---
_id: '65747'
abstract:
- lang: eng
text: 'In this work, we address the numerical identification of entanglement in
dynamical scenarios. To this end, we consider different programs based on the
restriction of the evolution to the set of separable (i.e., non-entangled) states,
together with the discretization of the space of variables for numerical computations.
As a first approach, we apply linear splitting methods to the restricted, continuous
equations of motion derived from variational principles. We utilize an exchange
interaction Hamiltonian to confirm that the numerical and analytical solutions
coincide in the limit of small time steps. The application to different Hamiltonians
shows the wide applicability of the method to detect dynamical entanglement. To
avoid the derivation of analytical solutions for complex dynamics, we consider
variational, numerical integration schemes, introducing a variational discretization
for Lagrangians linear in velocities. Here, we examine and compare two approaches:
one in which the system is discretized before the restriction is applied, and
another in which the restriction precedes the discretization. We find that the
"first-discretize-then-restrict" method becomes numerically unstable, already
for the example of an exchange-interaction Hamiltonian, which can be an important
consideration for the numerical analysis of constrained quantum dynamics. Thereby,
broadly applicable numerical tools, including their limitations, for studying
entanglement over time are established for assessing the entangling power of processes
that are used in quantum information theory.'
article_type: original
author:
- first_name: Christian
full_name: Offen, Christian
last_name: Offen
- first_name: Boris
full_name: Wembe, Boris
last_name: Wembe
- first_name: Laura
full_name: Ares, Laura
last_name: Ares
- first_name: Jan
full_name: Sperling, Jan
last_name: Sperling
- first_name: Sina
full_name: Ober-Blöbaum, Sina
last_name: Ober-Blöbaum
citation:
ama: 'Offen C, Wembe B, Ares L, Sperling J, Ober-Blöbaum S. Numerical approaches
to entangling dynamics from variational principles. Journal of Physics A: Mathematical
and Theoretical. Published online 2026. doi:10.1088/1751-8121/ae6d51'
apa: 'Offen, C., Wembe, B., Ares, L., Sperling, J., & Ober-Blöbaum, S. (2026).
Numerical approaches to entangling dynamics from variational principles. Journal
of Physics A: Mathematical and Theoretical. https://doi.org/10.1088/1751-8121/ae6d51'
bibtex: '@article{Offen_Wembe_Ares_Sperling_Ober-Blöbaum_2026, title={Numerical
approaches to entangling dynamics from variational principles}, DOI={10.1088/1751-8121/ae6d51},
journal={Journal of Physics A: Mathematical and Theoretical}, publisher={IOP Publishing},
author={Offen, Christian and Wembe, Boris and Ares, Laura and Sperling, Jan and
Ober-Blöbaum, Sina}, year={2026} }'
chicago: 'Offen, Christian, Boris Wembe, Laura Ares, Jan Sperling, and Sina Ober-Blöbaum.
“Numerical Approaches to Entangling Dynamics from Variational Principles.” Journal
of Physics A: Mathematical and Theoretical, 2026. https://doi.org/10.1088/1751-8121/ae6d51.'
ieee: 'C. Offen, B. Wembe, L. Ares, J. Sperling, and S. Ober-Blöbaum, “Numerical
approaches to entangling dynamics from variational principles,” Journal of
Physics A: Mathematical and Theoretical, 2026, doi: 10.1088/1751-8121/ae6d51.'
mla: 'Offen, Christian, et al. “Numerical Approaches to Entangling Dynamics from
Variational Principles.” Journal of Physics A: Mathematical and Theoretical,
IOP Publishing, 2026, doi:10.1088/1751-8121/ae6d51.'
short: 'C. Offen, B. Wembe, L. Ares, J. Sperling, S. Ober-Blöbaum, Journal of Physics
A: Mathematical and Theoretical (2026).'
date_created: 2026-06-01T09:41:19Z
date_updated: 2026-06-01T09:43:52Z
department:
- _id: '94'
doi: 10.1088/1751-8121/ae6d51
language:
- iso: eng
publication: 'Journal of Physics A: Mathematical and Theoretical'
publication_identifier:
issn:
- 1751-8113
- 1751-8121
publication_status: published
publisher: IOP Publishing
status: public
title: Numerical approaches to entangling dynamics from variational principles
type: journal_article
user_id: '95394'
year: '2026'
...
---
_id: '65740'
author:
- first_name: FRank Thomas
full_name: Brinkmann, FRank Thomas
last_name: Brinkmann
- first_name: Christoph
full_name: Jacke, Christoph
id: '20747'
last_name: Jacke
citation:
ama: 'Brinkmann FrT, Jacke C. Don’t touch me there/Touch my body. Zur Vielstimmigkeit
und Unstimmigkeit besungener (Be-)Rührungswünsche. In: Polke C, Seipel M-L,
Stahl M, eds. beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen
in der Popkultur. 1st ed. Springer Fachmedien Wiesbaden; 2026:45-77. doi:10.1007/978-3-658-49796-5'
apa: Brinkmann, Fr. T., & Jacke, C. (2026). Don’t touch me there/Touch my body.
Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche. In C.
Polke, M.-L. Seipel, & M. Stahl (Eds.), beRÜHRUNGen. Leibliches, seelisches
und existentielles Geschehen in der Popkultur (1st ed., pp. 45–77). Springer
Fachmedien Wiesbaden. https://doi.org/10.1007/978-3-658-49796-5
bibtex: '@inbook{Brinkmann_Jacke_2026, place={Wiesbaden}, edition={1}, title={Don’t
touch me there/Touch my body. Zur Vielstimmigkeit und Unstimmigkeit besungener
(Be-)Rührungswünsche}, DOI={10.1007/978-3-658-49796-5},
booktitle={beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in
der Popkultur}, publisher={Springer Fachmedien Wiesbaden}, author={Brinkmann,
FRank Thomas and Jacke, Christoph}, editor={Polke, Christian and Seipel, Maria-Louise
and Stahl, Mirjam}, year={2026}, pages={45–77} }'
chicago: 'Brinkmann, FRank Thomas, and Christoph Jacke. “Don’t touch me there/Touch
my body. Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche.”
In beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der
Popkultur, edited by Christian Polke, Maria-Louise Seipel, and Mirjam Stahl,
1st ed., 45–77. Wiesbaden: Springer Fachmedien Wiesbaden, 2026. https://doi.org/10.1007/978-3-658-49796-5.'
ieee: 'Fr. T. Brinkmann and C. Jacke, “Don’t touch me there/Touch my body. Zur Vielstimmigkeit
und Unstimmigkeit besungener (Be-)Rührungswünsche,” in beRÜHRUNGen. Leibliches,
seelisches und existentielles Geschehen in der Popkultur, 1st ed., C. Polke,
M.-L. Seipel, and M. Stahl, Eds. Wiesbaden: Springer Fachmedien Wiesbaden, 2026,
pp. 45–77.'
mla: Brinkmann, FRank Thomas, and Christoph Jacke. “Don’t touch me there/Touch my
body. Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche.”
beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur,
edited by Christian Polke et al., 1st ed., Springer Fachmedien Wiesbaden, 2026,
pp. 45–77, doi:10.1007/978-3-658-49796-5.
short: 'Fr.T. Brinkmann, C. Jacke, in: C. Polke, M.-L. Seipel, M. Stahl (Eds.),
beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur,
1st ed., Springer Fachmedien Wiesbaden, Wiesbaden, 2026, pp. 45–77.'
date_created: 2026-06-01T08:42:47Z
date_updated: 2026-06-01T10:58:48Z
department:
- _id: '607'
- _id: '817'
doi: 10.1007/978-3-658-49796-5
edition: '1'
editor:
- first_name: Christian
full_name: Polke, Christian
last_name: Polke
- first_name: Maria-Louise
full_name: Seipel, Maria-Louise
last_name: Seipel
- first_name: Mirjam
full_name: Stahl, Mirjam
last_name: Stahl
language:
- iso: ger
page: 45-77
place: Wiesbaden
publication: beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der
Popkultur
publication_identifier:
isbn:
- '9783658497958'
- '9783658497965'
issn:
- 2569-880X
- 2569-8818
publication_status: published
publisher: Springer Fachmedien Wiesbaden
status: public
title: Don’t touch me there/Touch my body. Zur Vielstimmigkeit und Unstimmigkeit besungener
(Be-)Rührungswünsche
type: book_chapter
user_id: '20747'
year: '2026'
...
---
_id: '65139'
author:
- first_name: Wael
full_name: Jabr, Wael
last_name: Jabr
- first_name: Dominik
full_name: Gutt, Dominik
last_name: Gutt
- first_name: Jürgen
full_name: Neumann, Jürgen
last_name: Neumann
- first_name: Dennis
full_name: Kundisch, Dennis
last_name: Kundisch
citation:
ama: Jabr W, Gutt D, Neumann J, Kundisch D. Updating at the Expense of Demand? The
Case of Platform Apps. Information Systems and e-Business Management. Published
online 2026. doi:10.1007/s1025-026-00723-y
apa: Jabr, W., Gutt, D., Neumann, J., & Kundisch, D. (2026). Updating at the
Expense of Demand? The Case of Platform Apps. Information Systems and E-Business
Management. https://doi.org/10.1007/s1025-026-00723-y
bibtex: '@article{Jabr_Gutt_Neumann_Kundisch_2026, title={Updating at the Expense
of Demand? The Case of Platform Apps}, DOI={10.1007/s1025-026-00723-y},
journal={Information Systems and e-Business Management}, publisher={Springer},
author={Jabr, Wael and Gutt, Dominik and Neumann, Jürgen and Kundisch, Dennis},
year={2026} }'
chicago: Jabr, Wael, Dominik Gutt, Jürgen Neumann, and Dennis Kundisch. “Updating
at the Expense of Demand? The Case of Platform Apps.” Information Systems and
E-Business Management, 2026. https://doi.org/10.1007/s1025-026-00723-y.
ieee: 'W. Jabr, D. Gutt, J. Neumann, and D. Kundisch, “Updating at the Expense of
Demand? The Case of Platform Apps,” Information Systems and e-Business Management,
2026, doi: 10.1007/s1025-026-00723-y.'
mla: Jabr, Wael, et al. “Updating at the Expense of Demand? The Case of Platform
Apps.” Information Systems and E-Business Management, Springer, 2026, doi:10.1007/s1025-026-00723-y.
short: W. Jabr, D. Gutt, J. Neumann, D. Kundisch, Information Systems and E-Business
Management (2026).
date_created: 2026-03-26T10:59:29Z
date_updated: 2026-06-01T13:24:22Z
department:
- _id: '276'
doi: 10.1007/s1025-026-00723-y
language:
- iso: eng
publication: Information Systems and e-Business Management
publication_status: published
publisher: Springer
related_material:
link:
- relation: confirmation
url: https://link.springer.com/article/10.1007/s10257-026-00723-y?utm_source=rct_congratemailt&utm_medium=email&utm_campaign=oa_20260531&utm_content=10.1007/s10257-026-00723-y
status: public
title: Updating at the Expense of Demand? The Case of Platform Apps
type: journal_article
user_id: '16205'
year: '2026'
...
---
_id: '65451'
author:
- first_name: Christoph
full_name: Ksouri-Gerwien, Christoph
last_name: Ksouri-Gerwien
- first_name: Christian
full_name: Vorbohle, Christian
id: '29951'
last_name: Vorbohle
citation:
ama: 'Ksouri-Gerwien C, Vorbohle C. Business Model Prototyping and Evaluation from
an Ecosystem Perspective: An Actor-based Modeling Framework for Using System Dynamics.
Information Systems and e-Business Management. Published online 2026.'
apa: 'Ksouri-Gerwien, C., & Vorbohle, C. (2026). Business Model Prototyping
and Evaluation from an Ecosystem Perspective: An Actor-based Modeling Framework
for Using System Dynamics. Information Systems and E-Business Management.'
bibtex: '@article{Ksouri-Gerwien_Vorbohle_2026, title={Business Model Prototyping
and Evaluation from an Ecosystem Perspective: An Actor-based Modeling Framework
for Using System Dynamics}, journal={Information Systems and e-Business Management},
author={Ksouri-Gerwien, Christoph and Vorbohle, Christian}, year={2026} }'
chicago: 'Ksouri-Gerwien, Christoph, and Christian Vorbohle. “Business Model Prototyping
and Evaluation from an Ecosystem Perspective: An Actor-Based Modeling Framework
for Using System Dynamics.” Information Systems and E-Business Management,
2026.'
ieee: 'C. Ksouri-Gerwien and C. Vorbohle, “Business Model Prototyping and Evaluation
from an Ecosystem Perspective: An Actor-based Modeling Framework for Using System
Dynamics,” Information Systems and e-Business Management, 2026.'
mla: 'Ksouri-Gerwien, Christoph, and Christian Vorbohle. “Business Model Prototyping
and Evaluation from an Ecosystem Perspective: An Actor-Based Modeling Framework
for Using System Dynamics.” Information Systems and E-Business Management,
2026.'
short: C. Ksouri-Gerwien, C. Vorbohle, Information Systems and E-Business Management
(2026).
date_created: 2026-04-15T13:13:12Z
date_updated: 2026-06-01T13:21:39Z
department:
- _id: '276'
language:
- iso: eng
publication: Information Systems and e-Business Management
publication_status: published
status: public
title: 'Business Model Prototyping and Evaluation from an Ecosystem Perspective: An
Actor-based Modeling Framework for Using System Dynamics'
type: journal_article
user_id: '16205'
year: '2026'
...
---
_id: '65749'
abstract:
- lang: eng
text: "Abstract\r\n Phase noise
is one of the most important properties of oscillators that limit the capacity
of high-frequency communication systems. In heterodyne conversion schemes, the
phase noise of the local oscillator will be multiplied and up-converted to the
transmission channel. Therefore, accurate characterization of the oscillators
is highly important for the design of THz communication systems. Especially when
it comes to the characterization of high-quality oscillators with extremely low
phase noise, traceable measurement methods are not available.\r\n In
this chapter, the mathematical model and definition of the amplitude noise (AM
noise) and phase noise (PM noise) are given. Different phase noise definition
standards such as single sideband (SSB) and double sideband will also be provided.
Phase noise measurement techniques such as frequency discrimination and phase-locked
loop (PLL) technique will be discussed. The standard two-channel cross correlation
for statistical analysis of phase noise at levels below the detection limit of
the phase noise receiver will be explained with mathematical formalism."
author:
- first_name: Meysam
full_name: Bahmanian, Meysam
id: '69233'
last_name: Bahmanian
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- first_name: Nora
full_name: Meyne, Nora
last_name: Meyne
- first_name: Thomas
full_name: Kleine-Ostmann, Thomas
last_name: Kleine-Ostmann
citation:
ama: 'Bahmanian M, Scheytt JC, Meyne N, Kleine-Ostmann T. Phase Noise Metrology.
In: Springer Series in Optical Sciences. Springer Nature Switzerland; 2026.
doi:10.1007/978-3-032-01986-8_4'
apa: Bahmanian, M., Scheytt, J. C., Meyne, N., & Kleine-Ostmann, T. (2026).
Phase Noise Metrology. In Springer Series in Optical Sciences. Springer
Nature Switzerland. https://doi.org/10.1007/978-3-032-01986-8_4
bibtex: '@inbook{Bahmanian_Scheytt_Meyne_Kleine-Ostmann_2026, place={Cham}, title={Phase
Noise Metrology}, DOI={10.1007/978-3-032-01986-8_4},
booktitle={Springer Series in Optical Sciences}, publisher={Springer Nature Switzerland},
author={Bahmanian, Meysam and Scheytt, J. Christoph and Meyne, Nora and Kleine-Ostmann,
Thomas}, year={2026} }'
chicago: 'Bahmanian, Meysam, J. Christoph Scheytt, Nora Meyne, and Thomas Kleine-Ostmann.
“Phase Noise Metrology.” In Springer Series in Optical Sciences. Cham:
Springer Nature Switzerland, 2026. https://doi.org/10.1007/978-3-032-01986-8_4.'
ieee: 'M. Bahmanian, J. C. Scheytt, N. Meyne, and T. Kleine-Ostmann, “Phase Noise
Metrology,” in Springer Series in Optical Sciences, Cham: Springer Nature
Switzerland, 2026.'
mla: Bahmanian, Meysam, et al. “Phase Noise Metrology.” Springer Series in Optical
Sciences, Springer Nature Switzerland, 2026, doi:10.1007/978-3-032-01986-8_4.
short: 'M. Bahmanian, J.C. Scheytt, N. Meyne, T. Kleine-Ostmann, in: Springer Series
in Optical Sciences, Springer Nature Switzerland, Cham, 2026.'
conference:
end_date: 2026-05-01
start_date: 2026-05-01
date_created: 2026-06-01T12:17:34Z
date_updated: 2026-06-02T09:34:24Z
department:
- _id: '58'
- _id: '623'
doi: 10.1007/978-3-032-01986-8_4
language:
- iso: eng
place: Cham
publication: Springer Series in Optical Sciences
publication_identifier:
isbn:
- '9783032019851'
- '9783032019868'
issn:
- 0342-4111
- 1556-1534
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Phase Noise Metrology
type: book_chapter
user_id: '13256'
year: '2026'
...
---
_id: '65754'
abstract:
- lang: eng
text: "ABSTRACT\r\n \r\n The
integration of heat pumps offers a promising route for electrifying chemical processes
and reducing CO\r\n 2\r\n emissions.
Their feasibility strongly depends on the temperature levels and the quantities
of available heat sources and sinks, which can be influenced by adjusting process
operating parameters to enhance integration potential. The number and quality
of these sources and sinks also determine suitable heat pump configurations and
therefore the technical and economic viability of implementation. In addition,
refrigerant selection is a critical factor, as it is restricted by regulations
such as the F‐Gas Regulation. This study investigates how different operating
parameters affect the integration potential of various heat pump configurations
in a CO\r\n 2\r\n absorption
process using MEA as solvent. Furthermore, economic evaluations are carried out
considering different electricity price scenarios and allowable refrigerants.\r\n
\ "
article_number: e70131
author:
- first_name: Johannes
full_name: Wloch, Johannes
last_name: Wloch
- first_name: Marcus
full_name: Grünewald, Marcus
last_name: Grünewald
- first_name: Julia
full_name: Riese, Julia
id: '101499'
last_name: Riese
orcid: 0000-0002-3053-0534
citation:
ama: Wloch J, Grünewald M, Riese J. Matching Heat Pump Configurations and Process
Parameters for Cost‐Minimal Heat‐Integrated CO2-Capturing Process.
Chemie Ingenieur Technik. Published online 2026. doi:10.1002/cite.70131
apa: Wloch, J., Grünewald, M., & Riese, J. (2026). Matching Heat Pump Configurations
and Process Parameters for Cost‐Minimal Heat‐Integrated CO2-Capturing
Process. Chemie Ingenieur Technik, Article e70131. https://doi.org/10.1002/cite.70131
bibtex: '@article{Wloch_Grünewald_Riese_2026, title={Matching Heat Pump Configurations
and Process Parameters for Cost‐Minimal Heat‐Integrated CO2-Capturing
Process}, DOI={10.1002/cite.70131},
number={e70131}, journal={Chemie Ingenieur Technik}, publisher={Wiley}, author={Wloch,
Johannes and Grünewald, Marcus and Riese, Julia}, year={2026} }'
chicago: Wloch, Johannes, Marcus Grünewald, and Julia Riese. “Matching Heat Pump
Configurations and Process Parameters for Cost‐Minimal Heat‐Integrated CO2-Capturing
Process.” Chemie Ingenieur Technik, 2026. https://doi.org/10.1002/cite.70131.
ieee: 'J. Wloch, M. Grünewald, and J. Riese, “Matching Heat Pump Configurations
and Process Parameters for Cost‐Minimal Heat‐Integrated CO2-Capturing
Process,” Chemie Ingenieur Technik, Art. no. e70131, 2026, doi: 10.1002/cite.70131.'
mla: Wloch, Johannes, et al. “Matching Heat Pump Configurations and Process Parameters
for Cost‐Minimal Heat‐Integrated CO2-Capturing Process.” Chemie
Ingenieur Technik, e70131, Wiley, 2026, doi:10.1002/cite.70131.
short: J. Wloch, M. Grünewald, J. Riese, Chemie Ingenieur Technik (2026).
date_created: 2026-06-02T09:59:46Z
date_updated: 2026-06-02T10:03:57Z
department:
- _id: '831'
doi: 10.1002/cite.70131
language:
- iso: eng
publication: Chemie Ingenieur Technik
publication_identifier:
issn:
- 0009-286X
- 1522-2640
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Matching Heat Pump Configurations and Process Parameters for Cost‐Minimal Heat‐Integrated
CO2-Capturing Process
type: journal_article
user_id: '101499'
year: '2026'
...
---
_id: '65748'
abstract:
- lang: eng
text: "Abstract\r\n In this chapter,
the precision of optical clocks based on mode-locked laser (MLL) is compared with
more conventional types of clock sources. It is shown that the phase noise of
the optical pulse train from the MLL can be better than other types of clock sources
by orders of magnitude. Then, an abstract representation of frequency synthesizer
is demonstrated. Different techniques for RF generation using MLL are shown, and
their pros and cons are discussed. Finally, a comparison of all these techniques
is made with respect to their phase noise and capability to generate RF signal
with different frequencies for different applications."
author:
- first_name: Meysam
full_name: Bahmanian, Meysam
id: '69233'
last_name: Bahmanian
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: 'Bahmanian M, Scheytt JC. Frequency Synthesis Based on MLLs. In: Springer
Series in Optical Sciences. Springer Nature Switzerland; 2026. doi:10.1007/978-3-032-01986-8_28'
apa: Bahmanian, M., & Scheytt, J. C. (2026). Frequency Synthesis Based on MLLs.
In Springer Series in Optical Sciences. Springer Nature Switzerland. https://doi.org/10.1007/978-3-032-01986-8_28
bibtex: '@inbook{Bahmanian_Scheytt_2026, place={Cham}, title={Frequency Synthesis
Based on MLLs}, DOI={10.1007/978-3-032-01986-8_28},
booktitle={Springer Series in Optical Sciences}, publisher={Springer Nature Switzerland},
author={Bahmanian, Meysam and Scheytt, J. Christoph}, year={2026} }'
chicago: 'Bahmanian, Meysam, and J. Christoph Scheytt. “Frequency Synthesis Based
on MLLs.” In Springer Series in Optical Sciences. Cham: Springer Nature
Switzerland, 2026. https://doi.org/10.1007/978-3-032-01986-8_28.'
ieee: 'M. Bahmanian and J. C. Scheytt, “Frequency Synthesis Based on MLLs,” in Springer
Series in Optical Sciences, Cham: Springer Nature Switzerland, 2026.'
mla: Bahmanian, Meysam, and J. Christoph Scheytt. “Frequency Synthesis Based on
MLLs.” Springer Series in Optical Sciences, Springer Nature Switzerland,
2026, doi:10.1007/978-3-032-01986-8_28.
short: 'M. Bahmanian, J.C. Scheytt, in: Springer Series in Optical Sciences, Springer
Nature Switzerland, Cham, 2026.'
conference:
end_date: 2026-05-01
start_date: 2026-05-01
date_created: 2026-06-01T12:16:46Z
date_updated: 2026-06-02T09:34:54Z
department:
- _id: '58'
- _id: '623'
doi: 10.1007/978-3-032-01986-8_28
language:
- iso: eng
place: Cham
publication: Springer Series in Optical Sciences
publication_identifier:
isbn:
- '9783032019851'
- '9783032019868'
issn:
- 0342-4111
- 1556-1534
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Frequency Synthesis Based on MLLs
type: book_chapter
user_id: '13256'
year: '2026'
...
---
_id: '65755'
author:
- first_name: Jan Luca
full_name: Twardzik, Jan Luca
last_name: Twardzik
- first_name: Lynn
full_name: Humpert, Lynn
last_name: Humpert
- first_name: Gerrit
full_name: Cichon, Gerrit
last_name: Cichon
- first_name: Roman
full_name: Dumitrescu, Roman
id: '16190'
last_name: Dumitrescu
citation:
ama: 'Twardzik JL, Humpert L, Cichon G, Dumitrescu R. Knowledge Gaps in Circular
Product Development: A Systematic Literature Review of the Manufacturing Industry.
In: Lecture Notes in Mechanical Engineering. Springer Nature Switzerland;
2026. doi:10.1007/978-3-032-21157-6_39'
apa: 'Twardzik, J. L., Humpert, L., Cichon, G., & Dumitrescu, R. (2026). Knowledge
Gaps in Circular Product Development: A Systematic Literature Review of the Manufacturing
Industry. In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland.
https://doi.org/10.1007/978-3-032-21157-6_39'
bibtex: '@inbook{Twardzik_Humpert_Cichon_Dumitrescu_2026, place={Cham}, title={Knowledge
Gaps in Circular Product Development: A Systematic Literature Review of the Manufacturing
Industry}, DOI={10.1007/978-3-032-21157-6_39},
booktitle={Lecture Notes in Mechanical Engineering}, publisher={Springer Nature
Switzerland}, author={Twardzik, Jan Luca and Humpert, Lynn and Cichon, Gerrit
and Dumitrescu, Roman}, year={2026} }'
chicago: 'Twardzik, Jan Luca, Lynn Humpert, Gerrit Cichon, and Roman Dumitrescu.
“Knowledge Gaps in Circular Product Development: A Systematic Literature Review
of the Manufacturing Industry.” In Lecture Notes in Mechanical Engineering.
Cham: Springer Nature Switzerland, 2026. https://doi.org/10.1007/978-3-032-21157-6_39.'
ieee: 'J. L. Twardzik, L. Humpert, G. Cichon, and R. Dumitrescu, “Knowledge Gaps
in Circular Product Development: A Systematic Literature Review of the Manufacturing
Industry,” in Lecture Notes in Mechanical Engineering, Cham: Springer Nature
Switzerland, 2026.'
mla: 'Twardzik, Jan Luca, et al. “Knowledge Gaps in Circular Product Development:
A Systematic Literature Review of the Manufacturing Industry.” Lecture Notes
in Mechanical Engineering, Springer Nature Switzerland, 2026, doi:10.1007/978-3-032-21157-6_39.'
short: 'J.L. Twardzik, L. Humpert, G. Cichon, R. Dumitrescu, in: Lecture Notes in
Mechanical Engineering, Springer Nature Switzerland, Cham, 2026.'
date_created: 2026-06-02T11:46:11Z
date_updated: 2026-06-02T11:50:46Z
department:
- _id: '563'
doi: 10.1007/978-3-032-21157-6_39
language:
- iso: eng
place: Cham
publication: Lecture Notes in Mechanical Engineering
publication_identifier:
isbn:
- '9783032211569'
- '9783032211576'
issn:
- 2195-4356
- 2195-4364
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: 'Knowledge Gaps in Circular Product Development: A Systematic Literature Review
of the Manufacturing Industry'
type: book_chapter
user_id: '15782'
year: '2026'
...
---
_id: '63615'
author:
- first_name: Johannes
full_name: Meyer-Hamme, Johannes
id: '49623'
last_name: Meyer-Hamme
- first_name: Olaf
full_name: Hartung, Olaf
id: '79451'
last_name: Hartung
orcid: 0009-0007-8673-250X
citation:
ama: 'Meyer-Hamme J, Hartung O. Historisches Lernen. In: Barricelli M, Lücke M,
eds. Handbuch Praxis des Geschichtsunterrichts. 2nd ed. Wochenschau Verlag;
2026.'
apa: Meyer-Hamme, J., & Hartung, O. (2026). Historisches Lernen. In M. Barricelli
& M. Lücke (Eds.), Handbuch Praxis des Geschichtsunterrichts (2nd ed.).
Wochenschau Verlag.
bibtex: '@inbook{Meyer-Hamme_Hartung_2026, place={Frankfurt/Main}, edition={2},
title={Historisches Lernen}, booktitle={Handbuch Praxis des Geschichtsunterrichts},
publisher={Wochenschau Verlag}, author={Meyer-Hamme, Johannes and Hartung, Olaf},
editor={Barricelli, Michele and Lücke, Martin}, year={2026} }'
chicago: 'Meyer-Hamme, Johannes, and Olaf Hartung. “Historisches Lernen.” In Handbuch
Praxis des Geschichtsunterrichts, edited by Michele Barricelli and Martin
Lücke, 2nd ed. Frankfurt/Main: Wochenschau Verlag, 2026.'
ieee: 'J. Meyer-Hamme and O. Hartung, “Historisches Lernen,” in Handbuch Praxis
des Geschichtsunterrichts, 2nd ed., M. Barricelli and M. Lücke, Eds. Frankfurt/Main:
Wochenschau Verlag, 2026.'
mla: Meyer-Hamme, Johannes, and Olaf Hartung. “Historisches Lernen.” Handbuch
Praxis des Geschichtsunterrichts, edited by Michele Barricelli and Martin
Lücke, 2nd ed., Wochenschau Verlag, 2026.
short: 'J. Meyer-Hamme, O. Hartung, in: M. Barricelli, M. Lücke (Eds.), Handbuch
Praxis des Geschichtsunterrichts, 2nd ed., Wochenschau Verlag, Frankfurt/Main,
2026.'
date_created: 2026-01-15T08:35:25Z
date_updated: 2026-06-02T10:34:52Z
department:
- _id: '6'
- _id: '444'
edition: '2'
editor:
- first_name: Michele
full_name: Barricelli, Michele
last_name: Barricelli
- first_name: Martin
full_name: Lücke, Martin
last_name: Lücke
language:
- iso: ger
place: Frankfurt/Main
publication: Handbuch Praxis des Geschichtsunterrichts
publication_identifier:
isbn:
- 978-3-7344-1775-7
issn:
- 1435-7658
publication_status: published
publisher: Wochenschau Verlag
quality_controlled: '1'
status: public
title: Historisches Lernen
type: book_chapter
user_id: '79451'
year: '2026'
...
---
_id: '65757'
abstract:
- lang: eng
text: Electrifying the heating sector is essential for achieving global climate
targets like the Paris Agreement’s 1.5 °C goal. In Germany, where 80 % of household
energy goes to space heating and hot water, shifting to low-carbon solutions is
crucial. Fossil-fuelled district heating networks can incorporate renewable energy
via heat pumps, improving efficiency. Although heat pump design typically favours
minimal temperature lifts, higher lifts can be economically viable with low electricity
prices and abundant renewables. Adding thermal energy storage boosts operational
flexibility. This study explores a flexible heat pump operation incorporating
part load behaviour with a thermal energy storage in a German city’s district
heating system to minimise costs and carbon dioxide emissions. Using a mixed-integer
linear programming model, it examines the impact of temperature adjustments and
storage on system efficiency. The results show that the integration of a heat
pump in a district heating system reduces operating costs. Compared to a supply
without a heat pump, with levelised cost of heating of 9.98 cent/kWhth and a fixed
operating mode with costs between 9.96 cent/kWhth and 11.49 cent/kWhth, the flexible
use results in lowest costs of 9.85 cent/kWhth, while also reducing overall CO2
emissions. Using a full factorial sensitivity analysis, the levelised cost of
heating ranged between 9.15 cent/kWhth in the best case and 10.37 cent/kWhth in
the worst case for the selected configuration.
article_number: '121714'
article_type: original
author:
- first_name: Henning Christoph
full_name: Rahlf, Henning Christoph
id: '56955'
last_name: Rahlf
orcid: 0009-0006-8106-2132
- first_name: Denis
full_name: Divkovic, Denis
id: '89059'
last_name: Divkovic
- first_name: Lukas
full_name: Knorr, Lukas
id: '90391'
last_name: Knorr
orcid: 0009-0005-4727-7511
- first_name: Florian
full_name: Schlosser, Florian
id: '88614'
last_name: Schlosser
- first_name: Henning
full_name: Meschede, Henning
id: '86954'
last_name: Meschede
orcid: 0000-0002-1538-089X
citation:
ama: Rahlf HC, Divkovic D, Knorr L, Schlosser F, Meschede H. Flexible operation
strategies for heat pumps in district heating systems using dynamic electricity
prices. Energy Conversion and Management. 2026;364. doi:10.1016/j.enconman.2026.121714
apa: Rahlf, H. C., Divkovic, D., Knorr, L., Schlosser, F., & Meschede, H. (2026).
Flexible operation strategies for heat pumps in district heating systems using
dynamic electricity prices. Energy Conversion and Management, 364,
Article 121714. https://doi.org/10.1016/j.enconman.2026.121714
bibtex: '@article{Rahlf_Divkovic_Knorr_Schlosser_Meschede_2026, title={Flexible
operation strategies for heat pumps in district heating systems using dynamic
electricity prices}, volume={364}, DOI={10.1016/j.enconman.2026.121714},
number={121714}, journal={Energy Conversion and Management}, publisher={Elsevier
BV}, author={Rahlf, Henning Christoph and Divkovic, Denis and Knorr, Lukas and
Schlosser, Florian and Meschede, Henning}, year={2026} }'
chicago: Rahlf, Henning Christoph, Denis Divkovic, Lukas Knorr, Florian Schlosser,
and Henning Meschede. “Flexible Operation Strategies for Heat Pumps in District
Heating Systems Using Dynamic Electricity Prices.” Energy Conversion and Management
364 (2026). https://doi.org/10.1016/j.enconman.2026.121714.
ieee: 'H. C. Rahlf, D. Divkovic, L. Knorr, F. Schlosser, and H. Meschede, “Flexible
operation strategies for heat pumps in district heating systems using dynamic
electricity prices,” Energy Conversion and Management, vol. 364, Art. no.
121714, 2026, doi: 10.1016/j.enconman.2026.121714.'
mla: Rahlf, Henning Christoph, et al. “Flexible Operation Strategies for Heat Pumps
in District Heating Systems Using Dynamic Electricity Prices.” Energy Conversion
and Management, vol. 364, 121714, Elsevier BV, 2026, doi:10.1016/j.enconman.2026.121714.
short: H.C. Rahlf, D. Divkovic, L. Knorr, F. Schlosser, H. Meschede, Energy Conversion
and Management 364 (2026).
date_created: 2026-06-03T06:34:27Z
date_updated: 2026-06-03T06:44:31Z
department:
- _id: '644'
- _id: '534'
doi: 10.1016/j.enconman.2026.121714
intvolume: ' 364'
keyword:
- Heat transition
- Optimisation
- Temperature flexibility
- Decarbonisation
- Multi energy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S0196890426006837
oa: '1'
project:
- _id: '1495'
name: FlexLabQuartier
publication: Energy Conversion and Management
publication_identifier:
issn:
- 0196-8904
publication_status: published
publisher: Elsevier BV
status: public
title: Flexible operation strategies for heat pumps in district heating systems using
dynamic electricity prices
type: journal_article
user_id: '56955'
volume: 364
year: '2026'
...
---
_id: '63838'
abstract:
- lang: eng
text: "Industrial electrification is increasing to reduce fossil fuel dependence,
alongside a growing share of volatile renewables.\r\nA secure and reliable energy
supply is crucial for industry, leading to a shift from centralised to decentralised
grid structures.\r\nDC microgrids becoming increasingly popular in industry, since
they enable energy recuperation from braking, reduce components and cables, and
integrate storage and local generation to manage supply interruptions or peak
loads.\r\nEVs add further synergies by serving as mobile storage units, helping
to store and redistribute locally generated renewable energy.\r\nThis paper analyses
how EV integration in droop-controlled DC grids can contribute to a more stable,
low-emission and peak-reduced load profile to the supply grid through load shifting
and bridge interruptions.\r\nA droop-controlled DC grid model has been developed,
incorporating an EV charging park based on probability functions.\r\nScalable
scenarios allow for diverse condition analysis using an energy management system
that utilises fuzzy logic and sequential MILP optimisation.\r\nIt has been shown
that a 7% improvement of coefficient represented grid-serving behaviour is possible
by load shifting.\r\nIt has also been demonstrated that an optimised EMS can reduce
the demand-based CO2 emissions by 41kg for a representative day compared to a
fuzzy logic EMS.\r\nAt the same time peak load is decreased yielding a more constant
residual load.\r\nThese results highlight the potential of a controlled bidirectional
charging infrastructure in DC grids and underscore the need to explicitly consider
charging processes to ensure a residual load as constant as possible."
article_number: '100227'
article_type: original
author:
- first_name: Henning Christoph
full_name: Rahlf, Henning Christoph
id: '56955'
last_name: Rahlf
orcid: 0009-0006-8106-2132
- first_name: Lukas
full_name: Knorr, Lukas
id: '90391'
last_name: Knorr
orcid: 0009-0005-4727-7511
- first_name: Simon
full_name: Althoff, Simon
last_name: Althoff
- first_name: Henning
full_name: Meschede, Henning
id: '86954'
last_name: Meschede
orcid: 0000-0002-1538-089X
citation:
ama: Rahlf HC, Knorr L, Althoff S, Meschede H. Analysis of bidirectional EV charging
infrastructures within industrial DC grids. Smart Energy. Published online
2026. doi:10.1016/j.segy.2026.100227
apa: Rahlf, H. C., Knorr, L., Althoff, S., & Meschede, H. (2026). Analysis of
bidirectional EV charging infrastructures within industrial DC grids. Smart
Energy, Article 100227. https://doi.org/10.1016/j.segy.2026.100227
bibtex: '@article{Rahlf_Knorr_Althoff_Meschede_2026, title={Analysis of bidirectional
EV charging infrastructures within industrial DC grids}, DOI={10.1016/j.segy.2026.100227},
number={100227}, journal={Smart Energy}, publisher={Elsevier BV}, author={Rahlf,
Henning Christoph and Knorr, Lukas and Althoff, Simon and Meschede, Henning},
year={2026} }'
chicago: Rahlf, Henning Christoph, Lukas Knorr, Simon Althoff, and Henning Meschede.
“Analysis of Bidirectional EV Charging Infrastructures within Industrial DC Grids.”
Smart Energy, 2026. https://doi.org/10.1016/j.segy.2026.100227.
ieee: 'H. C. Rahlf, L. Knorr, S. Althoff, and H. Meschede, “Analysis of bidirectional
EV charging infrastructures within industrial DC grids,” Smart Energy,
Art. no. 100227, 2026, doi: 10.1016/j.segy.2026.100227.'
mla: Rahlf, Henning Christoph, et al. “Analysis of Bidirectional EV Charging Infrastructures
within Industrial DC Grids.” Smart Energy, 100227, Elsevier BV, 2026, doi:10.1016/j.segy.2026.100227.
short: H.C. Rahlf, L. Knorr, S. Althoff, H. Meschede, Smart Energy (2026).
date_created: 2026-02-02T14:45:17Z
date_updated: 2026-06-03T06:42:54Z
department:
- _id: '644'
doi: 10.1016/j.segy.2026.100227
keyword:
- DC-grid
- Droop control
- Grid-serving behaviour
- Grid stability
- Bidirectional charging
- Sequential decision
- MILP optimisation
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S266695522600002X
oa: '1'
publication: Smart Energy
publication_identifier:
issn:
- 2666-9552
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Analysis of bidirectional EV charging infrastructures within industrial DC
grids
type: journal_article
user_id: '56955'
year: '2026'
...
---
_id: '65756'
author:
- first_name: Talea Davina
full_name: Hellweg, Talea Davina
id: '45592'
last_name: Hellweg
orcid: 0000-0002-3868-6568
- first_name: Luc Dana
full_name: Sandfort, Luc Dana
id: '44544'
last_name: Sandfort
- first_name: Malte Fabian
full_name: Reineke, Malte Fabian
id: '60641'
last_name: Reineke
- first_name: Christian
full_name: Bartelheimer, Christian
id: '49160'
last_name: Bartelheimer
- first_name: Daniel
full_name: Beverungen, Daniel
id: '59677'
last_name: Beverungen
citation:
ama: 'Hellweg TD, Sandfort LD, Reineke MF, Bartelheimer C, Beverungen D. Temporary
Fix Or Process Innovation? A Fuzzy-Set Qualitative Comparative Analysis Of Workarounds.
In: European Conference on Information Systems (ECIS) 2026 Proceedings.
; 2026.'
apa: Hellweg, T. D., Sandfort, L. D., Reineke, M. F., Bartelheimer, C., & Beverungen,
D. (2026). Temporary Fix Or Process Innovation? A Fuzzy-Set Qualitative Comparative
Analysis Of Workarounds. European Conference on Information Systems (ECIS)
2026 Proceedings, 6.
bibtex: '@inproceedings{Hellweg_Sandfort_Reineke_Bartelheimer_Beverungen_2026, title={Temporary
Fix Or Process Innovation? A Fuzzy-Set Qualitative Comparative Analysis Of Workarounds},
number={6}, booktitle={European Conference on Information Systems (ECIS) 2026
Proceedings}, author={Hellweg, Talea Davina and Sandfort, Luc Dana and Reineke,
Malte Fabian and Bartelheimer, Christian and Beverungen, Daniel}, year={2026}
}'
chicago: Hellweg, Talea Davina, Luc Dana Sandfort, Malte Fabian Reineke, Christian
Bartelheimer, and Daniel Beverungen. “Temporary Fix Or Process Innovation? A Fuzzy-Set
Qualitative Comparative Analysis Of Workarounds.” In European Conference on
Information Systems (ECIS) 2026 Proceedings, 2026.
ieee: T. D. Hellweg, L. D. Sandfort, M. F. Reineke, C. Bartelheimer, and D. Beverungen,
“Temporary Fix Or Process Innovation? A Fuzzy-Set Qualitative Comparative Analysis
Of Workarounds,” in European Conference on Information Systems (ECIS) 2026
Proceedings, 2026, no. 6.
mla: Hellweg, Talea Davina, et al. “Temporary Fix Or Process Innovation? A Fuzzy-Set
Qualitative Comparative Analysis Of Workarounds.” European Conference on Information
Systems (ECIS) 2026 Proceedings, no. 6, 2026.
short: 'T.D. Hellweg, L.D. Sandfort, M.F. Reineke, C. Bartelheimer, D. Beverungen,
in: European Conference on Information Systems (ECIS) 2026 Proceedings, 2026.'
date_created: 2026-06-02T12:01:04Z
date_updated: 2026-06-02T12:06:09Z
department:
- _id: '195'
issue: '6'
language:
- iso: eng
main_file_link:
- url: https://aisel.aisnet.org/ecis2026/bpm/bpm/6
publication: European Conference on Information Systems (ECIS) 2026 Proceedings
status: public
title: Temporary Fix Or Process Innovation? A Fuzzy-Set Qualitative Comparative Analysis
Of Workarounds
type: conference
user_id: '60641'
year: '2026'
...
---
_id: '61943'
author:
- first_name: Christoph
full_name: Bürgel, Christoph
id: '58448'
last_name: Bürgel
- first_name: 'Jürgen '
full_name: 'Mertens, Jürgen '
last_name: Mertens
citation:
ama: 'Bürgel C, Mertens J. Foreign Language Professional Communicative Competence
as a Component of Language Teachers’ Professional Competence (n.d.). In: Pustka
E, Reimann D, eds. Manual of Pedagogical Linguistics.'
apa: Bürgel, C., & Mertens, J. (n.d.). Foreign Language Professional Communicative
Competence as a Component of Language Teachers’ Professional Competence (n.d.).
In E. Pustka & D. Reimann (Eds.), Manual of Pedagogical Linguistics.
bibtex: '@inbook{Bürgel_Mertens, title={Foreign Language Professional Communicative
Competence as a Component of Language Teachers’ Professional Competence (n.d.).},
booktitle={Manual of Pedagogical Linguistics}, author={Bürgel, Christoph and Mertens,
Jürgen }, editor={Pustka, Elisa and Reimann, Daniel} }'
chicago: Bürgel, Christoph, and Jürgen Mertens. “Foreign Language Professional
Communicative Competence as a Component of Language Teachers’ Professional Competence
(n.d.).” In Manual of Pedagogical Linguistics, edited by Elisa Pustka and
Daniel Reimann, n.d.
ieee: C. Bürgel and J. Mertens, “Foreign Language Professional Communicative Competence
as a Component of Language Teachers’ Professional Competence (n.d.).,” in Manual
of Pedagogical Linguistics, E. Pustka and D. Reimann, Eds. .
mla: Bürgel, Christoph, and Jürgen Mertens. “Foreign Language Professional Communicative
Competence as a Component of Language Teachers’ Professional Competence (n.d.).”
Manual of Pedagogical Linguistics, edited by Elisa Pustka and Daniel Reimann.
short: 'C. Bürgel, J. Mertens, in: E. Pustka, D. Reimann (Eds.), Manual of Pedagogical
Linguistics, n.d.'
date_created: 2025-10-23T13:20:14Z
date_updated: 2026-06-02T12:30:40Z
editor:
- first_name: Elisa
full_name: Pustka, Elisa
last_name: Pustka
- first_name: Daniel
full_name: Reimann, Daniel
last_name: Reimann
language:
- iso: eng
publication: Manual of Pedagogical Linguistics
publication_status: inpress
status: public
title: Foreign Language Professional Communicative Competence as a Component of Language
Teachers’ Professional Competence (n.d.).
type: book_chapter
user_id: '43976'
year: '2026'
...
---
_id: '65763'
author:
- first_name: Sandra
full_name: Ballweg, Sandra
id: '94512'
last_name: Ballweg
citation:
ama: 'Ballweg S. Portfolio im Kontext von Mehrsprachigkeit. In: Fäcke C, Plikat
J, eds. Handbuch Mehrsprachigkeits- Und Mehrkulturalitätsdidaktik. 2nd
ed. Narr Francke Attempto; 2026:149–151.'
apa: Ballweg, S. (2026). Portfolio im Kontext von Mehrsprachigkeit. In C. Fäcke
& J. Plikat (Eds.), Handbuch Mehrsprachigkeits- und Mehrkulturalitätsdidaktik
(2nd ed., pp. 149–151). Narr Francke Attempto.
bibtex: '@inbook{Ballweg_2026, place={Tübingen}, edition={2}, title={Portfolio im
Kontext von Mehrsprachigkeit}, booktitle={Handbuch Mehrsprachigkeits- und Mehrkulturalitätsdidaktik},
publisher={Narr Francke Attempto}, author={Ballweg, Sandra}, editor={Fäcke, Christiane
and Plikat, Jochen}, year={2026}, pages={149–151} }'
chicago: 'Ballweg, Sandra. “Portfolio Im Kontext von Mehrsprachigkeit.” In Handbuch
Mehrsprachigkeits- Und Mehrkulturalitätsdidaktik, edited by Christiane Fäcke
and Jochen Plikat, 2nd ed., 149–151. Tübingen: Narr Francke Attempto, 2026.'
ieee: 'S. Ballweg, “Portfolio im Kontext von Mehrsprachigkeit,” in Handbuch Mehrsprachigkeits-
und Mehrkulturalitätsdidaktik, 2nd ed., C. Fäcke and J. Plikat, Eds. Tübingen:
Narr Francke Attempto, 2026, pp. 149–151.'
mla: Ballweg, Sandra. “Portfolio Im Kontext von Mehrsprachigkeit.” Handbuch Mehrsprachigkeits-
Und Mehrkulturalitätsdidaktik, edited by Christiane Fäcke and Jochen Plikat,
2nd ed., Narr Francke Attempto, 2026, pp. 149–151.
short: 'S. Ballweg, in: C. Fäcke, J. Plikat (Eds.), Handbuch Mehrsprachigkeits-
Und Mehrkulturalitätsdidaktik, 2nd ed., Narr Francke Attempto, Tübingen, 2026,
pp. 149–151.'
date_created: 2026-06-03T07:14:40Z
date_updated: 2026-06-03T07:15:32Z
department:
- _id: '468'
- _id: '5'
edition: '2'
editor:
- first_name: Christiane
full_name: Fäcke, Christiane
last_name: Fäcke
- first_name: Jochen
full_name: Plikat, Jochen
last_name: Plikat
language:
- iso: eng
page: ' 149–151'
place: Tübingen
publication: Handbuch Mehrsprachigkeits- und Mehrkulturalitätsdidaktik
publisher: Narr Francke Attempto
status: public
title: Portfolio im Kontext von Mehrsprachigkeit
type: book_chapter
user_id: '94512'
year: '2026'
...
---
_id: '65762'
author:
- first_name: Sandra
full_name: Ballweg, Sandra
id: '94512'
last_name: Ballweg
citation:
ama: 'Ballweg S. Erst-, Zweit- und Mehrsprachenerwerb. In: Fäcke C, Plikat J, eds.
Handbuch Mehrsprachigkeits- Und Mehrkulturalitätsdidaktik. 2nd ed. Narr
Francke Attempto; 2026:289-294.'
apa: Ballweg, S. (2026). Erst-, Zweit- und Mehrsprachenerwerb. In C. Fäcke &
J. Plikat (Eds.), Handbuch Mehrsprachigkeits- und Mehrkulturalitätsdidaktik
(2nd ed., pp. 289–294). Narr Francke Attempto.
bibtex: '@inbook{Ballweg_2026, place={Tübingen}, edition={2}, title={Erst-, Zweit-
und Mehrsprachenerwerb}, booktitle={Handbuch Mehrsprachigkeits- und Mehrkulturalitätsdidaktik},
publisher={Narr Francke Attempto}, author={Ballweg, Sandra}, editor={Fäcke, Christiane
and Plikat, Jochen}, year={2026}, pages={289–294} }'
chicago: 'Ballweg, Sandra. “Erst-, Zweit- Und Mehrsprachenerwerb.” In Handbuch
Mehrsprachigkeits- Und Mehrkulturalitätsdidaktik, edited by Christiane Fäcke
and Jochen Plikat, 2nd ed., 289–94. Tübingen: Narr Francke Attempto, 2026.'
ieee: 'S. Ballweg, “Erst-, Zweit- und Mehrsprachenerwerb,” in Handbuch Mehrsprachigkeits-
und Mehrkulturalitätsdidaktik, 2nd ed., C. Fäcke and J. Plikat, Eds. Tübingen:
Narr Francke Attempto, 2026, pp. 289–294.'
mla: Ballweg, Sandra. “Erst-, Zweit- Und Mehrsprachenerwerb.” Handbuch Mehrsprachigkeits-
Und Mehrkulturalitätsdidaktik, edited by Christiane Fäcke and Jochen Plikat,
2nd ed., Narr Francke Attempto, 2026, pp. 289–94.
short: 'S. Ballweg, in: C. Fäcke, J. Plikat (Eds.), Handbuch Mehrsprachigkeits-
Und Mehrkulturalitätsdidaktik, 2nd ed., Narr Francke Attempto, Tübingen, 2026,
pp. 289–294.'
date_created: 2026-06-03T07:12:39Z
date_updated: 2026-06-03T07:12:45Z
department:
- _id: '468'
- _id: '5'
edition: '2'
editor:
- first_name: Christiane
full_name: Fäcke, Christiane
last_name: Fäcke
- first_name: Jochen
full_name: Plikat, Jochen
last_name: Plikat
language:
- iso: eng
page: 289-294
place: Tübingen
publication: Handbuch Mehrsprachigkeits- und Mehrkulturalitätsdidaktik
publisher: Narr Francke Attempto
status: public
title: Erst-, Zweit- und Mehrsprachenerwerb
type: book_chapter
user_id: '94512'
year: '2026'
...
---
_id: '57910'
author:
- first_name: Johanna
full_name: Sackel, Johanna
id: '8029'
last_name: Sackel
citation:
ama: 'Sackel J. Fisheries and Fishing. In: Storli E, Dungy M, Gerrard A, eds. The
Routledge Handbook on the Economic History of Natural Resources .'
apa: Sackel, J. (n.d.). Fisheries and Fishing. In E. Storli, M. Dungy, & A.
Gerrard (Eds.), The Routledge Handbook on the Economic History of Natural Resources
.
bibtex: '@inbook{Sackel, title={Fisheries and Fishing}, booktitle={The Routledge
Handbook on the Economic History of Natural Resources }, author={Sackel, Johanna},
editor={Storli, Espen and Dungy, Madeleine and Gerrard, Audrey} }'
chicago: Sackel, Johanna. “Fisheries and Fishing.” In The Routledge Handbook
on the Economic History of Natural Resources , edited by Espen Storli, Madeleine
Dungy, and Audrey Gerrard, n.d.
ieee: J. Sackel, “Fisheries and Fishing,” in The Routledge Handbook on the Economic
History of Natural Resources , E. Storli, M. Dungy, and A. Gerrard, Eds. .
mla: Sackel, Johanna. “Fisheries and Fishing.” The Routledge Handbook on the
Economic History of Natural Resources , edited by Espen Storli et al.
short: 'J. Sackel, in: E. Storli, M. Dungy, A. Gerrard (Eds.), The Routledge Handbook
on the Economic History of Natural Resources , n.d.'
date_created: 2025-01-03T17:04:56Z
date_updated: 2026-06-03T08:53:10Z
department:
- _id: '6'
editor:
- first_name: Espen
full_name: Storli, Espen
last_name: Storli
- first_name: Madeleine
full_name: Dungy, Madeleine
last_name: Dungy
- first_name: Audrey
full_name: Gerrard, Audrey
last_name: Gerrard
language:
- iso: eng
publication: 'The Routledge Handbook on the Economic History of Natural Resources '
publication_status: accepted
status: public
title: Fisheries and Fishing
type: book_chapter
user_id: '8029'
year: '2026'
...
---
_id: '65764'
abstract:
- lang: eng
text: 'Information systems (IS) research is increasingly exploring the potential
of generative artificial intelligence (GenAI), such as large language models (LLMs).
For design science research (DSR), such technologies foster entirely new vistas
for the design of IT artifacts that make use of their generative capabilities,
but also influence DSR methodology. This shift is much more profound than it has
been discussed so far. To identify existing implications of GenAI for design-oriented
research in IS, we report results from an integrative literature review of recent
DSR publications in leading IS outlets. Thereby, we synthesize five major theoretical
challenges that arise when using GenAI in DSR projects: (1) an obscure composition
of the artifact, (2) an opaque contextualization of the LLM, (3) a fragile internal
consistency of the artifact, (4) a rapid erosion of prescriptive knowledge, and
(5) missing methodological guidance. We investigate these challenges and conceptualize
a set of three guidelines that inform DSR in the rising era of GenAI. These guidelines
support researchers in designing and justifying GenAI-related DSR processes and
in precisely articulating the theoretical grounding of their design decisions
and evaluation strategies.'
author:
- first_name: Philipp
full_name: zur Heiden, Philipp
id: '64394'
last_name: zur Heiden
- first_name: Daniel
full_name: Beverungen, Daniel
id: '59677'
last_name: Beverungen
- first_name: Christian
full_name: Bartelheimer, Christian
last_name: Bartelheimer
- first_name: Christoph
full_name: Breidbach, Christoph
last_name: Breidbach
citation:
ama: 'zur Heiden P, Beverungen D, Bartelheimer C, Breidbach C. Design Science Research
in an Era of Generative AI—Challenges and Theoretical Guidelines. In: Lecture
Notes in Computer Science. Vol 16606. Lecture Notes in Computer Science.
Springer Nature Switzerland; 2026. doi:10.1007/978-3-032-28313-9_22'
apa: zur Heiden, P., Beverungen, D., Bartelheimer, C., & Breidbach, C. (2026).
Design Science Research in an Era of Generative AI—Challenges and Theoretical
Guidelines. Lecture Notes in Computer Science, 16606. https://doi.org/10.1007/978-3-032-28313-9_22
bibtex: '@inproceedings{zur Heiden_Beverungen_Bartelheimer_Breidbach_2026, place={Cham},
series={ Lecture Notes in Computer Science}, title={Design Science Research in an Era
of Generative AI—Challenges and Theoretical Guidelines}, volume={16606}, DOI={10.1007/978-3-032-28313-9_22},
booktitle={Lecture Notes in Computer Science}, publisher={Springer Nature Switzerland},
author={zur Heiden, Philipp and Beverungen, Daniel and Bartelheimer, Christian
and Breidbach, Christoph}, year={2026}, collection={ Lecture Notes in Computer
Science} }'
chicago: 'Heiden, Philipp zur, Daniel Beverungen, Christian Bartelheimer, and Christoph
Breidbach. “Design Science Research in an Era of Generative AI—Challenges and Theoretical
Guidelines.” In Lecture Notes in Computer Science, Vol. 16606. Lecture
Notes in Computer Science. Cham: Springer Nature Switzerland, 2026. https://doi.org/10.1007/978-3-032-28313-9_22.'
ieee: 'P. zur Heiden, D. Beverungen, C. Bartelheimer, and C. Breidbach, “Design
Science Research in an Era of Generative AI—Challenges and Theoretical Guidelines,”
in Lecture Notes in Computer Science, Muenster, 2026, vol. 16606, doi:
10.1007/978-3-032-28313-9_22.'
mla: zur Heiden, Philipp, et al. “Design Science Research in an Era of Generative
AI—Challenges and Theoretical Guidelines.” Lecture Notes in Computer Science,
vol. 16606, Springer Nature Switzerland, 2026, doi:10.1007/978-3-032-28313-9_22.
short: 'P. zur Heiden, D. Beverungen, C. Bartelheimer, C. Breidbach, in: Lecture
Notes in Computer Science, Springer Nature Switzerland, Cham, 2026.'
conference:
end_date: 2026-06-10
location: Muenster
name: DESRIST 2026
start_date: 2026-06-08
date_created: 2026-06-03T09:20:18Z
date_updated: 2026-06-03T09:25:50Z
department:
- _id: '195'
doi: 10.1007/978-3-032-28313-9_22
intvolume: ' 16606'
language:
- iso: eng
main_file_link:
- url: https://link.springer.com/chapter/10.1007/978-3-032-28313-9_22
place: Cham
publication: Lecture Notes in Computer Science
publication_identifier:
isbn:
- '9783032283122'
- '9783032283139'
issn:
- 0302-9743
- 1611-3349
publication_status: published
publisher: Springer Nature Switzerland
quality_controlled: '1'
series_title: ' Lecture Notes in Computer Science'
status: public
title: Design Science Research in an Era of Generative AI—Challenges and Theoretical
Guidelines
type: conference
user_id: '59677'
volume: 16606
year: '2026'
...
---
_id: '62957'
alternative_title:
- Analyse der Modellierungsprozesse von Grundschüler:innen zum Thema Löslichkeit
author:
- first_name: Julia
full_name: Elsner, Julia
id: '54277'
last_name: Elsner
- first_name: Claudia
full_name: Tenberge, Claudia
id: '67302'
last_name: Tenberge
- first_name: Sabine
full_name: Fechner, Sabine
id: '54823'
last_name: Fechner
orcid: 0000-0001-5645-5870
citation:
ama: Elsner J, Tenberge C, Fechner S. Modellieren und Denken im Diskontinuum. Zeitschrift
für Didaktik der Naturwissenschaften. 2026;32(1):1-17. doi:10.1007/s40573-026-00194-1
apa: Elsner, J., Tenberge, C., & Fechner, S. (2026). Modellieren und Denken
im Diskontinuum. Zeitschrift für Didaktik der Naturwissenschaften, 32(1),
1–17. https://doi.org/10.1007/s40573-026-00194-1
bibtex: '@article{Elsner_Tenberge_Fechner_2026, title={Modellieren und Denken im
Diskontinuum}, volume={32}, DOI={10.1007/s40573-026-00194-1},
number={1}, journal={Zeitschrift für Didaktik der Naturwissenschaften}, author={Elsner,
Julia and Tenberge, Claudia and Fechner, Sabine}, year={2026}, pages={1–17} }'
chicago: 'Elsner, Julia, Claudia Tenberge, and Sabine Fechner. “Modellieren und
Denken im Diskontinuum.” Zeitschrift für Didaktik der Naturwissenschaften
32, no. 1 (2026): 1–17. https://doi.org/10.1007/s40573-026-00194-1.'
ieee: 'J. Elsner, C. Tenberge, and S. Fechner, “Modellieren und Denken im Diskontinuum,”
Zeitschrift für Didaktik der Naturwissenschaften, vol. 32, no. 1, pp. 1–17,
2026, doi: 10.1007/s40573-026-00194-1.'
mla: Elsner, Julia, et al. “Modellieren und Denken im Diskontinuum.” Zeitschrift
für Didaktik der Naturwissenschaften, vol. 32, no. 1, 2026, pp. 1–17, doi:10.1007/s40573-026-00194-1.
short: J. Elsner, C. Tenberge, S. Fechner, Zeitschrift für Didaktik der Naturwissenschaften
32 (2026) 1–17.
date_created: 2025-12-08T09:33:10Z
date_updated: 2026-06-03T12:02:08Z
department:
- _id: '386'
- _id: '588'
doi: 10.1007/s40573-026-00194-1
intvolume: ' 32'
issue: '1'
language:
- iso: ger
page: 1-17
publication: Zeitschrift für Didaktik der Naturwissenschaften
publication_status: published
quality_controlled: '1'
status: public
title: Modellieren und Denken im Diskontinuum
type: journal_article
user_id: '54277'
volume: 32
year: '2026'
...
---
_id: '65772'
author:
- first_name: Axel
full_name: Axel, Axel
id: '55565'
last_name: Axel
orcid: '55565'
- first_name: Aida
full_name: Aida, Aida
last_name: Aida
- first_name: Manuel
full_name: Manuel, Manuel
last_name: Manuel
- first_name: Meinard
full_name: Meinard, Meinard
last_name: Meinard
- first_name: Stefan
full_name: Stefan, Stefan
last_name: Stefan
citation:
ama: 'Axel A, Aida A, Manuel M, Meinard M, Stefan S. ChoraleWind: An Expressive
Wind-Quartet Dataset for End-to-End Rendering from the Neues Thüringer Choralbuch.
In: Proc. of the International Computer Music Conference (ICMC). ; 2026:43–50.'
apa: 'Axel, A., Aida, A., Manuel, M., Meinard, M., & Stefan, S. (2026). ChoraleWind:
An Expressive Wind-Quartet Dataset for End-to-End Rendering from the Neues Thüringer
Choralbuch. Proc. of the International Computer Music Conference (ICMC),
43–50.'
bibtex: '@inproceedings{Axel_Aida_Manuel_Meinard_Stefan_2026, place={Hamburg, Germany},
title={ChoraleWind: An Expressive Wind-Quartet Dataset for End-to-End Rendering
from the Neues Thüringer Choralbuch}, booktitle={Proc. of the International Computer
Music Conference (ICMC)}, author={Axel, Axel and Aida, Aida and Manuel, Manuel
and Meinard, Meinard and Stefan, Stefan}, year={2026}, pages={43–50} }'
chicago: 'Axel, Axel, Aida Aida, Manuel Manuel, Meinard Meinard, and Stefan Stefan.
“ChoraleWind: An Expressive Wind-Quartet Dataset for End-to-End Rendering from
the Neues Thüringer Choralbuch.” In Proc. of the International Computer Music
Conference (ICMC), 43–50. Hamburg, Germany, 2026.'
ieee: 'A. Axel, A. Aida, M. Manuel, M. Meinard, and S. Stefan, “ChoraleWind: An
Expressive Wind-Quartet Dataset for End-to-End Rendering from the Neues Thüringer
Choralbuch,” in Proc. of the International Computer Music Conference (ICMC),
2026, pp. 43–50.'
mla: 'Axel, Axel, et al. “ChoraleWind: An Expressive Wind-Quartet Dataset for End-to-End
Rendering from the Neues Thüringer Choralbuch.” Proc. of the International
Computer Music Conference (ICMC), 2026, pp. 43–50.'
short: 'A. Axel, A. Aida, M. Manuel, M. Meinard, S. Stefan, in: Proc. of the International
Computer Music Conference (ICMC), Hamburg, Germany, 2026, pp. 43–50.'
date_created: 2026-06-03T12:47:13Z
date_updated: 2026-06-03T12:50:35Z
department:
- _id: '36'
- _id: '233'
- _id: '870'
language:
- iso: eng
page: 43–50
place: Hamburg, Germany
project:
- _id: '1048'
name: KreativInstitut.OWL
publication: Proc. of the International Computer Music Conference (ICMC)
status: public
title: 'ChoraleWind: An Expressive Wind-Quartet Dataset for End-to-End Rendering from
the Neues Thüringer Choralbuch'
type: conference
user_id: '55565'
year: '2026'
...
---
_id: '65771'
author:
- first_name: Axel
full_name: Berndt, Axel
id: '55565'
last_name: Berndt
- first_name: Andreas
full_name: Münzmay, Andreas
id: '61139'
last_name: Münzmay
orcid: 0000-0002-8373-4055
- first_name: Aida
full_name: Amiryan-Stein, Aida
last_name: Amiryan-Stein
citation:
ama: 'Berndt A, Münzmay A, Amiryan-Stein A. Methoden und Perspektiven digitaler
Edition von Choralbüchern. In: Telemann Als Interdisziplinärer Forschungsgegenstand:
Internationale Wissenschaftliche Konferenz. ; 2026.'
apa: 'Berndt, A., Münzmay, A., & Amiryan-Stein, A. (2026). Methoden und Perspektiven
digitaler Edition von Choralbüchern. Telemann Als Interdisziplinärer Forschungsgegenstand:
Internationale Wissenschaftliche Konferenz.'
bibtex: '@inproceedings{Berndt_Münzmay_Amiryan-Stein_2026, place={Magdeburg, Germany},
title={Methoden und Perspektiven digitaler Edition von Choralbüchern}, booktitle={Telemann
als interdisziplinärer Forschungsgegenstand: Internationale Wissenschaftliche
Konferenz}, author={Berndt, Axel and Münzmay, Andreas and Amiryan-Stein, Aida},
year={2026} }'
chicago: 'Berndt, Axel, Andreas Münzmay, and Aida Amiryan-Stein. “Methoden Und Perspektiven
Digitaler Edition von Choralbüchern.” In Telemann Als Interdisziplinärer Forschungsgegenstand:
Internationale Wissenschaftliche Konferenz. Magdeburg, Germany, 2026.'
ieee: A. Berndt, A. Münzmay, and A. Amiryan-Stein, “Methoden und Perspektiven digitaler
Edition von Choralbüchern,” 2026.
mla: 'Berndt, Axel, et al. “Methoden Und Perspektiven Digitaler Edition von Choralbüchern.”
Telemann Als Interdisziplinärer Forschungsgegenstand: Internationale Wissenschaftliche
Konferenz, 2026.'
short: 'A. Berndt, A. Münzmay, A. Amiryan-Stein, in: Telemann Als Interdisziplinärer
Forschungsgegenstand: Internationale Wissenschaftliche Konferenz, Magdeburg, Germany,
2026.'
date_created: 2026-06-03T12:42:17Z
date_updated: 2026-06-03T12:45:34Z
department:
- _id: '36'
- _id: '233'
- _id: '870'
language:
- iso: eng
place: Magdeburg, Germany
project:
- _id: '1048'
name: KreativInstitut.OWL
publication: 'Telemann als interdisziplinärer Forschungsgegenstand: Internationale
Wissenschaftliche Konferenz'
status: public
title: Methoden und Perspektiven digitaler Edition von Choralbüchern
type: conference
user_id: '55565'
year: '2026'
...