---
_id: '13770'
author:
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
- first_name: Dennis
  full_name: Kundisch, Dennis
  id: '21117'
  last_name: Kundisch
- first_name: Friedhelm
  full_name: Meyer auf der Heide, Friedhelm
  id: '15523'
  last_name: Meyer auf der Heide
- first_name: Heike
  full_name: Wehrheim, Heike
  id: '573'
  last_name: Wehrheim
citation:
  ama: 'Karl H, Kundisch D, Meyer auf der Heide F, Wehrheim H. A Case for a New IT
    Ecosystem: On-The-Fly Computing. <i>Business &#38; Information Systems Engineering</i>.
    2020;62(6):467-481. doi:<a href="https://doi.org/10.1007/s12599-019-00627-x">10.1007/s12599-019-00627-x</a>'
  apa: 'Karl, H., Kundisch, D., Meyer auf der Heide, F., &#38; Wehrheim, H. (2020).
    A Case for a New IT Ecosystem: On-The-Fly Computing. <i>Business &#38; Information
    Systems Engineering</i>, <i>62</i>(6), 467–481. <a href="https://doi.org/10.1007/s12599-019-00627-x">https://doi.org/10.1007/s12599-019-00627-x</a>'
  bibtex: '@article{Karl_Kundisch_Meyer auf der Heide_Wehrheim_2020, title={A Case
    for a New IT Ecosystem: On-The-Fly Computing}, volume={62}, DOI={<a href="https://doi.org/10.1007/s12599-019-00627-x">10.1007/s12599-019-00627-x</a>},
    number={6}, journal={Business &#38; Information Systems Engineering}, publisher={Springer},
    author={Karl, Holger and Kundisch, Dennis and Meyer auf der Heide, Friedhelm and
    Wehrheim, Heike}, year={2020}, pages={467–481} }'
  chicago: 'Karl, Holger, Dennis Kundisch, Friedhelm Meyer auf der Heide, and Heike
    Wehrheim. “A Case for a New IT Ecosystem: On-The-Fly Computing.” <i>Business &#38;
    Information Systems Engineering</i> 62, no. 6 (2020): 467–81. <a href="https://doi.org/10.1007/s12599-019-00627-x">https://doi.org/10.1007/s12599-019-00627-x</a>.'
  ieee: 'H. Karl, D. Kundisch, F. Meyer auf der Heide, and H. Wehrheim, “A Case for
    a New IT Ecosystem: On-The-Fly Computing,” <i>Business &#38; Information Systems
    Engineering</i>, vol. 62, no. 6, pp. 467–481, 2020, doi: <a href="https://doi.org/10.1007/s12599-019-00627-x">10.1007/s12599-019-00627-x</a>.'
  mla: 'Karl, Holger, et al. “A Case for a New IT Ecosystem: On-The-Fly Computing.”
    <i>Business &#38; Information Systems Engineering</i>, vol. 62, no. 6, Springer,
    2020, pp. 467–81, doi:<a href="https://doi.org/10.1007/s12599-019-00627-x">10.1007/s12599-019-00627-x</a>.'
  short: H. Karl, D. Kundisch, F. Meyer auf der Heide, H. Wehrheim, Business &#38;
    Information Systems Engineering 62 (2020) 467–481.
date_created: 2019-10-10T13:41:06Z
date_updated: 2022-12-02T09:27:17Z
ddc:
- '004'
department:
- _id: '276'
- _id: '75'
- _id: '63'
- _id: '77'
doi: 10.1007/s12599-019-00627-x
file:
- access_level: closed
  content_type: application/pdf
  creator: ups
  date_created: 2019-12-12T10:24:47Z
  date_updated: 2019-12-12T10:24:47Z
  file_id: '15311'
  file_name: Karl2019_Article_ACaseForANewITEcosystemOn-The-.pdf
  file_size: 454532
  relation: main_file
  success: 1
file_date_updated: 2019-12-12T10:24:47Z
has_accepted_license: '1'
intvolume: '        62'
issue: '6'
language:
- iso: eng
page: 467-481
project:
- _id: '1'
  name: SFB 901
- _id: '2'
  name: SFB 901 - Project Area A
- _id: '3'
  name: SFB 901 - Project Area B
- _id: '4'
  name: SFB 901 - Project Area C
- _id: '82'
  name: SFB 901 - Project Area T
- _id: '5'
  name: SFB 901 - Subproject A1
- _id: '6'
  name: SFB 901 - Subproject A2
- _id: '7'
  name: SFB 901 - Subproject A3
- _id: '8'
  name: SFB 901 - Subproject A4
- _id: '9'
  name: SFB 901 - Subproject B1
- _id: '10'
  name: SFB 901 - Subproject B2
- _id: '11'
  name: SFB 901 - Subproject B3
- _id: '12'
  name: SFB 901 - Subproject B4
- _id: '13'
  name: SFB 901 - Subproject C1
- _id: '14'
  name: SFB 901 - Subproject C2
- _id: '15'
  name: SFB 901 - Subproject C3
- _id: '16'
  name: SFB 901 - Subproject C4
- _id: '17'
  name: SFB 901 - Subproject C5
- _id: '83'
  name: SFB 901 -Subproject T1
- _id: '84'
  name: SFB 901 -Subproject T2
- _id: '107'
  name: SFB 901 -Subproject T3
- _id: '158'
  name: 'SFB 901 - T4: SFB 901 -Subproject T4'
publication: Business & Information Systems Engineering
publication_status: published
publisher: Springer
status: public
title: 'A Case for a New IT Ecosystem: On-The-Fly Computing'
type: journal_article
user_id: '477'
volume: 62
year: '2020'
...
---
_id: '6016'
author:
- first_name: Manuel
  full_name: Peuster, Manuel
  id: '13271'
  last_name: Peuster
- first_name: Holger
  full_name: Karl, Holger
  id: '126'
  last_name: Karl
citation:
  ama: 'Peuster M, Karl H. Understand your chains and keep your deadlines: Introducing
    time-constrained profiling for NFV. In: <i>IEEE/IFIP 14th International Conference
    on Network and Service Management (CNSM)</i>. Rome: IEEE/IFIP.'
  apa: 'Peuster, M., &#38; Karl, H. (n.d.). Understand your chains and keep your deadlines:
    Introducing time-constrained profiling for NFV. In <i>IEEE/IFIP 14th International
    Conference on Network and Service Management (CNSM)</i>. Rome: IEEE/IFIP.'
  bibtex: '@inproceedings{Peuster_Karl, place={Rome}, title={Understand your chains
    and keep your deadlines: Introducing time-constrained profiling for NFV}, booktitle={IEEE/IFIP
    14th International Conference on Network and Service Management (CNSM)}, publisher={IEEE/IFIP},
    author={Peuster, Manuel and Karl, Holger} }'
  chicago: 'Peuster, Manuel, and Holger Karl. “Understand Your Chains and Keep Your
    Deadlines: Introducing Time-Constrained Profiling for NFV.” In <i>IEEE/IFIP 14th
    International Conference on Network and Service Management (CNSM)</i>. Rome: IEEE/IFIP,
    n.d.'
  ieee: 'M. Peuster and H. Karl, “Understand your chains and keep your deadlines:
    Introducing time-constrained profiling for NFV,” in <i>IEEE/IFIP 14th International
    Conference on Network and Service Management (CNSM)</i>, Rome.'
  mla: 'Peuster, Manuel, and Holger Karl. “Understand Your Chains and Keep Your Deadlines:
    Introducing Time-Constrained Profiling for NFV.” <i>IEEE/IFIP 14th International
    Conference on Network and Service Management (CNSM)</i>, IEEE/IFIP.'
  short: 'M. Peuster, H. Karl, in: IEEE/IFIP 14th International Conference on Network
    and Service Management (CNSM), IEEE/IFIP, Rome, n.d.'
conference:
  end_date: 2018-11-09
  location: Rome
  name: IEEE/IFIP 14th International Conference on Network and Service Management
    (CNSM)
  start_date: 2018-11-05
date_created: 2018-12-06T12:06:14Z
date_updated: 2022-01-06T07:02:50Z
ddc:
- '000'
department:
- _id: '75'
file:
- access_level: open_access
  content_type: application/pdf
  creator: peuster
  date_created: 2018-12-06T12:05:37Z
  date_updated: 2018-12-06T12:05:37Z
  file_id: '6017'
  file_name: main_copy_for_ris.pdf
  file_size: 961004
  relation: main_file
file_date_updated: 2018-12-06T12:05:37Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- url: https://ieeexplore.ieee.org/abstract/document/8584974
oa: '1'
place: Rome
project:
- _id: '28'
  grant_number: '761493'
  name: 5G Development and validation platform for global industry-specific network
    services and Apps
- _id: '1'
  name: SFB 901
- _id: '4'
  name: SFB 901 - Project Area C
- _id: '15'
  name: SFB 901 - Subproject C3
publication: IEEE/IFIP 14th International Conference on Network and Service Management
  (CNSM)
publication_status: accepted
publisher: IEEE/IFIP
status: public
title: 'Understand your chains and keep your deadlines: Introducing time-constrained
  profiling for NFV'
type: conference
user_id: '13271'
year: '2018'
...
---
_id: '172'
author:
- first_name: Florian
  full_name: Stapel, Florian
  last_name: Stapel
citation:
  ama: Stapel F. <i>Ontology-Based Representation of Abstract Optimization Models
    for Model Formulation and System Generation</i>. Universität Paderborn; 2016.
  apa: Stapel, F. (2016). <i>Ontology-based representation of abstract optimization
    models for model formulation and system generation</i>. Universität Paderborn.
  bibtex: '@book{Stapel_2016, title={Ontology-based representation of abstract optimization
    models for model formulation and system generation}, publisher={Universität Paderborn},
    author={Stapel, Florian}, year={2016} }'
  chicago: Stapel, Florian. <i>Ontology-Based Representation of Abstract Optimization
    Models for Model Formulation and System Generation</i>. Universität Paderborn,
    2016.
  ieee: F. Stapel, <i>Ontology-based representation of abstract optimization models
    for model formulation and system generation</i>. Universität Paderborn, 2016.
  mla: Stapel, Florian. <i>Ontology-Based Representation of Abstract Optimization
    Models for Model Formulation and System Generation</i>. Universität Paderborn,
    2016.
  short: F. Stapel, Ontology-Based Representation of Abstract Optimization Models
    for Model Formulation and System Generation, Universität Paderborn, 2016.
date_created: 2017-10-17T12:41:25Z
date_updated: 2022-01-06T06:53:06Z
ddc:
- '040'
department:
- _id: '19'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T12:39:19Z
  date_updated: 2018-03-21T12:39:19Z
  file_id: '1537'
  file_name: 172-FStapelDissertation.pdf
  file_size: 9301431
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T12:39:19Z
has_accepted_license: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Lena
  full_name: Suhl, Lena
  last_name: Suhl
title: Ontology-based representation of abstract optimization models for model formulation
  and system generation
type: dissertation
user_id: '477'
year: '2016'
...
---
_id: '263'
abstract:
- lang: eng
  text: In the last two decades, water consumption in Germany has been decreasing,
    which causes the water tanks and pipes in water distribution systems to work inefficiently.
    This paper proposes a method that supports the planning process for tanks in water
    distribution systems. The method uses a combination of network reduction, mathematical
    optimization and hydraulic simulation. The mathematical optimization model is
    a non-convex Mixed Integer Quadratically Constrained Program (MIQCP) that is solved
    by a piecewise linearization. As this may lead to many binary variables and therefore
    high computing times, the size of the water distribution system model is reduced
    before building the optimization model. After applying several network reduction
    techniques and using a piecewise approximation of the original model, there may
    be some hydraulic differences between the original network model and the reduced
    network model. To make sure that the solution obtained in the optimization process
    is feasible in the original water distribution system model, the solution is verified
    by a hydraulic simulation. If the solution is not feasible, the reduced model
    has to be modified and solved again until the hydraulic simulation verifies a
    solution as feasible. In this paper, each of these processes is described and
    the results indicate the usefulness of each of them.
author:
- first_name: Corinna
  full_name: Hallmann, Corinna
  last_name: Hallmann
- first_name: Leena
  full_name: Suhl, Leena
  last_name: Suhl
citation:
  ama: Hallmann C, Suhl L. Optimizing Water Tanks in Water Distribution Systems by
    combining Network Reduction, Mathematical Optimization and Hydraulic Simulation.
    <i>OR Spectrum</i>. 2015:1-19. doi:<a href="https://doi.org/10.1007/s00291-015-0403-1">10.1007/s00291-015-0403-1</a>
  apa: Hallmann, C., &#38; Suhl, L. (2015). Optimizing Water Tanks in Water Distribution
    Systems by combining Network Reduction, Mathematical Optimization and Hydraulic
    Simulation. <i>OR Spectrum</i>, 1–19. <a href="https://doi.org/10.1007/s00291-015-0403-1">https://doi.org/10.1007/s00291-015-0403-1</a>
  bibtex: '@article{Hallmann_Suhl_2015, title={Optimizing Water Tanks in Water Distribution
    Systems by combining Network Reduction, Mathematical Optimization and Hydraulic
    Simulation}, DOI={<a href="https://doi.org/10.1007/s00291-015-0403-1">10.1007/s00291-015-0403-1</a>},
    journal={OR Spectrum}, publisher={Springer}, author={Hallmann, Corinna and Suhl,
    Leena}, year={2015}, pages={1–19} }'
  chicago: Hallmann, Corinna, and Leena Suhl. “Optimizing Water Tanks in Water Distribution
    Systems by Combining Network Reduction, Mathematical Optimization and Hydraulic
    Simulation.” <i>OR Spectrum</i>, 2015, 1–19. <a href="https://doi.org/10.1007/s00291-015-0403-1">https://doi.org/10.1007/s00291-015-0403-1</a>.
  ieee: C. Hallmann and L. Suhl, “Optimizing Water Tanks in Water Distribution Systems
    by combining Network Reduction, Mathematical Optimization and Hydraulic Simulation,”
    <i>OR Spectrum</i>, pp. 1–19, 2015.
  mla: Hallmann, Corinna, and Leena Suhl. “Optimizing Water Tanks in Water Distribution
    Systems by Combining Network Reduction, Mathematical Optimization and Hydraulic
    Simulation.” <i>OR Spectrum</i>, Springer, 2015, pp. 1–19, doi:<a href="https://doi.org/10.1007/s00291-015-0403-1">10.1007/s00291-015-0403-1</a>.
  short: C. Hallmann, L. Suhl, OR Spectrum (2015) 1–19.
date_created: 2017-10-17T12:41:43Z
date_updated: 2022-01-06T06:57:19Z
ddc:
- '040'
doi: 10.1007/s00291-015-0403-1
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T09:35:03Z
  date_updated: 2018-03-21T09:35:03Z
  file_id: '1482'
  file_name: 263-Hallmann_-_Optimizing_water_tanks_in_water_distribution_systems.pdf
  file_size: 430920
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T09:35:03Z
has_accepted_license: '1'
page: 1-19
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publication: OR Spectrum
publisher: Springer
status: public
title: Optimizing Water Tanks in Water Distribution Systems by combining Network Reduction,
  Mathematical Optimization and Hydraulic Simulation
type: journal_article
user_id: '477'
year: '2015'
...
---
_id: '265'
author:
- first_name: Corinna
  full_name: Hallmann, Corinna
  last_name: Hallmann
citation:
  ama: Hallmann C. <i>Optimierung von Wasserbehältern in einem Wasserversorgungssystem
    mittels einer Kombination aus Netzreduktion, mathematischer Optimierung und hydraulischer
    Simulation</i>. Universität Paderborn; 2015.
  apa: Hallmann, C. (2015). <i>Optimierung von Wasserbehältern in einem Wasserversorgungssystem
    mittels einer Kombination aus Netzreduktion, mathematischer Optimierung und hydraulischer
    Simulation</i>. Universität Paderborn.
  bibtex: '@book{Hallmann_2015, title={Optimierung von Wasserbehältern in einem Wasserversorgungssystem
    mittels einer Kombination aus Netzreduktion, mathematischer Optimierung und hydraulischer
    Simulation}, publisher={Universität Paderborn}, author={Hallmann, Corinna}, year={2015}
    }'
  chicago: Hallmann, Corinna. <i>Optimierung von Wasserbehältern in einem Wasserversorgungssystem
    mittels einer Kombination aus Netzreduktion, mathematischer Optimierung und hydraulischer
    Simulation</i>. Universität Paderborn, 2015.
  ieee: C. Hallmann, <i>Optimierung von Wasserbehältern in einem Wasserversorgungssystem
    mittels einer Kombination aus Netzreduktion, mathematischer Optimierung und hydraulischer
    Simulation</i>. Universität Paderborn, 2015.
  mla: Hallmann, Corinna. <i>Optimierung von Wasserbehältern in einem Wasserversorgungssystem
    mittels einer Kombination aus Netzreduktion, mathematischer Optimierung und hydraulischer
    Simulation</i>. Universität Paderborn, 2015.
  short: C. Hallmann, Optimierung von Wasserbehältern in einem Wasserversorgungssystem
    mittels einer Kombination aus Netzreduktion, mathematischer Optimierung und hydraulischer
    Simulation, Universität Paderborn, 2015.
date_created: 2017-10-17T12:41:43Z
date_updated: 2022-01-06T06:57:21Z
ddc:
- '040'
department:
- _id: '19'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-21T09:34:10Z
  date_updated: 2018-03-21T09:34:10Z
  file_id: '1480'
  file_name: 265-Dissertation_-_Corinna_Hallmann.pdf
  file_size: 2745774
  relation: main_file
  success: 1
file_date_updated: 2018-03-21T09:34:10Z
has_accepted_license: '1'
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Lena
  full_name: Suhl, Lena
  last_name: Suhl
title: Optimierung von Wasserbehältern in einem Wasserversorgungssystem mittels einer
  Kombination aus Netzreduktion, mathematischer Optimierung und hydraulischer Simulation
type: dissertation
user_id: '477'
year: '2015'
...
---
_id: '389'
abstract:
- lang: eng
  text: This article presents a new approach for representing and processing abstract
    optimization models. Confronted with model and data integration tasks for distributed
    Decision Support Systems which are especially composed out of software services,
    we describe model constituents such as constraints both structurally and semantically.
    Within our approach, typed model constituents can be integrated into complete
    models and the instantiation of model constituents itself with data and data models
    can be wrapped into semantic software services. Besides others, this supports
    the automated generation of adaptors and the search for and composition of services.
    The basic idea of our approach is to represent the optimization models as instance
    knowledge of different ontologies for both optimization and application domains.
    By separating the model expression structure from the goal and constraint conceptualizations
    predefined modeling constructs can be reused, where we do not only separate the
    model structure from data, but can also abstract the structure from a specific
    data model. We present an XML and ontology-query based approach for this separation
    and demonstrate the resulting flexible model integration procedure out of reusable
    goal and constraint types on a network flow problem.
author:
- first_name: Florian
  full_name: Stapel, Florian
  last_name: Stapel
- first_name: Lena
  full_name: Suhl, Lena
  last_name: Suhl
citation:
  ama: Stapel F, Suhl L. <i>Ontology-Based Representation of Optimization Models</i>.
    Universität Paderborn; 2014.
  apa: Stapel, F., &#38; Suhl, L. (2014). <i>Ontology-based Representation of Optimization
    Models</i>. Universität Paderborn.
  bibtex: '@book{Stapel_Suhl_2014, title={Ontology-based Representation of Optimization
    Models}, publisher={Universität Paderborn}, author={Stapel, Florian and Suhl,
    Lena}, year={2014} }'
  chicago: Stapel, Florian, and Lena Suhl. <i>Ontology-Based Representation of Optimization
    Models</i>. Universität Paderborn, 2014.
  ieee: F. Stapel and L. Suhl, <i>Ontology-based Representation of Optimization Models</i>.
    Universität Paderborn, 2014.
  mla: Stapel, Florian, and Lena Suhl. <i>Ontology-Based Representation of Optimization
    Models</i>. Universität Paderborn, 2014.
  short: F. Stapel, L. Suhl, Ontology-Based Representation of Optimization Models,
    Universität Paderborn, 2014.
date_created: 2017-10-17T12:42:07Z
date_updated: 2022-01-06T06:59:49Z
ddc:
- '040'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-20T07:01:29Z
  date_updated: 2018-03-20T07:01:29Z
  file_id: '1386'
  file_name: 389-201x_-_Stapel__Suhl_-_Ontology-based_Representation_of_Optimization_Models.pdf
  file_size: 595852
  relation: main_file
  success: 1
file_date_updated: 2018-03-20T07:01:29Z
has_accepted_license: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: Ontology-based Representation of Optimization Models
type: report
user_id: '15504'
year: '2014'
...
---
_id: '465'
abstract:
- lang: eng
  text: This article presents a novel Mixed Integer Nonlinear Programming (MINLP)
    approach for finding a renewal plan of pipes in a water distribution system. We
    formulate a MINLP model for finding the times of renewal and suited measurements
    of pipe dimensions in a multi-year planning horizon. The model includes a multi-period
    hydraulic simulation of the distribution systems behaviour thereby respecting
    the friction caused headloss as a nonlinear constraint. We apply the MINLP solver
    Bonmin to a test network and present first numerical results. The models embedding
    into a general solution framework for water network problems consisting of network
    reduction and simulation steps in an interated way, is beign discussed. This latter
    discussion corresponds well to the recent results by C. Hallmann for the problem
    of tank planning within the mentioned solution framework that has been presented
    there for the first time.
author:
- first_name: Florian
  full_name: Stapel, Florian
  last_name: Stapel
- first_name: Leena
  full_name: Suhl, Leena
  last_name: Suhl
citation:
  ama: Stapel F, Suhl L. <i>A MINLP Approach for Planning the Renewal of Pipes in
    Drinking Water Networks</i>. Universität Paderborn; 2014.
  apa: Stapel, F., &#38; Suhl, L. (2014). <i>A MINLP Approach for Planning the Renewal
    of Pipes in Drinking Water Networks</i>. Universität Paderborn.
  bibtex: '@book{Stapel_Suhl_2014, title={A MINLP Approach for Planning the Renewal
    of Pipes in Drinking Water Networks}, publisher={Universität Paderborn}, author={Stapel,
    Florian and Suhl, Leena}, year={2014} }'
  chicago: Stapel, Florian, and Leena Suhl. <i>A MINLP Approach for Planning the Renewal
    of Pipes in Drinking Water Networks</i>. Universität Paderborn, 2014.
  ieee: F. Stapel and L. Suhl, <i>A MINLP Approach for Planning the Renewal of Pipes
    in Drinking Water Networks</i>. Universität Paderborn, 2014.
  mla: Stapel, Florian, and Leena Suhl. <i>A MINLP Approach for Planning the Renewal
    of Pipes in Drinking Water Networks</i>. Universität Paderborn, 2014.
  short: F. Stapel, L. Suhl, A MINLP Approach for Planning the Renewal of Pipes in
    Drinking Water Networks, Universität Paderborn, 2014.
date_created: 2017-10-17T12:42:22Z
date_updated: 2022-01-06T07:01:16Z
ddc:
- '040'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-16T11:20:22Z
  date_updated: 2018-03-16T11:20:22Z
  file_id: '1335'
  file_name: 465-2014_-_Stapel__Suhl_-_TechReport_MINLP_Water.pdf
  file_size: 435976
  relation: main_file
  success: 1
file_date_updated: 2018-03-16T11:20:22Z
has_accepted_license: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: A MINLP Approach for Planning the Renewal of Pipes in Drinking Water Networks
type: report
user_id: '15504'
year: '2014'
...
---
_id: '429'
author:
- first_name: Maik
  full_name: Herbort, Maik
  last_name: Herbort
citation:
  ama: Herbort M. <i>Entwicklung eines mathematischen Modells zur Optimierung der
    Struktur eines Trinkwasserbehälters</i>. Universität Paderborn; 2014.
  apa: Herbort, M. (2014). <i>Entwicklung eines mathematischen Modells zur Optimierung
    der Struktur eines Trinkwasserbehälters</i>. Universität Paderborn.
  bibtex: '@book{Herbort_2014, title={Entwicklung eines mathematischen Modells zur
    Optimierung der Struktur eines Trinkwasserbehälters}, publisher={Universität Paderborn},
    author={Herbort, Maik}, year={2014} }'
  chicago: Herbort, Maik. <i>Entwicklung eines mathematischen Modells zur Optimierung
    der Struktur eines Trinkwasserbehälters</i>. Universität Paderborn, 2014.
  ieee: M. Herbort, <i>Entwicklung eines mathematischen Modells zur Optimierung der
    Struktur eines Trinkwasserbehälters</i>. Universität Paderborn, 2014.
  mla: Herbort, Maik. <i>Entwicklung eines mathematischen Modells zur Optimierung
    der Struktur eines Trinkwasserbehälters</i>. Universität Paderborn, 2014.
  short: M. Herbort, Entwicklung eines mathematischen Modells zur Optimierung der
    Struktur eines Trinkwasserbehälters, Universität Paderborn, 2014.
date_created: 2017-10-17T12:42:15Z
date_updated: 2022-01-06T07:00:48Z
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: Entwicklung eines mathematischen Modells zur Optimierung der Struktur eines
  Trinkwasserbehälters
type: bachelorsthesis
user_id: '477'
year: '2014'
...
---
_id: '557'
abstract:
- lang: eng
  text: Since the last two decades, the water consumption in Germany is decreasing,
    which causes the water tanks and pipes in a water supply system to work inefficiently.
    This paper proposes an approach for a decision support system, which helps to
    decide how to plan new water tanks and resize existing tanks in water supply systems.
    The approach uses a combination of network reduction, mathematical optimization
    and hydraulic simulation. The mathematical optimization model is a nonconvex Mixed
    Integer Quadratically Constrained Program (MIQCP), which is solved by a piecewise
    linearization. As this may lead to many binary variables and therefore high computational
    times, the size of the water supply system model is reduced before building the
    optimization model. By applying several network reduction techniques there may
    occur some hydraulic differences between the original network model and the reduced
    network model. To make sure that the solution obtained in the optimization process
    is feasible in the original water supply system, the solution is verified by a
    hydraulic simulation tool.
author:
- first_name: Corinna
  full_name: Hallmann, Corinna
  last_name: Hallmann
citation:
  ama: Hallmann C. <i>An Approach for a Decision Support Systems to Optimize Water
    Tanks in Water Supply Systems by Combining Network Reduction, Optimization and
    Simulation</i>. Universität Paderborn; 2013.
  apa: Hallmann, C. (2013). <i>An Approach for a Decision Support Systems to optimize
    Water Tanks in Water Supply Systems by combining Network Reduction, Optimization
    and Simulation</i>. Universität Paderborn.
  bibtex: '@book{Hallmann_2013, title={An Approach for a Decision Support Systems
    to optimize Water Tanks in Water Supply Systems by combining Network Reduction,
    Optimization and Simulation}, publisher={Universität Paderborn}, author={Hallmann,
    Corinna}, year={2013} }'
  chicago: Hallmann, Corinna. <i>An Approach for a Decision Support Systems to Optimize
    Water Tanks in Water Supply Systems by Combining Network Reduction, Optimization
    and Simulation</i>. Universität Paderborn, 2013.
  ieee: C. Hallmann, <i>An Approach for a Decision Support Systems to optimize Water
    Tanks in Water Supply Systems by combining Network Reduction, Optimization and
    Simulation</i>. Universität Paderborn, 2013.
  mla: Hallmann, Corinna. <i>An Approach for a Decision Support Systems to Optimize
    Water Tanks in Water Supply Systems by Combining Network Reduction, Optimization
    and Simulation</i>. Universität Paderborn, 2013.
  short: C. Hallmann, An Approach for a Decision Support Systems to Optimize Water
    Tanks in Water Supply Systems by Combining Network Reduction, Optimization and
    Simulation, Universität Paderborn, 2013.
date_created: 2017-10-17T12:42:40Z
date_updated: 2022-01-06T07:01:59Z
ddc:
- '040'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-15T10:27:58Z
  date_updated: 2018-03-15T10:27:58Z
  file_id: '1283'
  file_name: 557-Hal13.pdf
  file_size: 271038
  relation: main_file
  success: 1
file_date_updated: 2018-03-15T10:27:58Z
has_accepted_license: '1'
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: An Approach for a Decision Support Systems to optimize Water Tanks in Water
  Supply Systems by combining Network Reduction, Optimization and Simulation
type: report
user_id: '15504'
year: '2013'
...
---
_id: '604'
author:
- first_name: Henrik
  full_name: Seier, Henrik
  last_name: Seier
citation:
  ama: Seier H. <i>Implementierung eines Branch-and-Bound-Algorithmus für nichtkonvexe
    gemischt-ganzzahlige Optimierungsprobleme mit quadratischen Nebenbedingungen</i>.
    Universität Paderborn; 2012.
  apa: Seier, H. (2012). <i>Implementierung eines Branch-and-Bound-Algorithmus für
    nichtkonvexe gemischt-ganzzahlige Optimierungsprobleme mit quadratischen Nebenbedingungen</i>.
    Universität Paderborn.
  bibtex: '@book{Seier_2012, title={Implementierung eines Branch-and-Bound-Algorithmus
    für nichtkonvexe gemischt-ganzzahlige Optimierungsprobleme mit quadratischen Nebenbedingungen},
    publisher={Universität Paderborn}, author={Seier, Henrik}, year={2012} }'
  chicago: Seier, Henrik. <i>Implementierung eines Branch-and-Bound-Algorithmus für
    nichtkonvexe gemischt-ganzzahlige Optimierungsprobleme mit quadratischen Nebenbedingungen</i>.
    Universität Paderborn, 2012.
  ieee: H. Seier, <i>Implementierung eines Branch-and-Bound-Algorithmus für nichtkonvexe
    gemischt-ganzzahlige Optimierungsprobleme mit quadratischen Nebenbedingungen</i>.
    Universität Paderborn, 2012.
  mla: Seier, Henrik. <i>Implementierung eines Branch-and-Bound-Algorithmus für nichtkonvexe
    gemischt-ganzzahlige Optimierungsprobleme mit quadratischen Nebenbedingungen</i>.
    Universität Paderborn, 2012.
  short: H. Seier, Implementierung eines Branch-and-Bound-Algorithmus für nichtkonvexe
    gemischt-ganzzahlige Optimierungsprobleme mit quadratischen Nebenbedingungen,
    Universität Paderborn, 2012.
date_created: 2017-10-17T12:42:49Z
date_updated: 2022-01-06T07:02:51Z
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: Implementierung eines Branch-and-Bound-Algorithmus für nichtkonvexe gemischt-ganzzahlige
  Optimierungsprobleme mit quadratischen Nebenbedingungen
type: mastersthesis
user_id: '477'
year: '2012'
...
---
_id: '605'
author:
- first_name: Florian
  full_name: Isenberg, Florian
  last_name: Isenberg
citation:
  ama: Isenberg F. <i>Implementierung eines adaptiven Verfahrens zur Linearisierung
    von nicht-konvexen, nichtlinearen Wassernetzmodellen mit Hilfe einer Fehlerabschätzung</i>.
    Universität Paderborn; 2012.
  apa: Isenberg, F. (2012). <i>Implementierung eines adaptiven Verfahrens zur Linearisierung
    von nicht-konvexen, nichtlinearen Wassernetzmodellen mit Hilfe einer Fehlerabschätzung</i>.
    Universität Paderborn.
  bibtex: '@book{Isenberg_2012, title={Implementierung eines adaptiven Verfahrens
    zur Linearisierung von nicht-konvexen, nichtlinearen Wassernetzmodellen mit Hilfe
    einer Fehlerabschätzung}, publisher={Universität Paderborn}, author={Isenberg,
    Florian}, year={2012} }'
  chicago: Isenberg, Florian. <i>Implementierung eines adaptiven Verfahrens zur Linearisierung
    von nicht-konvexen, nichtlinearen Wassernetzmodellen mit Hilfe einer Fehlerabschätzung</i>.
    Universität Paderborn, 2012.
  ieee: F. Isenberg, <i>Implementierung eines adaptiven Verfahrens zur Linearisierung
    von nicht-konvexen, nichtlinearen Wassernetzmodellen mit Hilfe einer Fehlerabschätzung</i>.
    Universität Paderborn, 2012.
  mla: Isenberg, Florian. <i>Implementierung eines adaptiven Verfahrens zur Linearisierung
    von nicht-konvexen, nichtlinearen Wassernetzmodellen mit Hilfe einer Fehlerabschätzung</i>.
    Universität Paderborn, 2012.
  short: F. Isenberg, Implementierung eines adaptiven Verfahrens zur Linearisierung
    von nicht-konvexen, nichtlinearen Wassernetzmodellen mit Hilfe einer Fehlerabschätzung,
    Universität Paderborn, 2012.
date_created: 2017-10-17T12:42:50Z
date_updated: 2022-01-06T07:02:51Z
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: Implementierung eines adaptiven Verfahrens zur Linearisierung von nicht-konvexen,
  nichtlinearen Wassernetzmodellen mit Hilfe einer Fehlerabschätzung
type: mastersthesis
user_id: '477'
year: '2012'
...
---
_id: '613'
author:
- first_name: Stefan
  full_name: Wohlfarth, Stefan
  last_name: Wohlfarth
citation:
  ama: Wohlfarth S. <i>Erweiterung von d3fact um die Domäne Wasserversorgung in Verbindung
    mit der Analyse und Implementierung eines hydraulischen Simulationsverfahrens</i>.
    Universität Paderborn; 2012.
  apa: Wohlfarth, S. (2012). <i>Erweiterung von d3fact um die Domäne Wasserversorgung
    in Verbindung mit der Analyse und Implementierung eines hydraulischen Simulationsverfahrens</i>.
    Universität Paderborn.
  bibtex: '@book{Wohlfarth_2012, title={Erweiterung von d3fact um die Domäne Wasserversorgung
    in Verbindung mit der Analyse und Implementierung eines hydraulischen Simulationsverfahrens},
    publisher={Universität Paderborn}, author={Wohlfarth, Stefan}, year={2012} }'
  chicago: Wohlfarth, Stefan. <i>Erweiterung von d3fact um die Domäne Wasserversorgung
    in Verbindung mit der Analyse und Implementierung eines hydraulischen Simulationsverfahrens</i>.
    Universität Paderborn, 2012.
  ieee: S. Wohlfarth, <i>Erweiterung von d3fact um die Domäne Wasserversorgung in
    Verbindung mit der Analyse und Implementierung eines hydraulischen Simulationsverfahrens</i>.
    Universität Paderborn, 2012.
  mla: Wohlfarth, Stefan. <i>Erweiterung von d3fact um die Domäne Wasserversorgung
    in Verbindung mit der Analyse und Implementierung eines hydraulischen Simulationsverfahrens</i>.
    Universität Paderborn, 2012.
  short: S. Wohlfarth, Erweiterung von d3fact um die Domäne Wasserversorgung in Verbindung
    mit der Analyse und Implementierung eines hydraulischen Simulationsverfahrens,
    Universität Paderborn, 2012.
date_created: 2017-10-17T12:42:51Z
date_updated: 2022-01-06T07:02:53Z
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: Erweiterung von d3fact um die Domäne Wasserversorgung in Verbindung mit der
  Analyse und Implementierung eines hydraulischen Simulationsverfahrens
type: mastersthesis
user_id: '477'
year: '2012'
...
---
_id: '633'
author:
- first_name: Daniel
  full_name: Pischel, Daniel
  last_name: Pischel
citation:
  ama: Pischel D. <i>Analyse, Konzeption und Implementierung von Aggregationsverfahren
    für Trinkwasserversorgungsnetze</i>. Universität Paderborn; 2012.
  apa: Pischel, D. (2012). <i>Analyse, Konzeption und Implementierung von Aggregationsverfahren
    für Trinkwasserversorgungsnetze</i>. Universität Paderborn.
  bibtex: '@book{Pischel_2012, title={Analyse, Konzeption und Implementierung von
    Aggregationsverfahren für Trinkwasserversorgungsnetze}, publisher={Universität
    Paderborn}, author={Pischel, Daniel}, year={2012} }'
  chicago: Pischel, Daniel. <i>Analyse, Konzeption und Implementierung von Aggregationsverfahren
    für Trinkwasserversorgungsnetze</i>. Universität Paderborn, 2012.
  ieee: D. Pischel, <i>Analyse, Konzeption und Implementierung von Aggregationsverfahren
    für Trinkwasserversorgungsnetze</i>. Universität Paderborn, 2012.
  mla: Pischel, Daniel. <i>Analyse, Konzeption und Implementierung von Aggregationsverfahren
    für Trinkwasserversorgungsnetze</i>. Universität Paderborn, 2012.
  short: D. Pischel, Analyse, Konzeption und Implementierung von Aggregationsverfahren
    für Trinkwasserversorgungsnetze, Universität Paderborn, 2012.
date_created: 2017-10-17T12:42:55Z
date_updated: 2022-01-06T07:03:01Z
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: Analyse, Konzeption und Implementierung von Aggregationsverfahren für Trinkwasserversorgungsnetze
type: mastersthesis
user_id: '477'
year: '2012'
...
---
_id: '635'
abstract:
- lang: eng
  text: In Germany, the optimization of water supply systems has gained more and more
    attention due to a growing cost pressure for German municipal utilities. In this
    work, a model is presented which optimizes the usage of water tanks. On the one
    hand locations of new tanks are identified, and on the other hand the size of
    existing tanks is optimized, subject to satisfying the demand of clients and providing
    the necessary amount of fire water during all time periods. The main difficulty
    is the consideration of the head loss equation which is required to model the
    hydraulic properties of a water supply system. As this equation is non-convex
    and quadratic the optimization model becomes a non-convex Mixed Integer Quadratically
    Constrained Program (MIQCP). To solve this MIQCP different solution methods are
    applied.
author:
- first_name: Corinna
  full_name: 'Dohle (married name: Hallmann) , Corinna'
  last_name: 'Dohle (married name: Hallmann) '
- first_name: Leena
  full_name: Suhl, Leena
  last_name: Suhl
citation:
  ama: 'Dohle (married name: Hallmann)  C, Suhl L. An Optimization Model for the optimal
    Usage of Water Tanks in Water Supply Systems. In: <i>Proceedings of the International
    Conference on Applied Mathematical Optimization and Modelling (APMOD)</i>. ; 2012:404-408.'
  apa: 'Dohle (married name: Hallmann) , C., &#38; Suhl, L. (2012). An Optimization
    Model for the optimal Usage of Water Tanks in Water Supply Systems. In <i>Proceedings
    of the International Conference on Applied Mathematical Optimization and Modelling
    (APMOD)</i> (pp. 404–408).'
  bibtex: '@inproceedings{Dohle (married name: Hallmann) _Suhl_2012, title={An Optimization
    Model for the optimal Usage of Water Tanks in Water Supply Systems}, booktitle={Proceedings
    of the International Conference on Applied Mathematical Optimization and Modelling
    (APMOD)}, author={Dohle (married name: Hallmann) , Corinna and Suhl, Leena}, year={2012},
    pages={404–408} }'
  chicago: 'Dohle (married name: Hallmann) , Corinna, and Leena Suhl. “An Optimization
    Model for the Optimal Usage of Water Tanks in Water Supply Systems.” In <i>Proceedings
    of the International Conference on Applied Mathematical Optimization and Modelling
    (APMOD)</i>, 404–8, 2012.'
  ieee: 'C. Dohle (married name: Hallmann)  and L. Suhl, “An Optimization Model for
    the optimal Usage of Water Tanks in Water Supply Systems,” in <i>Proceedings of
    the International Conference on Applied Mathematical Optimization and Modelling
    (APMOD)</i>, 2012, pp. 404–408.'
  mla: 'Dohle (married name: Hallmann) , Corinna, and Leena Suhl. “An Optimization
    Model for the Optimal Usage of Water Tanks in Water Supply Systems.” <i>Proceedings
    of the International Conference on Applied Mathematical Optimization and Modelling
    (APMOD)</i>, 2012, pp. 404–08.'
  short: 'C. Dohle (married name: Hallmann) , L. Suhl, in: Proceedings of the International
    Conference on Applied Mathematical Optimization and Modelling (APMOD), 2012, pp.
    404–408.'
date_created: 2017-10-17T12:42:55Z
date_updated: 2022-01-06T07:03:02Z
ddc:
- '040'
file:
- access_level: closed
  content_type: application/pdf
  creator: florida
  date_created: 2018-03-14T14:15:10Z
  date_updated: 2018-03-14T14:15:10Z
  file_id: '1233'
  file_name: 635-Dohle_Apmod_2012.pdf
  file_size: 164455
  relation: main_file
  success: 1
file_date_updated: 2018-03-14T14:15:10Z
has_accepted_license: '1'
page: 404-408
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publication: Proceedings of the International Conference on Applied Mathematical Optimization
  and Modelling (APMOD)
status: public
title: An Optimization Model for the optimal Usage of Water Tanks in Water Supply
  Systems
type: conference
user_id: '15504'
year: '2012'
...
---
_id: '566'
author:
- first_name: Ina
  full_name: Hilger, Ina
  last_name: Hilger
citation:
  ama: Hilger I. <i>Untersuchung von Modellen zur operativen Planung in Trinkwasserversorgungsnetzwerken</i>.
    Universität Paderborn; 2012.
  apa: Hilger, I. (2012). <i>Untersuchung von Modellen zur operativen Planung in Trinkwasserversorgungsnetzwerken</i>.
    Universität Paderborn.
  bibtex: '@book{Hilger_2012, title={Untersuchung von Modellen zur operativen Planung
    in Trinkwasserversorgungsnetzwerken}, publisher={Universität Paderborn}, author={Hilger,
    Ina}, year={2012} }'
  chicago: Hilger, Ina. <i>Untersuchung von Modellen zur operativen Planung in Trinkwasserversorgungsnetzwerken</i>.
    Universität Paderborn, 2012.
  ieee: I. Hilger, <i>Untersuchung von Modellen zur operativen Planung in Trinkwasserversorgungsnetzwerken</i>.
    Universität Paderborn, 2012.
  mla: Hilger, Ina. <i>Untersuchung von Modellen zur operativen Planung in Trinkwasserversorgungsnetzwerken</i>.
    Universität Paderborn, 2012.
  short: I. Hilger, Untersuchung von Modellen zur operativen Planung in Trinkwasserversorgungsnetzwerken,
    Universität Paderborn, 2012.
date_created: 2017-10-17T12:42:42Z
date_updated: 2022-01-06T07:02:22Z
language:
- iso: ger
project:
- _id: '1'
  name: SFB 901
- _id: '15'
  name: SFB 901 - Subprojekt C3
- _id: '4'
  name: SFB 901 - Project Area C
publisher: Universität Paderborn
status: public
title: Untersuchung von Modellen zur operativen Planung in Trinkwasserversorgungsnetzwerken
type: bachelorsthesis
user_id: '477'
year: '2012'
...