---
_id: '9699'
author:
- first_name: Sara
full_name: Strauß, Sara
id: '3218'
last_name: Strauß
citation:
ama: 'Strauß S. Facets of Children’s Fears in Twentieth- and Twenty-First-Century
Stream-of-Consciousness Fiction. In: Gymnich M, ed. Who’s Afraid of...? Facets
of Fear in Anglophone Literature and Film. Bonn: V&R Unipress Bonn; 2012:141-156.'
apa: 'Strauß, S. (2012). Facets of Children’s Fears in Twentieth- and Twenty-First-Century
Stream-of-Consciousness Fiction. In M. Gymnich (Ed.), Who’s afraid of...? Facets
of Fear in Anglophone Literature and Film (pp. 141–156). Bonn: V&R Unipress
Bonn.'
bibtex: '@inbook{Strauß_2012, place={Bonn}, title={Facets of Children’s Fears in
Twentieth- and Twenty-First-Century Stream-of-Consciousness Fiction}, booktitle={Who’s
afraid of...? Facets of Fear in Anglophone Literature and Film}, publisher={V&R
Unipress Bonn}, author={Strauß, Sara}, editor={Gymnich, MarionEditor}, year={2012},
pages={141–156} }'
chicago: 'Strauß, Sara. “Facets of Children’s Fears in Twentieth- and Twenty-First-Century
Stream-of-Consciousness Fiction.” In Who’s Afraid of...? Facets of Fear in
Anglophone Literature and Film, edited by Marion Gymnich, 141–56. Bonn: V&R
Unipress Bonn, 2012.'
ieee: 'S. Strauß, “Facets of Children’s Fears in Twentieth- and Twenty-First-Century
Stream-of-Consciousness Fiction,” in Who’s afraid of...? Facets of Fear in
Anglophone Literature and Film, M. Gymnich, Ed. Bonn: V&R Unipress Bonn,
2012, pp. 141–156.'
mla: Strauß, Sara. “Facets of Children’s Fears in Twentieth- and Twenty-First-Century
Stream-of-Consciousness Fiction.” Who’s Afraid of...? Facets of Fear in Anglophone
Literature and Film, edited by Marion Gymnich, V&R Unipress Bonn, 2012,
pp. 141–56.
short: 'S. Strauß, in: M. Gymnich (Ed.), Who’s Afraid of...? Facets of Fear in Anglophone
Literature and Film, V&R Unipress Bonn, Bonn, 2012, pp. 141–156.'
date_created: 2019-05-08T07:10:30Z
date_updated: 2022-01-06T07:04:18Z
department:
- _id: '36'
- _id: '1'
- _id: '380'
editor:
- first_name: Marion
full_name: Gymnich, Marion
last_name: Gymnich
language:
- iso: eng
page: 141-156
place: Bonn
publication: Who’s afraid of...? Facets of Fear in Anglophone Literature and Film
publication_status: published
publisher: V&R Unipress Bonn
status: public
title: Facets of Children’s Fears in Twentieth- and Twenty-First-Century Stream-of-Consciousness
Fiction
type: book_chapter
user_id: '32277'
year: '2012'
...
---
_id: '9700'
author:
- first_name: Sara
full_name: Strauß, Sara
id: '3218'
last_name: Strauß
citation:
ama: 'Strauß S. Constructions of ‘Otherness’ in Frances Hodgson Burnett’s The Secret
Garden. In: Gymnich M, Lichterfeld I, eds. A Hundred Years of The Secret Garden
– Frances Hodgson Burnett’s Children’s Classic Revisited. Göttingen: V&R
Unipress Bonn; 2012:77-89.'
apa: 'Strauß, S. (2012). Constructions of ‘Otherness’ in Frances Hodgson Burnett’s
The Secret Garden. In M. Gymnich & I. Lichterfeld (Eds.), A Hundred Years
of The Secret Garden – Frances Hodgson Burnett’s Children’s Classic Revisited
(pp. 77–89). Göttingen: V&R Unipress Bonn.'
bibtex: '@inbook{Strauß_2012, place={Göttingen}, title={Constructions of ‘Otherness’
in Frances Hodgson Burnett’s The Secret Garden}, booktitle={A Hundred Years of
The Secret Garden – Frances Hodgson Burnett’s Children’s Classic Revisited}, publisher={V&R
Unipress Bonn}, author={Strauß, Sara}, editor={Gymnich, Marion and Lichterfeld,
ImkeEditors}, year={2012}, pages={77–89} }'
chicago: 'Strauß, Sara. “Constructions of ‘Otherness’ in Frances Hodgson Burnett’s
The Secret Garden.” In A Hundred Years of The Secret Garden – Frances Hodgson
Burnett’s Children’s Classic Revisited, edited by Marion Gymnich and Imke
Lichterfeld, 77–89. Göttingen: V&R Unipress Bonn, 2012.'
ieee: 'S. Strauß, “Constructions of ‘Otherness’ in Frances Hodgson Burnett’s The
Secret Garden,” in A Hundred Years of The Secret Garden – Frances Hodgson Burnett’s
Children’s Classic Revisited, M. Gymnich and I. Lichterfeld, Eds. Göttingen:
V&R Unipress Bonn, 2012, pp. 77–89.'
mla: Strauß, Sara. “Constructions of ‘Otherness’ in Frances Hodgson Burnett’s The
Secret Garden.” A Hundred Years of The Secret Garden – Frances Hodgson Burnett’s
Children’s Classic Revisited, edited by Marion Gymnich and Imke Lichterfeld,
V&R Unipress Bonn, 2012, pp. 77–89.
short: 'S. Strauß, in: M. Gymnich, I. Lichterfeld (Eds.), A Hundred Years of The
Secret Garden – Frances Hodgson Burnett’s Children’s Classic Revisited, V&R
Unipress Bonn, Göttingen, 2012, pp. 77–89.'
date_created: 2019-05-08T07:16:19Z
date_updated: 2022-01-06T07:04:18Z
department:
- _id: '36'
- _id: '1'
- _id: '380'
editor:
- first_name: Marion
full_name: Gymnich, Marion
last_name: Gymnich
- first_name: Imke
full_name: Lichterfeld, Imke
last_name: Lichterfeld
language:
- iso: eng
page: 77-89
place: Göttingen
publication: A Hundred Years of The Secret Garden – Frances Hodgson Burnett’s Children’s
Classic Revisited
publication_status: published
publisher: V&R Unipress Bonn
status: public
title: Constructions of ‘Otherness’ in Frances Hodgson Burnett’s The Secret Garden
type: book_chapter
user_id: '32277'
year: '2012'
...
---
_id: '9701'
citation:
ama: Strauß S, ed. The Persistence of Modernism in Light. Vol 5.; 2012:95-108.
apa: 'Strauß, S. (Ed.). (2012). The Persistence of Modernism in Light. Critical
Engagements: A Journal of Criticism and Theory: Special Section: Eva Figes
(Vol. 5, pp. 95–108).'
bibtex: '@book{Strauß_2012, title={The Persistence of Modernism in Light}, volume={5},
number={2}, journal={Critical Engagements: A Journal of Criticism and Theory:
Special Section: Eva Figes}, year={2012}, pages={95–108} }'
chicago: 'Strauß, Sara, ed. The Persistence of Modernism in Light. Critical
Engagements: A Journal of Criticism and Theory: Special Section: Eva Figes.
Vol. 5, 2012.'
ieee: S. Strauß, Ed., The Persistence of Modernism in Light, vol. 5, no.
2. 2012, pp. 95–108.
mla: 'Strauß, Sara, editor. “The Persistence of Modernism in Light.” Critical
Engagements: A Journal of Criticism and Theory: Special Section: Eva Figes,
vol. 5, no. 2, 2012, pp. 95–108.'
short: S. Strauß, ed., The Persistence of Modernism in Light, 2012.
date_created: 2019-05-08T07:20:30Z
date_updated: 2022-01-06T07:04:18Z
department:
- _id: '36'
- _id: '1'
- _id: '380'
editor:
- first_name: Sara
full_name: Strauß, Sara
id: '3218'
last_name: Strauß
intvolume: ' 5'
issue: '2'
language:
- iso: eng
page: 95-108
publication: 'Critical Engagements: A Journal of Criticism and Theory: Special Section:
Eva Figes'
publication_status: published
status: public
title: The Persistence of Modernism in Light
type: journal_editor
user_id: '32277'
volume: 5
year: '2012'
...
---
_id: '9733'
abstract:
- lang: eng
text: "Interview\r\n11 Oct. 2012"
author:
- first_name: Christina
full_name: Flotmann, Christina
id: '8736'
last_name: Flotmann
citation:
ama: Flotmann C. Der Zauber Magischer Welten. Deutschlandfunk; 2012.
apa: Flotmann, C. (2012). Der Zauber Magischer Welten. Deutschlandfunk.
bibtex: '@book{Flotmann_2012, title={Der Zauber Magischer Welten}, publisher={Deutschlandfunk},
author={Flotmann, Christina}, year={2012} }'
chicago: Flotmann, Christina. Der Zauber Magischer Welten. Deutschlandfunk,
2012.
ieee: C. Flotmann, Der Zauber Magischer Welten. Deutschlandfunk, 2012.
mla: Flotmann, Christina. Der Zauber Magischer Welten. Deutschlandfunk, 2012.
short: C. Flotmann, Der Zauber Magischer Welten, Deutschlandfunk, 2012.
date_created: 2019-05-13T07:46:48Z
date_updated: 2022-01-06T07:04:19Z
department:
- _id: '36'
- _id: '1'
- _id: '380'
language:
- iso: eng
publisher: Deutschlandfunk
status: public
title: Der Zauber Magischer Welten
type: misc
user_id: '32277'
year: '2012'
...
---
_id: '9781'
abstract:
- lang: eng
text: 'A piezoelectric energy harvester is an electromechanical device that converts
ambient mechanical vibration into electric power. Most existing vibration energy
harvesting devices operate effectively at a single frequency only, dictated by
the design of the device. This frequency must match the frequency of the host
structure vibration. However, real world structural vibrations rarely have a specific
constant frequency. Therefore, piezoelectric harvesters that generate usable power
across a range of exciting frequencies are required to make this technology commercially
viable. Currently known harvester tuning techniques have many limitations, in
particular they miss the ability to work during harvester operation and most often
cannot perform a precise tuning. This paper describes the design and testing of
a vibration energy harvester with tunable resonance frequency, wherein the tuning
is accomplished by changing the attraction force between two permanent magnets
by adjusting the distance between the magnets. This tuning technique allows the
natural frequency to be manipulated before and during operation of the harvester.
Furthermore the paper presents a physical description of the frequency tuning
effect. The experimental results achieved with a piezoelectric bimorph fit the
calculated results very well. The calculation and experimental results show that
using this tuning technique the natural frequency of the harvester can be varied
efficiently within a wide range: in the test setup, the natural frequency of the
piezoelectric bimorph could be increased by more than 70\%.'
author:
- first_name: Waleed
full_name: Al-Ashtari, Waleed
last_name: Al-Ashtari
- first_name: Matthias
full_name: Hunstig, Matthias
last_name: Hunstig
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: Al-Ashtari W, Hunstig M, Hemsel T, Sextro W. Frequency tuning of piezoelectric
energy harvesters by magnetic force. Smart Materials and Structures. 2012;21(3):035019.
apa: Al-Ashtari, W., Hunstig, M., Hemsel, T., & Sextro, W. (2012). Frequency
tuning of piezoelectric energy harvesters by magnetic force. Smart Materials
and Structures, 21(3), 035019.
bibtex: '@article{Al-Ashtari_Hunstig_Hemsel_Sextro_2012, title={Frequency tuning
of piezoelectric energy harvesters by magnetic force}, volume={21}, number={3},
journal={Smart Materials and Structures}, author={Al-Ashtari, Waleed and Hunstig,
Matthias and Hemsel, Tobias and Sextro, Walter}, year={2012}, pages={035019} }'
chicago: 'Al-Ashtari, Waleed, Matthias Hunstig, Tobias Hemsel, and Walter Sextro.
“Frequency Tuning of Piezoelectric Energy Harvesters by Magnetic Force.” Smart
Materials and Structures 21, no. 3 (2012): 035019.'
ieee: W. Al-Ashtari, M. Hunstig, T. Hemsel, and W. Sextro, “Frequency tuning of
piezoelectric energy harvesters by magnetic force,” Smart Materials and Structures,
vol. 21, no. 3, p. 035019, 2012.
mla: Al-Ashtari, Waleed, et al. “Frequency Tuning of Piezoelectric Energy Harvesters
by Magnetic Force.” Smart Materials and Structures, vol. 21, no. 3, 2012,
p. 035019.
short: W. Al-Ashtari, M. Hunstig, T. Hemsel, W. Sextro, Smart Materials and Structures
21 (2012) 035019.
date_created: 2019-05-13T13:16:33Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
intvolume: ' 21'
issue: '3'
language:
- iso: eng
page: '035019'
publication: Smart Materials and Structures
quality_controlled: '1'
status: public
title: Frequency tuning of piezoelectric energy harvesters by magnetic force
type: journal_article
user_id: '55222'
volume: 21
year: '2012'
...
---
_id: '9782'
abstract:
- lang: eng
text: Piezoelectric structures are nowadays used in many different applications.
A better understanding of the influence of material properties and geometrical
design on the performance of these structures helps to develop piezoelectric structures
specifically designed for their application. Different equivalent circuits have
been introduced in the literature to investigate the behaviour of piezoelectric
transducers. The model parameters are usually determined from measurements covering
the characteristic frequencies of the piezoelectric transducer. This article introduces
an analytical technique for calculating the mechanical and electrical equivalent
system parameters and characteristic frequencies based on material properties
and geometry for a cantilever bimorph structure. The model is validated by measurements
using a cantilever bimorph and fits the experimental results better than previous
models. The model gives a full set of piezoelectric transducer parameters and
is therefore well suited for further theoretical investigations of piezoelectric
transducers for different applications. The results also show that even small
manufacturing tolerances have a considerable effect on the system parameters and
characteristic frequencies. This might lead to intolerable deviations, especially
in dynamic applications and should be avoided by careful design and production.
author:
- first_name: Waleed
full_name: Al-Ashtari, Waleed
last_name: Al-Ashtari
- first_name: Matthias
full_name: Hunstig, Matthias
last_name: Hunstig
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: Al-Ashtari W, Hunstig M, Hemsel T, Sextro W. Analytical determination of characteristic
frequencies and equivalent circuit parameters of a piezoelectric bimorph. Journal
of Intelligent Material Systems and Structures. 2012;23(1):15-23. doi:10.1177/1045389X11430742
apa: Al-Ashtari, W., Hunstig, M., Hemsel, T., & Sextro, W. (2012). Analytical
determination of characteristic frequencies and equivalent circuit parameters
of a piezoelectric bimorph. Journal of Intelligent Material Systems and Structures,
23(1), 15–23. https://doi.org/10.1177/1045389X11430742
bibtex: '@article{Al-Ashtari_Hunstig_Hemsel_Sextro_2012, title={Analytical determination
of characteristic frequencies and equivalent circuit parameters of a piezoelectric
bimorph}, volume={23}, DOI={10.1177/1045389X11430742},
number={1}, journal={Journal of Intelligent Material Systems and Structures},
author={Al-Ashtari, Waleed and Hunstig, Matthias and Hemsel, Tobias and Sextro,
Walter}, year={2012}, pages={15–23} }'
chicago: 'Al-Ashtari, Waleed, Matthias Hunstig, Tobias Hemsel, and Walter Sextro.
“Analytical Determination of Characteristic Frequencies and Equivalent Circuit
Parameters of a Piezoelectric Bimorph.” Journal of Intelligent Material Systems
and Structures 23, no. 1 (2012): 15–23. https://doi.org/10.1177/1045389X11430742.'
ieee: W. Al-Ashtari, M. Hunstig, T. Hemsel, and W. Sextro, “Analytical determination
of characteristic frequencies and equivalent circuit parameters of a piezoelectric
bimorph,” Journal of Intelligent Material Systems and Structures, vol.
23, no. 1, pp. 15–23, 2012.
mla: Al-Ashtari, Waleed, et al. “Analytical Determination of Characteristic Frequencies
and Equivalent Circuit Parameters of a Piezoelectric Bimorph.” Journal of Intelligent
Material Systems and Structures, vol. 23, no. 1, 2012, pp. 15–23, doi:10.1177/1045389X11430742.
short: W. Al-Ashtari, M. Hunstig, T. Hemsel, W. Sextro, Journal of Intelligent Material
Systems and Structures 23 (2012) 15–23.
date_created: 2019-05-13T13:17:37Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
doi: 10.1177/1045389X11430742
intvolume: ' 23'
issue: '1'
language:
- iso: eng
page: 15-23
publication: Journal of Intelligent Material Systems and Structures
quality_controlled: '1'
status: public
title: Analytical determination of characteristic frequencies and equivalent circuit
parameters of a piezoelectric bimorph
type: journal_article
user_id: '55222'
volume: 23
year: '2012'
...
---
_id: '9783'
abstract:
- lang: eng
text: To optimize the ultrasound irradiation for cavitation based ultrasound applications
like sonochemistry or ultrasound cleaning, the correlation between cavitation
intensity and the resulting effect on the process is of interest. Furthermore,
changing conditions like temperature and pressure result in varying acoustic properties
of the liquid. That might necessitate an adaption of the ultrasound irradiation.
To detect such changes during operation, process monitoring is desired. Labor
intensive processes, that might be carried out for several hours, also require
process monitoring to increase their reliability by detection of changes or malfunctions
during operation. In some applications cavitation detection and monitoring can
be achieved by the application of sensors in the sound field. Though the application
of sensors is possible, this necessitates modifications on the system and the
sensor might disturb the sound field. In other applications harsh, process conditions
prohibit the application of sensors in the sound field. Therefore alternative
techniques for cavitation detection and monitoring are desired. The applicability
of an external microphone and a self-sensing ultrasound transducer for cavitation
detection were experimentally investigated. Both methods were found to be suitable
and easily applicable.
author:
- first_name: Peter
full_name: Bornmann, Peter
last_name: Bornmann
- 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: Takafumi
full_name: Maeda, Takafumi
last_name: Maeda
- first_name: Takeshi
full_name: Morita, Takeshi
last_name: Morita
citation:
ama: 'Bornmann P, Hemsel T, Sextro W, Maeda T, Morita T. Non-perturbing cavitation
detection / monitoring in sonochemical reactors. In: Ultrasonics Symposium
(IUS), 2012 IEEE International. ; 2012:1141-1144. doi:10.1109/ULTSYM.2012.0284'
apa: Bornmann, P., Hemsel, T., Sextro, W., Maeda, T., & Morita, T. (2012). Non-perturbing
cavitation detection / monitoring in sonochemical reactors. In Ultrasonics
Symposium (IUS), 2012 IEEE International (pp. 1141–1144). https://doi.org/10.1109/ULTSYM.2012.0284
bibtex: '@inproceedings{Bornmann_Hemsel_Sextro_Maeda_Morita_2012, title={Non-perturbing
cavitation detection / monitoring in sonochemical reactors}, DOI={10.1109/ULTSYM.2012.0284},
booktitle={Ultrasonics Symposium (IUS), 2012 IEEE International}, author={Bornmann,
Peter and Hemsel, Tobias and Sextro, Walter and Maeda, Takafumi and Morita, Takeshi},
year={2012}, pages={1141–1144} }'
chicago: Bornmann, Peter, Tobias Hemsel, Walter Sextro, Takafumi Maeda, and Takeshi
Morita. “Non-Perturbing Cavitation Detection / Monitoring in Sonochemical Reactors.”
In Ultrasonics Symposium (IUS), 2012 IEEE International, 1141–44, 2012.
https://doi.org/10.1109/ULTSYM.2012.0284.
ieee: P. Bornmann, T. Hemsel, W. Sextro, T. Maeda, and T. Morita, “Non-perturbing
cavitation detection / monitoring in sonochemical reactors,” in Ultrasonics
Symposium (IUS), 2012 IEEE International, 2012, pp. 1141–1144.
mla: Bornmann, Peter, et al. “Non-Perturbing Cavitation Detection / Monitoring in
Sonochemical Reactors.” Ultrasonics Symposium (IUS), 2012 IEEE International,
2012, pp. 1141–44, doi:10.1109/ULTSYM.2012.0284.
short: 'P. Bornmann, T. Hemsel, W. Sextro, T. Maeda, T. Morita, in: Ultrasonics
Symposium (IUS), 2012 IEEE International, 2012, pp. 1141–1144.'
date_created: 2019-05-13T13:18:49Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
doi: 10.1109/ULTSYM.2012.0284
keyword:
- cavitation
- chemical reactors
- microphones
- process monitoring
- reliability
- ultrasonic applications
- ultrasonic waves
- acoustic properties
- cavitation based ultrasound applications
- cavitation intensity
- change detection reliability
- external microphone
- malfunction detection reliability
- nonperturbing cavitation detection
- nonperturbing cavitation monitoring
- process monitoring
- self-sensing ultrasound transducer
- sonochemical reactors
- sonochemistry
- ultrasound cleaning
- ultrasound irradiation
- Acoustics
- Liquids
- Monitoring
- Sensors
- Sonar equipment
- Transducers
- Ultrasonic imaging
language:
- iso: eng
page: 1141-1144
publication: Ultrasonics Symposium (IUS), 2012 IEEE International
publication_identifier:
issn:
- 1948-5719
quality_controlled: '1'
status: public
title: Non-perturbing cavitation detection / monitoring in sonochemical reactors
type: conference
user_id: '55222'
year: '2012'
...
---
_id: '9784'
abstract:
- lang: eng
text: Piezoelectric inertia motors use the inertia of a body to drive it by means
of a friction contact in a series of small steps. These motors can operate in
``stick-slip'' or ``slip-slip'' mode, with the fundamental frequency of the driving
signal ranging from several Hertz to more than 100 kHz. To predict the motor characteristics,
a Coulomb friction model is sufficient in many cases, but numerical simulation
requires microscopic time steps. This contribution proposes a much faster simulation
technique using one evaluation per period of the excitation signal. The proposed
technique produces results very close to those of timestep simulation for ultrasonics
inertia motors and allows direct determination of the steady-state velocity of
an inertia motor from the motion profile of the driving part. Thus it is a useful
simulation technique which can be applied in both analysis and design of inertia
motors, especially for parameter studies and optimisation.
author:
- first_name: Matthias
full_name: Hunstig, Matthias
last_name: Hunstig
- first_name: Tobias
full_name: Hemsel, Tobias
last_name: Hemsel
- first_name: Walter
full_name: Sextro, Walter
last_name: Sextro
citation:
ama: 'Hunstig M, Hemsel T, Sextro W. An efficient simulation technique for high-frequency
piezoelectric inertia motors. In: Ultrasonics Symposium (IUS), 2012 IEEE International.
; 2012:277-280. doi:10.1109/ULTSYM.2012.0068'
apa: Hunstig, M., Hemsel, T., & Sextro, W. (2012). An efficient simulation technique
for high-frequency piezoelectric inertia motors. In Ultrasonics Symposium (IUS),
2012 IEEE International (pp. 277–280). https://doi.org/10.1109/ULTSYM.2012.0068
bibtex: '@inproceedings{Hunstig_Hemsel_Sextro_2012, title={An efficient simulation
technique for high-frequency piezoelectric inertia motors}, DOI={10.1109/ULTSYM.2012.0068},
booktitle={Ultrasonics Symposium (IUS), 2012 IEEE International}, author={Hunstig,
Matthias and Hemsel, Tobias and Sextro, Walter}, year={2012}, pages={277–280}
}'
chicago: Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “An Efficient Simulation
Technique for High-Frequency Piezoelectric Inertia Motors.” In Ultrasonics
Symposium (IUS), 2012 IEEE International, 277–80, 2012. https://doi.org/10.1109/ULTSYM.2012.0068.
ieee: M. Hunstig, T. Hemsel, and W. Sextro, “An efficient simulation technique for
high-frequency piezoelectric inertia motors,” in Ultrasonics Symposium (IUS),
2012 IEEE International, 2012, pp. 277–280.
mla: Hunstig, Matthias, et al. “An Efficient Simulation Technique for High-Frequency
Piezoelectric Inertia Motors.” Ultrasonics Symposium (IUS), 2012 IEEE International,
2012, pp. 277–80, doi:10.1109/ULTSYM.2012.0068.
short: 'M. Hunstig, T. Hemsel, W. Sextro, in: Ultrasonics Symposium (IUS), 2012
IEEE International, 2012, pp. 277–280.'
date_created: 2019-05-13T13:20:17Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
doi: 10.1109/ULTSYM.2012.0068
keyword:
- friction
- ultrasonic motors
- Coulomb friction model
- efficient simulation technique
- friction contact
- high-frequency piezoelectric inertia motor
- motor characteristics prediction
- numerical simulation
- slip-slip mode
- stick-slip mode
- time-step simulation
- ultrasonic inertia motor
- Acceleration
- Acoustics
- Actuators
- Computational modeling
- Friction
- Numerical models
- Steady-state
language:
- iso: eng
page: 277-280
publication: Ultrasonics Symposium (IUS), 2012 IEEE International
publication_identifier:
issn:
- 1948-5719
quality_controlled: '1'
status: public
title: An efficient simulation technique for high-frequency piezoelectric inertia
motors
type: conference
user_id: '55222'
year: '2012'
...
---
_id: '9785'
abstract:
- lang: eng
text: Hydrothermal method enables to synthesize high quality piezoelectric materials.
To shorten the reaction time and to get higher quality materials, we propose an
ultrasonic irradiation to the solution during the hydrothermal method. We named
it ultrasonic assisted hydrothermal method (UAHTM). We have synthesized lead-free
piezoelectric material and PZT thin film and the effect of UAHTM have been confirmed.
In this study, we tried to improve UAHTM. First, to generate powerful and stable
ultrasonic irradiation at high temperature on UAHTM, we developed a new transducer
using LiNbO3 single crystal. Second, to prevent contamination to the materials,
A Teflon cover on the tip of transducer was attached.
author:
- first_name: Gaku
full_name: Isobe, Gaku
last_name: Isobe
- first_name: Ryo
full_name: Ageba, Ryo
last_name: Ageba
- first_name: Takafumi
full_name: Maeda, Takafumi
last_name: Maeda
- first_name: Peter
full_name: Bornmann, Peter
last_name: Bornmann
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Takeshi
full_name: Morita, Takeshi
last_name: Morita
citation:
ama: 'Isobe G, Ageba R, Maeda T, Bornmann P, Hemsel T, Morita T. Synthesis of piezoelectric
materials by ultrasonic assisted hydrothermal method. In: B. J. Linde B, Paczkowski
J, Ponikwicki N, eds. AIP Conference Proceedings. Vol 1433. AIP; 2012:569-572.
doi:10.1063/1.3703251'
apa: Isobe, G., Ageba, R., Maeda, T., Bornmann, P., Hemsel, T., & Morita, T.
(2012). Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal
method. In B. B. J. Linde, J. Paczkowski, & N. Ponikwicki (Eds.), AIP Conference
Proceedings (Vol. 1433, pp. 569–572). AIP. https://doi.org/10.1063/1.3703251
bibtex: '@inproceedings{Isobe_Ageba_Maeda_Bornmann_Hemsel_Morita_2012, title={Synthesis
of piezoelectric materials by ultrasonic assisted hydrothermal method}, volume={1433},
DOI={10.1063/1.3703251}, number={1},
booktitle={AIP Conference Proceedings}, publisher={AIP}, author={Isobe, Gaku and
Ageba, Ryo and Maeda, Takafumi and Bornmann, Peter and Hemsel, Tobias and Morita,
Takeshi}, editor={B. J. Linde, Bogumil and Paczkowski, Jacek and Ponikwicki, NikodemEditors},
year={2012}, pages={569–572} }'
chicago: Isobe, Gaku, Ryo Ageba, Takafumi Maeda, Peter Bornmann, Tobias Hemsel,
and Takeshi Morita. “Synthesis of Piezoelectric Materials by Ultrasonic Assisted
Hydrothermal Method.” In AIP Conference Proceedings, edited by Bogumil
B. J. Linde, Jacek Paczkowski, and Nikodem Ponikwicki, 1433:569–72. AIP, 2012.
https://doi.org/10.1063/1.3703251.
ieee: G. Isobe, R. Ageba, T. Maeda, P. Bornmann, T. Hemsel, and T. Morita, “Synthesis
of piezoelectric materials by ultrasonic assisted hydrothermal method,” in AIP
Conference Proceedings, 2012, vol. 1433, no. 1, pp. 569–572.
mla: Isobe, Gaku, et al. “Synthesis of Piezoelectric Materials by Ultrasonic Assisted
Hydrothermal Method.” AIP Conference Proceedings, edited by Bogumil B.
J. Linde et al., vol. 1433, no. 1, AIP, 2012, pp. 569–72, doi:10.1063/1.3703251.
short: 'G. Isobe, R. Ageba, T. Maeda, P. Bornmann, T. Hemsel, T. Morita, in: B.
B. J. Linde, J. Paczkowski, N. Ponikwicki (Eds.), AIP Conference Proceedings,
AIP, 2012, pp. 569–572.'
date_created: 2019-05-13T13:21:56Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
doi: 10.1063/1.3703251
editor:
- first_name: Bogumil
full_name: B. J. Linde, Bogumil
last_name: B. J. Linde
- first_name: Jacek
full_name: Paczkowski, Jacek
last_name: Paczkowski
- first_name: Nikodem
full_name: Ponikwicki, Nikodem
last_name: Ponikwicki
intvolume: ' 1433'
issue: '1'
keyword:
- contamination
- lead compounds
- piezoelectric materials
- piezoelectric thin films
- piezoelectric transducers
- ultrasonic effects
language:
- iso: eng
page: 569-572
publication: AIP Conference Proceedings
publisher: AIP
quality_controlled: '1'
status: public
title: Synthesis of piezoelectric materials by ultrasonic assisted hydrothermal method
type: conference
user_id: '55222'
volume: 1433
year: '2012'
...
---
_id: '9786'
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 selfoptimizing mechatronic systems and
shows how probabilistic planning can be used to improve the availability and reliability
of systems in the operating phase. The general idea to improve the availability
of autonomous systems by applying probabilistic planning methods to avoid energy
shortages is exemplified on the example of an innovative railway vehicle.
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
citation:
ama: Klöpper B, Sondermann-Wölke C, Romaus C. Probabilistic Planning for Predictive
Condition Monitoring and Adaptation Within the Self-Optimizing Energy Management
of an Autonomous Railway Vehicle. Journal of Robotics and Mechatronics.
2012;24(1):5-15.
apa: Klöpper, B., Sondermann-Wölke, C., & Romaus, C. (2012). Probabilistic Planning
for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing
Energy Management of an Autonomous Railway Vehicle. Journal of Robotics and
Mechatronics, 24(1), 5–15.
bibtex: '@article{Klöpper_Sondermann-Wölke_Romaus_2012, title={Probabilistic Planning
for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing
Energy Management of an Autonomous Railway Vehicle}, volume={24}, number={1},
journal={Journal of Robotics and Mechatronics}, author={Klöpper, Benjamin and
Sondermann-Wölke, Christoph and Romaus, Christoph}, year={2012}, pages={5–15}
}'
chicago: 'Klöpper, Benjamin, Christoph Sondermann-Wölke, and Christoph Romaus. “Probabilistic
Planning for Predictive Condition Monitoring and Adaptation Within the Self-Optimizing
Energy Management of an Autonomous Railway Vehicle.” Journal of Robotics and
Mechatronics 24, no. 1 (2012): 5–15.'
ieee: B. Klöpper, C. Sondermann-Wölke, and C. Romaus, “Probabilistic Planning for
Predictive Condition Monitoring and Adaptation Within the Self-Optimizing Energy
Management of an Autonomous Railway Vehicle,” Journal of Robotics and Mechatronics,
vol. 24, no. 1, pp. 5–15, 2012.
mla: Klöpper, Benjamin, et al. “Probabilistic Planning for Predictive Condition
Monitoring and Adaptation Within the Self-Optimizing Energy Management of an Autonomous
Railway Vehicle.” Journal of Robotics and Mechatronics, vol. 24, no. 1,
2012, pp. 5–15.
short: B. Klöpper, C. Sondermann-Wölke, C. Romaus, Journal of Robotics and Mechatronics
24 (2012) 5–15.
date_created: 2019-05-13T13:23:45Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
intvolume: ' 24'
issue: '1'
keyword:
- self-optimizing systems
- dependability
- probabilistic planning
- energy management
language:
- iso: eng
page: 5-15
publication: Journal of Robotics and Mechatronics
quality_controlled: '1'
status: public
title: Probabilistic Planning for Predictive Condition Monitoring and Adaptation Within
the Self-Optimizing Energy Management of an Autonomous Railway Vehicle
type: journal_article
user_id: '55222'
volume: 24
year: '2012'
...
---
_id: '9787'
author:
- first_name: Sergej
full_name: Kohl, Sergej
last_name: Kohl
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
- first_name: Armin
full_name: Zuber, Armin
last_name: Zuber
citation:
ama: 'Kohl S, Sextro W, Zuber A. Benteler Vehicle Dynamics -- Fahrdynamikentwicklung
basierend auf einer neuen Auslegungstheorie. In: 8. Tag Des Fahrwerks, Aachen,
2012. Institut für Kraftfahrzeuge, RWTH Aachen University in Aachen; 2012:38-60.'
apa: Kohl, S., Sextro, W., & Zuber, A. (2012). Benteler Vehicle Dynamics --
Fahrdynamikentwicklung basierend auf einer neuen Auslegungstheorie. In 8. Tag
des Fahrwerks, Aachen, 2012 (pp. 38–60). Institut für Kraftfahrzeuge, RWTH
Aachen University in Aachen.
bibtex: '@inproceedings{Kohl_Sextro_Zuber_2012, place={Institut für Kraftfahrzeuge,
RWTH Aachen University in Aachen}, title={Benteler Vehicle Dynamics -- Fahrdynamikentwicklung
basierend auf einer neuen Auslegungstheorie}, booktitle={8. Tag des Fahrwerks,
Aachen, 2012}, author={Kohl, Sergej and Sextro, Walter and Zuber, Armin}, year={2012},
pages={38–60} }'
chicago: Kohl, Sergej, Walter Sextro, and Armin Zuber. “Benteler Vehicle Dynamics
-- Fahrdynamikentwicklung Basierend Auf Einer Neuen Auslegungstheorie.” In 8.
Tag Des Fahrwerks, Aachen, 2012, 38–60. Institut für Kraftfahrzeuge, RWTH
Aachen University in Aachen, 2012.
ieee: S. Kohl, W. Sextro, and A. Zuber, “Benteler Vehicle Dynamics -- Fahrdynamikentwicklung
basierend auf einer neuen Auslegungstheorie,” in 8. Tag des Fahrwerks, Aachen,
2012, 2012, pp. 38–60.
mla: Kohl, Sergej, et al. “Benteler Vehicle Dynamics -- Fahrdynamikentwicklung Basierend
Auf Einer Neuen Auslegungstheorie.” 8. Tag Des Fahrwerks, Aachen, 2012,
2012, pp. 38–60.
short: 'S. Kohl, W. Sextro, A. Zuber, in: 8. Tag Des Fahrwerks, Aachen, 2012, Institut
für Kraftfahrzeuge, RWTH Aachen University in Aachen, 2012, pp. 38–60.'
date_created: 2019-05-13T13:25:59Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
language:
- iso: eng
page: 38-60
place: Institut für Kraftfahrzeuge, RWTH Aachen University in Aachen
popular_science: '1'
publication: 8. Tag des Fahrwerks, Aachen, 2012
status: public
title: Benteler Vehicle Dynamics -- Fahrdynamikentwicklung basierend auf einer neuen
Auslegungstheorie
type: conference
user_id: '55222'
year: '2012'
...
---
_id: '9788'
abstract:
- lang: eng
text: 'A hydrothermal method utilizes a crystallization process in the solution
so that the pure and high-quality powders can be realized. Sintering from the
hydrothermal KNbO3 and NaNbO3 powders, a high-dense lead-free piezoelectric (K,Na)NbO3
ceramics could be obtained (density: 98.8\%). Concerning about the g33 constant,
high value as large as commercial PZT ceramics was measured. Therefore, the hydrothermal
(K,Na)NbO3 ceramics is usable for the sensors and the energy harvesting devices.
To demonstrate the (K,Na)NbO3 ceramics, a hydrophone sensor was fabricated and
evaluated.'
author:
- first_name: Takafumi
full_name: Maeda, Takafumi
last_name: Maeda
- first_name: Peter
full_name: Bornmann, Peter
last_name: Bornmann
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Takeshi
full_name: Morita, Takeshi
last_name: Morita
citation:
ama: 'Maeda T, Bornmann P, Hemsel T, Morita T. Piezoelectric applications of hydrothermal
lead-free (K0.48Na0.52)NbO3 ceramics. In: Ultrasonics Symposium (IUS), 2012
IEEE International. ; 2012:194-195. doi:10.1109/ULTSYM.2012.0048'
apa: Maeda, T., Bornmann, P., Hemsel, T., & Morita, T. (2012). Piezoelectric
applications of hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics. In Ultrasonics
Symposium (IUS), 2012 IEEE International (pp. 194–195). https://doi.org/10.1109/ULTSYM.2012.0048
bibtex: '@inproceedings{Maeda_Bornmann_Hemsel_Morita_2012, title={Piezoelectric
applications of hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics}, DOI={10.1109/ULTSYM.2012.0048},
booktitle={Ultrasonics Symposium (IUS), 2012 IEEE International}, author={Maeda,
Takafumi and Bornmann, Peter and Hemsel, Tobias and Morita, Takeshi}, year={2012},
pages={194–195} }'
chicago: Maeda, Takafumi, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Piezoelectric
Applications of Hydrothermal Lead-Free (K0.48Na0.52)NbO3 Ceramics.” In Ultrasonics
Symposium (IUS), 2012 IEEE International, 194–95, 2012. https://doi.org/10.1109/ULTSYM.2012.0048.
ieee: T. Maeda, P. Bornmann, T. Hemsel, and T. Morita, “Piezoelectric applications
of hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics,” in Ultrasonics Symposium
(IUS), 2012 IEEE International, 2012, pp. 194–195.
mla: Maeda, Takafumi, et al. “Piezoelectric Applications of Hydrothermal Lead-Free
(K0.48Na0.52)NbO3 Ceramics.” Ultrasonics Symposium (IUS), 2012 IEEE International,
2012, pp. 194–95, doi:10.1109/ULTSYM.2012.0048.
short: 'T. Maeda, P. Bornmann, T. Hemsel, T. Morita, in: Ultrasonics Symposium (IUS),
2012 IEEE International, 2012, pp. 194–195.'
date_created: 2019-05-13T13:28:05Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
doi: 10.1109/ULTSYM.2012.0048
keyword:
- crystallisation
- hydrophones
- piezoceramics
- potassium compounds
- powder technology
- powders
- sensors
- sintering
- sodium compounds
- (K0.48Na0.52)NbO3
- KNbO3 powder
- NaNbO3 powder
- crystallization
- energy harvesting devices
- g33 constant
- hydrophone sensor
- hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics
- hydrothermal method
- piezoelectric applications
- sintering
- Materials
- Transducers
language:
- iso: eng
page: 194-195
publication: Ultrasonics Symposium (IUS), 2012 IEEE International
publication_identifier:
issn:
- 1948-5719
quality_controlled: '1'
status: public
title: Piezoelectric applications of hydrothermal lead-free (K0.48Na0.52)NbO3 ceramics
type: conference
user_id: '55222'
year: '2012'
...
---
_id: '9789'
abstract:
- lang: eng
text: '[$Li_x(Na_0.52K_0.48)_1-x]NbO_3 (0 \leq x \leq 0.091)$ ceramics were synthesized
using hydrothermal powders and the lithium doping content was controlled to optimize
their piezoelectric properties. The raw KNbO$_3$ and NaNbO$_3$ powders were obtained
separately by a hydrothermal method and LiNbO$_3$ powders were prepared by milling
a commercial LiNbO$_3$ single crystal. These powders were mixed with ethanol at
a molar ratio LiNbO$_3$: ($Na_0.52K_0.48$)NbO$_3 = x : 1-x$. The synthesized powders
were sintered at 1060--1120 $\,^{\circ}$C for 2 h. We succeeded in obtaining highly
dense [$Li_x(Na_0.52K_0.48)_1-x]NbO_3$ ceramics using hydrothermal powder. The
X-ray diffraction patterns revealed that the crystal phase changed from orthorhombic
to tetragonal at around x = 0.06. At this morphotropic phase boundary (MPB), the
c/a ratio changed from 1.016 to 1.024 and the highest piezoelectric constant was
obtained with the chemical component of [$Li_x(Na_0.52K_0.48)_1-x]NbO_3$. The
obtained piezoelectric properties were as follows: $k_33 = 0.51, \epsilon 33^T/
\epsilon _0 = 836$ , $c_33^E = 46$ GPa, $d_33 = 203$ pC/N, and $T_c = 482 $\,^{\circ}$C$.'
author:
- first_name: Takafumi
full_name: Maeda, Takafumi
last_name: Maeda
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Takeshi
full_name: Morita, Takeshi
last_name: Morita
citation:
ama: Maeda T, Hemsel T, Morita T. Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3
Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders.
Japanese Journal of Applied Physics. 2012;51:09MD08. doi:10.1143/JJAP.51.09MD08
apa: Maeda, T., Hemsel, T., & Morita, T. (2012). Piezoelectric Properties of
Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3
and NaNbO3 Fine Powders. Japanese Journal of Applied Physics, 51,
09MD08. https://doi.org/10.1143/JJAP.51.09MD08
bibtex: '@article{Maeda_Hemsel_Morita_2012, title={Piezoelectric Properties of Li-Doped
(K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and
NaNbO3 Fine Powders}, volume={51}, DOI={10.1143/JJAP.51.09MD08},
journal={Japanese Journal of Applied Physics}, publisher={The Japan Society of
Applied Physics}, author={Maeda, Takafumi and Hemsel, Tobias and Morita, Takeshi},
year={2012}, pages={09MD08} }'
chicago: 'Maeda, Takafumi, Tobias Hemsel, and Takeshi Morita. “Piezoelectric Properties
of Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived
KNbO3 and NaNbO3 Fine Powders.” Japanese Journal of Applied Physics 51
(2012): 09MD08. https://doi.org/10.1143/JJAP.51.09MD08.'
ieee: T. Maeda, T. Hemsel, and T. Morita, “Piezoelectric Properties of Li-Doped
(K0.48Na0.52)NbO3 Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and
NaNbO3 Fine Powders,” Japanese Journal of Applied Physics, vol. 51, p.
09MD08, 2012.
mla: Maeda, Takafumi, et al. “Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3
Ceramics Synthesized Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders.”
Japanese Journal of Applied Physics, vol. 51, The Japan Society of Applied
Physics, 2012, p. 09MD08, doi:10.1143/JJAP.51.09MD08.
short: T. Maeda, T. Hemsel, T. Morita, Japanese Journal of Applied Physics 51 (2012)
09MD08.
date_created: 2019-05-13T13:29:10Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
doi: 10.1143/JJAP.51.09MD08
intvolume: ' 51'
language:
- iso: eng
page: 09MD08
publication: Japanese Journal of Applied Physics
publisher: The Japan Society of Applied Physics
quality_controlled: '1'
status: public
title: Piezoelectric Properties of Li-Doped (K0.48Na0.52)NbO3 Ceramics Synthesized
Using Hydrothermally-Derived KNbO3 and NaNbO3 Fine Powders
type: journal_article
user_id: '55222'
volume: 51
year: '2012'
...
---
_id: '9791'
abstract:
- lang: eng
text: 'The rapid development of communication and information technology opens up
fascinating perspectives, which go far beyond the state of the art in mechatronics:
mechatronic systems with inherent partial intelligence. These so called self-optimizing
systems adapt their objectives and behavior autonomously and flexibly to changing
operating conditions. On the one hand, securing the dependability of such systems
is challenging due to their complexity and non-deterministic behavior. On the
other hand, self-optimization can be used to increase the dependability of the
system during its operation. However, it has to be ensured, that the self-optimization
works dependable itself. To cope with these challenges, the multi-level dependability
concept was developed. It enables predictive condition monitoring, influences
the objectives of the system and determines suitable means to improve the system''s
dependability during its operation. In this contribution we introduce a procedure
for the conceptual design of an advanced condition monitoring based on the system''s
principle solution. The principle solution describes the principal operation mode
of the system and its desired behavior. It is modeled using the specification
technique for the domain-spanning description of the principle solution of a self-optimizing
system and consists of a coherent system of eight partial models (e.g. requirements,
active structure, system of objectives, behavior, etc.). The partial models are
analyzed separately in order to derive the components of the multi-level dependability
concept. In particular, the reliability analysis of the partial model active structure
is performed to identify the system elements to be monitored and parameters to
be measured. The principle solution is extended accordingly: e.g. with system
elements required for the realization of the dependability concept. The advantages
of the method are shown on the self-optimizing guidance module of a railroad vehicle.'
author:
- first_name: Christoph
full_name: Sondermann-Wölke , Christoph
last_name: 'Sondermann-Wölke '
- first_name: Tobias
full_name: Meyer, Tobias
last_name: Meyer
- first_name: Rafal
full_name: Dorociak, Rafal
last_name: Dorociak
- first_name: Jürgen
full_name: Gausemeier, Jürgen
last_name: Gausemeier
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: 'Sondermann-Wölke C, Meyer T, Dorociak R, Gausemeier J, Sextro W. Conceptual
Design of Advanced Condition Monitoring for a Self-Optimizing System based on
its Principle Solution. In: Proceedings of the 11th International Probabilistic
Safety Assessment and Management Conference (PSAM11) and The Annual European Safety
and Reliability Conference (ESREL2012). Helsinki, Finland; 2012.'
apa: Sondermann-Wölke , C., Meyer, T., Dorociak, R., Gausemeier, J., & Sextro,
W. (2012). Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing
System based on its Principle Solution. In Proceedings of the 11th International
Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual
European Safety and Reliability Conference (ESREL2012). Helsinki, Finland.
bibtex: '@inproceedings{Sondermann-Wölke _Meyer_Dorociak_Gausemeier_Sextro_2012,
place={Helsinki, Finland}, title={Conceptual Design of Advanced Condition Monitoring
for a Self-Optimizing System based on its Principle Solution}, booktitle={Proceedings
of the 11th International Probabilistic Safety Assessment and Management Conference
(PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012)},
author={Sondermann-Wölke , Christoph and Meyer, Tobias and Dorociak, Rafal and
Gausemeier, Jürgen and Sextro, Walter}, year={2012} }'
chicago: Sondermann-Wölke , Christoph, Tobias Meyer, Rafal Dorociak, Jürgen Gausemeier,
and Walter Sextro. “Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing
System Based on Its Principle Solution.” In Proceedings of the 11th International
Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual
European Safety and Reliability Conference (ESREL2012). Helsinki, Finland,
2012.
ieee: C. Sondermann-Wölke , T. Meyer, R. Dorociak, J. Gausemeier, and W. Sextro,
“Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing System
based on its Principle Solution,” in Proceedings of the 11th International
Probabilistic Safety Assessment and Management Conference (PSAM11) and The Annual
European Safety and Reliability Conference (ESREL2012), 2012.
mla: Sondermann-Wölke , Christoph, et al. “Conceptual Design of Advanced Condition
Monitoring for a Self-Optimizing System Based on Its Principle Solution.” Proceedings
of the 11th International Probabilistic Safety Assessment and Management Conference
(PSAM11) and The Annual European Safety and Reliability Conference (ESREL2012),
2012.
short: 'C. Sondermann-Wölke , T. Meyer, R. Dorociak, J. Gausemeier, W. Sextro, in:
Proceedings of the 11th International Probabilistic Safety Assessment and Management
Conference (PSAM11) and The Annual European Safety and Reliability Conference
(ESREL2012), Helsinki, Finland, 2012.'
date_created: 2019-05-13T13:41:34Z
date_updated: 2022-01-06T07:04:20Z
department:
- _id: '151'
keyword:
- Mechatronic Systems
- Principle Solution
- Condition Monitoring
- Conceptual Design
language:
- iso: eng
place: Helsinki, Finland
publication: Proceedings of the 11th International Probabilistic Safety Assessment
and Management Conference (PSAM11) and The Annual European Safety and Reliability
Conference (ESREL2012)
quality_controlled: '1'
status: public
title: Conceptual Design of Advanced Condition Monitoring for a Self-Optimizing System
based on its Principle Solution
type: conference
user_id: '55222'
year: '2012'
...
---
_id: '9806'
abstract:
- lang: eng
text: Piezoelectric inertia motors, also known as ``stick-slip-drives'', use the
inertia of a body to drive it by means of a friction contact in small steps. While
these steps normally involve stiction and sliding, the motors can also operate
in ``slip-slip'' mode without any phase of static friction. In this contribution,
a one degree of freedom model of an inertia motor driven by an ideal actuator
is analysed. Start-up and constant velocity operation of the motor are investigated
and appropriate quantities to compare ``stick-slip'' and ``slip-slip'' operation
are determined. Different aspects such as velocity, uniformity of motion, load
capacity, robustness, efficiency, and wear are considered. The analysis allows
both modes to be applied advantageously in different applications and can widen
the field of application of piezoelectric inertia motors. Motor designers are
enabled to choose the appropriate mode of operation and the best drive parameters
for their individual applications.
author:
- first_name: Matthias
full_name: Hunstig, Matthias
last_name: Hunstig
- first_name: Tobias
full_name: Hemsel, Tobias
id: '210'
last_name: Hemsel
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: Hunstig M, Hemsel T, Sextro W. Analysis of different operation modes for inertia
motors. ACTUATOR 2012 Conference Proceedings. 2012:761-764.
apa: Hunstig, M., Hemsel, T., & Sextro, W. (2012). Analysis of different operation
modes for inertia motors. ACTUATOR 2012 Conference Proceedings, 761–764.
bibtex: '@article{Hunstig_Hemsel_Sextro_2012, title={Analysis of different operation
modes for inertia motors}, journal={ACTUATOR 2012 Conference Proceedings}, author={Hunstig,
Matthias and Hemsel, Tobias and Sextro, Walter}, year={2012}, pages={761–764}
}'
chicago: Hunstig, Matthias, Tobias Hemsel, and Walter Sextro. “Analysis of Different
Operation Modes for Inertia Motors.” ACTUATOR 2012 Conference Proceedings,
2012, 761–64.
ieee: M. Hunstig, T. Hemsel, and W. Sextro, “Analysis of different operation modes
for inertia motors,” ACTUATOR 2012 Conference Proceedings, pp. 761–764,
2012.
mla: Hunstig, Matthias, et al. “Analysis of Different Operation Modes for Inertia
Motors.” ACTUATOR 2012 Conference Proceedings, 2012, pp. 761–64.
short: M. Hunstig, T. Hemsel, W. Sextro, ACTUATOR 2012 Conference Proceedings (2012)
761–764.
date_created: 2019-05-13T14:11:37Z
date_updated: 2022-01-06T07:04:21Z
department:
- _id: '151'
keyword:
- Piezoelectric Inertia Motors
- Drive Signals
- Stick-slip
- Slip-slip
language:
- iso: eng
page: 761-764
publication: ACTUATOR 2012 Conference Proceedings
quality_controlled: '1'
status: public
title: Analysis of different operation modes for inertia motors
type: journal_article
user_id: '55222'
year: '2012'
...
---
_id: '4095'
abstract:
- lang: eng
text: "Aiming to diminish the reflection losses of glass covered light harvesting
devices, the optical reflectivity\r\nof nanostructured glass surfaces is studied
theoretically and experimentally. The work is inspired by\r\nthe nanoscale roughness
of insect eyes, which is tried to be replicated on a technical glass surface.
To\r\nthis end, the reflectivity of glass surfaces with topographies represented
by linear, parabolic and Fermishaped\r\nglass/air fill factor profiles is calculated
for normal incidence. It is shown that using the latter ones,\r\nan almost complete
suppression of reflections can be achieved. A simple, self-organization technique
to\r\ncreate such Fermi-shaped filling factor profiles in glass experimentally
is also presented."
article_type: original
author:
- first_name: J.
full_name: Achtelik, J.
last_name: Achtelik
- first_name: W.
full_name: Sievers, W.
last_name: Sievers
- first_name: Jörg
full_name: Lindner, Jörg
id: '20797'
last_name: Lindner
citation:
ama: 'Achtelik J, Sievers W, Lindner J. Biomimetic approaches to create anti-reflection
glass surfaces for solar cells using self-organizing techniques. Materials
Science and Engineering: B. 2012;178(9):635-638. doi:10.1016/j.mseb.2012.10.014'
apa: 'Achtelik, J., Sievers, W., & Lindner, J. (2012). Biomimetic approaches
to create anti-reflection glass surfaces for solar cells using self-organizing
techniques. Materials Science and Engineering: B, 178(9), 635–638.
https://doi.org/10.1016/j.mseb.2012.10.014'
bibtex: '@article{Achtelik_Sievers_Lindner_2012, title={Biomimetic approaches to
create anti-reflection glass surfaces for solar cells using self-organizing techniques},
volume={178}, DOI={10.1016/j.mseb.2012.10.014},
number={9}, journal={Materials Science and Engineering: B}, publisher={Elsevier
BV}, author={Achtelik, J. and Sievers, W. and Lindner, Jörg}, year={2012}, pages={635–638}
}'
chicago: 'Achtelik, J., W. Sievers, and Jörg Lindner. “Biomimetic Approaches to
Create Anti-Reflection Glass Surfaces for Solar Cells Using Self-Organizing Techniques.”
Materials Science and Engineering: B 178, no. 9 (2012): 635–38. https://doi.org/10.1016/j.mseb.2012.10.014.'
ieee: 'J. Achtelik, W. Sievers, and J. Lindner, “Biomimetic approaches to create
anti-reflection glass surfaces for solar cells using self-organizing techniques,”
Materials Science and Engineering: B, vol. 178, no. 9, pp. 635–638, 2012.'
mla: 'Achtelik, J., et al. “Biomimetic Approaches to Create Anti-Reflection Glass
Surfaces for Solar Cells Using Self-Organizing Techniques.” Materials Science
and Engineering: B, vol. 178, no. 9, Elsevier BV, 2012, pp. 635–38, doi:10.1016/j.mseb.2012.10.014.'
short: 'J. Achtelik, W. Sievers, J. Lindner, Materials Science and Engineering:
B 178 (2012) 635–638.'
conference:
end_date: 2012-05-18
location: Straßburg (France)
name: European Materials Research Society Spring Meeting 2012
start_date: 2012-05-14
date_created: 2018-08-23T12:37:40Z
date_updated: 2022-01-06T07:00:16Z
ddc:
- '530'
department:
- _id: '15'
- _id: '286'
- _id: '230'
doi: 10.1016/j.mseb.2012.10.014
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-23T12:39:27Z
date_updated: 2018-08-23T12:39:27Z
file_id: '4096'
file_name: Biomimetic approaches to create anti-reflection glass surfaces for solar
cells using self-organizing techniques.pdf
file_size: 729276
relation: main_file
success: 1
file_date_updated: 2018-08-23T12:39:27Z
has_accepted_license: '1'
intvolume: ' 178'
issue: '9'
language:
- iso: eng
page: 635-638
publication: 'Materials Science and Engineering: B'
publication_identifier:
issn:
- 0921-5107
publication_status: published
publisher: Elsevier BV
status: public
title: Biomimetic approaches to create anti-reflection glass surfaces for solar cells
using self-organizing techniques
type: journal_article
user_id: '55706'
volume: 178
year: '2012'
...
---
_id: '4114'
abstract:
- lang: eng
text: Two methods to create biomimetic anti-reflection nanostructures in ordinary
glass microscope object slides are presented. One technique is based on a nanosphere
lithography process combined with physical vapour deposition of nickel and reactive
ion etching (RIE). The other uses plasma induced dewetting of a smooth nickel
surface. The amount of reflected light was measured and a method to simulate the
reflectivity from an atomic force microscopy (AFM) topography scan of the glass
surface is presented. The reflectivity for visible light at normal incidence was
reduced to 20-50 % of the original value with both methods and the simulation
gives results in good agreement to the measurement.
article_type: original
author:
- first_name: Jörn
full_name: Achtelik, Jörn
last_name: Achtelik
- first_name: Ricarda M.
full_name: Kemper, Ricarda M.
last_name: Kemper
- first_name: Werner
full_name: Sievers, Werner
last_name: Sievers
- first_name: Jörg
full_name: Lindner, Jörg
last_name: Lindner
citation:
ama: Achtelik J, Kemper RM, Sievers W, Lindner J. Self-Organized Nanostructure Formation
for Anti-Reflection Glass Surfaces. MRS Proceedings. 2012;1389. doi:10.1557/opl.2012.491
apa: Achtelik, J., Kemper, R. M., Sievers, W., & Lindner, J. (2012). Self-Organized
Nanostructure Formation for Anti-Reflection Glass Surfaces. MRS Proceedings,
1389. https://doi.org/10.1557/opl.2012.491
bibtex: '@article{Achtelik_Kemper_Sievers_Lindner_2012, title={Self-Organized Nanostructure
Formation for Anti-Reflection Glass Surfaces}, volume={1389}, DOI={10.1557/opl.2012.491},
journal={MRS Proceedings}, publisher={Cambridge University Press (CUP)}, author={Achtelik,
Jörn and Kemper, Ricarda M. and Sievers, Werner and Lindner, Jörg}, year={2012}
}'
chicago: Achtelik, Jörn, Ricarda M. Kemper, Werner Sievers, and Jörg Lindner. “Self-Organized
Nanostructure Formation for Anti-Reflection Glass Surfaces.” MRS Proceedings
1389 (2012). https://doi.org/10.1557/opl.2012.491.
ieee: J. Achtelik, R. M. Kemper, W. Sievers, and J. Lindner, “Self-Organized Nanostructure
Formation for Anti-Reflection Glass Surfaces,” MRS Proceedings, vol. 1389,
2012.
mla: Achtelik, Jörn, et al. “Self-Organized Nanostructure Formation for Anti-Reflection
Glass Surfaces.” MRS Proceedings, vol. 1389, Cambridge University Press
(CUP), 2012, doi:10.1557/opl.2012.491.
short: J. Achtelik, R.M. Kemper, W. Sievers, J. Lindner, MRS Proceedings 1389 (2012).
conference:
end_date: 2011-12-02
location: Boston (USA)
name: MRS Fall Meeting 2011
start_date: 2011-11-28
date_created: 2018-08-23T13:29:50Z
date_updated: 2022-01-06T07:00:18Z
department:
- _id: '15'
- _id: '286'
doi: 10.1557/opl.2012.491
intvolume: ' 1389'
language:
- iso: eng
publication: MRS Proceedings
publication_identifier:
issn:
- 1946-4274
publication_status: published
publisher: Cambridge University Press (CUP)
status: public
title: Self-Organized Nanostructure Formation for Anti-Reflection Glass Surfaces
type: journal_article
user_id: '55706'
volume: 1389
year: '2012'
...
---
_id: '4115'
author:
- first_name: Christoph
full_name: Brodehl, Christoph
id: '30380'
last_name: Brodehl
- first_name: Siegmund
full_name: Greulich-Weber, Siegmund
last_name: Greulich-Weber
- first_name: Jörg
full_name: Lindner, Jörg
id: '20797'
last_name: Lindner
citation:
ama: 'Brodehl C, Greulich-Weber S, Lindner J. Gyrotropic Metamaterials. In: ; 2012.'
apa: Brodehl, C., Greulich-Weber, S., & Lindner, J. (2012). Gyrotropic Metamaterials.
Presented at the GRK1464 Convention on Micro- and Nanostructures in Optoelectronics
and Photonics, Paderborn.
bibtex: '@inproceedings{Brodehl_Greulich-Weber_Lindner_2012, title={Gyrotropic Metamaterials},
author={Brodehl, Christoph and Greulich-Weber, Siegmund and Lindner, Jörg}, year={2012}
}'
chicago: Brodehl, Christoph, Siegmund Greulich-Weber, and Jörg Lindner. “Gyrotropic
Metamaterials,” 2012.
ieee: C. Brodehl, S. Greulich-Weber, and J. Lindner, “Gyrotropic Metamaterials,”
presented at the GRK1464 Convention on Micro- and Nanostructures in Optoelectronics
and Photonics, Paderborn, 2012.
mla: Brodehl, Christoph, et al. Gyrotropic Metamaterials. 2012.
short: 'C. Brodehl, S. Greulich-Weber, J. Lindner, in: 2012.'
conference:
end_date: 2012-12-04
location: Paderborn
name: GRK1464 Convention on Micro- and Nanostructures in Optoelectronics and Photonics
start_date: 2012-12-04
date_created: 2018-08-23T13:34:01Z
date_updated: 2022-01-06T07:00:18Z
department:
- _id: '15'
- _id: '286'
language:
- iso: eng
status: public
title: Gyrotropic Metamaterials
type: conference
user_id: '55706'
year: '2012'
...
---
_id: '4131'
abstract:
- lang: eng
text: "We report an anisotropic formation of defects in cubic GaN grown on nano-patterned
3C-SiC/Si (001) by molecular\r\nbeam epitaxy. Nano-patterning of 3C-SiC/Si (001)
is achieved by nanosphere lithography and a reactive\r\nion etching process. Atomic
force microscopy and scanning electron microscopy show that the selectivearea-\r\ngrown
cubic GaN nucleates in two structurally different domains, which most probably
originate from the\r\nsubstrate. In adjacent domains the formation of defects,
especially hexagonal inclusions, is different and leads to\r\ntwo different surface
morphologies. The dominant phase within these domains was measured by electron
backscatter\r\ndiffraction. Optical properties were investigated by micro-photoluminescence
and cathodoluminescence spectroscopy."
article_type: original
author:
- first_name: R. M.
full_name: Kemper, R. M.
last_name: Kemper
- first_name: M.
full_name: Häberlen, M.
last_name: Häberlen
- first_name: T.
full_name: Schupp, T.
last_name: Schupp
- first_name: M.
full_name: Weinl, M.
last_name: Weinl
- first_name: M.
full_name: Bürger, M.
last_name: Bürger
- first_name: M.
full_name: Ruth, M.
last_name: Ruth
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- first_name: T.
full_name: Niendorf, T.
last_name: Niendorf
- first_name: H. J.
full_name: Maier, H. J.
last_name: Maier
- first_name: K.
full_name: Lischka, K.
last_name: Lischka
- first_name: D. J.
full_name: As, D. J.
last_name: As
- first_name: Jörg
full_name: Lindner, Jörg
last_name: Lindner
citation:
ama: Kemper RM, Häberlen M, Schupp T, et al. Formation of defects in cubic GaN grown
on nano-patterned 3C-SiC (001). physica status solidi (c). 2012;9(3-4):1028-1031.
doi:10.1002/pssc.201100174
apa: Kemper, R. M., Häberlen, M., Schupp, T., Weinl, M., Bürger, M., Ruth, M., …
Lindner, J. (2012). Formation of defects in cubic GaN grown on nano-patterned
3C-SiC (001). Physica Status Solidi (C), 9(3–4), 1028–1031. https://doi.org/10.1002/pssc.201100174
bibtex: '@article{Kemper_Häberlen_Schupp_Weinl_Bürger_Ruth_Meier_Niendorf_Maier_Lischka_et
al._2012, title={Formation of defects in cubic GaN grown on nano-patterned 3C-SiC
(001)}, volume={9}, DOI={10.1002/pssc.201100174},
number={3–4}, journal={physica status solidi (c)}, publisher={Wiley}, author={Kemper,
R. M. and Häberlen, M. and Schupp, T. and Weinl, M. and Bürger, M. and Ruth, M.
and Meier, Cedrik and Niendorf, T. and Maier, H. J. and Lischka, K. and et al.},
year={2012}, pages={1028–1031} }'
chicago: 'Kemper, R. M., M. Häberlen, T. Schupp, M. Weinl, M. Bürger, M. Ruth, Cedrik
Meier, et al. “Formation of Defects in Cubic GaN Grown on Nano-Patterned 3C-SiC
(001).” Physica Status Solidi (C) 9, no. 3–4 (2012): 1028–31. https://doi.org/10.1002/pssc.201100174.'
ieee: R. M. Kemper et al., “Formation of defects in cubic GaN grown on nano-patterned
3C-SiC (001),” physica status solidi (c), vol. 9, no. 3–4, pp. 1028–1031,
2012.
mla: Kemper, R. M., et al. “Formation of Defects in Cubic GaN Grown on Nano-Patterned
3C-SiC (001).” Physica Status Solidi (C), vol. 9, no. 3–4, Wiley, 2012,
pp. 1028–31, doi:10.1002/pssc.201100174.
short: R.M. Kemper, M. Häberlen, T. Schupp, M. Weinl, M. Bürger, M. Ruth, C. Meier,
T. Niendorf, H.J. Maier, K. Lischka, D.J. As, J. Lindner, Physica Status Solidi
(C) 9 (2012) 1028–1031.
date_created: 2018-08-27T11:31:07Z
date_updated: 2022-01-06T07:00:23Z
ddc:
- '530'
department:
- _id: '286'
- _id: '287'
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1002/pssc.201100174
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T11:35:10Z
date_updated: 2018-08-27T11:35:10Z
file_id: '4132'
file_name: Formation of defects in cubic GaN grown on nano-patterned 3C-SiC 001.pdf
file_size: 848414
relation: main_file
success: 1
file_date_updated: 2018-08-27T11:35:10Z
has_accepted_license: '1'
intvolume: ' 9'
issue: 3-4
language:
- iso: eng
page: 1028-1031
publication: physica status solidi (c)
publication_identifier:
issn:
- 1862-6351
publication_status: published
publisher: Wiley
status: public
title: Formation of defects in cubic GaN grown on nano-patterned 3C-SiC (001)
type: journal_article
user_id: '20798'
volume: 9
year: '2012'
...
---
_id: '4133'
author:
- first_name: R.M.
full_name: Kemper, R.M.
last_name: Kemper
- first_name: L.
full_name: Hiller, L.
last_name: Hiller
- first_name: T.
full_name: Stauden, T.
last_name: Stauden
- first_name: 'J. '
full_name: 'Pezoldt, J. '
last_name: Pezoldt
- first_name: D.
full_name: Meertens, D.
last_name: Meertens
- first_name: 'M. '
full_name: 'Luysberg, M. '
last_name: Luysberg
- first_name: K.
full_name: Tillmann, K.
last_name: Tillmann
- first_name: Thomas
full_name: Riedl, Thomas
id: '36950'
last_name: Riedl
- first_name: Donald
full_name: As, Donald
last_name: As
- first_name: Jörg
full_name: Lindner, Jörg
id: '20797'
last_name: Lindner
citation:
ama: 'Kemper RM, Hiller L, Stauden T, et al. TEM investigation of GaN thin films
grown on nanostructured 3C-SiC/Si(001) substrates. In: ; 2012.'
apa: Kemper, R. M., Hiller, L., Stauden, T., Pezoldt, J., Meertens, D., Luysberg,
M., … Lindner, J. (2012). TEM investigation of GaN thin films grown on nanostructured
3C-SiC/Si(001) substrates. Presented at the European Microscopy Congress (EMC)
2012, Manchester (UK).
bibtex: '@inproceedings{Kemper_Hiller_Stauden_Pezoldt_Meertens_Luysberg_Tillmann_Riedl_As_Lindner_2012,
title={TEM investigation of GaN thin films grown on nanostructured 3C-SiC/Si(001)
substrates}, author={Kemper, R.M. and Hiller, L. and Stauden, T. and Pezoldt,
J. and Meertens, D. and Luysberg, M. and Tillmann, K. and Riedl, Thomas and
As, Donald and Lindner, Jörg}, year={2012} }'
chicago: Kemper, R.M., L. Hiller, T. Stauden, J. Pezoldt, D. Meertens, M. Luysberg,
K. Tillmann, Thomas Riedl, Donald As, and Jörg Lindner. “TEM Investigation of
GaN Thin Films Grown on Nanostructured 3C-SiC/Si(001) Substrates,” 2012.
ieee: R. M. Kemper et al., “TEM investigation of GaN thin films grown on
nanostructured 3C-SiC/Si(001) substrates,” presented at the European Microscopy
Congress (EMC) 2012, Manchester (UK), 2012.
mla: Kemper, R. M., et al. TEM Investigation of GaN Thin Films Grown on Nanostructured
3C-SiC/Si(001) Substrates. 2012.
short: 'R.M. Kemper, L. Hiller, T. Stauden, J. Pezoldt, D. Meertens, M. Luysberg,
K. Tillmann, T. Riedl, D. As, J. Lindner, in: 2012.'
conference:
end_date: 2012-09-21
location: Manchester (UK)
name: European Microscopy Congress (EMC) 2012
start_date: 2012-09-16
date_created: 2018-08-27T12:14:30Z
date_updated: 2022-01-06T07:00:23Z
department:
- _id: '15'
- _id: '286'
language:
- iso: eng
status: public
title: TEM investigation of GaN thin films grown on nanostructured 3C-SiC/Si(001)
substrates
type: conference
user_id: '55706'
year: '2012'
...