang Clock
and Data Recovery in 22 Nm FD-SOI CMOS Technology .” BCICTS 2023 IEEE BiCMOS
and Compound Semiconductor Integrated Circuits and Technology Symposium, 2023.
short: 'M. Iftekhar, H. Nagaraju, P. Kneuper, B. Sadiye, W. Müller, J.C. Scheytt,
in: BCICTS 2023 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and
Technology Symposium, 2023.'
conference:
end_date: 2023-10-18
location: MONTEREY, CALIFORNIA, USA
start_date: 2023-10-15
date_created: 2023-09-14T11:30:36Z
date_updated: 2025-02-26T14:41:53Z
department:
- _id: '58'
language:
- iso: eng
publication: BCICTS 2023 IEEE BiCMOS and Compound Semiconductor Integrated Circuits
and Technology Symposium
related_material:
link:
- relation: contains
url: https://bcicts.org/
status: public
title: 'A 28-Gb/s 27.2 mW NRZ Full-Rate Bang-Bang Clock and Data Recovery in 22 nm
FD-SOI CMOS Technology '
type: conference_abstract
user_id: '15931'
year: '2023'
...
---
_id: '60355'
abstract:
- lang: eng
text: We present a method for the generation of higher-order tetrahedral
meshes. In contrast to previous methods, the curved tetrahedral elements are guaranteed
to be free of degeneracies and inversions while conforming exactly to prescribed
piecewise polynomial surfaces, such as domain boundaries or material interfaces.
Arbitrary polynomial order is supported. Algorithmically, the polynomial input
surfaces are first covered by a single layer of carefully constructed curved elements
using a recursive refinement procedure that provably avoids degeneracies and inversions.
These tetrahedral elements are designed such that the remaining space is bounded
piecewise linearly. In this way, our method effectively reduces the curved meshing
problem to the classical problem of linear mesh generation (for the remaining
space).
author:
- first_name: Payam
full_name: Khanteimouri, Payam
last_name: Khanteimouri
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
citation:
ama: 'Khanteimouri P, Campen M. 3D Bézier Guarding: Boundary-Conforming Curved Tetrahedral
Meshing. ACM Transactions on Graphics. 2023;42(6):1-19. doi:10.1145/3618332'
apa: 'Khanteimouri, P., & Campen, M. (2023). 3D Bézier Guarding: Boundary-Conforming
Curved Tetrahedral Meshing. ACM Transactions on Graphics, 42(6),
1–19. https://doi.org/10.1145/3618332'
bibtex: '@article{Khanteimouri_Campen_2023, title={3D Bézier Guarding: Boundary-Conforming
Curved Tetrahedral Meshing}, volume={42}, DOI={10.1145/3618332},
number={6}, journal={ACM Transactions on Graphics}, publisher={Association for
Computing Machinery (ACM)}, author={Khanteimouri, Payam and Campen, Marcel}, year={2023},
pages={1–19} }'
chicago: 'Khanteimouri, Payam, and Marcel Campen. “3D Bézier Guarding: Boundary-Conforming
Curved Tetrahedral Meshing.” ACM Transactions on Graphics 42, no. 6 (2023):
1–19. https://doi.org/10.1145/3618332.'
ieee: 'P. Khanteimouri and M. Campen, “3D Bézier Guarding: Boundary-Conforming Curved
Tetrahedral Meshing,” ACM Transactions on Graphics, vol. 42, no. 6, pp.
1–19, 2023, doi: 10.1145/3618332.'
mla: 'Khanteimouri, Payam, and Marcel Campen. “3D Bézier Guarding: Boundary-Conforming
Curved Tetrahedral Meshing.” ACM Transactions on Graphics, vol. 42, no.
6, Association for Computing Machinery (ACM), 2023, pp. 1–19, doi:10.1145/3618332.'
short: P. Khanteimouri, M. Campen, ACM Transactions on Graphics 42 (2023) 1–19.
date_created: 2025-06-24T07:46:53Z
date_updated: 2025-07-14T12:46:54Z
department:
- _id: '969'
doi: 10.1145/3618332
extern: '1'
intvolume: ' 42'
issue: '6'
language:
- iso: eng
page: 1-19
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
- 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: '3D Bézier Guarding: Boundary-Conforming Curved Tetrahedral Meshing'
type: journal_article
user_id: '117512'
volume: 42
year: '2023'
...
---
_id: '60354'
abstract:
- lang: eng
text: We present a set of operators to perform modifications, in particular
collapses and splits, in volumetric cell complexes which are discretely embedded
in a background mesh. Topological integrity and geometric embedding validity are
carefully maintained. We apply these operators strategically to volumetric block
decompositions, so-called T-meshes or base complexes, in the context of hexahedral
mesh generation. This allows circumventing the expensive and unreliable global
volumetric remapping step in the versatile meshing pipeline based on 3D integer-grid
maps. In essence, we reduce this step to simpler local cube mapping problems,
for which reliable solutions are available. As a consequence, the robustness of
the mesh generation process is increased, especially when targeting coarse or
block-structured hexahedral meshes. We furthermore extend this pipeline to support
feature alignment constraints, and systematically respect these throughout, enabling
the generation of meshes that align to points, curves, and surfaces of special
interest, whether on the boundary or in the interior of the domain.
author:
- first_name: Hendrik
full_name: Brückler, Hendrik
id: '115694'
last_name: Brückler
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
citation:
ama: Brückler H, Campen M. Collapsing Embedded Cell Complexes for Safer Hexahedral
Meshing. ACM Transactions on Graphics. 2023;42(6):1-24. doi:10.1145/3618384
apa: Brückler, H., & Campen, M. (2023). Collapsing Embedded Cell Complexes for
Safer Hexahedral Meshing. ACM Transactions on Graphics, 42(6), 1–24.
https://doi.org/10.1145/3618384
bibtex: '@article{Brückler_Campen_2023, title={Collapsing Embedded Cell Complexes
for Safer Hexahedral Meshing}, volume={42}, DOI={10.1145/3618384},
number={6}, journal={ACM Transactions on Graphics}, publisher={Association for
Computing Machinery (ACM)}, author={Brückler, Hendrik and Campen, Marcel}, year={2023},
pages={1–24} }'
chicago: 'Brückler, Hendrik, and Marcel Campen. “Collapsing Embedded Cell Complexes
for Safer Hexahedral Meshing.” ACM Transactions on Graphics 42, no. 6 (2023):
1–24. https://doi.org/10.1145/3618384.'
ieee: 'H. Brückler and M. Campen, “Collapsing Embedded Cell Complexes for Safer
Hexahedral Meshing,” ACM Transactions on Graphics, vol. 42, no. 6, pp.
1–24, 2023, doi: 10.1145/3618384.'
mla: Brückler, Hendrik, and Marcel Campen. “Collapsing Embedded Cell Complexes for
Safer Hexahedral Meshing.” ACM Transactions on Graphics, vol. 42, no. 6,
Association for Computing Machinery (ACM), 2023, pp. 1–24, doi:10.1145/3618384.
short: H. Brückler, M. Campen, ACM Transactions on Graphics 42 (2023) 1–24.
date_created: 2025-06-24T07:45:44Z
date_updated: 2025-07-14T12:47:30Z
department:
- _id: '969'
doi: 10.1145/3618384
extern: '1'
intvolume: ' 42'
issue: '6'
language:
- iso: eng
page: 1-24
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
- 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: Collapsing Embedded Cell Complexes for Safer Hexahedral Meshing
type: journal_article
user_id: '117512'
volume: 42
year: '2023'
...
---
_id: '60335'
abstract:
- lang: eng
text: A method is presented to compute volumetric maps and parametrizations
of objects over 3D domains. As a key feature, continuity and bijectivity are ensured
by construction. Arbitrary objects of ball topology, represented as tetrahedral
meshes, are supported. Arbitrary convex as well as star-shaped domains are supported.
Full control over the boundary mapping is provided. The method is based on the
technique of simplicial foliations, generalized to a broader class of domain shapes
and applied adaptively in a novel localized manner. This increases flexibility
as well as efficiency over the state of the art, while maintaining reliability
in guaranteeing map bijectivity.
author:
- first_name: Steffen
full_name: Hinderink, Steffen
id: '116615'
last_name: Hinderink
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
citation:
ama: 'Hinderink S, Campen M. Galaxy Maps: Localized Foliations for Bijective Volumetric
Mapping. ACM Transactions on Graphics. 2023;42(4):1-16. doi:10.1145/3592410'
apa: 'Hinderink, S., & Campen, M. (2023). Galaxy Maps: Localized Foliations
for Bijective Volumetric Mapping. ACM Transactions on Graphics, 42(4),
1–16. https://doi.org/10.1145/3592410'
bibtex: '@article{Hinderink_Campen_2023, title={Galaxy Maps: Localized Foliations
for Bijective Volumetric Mapping}, volume={42}, DOI={10.1145/3592410},
number={4}, journal={ACM Transactions on Graphics}, publisher={Association for
Computing Machinery (ACM)}, author={Hinderink, Steffen and Campen, Marcel}, year={2023},
pages={1–16} }'
chicago: 'Hinderink, Steffen, and Marcel Campen. “Galaxy Maps: Localized Foliations
for Bijective Volumetric Mapping.” ACM Transactions on Graphics 42, no.
4 (2023): 1–16. https://doi.org/10.1145/3592410.'
ieee: 'S. Hinderink and M. Campen, “Galaxy Maps: Localized Foliations for Bijective
Volumetric Mapping,” ACM Transactions on Graphics, vol. 42, no. 4, pp.
1–16, 2023, doi: 10.1145/3592410.'
mla: 'Hinderink, Steffen, and Marcel Campen. “Galaxy Maps: Localized Foliations
for Bijective Volumetric Mapping.” ACM Transactions on Graphics, vol. 42,
no. 4, Association for Computing Machinery (ACM), 2023, pp. 1–16, doi:10.1145/3592410.'
short: S. Hinderink, M. Campen, ACM Transactions on Graphics 42 (2023) 1–16.
date_created: 2025-06-23T10:38:02Z
date_updated: 2025-07-14T12:48:12Z
department:
- _id: '969'
doi: 10.1145/3592410
extern: '1'
intvolume: ' 42'
issue: '4'
language:
- iso: eng
page: 1-16
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
- 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: 'Galaxy Maps: Localized Foliations for Bijective Volumetric Mapping'
type: journal_article
user_id: '117512'
volume: 42
year: '2023'
...
---
_id: '48012'
abstract:
- lang: eng
text: '3D printing is a well-established technology with rapidly increasing usage
scenarios both in the industry and consumer context. The growing popularity of
3D printing has also attracted security researchers, who have analyzed possibilities
for weakening 3D models or stealing intellectual property from 3D models. We extend
these important aspects and provide the first comprehensive security analysis
of 3D printing data formats. We performed our systematic study on the example
of the 3D Manufacturing Format (3MF), which offers a large variety of features
that could lead to critical attacks. Based on 3MF’s features, we systematized
three attack goals: Data Exfiltration (dex), Denial of Service, and UI Spoofing
(uis). We achieve these goals by exploiting the complexity of 3MF, which is based
on the Open Packaging Conventions (OPC) format and uses XML to define 3D models.
In total, our analysis led to 352 tests. To create and run these tests automatically,
we implemented an open-source tool named 3MF Analyzer (tool), which helped us
evaluate 20 applications.'
author:
- first_name: Jost
full_name: Rossel, Jost
id: '58331'
last_name: Rossel
orcid: 0000-0002-3182-4059
- first_name: Vladislav
full_name: Mladenov, Vladislav
last_name: Mladenov
- first_name: Juraj
full_name: Somorovsky, Juraj
id: '83504'
last_name: Somorovsky
orcid: 0000-0002-3593-7720
citation:
ama: 'Rossel J, Mladenov V, Somorovsky J. Security Analysis of the 3MF Data Format.
In: Proceedings of the 26th International Symposium on Research in Attacks,
Intrusions and Defenses. ACM; 2023. doi:10.1145/3607199.3607216'
apa: Rossel, J., Mladenov, V., & Somorovsky, J. (2023). Security Analysis of
the 3MF Data Format. Proceedings of the 26th International Symposium on Research
in Attacks, Intrusions and Defenses. 26th International Symposium on Research
in Attacks, Intrusions and Defenses, Hongkong. https://doi.org/10.1145/3607199.3607216
bibtex: '@inproceedings{Rossel_Mladenov_Somorovsky_2023, title={Security Analysis
of the 3MF Data Format}, DOI={10.1145/3607199.3607216},
booktitle={Proceedings of the 26th International Symposium on Research in Attacks,
Intrusions and Defenses}, publisher={ACM}, author={Rossel, Jost and Mladenov,
Vladislav and Somorovsky, Juraj}, year={2023} }'
chicago: Rossel, Jost, Vladislav Mladenov, and Juraj Somorovsky. “Security Analysis
of the 3MF Data Format.” In Proceedings of the 26th International Symposium
on Research in Attacks, Intrusions and Defenses. ACM, 2023. https://doi.org/10.1145/3607199.3607216.
ieee: 'J. Rossel, V. Mladenov, and J. Somorovsky, “Security Analysis of the 3MF
Data Format,” presented at the 26th International Symposium on Research in Attacks,
Intrusions and Defenses, Hongkong, 2023, doi: 10.1145/3607199.3607216.'
mla: Rossel, Jost, et al. “Security Analysis of the 3MF Data Format.” Proceedings
of the 26th International Symposium on Research in Attacks, Intrusions and Defenses,
ACM, 2023, doi:10.1145/3607199.3607216.
short: 'J. Rossel, V. Mladenov, J. Somorovsky, in: Proceedings of the 26th International
Symposium on Research in Attacks, Intrusions and Defenses, ACM, 2023.'
conference:
end_date: 2023-10-18
location: Hongkong
name: 26th International Symposium on Research in Attacks, Intrusions and Defenses
start_date: 2023-10-16
date_created: 2023-10-11T13:42:09Z
date_updated: 2025-07-16T11:06:49Z
ddc:
- '000'
department:
- _id: '632'
doi: 10.1145/3607199.3607216
file:
- access_level: open_access
content_type: application/pdf
creator: jrossel
date_created: 2023-10-16T03:48:08Z
date_updated: 2024-09-05T11:14:40Z
file_id: '48065'
file_name: Security_Analysis_of_the_3mf_Data_Format.pdf
file_size: 1054999
relation: main_file
file_date_updated: 2024-09-05T11:14:40Z
has_accepted_license: '1'
keyword:
- Data Format Security
- 3D Manufacturing Format
- 3D Printing
- Additive Manufacturing
language:
- iso: eng
main_file_link:
- url: https://dl.acm.org/doi/abs/10.1145/3607199.3607216
oa: '1'
publication: Proceedings of the 26th International Symposium on Research in Attacks,
Intrusions and Defenses
publication_status: published
publisher: ACM
quality_controlled: '1'
status: public
title: Security Analysis of the 3MF Data Format
type: conference
user_id: '58331'
year: '2023'
...