---
_id: '53974'
author:
- first_name: Seyed Mohsen
full_name: Mousavi, Seyed Mohsen
last_name: Mousavi
- first_name: Najmeh
full_name: Alikar, Najmeh
last_name: Alikar
- first_name: Madjid
full_name: Tavana, Madjid
id: '31858'
last_name: Tavana
- first_name: Debora
full_name: Di Caprio, Debora
last_name: Di Caprio
citation:
ama: Mousavi SM, Alikar N, Tavana M, Di Caprio D. An improved particle swarm optimization
model for solving homogeneous discounted series-parallel redundancy allocation
problems. Journal of Intelligent Manufacturing. 2019;30(3):1175-1194. doi:10.1007/s10845-017-1311-9
apa: Mousavi, S. M., Alikar, N., Tavana, M., & Di Caprio, D. (2019). An improved
particle swarm optimization model for solving homogeneous discounted series-parallel
redundancy allocation problems. Journal of Intelligent Manufacturing, 30(3),
1175–1194. https://doi.org/10.1007/s10845-017-1311-9
bibtex: '@article{Mousavi_Alikar_Tavana_Di Caprio_2019, title={An improved particle
swarm optimization model for solving homogeneous discounted series-parallel redundancy
allocation problems}, volume={30}, DOI={10.1007/s10845-017-1311-9},
number={3}, journal={Journal of Intelligent Manufacturing}, publisher={Springer
Science and Business Media LLC}, author={Mousavi, Seyed Mohsen and Alikar, Najmeh
and Tavana, Madjid and Di Caprio, Debora}, year={2019}, pages={1175–1194} }'
chicago: 'Mousavi, Seyed Mohsen, Najmeh Alikar, Madjid Tavana, and Debora Di Caprio.
“An Improved Particle Swarm Optimization Model for Solving Homogeneous Discounted
Series-Parallel Redundancy Allocation Problems.” Journal of Intelligent Manufacturing
30, no. 3 (2019): 1175–94. https://doi.org/10.1007/s10845-017-1311-9.'
ieee: 'S. M. Mousavi, N. Alikar, M. Tavana, and D. Di Caprio, “An improved particle
swarm optimization model for solving homogeneous discounted series-parallel redundancy
allocation problems,” Journal of Intelligent Manufacturing, vol. 30, no.
3, pp. 1175–1194, 2019, doi: 10.1007/s10845-017-1311-9.'
mla: Mousavi, Seyed Mohsen, et al. “An Improved Particle Swarm Optimization Model
for Solving Homogeneous Discounted Series-Parallel Redundancy Allocation Problems.”
Journal of Intelligent Manufacturing, vol. 30, no. 3, Springer Science
and Business Media LLC, 2019, pp. 1175–94, doi:10.1007/s10845-017-1311-9.
short: S.M. Mousavi, N. Alikar, M. Tavana, D. Di Caprio, Journal of Intelligent
Manufacturing 30 (2019) 1175–1194.
date_created: 2024-05-06T16:24:56Z
date_updated: 2024-05-06T16:38:51Z
department:
- _id: '277'
doi: 10.1007/s10845-017-1311-9
intvolume: ' 30'
issue: '3'
language:
- iso: eng
page: 1175-1194
publication: Journal of Intelligent Manufacturing
publication_identifier:
issn:
- 0956-5515
- 1572-8145
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: An improved particle swarm optimization model for solving homogeneous discounted
series-parallel redundancy allocation problems
type: journal_article
user_id: '51811'
volume: 30
year: '2019'
...
---
_id: '53969'
author:
- first_name: Vahid
full_name: Hajipour, Vahid
last_name: Hajipour
- first_name: Madjid
full_name: Tavana, Madjid
id: '31858'
last_name: Tavana
- first_name: Debora
full_name: Di Caprio, Debora
last_name: Di Caprio
- first_name: Majid
full_name: Akhgar, Majid
last_name: Akhgar
- first_name: Yasaman
full_name: Jabbari, Yasaman
last_name: Jabbari
citation:
ama: Hajipour V, Tavana M, Di Caprio D, Akhgar M, Jabbari Y. An optimization model
for traceable closed-loop supply chain networks. Applied Mathematical Modelling.
2019;71:673-699. doi:10.1016/j.apm.2019.03.007
apa: Hajipour, V., Tavana, M., Di Caprio, D., Akhgar, M., & Jabbari, Y. (2019).
An optimization model for traceable closed-loop supply chain networks. Applied
Mathematical Modelling, 71, 673–699. https://doi.org/10.1016/j.apm.2019.03.007
bibtex: '@article{Hajipour_Tavana_Di Caprio_Akhgar_Jabbari_2019, title={An optimization
model for traceable closed-loop supply chain networks}, volume={71}, DOI={10.1016/j.apm.2019.03.007},
journal={Applied Mathematical Modelling}, publisher={Elsevier BV}, author={Hajipour,
Vahid and Tavana, Madjid and Di Caprio, Debora and Akhgar, Majid and Jabbari,
Yasaman}, year={2019}, pages={673–699} }'
chicago: 'Hajipour, Vahid, Madjid Tavana, Debora Di Caprio, Majid Akhgar, and Yasaman
Jabbari. “An Optimization Model for Traceable Closed-Loop Supply Chain Networks.”
Applied Mathematical Modelling 71 (2019): 673–99. https://doi.org/10.1016/j.apm.2019.03.007.'
ieee: 'V. Hajipour, M. Tavana, D. Di Caprio, M. Akhgar, and Y. Jabbari, “An optimization
model for traceable closed-loop supply chain networks,” Applied Mathematical
Modelling, vol. 71, pp. 673–699, 2019, doi: 10.1016/j.apm.2019.03.007.'
mla: Hajipour, Vahid, et al. “An Optimization Model for Traceable Closed-Loop Supply
Chain Networks.” Applied Mathematical Modelling, vol. 71, Elsevier BV,
2019, pp. 673–99, doi:10.1016/j.apm.2019.03.007.
short: V. Hajipour, M. Tavana, D. Di Caprio, M. Akhgar, Y. Jabbari, Applied Mathematical
Modelling 71 (2019) 673–699.
date_created: 2024-05-06T16:21:37Z
date_updated: 2024-05-06T16:39:00Z
department:
- _id: '277'
doi: 10.1016/j.apm.2019.03.007
intvolume: ' 71'
language:
- iso: eng
page: 673-699
publication: Applied Mathematical Modelling
publication_identifier:
issn:
- 0307-904X
publication_status: published
publisher: Elsevier BV
status: public
title: An optimization model for traceable closed-loop supply chain networks
type: journal_article
user_id: '51811'
volume: 71
year: '2019'
...
---
_id: '46338'
abstract:
- lang: eng
text: We tackle a bi-objective dynamic orienteering problem where customer requests
arise as time passes by. The goal is to minimize the tour length traveled by a
single delivery vehicle while simultaneously keeping the number of dismissed dynamic
customers to a minimum. We propose a dynamic Evolutionary Multi-Objective Algorithm
which is grounded on insights gained from a previous series of work on an a-posteriori
version of the problem, where all request times are known in advance. In our experiments,
we simulate different decision maker strategies and evaluate the development of
the Pareto-front approximations on exemplary problem instances. It turns out,
that despite severely reduced computational budget and no oracle-knowledge of
request times the dynamic EMOA is capable of producing approximations which partially
dominate the results of the a-posteriori EMOA and dynamic integer linear programming
strategies.
author:
- first_name: Jakob
full_name: Bossek, Jakob
id: '102979'
last_name: Bossek
orcid: 0000-0002-4121-4668
- first_name: Christian
full_name: Grimme, Christian
last_name: Grimme
- first_name: Stephan
full_name: Meisel, Stephan
last_name: Meisel
- first_name: Günter
full_name: Rudolph, Günter
last_name: Rudolph
- first_name: Heike
full_name: Trautmann, Heike
id: '100740'
last_name: Trautmann
orcid: 0000-0002-9788-8282
citation:
ama: 'Bossek J, Grimme C, Meisel S, Rudolph G, Trautmann H. Bi-Objective Orienteering:
Towards a Dynamic Multi-Objective Evolutionary Algorithm. In: Deb K, Goodman E,
Coello CCA, et al., eds. Evolutionary Multi-Criterion Optimization (EMO).
Vol 11411. Lecture Notes in Computer Science. Springer International Publishing;
2019:516–528. doi:10.1007/978-3-030-12598-1_41'
apa: 'Bossek, J., Grimme, C., Meisel, S., Rudolph, G., & Trautmann, H. (2019).
Bi-Objective Orienteering: Towards a Dynamic Multi-Objective Evolutionary Algorithm.
In K. Deb, E. Goodman, C. C. A. Coello, K. Klamroth, K. Miettinen, S. Mostaghim,
& P. Reed (Eds.), Evolutionary Multi-Criterion Optimization (EMO) (Vol.
11411, pp. 516–528). Springer International Publishing. https://doi.org/10.1007/978-3-030-12598-1_41'
bibtex: '@inproceedings{Bossek_Grimme_Meisel_Rudolph_Trautmann_2019, place={East
Lansing, Michigan, USA}, series={Lecture Notes in Computer Science}, title={Bi-Objective
Orienteering: Towards a Dynamic Multi-Objective Evolutionary Algorithm}, volume={11411},
DOI={10.1007/978-3-030-12598-1_41},
booktitle={Evolutionary Multi-Criterion Optimization (EMO)}, publisher={Springer
International Publishing}, author={Bossek, Jakob and Grimme, Christian and Meisel,
Stephan and Rudolph, Günter and Trautmann, Heike}, editor={Deb, Kalyanmoy and
Goodman, Erik and Coello, Coello Carlos A. and Klamroth, Kathrin and Miettinen,
Kaisa and Mostaghim, Sanaz and Reed, Patrick}, year={2019}, pages={516–528}, collection={Lecture
Notes in Computer Science} }'
chicago: 'Bossek, Jakob, Christian Grimme, Stephan Meisel, Günter Rudolph, and Heike
Trautmann. “Bi-Objective Orienteering: Towards a Dynamic Multi-Objective Evolutionary
Algorithm.” In Evolutionary Multi-Criterion Optimization (EMO), edited
by Kalyanmoy Deb, Erik Goodman, Coello Carlos A. Coello, Kathrin Klamroth, Kaisa
Miettinen, Sanaz Mostaghim, and Patrick Reed, 11411:516–528. Lecture Notes in
Computer Science. East Lansing, Michigan, USA: Springer International Publishing,
2019. https://doi.org/10.1007/978-3-030-12598-1_41.'
ieee: 'J. Bossek, C. Grimme, S. Meisel, G. Rudolph, and H. Trautmann, “Bi-Objective
Orienteering: Towards a Dynamic Multi-Objective Evolutionary Algorithm,” in Evolutionary
Multi-Criterion Optimization (EMO), 2019, vol. 11411, pp. 516–528, doi: 10.1007/978-3-030-12598-1_41.'
mla: 'Bossek, Jakob, et al. “Bi-Objective Orienteering: Towards a Dynamic Multi-Objective
Evolutionary Algorithm.” Evolutionary Multi-Criterion Optimization (EMO),
edited by Kalyanmoy Deb et al., vol. 11411, Springer International Publishing,
2019, pp. 516–528, doi:10.1007/978-3-030-12598-1_41.'
short: 'J. Bossek, C. Grimme, S. Meisel, G. Rudolph, H. Trautmann, in: K. Deb, E.
Goodman, C.C.A. Coello, K. Klamroth, K. Miettinen, S. Mostaghim, P. Reed (Eds.),
Evolutionary Multi-Criterion Optimization (EMO), Springer International Publishing,
East Lansing, Michigan, USA, 2019, pp. 516–528.'
date_created: 2023-08-04T07:44:59Z
date_updated: 2024-06-10T12:00:05Z
department:
- _id: '34'
- _id: '819'
doi: 10.1007/978-3-030-12598-1_41
editor:
- first_name: Kalyanmoy
full_name: Deb, Kalyanmoy
last_name: Deb
- first_name: Erik
full_name: Goodman, Erik
last_name: Goodman
- first_name: Coello Carlos A.
full_name: Coello, Coello Carlos A.
last_name: Coello
- first_name: Kathrin
full_name: Klamroth, Kathrin
last_name: Klamroth
- first_name: Kaisa
full_name: Miettinen, Kaisa
last_name: Miettinen
- first_name: Sanaz
full_name: Mostaghim, Sanaz
last_name: Mostaghim
- first_name: Patrick
full_name: Reed, Patrick
last_name: Reed
intvolume: ' 11411'
language:
- iso: eng
page: 516–528
place: East Lansing, Michigan, USA
publication: Evolutionary Multi-Criterion Optimization (EMO)
publication_identifier:
isbn:
- 978-3-030-12597-4
publisher: Springer International Publishing
series_title: Lecture Notes in Computer Science
status: public
title: 'Bi-Objective Orienteering: Towards a Dynamic Multi-Objective Evolutionary
Algorithm'
type: conference
user_id: '15504'
volume: 11411
year: '2019'
...
---
_id: '46337'
abstract:
- lang: eng
text: A multiobjective perspective onto common performance measures such as the
PAR10 score or the expected runtime of single-objective stochastic solvers is
presented by directly investigating the tradeoff between the fraction of failed
runs and the average runtime. Multi-objective indicators operating in the bi-objective
space allow for an overall performance comparison on a set of instances paving
the way for instance-based automated algorithm selection techniques.
author:
- first_name: Jakob
full_name: Bossek, Jakob
id: '102979'
last_name: Bossek
orcid: 0000-0002-4121-4668
- first_name: Heike
full_name: Trautmann, Heike
id: '100740'
last_name: Trautmann
orcid: 0000-0002-9788-8282
citation:
ama: 'Bossek J, Trautmann H. Multi-Objective Performance Measurement: Alternatives
to PAR10 and Expected Running Time. In: Battiti R, Brunato M, Kotsireas I, Pardalos
P, eds. Learning and Intelligent Optimization. Vol 11353. Lecture Notes
in Computer Science. Springer; 2019:215–219.'
apa: 'Bossek, J., & Trautmann, H. (2019). Multi-Objective Performance Measurement:
Alternatives to PAR10 and Expected Running Time. In R. Battiti, M. Brunato, I.
Kotsireas, & P. Pardalos (Eds.), Learning and Intelligent Optimization
(Vol. 11353, pp. 215–219). Springer.'
bibtex: '@inproceedings{Bossek_Trautmann_2019, place={Cham}, series={Lecture Notes
in Computer Science}, title={Multi-Objective Performance Measurement: Alternatives
to PAR10 and Expected Running Time}, volume={11353}, booktitle={Learning and Intelligent
Optimization}, publisher={Springer}, author={Bossek, Jakob and Trautmann, Heike},
editor={Battiti, R and Brunato, M and Kotsireas, I and Pardalos, P}, year={2019},
pages={215–219}, collection={Lecture Notes in Computer Science} }'
chicago: 'Bossek, Jakob, and Heike Trautmann. “Multi-Objective Performance Measurement:
Alternatives to PAR10 and Expected Running Time.” In Learning and Intelligent
Optimization, edited by R Battiti, M Brunato, I Kotsireas, and P Pardalos,
11353:215–219. Lecture Notes in Computer Science. Cham: Springer, 2019.'
ieee: 'J. Bossek and H. Trautmann, “Multi-Objective Performance Measurement: Alternatives
to PAR10 and Expected Running Time,” in Learning and Intelligent Optimization,
2019, vol. 11353, pp. 215–219.'
mla: 'Bossek, Jakob, and Heike Trautmann. “Multi-Objective Performance Measurement:
Alternatives to PAR10 and Expected Running Time.” Learning and Intelligent
Optimization, edited by R Battiti et al., vol. 11353, Springer, 2019, pp.
215–219.'
short: 'J. Bossek, H. Trautmann, in: R. Battiti, M. Brunato, I. Kotsireas, P. Pardalos
(Eds.), Learning and Intelligent Optimization, Springer, Cham, 2019, pp. 215–219.'
date_created: 2023-08-04T07:44:10Z
date_updated: 2024-06-10T12:00:23Z
department:
- _id: '34'
- _id: '819'
editor:
- first_name: R
full_name: Battiti, R
last_name: Battiti
- first_name: M
full_name: Brunato, M
last_name: Brunato
- first_name: I
full_name: Kotsireas, I
last_name: Kotsireas
- first_name: P
full_name: Pardalos, P
last_name: Pardalos
intvolume: ' 11353'
language:
- iso: eng
page: 215–219
place: Cham
publication: Learning and Intelligent Optimization
publication_identifier:
isbn:
- 978-3-030-05347-5
publisher: Springer
series_title: Lecture Notes in Computer Science
status: public
title: 'Multi-Objective Performance Measurement: Alternatives to PAR10 and Expected
Running Time'
type: conference
user_id: '15504'
volume: 11353
year: '2019'
...
---
_id: '36846'
author:
- first_name: Anne
full_name: Kruse, Anne
id: '55833'
last_name: Kruse
- first_name: Michael
full_name: Mummert, Michael
last_name: Mummert
citation:
ama: Kruse A, Mummert M. Mit 3D-Druck umfassende Teilhabe möglich machen . Werkstatt:Dialog.
2019;(4):34-35.
apa: Kruse, A., & Mummert, M. (2019). Mit 3D-Druck umfassende Teilhabe möglich
machen . Werkstatt:Dialog, 4, 34–35.
bibtex: '@article{Kruse_Mummert_2019, title={Mit 3D-Druck umfassende Teilhabe möglich
machen }, number={4}, journal={Werkstatt:Dialog}, author={Kruse, Anne and Mummert,
Michael}, year={2019}, pages={34–35} }'
chicago: 'Kruse, Anne, and Michael Mummert. “Mit 3D-Druck umfassende Teilhabe möglich
machen .” Werkstatt:Dialog, no. 4 (2019): 34–35.'
ieee: A. Kruse and M. Mummert, “Mit 3D-Druck umfassende Teilhabe möglich machen
,” Werkstatt:Dialog, no. 4, pp. 34–35, 2019.
mla: Kruse, Anne, and Michael Mummert. “Mit 3D-Druck umfassende Teilhabe möglich
machen .” Werkstatt:Dialog, no. 4, 2019, pp. 34–35.
short: A. Kruse, M. Mummert, Werkstatt:Dialog (2019) 34–35.
date_created: 2023-01-16T07:05:06Z
date_updated: 2023-01-16T07:05:23Z
department:
- _id: '144'
- _id: '219'
issue: '4'
language:
- iso: ger
page: 34-35
publication: Werkstatt:Dialog
publication_identifier:
issn:
- 1864-2993
status: public
title: 'Mit 3D-Druck umfassende Teilhabe möglich machen '
type: journal_article
user_id: '55833'
year: '2019'
...
---
_id: '34124'
abstract:
- lang: ger
text: 'Es existieren bisher zahlreiche Studien, die das Potenzial von Augmented
Reality (AR) in verschiedenen Bildungsbereichen und seine Auswirkungen auf die
Lernenden hinsichtlich ihrer erhöhten Motivation, verbesserter Lernfähigkeit,
Konzentration auf das Thema usw. hervorheben. Dabei eignen sich AR-Anwendungen
sowohl für den Einsatz in formellen, als auch informellen Lernumgebungen und Bildungsinstitutionen,
beginnend mit Kunstkursen in Vorschulen über Biologie, Geschichte, Chemie, Physik
etc. in weiterführenden Schulen und Universitäten [1]. Trotz der steigenden Zahl
an Studien liegen nur wenigen AR-Anwendungen ein geeignetes didaktisches Konzept
zu Grunde. Ferner fehlen allgemeine Studien, die die lernfördernden Eigenschaften
von AR im Bereich der Vorbereitung und Begleitung von Laborpraktika untersuchen.
Aktuelle Anwendungen erweitern lediglich gedruckte Lerninhalte mit zusätzlichen
Links, Videos oder statischen 3D-Modellen oder benötigen spezielle Voraussetzung
für die Nutzung der AR-Anwendung [2]. Der vorliegende Beitrag untersucht und konzentriert
sich daher auf ein didaktisches Konzept für eine auf mobilen Geräten basierende
AR-Anwendung (App) zum Erwerb und zur Vertiefung praktischer Fertigkeiten im Umgang
mit elektrotechnischen Laborgeräten und -komponenten. In einer früheren Arbeit
wurden die Möglichkeiten und Grenzen der AR-Technologie in der Ingenieurausbildung
mit besonderem Fokus auf Laborarbeit untersucht, um häufige Fehler im Designkonzept
zu vermeiden. Das didaktische Grundkonzept beruht auf dem „Constructive Alignement“
nach Biggs [3] mit der Definition der drei obligatorischen Schritte: Lernziele,
Lehr- / Lernaktivitäten und Prüfungsmethoden. Die Lernziele werden – angelehnt
an die modifizierte Bloom-Taxonomie nach Anderson und Krathwohl [4] – weiter konkretisiert,
woraus dann im weiteren Schritt mögliche Lehrszenarien in AR gestaltet wurden.'
- lang: eng
text: "There have been numerous studies highlighting the potential of Augmented
Reality (AR) in different educational settings and its impacts on learners in
terms of increased motivation, learning, focus, and more. AR applications are
suitable for use in formal as well as informal learning environments and educational
institutions, starting with art courses in pre-schools or biology, history, chemistry,
physics etc. in secondary schools and universities. Despite the increasing number
of studies, only a few AR applications are based on a suitable didactic principle.
In addition, there is a lack of general studies investigating the learning-promoting
characteristics of AR in the field of preparation and conduction of laboratory
trainings. Current studies merely extend printed learning content with additional
links, videos, or static 3D models or require special prerequisites for using
the AR application.\r\nTherefore, this article examines and focuses on a design
concept for a mobile-based AR application (App) for acquiring and deepening practical
skills in handling laboratory equipment and components. In a previous work, the
possibilities and limitations of AR technology in engineering education, with
a particular focus on laboratory work, were investigated in order to avoid frequent
design mistakes. The didactic concept in this project is based on the constructive
alignment according to Biggs with the definition of the three compulsory steps:
learning objectives (or intended learning outcome), teaching / learning activities
and assessments. The learning objectives were further concretized in the next
step, based on the revised Bloom taxonomy according to Anderson and Krathwohl
to derive and design possible teaching scenarios in AR. "
author:
- first_name: Mesut
full_name: Alptekin, Mesut
id: '11763'
last_name: Alptekin
- first_name: Katrin
full_name: Temmen, Katrin
id: '30086'
last_name: Temmen
citation:
ama: 'Alptekin M, Temmen K. Posterbeitrag: Didaktisches Konzept Und Prototyp
Eines Auf Augmented Reality Basierenden Virtuellen Vorpraktikums in Der Elektrotechnik.
Gudrun Kammasch, Henning Klaf e, Sönke Knutzen (Hrsg.); 2019.'
apa: 'Alptekin, M., & Temmen, K. (2019). Posterbeitrag: Didaktisches Konzept
und Prototyp eines auf Augmented Reality basierenden virtuellen Vorpraktikums
in der Elektrotechnik. Gudrun Kammasch, Henning Klaf e, Sönke Knutzen (Hrsg.).'
bibtex: '@book{Alptekin_Temmen_2019, place={Universität Siegen}, series={Diversität
und Kulturelle Vielfalt - Differenzieren, Individualisieren - oder Integrieren?},
title={Posterbeitrag: Didaktisches Konzept und Prototyp eines auf Augmented Reality
basierenden virtuellen Vorpraktikums in der Elektrotechnik}, publisher={Gudrun
Kammasch, Henning Klaf e, Sönke Knutzen (Hrsg.)}, author={Alptekin, Mesut and
Temmen, Katrin}, year={2019}, collection={Diversität und Kulturelle Vielfalt -
Differenzieren, Individualisieren - oder Integrieren?} }'
chicago: 'Alptekin, Mesut, and Katrin Temmen. Posterbeitrag: Didaktisches Konzept
Und Prototyp Eines Auf Augmented Reality Basierenden Virtuellen Vorpraktikums
in Der Elektrotechnik. Diversität Und Kulturelle Vielfalt - Differenzieren,
Individualisieren - Oder Integrieren? Universität Siegen: Gudrun Kammasch, Henning
Klaf e, Sönke Knutzen (Hrsg.), 2019.'
ieee: 'M. Alptekin and K. Temmen, Posterbeitrag: Didaktisches Konzept und Prototyp
eines auf Augmented Reality basierenden virtuellen Vorpraktikums in der Elektrotechnik.
Universität Siegen: Gudrun Kammasch, Henning Klaf e, Sönke Knutzen (Hrsg.), 2019.'
mla: 'Alptekin, Mesut, and Katrin Temmen. Posterbeitrag: Didaktisches Konzept
Und Prototyp Eines Auf Augmented Reality Basierenden Virtuellen Vorpraktikums
in Der Elektrotechnik. Gudrun Kammasch, Henning Klaf e, Sönke Knutzen (Hrsg.),
2019.'
short: 'M. Alptekin, K. Temmen, Posterbeitrag: Didaktisches Konzept Und Prototyp
Eines Auf Augmented Reality Basierenden Virtuellen Vorpraktikums in Der Elektrotechnik,
Gudrun Kammasch, Henning Klaf e, Sönke Knutzen (Hrsg.), Universität Siegen, 2019.'
date_created: 2022-11-22T11:46:30Z
date_updated: 2023-01-18T14:33:24Z
department:
- _id: '34'
- _id: '300'
keyword:
- Augmented Reality
- Laborpraktikum
- didaktische Konzepte
- Constructive Alignment
language:
- iso: eng
place: Universität Siegen
publication_identifier:
unknown:
- 978-3-9818728-2-8
publisher: Gudrun Kammasch, Henning Klaf e, Sönke Knutzen (Hrsg.)
series_title: Diversität und Kulturelle Vielfalt - Differenzieren, Individualisieren
- oder Integrieren?
status: public
title: 'Posterbeitrag: Didaktisches Konzept und Prototyp eines auf Augmented Reality
basierenden virtuellen Vorpraktikums in der Elektrotechnik'
type: misc
user_id: '11763'
year: '2019'
...
---
_id: '40582'
author:
- first_name: R.J.
full_name: Sánchez-Leija, R.J.
last_name: Sánchez-Leija
- first_name: Nieves
full_name: Lopez Salas, Nieves
id: '98120'
last_name: Lopez Salas
orcid: https://orcid.org/0000-0002-8438-9548
- first_name: J.L.G.
full_name: Fierro, J.L.G.
last_name: Fierro
- first_name: M.C.
full_name: Gutiérrez, M.C.
last_name: Gutiérrez
- first_name: M.L.
full_name: Ferrer, M.L.
last_name: Ferrer
- first_name: J.D.
full_name: Mota-Morales, J.D.
last_name: Mota-Morales
- first_name: G.
full_name: Luna-Bárcenas, G.
last_name: Luna-Bárcenas
- first_name: F. del
full_name: Monte, F. del
last_name: Monte
citation:
ama: Sánchez-Leija RJ, Lopez Salas N, Fierro JLG, et al. Deep eutectic solvents
as active media for the preparation of highly conducting 3D free-standing PANI
xerogels and their derived N-doped and N-, P-codoped porous carbons. Carbon.
2019;146:813-826. doi:10.1016/j.carbon.2019.02.055
apa: Sánchez-Leija, R. J., Lopez Salas, N., Fierro, J. L. G., Gutiérrez, M. C.,
Ferrer, M. L., Mota-Morales, J. D., Luna-Bárcenas, G., & Monte, F. del. (2019).
Deep eutectic solvents as active media for the preparation of highly conducting
3D free-standing PANI xerogels and their derived N-doped and N-, P-codoped porous
carbons. Carbon, 146, 813–826. https://doi.org/10.1016/j.carbon.2019.02.055
bibtex: '@article{Sánchez-Leija_Lopez Salas_Fierro_Gutiérrez_Ferrer_Mota-Morales_Luna-Bárcenas_Monte_2019,
title={Deep eutectic solvents as active media for the preparation of highly conducting
3D free-standing PANI xerogels and their derived N-doped and N-, P-codoped porous
carbons}, volume={146}, DOI={10.1016/j.carbon.2019.02.055},
journal={Carbon}, publisher={Elsevier BV}, author={Sánchez-Leija, R.J. and Lopez
Salas, Nieves and Fierro, J.L.G. and Gutiérrez, M.C. and Ferrer, M.L. and Mota-Morales,
J.D. and Luna-Bárcenas, G. and Monte, F. del}, year={2019}, pages={813–826} }'
chicago: 'Sánchez-Leija, R.J., Nieves Lopez Salas, J.L.G. Fierro, M.C. Gutiérrez,
M.L. Ferrer, J.D. Mota-Morales, G. Luna-Bárcenas, and F. del Monte. “Deep Eutectic
Solvents as Active Media for the Preparation of Highly Conducting 3D Free-Standing
PANI Xerogels and Their Derived N-Doped and N-, P-Codoped Porous Carbons.” Carbon
146 (2019): 813–26. https://doi.org/10.1016/j.carbon.2019.02.055.'
ieee: 'R. J. Sánchez-Leija et al., “Deep eutectic solvents as active media
for the preparation of highly conducting 3D free-standing PANI xerogels and their
derived N-doped and N-, P-codoped porous carbons,” Carbon, vol. 146, pp.
813–826, 2019, doi: 10.1016/j.carbon.2019.02.055.'
mla: Sánchez-Leija, R. J., et al. “Deep Eutectic Solvents as Active Media for the
Preparation of Highly Conducting 3D Free-Standing PANI Xerogels and Their Derived
N-Doped and N-, P-Codoped Porous Carbons.” Carbon, vol. 146, Elsevier BV,
2019, pp. 813–26, doi:10.1016/j.carbon.2019.02.055.
short: R.J. Sánchez-Leija, N. Lopez Salas, J.L.G. Fierro, M.C. Gutiérrez, M.L. Ferrer,
J.D. Mota-Morales, G. Luna-Bárcenas, F. del Monte, Carbon 146 (2019) 813–826.
date_created: 2023-01-27T16:21:35Z
date_updated: 2023-01-27T16:28:42Z
doi: 10.1016/j.carbon.2019.02.055
intvolume: ' 146'
keyword:
- General Chemistry
- General Materials Science
language:
- iso: eng
page: 813-826
publication: Carbon
publication_identifier:
issn:
- 0008-6223
publication_status: published
publisher: Elsevier BV
status: public
title: Deep eutectic solvents as active media for the preparation of highly conducting
3D free-standing PANI xerogels and their derived N-doped and N-, P-codoped porous
carbons
type: journal_article
user_id: '98120'
volume: 146
year: '2019'
...
---
_id: '13297'
author:
- first_name: Sevag
full_name: Gharibian, Sevag
id: '71541'
last_name: Gharibian
orcid: 0000-0002-9992-3379
- first_name: Ojas
full_name: Parekh, Ojas
last_name: Parekh
citation:
ama: 'Gharibian S, Parekh O. Almost Optimal Classical Approximation Algorithms for
a Quantum Generalization of Max-Cut. In: Proceedings of the 22nd International
Workshop on Approximation Algorithms for Combinatorial Optimization Problems (APPROX).
Vol 145. Leibniz International Proceedings in Informatics (LIPIcs). ; 2019:31:1-31:17.
doi:10.4230/LIPICS.APPROX-RANDOM.2019.31'
apa: Gharibian, S., & Parekh, O. (2019). Almost Optimal Classical Approximation
Algorithms for a Quantum Generalization of Max-Cut. Proceedings of the 22nd
International Workshop on Approximation Algorithms for Combinatorial Optimization
Problems (APPROX), 145, 31:1-31:17. https://doi.org/10.4230/LIPICS.APPROX-RANDOM.2019.31
bibtex: '@inproceedings{Gharibian_Parekh_2019, series={Leibniz International Proceedings
in Informatics (LIPIcs)}, title={Almost Optimal Classical Approximation Algorithms
for a Quantum Generalization of Max-Cut}, volume={145}, DOI={10.4230/LIPICS.APPROX-RANDOM.2019.31},
booktitle={Proceedings of the 22nd International Workshop on Approximation Algorithms
for Combinatorial Optimization Problems (APPROX)}, author={Gharibian, Sevag and
Parekh, Ojas}, year={2019}, pages={31:1-31:17}, collection={Leibniz International
Proceedings in Informatics (LIPIcs)} }'
chicago: Gharibian, Sevag, and Ojas Parekh. “Almost Optimal Classical Approximation
Algorithms for a Quantum Generalization of Max-Cut.” In Proceedings of the
22nd International Workshop on Approximation Algorithms for Combinatorial Optimization
Problems (APPROX), 145:31:1-31:17. Leibniz International Proceedings in Informatics
(LIPIcs), 2019. https://doi.org/10.4230/LIPICS.APPROX-RANDOM.2019.31.
ieee: 'S. Gharibian and O. Parekh, “Almost Optimal Classical Approximation Algorithms
for a Quantum Generalization of Max-Cut,” in Proceedings of the 22nd International
Workshop on Approximation Algorithms for Combinatorial Optimization Problems (APPROX),
2019, vol. 145, p. 31:1-31:17, doi: 10.4230/LIPICS.APPROX-RANDOM.2019.31.'
mla: Gharibian, Sevag, and Ojas Parekh. “Almost Optimal Classical Approximation
Algorithms for a Quantum Generalization of Max-Cut.” Proceedings of the 22nd
International Workshop on Approximation Algorithms for Combinatorial Optimization
Problems (APPROX), vol. 145, 2019, p. 31:1-31:17, doi:10.4230/LIPICS.APPROX-RANDOM.2019.31.
short: 'S. Gharibian, O. Parekh, in: Proceedings of the 22nd International Workshop
on Approximation Algorithms for Combinatorial Optimization Problems (APPROX),
2019, p. 31:1-31:17.'
date_created: 2019-09-19T08:33:29Z
date_updated: 2023-02-28T11:05:46Z
department:
- _id: '623'
- _id: '7'
doi: 10.4230/LIPICS.APPROX-RANDOM.2019.31
intvolume: ' 145'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://drops.dagstuhl.de/opus/volltexte/2019/11246/
oa: '1'
page: 31:1-31:17
publication: Proceedings of the 22nd International Workshop on Approximation Algorithms
for Combinatorial Optimization Problems (APPROX)
publication_status: published
series_title: Leibniz International Proceedings in Informatics (LIPIcs)
status: public
title: Almost Optimal Classical Approximation Algorithms for a Quantum Generalization
of Max-Cut
type: conference
user_id: '71541'
volume: 145
year: '2019'
...
---
_id: '22202'
abstract:
- lang: eng
text: Structural parts for aviation have very high demands on the development and
production process. Therefore, the entire process must be considered in order
to produce high-quality AM metal parts. In this case study, a conventional part
was selected to be optimized for AM. The process presented includes component
selection, design improvement with a novel approach for topology optimization
based on the AMendate algorithm as basis of MSC Apex Generative Design,component
production on a SLM 250 HL and post-processing including heat treatment and surface
smoothing. With the topology optimization a weight reduction of ~60 % could be
realized, whereby the stress distribution is more homogeneous. Furthermore, the
challenges of support optimization and post-processing have to be addressed, in
order to produce competitive parts.
author:
- first_name: Sven Helge
full_name: Klippstein, Sven Helge
id: '71545'
last_name: Klippstein
- first_name: Anne
full_name: Duchting, Anne
last_name: Duchting
- first_name: Thomas
full_name: Reiher, Thomas
last_name: Reiher
- first_name: F.
full_name: Hengsbach, F.
last_name: Hengsbach
- first_name: Dennis
full_name: Menge, Dennis
id: '29240'
last_name: Menge
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
citation:
ama: 'Klippstein SH, Duchting A, Reiher T, Hengsbach F, Menge D, Schmid H-J. Devolopment,
Production and post-processing of a topology optimized aircraft bracket . In:
30th Annual International Solid Freeform Fabrication Symposium. Vol 30.
; 2019:1932-1945.'
apa: Klippstein, S. H., Duchting, A., Reiher, T., Hengsbach, F., Menge, D., &
Schmid, H.-J. (2019). Devolopment, Production and post-processing of a topology
optimized aircraft bracket . 30th Annual International Solid Freeform Fabrication
Symposium, 30, 1932–1945.
bibtex: '@inproceedings{Klippstein_Duchting_Reiher_Hengsbach_Menge_Schmid_2019,
title={Devolopment, Production and post-processing of a topology optimized aircraft
bracket }, volume={30}, booktitle={30th Annual International Solid Freeform Fabrication
Symposium}, author={Klippstein, Sven Helge and Duchting, Anne and Reiher, Thomas
and Hengsbach, F. and Menge, Dennis and Schmid, Hans-Joachim}, year={2019}, pages={1932–1945}
}'
chicago: Klippstein, Sven Helge, Anne Duchting, Thomas Reiher, F. Hengsbach, Dennis
Menge, and Hans-Joachim Schmid. “Devolopment, Production and Post-Processing of
a Topology Optimized Aircraft Bracket .” In 30th Annual International Solid
Freeform Fabrication Symposium, 30:1932–45, 2019.
ieee: S. H. Klippstein, A. Duchting, T. Reiher, F. Hengsbach, D. Menge, and H.-J.
Schmid, “Devolopment, Production and post-processing of a topology optimized aircraft
bracket ,” in 30th Annual International Solid Freeform Fabrication Symposium,
2019, vol. 30, pp. 1932–1945.
mla: Klippstein, Sven Helge, et al. “Devolopment, Production and Post-Processing
of a Topology Optimized Aircraft Bracket .” 30th Annual International Solid
Freeform Fabrication Symposium, vol. 30, 2019, pp. 1932–45.
short: 'S.H. Klippstein, A. Duchting, T. Reiher, F. Hengsbach, D. Menge, H.-J. Schmid,
in: 30th Annual International Solid Freeform Fabrication Symposium, 2019, pp.
1932–1945.'
date_created: 2021-05-14T07:46:35Z
date_updated: 2023-03-27T20:06:22Z
department:
- _id: '150'
- _id: '624'
- _id: '219'
intvolume: ' 30'
language:
- iso: eng
main_file_link:
- url: https://repositories.lib.utexas.edu/bitstream/handle/2152/90529/2019-160-Klippstein.pdf?sequence=2
page: 1932-1945
publication: 30th Annual International Solid Freeform Fabrication Symposium
quality_controlled: '1'
status: public
title: 'Devolopment, Production and post-processing of a topology optimized aircraft
bracket '
type: conference
user_id: '71545'
volume: 30
year: '2019'
...
---
_id: '25908'
abstract:
- lang: eng
text: Herein we present a new proton-conducting iron(II) metal–organic framework
(MOF) of an unusual structure formed by chains of alternating bistriazolate-p-benzoquinone
anions and iron(II) cations with four axially coordinated water molecules. These
chains assemble via π–π stacking between the aromatic units to form a three-dimensional
grid-like network with channel pores filled with water molecules. The material
was structurally characterized by single-crystal XRD analysis, and its water and
thermal stability was investigated. The proton conductivity was studied by impedance
measurements on needle-like single crystals. A simple but efficient measurement
setup consisting of interdigital electrodes was used. The influence of the crystal
orientation, temperature, and humidity was investigated. The iron(II)-MOF showed
the highest proton conductivity of 3.3·10–3 S cm–1 at 22 °C and 94% relative humidity.
Contrary to most known structures, the conductivity in this material is controlled
by chemical properties of the pore system rather than by grain boundaries. The
presented material is the starting point for further tailoring the proton-conducting
properties, independent of morphological features which could find potential applications
as membrane materials in proton-exchange membrane fuel cells.
article_type: original
author:
- first_name: Hana
full_name: Bunzen, Hana
last_name: Bunzen
- first_name: Ali
full_name: Javed, Ali
last_name: Javed
- first_name: Danielle
full_name: Klawinski, Danielle
last_name: Klawinski
- first_name: Anton
full_name: Lamp, Anton
last_name: Lamp
- first_name: Maciej
full_name: Grzywa, Maciej
last_name: Grzywa
- first_name: Andreas
full_name: Kalytta-Mewes, Andreas
last_name: Kalytta-Mewes
- first_name: Michael
full_name: Tiemann, Michael
id: '23547'
last_name: Tiemann
orcid: 0000-0003-1711-2722
- first_name: Hans-Albrecht Krug
full_name: von Nidda, Hans-Albrecht Krug
last_name: von Nidda
- first_name: Thorsten
full_name: Wagner, Thorsten
last_name: Wagner
- first_name: Dirk
full_name: Volkmer, Dirk
last_name: Volkmer
citation:
ama: Bunzen H, Javed A, Klawinski D, et al. Anisotropic Water-Mediated Proton Conductivity
in Large Iron(II) Metal–Organic Framework Single Crystals for Proton-Exchange
Membrane Fuel Cells. ACS Applied Nano Materials. Published online 2019:291-298.
doi:10.1021/acsanm.8b01902
apa: Bunzen, H., Javed, A., Klawinski, D., Lamp, A., Grzywa, M., Kalytta-Mewes,
A., Tiemann, M., von Nidda, H.-A. K., Wagner, T., & Volkmer, D. (2019). Anisotropic
Water-Mediated Proton Conductivity in Large Iron(II) Metal–Organic Framework Single
Crystals for Proton-Exchange Membrane Fuel Cells. ACS Applied Nano Materials,
291–298. https://doi.org/10.1021/acsanm.8b01902
bibtex: '@article{Bunzen_Javed_Klawinski_Lamp_Grzywa_Kalytta-Mewes_Tiemann_von Nidda_Wagner_Volkmer_2019,
title={Anisotropic Water-Mediated Proton Conductivity in Large Iron(II) Metal–Organic
Framework Single Crystals for Proton-Exchange Membrane Fuel Cells}, DOI={10.1021/acsanm.8b01902},
journal={ACS Applied Nano Materials}, author={Bunzen, Hana and Javed, Ali and
Klawinski, Danielle and Lamp, Anton and Grzywa, Maciej and Kalytta-Mewes, Andreas
and Tiemann, Michael and von Nidda, Hans-Albrecht Krug and Wagner, Thorsten and
Volkmer, Dirk}, year={2019}, pages={291–298} }'
chicago: Bunzen, Hana, Ali Javed, Danielle Klawinski, Anton Lamp, Maciej Grzywa,
Andreas Kalytta-Mewes, Michael Tiemann, Hans-Albrecht Krug von Nidda, Thorsten
Wagner, and Dirk Volkmer. “Anisotropic Water-Mediated Proton Conductivity in Large
Iron(II) Metal–Organic Framework Single Crystals for Proton-Exchange Membrane
Fuel Cells.” ACS Applied Nano Materials, 2019, 291–98. https://doi.org/10.1021/acsanm.8b01902.
ieee: 'H. Bunzen et al., “Anisotropic Water-Mediated Proton Conductivity
in Large Iron(II) Metal–Organic Framework Single Crystals for Proton-Exchange
Membrane Fuel Cells,” ACS Applied Nano Materials, pp. 291–298, 2019, doi:
10.1021/acsanm.8b01902.'
mla: Bunzen, Hana, et al. “Anisotropic Water-Mediated Proton Conductivity in Large
Iron(II) Metal–Organic Framework Single Crystals for Proton-Exchange Membrane
Fuel Cells.” ACS Applied Nano Materials, 2019, pp. 291–98, doi:10.1021/acsanm.8b01902.
short: H. Bunzen, A. Javed, D. Klawinski, A. Lamp, M. Grzywa, A. Kalytta-Mewes,
M. Tiemann, H.-A.K. von Nidda, T. Wagner, D. Volkmer, ACS Applied Nano Materials
(2019) 291–298.
date_created: 2021-10-08T10:46:06Z
date_updated: 2023-03-08T08:30:01Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.1021/acsanm.8b01902
language:
- iso: eng
page: 291-298
publication: ACS Applied Nano Materials
publication_identifier:
issn:
- 2574-0970
- 2574-0970
publication_status: published
quality_controlled: '1'
status: public
title: Anisotropic Water-Mediated Proton Conductivity in Large Iron(II) Metal–Organic
Framework Single Crystals for Proton-Exchange Membrane Fuel Cells
type: journal_article
user_id: '23547'
year: '2019'
...
---
_id: '43748'
abstract:
- lang: eng
text: The fundamental interband absorption in gallium arsenide shows a strong blue
shift when biased by mid-infrared transients exceeding 10 MV/cm. This subcycle
feature is induced by the localization of electronic wavefunctions from 3D to
2D.
article_number: '05001'
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Johannes
full_name: Bühler, Johannes
last_name: Bühler
- first_name: Christian
full_name: Schmidt, Christian
last_name: Schmidt
- first_name: Alexander-Cornelius
full_name: Heinrich, Alexander-Cornelius
last_name: Heinrich
- first_name: Jonas
full_name: Allerbeck, Jonas
last_name: Allerbeck
- first_name: Reinold
full_name: Podzimski, Reinold
last_name: Podzimski
- first_name: Daniel
full_name: Berghoff, Daniel
last_name: Berghoff
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
last_name: Schmidt
- first_name: Christian
full_name: Reichl, Christian
last_name: Reichl
- first_name: Werner
full_name: Wegscheider, Werner
last_name: Wegscheider
- first_name: Daniele
full_name: Brida, Daniele
last_name: Brida
- first_name: Alfred
full_name: Leitenstorfer, Alfred
last_name: Leitenstorfer
citation:
ama: 'Meier T, Bühler J, Schmidt C, et al. Subcycle Wannier-Stark Localization by
Mid-Infrared Bias in Gallium Arsenide. In: XXI International Conference on
Ultrafast Phenomena 2018 (UP 2018). Vol 205. EPJ Web Conf. EDP Sciences; 2019.
doi:10.1051/epjconf/201920505001'
apa: Meier, T., Bühler, J., Schmidt, C., Heinrich, A.-C., Allerbeck, J., Podzimski,
R., Berghoff, D., Schmidt, W. G., Reichl, C., Wegscheider, W., Brida, D., &
Leitenstorfer, A. (2019). Subcycle Wannier-Stark Localization by Mid-Infrared
Bias in Gallium Arsenide. XXI International Conference on Ultrafast Phenomena
2018 (UP 2018), 205, Article 05001. https://doi.org/10.1051/epjconf/201920505001
bibtex: '@inproceedings{Meier_Bühler_Schmidt_Heinrich_Allerbeck_Podzimski_Berghoff_Schmidt_Reichl_Wegscheider_et
al._2019, series={EPJ Web Conf.}, title={Subcycle Wannier-Stark Localization by
Mid-Infrared Bias in Gallium Arsenide}, volume={205}, DOI={10.1051/epjconf/201920505001},
number={05001}, booktitle={XXI International Conference on Ultrafast Phenomena
2018 (UP 2018)}, publisher={EDP Sciences}, author={Meier, Torsten and Bühler,
Johannes and Schmidt, Christian and Heinrich, Alexander-Cornelius and Allerbeck,
Jonas and Podzimski, Reinold and Berghoff, Daniel and Schmidt, Wolf Gero and Reichl,
Christian and Wegscheider, Werner and et al.}, year={2019}, collection={EPJ Web
Conf.} }'
chicago: Meier, Torsten, Johannes Bühler, Christian Schmidt, Alexander-Cornelius
Heinrich, Jonas Allerbeck, Reinold Podzimski, Daniel Berghoff, et al. “Subcycle
Wannier-Stark Localization by Mid-Infrared Bias in Gallium Arsenide.” In XXI
International Conference on Ultrafast Phenomena 2018 (UP 2018), Vol. 205.
EPJ Web Conf. EDP Sciences, 2019. https://doi.org/10.1051/epjconf/201920505001.
ieee: 'T. Meier et al., “Subcycle Wannier-Stark Localization by Mid-Infrared
Bias in Gallium Arsenide,” in XXI International Conference on Ultrafast Phenomena
2018 (UP 2018), 2019, vol. 205, doi: 10.1051/epjconf/201920505001.'
mla: Meier, Torsten, et al. “Subcycle Wannier-Stark Localization by Mid-Infrared
Bias in Gallium Arsenide.” XXI International Conference on Ultrafast Phenomena
2018 (UP 2018), vol. 205, 05001, EDP Sciences, 2019, doi:10.1051/epjconf/201920505001.
short: 'T. Meier, J. Bühler, C. Schmidt, A.-C. Heinrich, J. Allerbeck, R. Podzimski,
D. Berghoff, W.G. Schmidt, C. Reichl, W. Wegscheider, D. Brida, A. Leitenstorfer,
in: XXI International Conference on Ultrafast Phenomena 2018 (UP 2018), EDP Sciences,
2019.'
date_created: 2023-04-16T03:59:29Z
date_updated: 2023-04-21T11:30:15Z
department:
- _id: '293'
- _id: '230'
- _id: '35'
- _id: '15'
- _id: '170'
doi: 10.1051/epjconf/201920505001
intvolume: ' 205'
language:
- iso: eng
main_file_link:
- url: https://www.epj-conferences.org/articles/epjconf/abs/2019/10/epjconf_up2019_05001/epjconf_up2019_05001.html
publication: XXI International Conference on Ultrafast Phenomena 2018 (UP 2018)
publication_status: published
publisher: EDP Sciences
series_title: EPJ Web Conf.
status: public
title: Subcycle Wannier-Stark Localization by Mid-Infrared Bias in Gallium Arsenide
type: conference
user_id: '16199'
volume: 205
year: '2019'
...
---
_id: '22441'
abstract:
- lang: eng
text: According to ISO / ASTM 52900, additive manufacturing (AM) is defined as "the
process of joining materials to make parts from 3D model data, usually layer upon
layer, as opposed to conventional manufacturing including subtractive manufacturing
technologies and formative manufacturing methodologies” [1]. This results in significant
advantages over conventional manufacturing methodologies, such as the production
of topologically optimized, complex structures, lower material consumption or
shorter product development cycles. In order to be able to use these advantages,
the possibilities and restrictions of the processes must be known. In particular,
selective laser beam melting (SLM), in which a powdery metallic starting material
is melted by means of a laser, requires a sound understanding of the process.
For this purpose, design guidelines have been presented in various scientific
papers. These design guidelines help to design a component in such a way that
it can be manufactured successfully using additive manufacturing. These so-called
“AMsuitable design guidelines” can be found among others at Adam, Kranz and Thomas
[2,3,4,5]. In contrast to established manufacturing processes, the post-processing
of additive components is divided into two steps. First, the AM immanent post
processing, such as the removing of the component from the building platform or
the removing of the remaining powder. These post-processing steps are in the following
referred to “post-processing”. Secondly, the subsequent post-processing steps
to improve the component properties, such as milling and turning or a stress-relief
annealing. These are referred to as “finishing” and form the focus of this paper.
With regard to a successful finishing of additively manufactured components, design
guidelines must be taken into account that consider the finishing inherent restrictions
and possibilities. In the following, these design guidelines are referred to “finishing
suitable”. They can deviate significantly from those of conventionally manufactured
components in the case of additively manufactured components. Although there are
some investigations that deal with the post-processing of additively manufactured
components [6,7], there are hardly any design guidelines that are suitable for
finishing [8]. Therefore, knowledge about the finishing of additively manufactured
components is based on experimental experience rather than on scientific knowledge.
For this reason, design guidelines for a finishing suitable design must be methodically
determined and quantified. These quantified design guidelines can be used for
an automated design check on complex components like topology optimized geometries.
author:
- first_name: Stefan
full_name: Lammers, Stefan
id: '13835'
last_name: Lammers
- first_name: Johannes
full_name: Tominski, Johannes
last_name: Tominski
- first_name: Detmar
full_name: Zimmer, Detmar
id: '604'
last_name: Zimmer
citation:
ama: 'Lammers S, Tominski J, Zimmer D. Guidelines for post processing oriented design
of additive manufactured parts for use in topology optimization. In: II International
Conference on Simulation for Additive Manufacturing Sim-AM 2019 11-13 September,
2019. ; 2019:174-185. doi:http://congress.cimne.com/sim-am2019/frontal/doc/EbookSim-AM2019.pdf'
apa: Lammers, S., Tominski, J., & Zimmer, D. (2019). Guidelines for post processing
oriented design of additive manufactured parts for use in topology optimization.
II International Conference on Simulation for Additive Manufacturing Sim-AM
2019 11-13 September, 2019, 174–185. http://congress.cimne.com/sim-am2019/frontal/doc/EbookSim-AM2019.pdf
bibtex: '@inproceedings{Lammers_Tominski_Zimmer_2019, title={Guidelines for post
processing oriented design of additive manufactured parts for use in topology
optimization}, DOI={http://congress.cimne.com/sim-am2019/frontal/doc/EbookSim-AM2019.pdf},
booktitle={II International Conference on Simulation for Additive Manufacturing
Sim-AM 2019 11-13 September, 2019}, author={Lammers, Stefan and Tominski, Johannes
and Zimmer, Detmar}, year={2019}, pages={174–185} }'
chicago: Lammers, Stefan, Johannes Tominski, and Detmar Zimmer. “Guidelines for
Post Processing Oriented Design of Additive Manufactured Parts for Use in Topology
Optimization.” In II International Conference on Simulation for Additive Manufacturing
Sim-AM 2019 11-13 September, 2019, 174–85, 2019. http://congress.cimne.com/sim-am2019/frontal/doc/EbookSim-AM2019.pdf.
ieee: 'S. Lammers, J. Tominski, and D. Zimmer, “Guidelines for post processing oriented
design of additive manufactured parts for use in topology optimization,” in II
International Conference on Simulation for Additive Manufacturing Sim-AM 2019
11-13 September, 2019, 2019, pp. 174–185, doi: http://congress.cimne.com/sim-am2019/frontal/doc/EbookSim-AM2019.pdf.'
mla: Lammers, Stefan, et al. “Guidelines for Post Processing Oriented Design of
Additive Manufactured Parts for Use in Topology Optimization.” II International
Conference on Simulation for Additive Manufacturing Sim-AM 2019 11-13 September,
2019, 2019, pp. 174–85, doi:http://congress.cimne.com/sim-am2019/frontal/doc/EbookSim-AM2019.pdf.
short: 'S. Lammers, J. Tominski, D. Zimmer, in: II International Conference on Simulation
for Additive Manufacturing Sim-AM 2019 11-13 September, 2019, 2019, pp. 174–185.'
date_created: 2021-06-15T11:10:15Z
date_updated: 2023-05-04T07:26:59Z
department:
- _id: '9'
- _id: '146'
- _id: '219'
- _id: '624'
doi: http://congress.cimne.com/sim-am2019/frontal/doc/EbookSim-AM2019.pdf
language:
- iso: eng
page: 174-185
publication: II International Conference on Simulation for Additive Manufacturing
Sim-AM 2019 11-13 September, 2019
publication_identifier:
isbn:
- 978-84-949194-8-0
quality_controlled: '1'
status: public
title: Guidelines for post processing oriented design of additive manufactured parts
for use in topology optimization
type: conference
user_id: '13835'
year: '2019'
...
---
_id: '23907'
abstract:
- lang: eng
text: One of the strategies employed to lower weight and to decrease material
consumption is reducing part thickness itself. Thus, functionally graded materials
in which structural reinforcement is adjusted locally, are of great interest.
With regard to conventional industrial processes, such as extrusion or flexible
cold rolling, thickness variations can only be achieved either longitudinally
or through the cross-section of the semi-finished products. Hence, a combined
thickness variation (along both axes) is difficult to generate solely by extrusion
or rolling. A simultaneous thickness variation in both directions, however, would
enable further weight savings in structural components such as car body parts.
In this study, a promising approach with extruded shapes, serving as a billet
for a flexible hot rolling process, is elaborated upon. By employing the described
process modification, shapes with simultaneous thickness variations in longitudinal
as well as in transverse direction are feasible. Initial numerical analysis reveals
the weight-saving potential of using these semi-finished products for structural
parts in a car body. A demonstration of the production process for the semi-finished
parts and the occurring challenges are discussed. To verify and adjust the new
technology, a numerical model of the flexible hot rolling process has been created
based on the finite element software QForm VX. This model is also employed for
tool design optimization to produce semi-finished components with the required
geometrical quality. Finally, the results of hot rolling experiments conducted
using the adjusted roll design are presented.
author:
- first_name: Olexandr
full_name: Grydin, Olexandr
id: '43822'
last_name: Grydin
- first_name: Nikolay
full_name: Sotirov, Nikolay
last_name: Sotirov
- first_name: Andrii
full_name: Samsonenko, Andrii
last_name: Samsonenko
- first_name: Nikolay
full_name: Biba, Nikolay
last_name: Biba
- first_name: Anatolii
full_name: Andreiev, Anatolii
id: '50215'
last_name: Andreiev
- first_name: Mykhailo
full_name: Stolbchenko, Mykhailo
last_name: Stolbchenko
- first_name: Teresa
full_name: Behr, Teresa
last_name: Behr
- first_name: Iaroslav
full_name: Frolov, Iaroslav
last_name: Frolov
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: Grydin O, Sotirov N, Samsonenko A, et al. Flexible Hot Rolling of Extruded
Shapes of Aluminum Alloy EN AW-6082. Materials Science Forum. Published
online 2019:85-92. doi:10.4028/www.scientific.net/msf.949.85
apa: Grydin, O., Sotirov, N., Samsonenko, A., Biba, N., Andreiev, A., Stolbchenko,
M., Behr, T., Frolov, I., & Schaper, M. (2019). Flexible Hot Rolling of Extruded
Shapes of Aluminum Alloy EN AW-6082. Materials Science Forum, 85–92. https://doi.org/10.4028/www.scientific.net/msf.949.85
bibtex: '@article{Grydin_Sotirov_Samsonenko_Biba_Andreiev_Stolbchenko_Behr_Frolov_Schaper_2019,
title={Flexible Hot Rolling of Extruded Shapes of Aluminum Alloy EN AW-6082},
DOI={10.4028/www.scientific.net/msf.949.85},
journal={Materials Science Forum}, author={Grydin, Olexandr and Sotirov, Nikolay
and Samsonenko, Andrii and Biba, Nikolay and Andreiev, Anatolii and Stolbchenko,
Mykhailo and Behr, Teresa and Frolov, Iaroslav and Schaper, Mirko}, year={2019},
pages={85–92} }'
chicago: Grydin, Olexandr, Nikolay Sotirov, Andrii Samsonenko, Nikolay Biba, Anatolii
Andreiev, Mykhailo Stolbchenko, Teresa Behr, Iaroslav Frolov, and Mirko Schaper.
“Flexible Hot Rolling of Extruded Shapes of Aluminum Alloy EN AW-6082.” Materials
Science Forum, 2019, 85–92. https://doi.org/10.4028/www.scientific.net/msf.949.85.
ieee: 'O. Grydin et al., “Flexible Hot Rolling of Extruded Shapes of Aluminum
Alloy EN AW-6082,” Materials Science Forum, pp. 85–92, 2019, doi: 10.4028/www.scientific.net/msf.949.85.'
mla: Grydin, Olexandr, et al. “Flexible Hot Rolling of Extruded Shapes of Aluminum
Alloy EN AW-6082.” Materials Science Forum, 2019, pp. 85–92, doi:10.4028/www.scientific.net/msf.949.85.
short: O. Grydin, N. Sotirov, A. Samsonenko, N. Biba, A. Andreiev, M. Stolbchenko,
T. Behr, I. Frolov, M. Schaper, Materials Science Forum (2019) 85–92.
date_created: 2021-09-08T07:31:34Z
date_updated: 2023-06-01T14:28:28Z
department:
- _id: '158'
- _id: '321'
doi: 10.4028/www.scientific.net/msf.949.85
language:
- iso: eng
page: 85-92
publication: Materials Science Forum
publication_identifier:
issn:
- 1662-9752
publication_status: published
quality_controlled: '1'
status: public
title: Flexible Hot Rolling of Extruded Shapes of Aluminum Alloy EN AW-6082
type: journal_article
user_id: '43720'
year: '2019'
...
---
_id: '59978'
abstract:
- lang: eng
text: In latest body-in-white (BIW) concepts, engineers take into account a wider
range of different materials to pursue a multi-material design approach. However,
the lightweight potential of common materials like steel, aluminum or even fiber-reinforcement
plastics (FRP) is limited. In keeping with the motto “the best material for the
best application”, a new approach for a top-down material design is introduced.
With the aim to develop an application tailored material, the multi-material concept
is adapted for the thickness dimension of the component. Within this contribution
a new optimization- based design methodology is applied on a stiffness relevant
car body part. Starting with benchmark simulations of a reference BIW structure,
a critical car body component is determined by an internal energy based method
and a subsequent sensitivity analysis. The identified demonstrator component is
later subdivided into multiple layers and submitted to a first optimization loop
in which the developed methodology varies the material parameters for each single
layer. Once an optimum for the through-thickness properties of the part is found,
further optimization loops with concrete material pendants and manufacturing restrictions
are carried out. The result is a hybrid laminate part consisting of steel and
FRP plies. To achieve a further improvement in body characteristics and lightweight,
the investigated part is redesigned by the aim of topology optimization. Finally,
the tailored hybrid stacks are validated in BIW simulations and compared with
the reference. The optimization-based approach allows a weight reduction up to
25 % while maintaining or even improving the BIW properties.
author:
- first_name: Alan Adam
full_name: Camberg, Alan Adam
id: '60544'
last_name: Camberg
- first_name: Ina
full_name: Stratmann, Ina
last_name: Stratmann
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Camberg AA, Stratmann I, Tröster T. TAILORED STACKED HYBRIDS – AN OPTIMIZATION-BASED
APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES.
In: Zukunftstechnologien Für Den Multifunktionalen Leichtbau. Springer
Berlin Heidelberg; 2019. doi:10.1007/978-3-662-58206-0_12'
apa: Camberg, A. A., Stratmann, I., & Tröster, T. (2019). TAILORED STACKED HYBRIDS
– AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN
LIGHTWEIGHT CAR BODY STRUCTURES. In Zukunftstechnologien für den multifunktionalen
Leichtbau. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-58206-0_12
bibtex: '@inbook{Camberg_Stratmann_Tröster_2019, place={Berlin, Heidelberg}, title={TAILORED
STACKED HYBRIDS – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER
IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES}, DOI={10.1007/978-3-662-58206-0_12},
booktitle={Zukunftstechnologien für den multifunktionalen Leichtbau}, publisher={Springer
Berlin Heidelberg}, author={Camberg, Alan Adam and Stratmann, Ina and Tröster,
Thomas}, year={2019} }'
chicago: 'Camberg, Alan Adam, Ina Stratmann, and Thomas Tröster. “TAILORED STACKED
HYBRIDS – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT
IN LIGHTWEIGHT CAR BODY STRUCTURES.” In Zukunftstechnologien Für Den Multifunktionalen
Leichtbau. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. https://doi.org/10.1007/978-3-662-58206-0_12.'
ieee: 'A. A. Camberg, I. Stratmann, and T. Tröster, “TAILORED STACKED HYBRIDS –
AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT
CAR BODY STRUCTURES,” in Zukunftstechnologien für den multifunktionalen Leichtbau,
Berlin, Heidelberg: Springer Berlin Heidelberg, 2019.'
mla: Camberg, Alan Adam, et al. “TAILORED STACKED HYBRIDS – AN OPTIMIZATION-BASED
APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES.”
Zukunftstechnologien Für Den Multifunktionalen Leichtbau, Springer Berlin
Heidelberg, 2019, doi:10.1007/978-3-662-58206-0_12.
short: 'A.A. Camberg, I. Stratmann, T. Tröster, in: Zukunftstechnologien Für Den
Multifunktionalen Leichtbau, Springer Berlin Heidelberg, Berlin, Heidelberg, 2019.'
date_created: 2025-05-19T06:54:59Z
date_updated: 2025-05-19T06:56:19Z
department:
- _id: '9'
- _id: '149'
- _id: '321'
doi: 10.1007/978-3-662-58206-0_12
language:
- iso: eng
place: Berlin, Heidelberg
publication: Zukunftstechnologien für den multifunktionalen Leichtbau
publication_identifier:
isbn:
- '9783662582053'
- '9783662582060'
issn:
- 2524-4787
- 2524-4795
publication_status: published
publisher: Springer Berlin Heidelberg
quality_controlled: '1'
status: public
title: TAILORED STACKED HYBRIDS – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN
FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES
type: book_chapter
user_id: '15952'
year: '2019'
...
---
_id: '13436'
author:
- first_name: Alan Adam
full_name: Camberg, Alan Adam
id: '60544'
last_name: Camberg
- first_name: Ina
full_name: Stratmann, Ina
last_name: Stratmann
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
citation:
ama: 'Camberg AA, Stratmann I, Tröster T. TAILORED STACKED HYBRIDS – AN OPTIMIZATION-BASED
APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES.
In: Technologies for Economical and Functional Lightweight Design. ; 2019.
doi:10.1007/978-3-662-58206-0_12'
apa: Camberg, A. A., Stratmann, I., & Tröster, T. (2019). TAILORED STACKED HYBRIDS
– AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN
LIGHTWEIGHT CAR BODY STRUCTURES. In Technologies for economical and functional
lightweight design. https://doi.org/10.1007/978-3-662-58206-0_12
bibtex: '@inbook{Camberg_Stratmann_Tröster_2019, place={Berlin, Heidelberg}, title={TAILORED
STACKED HYBRIDS – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER
IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES}, DOI={10.1007/978-3-662-58206-0_12},
booktitle={Technologies for economical and functional lightweight design}, author={Camberg,
Alan Adam and Stratmann, Ina and Tröster, Thomas}, year={2019} }'
chicago: Camberg, Alan Adam, Ina Stratmann, and Thomas Tröster. “TAILORED STACKED
HYBRIDS – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT
IN LIGHTWEIGHT CAR BODY STRUCTURES.” In Technologies for Economical and Functional
Lightweight Design. Berlin, Heidelberg, 2019. https://doi.org/10.1007/978-3-662-58206-0_12.
ieee: A. A. Camberg, I. Stratmann, and T. Tröster, “TAILORED STACKED HYBRIDS – AN
OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT
CAR BODY STRUCTURES,” in Technologies for economical and functional lightweight
design, Berlin, Heidelberg, 2019.
mla: Camberg, Alan Adam, et al. “TAILORED STACKED HYBRIDS – AN OPTIMIZATION-BASED
APPROACH IN MATERIAL DESIGN FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES.”
Technologies for Economical and Functional Lightweight Design, 2019, doi:10.1007/978-3-662-58206-0_12.
short: 'A.A. Camberg, I. Stratmann, T. Tröster, in: Technologies for Economical
and Functional Lightweight Design, Berlin, Heidelberg, 2019.'
date_created: 2019-09-22T17:33:23Z
date_updated: 2025-06-06T08:43:04Z
department:
- _id: '149'
- _id: '9'
- _id: '321'
doi: 10.1007/978-3-662-58206-0_12
language:
- iso: eng
place: Berlin, Heidelberg
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Technologies for economical and functional lightweight design
publication_identifier:
isbn:
- '9783662582053'
- '9783662582060'
issn:
- 2524-4787
- 2524-4795
publication_status: published
status: public
title: TAILORED STACKED HYBRIDS – AN OPTIMIZATION-BASED APPROACH IN MATERIAL DESIGN
FOR FURTHER IMPROVEMENT IN LIGHTWEIGHT CAR BODY STRUCTURES
type: book_chapter
user_id: '15952'
year: '2019'
...
---
_id: '57065'
author:
- first_name: Susanne
full_name: Haaf, Susanne
last_name: Haaf
citation:
ama: 'Haaf S. Art und Funktion von typographischen Mitteln zur Textgliederung in
erbaulichen Textsorten des 17. Jahrhunderts: Automatische Analyse im Korpusvergleich
und qualitative Einordnung. In: Simmler F, Baeva G, eds. Textgliederungsprinzipien:
Ihre Kennzeichnungsformen und Funktionen vom 8. bis 18. Jahrhundert. Akten zum
internationalen Kongress, 22.–24. Juni 2017, Universität St. Petersburg (RU).
Weidler ; 2019:383–410.'
apa: 'Haaf, S. (2019). Art und Funktion von typographischen Mitteln zur Textgliederung
in erbaulichen Textsorten des 17. Jahrhunderts: Automatische Analyse im Korpusvergleich
und qualitative Einordnung. In F. Simmler & G. Baeva (Eds.), Textgliederungsprinzipien:
Ihre Kennzeichnungsformen und Funktionen vom 8. bis 18. Jahrhundert. Akten zum
internationalen Kongress, 22.–24. Juni 2017, Universität St. Petersburg (RU)
(pp. 383–410). Weidler .'
bibtex: '@inbook{Haaf_2019, place={Berlin}, title={Art und Funktion von typographischen
Mitteln zur Textgliederung in erbaulichen Textsorten des 17. Jahrhunderts: Automatische
Analyse im Korpusvergleich und qualitative Einordnung}, booktitle={Textgliederungsprinzipien:
Ihre Kennzeichnungsformen und Funktionen vom 8. bis 18. Jahrhundert. Akten zum
internationalen Kongress, 22.–24. Juni 2017, Universität St. Petersburg (RU)},
publisher={Weidler }, author={Haaf, Susanne}, editor={Simmler, Franz and Baeva,
Galina}, year={2019}, pages={383–410} }'
chicago: 'Haaf, Susanne. “Art und Funktion von typographischen Mitteln zur Textgliederung
in erbaulichen Textsorten des 17. Jahrhunderts: Automatische Analyse im Korpusvergleich
und qualitative Einordnung.” In Textgliederungsprinzipien: Ihre Kennzeichnungsformen
und Funktionen vom 8. bis 18. Jahrhundert. Akten zum internationalen Kongress,
22.–24. Juni 2017, Universität St. Petersburg (RU), edited by Franz Simmler
and Galina Baeva, 383–410. Berlin: Weidler , 2019.'
ieee: 'S. Haaf, “Art und Funktion von typographischen Mitteln zur Textgliederung
in erbaulichen Textsorten des 17. Jahrhunderts: Automatische Analyse im Korpusvergleich
und qualitative Einordnung,” in Textgliederungsprinzipien: Ihre Kennzeichnungsformen
und Funktionen vom 8. bis 18. Jahrhundert. Akten zum internationalen Kongress,
22.–24. Juni 2017, Universität St. Petersburg (RU), F. Simmler and G. Baeva,
Eds. Berlin: Weidler , 2019, pp. 383–410.'
mla: 'Haaf, Susanne. “Art und Funktion von typographischen Mitteln zur Textgliederung
in erbaulichen Textsorten des 17. Jahrhunderts: Automatische Analyse im Korpusvergleich
und qualitative Einordnung.” Textgliederungsprinzipien: Ihre Kennzeichnungsformen
und Funktionen vom 8. bis 18. Jahrhundert. Akten zum internationalen Kongress,
22.–24. Juni 2017, Universität St. Petersburg (RU), edited by Franz Simmler
and Galina Baeva, Weidler , 2019, pp. 383–410.'
short: 'S. Haaf, in: F. Simmler, G. Baeva (Eds.), Textgliederungsprinzipien: Ihre
Kennzeichnungsformen und Funktionen vom 8. bis 18. Jahrhundert. Akten zum internationalen
Kongress, 22.–24. Juni 2017, Universität St. Petersburg (RU), Weidler , Berlin,
2019, pp. 383–410.'
date_created: 2024-11-13T15:35:19Z
date_updated: 2024-11-13T16:11:28Z
department:
- _id: '745'
editor:
- first_name: Franz
full_name: Simmler, Franz
last_name: Simmler
- first_name: Galina
full_name: Baeva, Galina
last_name: Baeva
extern: '1'
language:
- iso: ger
page: 383–410
place: Berlin
project:
- _id: '797'
name: 't.evo – Die Evolution von komplexen Textmustern: Entwicklung und Anwendung
eines korpuslinguistischen Analyseverfahrens zur Erfassung der Mehrdimensionalität
des Textmusterwandels'
publication: 'Textgliederungsprinzipien: Ihre Kennzeichnungsformen und Funktionen
vom 8. bis 18. Jahrhundert. Akten zum internationalen Kongress, 22.–24. Juni 2017,
Universität St. Petersburg (RU)'
publication_status: published
publisher: 'Weidler '
status: public
title: 'Art und Funktion von typographischen Mitteln zur Textgliederung in erbaulichen
Textsorten des 17. Jahrhunderts: Automatische Analyse im Korpusvergleich und qualitative
Einordnung'
type: book_chapter
user_id: '78730'
year: '2019'
...
---
_id: '60388'
abstract:
- lang: eng
text: AbstractIn the field of global surface parametrization
a recent focus has been on so‐called seamless parametrization. This term refers
to parametrization approaches which, while using an atlas of charts to enable
the handling of surfaces of arbitrary topology, relate the parametrization across
the cuts between charts via transition functions from special classes of transformations.
This effectively makes the cuts invisible to applications which are invariant
to these specific transformations in some sense. In actual implementations of
these parametrization approaches, however, these restrictions are obeyed only
approximately; errors stem from the tolerances of numerical solvers employed and,
ultimately, from the limited accuracy of floating point arithmetic. In practice,
robustness issues arise from these flaws in the seamlessness of a parametrization,
no matter how small. We present a robust global algorithm that turns a given approximately
seamless parametrization into an exactly seamless one ‐ that still is representable
by standard floating point numbers. It supports common practically relevant additional
constraints regarding boundary and feature curve alignment or isocurve connectivity,
and ensures that these are likewise fulfilled exactly. This allows subsequent
algorithms to operate robustly on the resulting truly seamless parametrization.
We believe that the core of our method will furthermore be of benefit in a broader
range of applications involving linearly constrained numerical optimization.
author:
- first_name: Manish
full_name: Mandad, Manish
last_name: Mandad
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
citation:
ama: Mandad M, Campen M. Exact Constraint Satisfaction for Truly Seamless Parametrization.
Computer Graphics Forum. 2019;38(2):135-145. doi:10.1111/cgf.13625
apa: Mandad, M., & Campen, M. (2019). Exact Constraint Satisfaction for Truly
Seamless Parametrization. Computer Graphics Forum, 38(2), 135–145.
https://doi.org/10.1111/cgf.13625
bibtex: '@article{Mandad_Campen_2019, title={Exact Constraint Satisfaction for Truly
Seamless Parametrization}, volume={38}, DOI={10.1111/cgf.13625},
number={2}, journal={Computer Graphics Forum}, publisher={Wiley}, author={Mandad,
Manish and Campen, Marcel}, year={2019}, pages={135–145} }'
chicago: 'Mandad, Manish, and Marcel Campen. “Exact Constraint Satisfaction for
Truly Seamless Parametrization.” Computer Graphics Forum 38, no. 2 (2019):
135–45. https://doi.org/10.1111/cgf.13625.'
ieee: 'M. Mandad and M. Campen, “Exact Constraint Satisfaction for Truly Seamless
Parametrization,” Computer Graphics Forum, vol. 38, no. 2, pp. 135–145,
2019, doi: 10.1111/cgf.13625.'
mla: Mandad, Manish, and Marcel Campen. “Exact Constraint Satisfaction for Truly
Seamless Parametrization.” Computer Graphics Forum, vol. 38, no. 2, Wiley,
2019, pp. 135–45, doi:10.1111/cgf.13625.
short: M. Mandad, M. Campen, Computer Graphics Forum 38 (2019) 135–145.
date_created: 2025-06-26T07:35:31Z
date_updated: 2025-07-14T12:44:26Z
department:
- _id: '969'
doi: 10.1111/cgf.13625
extern: '1'
intvolume: ' 38'
issue: '2'
language:
- iso: eng
page: 135-145
publication: Computer Graphics Forum
publication_identifier:
issn:
- 0167-7055
- 1467-8659
publication_status: published
publisher: Wiley
status: public
title: Exact Constraint Satisfaction for Truly Seamless Parametrization
type: journal_article
user_id: '117512'
volume: 38
year: '2019'
...
---
_id: '60390'
abstract:
- lang: eng
text: "\r\n The problem of discrete surface parametrization,
i.e. mapping a mesh to a planar domain, has been investigated extensively. We
address the more general problem of mapping\r\n between\r\n
\ surfaces. In particular, we provide a formulation that yields a map
between two disk-topology meshes, which is continuous and injective by construction
and which locally minimizes intrinsic distortion. A common approach is to express
such a map as the composition of two maps via a simple intermediate domain such
as the plane, and to independently optimize the individual maps. However, even
if both individual maps are of minimal distortion, there is potentially high distortion
in the composed map. In contrast to many previous works, we minimize distortion
in an end-to-end manner, directly optimizing the quality of the composed map.
This setting poses additional challenges due to the discrete nature of both the
source and the target domain. We propose a formulation that, despite the combinatorial
aspects of the problem, allows for a purely continuous optimization. Further,
our approach addresses the non-smooth nature of discrete distortion measures in
this context which hinders straightforward application of off-the-shelf optimization
techniques. We demonstrate that, despite the challenges inherent to the more involved
setting, discrete surface-to-surface maps can be optimized effectively.\r\n "
author:
- first_name: Patrick
full_name: Schmidt, Patrick
last_name: Schmidt
- first_name: Janis
full_name: Born, Janis
last_name: Born
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
- first_name: Leif
full_name: Kobbelt, Leif
last_name: Kobbelt
citation:
ama: Schmidt P, Born J, Campen M, Kobbelt L. Distortion-minimizing injective maps
between surfaces. ACM Transactions on Graphics. 2019;38(6):1-15. doi:10.1145/3355089.3356519
apa: Schmidt, P., Born, J., Campen, M., & Kobbelt, L. (2019). Distortion-minimizing
injective maps between surfaces. ACM Transactions on Graphics, 38(6),
1–15. https://doi.org/10.1145/3355089.3356519
bibtex: '@article{Schmidt_Born_Campen_Kobbelt_2019, title={Distortion-minimizing
injective maps between surfaces}, volume={38}, DOI={10.1145/3355089.3356519},
number={6}, journal={ACM Transactions on Graphics}, publisher={Association for
Computing Machinery (ACM)}, author={Schmidt, Patrick and Born, Janis and Campen,
Marcel and Kobbelt, Leif}, year={2019}, pages={1–15} }'
chicago: 'Schmidt, Patrick, Janis Born, Marcel Campen, and Leif Kobbelt. “Distortion-Minimizing
Injective Maps between Surfaces.” ACM Transactions on Graphics 38, no.
6 (2019): 1–15. https://doi.org/10.1145/3355089.3356519.'
ieee: 'P. Schmidt, J. Born, M. Campen, and L. Kobbelt, “Distortion-minimizing injective
maps between surfaces,” ACM Transactions on Graphics, vol. 38, no. 6, pp.
1–15, 2019, doi: 10.1145/3355089.3356519.'
mla: Schmidt, Patrick, et al. “Distortion-Minimizing Injective Maps between Surfaces.”
ACM Transactions on Graphics, vol. 38, no. 6, Association for Computing
Machinery (ACM), 2019, pp. 1–15, doi:10.1145/3355089.3356519.
short: P. Schmidt, J. Born, M. Campen, L. Kobbelt, ACM Transactions on Graphics
38 (2019) 1–15.
date_created: 2025-06-26T07:44:21Z
date_updated: 2025-07-14T12:44:37Z
department:
- _id: '969'
doi: 10.1145/3355089.3356519
extern: '1'
intvolume: ' 38'
issue: '6'
language:
- iso: eng
page: 1-15
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
- 1557-7368
publication_status: published
publisher: Association for Computing Machinery (ACM)
status: public
title: Distortion-minimizing injective maps between surfaces
type: journal_article
user_id: '117512'
volume: 38
year: '2019'
...
---
_id: '60384'
abstract:
- lang: eng
text: "Seamless global parametrization of surfaces is a key operation in
geometry processing, e.g., for high-quality quad mesh generation. A common approach
is to prescribe the parametric domain structure, in particular, the locations
of parametrization singularities (cones), and solve a non-convex optimization
problem minimizing a distortion measure, with local injectivity imposed through
either constraints or barrier terms. In both cases, an initial valid parametrization
is essential to serve as a feasible starting point for obtaining an optimized
solution. While convexified versions of the constraints eliminate this initialization
requirement, they narrow the range of solutions, causing some problem instances
that actually do have a solution to become infeasible.\r\n We
demonstrate that for arbitrary given sets of topologically admissible parametric
cones with prescribed curvature, a global seamless parametrization always exists
(with the exception of one well-known case). Importantly, our proof is constructive
and directly leads to a general algorithm for computing such parametrizations.
Most distinctively, this algorithm is bootstrapped with a convex optimization
problem (solving for a conformal map), in tandem with a simple linear equation
system (determining a seamless modification of this map). This initial map can
then serve as a valid starting point and be optimized for low distortion using
existing injectivity preserving methods."
author:
- first_name: Marcel
full_name: Campen, Marcel
id: '114904'
last_name: Campen
orcid: 0000-0003-2340-3462
- first_name: Hanxiao
full_name: Shen, Hanxiao
last_name: Shen
- first_name: Jiaran
full_name: Zhou, Jiaran
last_name: Zhou
- first_name: Denis
full_name: Zorin, Denis
last_name: Zorin
citation:
ama: Campen M, Shen H, Zhou J, Zorin D. Seamless Parametrization with Arbitrary
Cones for Arbitrary Genus. ACM Transactions on Graphics. 2019;39(1):1-19.
doi:10.1145/3360511
apa: Campen, M., Shen, H., Zhou, J., & Zorin, D. (2019). Seamless Parametrization
with Arbitrary Cones for Arbitrary Genus. ACM Transactions on Graphics,
39(1), 1–19. https://doi.org/10.1145/3360511
bibtex: '@article{Campen_Shen_Zhou_Zorin_2019, title={Seamless Parametrization with
Arbitrary Cones for Arbitrary Genus}, volume={39}, DOI={10.1145/3360511},
number={1}, journal={ACM Transactions on Graphics}, publisher={Association for
Computing Machinery (ACM)}, author={Campen, Marcel and Shen, Hanxiao and Zhou,
Jiaran and Zorin, Denis}, year={2019}, pages={1–19} }'
chicago: 'Campen, Marcel, Hanxiao Shen, Jiaran Zhou, and Denis Zorin. “Seamless
Parametrization with Arbitrary Cones for Arbitrary Genus.” ACM Transactions
on Graphics 39, no. 1 (2019): 1–19. https://doi.org/10.1145/3360511.'
ieee: 'M. Campen, H. Shen, J. Zhou, and D. Zorin, “Seamless Parametrization with
Arbitrary Cones for Arbitrary Genus,” ACM Transactions on Graphics, vol.
39, no. 1, pp. 1–19, 2019, doi: 10.1145/3360511.'
mla: Campen, Marcel, et al. “Seamless Parametrization with Arbitrary Cones for Arbitrary
Genus.” ACM Transactions on Graphics, vol. 39, no. 1, Association for Computing
Machinery (ACM), 2019, pp. 1–19, doi:10.1145/3360511.
short: M. Campen, H. Shen, J. Zhou, D. Zorin, ACM Transactions on Graphics 39 (2019)
1–19.
date_created: 2025-06-26T07:05:13Z
date_updated: 2025-07-14T12:48:21Z
department:
- _id: '969'
doi: 10.1145/3360511
extern: '1'
intvolume: ' 39'
issue: '1'
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: Seamless Parametrization with Arbitrary Cones for Arbitrary Genus
type: journal_article
user_id: '117512'
volume: 39
year: '2019'
...
---
_id: '21424'
abstract:
- lang: eng
text: 'There are two ways for taxpayers to avoid paying taxes: legal tax optimization
and illegal tax evasion. The government reacts by altering the law, and by conducting
audits, respectively. These phenomena are modeled as a strategic interaction between
all taxpayers: the more taxpayers optimize, the lower the optimization result
as a consequence of the government tightening the tax law. The more taxpayers
evade, the higher the risk of detection because of the tax agencies increasing
the audit probability. It emerges that, in equilibrium, the population shares
of optimizers and evaders are not interdependent; rather, they both increase to
the detriment of the share of non-optimizing taxpayers. If the government reacts
to changed optimization behavior with too large a delay, an equilibrium tax law
cannot be reached. Tax codes should be updated rapidly in order to avoid a permanent
change of the tax law, which is costly both for the legislator and the taxpayers
facing legal uncertainty.'
author:
- first_name: Johannes
full_name: Lorenz, Johannes
last_name: Lorenz
citation:
ama: Lorenz J. Population Dynamics of Tax Avoidance with Crowding Effects. Journal
of Evolutionary Economics. 2019;29:581-609. doi:10.1007/s00191-018-0572-6
apa: Lorenz, J. (2019). Population Dynamics of Tax Avoidance with Crowding Effects.
Journal of Evolutionary Economics, 29, 581–609. https://doi.org/10.1007/s00191-018-0572-6
bibtex: '@article{Lorenz_2019, title={Population Dynamics of Tax Avoidance with
Crowding Effects}, volume={29}, DOI={10.1007/s00191-018-0572-6},
journal={Journal of Evolutionary Economics}, author={Lorenz, Johannes}, year={2019},
pages={581–609} }'
chicago: 'Lorenz, Johannes. “Population Dynamics of Tax Avoidance with Crowding
Effects.” Journal of Evolutionary Economics 29 (2019): 581–609. https://doi.org/10.1007/s00191-018-0572-6.'
ieee: 'J. Lorenz, “Population Dynamics of Tax Avoidance with Crowding Effects,”
Journal of Evolutionary Economics, vol. 29, pp. 581–609, 2019, doi: 10.1007/s00191-018-0572-6.'
mla: Lorenz, Johannes. “Population Dynamics of Tax Avoidance with Crowding Effects.”
Journal of Evolutionary Economics, vol. 29, 2019, pp. 581–609, doi:10.1007/s00191-018-0572-6.
short: J. Lorenz, Journal of Evolutionary Economics 29 (2019) 581–609.
date_created: 2021-03-09T09:44:25Z
date_updated: 2026-04-09T08:55:10Z
department:
- _id: '187'
doi: 10.1007/s00191-018-0572-6
intvolume: ' 29'
language:
- iso: eng
main_file_link:
- url: https://link.springer.com/article/10.1007/s00191-018-0572-6
page: 581-609
publication: Journal of Evolutionary Economics
quality_controlled: '1'
status: public
title: Population Dynamics of Tax Avoidance with Crowding Effects
type: journal_article
user_id: '96670'
volume: 29
year: '2019'
...