---
_id: '4551'
abstract:
- lang: eng
text: An intentional positioning of optically active quantum dots using site-selective
growth by a combination of molecular beam epitaxy (MBE) and focused ion beam (FIB)
implantation in an all-ultra-high-vacuum (UHV) setup has been successfully demonstrated.
A square array of periodic holes on GaAs substrate was fabricated with FIB of
30 keV ions followed by an in situ annealing step. Subsequently, the patterned
holes were overgrown with an optimized amount of InAs in order to achieve site-selective
growth of the QDs on the patterned holes. Under well-optimized conditions, a selectivity
of single quantum dot growth in the patterned holes of 52% was achieved. Thereafter,
carrier injection and subsequent radiative recombination from the positioned InAs/GaAs
self-assembled QDs was investigated by embedding the QDs in the intrinsic part
of a GaAs-based p–i–n junction device. Electroluminescence spectra taken at 77
K show interband transitions up to the fifth excited state from the QDs.
article_type: original
author:
- first_name: Minisha
full_name: Mehta, Minisha
last_name: Mehta
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Alexander
full_name: Melnikov, Alexander
last_name: Melnikov
- first_name: Andreas D.
full_name: Wieck, Andreas D.
last_name: Wieck
- first_name: Steffen
full_name: Michaelis de Vasconcellos, Steffen
last_name: Michaelis de Vasconcellos
- first_name: Tim
full_name: Baumgarten, Tim
last_name: Baumgarten
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: 'Mehta M, Reuter D, Melnikov A, et al. Intentionally positioned self-assembled
InAs quantum dots in an electroluminescent p–i–n junction diode. Physica E:
Low-dimensional Systems and Nanostructures. 2010;42(10):2749-2752. doi:10.1016/j.physe.2009.12.053'
apa: 'Mehta, M., Reuter, D., Melnikov, A., Wieck, A. D., Michaelis de Vasconcellos,
S., Baumgarten, T., … Meier, C. (2010). Intentionally positioned self-assembled
InAs quantum dots in an electroluminescent p–i–n junction diode. Physica E:
Low-Dimensional Systems and Nanostructures, 42(10), 2749–2752. https://doi.org/10.1016/j.physe.2009.12.053'
bibtex: '@article{Mehta_Reuter_Melnikov_Wieck_Michaelis de Vasconcellos_Baumgarten_Zrenner_Meier_2010,
title={Intentionally positioned self-assembled InAs quantum dots in an electroluminescent
p–i–n junction diode}, volume={42}, DOI={10.1016/j.physe.2009.12.053},
number={10}, journal={Physica E: Low-dimensional Systems and Nanostructures},
publisher={Elsevier BV}, author={Mehta, Minisha and Reuter, Dirk and Melnikov,
Alexander and Wieck, Andreas D. and Michaelis de Vasconcellos, Steffen and Baumgarten,
Tim and Zrenner, Artur and Meier, Cedrik}, year={2010}, pages={2749–2752} }'
chicago: 'Mehta, Minisha, Dirk Reuter, Alexander Melnikov, Andreas D. Wieck, Steffen
Michaelis de Vasconcellos, Tim Baumgarten, Artur Zrenner, and Cedrik Meier. “Intentionally
Positioned Self-Assembled InAs Quantum Dots in an Electroluminescent p–i–n Junction
Diode.” Physica E: Low-Dimensional Systems and Nanostructures 42, no. 10
(2010): 2749–52. https://doi.org/10.1016/j.physe.2009.12.053.'
ieee: 'M. Mehta et al., “Intentionally positioned self-assembled InAs quantum
dots in an electroluminescent p–i–n junction diode,” Physica E: Low-dimensional
Systems and Nanostructures, vol. 42, no. 10, pp. 2749–2752, 2010.'
mla: 'Mehta, Minisha, et al. “Intentionally Positioned Self-Assembled InAs Quantum
Dots in an Electroluminescent p–i–n Junction Diode.” Physica E: Low-Dimensional
Systems and Nanostructures, vol. 42, no. 10, Elsevier BV, 2010, pp. 2749–52,
doi:10.1016/j.physe.2009.12.053.'
short: 'M. Mehta, D. Reuter, A. Melnikov, A.D. Wieck, S. Michaelis de Vasconcellos,
T. Baumgarten, A. Zrenner, C. Meier, Physica E: Low-Dimensional Systems and Nanostructures
42 (2010) 2749–2752.'
date_created: 2018-09-20T12:42:40Z
date_updated: 2022-01-06T07:01:09Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
- _id: '287'
doi: 10.1016/j.physe.2009.12.053
intvolume: ' 42'
issue: '10'
keyword:
- Molecular beam epitaxy
- Focused ion beam
- Self-assembled quantum dot
- Electroluminescence
language:
- iso: eng
page: 2749-2752
publication: 'Physica E: Low-dimensional Systems and Nanostructures'
publication_identifier:
issn:
- 1386-9477
publication_status: published
publisher: Elsevier BV
status: public
title: Intentionally positioned self-assembled InAs quantum dots in an electroluminescent
p–i–n junction diode
type: journal_article
user_id: '20798'
volume: 42
year: '2010'
...
---
_id: '9760'
abstract:
- lang: eng
text: Self-optimizing systems are able to adapt their behavior autonomously according
to their current self-determined objectives. Unforeseen influences could lead
to dependability-critical behavior of the system. Methods are required which secure
self-optimizing systems during operation. These methods to increase the dependability
of the system should already be taken into consideration in the design process.
This paper presents a guideline for the dependability-oriented design of self-optimizing
systems, which integrates established classical methods like failure mode and
effects analysis as well as methods based on self-optimization. On the one hand
self-optimization is used to increase the dependability of the system by integrating
objectives like safety, availability, and reliability to the objectives of the
system. On the other hand methods are required to ensure the self-optimization
itself. As basis for this guideline serves the principle solution of the system.
The six phases of the guideline extend the design process and lead to an enhanced
principle solution. Additionally, the guideline illustrates phases to implement
and validate the self-optimizing system. The proposed guideline is applied to
an innovative rail-bound vehicle, called RailCab, which is equipped with self-optimizing
function modules.
author:
- first_name: Christoph
full_name: Sondermann-Wölke, Christoph
last_name: Sondermann-Wölke
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Jürgen
full_name: Gausemeier, Jürgen
last_name: Gausemeier
- first_name: Sebastian
full_name: Pook, Sebastian
last_name: Pook
citation:
ama: 'Sondermann-Wölke C, Hemsel T, Sextro W, Gausemeier J, Pook S. Guideline for
the dependability-oriented design of self-optimizing systems. In: Industrial
Informatics (INDIN), 2010 8th IEEE International Conference On. ; 2010:739-744.
doi:10.1109/INDIN.2010.5549490'
apa: Sondermann-Wölke, C., Hemsel, T., Sextro, W., Gausemeier, J., & Pook, S.
(2010). Guideline for the dependability-oriented design of self-optimizing systems.
In Industrial Informatics (INDIN), 2010 8th IEEE International Conference on
(pp. 739–744). https://doi.org/10.1109/INDIN.2010.5549490
bibtex: '@inproceedings{Sondermann-Wölke_Hemsel_Sextro_Gausemeier_Pook_2010, title={Guideline
for the dependability-oriented design of self-optimizing systems}, DOI={10.1109/INDIN.2010.5549490},
booktitle={Industrial Informatics (INDIN), 2010 8th IEEE International Conference
on}, author={Sondermann-Wölke, Christoph and Hemsel, Tobias and Sextro, Walter
and Gausemeier, Jürgen and Pook, Sebastian}, year={2010}, pages={739–744} }'
chicago: Sondermann-Wölke, Christoph, Tobias Hemsel, Walter Sextro, Jürgen Gausemeier,
and Sebastian Pook. “Guideline for the Dependability-Oriented Design of Self-Optimizing
Systems.” In Industrial Informatics (INDIN), 2010 8th IEEE International Conference
On, 739–44, 2010. https://doi.org/10.1109/INDIN.2010.5549490.
ieee: C. Sondermann-Wölke, T. Hemsel, W. Sextro, J. Gausemeier, and S. Pook, “Guideline
for the dependability-oriented design of self-optimizing systems,” in Industrial
Informatics (INDIN), 2010 8th IEEE International Conference on, 2010, pp.
739–744.
mla: Sondermann-Wölke, Christoph, et al. “Guideline for the Dependability-Oriented
Design of Self-Optimizing Systems.” Industrial Informatics (INDIN), 2010 8th
IEEE International Conference On, 2010, pp. 739–44, doi:10.1109/INDIN.2010.5549490.
short: 'C. Sondermann-Wölke, T. Hemsel, W. Sextro, J. Gausemeier, S. Pook, in: Industrial
Informatics (INDIN), 2010 8th IEEE International Conference On, 2010, pp. 739–744.'
date_created: 2019-05-13T10:25:26Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1109/INDIN.2010.5549490
keyword:
- RailCab
- dependability-critical behavior
- dependability-oriented design
- failure mode
- rail-bound vehicle
- secure self-optimizing systems
- self-optimizing function modules
- optimisation
- railways
- self-adjusting systems
language:
- iso: eng
page: 739 -744
publication: Industrial Informatics (INDIN), 2010 8th IEEE International Conference
on
quality_controlled: '1'
status: public
title: Guideline for the dependability-oriented design of self-optimizing systems
type: conference
user_id: '55222'
year: '2010'
...
---
_id: '9763'
abstract:
- lang: eng
text: Recent advances in information processing enable new kinds of technical systems,
called self-optimizing systems. These systems are able to adapt their objectives
and their behavior according to the current situation and influences autonomously.
This behavior adaptation is non-deterministic and hence self-optimization is a
risk to the system, e.g. if the result of the self-optimization process does not
match the suddenly changed situation. In contrary, self-optimization could be
used to increase the dependability by pursuing objectives like reliability and
availability. In our preceding publications we introduced the so called multi-level
dependability concept to cope with this new kind of systems (cf. [6]). This concept
comprises the monitoring of the system behavior, the classification of the current
situation, and the selection of the appropriate measure, if reliability limits
are exceeded. In this paper we present for the first time experimental results.
The dependability concept is implemented in the self-optimizing active guidance
system of a railway vehicle. The test drives illustrate clearly that the proposed
concept is able to cope with, e.g., sensor failures, and is able to increase the
reliability and availability of the active guidance module.
author:
- first_name: Christoph
full_name: Sondermann-Wölke, Christoph
last_name: Sondermann-Wölke
- first_name: Jens
full_name: Geisler, Jens
last_name: Geisler
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: 'Sondermann-Wölke C, Geisler J, Sextro W. Increasing the reliability of a self-optimizing
railway guidance system. In: Reliability and Maintainability Symposium (RAMS),
2010 Proceedings - Annual. ; 2010:1-6. doi:10.1109/RAMS.2010.5448080'
apa: Sondermann-Wölke, C., Geisler, J., & Sextro, W. (2010). Increasing the
reliability of a self-optimizing railway guidance system. In Reliability and
Maintainability Symposium (RAMS), 2010 Proceedings - Annual (pp. 1–6). https://doi.org/10.1109/RAMS.2010.5448080
bibtex: '@inproceedings{Sondermann-Wölke_Geisler_Sextro_2010, title={Increasing
the reliability of a self-optimizing railway guidance system}, DOI={10.1109/RAMS.2010.5448080},
booktitle={Reliability and Maintainability Symposium (RAMS), 2010 Proceedings
- Annual}, author={Sondermann-Wölke, Christoph and Geisler, Jens and Sextro, Walter},
year={2010}, pages={1–6} }'
chicago: Sondermann-Wölke, Christoph, Jens Geisler, and Walter Sextro. “Increasing
the Reliability of a Self-Optimizing Railway Guidance System.” In Reliability
and Maintainability Symposium (RAMS), 2010 Proceedings - Annual, 1–6, 2010.
https://doi.org/10.1109/RAMS.2010.5448080.
ieee: C. Sondermann-Wölke, J. Geisler, and W. Sextro, “Increasing the reliability
of a self-optimizing railway guidance system,” in Reliability and Maintainability
Symposium (RAMS), 2010 Proceedings - Annual, 2010, pp. 1–6.
mla: Sondermann-Wölke, Christoph, et al. “Increasing the Reliability of a Self-Optimizing
Railway Guidance System.” Reliability and Maintainability Symposium (RAMS),
2010 Proceedings - Annual, 2010, pp. 1–6, doi:10.1109/RAMS.2010.5448080.
short: 'C. Sondermann-Wölke, J. Geisler, W. Sextro, in: Reliability and Maintainability
Symposium (RAMS), 2010 Proceedings - Annual, 2010, pp. 1–6.'
date_created: 2019-05-13T10:35:39Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1109/RAMS.2010.5448080
keyword:
- availability
- dependability concept
- multilevel dependability concept
- railway vehicle
- reliability
- self optimizing active guidance system
- self optimizing railway guidance system
- situation classification
- system behavior monitoring
- optimal control
- railways
- reliability theory
- self-adjusting systems
language:
- iso: eng
page: 1 -6
publication: Reliability and Maintainability Symposium (RAMS), 2010 Proceedings -
Annual
publication_identifier:
issn:
- 0149-144X
quality_controlled: '1'
status: public
title: Increasing the reliability of a self-optimizing railway guidance system
type: conference
user_id: '55222'
year: '2010'
...
---
_id: '46405'
abstract:
- lang: eng
text: 'We present methods to answer two basic questions that arise when benchmarking
optimization algorithms. The first one is: which algorithm is the ’best’ one?
and the second one: which algorithm should I use for my real world problem? Both
are connected and neither is easy to answer. We present methods which can be used
to analyse the raw data of a benchmark experiment and derive some insight regarding
the answers to these questions. We employ the presented methods to analyse the
BBOB’09 benchmark results and present some initial findings.'
author:
- first_name: Olaf
full_name: Mersmann, Olaf
last_name: Mersmann
- first_name: Mike
full_name: Preuss, Mike
last_name: Preuss
- first_name: Heike
full_name: Trautmann, Heike
id: '100740'
last_name: Trautmann
orcid: 0000-0002-9788-8282
citation:
ama: 'Mersmann O, Preuss M, Trautmann H. Benchmarking Evolutionary Algorithms: Towards
Exploratory Landscape Analysis. In: Proceedings of the 11th International Conference
on Parallel Problem Solving from Nature: Part I. PPSN’10. Springer-Verlag;
2010:73–82.'
apa: 'Mersmann, O., Preuss, M., & Trautmann, H. (2010). Benchmarking Evolutionary
Algorithms: Towards Exploratory Landscape Analysis. Proceedings of the 11th
International Conference on Parallel Problem Solving from Nature: Part I,
73–82.'
bibtex: '@inproceedings{Mersmann_Preuss_Trautmann_2010, place={Berlin, Heidelberg},
series={PPSN’10}, title={Benchmarking Evolutionary Algorithms: Towards Exploratory
Landscape Analysis}, booktitle={Proceedings of the 11th International Conference
on Parallel Problem Solving from Nature: Part I}, publisher={Springer-Verlag},
author={Mersmann, Olaf and Preuss, Mike and Trautmann, Heike}, year={2010}, pages={73–82},
collection={PPSN’10} }'
chicago: 'Mersmann, Olaf, Mike Preuss, and Heike Trautmann. “Benchmarking Evolutionary
Algorithms: Towards Exploratory Landscape Analysis.” In Proceedings of the
11th International Conference on Parallel Problem Solving from Nature: Part I,
73–82. PPSN’10. Berlin, Heidelberg: Springer-Verlag, 2010.'
ieee: 'O. Mersmann, M. Preuss, and H. Trautmann, “Benchmarking Evolutionary Algorithms:
Towards Exploratory Landscape Analysis,” in Proceedings of the 11th International
Conference on Parallel Problem Solving from Nature: Part I, 2010, pp. 73–82.'
mla: 'Mersmann, Olaf, et al. “Benchmarking Evolutionary Algorithms: Towards Exploratory
Landscape Analysis.” Proceedings of the 11th International Conference on Parallel
Problem Solving from Nature: Part I, Springer-Verlag, 2010, pp. 73–82.'
short: 'O. Mersmann, M. Preuss, H. Trautmann, in: Proceedings of the 11th International
Conference on Parallel Problem Solving from Nature: Part I, Springer-Verlag, Berlin,
Heidelberg, 2010, pp. 73–82.'
date_created: 2023-08-04T16:02:28Z
date_updated: 2023-10-16T13:55:43Z
department:
- _id: '34'
- _id: '819'
keyword:
- benchmarking
- multidimensional scaling
- consensus ranking
- evolutionary optimization
- BBOB test set
language:
- iso: eng
page: 73–82
place: Berlin, Heidelberg
publication: 'Proceedings of the 11th International Conference on Parallel Problem
Solving from Nature: Part I'
publication_identifier:
isbn:
- '3642158439'
publisher: Springer-Verlag
series_title: PPSN’10
status: public
title: 'Benchmarking Evolutionary Algorithms: Towards Exploratory Landscape Analysis'
type: conference
user_id: '15504'
year: '2010'
...
---
_id: '9736'
abstract:
- lang: eng
text: Self-optimizing mechatronic systems are a new class of technical systems.
On the one hand, new challenges regarding dependability arise from their additional
complexity and adaptivity. On the other hand, their abilities enable new concepts
and methods to improve the dependability of mechatronic systems. This paper introduces
a multi-level dependability concept for self-optimizing mechatronic systems and
shows how planning can be used to improve the availability and reliability of
systems in the operating stages.
author:
- first_name: Benjamin
full_name: Klöpper, Benjamin
last_name: Klöpper
- first_name: Christoph
full_name: Sondermann-Wölke, Christoph
last_name: Sondermann-Wölke
- first_name: Christoph
full_name: Romaus, Christoph
last_name: Romaus
- first_name: Henner
full_name: Vöcking, Henner
last_name: Vöcking
citation:
ama: 'Klöpper B, Sondermann-Wölke C, Romaus C, Vöcking H. Probabilistic planning
integrated in a multi-level dependability concept for mechatronic systems. In:
Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE
Symposium On. ; 2009:104-111. doi:10.1109/CICA.2009.4982790'
apa: Klöpper, B., Sondermann-Wölke, C., Romaus, C., & Vöcking, H. (2009). Probabilistic
planning integrated in a multi-level dependability concept for mechatronic systems.
In Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE
Symposium on (pp. 104–111). https://doi.org/10.1109/CICA.2009.4982790
bibtex: '@inproceedings{Klöpper_Sondermann-Wölke_Romaus_Vöcking_2009, title={Probabilistic
planning integrated in a multi-level dependability concept for mechatronic systems},
DOI={10.1109/CICA.2009.4982790},
booktitle={Computational Intelligence in Control and Automation, 2009. CICA 2009.
IEEE Symposium on}, author={Klöpper, Benjamin and Sondermann-Wölke, Christoph
and Romaus, Christoph and Vöcking, Henner}, year={2009}, pages={104–111} }'
chicago: Klöpper, Benjamin, Christoph Sondermann-Wölke, Christoph Romaus, and Henner
Vöcking. “Probabilistic Planning Integrated in a Multi-Level Dependability Concept
for Mechatronic Systems.” In Computational Intelligence in Control and Automation,
2009. CICA 2009. IEEE Symposium On, 104–11, 2009. https://doi.org/10.1109/CICA.2009.4982790.
ieee: B. Klöpper, C. Sondermann-Wölke, C. Romaus, and H. Vöcking, “Probabilistic
planning integrated in a multi-level dependability concept for mechatronic systems,”
in Computational Intelligence in Control and Automation, 2009. CICA 2009. IEEE
Symposium on, 2009, pp. 104–111.
mla: Klöpper, Benjamin, et al. “Probabilistic Planning Integrated in a Multi-Level
Dependability Concept for Mechatronic Systems.” Computational Intelligence
in Control and Automation, 2009. CICA 2009. IEEE Symposium On, 2009, pp. 104–11,
doi:10.1109/CICA.2009.4982790.
short: 'B. Klöpper, C. Sondermann-Wölke, C. Romaus, H. Vöcking, in: Computational
Intelligence in Control and Automation, 2009. CICA 2009. IEEE Symposium On, 2009,
pp. 104–111.'
date_created: 2019-05-13T09:03:57Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1109/CICA.2009.4982790
keyword:
- multilevel dependability concept
- probabilistic planning
- self-optimizing mechatronic systems
- systems reliability
- mechatronics
- planning (artificial intelligence)
- self-adjusting systems
language:
- iso: eng
page: 104 -111
publication: Computational Intelligence in Control and Automation, 2009. CICA 2009.
IEEE Symposium on
quality_controlled: '1'
status: public
title: Probabilistic planning integrated in a multi-level dependability concept for
mechatronic systems
type: conference
user_id: '55222'
year: '2009'
...
---
_id: '9742'
abstract:
- lang: eng
text: New mechatronic systems, called self-optimizing systems, are able to adapt
their behavior according to environmental, user and system specific influences.
Self-optimizing systems are complex and due to their non-deterministic behavior
comprise hidden risks, which cannot be foreseen in the design phase of the system.
Therefore, this paper presents modifications of the current condition monitoring
policy, to be able to cope with this new kind of systems. Beside avoiding critical
situations evoked by self-optimization, the proposed concept uses self-optimization
to increase the dependability of the system. In this case, the concept is applied
to the active guidance module of an innovative rail-bound vehicle.
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
citation:
ama: 'Sondermann-Wölke C, Sextro W. Towards the Integration of Condition Monitoring
in Self-Optimizing Function Modules. In: Future Computing, Service Computation,
Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD ’09. Computation
World: ; 2009:15-20. doi:10.1109/ComputationWorld.2009.47'
apa: Sondermann-Wölke, C., & Sextro, W. (2009). Towards the Integration of Condition
Monitoring in Self-Optimizing Function Modules. In Future Computing, Service
Computation, Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD ’09.
Computation World: (pp. 15–20). https://doi.org/10.1109/ComputationWorld.2009.47
bibtex: '@inproceedings{Sondermann-Wölke_Sextro_2009, title={Towards the Integration
of Condition Monitoring in Self-Optimizing Function Modules}, DOI={10.1109/ComputationWorld.2009.47},
booktitle={Future Computing, Service Computation, Cognitive, Adaptive, Content,
Patterns, 2009. COMPUTATIONWORLD ’09. Computation World:}, author={Sondermann-Wölke,
Christoph and Sextro, Walter}, year={2009}, pages={15–20} }'
chicago: Sondermann-Wölke, Christoph, and Walter Sextro. “Towards the Integration
of Condition Monitoring in Self-Optimizing Function Modules.” In Future Computing,
Service Computation, Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD
’09. Computation World:, 15–20, 2009. https://doi.org/10.1109/ComputationWorld.2009.47.
ieee: C. Sondermann-Wölke and W. Sextro, “Towards the Integration of Condition Monitoring
in Self-Optimizing Function Modules,” in Future Computing, Service Computation,
Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD ’09. Computation
World:, 2009, pp. 15–20.
mla: Sondermann-Wölke, Christoph, and Walter Sextro. “Towards the Integration of
Condition Monitoring in Self-Optimizing Function Modules.” Future Computing,
Service Computation, Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD
’09. Computation World:, 2009, pp. 15–20, doi:10.1109/ComputationWorld.2009.47.
short: 'C. Sondermann-Wölke, W. Sextro, in: Future Computing, Service Computation,
Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD ’09. Computation
World:, 2009, pp. 15–20.'
date_created: 2019-05-13T09:31:52Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '151'
doi: 10.1109/ComputationWorld.2009.47
keyword:
- condition monitoring
- mechatronic systems
- rail bound vehicle
- rail guidance module
- self-optimization
- self-optimizing function modules
- condition monitoring
- mechatronics
- railway rolling stock
- self-adjusting systems
language:
- iso: eng
page: 15 -20
publication: 'Future Computing, Service Computation, Cognitive, Adaptive, Content,
Patterns, 2009. COMPUTATIONWORLD ''09. Computation World:'
status: public
title: Towards the Integration of Condition Monitoring in Self-Optimizing Function
Modules
type: conference
user_id: '55222'
year: '2009'
...
---
_id: '9576'
abstract:
- lang: eng
text: 'In neurosurgery, delineation of tumor boundaries during resection of brain
tumors is of substantial relevance. During operation distinction between tumor
and healthy tissue rely on the abilities of the surgeon based on visual and tactile
differentiation. In this paper a high sensitivity actuator-sensor system using
a piezoelectric bimorph is presented. Frequency shift and transfer function of
the bimorphpsilas voltages are detected and evaluated. Sensorpsilas sensitivity
is evaluated using two frequency controls strategies: A phase-locked loop (PLL)
and a self-oscillating circuit. Results of measurements conducted on gel-phantoms
are presented and discussed.'
author:
- first_name: David Oliva
full_name: Uribe, David Oliva
last_name: Uribe
- first_name: Ralf
full_name: Stroop, Ralf
last_name: Stroop
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Jörg
full_name: Wallaschek, Jörg
last_name: Wallaschek
citation:
ama: 'Uribe DO, Stroop R, Hemsel T, Wallaschek J. Development of a biomedical tissue
differentiation system using piezoelectric actuators. In: Frequency Control
Symposium, 2008 IEEE International. ; 2008:91-94. doi:10.1109/FREQ.2008.4622963'
apa: Uribe, D. O., Stroop, R., Hemsel, T., & Wallaschek, J. (2008). Development
of a biomedical tissue differentiation system using piezoelectric actuators. In
Frequency Control Symposium, 2008 IEEE International (pp. 91–94). https://doi.org/10.1109/FREQ.2008.4622963
bibtex: '@inproceedings{Uribe_Stroop_Hemsel_Wallaschek_2008, title={Development
of a biomedical tissue differentiation system using piezoelectric actuators},
DOI={10.1109/FREQ.2008.4622963},
booktitle={Frequency Control Symposium, 2008 IEEE International}, author={Uribe,
David Oliva and Stroop, Ralf and Hemsel, Tobias and Wallaschek, Jörg}, year={2008},
pages={91–94} }'
chicago: Uribe, David Oliva, Ralf Stroop, Tobias Hemsel, and Jörg Wallaschek. “Development
of a Biomedical Tissue Differentiation System Using Piezoelectric Actuators.”
In Frequency Control Symposium, 2008 IEEE International, 91–94, 2008. https://doi.org/10.1109/FREQ.2008.4622963.
ieee: D. O. Uribe, R. Stroop, T. Hemsel, and J. Wallaschek, “Development of a biomedical
tissue differentiation system using piezoelectric actuators,” in Frequency
Control Symposium, 2008 IEEE International, 2008, pp. 91–94.
mla: Uribe, David Oliva, et al. “Development of a Biomedical Tissue Differentiation
System Using Piezoelectric Actuators.” Frequency Control Symposium, 2008 IEEE
International, 2008, pp. 91–94, doi:10.1109/FREQ.2008.4622963.
short: 'D.O. Uribe, R. Stroop, T. Hemsel, J. Wallaschek, in: Frequency Control Symposium,
2008 IEEE International, 2008, pp. 91–94.'
date_created: 2019-04-29T13:07:39Z
date_updated: 2022-01-06T07:04:16Z
department:
- _id: '151'
doi: 10.1109/FREQ.2008.4622963
keyword:
- biomedical measurement
- brain
- cancer
- neurophysiology
- phantoms
- phase locked loops
- piezoelectric actuators
- surgery
- tactile sensors
- transfer functions
- tumours
- PLL
- biomedical tissue differentiation system
- brain tumor resection
- frequency control
- frequency shift
- gel-phantom
- high sensitivity actuator-sensor system
- neurosurgery
- phase-locked loop
- piezoelectric actuators
- piezoelectric bimorph
- self-oscillating circuit
- sensor sensitivity
- tactile differentiation
- tactile sensor system
- transfer function
- tumor boundary
- visual differentiation
- Biomedical measurements
- Circuits
- Frequency control
- Neoplasms
- Neurosurgery
- Phase locked loops
- Piezoelectric actuators
- Surges
- Transfer functions
- Voltage
language:
- iso: eng
page: 91-94
publication: Frequency Control Symposium, 2008 IEEE International
publication_identifier:
issn:
- 1075-6787
quality_controlled: '1'
status: public
title: Development of a biomedical tissue differentiation system using piezoelectric
actuators
type: conference
user_id: '55222'
year: '2008'
...
---
_id: '64041'
abstract:
- lang: eng
text: Three cis-dioxovanadium(V) complexes with similar N -salicylidenehydrazide
ligands modeling hydrogen bonding interactions of vanadate relevant for vanadium
haloperoxidases are studied by 51V solid-state NMR spectroscopy. Their parameters
describing the quadrupolar and chemical shift anisotropy interactions (quadrupolar
coupling constant C Q , asymmetry of the quadrupolar tensor η Q , isotropic chemical
shift δ iso , chemical shift anisotropy δ σ , asymmetry of the chemical shift
tensor η σ and the Euler angles α , β and γ ) are determined both experimentally
and theoretically using DFT methods. A comparative study of different methods
to determine the NMR parameters by numerical simulation of the spectra is presented.
Detailed theoretical investigations on the DFT level using various basis sets
and structural models show that by useful choice of the methodology, the calculated
parameters agree to the experimental ones in a very good manner.
author:
- first_name: Annika
full_name: Schweitzer, Annika
last_name: Schweitzer
- first_name: Torsten
full_name: Gutmann, Torsten
id: '118165'
last_name: Gutmann
- first_name: Maria
full_name: Wächtler, Maria
last_name: Wächtler
- first_name: Hergen
full_name: Breitzke, Hergen
last_name: Breitzke
- first_name: Axel
full_name: Buchholz, Axel
last_name: Buchholz
- first_name: Winfried
full_name: Plass, Winfried
last_name: Plass
- first_name: Gerd
full_name: Buntkowsky, Gerd
last_name: Buntkowsky
citation:
ama: Schweitzer A, Gutmann T, Wächtler M, et al. 51V solid-state NMR investigations
and DFT studies of model compounds for vanadium haloperoxidases. Solid State
Nuclear Magnetic Resonance. 2008;34(1–2):52–67. doi:10.1016/j.ssnmr.2008.02.003
apa: Schweitzer, A., Gutmann, T., Wächtler, M., Breitzke, H., Buchholz, A., Plass,
W., & Buntkowsky, G. (2008). 51V solid-state NMR investigations and DFT studies
of model compounds for vanadium haloperoxidases. Solid State Nuclear Magnetic
Resonance, 34(1–2), 52–67. https://doi.org/10.1016/j.ssnmr.2008.02.003
bibtex: '@article{Schweitzer_Gutmann_Wächtler_Breitzke_Buchholz_Plass_Buntkowsky_2008,
title={51V solid-state NMR investigations and DFT studies of model compounds for
vanadium haloperoxidases}, volume={34}, DOI={10.1016/j.ssnmr.2008.02.003},
number={1–2}, journal={Solid State Nuclear Magnetic Resonance}, author={Schweitzer,
Annika and Gutmann, Torsten and Wächtler, Maria and Breitzke, Hergen and Buchholz,
Axel and Plass, Winfried and Buntkowsky, Gerd}, year={2008}, pages={52–67} }'
chicago: 'Schweitzer, Annika, Torsten Gutmann, Maria Wächtler, Hergen Breitzke,
Axel Buchholz, Winfried Plass, and Gerd Buntkowsky. “51V Solid-State NMR Investigations
and DFT Studies of Model Compounds for Vanadium Haloperoxidases.” Solid State
Nuclear Magnetic Resonance 34, no. 1–2 (2008): 52–67. https://doi.org/10.1016/j.ssnmr.2008.02.003.'
ieee: 'A. Schweitzer et al., “51V solid-state NMR investigations and DFT
studies of model compounds for vanadium haloperoxidases,” Solid State Nuclear
Magnetic Resonance, vol. 34, no. 1–2, pp. 52–67, 2008, doi: 10.1016/j.ssnmr.2008.02.003.'
mla: Schweitzer, Annika, et al. “51V Solid-State NMR Investigations and DFT Studies
of Model Compounds for Vanadium Haloperoxidases.” Solid State Nuclear Magnetic
Resonance, vol. 34, no. 1–2, 2008, pp. 52–67, doi:10.1016/j.ssnmr.2008.02.003.
short: A. Schweitzer, T. Gutmann, M. Wächtler, H. Breitzke, A. Buchholz, W. Plass,
G. Buntkowsky, Solid State Nuclear Magnetic Resonance 34 (2008) 52–67.
date_created: 2026-02-07T16:10:01Z
date_updated: 2026-02-17T16:13:21Z
doi: 10.1016/j.ssnmr.2008.02.003
extern: '1'
intvolume: ' 34'
issue: 1–2
keyword:
- 51V NMR
- Model system
- Ab initio calculation
- Cis-dioxovanadium(V) complex
- Haloperoxidase
- Numerical optimization
- Quadrupolar interaction
language:
- iso: eng
page: 52–67
publication: Solid State Nuclear Magnetic Resonance
status: public
title: 51V solid-state NMR investigations and DFT studies of model compounds for vanadium
haloperoxidases
type: journal_article
user_id: '100715'
volume: 34
year: '2008'
...
---
_id: '6508'
abstract:
- lang: eng
text: 'In this paper, we present a framework that supports experimenting with evolutionary
hardware design. We describe the framework''s modules for composing evolutionary
optimizers and for setting up, controlling, and analyzing experiments. Two case
studies demonstrate the usefulness of the framework: evolution of hash functions
and evolution based on pre-engineered circuits.'
author:
- first_name: Paul
full_name: Kaufmann, Paul
last_name: Kaufmann
- first_name: Marco
full_name: Platzner, Marco
id: '398'
last_name: Platzner
citation:
ama: 'Kaufmann P, Platzner M. MOVES: A Modular Framework for Hardware Evolution.
In: Second NASA/ESA Conference on Adaptive Hardware and Systems (AHS 2007).
IEEE; 2007:447-454. doi:10.1109/ahs.2007.73'
apa: 'Kaufmann, P., & Platzner, M. (2007). MOVES: A Modular Framework for Hardware
Evolution. In Second NASA/ESA Conference on Adaptive Hardware and Systems (AHS
2007) (pp. 447–454). Edinburgh, UK: IEEE. https://doi.org/10.1109/ahs.2007.73'
bibtex: '@inproceedings{Kaufmann_Platzner_2007, title={MOVES: A Modular Framework
for Hardware Evolution}, DOI={10.1109/ahs.2007.73},
booktitle={Second NASA/ESA Conference on Adaptive Hardware and Systems (AHS 2007)},
publisher={IEEE}, author={Kaufmann, Paul and Platzner, Marco}, year={2007}, pages={447–454}
}'
chicago: 'Kaufmann, Paul, and Marco Platzner. “MOVES: A Modular Framework for Hardware
Evolution.” In Second NASA/ESA Conference on Adaptive Hardware and Systems
(AHS 2007), 447–54. IEEE, 2007. https://doi.org/10.1109/ahs.2007.73.'
ieee: 'P. Kaufmann and M. Platzner, “MOVES: A Modular Framework for Hardware Evolution,”
in Second NASA/ESA Conference on Adaptive Hardware and Systems (AHS 2007),
Edinburgh, UK, 2007, pp. 447–454.'
mla: 'Kaufmann, Paul, and Marco Platzner. “MOVES: A Modular Framework for Hardware
Evolution.” Second NASA/ESA Conference on Adaptive Hardware and Systems (AHS
2007), IEEE, 2007, pp. 447–54, doi:10.1109/ahs.2007.73.'
short: 'P. Kaufmann, M. Platzner, in: Second NASA/ESA Conference on Adaptive Hardware
and Systems (AHS 2007), IEEE, 2007, pp. 447–454.'
conference:
end_date: 2007-08-08
location: Edinburgh, UK
name: Second NASA/ESA Conference on Adaptive Hardware and Systems (AHS 2007)
start_date: 2007-08-05
date_created: 2019-01-08T09:52:43Z
date_updated: 2022-01-06T07:03:08Z
department:
- _id: '78'
doi: 10.1109/ahs.2007.73
keyword:
- integrated circuit design
- hardware evolution
- evolutionary hardware design
- evolutionary optimizers
- hash functions
- preengineered circuits
- Hardware
- Circuits
- Design optimization
- Visualization
- Genetic programming
- Genetic mutations
- Clustering algorithms
- Biological cells
- Field programmable gate arrays
- Routing
language:
- iso: eng
page: 447-454
publication: Second NASA/ESA Conference on Adaptive Hardware and Systems (AHS 2007)
publication_identifier:
isbn:
- 076952866X
- '9780769528663'
publication_status: published
publisher: IEEE
status: public
title: 'MOVES: A Modular Framework for Hardware Evolution'
type: conference
user_id: '3118'
year: '2007'
...
---
_id: '11930'
abstract:
- lang: eng
text: For human-machine interfaces in distant-talking environments multichannel
signal processing is often employed to obtain an enhanced signal for subsequent
processing. In this paper we propose a novel adaptation algorithm for a filter-and-sum
beamformer to adjust the coefficients of FIR filters to changing acoustic room
impulses, e.g. due to speaker movement. A deterministic and a stochastic gradient
ascent algorithm are derived from a constrained optimization problem, which iteratively
estimates the eigenvector corresponding to the largest eigenvalue of the cross
power spectral density of the microphone signals. The method does not require
an explicit estimation of the speaker location. The experimental results show
fast adaptation and excellent robustness of the proposed algorithm.
author:
- first_name: Ernst
full_name: Warsitz, Ernst
last_name: Warsitz
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
citation:
ama: 'Warsitz E, Haeb-Umbach R. Acoustic filter-and-sum beamforming by adaptive
principal component analysis. In: IEEE International Conference on Acoustics,
Speech and Signal Processing (ICASSP 2005). Vol 4. ; 2005:iv/797-iv/800 Vol.
4. doi:10.1109/ICASSP.2005.1416129'
apa: Warsitz, E., & Haeb-Umbach, R. (2005). Acoustic filter-and-sum beamforming
by adaptive principal component analysis. In IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2005) (Vol. 4, p. iv/797-iv/800
Vol. 4). https://doi.org/10.1109/ICASSP.2005.1416129
bibtex: '@inproceedings{Warsitz_Haeb-Umbach_2005, title={Acoustic filter-and-sum
beamforming by adaptive principal component analysis}, volume={4}, DOI={10.1109/ICASSP.2005.1416129},
booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2005)}, author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2005},
pages={iv/797-iv/800 Vol. 4} }'
chicago: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Acoustic Filter-and-Sum Beamforming
by Adaptive Principal Component Analysis.” In IEEE International Conference
on Acoustics, Speech and Signal Processing (ICASSP 2005), 4:iv/797-iv/800
Vol. 4, 2005. https://doi.org/10.1109/ICASSP.2005.1416129.
ieee: E. Warsitz and R. Haeb-Umbach, “Acoustic filter-and-sum beamforming by adaptive
principal component analysis,” in IEEE International Conference on Acoustics,
Speech and Signal Processing (ICASSP 2005), 2005, vol. 4, p. iv/797-iv/800
Vol. 4.
mla: Warsitz, Ernst, and Reinhold Haeb-Umbach. “Acoustic Filter-and-Sum Beamforming
by Adaptive Principal Component Analysis.” IEEE International Conference on
Acoustics, Speech and Signal Processing (ICASSP 2005), vol. 4, 2005, p. iv/797-iv/800
Vol. 4, doi:10.1109/ICASSP.2005.1416129.
short: 'E. Warsitz, R. Haeb-Umbach, in: IEEE International Conference on Acoustics,
Speech and Signal Processing (ICASSP 2005), 2005, p. iv/797-iv/800 Vol. 4.'
date_created: 2019-07-12T05:31:00Z
date_updated: 2022-01-06T06:51:12Z
department:
- _id: '54'
doi: 10.1109/ICASSP.2005.1416129
intvolume: ' 4'
keyword:
- acoustic filter-and-sum beamforming
- acoustic room impulses
- acoustic signal processing
- adaptive principal component analysis
- adaptive signal processing
- architectural acoustics
- constrained optimization problem
- cross power spectral density
- deterministic algorithm
- deterministic algorithms
- distant-talking environments
- eigenvalues and eigenfunctions
- eigenvector
- enhanced signal
- filter-and-sum beamformer
- FIR filter coefficients
- FIR filter coefficients
- FIR filters
- gradient methods
- human-machine interfaces
- iterative estimation
- iterative methods
- largest eigenvalue
- microphone signals
- multichannel signal processing
- optimisation
- principal component analysis
- spectral analysis
- stochastic gradient ascent algorithm
- stochastic processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://groups.uni-paderborn.de/nt/pubs/2005/WaHa05.pdf
oa: '1'
page: iv/797-iv/800 Vol. 4
publication: IEEE International Conference on Acoustics, Speech and Signal Processing
(ICASSP 2005)
status: public
title: Acoustic filter-and-sum beamforming by adaptive principal component analysis
type: conference
user_id: '44006'
volume: 4
year: '2005'
...
---
_id: '39078'
author:
- first_name: Jürgen
full_name: Gausemeier, Jürgen
id: '163'
last_name: Gausemeier
- first_name: Wolfgang
full_name: Müller, Wolfgang
id: '16243'
last_name: Müller
- first_name: Volker
full_name: Paelke, Volker
last_name: Paelke
- first_name: Jürgen
full_name: Bauch, Jürgen
last_name: Bauch
- first_name: Q.
full_name: Shen, Q.
last_name: Shen
- first_name: 'R. '
full_name: 'Radkowski, R. '
last_name: Radkowski
citation:
ama: 'Gausemeier J, Müller W, Paelke V, Bauch J, Shen Q, Radkowski R. Virtual Prototyping
Of Self-Optimizing Mechatronic Systems. In: Proceedings of the Design 2004.
; 2004.'
apa: Gausemeier, J., Müller, W., Paelke, V., Bauch, J., Shen, Q., & Radkowski,
R. (2004). Virtual Prototyping Of Self-Optimizing Mechatronic Systems. Proceedings
of the Design 2004. 8th International Design Conference , Dubrovnik.
bibtex: '@inproceedings{Gausemeier_Müller_Paelke_Bauch_Shen_Radkowski_2004, place={Dubrovnik},
title={Virtual Prototyping Of Self-Optimizing Mechatronic Systems}, booktitle={Proceedings
of the Design 2004}, author={Gausemeier, Jürgen and Müller, Wolfgang and Paelke,
Volker and Bauch, Jürgen and Shen, Q. and Radkowski, R. }, year={2004} }'
chicago: Gausemeier, Jürgen, Wolfgang Müller, Volker Paelke, Jürgen Bauch, Q. Shen,
and R. Radkowski. “Virtual Prototyping Of Self-Optimizing Mechatronic Systems.”
In Proceedings of the Design 2004. Dubrovnik, 2004.
ieee: J. Gausemeier, W. Müller, V. Paelke, J. Bauch, Q. Shen, and R. Radkowski,
“Virtual Prototyping Of Self-Optimizing Mechatronic Systems,” presented at the
8th International Design Conference , Dubrovnik, 2004.
mla: Gausemeier, Jürgen, et al. “Virtual Prototyping Of Self-Optimizing Mechatronic
Systems.” Proceedings of the Design 2004, 2004.
short: 'J. Gausemeier, W. Müller, V. Paelke, J. Bauch, Q. Shen, R. Radkowski, in:
Proceedings of the Design 2004, Dubrovnik, 2004.'
conference:
location: Dubrovnik
name: '8th International Design Conference '
date_created: 2023-01-24T09:12:31Z
date_updated: 2023-01-24T09:12:40Z
department:
- _id: '672'
keyword:
- mechatronic systems
- self-optimization
- virtual prototyping
language:
- iso: eng
place: Dubrovnik
publication: Proceedings of the Design 2004
status: public
title: Virtual Prototyping Of Self-Optimizing Mechatronic Systems
type: conference
user_id: '5786'
year: '2004'
...