---
_id: '27782'
author:
- first_name: Jennie
full_name: Brand-Miller, Jennie
last_name: Brand-Miller
- first_name: Anette
full_name: Buyken, Anette
id: '65985'
last_name: Buyken
citation:
ama: Brand-Miller J, Buyken A. The glycemic index issue. Current Opinion in Lipidology.
Published online 2011:62-67. doi:10.1097/mol.0b013e32834ec705
apa: Brand-Miller, J., & Buyken, A. (2011). The glycemic index issue. Current
Opinion in Lipidology, 62–67. https://doi.org/10.1097/mol.0b013e32834ec705
bibtex: '@article{Brand-Miller_Buyken_2011, title={The glycemic index issue}, DOI={10.1097/mol.0b013e32834ec705},
journal={Current Opinion in Lipidology}, author={Brand-Miller, Jennie and Buyken,
Anette}, year={2011}, pages={62–67} }'
chicago: Brand-Miller, Jennie, and Anette Buyken. “The Glycemic Index Issue.” Current
Opinion in Lipidology, 2011, 62–67. https://doi.org/10.1097/mol.0b013e32834ec705.
ieee: 'J. Brand-Miller and A. Buyken, “The glycemic index issue,” Current Opinion
in Lipidology, pp. 62–67, 2011, doi: 10.1097/mol.0b013e32834ec705.'
mla: Brand-Miller, Jennie, and Anette Buyken. “The Glycemic Index Issue.” Current
Opinion in Lipidology, 2011, pp. 62–67, doi:10.1097/mol.0b013e32834ec705.
short: J. Brand-Miller, A. Buyken, Current Opinion in Lipidology (2011) 62–67.
date_created: 2021-11-25T11:31:27Z
date_updated: 2022-01-06T06:57:45Z
department:
- _id: '17'
- _id: '22'
- _id: '571'
doi: 10.1097/mol.0b013e32834ec705
language:
- iso: eng
page: 62-67
publication: Current Opinion in Lipidology
publication_identifier:
issn:
- 0957-9672
publication_status: published
status: public
title: The glycemic index issue
type: journal_article
user_id: '61597'
year: '2011'
...
---
_id: '27884'
author:
- first_name: Kirsten
full_name: Schlegel-Matthies, Kirsten
id: '459'
last_name: Schlegel-Matthies
citation:
ama: Schlegel-Matthies K. Den Umgang mit Geld und Konsum lernen – Verbraucherbildung
in der Schule. Stimme der Familie . 2011;58(3):3-6.
apa: Schlegel-Matthies, K. (2011). Den Umgang mit Geld und Konsum lernen – Verbraucherbildung
in der Schule. Stimme der Familie , 58(3), 3–6.
bibtex: '@article{Schlegel-Matthies_2011, title={Den Umgang mit Geld und Konsum
lernen – Verbraucherbildung in der Schule}, volume={58}, number={3}, journal={Stimme
der Familie }, author={Schlegel-Matthies, Kirsten}, year={2011}, pages={3–6} }'
chicago: 'Schlegel-Matthies, Kirsten. “Den Umgang mit Geld und Konsum lernen – Verbraucherbildung
in der Schule.” Stimme der Familie 58, no. 3 (2011): 3–6.'
ieee: K. Schlegel-Matthies, “Den Umgang mit Geld und Konsum lernen – Verbraucherbildung
in der Schule,” Stimme der Familie , vol. 58, no. 3, pp. 3–6, 2011.
mla: Schlegel-Matthies, Kirsten. “Den Umgang mit Geld und Konsum lernen – Verbraucherbildung
in der Schule.” Stimme der Familie , vol. 58, no. 3, 2011, pp. 3–6.
short: K. Schlegel-Matthies, Stimme der Familie 58 (2011) 3–6.
date_created: 2021-11-25T19:30:02Z
date_updated: 2022-01-06T06:57:47Z
department:
- _id: '35'
- _id: '22'
- _id: '396'
intvolume: ' 58'
issue: '3'
language:
- iso: ger
page: 3-6
publication: 'Stimme der Familie '
publication_status: published
status: public
title: Den Umgang mit Geld und Konsum lernen – Verbraucherbildung in der Schule
type: journal_article
user_id: '49428'
volume: 58
year: '2011'
...
---
_id: '27885'
author:
- first_name: Kirsten
full_name: Schlegel-Matthies, Kirsten
id: '459'
last_name: Schlegel-Matthies
citation:
ama: Schlegel-Matthies K. Was ist Verbraucherbildung? – Was kann sie leisten? Haushalt
& Bildung . 2011;88(4):3-10.
apa: Schlegel-Matthies, K. (2011). Was ist Verbraucherbildung? – Was kann sie leisten?
Haushalt & Bildung , 88(4), 3–10.
bibtex: '@article{Schlegel-Matthies_2011, title={Was ist Verbraucherbildung? – Was
kann sie leisten?}, volume={88}, number={4}, journal={Haushalt & Bildung },
author={Schlegel-Matthies, Kirsten}, year={2011}, pages={3–10} }'
chicago: 'Schlegel-Matthies, Kirsten. “Was ist Verbraucherbildung? – Was kann sie
leisten?” Haushalt & Bildung 88, no. 4 (2011): 3–10.'
ieee: K. Schlegel-Matthies, “Was ist Verbraucherbildung? – Was kann sie leisten?,”
Haushalt & Bildung , vol. 88, no. 4, pp. 3–10, 2011.
mla: Schlegel-Matthies, Kirsten. “Was ist Verbraucherbildung? – Was kann sie leisten?”
Haushalt & Bildung , vol. 88, no. 4, 2011, pp. 3–10.
short: K. Schlegel-Matthies, Haushalt & Bildung 88 (2011) 3–10.
date_created: 2021-11-25T19:32:22Z
date_updated: 2022-01-06T06:57:47Z
department:
- _id: '35'
- _id: '22'
- _id: '396'
intvolume: ' 88'
issue: '4'
language:
- iso: ger
page: 3-10
publication: 'Haushalt & Bildung '
publication_status: published
status: public
title: Was ist Verbraucherbildung? – Was kann sie leisten?
type: journal_article
user_id: '49428'
volume: 88
year: '2011'
...
---
_id: '17420'
abstract:
- lang: eng
text: "Occlusion culling is a common approach to accelerate real-time rendering
of polygonal 3D-scenes by reducing the rendering load. Especially for large scenes,
it is necessary to remove occluded objects to achieve a frame rate that provides
an interactive environment. In order to benefit from the culling properly, often
hierarchical data structures are used. These data structures typically create
a spatial subdivision of a given scene into axis-aligned bounding boxes. These
boxes can be tested quickly, but they are not very precise. By using these boxes,
the included objects are detected as visible, even if other objects occlude them
(false-positives). To get perfect results, the models\x92 original geometry included
in the box has to be tested, but this would require too much computational power.
To overcome this problem, original objects\x92 approximations could be used, but
typical methods for mesh simplification cannot be applied, because they do not
create an outer hull for a given object. We present a model simplification algorithm,
which generates simple outer hulls, consisting of only few more triangles than
a box, while preserving an object\x92s shape better than a corresponding bounding
box. This approach is then extended to a hierarchical data structure, the so-called
hull tree, that can be generated for a given scene to improve the visibility tests.
Next, we present an approximative rendering algorithm, which combines the features
of the hull tree with the use of inner hulls for efficient occlusion detection
and global state-sorting of the visible objects.\r\n"
author:
- first_name: Tim
full_name: Suess, Tim
last_name: Suess
- first_name: Clemens
full_name: Koch, Clemens
last_name: Koch
- first_name: Claudius
full_name: Jähn, Claudius
last_name: Jähn
- first_name: Matthias
full_name: Fischer, Matthias
id: '146'
last_name: Fischer
citation:
ama: 'Suess T, Koch C, Jähn C, Fischer M. Approximative occlusion culling using
the hull tree. In: Brooks S, Irani P, eds. Proceedings of the Graphics Interface
2011 Conference, May 25-27, St. John’s, Newfoundland, Canada. Canadian Human-Computer
Communications Society; 2011:79--86.'
apa: Suess, T., Koch, C., Jähn, C., & Fischer, M. (2011). Approximative occlusion
culling using the hull tree. In S. Brooks & P. Irani (Eds.), Proceedings
of the Graphics Interface 2011 Conference, May 25-27, St. John’s, Newfoundland,
Canada (pp. 79--86). Canadian Human-Computer Communications Society.
bibtex: '@inproceedings{Suess_Koch_Jähn_Fischer_2011, title={Approximative occlusion
culling using the hull tree}, booktitle={Proceedings of the Graphics Interface
2011 Conference, May 25-27, St. John’s, Newfoundland, Canada}, publisher={Canadian
Human-Computer Communications Society}, author={Suess, Tim and Koch, Clemens and
Jähn, Claudius and Fischer, Matthias}, editor={Brooks, Stephen and Irani, Pourang},
year={2011}, pages={79--86} }'
chicago: Suess, Tim, Clemens Koch, Claudius Jähn, and Matthias Fischer. “Approximative
Occlusion Culling Using the Hull Tree.” In Proceedings of the Graphics Interface
2011 Conference, May 25-27, St. John’s, Newfoundland, Canada, edited by Stephen
Brooks and Pourang Irani, 79--86. Canadian Human-Computer Communications Society,
2011.
ieee: T. Suess, C. Koch, C. Jähn, and M. Fischer, “Approximative occlusion culling
using the hull tree,” in Proceedings of the Graphics Interface 2011 Conference,
May 25-27, St. John’s, Newfoundland, Canada, 2011, pp. 79--86.
mla: Suess, Tim, et al. “Approximative Occlusion Culling Using the Hull Tree.” Proceedings
of the Graphics Interface 2011 Conference, May 25-27, St. John’s, Newfoundland,
Canada, edited by Stephen Brooks and Pourang Irani, Canadian Human-Computer
Communications Society, 2011, pp. 79--86.
short: 'T. Suess, C. Koch, C. Jähn, M. Fischer, in: S. Brooks, P. Irani (Eds.),
Proceedings of the Graphics Interface 2011 Conference, May 25-27, St. John’s,
Newfoundland, Canada, Canadian Human-Computer Communications Society, 2011, pp.
79--86.'
date_created: 2020-07-27T19:17:03Z
date_updated: 2022-01-06T06:53:11Z
department:
- _id: '63'
editor:
- first_name: Stephen
full_name: Brooks, Stephen
last_name: Brooks
- first_name: Pourang
full_name: Irani, Pourang
last_name: Irani
language:
- iso: eng
page: 79--86
publication: Proceedings of the Graphics Interface 2011 Conference, May 25-27, St.
John's, Newfoundland, Canada
publisher: Canadian Human-Computer Communications Society
status: public
title: Approximative occlusion culling using the hull tree
type: conference
user_id: '15415'
year: '2011'
...
---
_id: '17894'
author:
- first_name: Ilka
full_name: Mindt, Ilka
id: '32079'
last_name: Mindt
- first_name: Joybrato
full_name: Mukherjee, Joybrato
last_name: Mukherjee
citation:
ama: "Mindt I, Mukherjee J. Anglistische Korpuslinguistik. Eine \tEinführung. Grundlagen
der Anglistik und Amerikanistik 33. In: Anglistik. International Journal of
English Studies, 22, 1. Berlin: Erich Schmidt Verlag, 2009; 2011:205-206."
apa: "Mindt, I., & Mukherjee, J. (2011). Anglistische Korpuslinguistik. Eine
\tEinführung. Grundlagen der Anglistik und Amerikanistik 33. In Anglistik.
International Journal of English Studies, 22, 1 (pp. 205–206). Berlin: Erich
Schmidt Verlag, 2009."
bibtex: "@inbook{Mindt_Mukherjee_2011, place={Berlin}, title={Anglistische Korpuslinguistik.
Eine \tEinführung. Grundlagen der Anglistik und Amerikanistik 33}, booktitle={Anglistik.
International Journal of English Studies, 22, 1}, publisher={Erich Schmidt Verlag,
2009}, author={Mindt, Ilka and Mukherjee, Joybrato}, year={2011}, pages={205–206}
}"
chicago: "Mindt, Ilka, and Joybrato Mukherjee. “Anglistische Korpuslinguistik. Eine
\tEinführung. Grundlagen der Anglistik und Amerikanistik 33.” In Anglistik.
International Journal of English Studies, 22, 1, 205–6. Berlin: Erich Schmidt
Verlag, 2009, 2011."
ieee: "I. Mindt and J. Mukherjee, “Anglistische Korpuslinguistik. Eine \tEinführung.
Grundlagen der Anglistik und Amerikanistik 33,” in Anglistik. International
Journal of English Studies, 22, 1, Berlin: Erich Schmidt Verlag, 2009, 2011,
pp. 205–206."
mla: "Mindt, Ilka, and Joybrato Mukherjee. “Anglistische Korpuslinguistik. Eine
\tEinführung. Grundlagen der Anglistik und Amerikanistik 33.” Anglistik. International
Journal of English Studies, 22, 1, Erich Schmidt Verlag, 2009, 2011, pp. 205–06."
short: 'I. Mindt, J. Mukherjee, in: Anglistik. International Journal of English
Studies, 22, 1, Erich Schmidt Verlag, 2009, Berlin, 2011, pp. 205–206.'
date_created: 2020-08-13T06:40:42Z
date_updated: 2022-01-06T06:53:22Z
department:
- _id: '384'
language:
- iso: ger
page: 205 - 206
place: Berlin
publication: Anglistik. International Journal of English Studies, 22, 1
publisher: Erich Schmidt Verlag, 2009
status: public
title: "Anglistische Korpuslinguistik. Eine \tEinführung. Grundlagen der Anglistik
und Amerikanistik 33"
type: book_chapter
user_id: '21240'
year: '2011'
...
---
_id: '23739'
abstract:
- lang: eng
text: "This paper deals with the design of efficiently computable incentive-compatible
mechanisms for combinatorial optimization problems with single-minded agents each
possibly having multiple private parameters. We focus on approximation algorithms
for NP-hard mechanism design problems. These algorithms need to satisfy certain
monotonicity properties to ensure truthfulness. Since most of the known approximation
techniques do not fulfill these properties, we study alternative techniques. Our
first contribution is a quite general method to transform a pseudopolynomial algorithm
into a monotone fully polynomial time approximation scheme (FPTAS). This can be
applied to various problems like, e.g., knapsack, constrained shortest path, or
job scheduling with deadlines. For example, the monotone FPTAS for the knapsack
problem gives a very efficient, truthful mechanism for single-minded multiunit
auctions. The best previous result for such auctions was a 2-appro-xi-ma-tion.
In addition, we present a monotone PTAS for the generalized assignment problem
with any constant number of private parameters per agent. The most efficient way
to solve packing integer programs (PIPs) is linear programming–based randomized
rounding, which also is in general not monotone. We show that primal-dual greedy
algorithms achieve almost the same approximation ratios for PIPs as randomized
rounding. The advantage is that these algorithms are inherently monotone. This
way, we can significantly improve the approximation ratios of truthful mechanisms
for various fundamental mechanism design problems like single-minded combinatorial
auctions (CAs), unsplittable flow routing, and multicast routing. Our primal-dual
approximation algorithms can also be used for the winner determination in CAs
with general bidders specifying their bids through an oracle.\r\n"
author:
- first_name: Patrick
full_name: Briest, Patrick
last_name: Briest
- first_name: Piotr
full_name: Krysta, Piotr
last_name: Krysta
- first_name: Berthold
full_name: Vöcking, Berthold
last_name: Vöcking
citation:
ama: Briest P, Krysta P, Vöcking B. Approximation Techniques for Utilitarian Mechanism
Design. SIAM Journal on Computing. 2011:1587-1622. doi:10.1137/090772988
apa: Briest, P., Krysta, P., & Vöcking, B. (2011). Approximation Techniques
for Utilitarian Mechanism Design. SIAM Journal on Computing, 1587–1622.
https://doi.org/10.1137/090772988
bibtex: '@article{Briest_Krysta_Vöcking_2011, title={Approximation Techniques for
Utilitarian Mechanism Design}, DOI={10.1137/090772988},
journal={SIAM Journal on Computing}, author={Briest, Patrick and Krysta, Piotr
and Vöcking, Berthold}, year={2011}, pages={1587–1622} }'
chicago: Briest, Patrick, Piotr Krysta, and Berthold Vöcking. “Approximation Techniques
for Utilitarian Mechanism Design.” SIAM Journal on Computing, 2011, 1587–1622.
https://doi.org/10.1137/090772988.
ieee: P. Briest, P. Krysta, and B. Vöcking, “Approximation Techniques for Utilitarian
Mechanism Design,” SIAM Journal on Computing, pp. 1587–1622, 2011.
mla: Briest, Patrick, et al. “Approximation Techniques for Utilitarian Mechanism
Design.” SIAM Journal on Computing, 2011, pp. 1587–622, doi:10.1137/090772988.
short: P. Briest, P. Krysta, B. Vöcking, SIAM Journal on Computing (2011) 1587–1622.
date_created: 2021-09-03T10:41:04Z
date_updated: 2022-01-06T06:55:59Z
department:
- _id: '63'
doi: 10.1137/090772988
language:
- iso: eng
page: 1587-1622
publication: SIAM Journal on Computing
publication_identifier:
issn:
- 0097-5397
- 1095-7111
publication_status: published
status: public
title: Approximation Techniques for Utilitarian Mechanism Design
type: journal_article
user_id: '15415'
year: '2011'
...
---
_id: '18194'
abstract:
- lang: eng
text: 'We present a parallel rendering system for PC-Clusters to visualize large
3D scenes. One single visualization node, equipped with a high-end graphics adapter,
is supported by a group of backend nodes with weak graphics performance. The objects
of the scene are distributed among these backend nodes, they serve two purposes:
First, they provide an out-of-core memory system for the visualization node. Second,
they assist the visualization node''s rendering by performing visibility calculations
and only sending visible objects to the visualization node. In order to obtain
fast rendering with our system, we have to distribute the objects among the backend
nodes in a way that does not only guarantee an even distribution of the objects,
but also an even distribution of the visibility calculations and the amount of
data send to the visualization node. We identify necessary properties of the distribution
and argue that a random distribution is a good candidate. Further, in order to
reduce the number of objects sent to the visualization node per frame, we employ
an approximate hierarchical occlusion culling in each backend node. For this,
they are equipped, in addition to the objects assigned to them, with simplified
versions of the other objects of the 3D scene. The visualization node is equipped
with 512 MiB video memory and supported by 15 backend nodes. This system is able
to render a approx. 350 million polygons (approx. 8.5 GiB) large aircraft model
between 20 - 30 fps and thus allows a walkthrough in real-time.'
author:
- first_name: Tim
full_name: Suess, Tim
last_name: Suess
- first_name: Clemens
full_name: Koch, Clemens
last_name: Koch
- first_name: Claudius
full_name: Jähn, Claudius
last_name: Jähn
- first_name: Matthias
full_name: Fischer, Matthias
id: '146'
last_name: Fischer
- first_name: Friedhelm
full_name: Meyer auf der Heide, Friedhelm
id: '15523'
last_name: Meyer auf der Heide
citation:
ama: Suess T, Koch C, Jähn C, Fischer M, Meyer auf der Heide F. Parallel Out-of-Core
Occlusion Culling. Published online 2011.
apa: Suess, T., Koch, C., Jähn, C., Fischer, M., & Meyer auf der Heide, F. (2011).
Parallel Out-of-Core Occlusion Culling.
bibtex: '@article{Suess_Koch_Jähn_Fischer_Meyer auf der Heide_2011, title={Parallel
Out-of-Core Occlusion Culling}, author={Suess, Tim and Koch, Clemens and Jähn,
Claudius and Fischer, Matthias and Meyer auf der Heide, Friedhelm}, year={2011}
}'
chicago: Suess, Tim, Clemens Koch, Claudius Jähn, Matthias Fischer, and Friedhelm
Meyer auf der Heide. “Parallel Out-of-Core Occlusion Culling,” 2011.
ieee: T. Suess, C. Koch, C. Jähn, M. Fischer, and F. Meyer auf der Heide, “Parallel
Out-of-Core Occlusion Culling.” 2011.
mla: Suess, Tim, et al. Parallel Out-of-Core Occlusion Culling. 2011.
short: T. Suess, C. Koch, C. Jähn, M. Fischer, F. Meyer auf der Heide, (2011).
date_created: 2020-08-24T14:14:10Z
date_updated: 2022-01-06T06:53:27Z
ddc:
- '000'
department:
- _id: '63'
file:
- access_level: closed
content_type: application/pdf
creator: koala
date_created: 2020-08-24T14:13:46Z
date_updated: 2020-08-24T14:13:46Z
file_id: '18195'
file_name: pre-03-2011-5220.pdf
file_size: 3091853
relation: main_file
success: 1
file_date_updated: 2020-08-24T14:13:46Z
has_accepted_license: '1'
language:
- iso: eng
status: public
title: Parallel Out-of-Core Occlusion Culling
type: preprint
user_id: '15415'
year: '2011'
...
---
_id: '22362'
author:
- first_name: Philipp
full_name: Adelt, Philipp
last_name: Adelt
- first_name: Natascha
full_name: Esau, Natascha
last_name: Esau
- first_name: Christian
full_name: Hölscher, Christian
last_name: Hölscher
- first_name: Bernd
full_name: Kleinjohann, Bernd
last_name: Kleinjohann
- first_name: Lisa
full_name: Kleinjohann, Lisa
last_name: Kleinjohann
- first_name: Martin
full_name: Krüger, Martin
last_name: Krüger
- first_name: Detmar
full_name: Zimmer, Detmar
id: '604'
last_name: Zimmer
citation:
ama: Adelt P, Esau N, Hölscher C, et al. Hybrid Planning for Self-Optimization
in Railbound Mechatronic Systems. InTech; 2011:169-194. doi:10.5772/15451
apa: Adelt, P., Esau, N., Hölscher, C., Kleinjohann, B., Kleinjohann, L., Krüger,
M., & Zimmer, D. (2011). Hybrid Planning for Self-Optimization in Railbound
Mechatronic Systems (pp. 169–194). InTech. https://doi.org/10.5772/15451
bibtex: '@book{Adelt_Esau_Hölscher_Kleinjohann_Kleinjohann_Krüger_Zimmer_2011, title={Hybrid
Planning for Self-Optimization in Railbound Mechatronic Systems}, DOI={10.5772/15451},
publisher={InTech}, author={Adelt, Philipp and Esau, Natascha and Hölscher, Christian
and Kleinjohann, Bernd and Kleinjohann, Lisa and Krüger, Martin and Zimmer, Detmar},
year={2011}, pages={169–194} }'
chicago: Adelt, Philipp, Natascha Esau, Christian Hölscher, Bernd Kleinjohann, Lisa
Kleinjohann, Martin Krüger, and Detmar Zimmer. Hybrid Planning for Self-Optimization
in Railbound Mechatronic Systems. InTech, 2011. https://doi.org/10.5772/15451.
ieee: P. Adelt et al., Hybrid Planning for Self-Optimization in Railbound
Mechatronic Systems. InTech, 2011, pp. 169–194.
mla: Adelt, Philipp, et al. Hybrid Planning for Self-Optimization in Railbound
Mechatronic Systems. InTech, 2011, pp. 169–94, doi:10.5772/15451.
short: P. Adelt, N. Esau, C. Hölscher, B. Kleinjohann, L. Kleinjohann, M. Krüger,
D. Zimmer, Hybrid Planning for Self-Optimization in Railbound Mechatronic Systems,
InTech, 2011.
date_created: 2021-06-15T11:08:42Z
date_updated: 2022-01-06T06:55:31Z
department:
- _id: '9'
- _id: '146'
doi: 10.5772/15451
language:
- iso: eng
page: 169-194
publication_identifier:
isbn:
- 978-953-307-300-2
publisher: InTech
status: public
title: Hybrid Planning for Self-Optimization in Railbound Mechatronic Systems
type: book
user_id: '38077'
year: '2011'
...
---
_id: '23181'
author:
- first_name: Martin
full_name: Krüger, Martin
last_name: Krüger
- first_name: Katrin
full_name: Witting, Katrin
last_name: Witting
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Michael
full_name: Dellnitz, Michael
last_name: Dellnitz
citation:
ama: 'Krüger M, Witting K, Trächtler A, Dellnitz M. Parametric Model-Order Reduction
in Hierarchical Multiobjective Optimization of Mechatronic Systems. In: 18th
IFAC World Congress. Milano, Italy; 2011.'
apa: Krüger, M., Witting, K., Trächtler, A., & Dellnitz, M. (2011). Parametric
Model-Order Reduction in Hierarchical Multiobjective Optimization of Mechatronic
Systems. In 18th IFAC World Congress. Milano, Italy.
bibtex: '@inproceedings{Krüger_Witting_Trächtler_Dellnitz_2011, place={Milano, Italy},
title={Parametric Model-Order Reduction in Hierarchical Multiobjective Optimization
of Mechatronic Systems}, booktitle={18th IFAC World Congress}, author={Krüger,
Martin and Witting, Katrin and Trächtler, Ansgar and Dellnitz, Michael}, year={2011}
}'
chicago: Krüger, Martin, Katrin Witting, Ansgar Trächtler, and Michael Dellnitz.
“Parametric Model-Order Reduction in Hierarchical Multiobjective Optimization
of Mechatronic Systems.” In 18th IFAC World Congress. Milano, Italy, 2011.
ieee: M. Krüger, K. Witting, A. Trächtler, and M. Dellnitz, “Parametric Model-Order
Reduction in Hierarchical Multiobjective Optimization of Mechatronic Systems,”
in 18th IFAC World Congress, 2011.
mla: Krüger, Martin, et al. “Parametric Model-Order Reduction in Hierarchical Multiobjective
Optimization of Mechatronic Systems.” 18th IFAC World Congress, 2011.
short: 'M. Krüger, K. Witting, A. Trächtler, M. Dellnitz, in: 18th IFAC World Congress,
Milano, Italy, 2011.'
date_created: 2021-08-09T07:36:13Z
date_updated: 2022-01-06T06:55:47Z
department:
- _id: '153'
language:
- iso: eng
place: Milano, Italy
publication: 18th IFAC World Congress
status: public
title: Parametric Model-Order Reduction in Hierarchical Multiobjective Optimization
of Mechatronic Systems
type: conference
user_id: '24876'
year: '2011'
...
---
_id: '23189'
author:
- first_name: Philipp
full_name: Adelt, Philipp
last_name: Adelt
- first_name: Natascha
full_name: Esau, Natascha
last_name: Esau
- first_name: Christian
full_name: Hölscher, Christian
last_name: Hölscher
- first_name: Bernd
full_name: Kleinjohann, Bernd
last_name: Kleinjohann
- first_name: Lisa
full_name: Kleinjohann, Lisa
last_name: Kleinjohann
- first_name: Martin
full_name: Krüger, Martin
last_name: Krüger
- first_name: Detmar
full_name: Zimmer, Detmar
last_name: Zimmer
citation:
ama: 'Adelt P, Esau N, Hölscher C, et al. Hybrid Planning for Self-Optimization
in Railbound Mechatronic Systems. In: Intelligent Mechatronics. InTech
Open Access Publisher; 2011:169-194.'
apa: Adelt, P., Esau, N., Hölscher, C., Kleinjohann, B., Kleinjohann, L., Krüger,
M., & Zimmer, D. (2011). Hybrid Planning for Self-Optimization in Railbound
Mechatronic Systems. In Intelligent Mechatronics (pp. 169–194). InTech
Open Access Publisher.
bibtex: '@inbook{Adelt_Esau_Hölscher_Kleinjohann_Kleinjohann_Krüger_Zimmer_2011,
title={Hybrid Planning for Self-Optimization in Railbound Mechatronic Systems},
booktitle={Intelligent Mechatronics}, publisher={InTech Open Access Publisher},
author={Adelt, Philipp and Esau, Natascha and Hölscher, Christian and Kleinjohann,
Bernd and Kleinjohann, Lisa and Krüger, Martin and Zimmer, Detmar}, year={2011},
pages={169–194} }'
chicago: Adelt, Philipp, Natascha Esau, Christian Hölscher, Bernd Kleinjohann, Lisa
Kleinjohann, Martin Krüger, and Detmar Zimmer. “Hybrid Planning for Self-Optimization
in Railbound Mechatronic Systems.” In Intelligent Mechatronics, 169–94.
InTech Open Access Publisher, 2011.
ieee: P. Adelt et al., “Hybrid Planning for Self-Optimization in Railbound
Mechatronic Systems,” in Intelligent Mechatronics, InTech Open Access Publisher,
2011, pp. 169–194.
mla: Adelt, Philipp, et al. “Hybrid Planning for Self-Optimization in Railbound
Mechatronic Systems.” Intelligent Mechatronics, InTech Open Access Publisher,
2011, pp. 169–94.
short: 'P. Adelt, N. Esau, C. Hölscher, B. Kleinjohann, L. Kleinjohann, M. Krüger,
D. Zimmer, in: Intelligent Mechatronics, InTech Open Access Publisher, 2011, pp.
169–194.'
date_created: 2021-08-09T07:36:23Z
date_updated: 2022-01-06T06:55:47Z
department:
- _id: '153'
language:
- iso: eng
page: 169 - 194
publication: Intelligent Mechatronics
publisher: InTech Open Access Publisher
status: public
title: Hybrid Planning for Self-Optimization in Railbound Mechatronic Systems
type: book_chapter
user_id: '24876'
year: '2011'
...
---
_id: '799'
author:
- first_name: Tobias
full_name: Volkhausen, Tobias
last_name: Volkhausen
- first_name: Kai
full_name: Schinköthe, Kai
last_name: Schinköthe
- first_name: Holger
full_name: Karl, Holger
id: '126'
last_name: Karl
citation:
ama: 'Volkhausen T, Schinköthe K, Karl H. Coding Opportunities from Similar Data
in Wireless Cooperation Diversity Systems. In: IEEE 8th International Conference
on Mobile Adhoc and Sensor Systems, MASS 2011, Valencia, Spain, October 17-22,
2011. ; 2011:146--148. doi:10.1109/MASS.2011.126'
apa: Volkhausen, T., Schinköthe, K., & Karl, H. (2011). Coding Opportunities
from Similar Data in Wireless Cooperation Diversity Systems. In IEEE 8th International
Conference on Mobile Adhoc and Sensor Systems, MASS 2011, Valencia, Spain, October
17-22, 2011 (pp. 146--148). https://doi.org/10.1109/MASS.2011.126
bibtex: '@inproceedings{Volkhausen_Schinköthe_Karl_2011, title={Coding Opportunities
from Similar Data in Wireless Cooperation Diversity Systems}, DOI={10.1109/MASS.2011.126},
booktitle={IEEE 8th International Conference on Mobile Adhoc and Sensor Systems,
MASS 2011, Valencia, Spain, October 17-22, 2011}, author={Volkhausen, Tobias and
Schinköthe, Kai and Karl, Holger}, year={2011}, pages={146--148} }'
chicago: Volkhausen, Tobias, Kai Schinköthe, and Holger Karl. “Coding Opportunities
from Similar Data in Wireless Cooperation Diversity Systems.” In IEEE 8th International
Conference on Mobile Adhoc and Sensor Systems, MASS 2011, Valencia, Spain, October
17-22, 2011, 146--148, 2011. https://doi.org/10.1109/MASS.2011.126.
ieee: T. Volkhausen, K. Schinköthe, and H. Karl, “Coding Opportunities from Similar
Data in Wireless Cooperation Diversity Systems,” in IEEE 8th International
Conference on Mobile Adhoc and Sensor Systems, MASS 2011, Valencia, Spain, October
17-22, 2011, 2011, pp. 146--148.
mla: Volkhausen, Tobias, et al. “Coding Opportunities from Similar Data in Wireless
Cooperation Diversity Systems.” IEEE 8th International Conference on Mobile
Adhoc and Sensor Systems, MASS 2011, Valencia, Spain, October 17-22, 2011,
2011, pp. 146--148, doi:10.1109/MASS.2011.126.
short: 'T. Volkhausen, K. Schinköthe, H. Karl, in: IEEE 8th International Conference
on Mobile Adhoc and Sensor Systems, MASS 2011, Valencia, Spain, October 17-22,
2011, 2011, pp. 146--148.'
date_created: 2017-11-27T10:22:26Z
date_updated: 2022-01-06T07:03:48Z
department:
- _id: '75'
doi: 10.1109/MASS.2011.126
page: 146--148
project:
- _id: '20'
name: Minitarusisierte energieautarke Komponenten mit verlässlicher drahtloser Kommunikation
für die Automatisierungstechnik
publication: IEEE 8th International Conference on Mobile Adhoc and Sensor Systems,
MASS 2011, Valencia, Spain, October 17-22, 2011
status: public
title: Coding Opportunities from Similar Data in Wireless Cooperation Diversity Systems
type: conference
user_id: '15572'
year: '2011'
...
---
_id: '7354'
abstract:
- lang: eng
text: 'Acceptance testing is a time-consuming task for complex software systems
that have to fulfill a large number of requirements. To reduce this effort, we
have developed a widely automated method for deriving test plans from requirements
that are expressed in natural language. It consists of three stages: annotation,
clustering, and test plan specification. The general idea is to exploit redundancies
and implicit relationships in requirements specifications. Multi-viewpoint techniques
based on RM-ODP (Reference Model for Open Distributed Processing) are employed
for specifying the requirements. We then use linguistic analysis techniques, requirements
clustering algorithms, and pattern-based requirements collection to reduce the
total effort of testing against the requirements specification. In particular,
we use linguistic analysis for extracting and annotating the actor, process and
object of a requirements statement. During clustering, a similarity function is
computed as a measure for the overlap of requirements. In the test plan specification
stage, our approach provides capabilities for semi-automatically deriving test
plans and acceptance criteria from the clustered informal textual requirements.
Two patterns are applied to compute a suitable order of test activities. The generated
test plans consist of a sequence of test steps and asserts that are executed or
checked in the given order. We also present the supporting prototype tool TORC,
which is available open source. For the evaluation of the approach, we have conducted
a case study in the field of acceptance testing of a national electronic identification
system. In summary, we report on lessons learned how linguistic analysis and clustering
techniques can help testers in understanding the relations between requirements
and for improving test planning.'
author:
- first_name: Baris
full_name: Güldali, Baris
last_name: Güldali
- first_name: Holger
full_name: Funke, Holger
last_name: Funke
- first_name: Stefan
full_name: Sauer, Stefan
id: '447'
last_name: Sauer
- first_name: Gregor
full_name: Engels, Gregor
id: '107'
last_name: Engels
citation:
ama: 'Güldali B, Funke H, Sauer S, Engels G. TORC: test plan optimization by requirements
clustering. Software Quality Journal. 2011;19(4):771-799. doi:10.1007/s11219-011-9149-4'
apa: 'Güldali, B., Funke, H., Sauer, S., & Engels, G. (2011). TORC: test plan
optimization by requirements clustering. Software Quality Journal, 19(4),
771–799. https://doi.org/10.1007/s11219-011-9149-4'
bibtex: '@article{Güldali_Funke_Sauer_Engels_2011, title={TORC: test plan optimization
by requirements clustering}, volume={19}, DOI={10.1007/s11219-011-9149-4},
number={4}, journal={Software Quality Journal}, publisher={Springer Nature}, author={Güldali,
Baris and Funke, Holger and Sauer, Stefan and Engels, Gregor}, year={2011}, pages={771–799}
}'
chicago: 'Güldali, Baris, Holger Funke, Stefan Sauer, and Gregor Engels. “TORC:
Test Plan Optimization by Requirements Clustering.” Software Quality Journal
19, no. 4 (2011): 771–99. https://doi.org/10.1007/s11219-011-9149-4.'
ieee: 'B. Güldali, H. Funke, S. Sauer, and G. Engels, “TORC: test plan optimization
by requirements clustering,” Software Quality Journal, vol. 19, no. 4,
pp. 771–799, 2011.'
mla: 'Güldali, Baris, et al. “TORC: Test Plan Optimization by Requirements Clustering.”
Software Quality Journal, vol. 19, no. 4, Springer Nature, 2011, pp. 771–99,
doi:10.1007/s11219-011-9149-4.'
short: B. Güldali, H. Funke, S. Sauer, G. Engels, Software Quality Journal 19 (2011)
771–799.
date_created: 2019-01-31T13:00:53Z
date_updated: 2022-01-06T07:03:35Z
department:
- _id: '66'
doi: 10.1007/s11219-011-9149-4
intvolume: ' 19'
issue: '4'
language:
- iso: eng
page: 771-799
publication: Software Quality Journal
publication_identifier:
issn:
- 0963-9314
- 1573-1367
publication_status: published
publisher: Springer Nature
status: public
title: 'TORC: test plan optimization by requirements clustering'
type: journal_article
user_id: '52534'
volume: 19
year: '2011'
...
---
_id: '9765'
abstract:
- lang: eng
text: The multi-objective optimal design of a piezoelectric sandwich ultrasonic
transducer is studied. The maximum vibration amplitude and the minimum electrical
input power are considered as optimization objectives. Design variables involve
continuous variables (dimensions of the transducer) and discrete variables (material
types). Based on analytical models, the optimal design is formulated as a constrained
multi-objective optimization problem. The optimization problem is then solved
by using the elitist non-dominated sorting genetic algorithm (NSGA-II) and Pareto-optimal
designs are obtained. The optimized results are analyzed and the preferred design
is proposed. The optimization procedure presented in this contribution can be
applied in multi-objective optimization problems of other piezoelectric transducers.
author:
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Bo
full_name: Fu, Bo
last_name: Fu
- first_name: Yi
full_name: Jing, Yi
last_name: Jing
- first_name: Xuan
full_name: Fu, Xuan
last_name: Fu
citation:
ama: Hemsel T, Fu B, Jing Y, Fu X. Multi-Objective Optimization of a Piezoelectric
Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic
Algorithm. Key Engineering Materials. 2011;474-476:1808-1812. doi:10.4028/www.scientific.net/KEM.474-476.1808
apa: Hemsel, T., Fu, B., Jing, Y., & Fu, X. (2011). Multi-Objective Optimization
of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated
Sorting Genetic Algorithm. Key Engineering Materials, 474–476,
1808–1812. https://doi.org/10.4028/www.scientific.net/KEM.474-476.1808
bibtex: '@article{Hemsel_Fu_Jing_Fu_2011, title={Multi-Objective Optimization of
a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated
Sorting Genetic Algorithm}, volume={474–476}, DOI={10.4028/www.scientific.net/KEM.474-476.1808},
journal={Key Engineering Materials}, publisher={Trans Tech Publ}, author={Hemsel,
Tobias and Fu, Bo and Jing, Yi and Fu, Xuan}, year={2011}, pages={1808–1812} }'
chicago: 'Hemsel, Tobias, Bo Fu, Yi Jing, and Xuan Fu. “Multi-Objective Optimization
of a Piezoelectric Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated
Sorting Genetic Algorithm.” Key Engineering Materials 474–476 (2011): 1808–12.
https://doi.org/10.4028/www.scientific.net/KEM.474-476.1808.'
ieee: T. Hemsel, B. Fu, Y. Jing, and X. Fu, “Multi-Objective Optimization of a Piezoelectric
Sandwich Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic
Algorithm,” Key Engineering Materials, vol. 474–476, pp. 1808–1812, 2011.
mla: Hemsel, Tobias, et al. “Multi-Objective Optimization of a Piezoelectric Sandwich
Ultrasonic Transducer by Using Elitist Non-Dominated Sorting Genetic Algorithm.”
Key Engineering Materials, vol. 474–476, Trans Tech Publ, 2011, pp. 1808–12,
doi:10.4028/www.scientific.net/KEM.474-476.1808.
short: T. Hemsel, B. Fu, Y. Jing, X. Fu, Key Engineering Materials 474–476 (2011)
1808–1812.
date_created: 2019-05-13T10:54:42Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.4028/www.scientific.net/KEM.474-476.1808
language:
- iso: eng
page: 1808-1812
publication: Key Engineering Materials
publisher: Trans Tech Publ
quality_controlled: '1'
status: public
title: Multi-Objective Optimization of a Piezoelectric Sandwich Ultrasonic Transducer
by Using Elitist Non-Dominated Sorting Genetic Algorithm
type: journal_article
user_id: '55222'
volume: 474 - 476
year: '2011'
...
---
_id: '9771'
abstract:
- lang: eng
text: "Dieser Beitrag stellt ein Konzept vor, welches die Methode der Mehrzieloptimierung
mit einer Online-Bewertung des aktuellen Systemzustands kombiniert. Dieses erlaubt
Maßnahmen zur Zuverlässigkeitssteigerung abzuleiten. Das Konzept wird auf ein
X-by-wire-Fahrzeug mit Einzelradaktorik angewandt. Dabei steht zunächst die Beeinflussung
der Ziele der Mehrzieloptimierung zugunsten der Zuverlässigkeit des Systems im
Vordergrund. In Simulationen wird gezeigt, dass über die Wahl und Gewichtung der
Zielfunktionen die Quer- und Längskräfte an den Rädern vorteilhaft verteilt werden
können. \r\n\r\nIn this contribution a concept is illustrated, which combines
the multi-objective optimization technique with an online assessment of the current
system state. This allows deriving measures to increase the reliability of the
system. The concept is applied to an X-by-wire vehicle with single-wheel actuators.
The emphasis is here mostly on the influence of the objectives of the multiobjective
optimization for the benefit of the reliability of the system. It is demonstrated
in simulations, that the lateral and longitudinal forces at the wheels can be
distributed advantageously by the selection of the suitable objective functions
and the appropriate weights."
author:
- first_name: Christoph
full_name: Sondermann-Wölke, Christoph
last_name: Sondermann-Wölke
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Peter
full_name: Reinold, Peter
last_name: Reinold
- first_name: Ansgar
full_name: Trächtler, Ansgar
last_name: Trächtler
citation:
ama: 'Sondermann-Wölke C, Sextro W, Reinold P, Trächtler A. Zuverlässigkeitsorientierte
Mehrzieloptimierung zur Aktorrekonfiguration eines X-by-wire-Fahrzeugs. In: 25.
Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger
Produkte. Leonberg; 2011:291-302.'
apa: Sondermann-Wölke, C., Sextro, W., Reinold, P., & Trächtler, A. (2011).
Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration eines
X-by-wire-Fahrzeugs. In 25. Tagung Technische Zuverlässigkeit (TTZ 2011) -
Entwicklung und Betrieb zuverlässiger Produkte (pp. 291–302). Leonberg.
bibtex: '@inproceedings{Sondermann-Wölke_Sextro_Reinold_Trächtler_2011, place={Leonberg},
title={Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration
eines X-by-wire-Fahrzeugs}, booktitle={25. Tagung Technische Zuverlässigkeit (TTZ
2011) - Entwicklung und Betrieb zuverlässiger Produkte}, author={Sondermann-Wölke,
Christoph and Sextro, Walter and Reinold, Peter and Trächtler, Ansgar}, year={2011},
pages={291–302} }'
chicago: Sondermann-Wölke, Christoph, Walter Sextro, Peter Reinold, and Ansgar Trächtler.
“Zuverlässigkeitsorientierte Mehrzieloptimierung Zur Aktorrekonfiguration Eines
X-by-Wire-Fahrzeugs.” In 25. Tagung Technische Zuverlässigkeit (TTZ 2011) -
Entwicklung Und Betrieb Zuverlässiger Produkte, 291–302. Leonberg, 2011.
ieee: C. Sondermann-Wölke, W. Sextro, P. Reinold, and A. Trächtler, “Zuverlässigkeitsorientierte
Mehrzieloptimierung zur Aktorrekonfiguration eines X-by-wire-Fahrzeugs,” in 25.
Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb zuverlässiger
Produkte, 2011, pp. 291–302.
mla: Sondermann-Wölke, Christoph, et al. “Zuverlässigkeitsorientierte Mehrzieloptimierung
Zur Aktorrekonfiguration Eines X-by-Wire-Fahrzeugs.” 25. Tagung Technische
Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger Produkte,
2011, pp. 291–302.
short: 'C. Sondermann-Wölke, W. Sextro, P. Reinold, A. Trächtler, in: 25. Tagung
Technische Zuverlässigkeit (TTZ 2011) - Entwicklung Und Betrieb Zuverlässiger
Produkte, Leonberg, 2011, pp. 291–302.'
date_created: 2019-05-13T11:04:04Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
language:
- iso: eng
page: 291-302
place: Leonberg
publication: 25. Tagung Technische Zuverlässigkeit (TTZ 2011) - Entwicklung und Betrieb
zuverlässiger Produkte
status: public
title: Zuverlässigkeitsorientierte Mehrzieloptimierung zur Aktorrekonfiguration eines
X-by-wire-Fahrzeugs
type: conference
user_id: '55222'
year: '2011'
...
---
_id: '9772'
abstract:
- lang: eng
text: 'A profound description of friction in wheel--rail contact plays an essential
role for optimization of traction control strategies, as input quantity for railway
simulations in general and for the estimation of wear and rolling contact fatigue.
A multitude of wheel--rail contact models exists, however, traction--creepage
curves obtained from measurements show quantitative and qualitative deviations.
There are several phenomena which influence the traction--creepage characteristics:
Mechanisms resulting from surface roughness, frictional heating or the presence
of interfacial fluids can have a dominating influence on friction. In this paper,
a new wheel--rail contact model, accounting for these influential parameters,
will be presented. The presented model accounts for the interaction of an interfacial
fluid model for combined boundary and mixed lubrication of rough surfaces with
a wheel--rail contact model that additionally accounts for frictional heating.
A quantitative comparison with measurements found in the literature is not conducted,
since the exact conditions of the measurements are mostly unknown and parameters
can easily be adjusted to fit the measurements. Emphasis is placed on the qualitative
behavior of the model with respect to the measurements and good agreement is found.
The dependence of the maximum traction coefficient on rolling velocity, surface
roughness and normal load is studied under dry and water lubricated conditions.'
author:
- first_name: Christoph
full_name: Tomberger, Christoph
last_name: Tomberger
- first_name: Peter
full_name: Dietmaier, Peter
last_name: Dietmaier
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Klaus
full_name: Six, Klaus
last_name: Six
citation:
ama: 'Tomberger C, Dietmaier P, Sextro W, Six K. Friction in wheel--rail contact:
A model comprising interfacial fluids, surface roughness and temperature. Wear.
2011;271:2-12. doi:10.1016/j.wear.2010.10.025'
apa: 'Tomberger, C., Dietmaier, P., Sextro, W., & Six, K. (2011). Friction in
wheel--rail contact: A model comprising interfacial fluids, surface roughness
and temperature. Wear, 271, 2–12. https://doi.org/10.1016/j.wear.2010.10.025'
bibtex: '@article{Tomberger_Dietmaier_Sextro_Six_2011, title={Friction in wheel--rail
contact: A model comprising interfacial fluids, surface roughness and temperature},
volume={271}, DOI={10.1016/j.wear.2010.10.025},
journal={Wear}, author={Tomberger, Christoph and Dietmaier, Peter and Sextro,
Walter and Six, Klaus}, year={2011}, pages={2–12} }'
chicago: 'Tomberger, Christoph, Peter Dietmaier, Walter Sextro, and Klaus Six. “Friction
in Wheel--Rail Contact: A Model Comprising Interfacial Fluids, Surface Roughness
and Temperature.” Wear 271 (2011): 2–12. https://doi.org/10.1016/j.wear.2010.10.025.'
ieee: 'C. Tomberger, P. Dietmaier, W. Sextro, and K. Six, “Friction in wheel--rail
contact: A model comprising interfacial fluids, surface roughness and temperature,”
Wear, vol. 271, pp. 2–12, 2011.'
mla: 'Tomberger, Christoph, et al. “Friction in Wheel--Rail Contact: A Model Comprising
Interfacial Fluids, Surface Roughness and Temperature.” Wear, vol. 271,
2011, pp. 2–12, doi:10.1016/j.wear.2010.10.025.'
short: C. Tomberger, P. Dietmaier, W. Sextro, K. Six, Wear 271 (2011) 2–12.
date_created: 2019-05-13T11:08:32Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1016/j.wear.2010.10.025
intvolume: ' 271'
keyword:
- Wheel--rail contact
- Rolling contact
- Friction
- Interfacial fluid
- Lubrication
- Surface roughness
- Contact temperature
language:
- iso: eng
page: 2 - 12
publication: Wear
publication_identifier:
issn:
- 0043-1648
quality_controlled: '1'
status: public
title: 'Friction in wheel--rail contact: A model comprising interfacial fluids, surface
roughness and temperature'
type: journal_article
user_id: '55222'
volume: 271
year: '2011'
...
---
_id: '16629'
author:
- first_name: Martin
full_name: Krüger, Martin
last_name: Krüger
- first_name: Katrin
full_name: Witting, Katrin
last_name: Witting
- first_name: Ansgar
full_name: Trächtler, Ansgar
last_name: Trächtler
- first_name: Michael
full_name: Dellnitz, Michael
last_name: Dellnitz
citation:
ama: Krüger M, Witting K, Trächtler A, Dellnitz M. Parametric Model-Order Reduction
in Hierarchical Multiobjective Optimization of Mechatronic Systems*. IFAC Proceedings
Volumes. 2011:12611-12619. doi:10.3182/20110828-6-it-1002.02487
apa: Krüger, M., Witting, K., Trächtler, A., & Dellnitz, M. (2011). Parametric
Model-Order Reduction in Hierarchical Multiobjective Optimization of Mechatronic
Systems*. IFAC Proceedings Volumes, 12611–12619. https://doi.org/10.3182/20110828-6-it-1002.02487
bibtex: '@article{Krüger_Witting_Trächtler_Dellnitz_2011, title={Parametric Model-Order
Reduction in Hierarchical Multiobjective Optimization of Mechatronic Systems*},
DOI={10.3182/20110828-6-it-1002.02487},
journal={IFAC Proceedings Volumes}, author={Krüger, Martin and Witting, Katrin
and Trächtler, Ansgar and Dellnitz, Michael}, year={2011}, pages={12611–12619}
}'
chicago: Krüger, Martin, Katrin Witting, Ansgar Trächtler, and Michael Dellnitz.
“Parametric Model-Order Reduction in Hierarchical Multiobjective Optimization
of Mechatronic Systems*.” IFAC Proceedings Volumes, 2011, 12611–19. https://doi.org/10.3182/20110828-6-it-1002.02487.
ieee: M. Krüger, K. Witting, A. Trächtler, and M. Dellnitz, “Parametric Model-Order
Reduction in Hierarchical Multiobjective Optimization of Mechatronic Systems*,”
IFAC Proceedings Volumes, pp. 12611–12619, 2011.
mla: Krüger, Martin, et al. “Parametric Model-Order Reduction in Hierarchical Multiobjective
Optimization of Mechatronic Systems*.” IFAC Proceedings Volumes, 2011,
pp. 12611–19, doi:10.3182/20110828-6-it-1002.02487.
short: M. Krüger, K. Witting, A. Trächtler, M. Dellnitz, IFAC Proceedings Volumes
(2011) 12611–12619.
date_created: 2020-04-16T08:25:21Z
date_updated: 2022-01-06T06:52:53Z
department:
- _id: '101'
doi: 10.3182/20110828-6-it-1002.02487
language:
- iso: eng
page: 12611-12619
publication: IFAC Proceedings Volumes
publication_identifier:
issn:
- 1474-6670
publication_status: published
status: public
title: Parametric Model-Order Reduction in Hierarchical Multiobjective Optimization
of Mechatronic Systems*
type: journal_article
user_id: '15701'
year: '2011'
...
---
_id: '14016'
abstract:
- lang: eng
text: There has been a lot of progress in finding measurable quantities of high
in- formation content for the inverse determination of piezoelectric material
properties. Since some material parameters (mainly \textgreek{e}S 11, e15and cE
44) do not or only marginally influence the electrical impedance over frequency,
it is not sufficient to look only at the electri- cal impedance of discoidal piezoceramics
[1]. Moreover, the parameter sensitivities vary with respect to the diameter--thickness
ratio of the disc and the design of an ultrasonic transducer's piezoceramic has
to match other requirements than those of a good material characterization [2,
3]. That is why it is still desirable to find model based approaches for parameter
identification that either keep the technical effort low (e.g., only an impedance
measurement) or increase speed of the inversion procedure. In this contribution
we answer the question if an additional analytical approximation of cE 44, strictly
following the ideas of Theocaris [4], in conjunction with a single measured elec-
trical impedance will be sufficient for an accurate simulation of both, electrical
impedance and surface normal velocity of a piezoceramic disc. Thereby, the remaining
parameters are identified by means of the Inverse Method. Furthermore, we use
the parameter ap- proximation as an initial guess and limiting boundary to speed
up the inverse algorithm if both, electrical impedance and surface normal velocity
are taken into account within the optimization procedure.
author:
- first_name: Jens
full_name: Rautenberg, Jens
last_name: Rautenberg
- first_name: Stefan J.
full_name: Rupitsch, Stefan J.
last_name: Rupitsch
- first_name: Bernd
full_name: Henning, Bernd
id: '213'
last_name: Henning
- first_name: Reinhard
full_name: Lerch, Reinhard
last_name: Lerch
citation:
ama: 'Rautenberg J, Rupitsch SJ, Henning B, Lerch R. Utilizing an Analytical Approximation
for c44E to Enhance the Inverse Method for Material Parameter Identification of
Piezoceramics. In: 7th International Workshop on Direct and Inverse Problems
in Piezoelectricity. ; 2011.'
apa: Rautenberg, J., Rupitsch, S. J., Henning, B., & Lerch, R. (2011). Utilizing
an Analytical Approximation for c44E to Enhance the Inverse Method for Material
Parameter Identification of Piezoceramics. In 7th International Workshop on
Direct and Inverse Problems in Piezoelectricity.
bibtex: '@inproceedings{Rautenberg_Rupitsch_Henning_Lerch_2011, title={Utilizing
an Analytical Approximation for c44E to Enhance the Inverse Method for Material
Parameter Identification of Piezoceramics}, booktitle={7th International Workshop
on Direct and Inverse Problems in Piezoelectricity}, author={Rautenberg, Jens
and Rupitsch, Stefan J. and Henning, Bernd and Lerch, Reinhard}, year={2011} }'
chicago: Rautenberg, Jens, Stefan J. Rupitsch, Bernd Henning, and Reinhard Lerch.
“Utilizing an Analytical Approximation for C44E to Enhance the Inverse Method
for Material Parameter Identification of Piezoceramics.” In 7th International
Workshop on Direct and Inverse Problems in Piezoelectricity, 2011.
ieee: J. Rautenberg, S. J. Rupitsch, B. Henning, and R. Lerch, “Utilizing an Analytical
Approximation for c44E to Enhance the Inverse Method for Material Parameter Identification
of Piezoceramics,” in 7th International Workshop on Direct and Inverse Problems
in Piezoelectricity, 2011.
mla: Rautenberg, Jens, et al. “Utilizing an Analytical Approximation for C44E to
Enhance the Inverse Method for Material Parameter Identification of Piezoceramics.”
7th International Workshop on Direct and Inverse Problems in Piezoelectricity,
2011.
short: 'J. Rautenberg, S.J. Rupitsch, B. Henning, R. Lerch, in: 7th International
Workshop on Direct and Inverse Problems in Piezoelectricity, 2011.'
date_created: 2019-10-25T12:54:40Z
date_updated: 2022-01-06T06:51:49Z
department:
- _id: '49'
language:
- iso: eng
publication: 7th International Workshop on Direct and Inverse Problems in Piezoelectricity
status: public
title: Utilizing an Analytical Approximation for c44E to Enhance the Inverse Method
for Material Parameter Identification of Piezoceramics
type: conference
user_id: '15911'
year: '2011'
...
---
_id: '14550'
abstract:
- lang: eng
text: For many applications like level measurement and industry robotics it is of
advantage if the directional characteristic of an ultrasonic transducer is changeable
or adaptable for the improvement of spatial resolution. Often this goal is reached
with the use of ultrasonic transducer arrays, which elements are driven with phase
shifted excitation signals. One disadvantage of these solutions is the great effort
for building such an array and the multi-channel sensor electronics. In this contribution
the directional characteristic of a single air transducer with segmented electrodes
is analyzed. Therefore a variable script based finite element model is used to
discover the influence of different electrode configurations on the directional
characteristic of a single piezoceramic transducer. Especially the influence on
the angle of beam and the near field length are evaluated. The used variable model
permits an optimization of the configuration with regards to the mentioned criteria.
The findings will be used for the development of a level measurement system for
bulk solids.
author:
- first_name: Carsten
full_name: Unverzagt, Carsten
last_name: Unverzagt
- first_name: Bernd
full_name: Henning, Bernd
id: '213'
last_name: Henning
citation:
ama: 'Unverzagt C, Henning B. Finite element simulation of single ultrasonic transducer
with segmented electrodes to adjust the directional characteristic. In: ; 2011.'
apa: Unverzagt, C., & Henning, B. (2011). Finite element simulation of single
ultrasonic transducer with segmented electrodes to adjust the directional characteristic.
Presented at the International Congress on Ultrasonics (ICU 2011), Gdansk, Poland.
bibtex: '@inproceedings{Unverzagt_Henning_2011, title={Finite element simulation
of single ultrasonic transducer with segmented electrodes to adjust the directional
characteristic}, author={Unverzagt, Carsten and Henning, Bernd}, year={2011} }'
chicago: Unverzagt, Carsten, and Bernd Henning. “Finite Element Simulation of Single
Ultrasonic Transducer with Segmented Electrodes to Adjust the Directional Characteristic,”
2011.
ieee: C. Unverzagt and B. Henning, “Finite element simulation of single ultrasonic
transducer with segmented electrodes to adjust the directional characteristic,”
presented at the International Congress on Ultrasonics (ICU 2011), Gdansk, Poland,
2011.
mla: Unverzagt, Carsten, and Bernd Henning. Finite Element Simulation of Single
Ultrasonic Transducer with Segmented Electrodes to Adjust the Directional Characteristic.
2011.
short: 'C. Unverzagt, B. Henning, in: 2011.'
conference:
end_date: 08.09.2011
location: Gdansk, Poland
name: International Congress on Ultrasonics (ICU 2011)
start_date: 05.09.2011
date_created: 2019-11-05T14:57:17Z
date_updated: 2022-01-06T06:52:02Z
department:
- _id: '49'
keyword:
- Elektrode
language:
- iso: eng
status: public
title: Finite element simulation of single ultrasonic transducer with segmented electrodes
to adjust the directional characteristic
type: conference
user_id: '15911'
year: '2011'
...
---
_id: '29464'
author:
- first_name: A.
full_name: Moore, A.
last_name: Moore
- first_name: Sina
full_name: Ober-Blöbaum, Sina
id: '16494'
last_name: Ober-Blöbaum
- first_name: J.E.
full_name: Marsden, J.E.
last_name: Marsden
citation:
ama: 'Moore A, Ober-Blöbaum S, Marsden JE. Mesh refinement strategies for spacecraft
trajectory optimization using discrete mechanics and optimal control. In: 21st
AAS/AIAA Space Flight Mechanics Meeting. ; 2011.'
apa: Moore, A., Ober-Blöbaum, S., & Marsden, J. E. (2011). Mesh refinement strategies
for spacecraft trajectory optimization using discrete mechanics and optimal control.
21st AAS/AIAA Space Flight Mechanics Meeting.
bibtex: '@inproceedings{Moore_Ober-Blöbaum_Marsden_2011, title={Mesh refinement
strategies for spacecraft trajectory optimization using discrete mechanics and
optimal control}, booktitle={21st AAS/AIAA Space Flight Mechanics Meeting}, author={Moore,
A. and Ober-Blöbaum, Sina and Marsden, J.E.}, year={2011} }'
chicago: Moore, A., Sina Ober-Blöbaum, and J.E. Marsden. “Mesh Refinement Strategies
for Spacecraft Trajectory Optimization Using Discrete Mechanics and Optimal Control.”
In 21st AAS/AIAA Space Flight Mechanics Meeting, 2011.
ieee: A. Moore, S. Ober-Blöbaum, and J. E. Marsden, “Mesh refinement strategies
for spacecraft trajectory optimization using discrete mechanics and optimal control,”
New Orleans, Lousiana, USA, 2011.
mla: Moore, A., et al. “Mesh Refinement Strategies for Spacecraft Trajectory Optimization
Using Discrete Mechanics and Optimal Control.” 21st AAS/AIAA Space Flight Mechanics
Meeting, 2011.
short: 'A. Moore, S. Ober-Blöbaum, J.E. Marsden, in: 21st AAS/AIAA Space Flight
Mechanics Meeting, 2011.'
conference:
end_date: 2011-02-17
location: New Orleans, Lousiana, USA
start_date: 2011-02-13
date_created: 2022-01-19T13:54:15Z
date_updated: 2022-01-24T14:30:33Z
department:
- _id: '636'
language:
- iso: eng
publication: 21st AAS/AIAA Space Flight Mechanics Meeting
status: public
title: Mesh refinement strategies for spacecraft trajectory optimization using discrete
mechanics and optimal control
type: conference
user_id: '15694'
year: '2011'
...
---
_id: '26371'
alternative_title:
- Innovation in Product and Production, 21st International Conference on Production
Research
author:
- first_name: Yudong
full_name: Xue, Yudong
last_name: Xue
- first_name: Takashi
full_name: ' Irohara, Takashi'
last_name: ' Irohara'
- first_name: ' Benjamin'
full_name: Kl{\"o}pper, Benjamin
last_name: Kl{\"o}pper
- first_name: Jan-Patrick
full_name: Pater, Jan-Patrick
last_name: Pater
citation:
ama: Xue Y, Irohara T, Kl{\"o}pper Benjamin, Pater J-P. CO2-Emmission
aware pareto optimization for international transportation with time tables. Published
online 2011.
apa: Xue, Y., Irohara, T., Kl{\"o}pper, Benjamin, & Pater, J.-P. (2011). CO2-Emmission
aware pareto optimization for international transportation with time tables.
bibtex: '@article{Xue_ Irohara_Kl{\"o}pper_Pater_2011, series={21st International
Conference on Production Research}, title={CO2-Emmission aware pareto
optimization for international transportation with time tables}, author={Xue,
Yudong and Irohara, Takashi and Kl{\"o}pper, Benjamin and Pater, Jan-Patrick},
year={2011}, collection={21st International Conference on Production Research}
}'
chicago: Xue, Yudong, Takashi Irohara, Benjamin Kl{\"o}pper, and Jan-Patrick Pater.
“CO2-Emmission Aware Pareto Optimization for International Transportation
with Time Tables.” 21st International Conference on Production Research, 2011.
ieee: Y. Xue, T. Irohara, Benjamin Kl{\"o}pper, and J.-P. Pater, “CO2-Emmission
aware pareto optimization for international transportation with time tables.”
2011.
mla: Xue, Yudong, et al. CO2-Emmission Aware Pareto Optimization for
International Transportation with Time Tables. 2011.
short: Y. Xue, T. Irohara, Benjamin Kl{\"o}pper, J.-P. Pater, (2011).
conference:
end_date: 2011-08-04
start_date: 2011-07-31
date_created: 2021-10-16T16:42:09Z
date_updated: 2022-01-25T18:14:18Z
department:
- _id: '671'
language:
- iso: eng
publication_status: published
series_title: 21st International Conference on Production Research
status: public
title: CO²-Emmission aware pareto optimization for international transportation with
time tables
type: conference
user_id: '71124'
year: '2011'
...