---
_id: '21811'
abstract:
- lang: eng
  text: 'In order to reduce the fuel consumption and consequently the greenhouse emissions,
    the automotive industry is implementing lightweight constructions in the body
    in white production. As a result, the use of aluminum alloys is continuously increasing.
    Due to poor weldability of aluminum in combination with other materials, mechanical
    joining technologies like clinching are increasingly used. In order to predict
    relevant characteristics of clinched joints and to ensure the reliability of the
    process, it is simulated numerically during product development processes. In
    this regard the predictive accuracy of the simulated process highly depends on
    the implemented friction model. In particular, the frictional behavior between
    the sheet metals affects the geometrical formation of the clinched joint significantly.
    This paper presents a testing method, which enables to determine the frictional
    coefficients between sheet metal materials for the simulation of clinching processes.
    For this purpose, the correlation of interface pressure and the relative velocity
    between aluminum sheets in clinching processes is investigated using numerical
    simulation. Furthermore, the developed testing method focuses on the specimen
    geometry as well as the reproduction of the occurring friction conditions between
    two sheet metal materials in clinching processes. Based on a methodical approach
    the test setup is explained and the functionality of the method is proven by experimental
    tests using sheet metal material EN AW6014. '
author:
- first_name: Moritz Sebastian
  full_name: Rossel, Moritz Sebastian
  id: '44503'
  last_name: Rossel
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- first_name: Christian Roman
  full_name: Bielak, Christian Roman
  id: '34782'
  last_name: Bielak
- first_name: Mathias
  full_name: Bobbert, Mathias
  id: '7850'
  last_name: Bobbert
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: 'Rossel MS, Böhnke M, Bielak CR, Bobbert M, Meschut G. Development of a Method
    for the Identification of Friction Coefficients in Sheet Metal Materials for the
    Numerical Simulation of Clinching Processes. In: <i>Sheet Metal 2021</i>. Vol
    883. Key Engineering Materials. Trans Tech Publications Ltd; 2021:81-88. doi:<a
    href="https://doi.org/10.4028/www.scientific.net/KEM.883.81">10.4028/www.scientific.net/KEM.883.81</a>'
  apa: Rossel, M. S., Böhnke, M., Bielak, C. R., Bobbert, M., &#38; Meschut, G. (2021).
    Development of a Method for the Identification of Friction Coefficients in Sheet
    Metal Materials for the Numerical Simulation of Clinching Processes. <i>Sheet
    Metal 2021</i>, <i>883</i>, 81–88. <a href="https://doi.org/10.4028/www.scientific.net/KEM.883.81">https://doi.org/10.4028/www.scientific.net/KEM.883.81</a>
  bibtex: '@inproceedings{Rossel_Böhnke_Bielak_Bobbert_Meschut_2021, series={Key Engineering
    Materials}, title={Development of a Method for the Identification of Friction
    Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching
    Processes}, volume={883}, DOI={<a href="https://doi.org/10.4028/www.scientific.net/KEM.883.81">10.4028/www.scientific.net/KEM.883.81</a>},
    booktitle={Sheet Metal 2021}, publisher={Trans Tech Publications Ltd}, author={Rossel,
    Moritz Sebastian and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias
    and Meschut, Gerson}, year={2021}, pages={81–88}, collection={Key Engineering
    Materials} }'
  chicago: Rossel, Moritz Sebastian, Max Böhnke, Christian Roman Bielak, Mathias Bobbert,
    and Gerson Meschut. “Development of a Method for the Identification of Friction
    Coefficients in Sheet Metal Materials for the Numerical Simulation of Clinching
    Processes.” In <i>Sheet Metal 2021</i>, 883:81–88. Key Engineering Materials.
    Trans Tech Publications Ltd, 2021. <a href="https://doi.org/10.4028/www.scientific.net/KEM.883.81">https://doi.org/10.4028/www.scientific.net/KEM.883.81</a>.
  ieee: 'M. S. Rossel, M. Böhnke, C. R. Bielak, M. Bobbert, and G. Meschut, “Development
    of a Method for the Identification of Friction Coefficients in Sheet Metal Materials
    for the Numerical Simulation of Clinching Processes,” in <i>Sheet Metal 2021</i>,
    2021, vol. 883, pp. 81–88, doi: <a href="https://doi.org/10.4028/www.scientific.net/KEM.883.81">10.4028/www.scientific.net/KEM.883.81</a>.'
  mla: Rossel, Moritz Sebastian, et al. “Development of a Method for the Identification
    of Friction Coefficients in Sheet Metal Materials for the Numerical Simulation
    of Clinching Processes.” <i>Sheet Metal 2021</i>, vol. 883, Trans Tech Publications
    Ltd, 2021, pp. 81–88, doi:<a href="https://doi.org/10.4028/www.scientific.net/KEM.883.81">10.4028/www.scientific.net/KEM.883.81</a>.
  short: 'M.S. Rossel, M. Böhnke, C.R. Bielak, M. Bobbert, G. Meschut, in: Sheet Metal
    2021, Trans Tech Publications Ltd, 2021, pp. 81–88.'
date_created: 2021-04-28T06:12:54Z
date_updated: 2024-03-11T08:15:08Z
department:
- _id: '157'
doi: 10.4028/www.scientific.net/KEM.883.81
intvolume: '       883'
keyword:
- Tribology
- Sheet Metal
- Simulation
language:
- iso: eng
page: 81-88
publication: Sheet Metal 2021
publication_status: published
publisher: Trans Tech Publications Ltd
quality_controlled: '1'
series_title: Key Engineering Materials
status: public
title: Development of a Method for the Identification of Friction Coefficients in
  Sheet Metal Materials for the Numerical Simulation of Clinching Processes
type: conference
user_id: '45779'
volume: 883
year: '2021'
...
---
_id: '37822'
article_number: '117182'
author:
- first_name: Daxin
  full_name: Han, Daxin
  id: '36544'
  last_name: Han
- first_name: Keke
  full_name: Yang, Keke
  id: '65085'
  last_name: Yang
  orcid: 0000-0001-9201-9304
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: Han D, Yang K, Meschut G. Mechanical joining of glass fibre reinforced polymer
    (GFRP) through an innovative solid self-piercing rivet. <i>Journal of Materials
    Processing Technology</i>. 2021;296. doi:<a href="https://doi.org/10.1016/j.jmatprotec.2021.117182">10.1016/j.jmatprotec.2021.117182</a>
  apa: Han, D., Yang, K., &#38; Meschut, G. (2021). Mechanical joining of glass fibre
    reinforced polymer (GFRP) through an innovative solid self-piercing rivet. <i>Journal
    of Materials Processing Technology</i>, <i>296</i>, Article 117182. <a href="https://doi.org/10.1016/j.jmatprotec.2021.117182">https://doi.org/10.1016/j.jmatprotec.2021.117182</a>
  bibtex: '@article{Han_Yang_Meschut_2021, title={Mechanical joining of glass fibre
    reinforced polymer (GFRP) through an innovative solid self-piercing rivet}, volume={296},
    DOI={<a href="https://doi.org/10.1016/j.jmatprotec.2021.117182">10.1016/j.jmatprotec.2021.117182</a>},
    number={117182}, journal={Journal of Materials Processing Technology}, publisher={Elsevier
    BV}, author={Han, Daxin and Yang, Keke and Meschut, Gerson}, year={2021} }'
  chicago: Han, Daxin, Keke Yang, and Gerson Meschut. “Mechanical Joining of Glass
    Fibre Reinforced Polymer (GFRP) through an Innovative Solid Self-Piercing Rivet.”
    <i>Journal of Materials Processing Technology</i> 296 (2021). <a href="https://doi.org/10.1016/j.jmatprotec.2021.117182">https://doi.org/10.1016/j.jmatprotec.2021.117182</a>.
  ieee: 'D. Han, K. Yang, and G. Meschut, “Mechanical joining of glass fibre reinforced
    polymer (GFRP) through an innovative solid self-piercing rivet,” <i>Journal of
    Materials Processing Technology</i>, vol. 296, Art. no. 117182, 2021, doi: <a
    href="https://doi.org/10.1016/j.jmatprotec.2021.117182">10.1016/j.jmatprotec.2021.117182</a>.'
  mla: Han, Daxin, et al. “Mechanical Joining of Glass Fibre Reinforced Polymer (GFRP)
    through an Innovative Solid Self-Piercing Rivet.” <i>Journal of Materials Processing
    Technology</i>, vol. 296, 117182, Elsevier BV, 2021, doi:<a href="https://doi.org/10.1016/j.jmatprotec.2021.117182">10.1016/j.jmatprotec.2021.117182</a>.
  short: D. Han, K. Yang, G. Meschut, Journal of Materials Processing Technology 296
    (2021).
date_created: 2023-01-21T10:32:47Z
date_updated: 2024-06-25T08:04:43Z
department:
- _id: '157'
doi: 10.1016/j.jmatprotec.2021.117182
intvolume: '       296'
keyword:
- Industrial and Manufacturing Engineering
- Metals and Alloys
- Computer Science Applications
- Modeling and Simulation
- Ceramics and Composites
language:
- iso: eng
publication: Journal of Materials Processing Technology
publication_identifier:
  issn:
  - 0924-0136
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Mechanical joining of glass fibre reinforced polymer (GFRP) through an innovative
  solid self-piercing rivet
type: journal_article
user_id: '65085'
volume: 296
year: '2021'
...
---
_id: '41510'
article_number: '106498'
author:
- first_name: Sudipta
  full_name: Pramanik, Sudipta
  last_name: Pramanik
- first_name: Anatolii
  full_name: Andreiev, Anatolii
  id: '50215'
  last_name: Andreiev
- first_name: Kay-Peter
  full_name: Hoyer, Kay-Peter
  id: '48411'
  last_name: Hoyer
- first_name: Mirko
  full_name: Schaper, Mirko
  id: '43720'
  last_name: Schaper
citation:
  ama: Pramanik S, Andreiev A, Hoyer K-P, Schaper M. Quasi in-situ analysis of fracture
    path during cyclic loading of double-edged U notched additively manufactured FeCo
    alloy. <i>International Journal of Fatigue</i>. 2021;153. doi:<a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">10.1016/j.ijfatigue.2021.106498</a>
  apa: Pramanik, S., Andreiev, A., Hoyer, K.-P., &#38; Schaper, M. (2021). Quasi in-situ
    analysis of fracture path during cyclic loading of double-edged U notched additively
    manufactured FeCo alloy. <i>International Journal of Fatigue</i>, <i>153</i>,
    Article 106498. <a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">https://doi.org/10.1016/j.ijfatigue.2021.106498</a>
  bibtex: '@article{Pramanik_Andreiev_Hoyer_Schaper_2021, title={Quasi in-situ analysis
    of fracture path during cyclic loading of double-edged U notched additively manufactured
    FeCo alloy}, volume={153}, DOI={<a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">10.1016/j.ijfatigue.2021.106498</a>},
    number={106498}, journal={International Journal of Fatigue}, publisher={Elsevier
    BV}, author={Pramanik, Sudipta and Andreiev, Anatolii and Hoyer, Kay-Peter and
    Schaper, Mirko}, year={2021} }'
  chicago: Pramanik, Sudipta, Anatolii Andreiev, Kay-Peter Hoyer, and Mirko Schaper.
    “Quasi In-Situ Analysis of Fracture Path during Cyclic Loading of Double-Edged
    U Notched Additively Manufactured FeCo Alloy.” <i>International Journal of Fatigue</i>
    153 (2021). <a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">https://doi.org/10.1016/j.ijfatigue.2021.106498</a>.
  ieee: 'S. Pramanik, A. Andreiev, K.-P. Hoyer, and M. Schaper, “Quasi in-situ analysis
    of fracture path during cyclic loading of double-edged U notched additively manufactured
    FeCo alloy,” <i>International Journal of Fatigue</i>, vol. 153, Art. no. 106498,
    2021, doi: <a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">10.1016/j.ijfatigue.2021.106498</a>.'
  mla: Pramanik, Sudipta, et al. “Quasi In-Situ Analysis of Fracture Path during Cyclic
    Loading of Double-Edged U Notched Additively Manufactured FeCo Alloy.” <i>International
    Journal of Fatigue</i>, vol. 153, 106498, Elsevier BV, 2021, doi:<a href="https://doi.org/10.1016/j.ijfatigue.2021.106498">10.1016/j.ijfatigue.2021.106498</a>.
  short: S. Pramanik, A. Andreiev, K.-P. Hoyer, M. Schaper, International Journal
    of Fatigue 153 (2021).
date_created: 2023-02-02T14:33:05Z
date_updated: 2023-06-01T14:35:13Z
department:
- _id: '9'
- _id: '158'
doi: 10.1016/j.ijfatigue.2021.106498
intvolume: '       153'
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
- Modeling and Simulation
language:
- iso: eng
publication: International Journal of Fatigue
publication_identifier:
  issn:
  - 0142-1123
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Quasi in-situ analysis of fracture path during cyclic loading of double-edged
  U notched additively manufactured FeCo alloy
type: journal_article
user_id: '43720'
volume: 153
year: '2021'
...
---
_id: '21436'
abstract:
- lang: eng
  text: Ultrasonic wire bonding is a solid-state joining process, used in the electronics
    industry to form electrical connections, e.g. to connect electrical terminals
    within semiconductor modules. Many process parameters affect the bond strength,
    such like the bond normal force, ultrasonic power, wire material and bonding frequency.
    Today, process design, development, and optimization is most likely based on the
    knowledge of process engineers and is mainly performed by experimental testing.
    In this contribution, a newly developed simulation tool is presented, to reduce
    time and costs and efficiently determine optimized process parameter. Based on
    a co-simulation of MATLAB and ANSYS, the different physical phenomena of the wire
    bonding process are considered using finite element simulation for the complex
    plastic deformation of the wire and reduced order models for the transient dynamics
    of the transducer, wire, substrate and bond formation. The model parameters such
    as the coefficients of friction between bond tool and wire and between wire and
    substrate were determined for aluminium and copper wire in experiments with a
    test rig specially developed for the requirements of heavy wire bonding. To reduce
    simulation time, for the finite element simulation a restart analysis and high
    performance computing is utilized. Detailed analysis of the bond formation showed,
    that the normal pressure distribution in the contact between wire and substrate
    has high impact on bond formation and distribution of welded areas in the contact
    area.
author:
- first_name: Reinhard
  full_name: Schemmel, Reinhard
  id: '28647'
  last_name: Schemmel
- first_name: Viktor
  full_name: Krieger, Viktor
  last_name: Krieger
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: Schemmel R, Krieger V, Hemsel T, Sextro W. Co-simulation of MATLAB and ANSYS
    for ultrasonic wire bonding process optimization. <i>Microelectronics Reliability</i>.
    2021;119:114077. doi:<a href="https://doi.org/10.1016/j.microrel.2021.114077">https://doi.org/10.1016/j.microrel.2021.114077</a>
  apa: Schemmel, R., Krieger, V., Hemsel, T., &#38; Sextro, W. (2021). Co-simulation
    of MATLAB and ANSYS for ultrasonic wire bonding process optimization. <i>Microelectronics
    Reliability</i>, <i>119</i>, 114077. <a href="https://doi.org/10.1016/j.microrel.2021.114077">https://doi.org/10.1016/j.microrel.2021.114077</a>
  bibtex: '@article{Schemmel_Krieger_Hemsel_Sextro_2021, title={Co-simulation of MATLAB
    and ANSYS for ultrasonic wire bonding process optimization}, volume={119}, DOI={<a
    href="https://doi.org/10.1016/j.microrel.2021.114077">https://doi.org/10.1016/j.microrel.2021.114077</a>},
    journal={Microelectronics Reliability}, author={Schemmel, Reinhard and Krieger,
    Viktor and Hemsel, Tobias and Sextro, Walter}, year={2021}, pages={114077} }'
  chicago: 'Schemmel, Reinhard, Viktor Krieger, Tobias Hemsel, and Walter Sextro.
    “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.”
    <i>Microelectronics Reliability</i> 119 (2021): 114077. <a href="https://doi.org/10.1016/j.microrel.2021.114077">https://doi.org/10.1016/j.microrel.2021.114077</a>.'
  ieee: 'R. Schemmel, V. Krieger, T. Hemsel, and W. Sextro, “Co-simulation of MATLAB
    and ANSYS for ultrasonic wire bonding process optimization,” <i>Microelectronics
    Reliability</i>, vol. 119, p. 114077, 2021, doi: <a href="https://doi.org/10.1016/j.microrel.2021.114077">https://doi.org/10.1016/j.microrel.2021.114077</a>.'
  mla: Schemmel, Reinhard, et al. “Co-Simulation of MATLAB and ANSYS for Ultrasonic
    Wire Bonding Process Optimization.” <i>Microelectronics Reliability</i>, vol.
    119, 2021, p. 114077, doi:<a href="https://doi.org/10.1016/j.microrel.2021.114077">https://doi.org/10.1016/j.microrel.2021.114077</a>.
  short: R. Schemmel, V. Krieger, T. Hemsel, W. Sextro, Microelectronics Reliability
    119 (2021) 114077.
date_created: 2021-03-10T09:37:02Z
date_updated: 2023-09-21T14:15:33Z
department:
- _id: '151'
doi: https://doi.org/10.1016/j.microrel.2021.114077
intvolume: '       119'
keyword:
- Ultrasonic heavy wire bonding
- Co-simulation
- ANSYS
- MATLAB
- Process optimization
- Friction coefficient
- Copper-copper
- Aluminium-copper
language:
- iso: eng
page: '114077'
publication: Microelectronics Reliability
publication_identifier:
  issn:
  - 0026-2714
publication_status: published
quality_controlled: '1'
status: public
title: Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization
type: journal_article
user_id: '210'
volume: 119
year: '2021'
...
---
_id: '23431'
abstract:
- lang: eng
  text: As an effective and accurate method for modelling composite materials, mean-field
    homogenization is still not well studied in modelling non-linear and damage behaviours
    of UD composites. Investigated micro FE-simulations show that the matrix of UD
    composites exhibits different average plastic behaviour, named as average asymmetric
    matrix plasticity (AAMP), when the composite behaves different under shear, longitudinal
    and transverse loadings. In this study, a non-linear mean-field debonding model
    (NMFDM) combining a mean-field model and a fibre–matrix interface debonding model,
    is developed to simulate UD composites under consideration of AAMP, fibre–matrix
    interface damage and progressive failure. AAMP is considered by using so-called
    stress mode factor, which is expressed in terms of basic invariants of the matrix
    deviatoric stress tensor and is used as an indicator for detection of differences
    in the loading mode. The material behaviour of UD composites with imperfect interface
    is assumed identical as for perfect interface and stiffness reduced fibres. Progressive
    failure criteria are established with consideration of fibre breakage and matrix
    crack for different fibre orientations. As a representative example for the NMFDM,
    a C30/E201 UD composite is studied. To verify the model, experiments are conducted
    on polymers, carbon fibres and UD CFRPs. Finally, the model is applied to simulate
    a perforated CFRP laminate, which shows excellent prediction ability on deformation,
    debonding and progressive failure.
article_number: '109209'
author:
- first_name: C.
  full_name: Cheng, C.
  last_name: Cheng
- first_name: Z.
  full_name: Wang, Z.
  last_name: Wang
- first_name: Z.
  full_name: Jin, Z.
  last_name: Jin
- first_name: X.
  full_name: Ju, X.
  last_name: Ju
- first_name: Swetlana
  full_name: Schweizer, Swetlana
  id: '8938'
  last_name: Schweizer
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
- first_name: Rolf
  full_name: Mahnken, Rolf
  id: '335'
  last_name: Mahnken
citation:
  ama: 'Cheng C, Wang Z, Jin Z, et al. Non-linear mean-field modelling of UD composite
    laminates accounting for average asymmetric plasticity of the matrix, debonding
    and progressive failure. <i>Composites Part B: Engineering</i>. 2021;224. doi:<a
    href="https://doi.org/10.1016/j.compositesb.2021.109209">10.1016/j.compositesb.2021.109209</a>'
  apa: 'Cheng, C., Wang, Z., Jin, Z., Ju, X., Schweizer, S., Tröster, T., &#38; Mahnken,
    R. (2021). Non-linear mean-field modelling of UD composite laminates accounting
    for average asymmetric plasticity of the matrix, debonding and progressive failure.
    <i>Composites Part B: Engineering</i>, <i>224</i>, Article 109209. <a href="https://doi.org/10.1016/j.compositesb.2021.109209">https://doi.org/10.1016/j.compositesb.2021.109209</a>'
  bibtex: '@article{Cheng_Wang_Jin_Ju_Schweizer_Tröster_Mahnken_2021, title={Non-linear
    mean-field modelling of UD composite laminates accounting for average asymmetric
    plasticity of the matrix, debonding and progressive failure}, volume={224}, DOI={<a
    href="https://doi.org/10.1016/j.compositesb.2021.109209">10.1016/j.compositesb.2021.109209</a>},
    number={109209}, journal={Composites Part B: Engineering}, author={Cheng, C. and
    Wang, Z. and Jin, Z. and Ju, X. and Schweizer, Swetlana and Tröster, Thomas and
    Mahnken, Rolf}, year={2021} }'
  chicago: 'Cheng, C., Z. Wang, Z. Jin, X. Ju, Swetlana Schweizer, Thomas Tröster,
    and Rolf Mahnken. “Non-Linear Mean-Field Modelling of UD Composite Laminates Accounting
    for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive Failure.”
    <i>Composites Part B: Engineering</i> 224 (2021). <a href="https://doi.org/10.1016/j.compositesb.2021.109209">https://doi.org/10.1016/j.compositesb.2021.109209</a>.'
  ieee: 'C. Cheng <i>et al.</i>, “Non-linear mean-field modelling of UD composite
    laminates accounting for average asymmetric plasticity of the matrix, debonding
    and progressive failure,” <i>Composites Part B: Engineering</i>, vol. 224, Art.
    no. 109209, 2021, doi: <a href="https://doi.org/10.1016/j.compositesb.2021.109209">10.1016/j.compositesb.2021.109209</a>.'
  mla: 'Cheng, C., et al. “Non-Linear Mean-Field Modelling of UD Composite Laminates
    Accounting for Average Asymmetric Plasticity of the Matrix, Debonding and Progressive
    Failure.” <i>Composites Part B: Engineering</i>, vol. 224, 109209, 2021, doi:<a
    href="https://doi.org/10.1016/j.compositesb.2021.109209">10.1016/j.compositesb.2021.109209</a>.'
  short: 'C. Cheng, Z. Wang, Z. Jin, X. Ju, S. Schweizer, T. Tröster, R. Mahnken,
    Composites Part B: Engineering 224 (2021).'
date_created: 2021-08-18T06:20:21Z
date_updated: 2025-06-06T08:08:32Z
department:
- _id: '9'
- _id: '154'
- _id: '321'
- _id: '149'
doi: 10.1016/j.compositesb.2021.109209
intvolume: '       224'
keyword:
- Non-linear mean-field homogenization Average asymmetric plasticity of matrix Fibre–matrix
  interface debonding Micro-mechanical FE-simulation Progressive failure
language:
- iso: eng
publication: 'Composites Part B: Engineering'
publication_identifier:
  issn:
  - 1359-8368
publication_status: published
quality_controlled: '1'
status: public
title: Non-linear mean-field modelling of UD composite laminates accounting for average
  asymmetric plasticity of the matrix, debonding and progressive failure
type: journal_article
user_id: '15952'
volume: 224
year: '2021'
...
---
_id: '24159'
abstract:
- lang: eng
  text: "The online fitting of a microscopic traffic simulation model to reconstruct
    the current state of a real traffic\r\narea can be challenging depending on the
    provided data. This paper presents a novel method based on limited\r\ndata from
    sensors positioned at specific locations and guarantees a general accordance of
    reality and\r\nsimulation in terms of multimodal road traffic counts and vehicle
    speeds. In these considerations, the actual\r\npurpose of research is of particular
    importance. Here, the research aims at improving the traffic flow by\r\ncontrolling
    the Traffic Light Systems (TLS) of the examined area which is why the current
    traffic state and\r\nthe route choices of individual road users are the matter
    of interest. An integer optimization problem is derived\r\nto fit the current
    simulation to the latest field measurements. The concept can be transferred to
    any road traffic\r\nnetwork and results in an observation of the current multimodal
    traffic state matching at the given sensor\r\nposition. First case studies show
    promosing results in terms of deviations between reality and simulation."
author:
- first_name: Kevin
  full_name: Malena, Kevin
  id: '36303'
  last_name: Malena
  orcid: 0000-0003-1183-4679
- first_name: Christopher
  full_name: Link, Christopher
  id: '38249'
  last_name: Link
- first_name: Sven
  full_name: Mertin, Sven
  id: '13195'
  last_name: Mertin
- first_name: Sandra
  full_name: Gausemeier, Sandra
  id: '17793'
  last_name: Gausemeier
- first_name: Ansgar
  full_name: Trächtler, Ansgar
  id: '552'
  last_name: Trächtler
citation:
  ama: 'Malena K, Link C, Mertin S, Gausemeier S, Trächtler A. Online State Estimation
    for Microscopic Traffic Simulations using Multiple Data Sources*. In: <i>VEHITS
    2021 Proceedings of the 7th International Conference on Vehicle Technology and
    Intelligent Transport Systems</i>. Vol 7. VEHITS 2021 Proceedings of the 7th International
    Conference on Vehicle Technology and Intelligent Transport Systems. SCITEPRESS;
    2021:386-395.'
  apa: Malena, K., Link, C., Mertin, S., Gausemeier, S., &#38; Trächtler, A. (2021).
    Online State Estimation for Microscopic Traffic Simulations using Multiple Data
    Sources*. <i>VEHITS 2021 Proceedings of the 7th International Conference on Vehicle
    Technology and Intelligent Transport Systems</i>, <i>7</i>, 386–395.
  bibtex: '@inproceedings{Malena_Link_Mertin_Gausemeier_Trächtler_2021, place={Portugal},
    series={VEHITS 2021 Proceedings of the 7th International Conference on Vehicle
    Technology and Intelligent Transport Systems}, title={Online State Estimation
    for Microscopic Traffic Simulations using Multiple Data Sources*}, volume={7},
    booktitle={VEHITS 2021 Proceedings of the 7th International Conference on Vehicle
    Technology and Intelligent Transport Systems}, publisher={SCITEPRESS}, author={Malena,
    Kevin and Link, Christopher and Mertin, Sven and Gausemeier, Sandra and Trächtler,
    Ansgar}, year={2021}, pages={386–395}, collection={VEHITS 2021 Proceedings of
    the 7th International Conference on Vehicle Technology and Intelligent Transport
    Systems} }'
  chicago: 'Malena, Kevin, Christopher Link, Sven Mertin, Sandra Gausemeier, and Ansgar
    Trächtler. “Online State Estimation for Microscopic Traffic Simulations Using
    Multiple Data Sources*.” In <i>VEHITS 2021 Proceedings of the 7th International
    Conference on Vehicle Technology and Intelligent Transport Systems</i>, 7:386–95.
    VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology
    and Intelligent Transport Systems. Portugal: SCITEPRESS, 2021.'
  ieee: K. Malena, C. Link, S. Mertin, S. Gausemeier, and A. Trächtler, “Online State
    Estimation for Microscopic Traffic Simulations using Multiple Data Sources*,”
    in <i>VEHITS 2021 Proceedings of the 7th International Conference on Vehicle Technology
    and Intelligent Transport Systems</i>, Online Streaming, 2021, vol. 7, pp. 386–395.
  mla: Malena, Kevin, et al. “Online State Estimation for Microscopic Traffic Simulations
    Using Multiple Data Sources*.” <i>VEHITS 2021 Proceedings of the 7th International
    Conference on Vehicle Technology and Intelligent Transport Systems</i>, vol. 7,
    SCITEPRESS, 2021, pp. 386–95.
  short: 'K. Malena, C. Link, S. Mertin, S. Gausemeier, A. Trächtler, in: VEHITS 2021
    Proceedings of the 7th International Conference on Vehicle Technology and Intelligent
    Transport Systems, SCITEPRESS, Portugal, 2021, pp. 386–395.'
conference:
  end_date: 2021-04-30
  location: Online Streaming
  name: 7th International Conference on Vehicle Technology and Intelligent Transport
    Systems
  start_date: 2021-04-28
date_created: 2021-09-10T12:19:14Z
date_updated: 2026-01-26T08:49:53Z
department:
- _id: '153'
intvolume: '         7'
keyword:
- Microscopic Traffic Simulation
- Online State Estimation
- Mixed Road Users
- Sensor Fusion
- Integer Programming
- Route Choice
- Vehicle2Infrastructure
language:
- iso: eng
main_file_link:
- url: https://www.scitepress.org/PublicationsDetail.aspx?ID=3xZWfOSENWk=&t=1
page: 386-395
place: Portugal
project:
- _id: '688'
  name: Pilotprojekt "Schlosskreuzung"
publication: VEHITS 2021 Proceedings of the 7th International Conference on Vehicle
  Technology and Intelligent Transport Systems
publication_identifier:
  isbn:
  - 978-989-758-513-5
publication_status: published
publisher: SCITEPRESS
quality_controlled: '1'
related_material:
  link:
  - relation: confirmation
    url: https://www.scitepress.org/PublicationsDetail.aspx?ID=3xZWfOSENWk=&t=1
  record:
  - id: '33849'
    relation: is_continued_by
    status: public
series_title: VEHITS 2021 Proceedings of the 7th International Conference on Vehicle
  Technology and Intelligent Transport Systems
status: public
title: Online State Estimation for Microscopic Traffic Simulations using Multiple
  Data Sources*
type: conference
user_id: '36303'
volume: 7
year: '2021'
...
---
_id: '21542'
abstract:
- lang: eng
  text: Using near-field (NF) scan data to predict the far-field (FF) behaviour of
    radiating electronic systems represents a novel method to accompany the whole
    RF design process. This approach involves so-called Huygens' box as an efficient
    radiation model inside an electromagnetic (EM) simulation tool and then transforms
    the scanned NF measured data into the FF. For this, the basic idea of the Huygens'box
    principle and the NF-to-FF transformation are briefly presented. The NF is measured
    on the Huygens' box around a device under test using anNF scanner, recording the
    magnitude and phase of the site-related magnetic and electric components. A comparison
    between a fullwave simulation and the measurement results shows a good similarity
    in both the NF and the simulated and transformed FF.Thus, this method is applicable
    to predict the FF behaviour of any electronic system by measuring the NF. With
    this knowledge, the RF design can be improved due to allowing a significant reduction
    of EM compatibility failure at the end of the development flow. In addition, the
    very efficient FF radiation model can be used for detailed investigations in various
    environments and the impact of such an equivalent radiation source on other electronic
    systems can be assessed.
author:
- first_name: Dominik
  full_name: Schröder, Dominik
  last_name: Schröder
- first_name: Sven
  full_name: Lange, Sven
  id: '38240'
  last_name: Lange
- first_name: Christian
  full_name: Hangmann, Christian
  last_name: Hangmann
- first_name: Christian
  full_name: Hedayat, Christian
  last_name: Hedayat
citation:
  ama: 'Schröder D, Lange S, Hangmann C, Hedayat C. Far-field prediction combining
    simulations with near-field measurements for EMI assessment of PCBs. In: <i>Tensorial
    Analysis of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis</i>.
    1st ed. Croyton, UK:  The Institution of Engineering and Technology (IET); 2020:315-346
    (32). doi:<a href="https://doi.org/10.1049/pbcs072e_ch14">10.1049/pbcs072e_ch14</a>'
  apa: 'Schröder, D., Lange, S., Hangmann, C., &#38; Hedayat, C. (2020). Far-field
    prediction combining simulations with near-field measurements for EMI assessment
    of PCBs. In <i>Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity
    and EMC Analysis</i> (1st ed., pp. 315-346 (32)). Croyton, UK:  The Institution
    of Engineering and Technology (IET). <a href="https://doi.org/10.1049/pbcs072e_ch14">https://doi.org/10.1049/pbcs072e_ch14</a>'
  bibtex: '@inbook{Schröder_Lange_Hangmann_Hedayat_2020, place={Croyton, UK}, edition={1},
    title={Far-field prediction combining simulations with near-field measurements
    for EMI assessment of PCBs}, DOI={<a href="https://doi.org/10.1049/pbcs072e_ch14">10.1049/pbcs072e_ch14</a>},
    booktitle={Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity
    and EMC Analysis}, publisher={ The Institution of Engineering and Technology (IET)},
    author={Schröder, Dominik and Lange, Sven and Hangmann, Christian and Hedayat,
    Christian}, year={2020}, pages={315-346 (32)} }'
  chicago: 'Schröder, Dominik, Sven Lange, Christian Hangmann, and Christian Hedayat.
    “Far-Field Prediction Combining Simulations with near-Field Measurements for EMI
    Assessment of PCBs.” In <i>Tensorial Analysis of Networks (TAN) Modelling for
    PCB Signal Integrity and EMC Analysis</i>, 1st ed., 315-346 (32). Croyton, UK:  The
    Institution of Engineering and Technology (IET), 2020. <a href="https://doi.org/10.1049/pbcs072e_ch14">https://doi.org/10.1049/pbcs072e_ch14</a>.'
  ieee: 'D. Schröder, S. Lange, C. Hangmann, and C. Hedayat, “Far-field prediction
    combining simulations with near-field measurements for EMI assessment of PCBs,”
    in <i>Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity
    and EMC Analysis</i>, 1st ed., Croyton, UK:  The Institution of Engineering and
    Technology (IET), 2020, pp. 315-346 (32).'
  mla: Schröder, Dominik, et al. “Far-Field Prediction Combining Simulations with
    near-Field Measurements for EMI Assessment of PCBs.” <i>Tensorial Analysis of
    Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis</i>, 1st ed.,  The
    Institution of Engineering and Technology (IET), 2020, pp. 315-346 (32), doi:<a
    href="https://doi.org/10.1049/pbcs072e_ch14">10.1049/pbcs072e_ch14</a>.
  short: 'D. Schröder, S. Lange, C. Hangmann, C. Hedayat, in: Tensorial Analysis
    of Networks (TAN) Modelling for PCB Signal Integrity and EMC Analysis, 1st ed.,  The
    Institution of Engineering and Technology (IET), Croyton, UK, 2020, pp. 315-346
    (32).'
date_created: 2021-03-18T13:49:49Z
date_updated: 2022-01-06T06:55:03Z
department:
- _id: '485'
doi: 10.1049/pbcs072e_ch14
edition: '1'
keyword:
- Huygens' box
- NF-to-FF transformation
- efficient FF radiation model
- FF behaviour
- EMI assessment
- PCB
- near-field measurements
- efficient radiation model
- far-field behaviour
- RF design process
- far-field prediction
- Huygens'box principle
- fullwave simulation
- electronic system radiation
- equivalent radiation source
- electromagnetic simulation tool
- near-field scan data
- EM compatibility failure reduction
language:
- iso: eng
main_file_link:
- url: https://digital-library.theiet.org/content/books/10.1049/pbcs072e_ch14
page: 315-346 (32)
place: Croyton, UK
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Tensorial Analysis of Networks (TAN) Modelling for PCB Signal Integrity
  and EMC Analysis
publication_identifier:
  isbn:
  - '9781839530494'
  - '9781839530500'
publication_status: published
publisher: ' The Institution of Engineering and Technology (IET)'
related_material:
  record:
  - id: '21542'
    relation: other
    status: public
status: public
title: Far-field prediction combining simulations with near-field measurements for
  EMI assessment of PCBs
type: book_chapter
user_id: '38240'
year: '2020'
...
---
_id: '20678'
author:
- first_name: Christian Roman
  full_name: Bielak, Christian Roman
  id: '34782'
  last_name: Bielak
- first_name: Max
  full_name: Böhnke, Max
  id: '45779'
  last_name: Böhnke
- first_name: Robert
  full_name: Beck, Robert
  id: '38279'
  last_name: Beck
- first_name: Mathias
  full_name: Bobbert, Mathias
  id: '7850'
  last_name: Bobbert
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: Bielak CR, Böhnke M, Beck R, Bobbert M, Meschut G. Numerical analysis of the
    robustness of clinching process considering the pre-forming of the parts . <i>Journal
    of Advanced Joining Processes </i>. Published online 2020. doi:<a href="https://doi.org/10.1016/j.jajp.2020.100038">https://doi.org/10.1016/j.jajp.2020.100038</a>
  apa: Bielak, C. R., Böhnke, M., Beck, R., Bobbert, M., &#38; Meschut, G. (2020).
    Numerical analysis of the robustness of clinching process considering the pre-forming
    of the parts . <i>Journal of Advanced Joining Processes. </i>. <a href="https://doi.org/10.1016/j.jajp.2020.100038">https://doi.org/10.1016/j.jajp.2020.100038</a>
  bibtex: '@article{Bielak_Böhnke_Beck_Bobbert_Meschut_2020, title={Numerical analysis
    of the robustness of clinching process considering the pre-forming of the parts
    }, DOI={<a href="https://doi.org/10.1016/j.jajp.2020.100038">https://doi.org/10.1016/j.jajp.2020.100038</a>},
    journal={Journal of Advanced Joining Processes. }, publisher={Elsevier}, author={Bielak,
    Christian Roman and Böhnke, Max and Beck, Robert and Bobbert, Mathias and Meschut,
    Gerson}, year={2020} }'
  chicago: Bielak, Christian Roman, Max Böhnke, Robert Beck, Mathias Bobbert, and
    Gerson Meschut. “Numerical Analysis of the Robustness of Clinching Process Considering
    the Pre-Forming of the Parts .” <i>Journal of Advanced Joining Processes. </i>,
    2020. <a href="https://doi.org/10.1016/j.jajp.2020.100038">https://doi.org/10.1016/j.jajp.2020.100038</a>.
  ieee: 'C. R. Bielak, M. Böhnke, R. Beck, M. Bobbert, and G. Meschut, “Numerical
    analysis of the robustness of clinching process considering the pre-forming of
    the parts ,” <i>Journal of Advanced Joining Processes. </i>, 2020, doi: <a href="https://doi.org/10.1016/j.jajp.2020.100038">https://doi.org/10.1016/j.jajp.2020.100038</a>.'
  mla: Bielak, Christian Roman, et al. “Numerical Analysis of the Robustness of Clinching
    Process Considering the Pre-Forming of the Parts .” <i>Journal of Advanced Joining
    Processes. </i>, Elsevier, 2020, doi:<a href="https://doi.org/10.1016/j.jajp.2020.100038">https://doi.org/10.1016/j.jajp.2020.100038</a>.
  short: C.R. Bielak, M. Böhnke, R. Beck, M. Bobbert, G. Meschut, Journal of Advanced
    Joining Processes.  (2020).
date_created: 2020-12-02T16:21:34Z
date_updated: 2022-03-24T09:39:11Z
department:
- _id: '157'
doi: https://doi.org/10.1016/j.jajp.2020.100038
keyword:
- Clinching
- process simulation
- FEM
- pre-straining
- sensitivity analysis
language:
- iso: eng
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
  name: 'TRR 285 – A01: TRR 285 - Subproject A01'
publication: 'Journal of Advanced Joining Processes. '
publication_identifier:
  unknown:
  - https://doi.org/10.1016/j.jajp.2020.100038
publication_status: published
publisher: Elsevier
status: public
title: 'Numerical analysis of the robustness of clinching process considering the
  pre-forming of the parts '
type: journal_article
user_id: '34782'
year: '2020'
...
---
_id: '19390'
abstract:
- lang: eng
  text: "Due to the strong reduction of PV prices, storage plays a dominating role
    in overall system costs. A \r\nsteeper elevation angle would result in a more
    balanced seasonal PV yield, at the cost of PV yield reductions during \r\nsummer,
    but allowing reduced storage capacities. Additionally, the effect of a single-axis
    tracking system has been \r\ninvestigated, generating more electricity during
    the morning and evening hours, thus reducing daily storage \r\nrequirements. The
    necessary PV size and storage capacities required for the German energy supply
    (1,500 TWh after \r\nelectrification of all sectors) via 100% renewable energies
    and a 50% solar share have been calculated via the \r\nHOMER Pro software, considering
    the bridging of periods of \"dark lulls“ in winter, using costs of 2030 (Table
    1). \r\nResults: The increase of module elevation angles above the typical 30°
    leads to a reduction of investment and supply \r\ncosts. The optimum is reached
    at a cost reduction of -1.5% for an elevation angle at the latitude of the installation
    \r\nsite. An explanation is that high elevation angles are favorable for clear
    winter days, but not at all for the critical days \r\nwith diffuse irradiance
    only, so the battery capacity must be increased. For the same reason, tracking
    systems do not \r\noffer any cost advantage (at least for the ones without an
    option for horizontal positioning during diffuse days)."
author:
- first_name: Stefan
  full_name: Krauter, Stefan
  id: '28836'
  last_name: Krauter
  orcid: 0000-0002-3594-260X
- first_name: D.
  full_name: Rustemovic, D.
  last_name: Rustemovic
- first_name: Arash
  full_name: Khatibi, Arash
  id: '43538'
  last_name: Khatibi
citation:
  ama: 'Krauter S, Rustemovic D, Khatibi A. Reduction of required storage capacities
    for a 100% renewable energy supply in Germany, if new PV systems are installed
    with east-west tracking systems at increased elevation angles. In: <i>Proceedings
    of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020</i>.
    ; 2020:1818-1819. doi:<a href="https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10">10.4229/EUPVSEC20202020-6BV.5.10</a>'
  apa: Krauter, S., Rustemovic, D., &#38; Khatibi, A. (2020). Reduction of required
    storage capacities for a 100% renewable energy supply in Germany, if new PV systems
    are installed with east-west tracking systems at increased elevation angles. <i>Proceedings
    of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020</i>,
    1818–1819. <a href="https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10">https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10</a>
  bibtex: '@inproceedings{Krauter_Rustemovic_Khatibi_2020, title={Reduction of required
    storage capacities for a 100% renewable energy supply in Germany, if new PV systems
    are installed with east-west tracking systems at increased elevation angles},
    DOI={<a href="https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10">10.4229/EUPVSEC20202020-6BV.5.10</a>},
    booktitle={Proceedings of the 37th European Photovoltaic Solar Energy Conference,
    07 - 11 September 2020}, author={Krauter, Stefan and Rustemovic, D. and Khatibi,
    Arash}, year={2020}, pages={1818–1819} }'
  chicago: Krauter, Stefan, D. Rustemovic, and Arash Khatibi. “Reduction of Required
    Storage Capacities for a 100% Renewable Energy Supply in Germany, If New PV Systems
    Are Installed with East-West Tracking Systems at Increased Elevation Angles.”
    In <i>Proceedings of the 37th European Photovoltaic Solar Energy Conference, 07
    - 11 September 2020</i>, 1818–19, 2020. <a href="https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10">https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10</a>.
  ieee: 'S. Krauter, D. Rustemovic, and A. Khatibi, “Reduction of required storage
    capacities for a 100% renewable energy supply in Germany, if new PV systems are
    installed with east-west tracking systems at increased elevation angles,” in <i>Proceedings
    of the 37th European Photovoltaic Solar Energy Conference, 07 - 11 September 2020</i>,
    online, 2020, pp. 1818–1819, doi: <a href="https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10">10.4229/EUPVSEC20202020-6BV.5.10</a>.'
  mla: Krauter, Stefan, et al. “Reduction of Required Storage Capacities for a 100%
    Renewable Energy Supply in Germany, If New PV Systems Are Installed with East-West
    Tracking Systems at Increased Elevation Angles.” <i>Proceedings of the 37th European
    Photovoltaic Solar Energy Conference, 07 - 11 September 2020</i>, 2020, pp. 1818–19,
    doi:<a href="https://doi.org/10.4229/EUPVSEC20202020-6BV.5.10">10.4229/EUPVSEC20202020-6BV.5.10</a>.
  short: 'S. Krauter, D. Rustemovic, A. Khatibi, in: Proceedings of the 37th European
    Photovoltaic Solar Energy Conference, 07 - 11 September 2020, 2020, pp. 1818–1819.'
conference:
  end_date: 2020-09-11
  location: online
  name: 37th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC
    2020)
  start_date: 2020-09-07
date_created: 2020-09-14T12:42:30Z
date_updated: 2022-01-06T13:43:51Z
ddc:
- '620'
department:
- _id: '53'
doi: 10.4229/EUPVSEC20202020-6BV.5.10
file:
- access_level: closed
  content_type: application/pdf
  creator: krauter
  date_created: 2022-01-06T13:41:20Z
  date_updated: 2022-01-06T13:41:20Z
  file_id: '29178'
  file_name: Krauter Rustemovic Khatibi - Elevated Angle - EUPVSEC 2020.pdf
  file_size: 428312
  relation: main_file
  success: 1
file_date_updated: 2022-01-06T13:41:20Z
has_accepted_license: '1'
keyword:
- Energy Storage
- PV system integration
- Large Grid-connected PV systems
- Simulation
- Energy Supply Options
language:
- iso: eng
page: 1818 - 1819
publication: Proceedings of the 37th European Photovoltaic Solar Energy Conference,
  07 - 11 September 2020
publication_identifier:
  isbn:
  - 3-936338-73-6
publication_status: published
quality_controlled: '1'
status: public
title: Reduction of required storage capacities for a 100% renewable energy supply
  in Germany, if new PV systems are installed with east-west tracking systems at increased
  elevation angles
type: conference
user_id: '28836'
year: '2020'
...
---
_id: '33263'
abstract:
- lang: eng
  text: Dynamical systems often admit geometric properties that must be taken into
    account when studying their behavior. We show that many such properties can be
    encoded by means of quiver representations. These properties include classical
    symmetry, hidden symmetry, and feedforward structure, as well as subnetwork and
    quotient relations in network dynamical systems. A quiver equivariant dynamical
    system consists of a collection of dynamical systems with maps between them that
    send solutions to solutions. We prove that such quiver structures are preserved
    under Lyapunov--Schmidt reduction, center manifold reduction, and normal form
    reduction.
author:
- first_name: Eddie
  full_name: Nijholt, Eddie
  last_name: Nijholt
- first_name: Bob W.
  full_name: Rink, Bob W.
  last_name: Rink
- first_name: Sören
  full_name: Schwenker, Sören
  id: '97359'
  last_name: Schwenker
  orcid: 0000-0002-8054-2058
citation:
  ama: Nijholt E, Rink BW, Schwenker S. Quiver Representations and Dimension Reduction
    in Dynamical Systems. <i>SIAM Journal on Applied Dynamical Systems</i>. 2020;19(4):2428-2468.
    doi:<a href="https://doi.org/10.1137/20m1345670">10.1137/20m1345670</a>
  apa: Nijholt, E., Rink, B. W., &#38; Schwenker, S. (2020). Quiver Representations
    and Dimension Reduction in Dynamical Systems. <i>SIAM Journal on Applied Dynamical
    Systems</i>, <i>19</i>(4), 2428–2468. <a href="https://doi.org/10.1137/20m1345670">https://doi.org/10.1137/20m1345670</a>
  bibtex: '@article{Nijholt_Rink_Schwenker_2020, title={Quiver Representations and
    Dimension Reduction in Dynamical Systems}, volume={19}, DOI={<a href="https://doi.org/10.1137/20m1345670">10.1137/20m1345670</a>},
    number={4}, journal={SIAM Journal on Applied Dynamical Systems}, publisher={Society
    for Industrial &#38; Applied Mathematics (SIAM)}, author={Nijholt, Eddie and Rink,
    Bob W. and Schwenker, Sören}, year={2020}, pages={2428–2468} }'
  chicago: 'Nijholt, Eddie, Bob W. Rink, and Sören Schwenker. “Quiver Representations
    and Dimension Reduction in Dynamical Systems.” <i>SIAM Journal on Applied Dynamical
    Systems</i> 19, no. 4 (2020): 2428–68. <a href="https://doi.org/10.1137/20m1345670">https://doi.org/10.1137/20m1345670</a>.'
  ieee: 'E. Nijholt, B. W. Rink, and S. Schwenker, “Quiver Representations and Dimension
    Reduction in Dynamical Systems,” <i>SIAM Journal on Applied Dynamical Systems</i>,
    vol. 19, no. 4, pp. 2428–2468, 2020, doi: <a href="https://doi.org/10.1137/20m1345670">10.1137/20m1345670</a>.'
  mla: Nijholt, Eddie, et al. “Quiver Representations and Dimension Reduction in Dynamical
    Systems.” <i>SIAM Journal on Applied Dynamical Systems</i>, vol. 19, no. 4, Society
    for Industrial &#38; Applied Mathematics (SIAM), 2020, pp. 2428–68, doi:<a href="https://doi.org/10.1137/20m1345670">10.1137/20m1345670</a>.
  short: E. Nijholt, B.W. Rink, S. Schwenker, SIAM Journal on Applied Dynamical Systems
    19 (2020) 2428–2468.
date_created: 2022-09-06T11:37:42Z
date_updated: 2022-09-07T08:36:03Z
doi: 10.1137/20m1345670
extern: '1'
external_id:
  arxiv:
  - '2006.08073'
intvolume: '        19'
issue: '4'
keyword:
- Modeling and Simulation
- Analysis
language:
- iso: eng
page: 2428-2468
publication: SIAM Journal on Applied Dynamical Systems
publication_identifier:
  issn:
  - 1536-0040
publication_status: published
publisher: Society for Industrial & Applied Mathematics (SIAM)
status: public
title: Quiver Representations and Dimension Reduction in Dynamical Systems
type: journal_article
user_id: '97359'
volume: 19
year: '2020'
...
---
_id: '34670'
author:
- first_name: Tobias
  full_name: Black, Tobias
  id: '23686'
  last_name: Black
  orcid: 0000-0001-9963-0800
citation:
  ama: Black T. Global generalized solutions to a forager–exploiter model with superlinear
    degradation and their eventual regularity properties. <i>Mathematical Models and
    Methods in Applied Sciences</i>. 2020;30(06):1075-1117. doi:<a href="https://doi.org/10.1142/s0218202520400072">10.1142/s0218202520400072</a>
  apa: Black, T. (2020). Global generalized solutions to a forager–exploiter model
    with superlinear degradation and their eventual regularity properties. <i>Mathematical
    Models and Methods in Applied Sciences</i>, <i>30</i>(06), 1075–1117. <a href="https://doi.org/10.1142/s0218202520400072">https://doi.org/10.1142/s0218202520400072</a>
  bibtex: '@article{Black_2020, title={Global generalized solutions to a forager–exploiter
    model with superlinear degradation and their eventual regularity properties},
    volume={30}, DOI={<a href="https://doi.org/10.1142/s0218202520400072">10.1142/s0218202520400072</a>},
    number={06}, journal={Mathematical Models and Methods in Applied Sciences}, publisher={World
    Scientific Pub Co Pte Lt}, author={Black, Tobias}, year={2020}, pages={1075–1117}
    }'
  chicago: 'Black, Tobias. “Global Generalized Solutions to a Forager–Exploiter Model
    with Superlinear Degradation and Their Eventual Regularity Properties.” <i>Mathematical
    Models and Methods in Applied Sciences</i> 30, no. 06 (2020): 1075–1117. <a href="https://doi.org/10.1142/s0218202520400072">https://doi.org/10.1142/s0218202520400072</a>.'
  ieee: 'T. Black, “Global generalized solutions to a forager–exploiter model with
    superlinear degradation and their eventual regularity properties,” <i>Mathematical
    Models and Methods in Applied Sciences</i>, vol. 30, no. 06, pp. 1075–1117, 2020,
    doi: <a href="https://doi.org/10.1142/s0218202520400072">10.1142/s0218202520400072</a>.'
  mla: Black, Tobias. “Global Generalized Solutions to a Forager–Exploiter Model with
    Superlinear Degradation and Their Eventual Regularity Properties.” <i>Mathematical
    Models and Methods in Applied Sciences</i>, vol. 30, no. 06, World Scientific
    Pub Co Pte Lt, 2020, pp. 1075–117, doi:<a href="https://doi.org/10.1142/s0218202520400072">10.1142/s0218202520400072</a>.
  short: T. Black, Mathematical Models and Methods in Applied Sciences 30 (2020) 1075–1117.
date_created: 2022-12-21T09:48:11Z
date_updated: 2023-07-10T11:39:59Z
department:
- _id: '34'
- _id: '10'
- _id: '90'
doi: 10.1142/s0218202520400072
intvolume: '        30'
issue: '06'
keyword:
- Applied Mathematics
- Modeling and Simulation
language:
- iso: eng
page: 1075-1117
publication: Mathematical Models and Methods in Applied Sciences
publication_identifier:
  issn:
  - 0218-2025
  - 1793-6314
publication_status: published
publisher: World Scientific Pub Co Pte Lt
status: public
title: Global generalized solutions to a forager–exploiter model with superlinear
  degradation and their eventual regularity properties
type: journal_article
user_id: '23686'
volume: 30
year: '2020'
...
---
_id: '15332'
abstract:
- lang: eng
  text: "Artificial intelligence (AI) has the potential for far-reaching – in our
    opinion – irreversible changes.\r\nThey range from effects on the individual and
    society to new societal and social issues. The question arises\r\nas to how students
    can learn the basic functioning of AI systems, what areas of life and society
    are affected\r\nby these and – most important – how their own lives are affected
    by these changes. Therefore, we are developing and evaluating school materials
    for the German ”Science Year AI”. It can be used for students of all\r\nschool
    types from the seventh grade upwards and will be distributed to about 2000 schools
    in autumn with\r\nthe support of the Federal Ministry of Education and Research.
    The material deals with the following aspects\r\nof AI: Discussing everyday experiences
    with AI, how does machine learning work, historical development\r\nof AI concepts,
    difference between man and machine, future distribution of roles between man and
    machine,\r\nin which AI world do we want to live and how much AI would we like
    to have in our lives. Through an\r\naccompanying evaluation, high quality of the
    technical content and didactic preparation is achieved in order\r\nto guarantee
    the long-term applicability in the teaching context in the different age groups
    and school types.\r\nIn this paper, we describe the current state of the material
    development, the challenges arising, and the results\r\nof tests with different
    classes to date. We also present first ideas for evaluating the results."
author:
- first_name: Michael
  full_name: Schlichtig, Michael
  id: '32312'
  last_name: Schlichtig
  orcid: 0000-0001-6600-6171
- first_name: Simone Anna
  full_name: Opel, Simone Anna
  id: '72932'
  last_name: Opel
- first_name: Lea
  full_name: Budde, Lea
  id: '32443'
  last_name: Budde
- first_name: Carsten
  full_name: Schulte, Carsten
  id: '60311'
  last_name: Schulte
citation:
  ama: 'Schlichtig M, Opel SA, Budde L, Schulte C. Understanding Artificial Intelligence
    – A Project for the Development of Comprehensive Teaching Material. In: Jasutė
    E, Pozdniakov S, eds. <i>ISSEP 2019 - 12th International Conference on Informatics
    in Schools: Situation, Evaluation and Perspectives, Local Proceedings</i>. Vol
    12. ; 2019:65-73.'
  apa: 'Schlichtig, M., Opel, S. A., Budde, L., &#38; Schulte, C. (2019). Understanding
    Artificial Intelligence – A Project for the Development of Comprehensive Teaching
    Material. In E. Jasutė &#38; S. Pozdniakov (Eds.), <i>ISSEP 2019 - 12th International
    conference on informatics in schools: Situation, evaluation and perspectives,
    Local Proceedings</i> (Vol. 12, pp. 65–73).'
  bibtex: '@inproceedings{Schlichtig_Opel_Budde_Schulte_2019, title={Understanding
    Artificial Intelligence – A Project for the Development of Comprehensive Teaching
    Material}, volume={12}, booktitle={ISSEP 2019 - 12th International conference
    on informatics in schools: Situation, evaluation and perspectives, Local Proceedings},
    author={Schlichtig, Michael and Opel, Simone Anna and Budde, Lea and Schulte,
    Carsten}, editor={Jasutė, Eglė and Pozdniakov, Sergei}, year={2019}, pages={65–73}
    }'
  chicago: 'Schlichtig, Michael, Simone Anna Opel, Lea Budde, and Carsten Schulte.
    “Understanding Artificial Intelligence – A Project for the Development of Comprehensive
    Teaching Material.” In <i>ISSEP 2019 - 12th International Conference on Informatics
    in Schools: Situation, Evaluation and Perspectives, Local Proceedings</i>, edited
    by Eglė Jasutė and Sergei Pozdniakov, 12:65–73, 2019.'
  ieee: 'M. Schlichtig, S. A. Opel, L. Budde, and C. Schulte, “Understanding Artificial
    Intelligence – A Project for the Development of Comprehensive Teaching Material,”
    in <i>ISSEP 2019 - 12th International conference on informatics in schools: Situation,
    evaluation and perspectives, Local Proceedings</i>, Lanarca, 2019, vol. 12, pp.
    65–73.'
  mla: 'Schlichtig, Michael, et al. “Understanding Artificial Intelligence – A Project
    for the Development of Comprehensive Teaching Material.” <i>ISSEP 2019 - 12th
    International Conference on Informatics in Schools: Situation, Evaluation and
    Perspectives, Local Proceedings</i>, edited by Eglė Jasutė and Sergei Pozdniakov,
    vol. 12, 2019, pp. 65–73.'
  short: 'M. Schlichtig, S.A. Opel, L. Budde, C. Schulte, in: E. Jasutė, S. Pozdniakov
    (Eds.), ISSEP 2019 - 12th International Conference on Informatics in Schools:
    Situation, Evaluation and Perspectives, Local Proceedings, 2019, pp. 65–73.'
conference:
  end_date: 2019-11-20
  location: Lanarca
  name: 'ISSEP 2019 - 12th International conference on informatics in schools: Situation,
    evaluation and perspectives'
  start_date: 2019-11-18
date_created: 2019-12-16T17:50:08Z
date_updated: 2022-07-26T11:41:41Z
department:
- _id: '67'
editor:
- first_name: Eglė
  full_name: Jasutė, Eglė
  last_name: Jasutė
- first_name: Sergei
  full_name: Pozdniakov, Sergei
  last_name: Pozdniakov
intvolume: '        12'
keyword:
- Artificial Intelligence
- Machine Learning
- Teaching Material
- Societal Aspects
- Ethics. Social Aspects
- Science Year
- Simulation Game
language:
- iso: eng
main_file_link:
- url: http://cyprusconferences.org/issep2019/wp-content/uploads/2019/10/LocalISSEP-v5.pdf
page: 65 - 73
publication: 'ISSEP 2019 - 12th International conference on informatics in schools:
  Situation, evaluation and perspectives, Local Proceedings'
publication_identifier:
  isbn:
  - 978-9925-553-27-3
publication_status: published
quality_controlled: '1'
status: public
title: Understanding Artificial Intelligence – A Project for the Development of Comprehensive
  Teaching Material
type: conference
user_id: '32312'
volume: 12
year: '2019'
...
---
_id: '10000'
abstract:
- lang: eng
  text: Ultraschall wird zur Effizienzsteigerung in verfahrenstechnischen Prozessen
    eingesetzt. Die Betriebsparamter der Ultraschallsysteme werden empirisch ermittelt,
    da derzeit keine systematische Analyse der Wechselwirkung zwischen Ultraschallwandler
    und Schallfeld sowie kein Verfahren zur Messung der Kavitationsaktivität ohne
    zusätzlichen Sensor existieren. Auf Basis einer experimentellen Analyse des betrachteten
    sonochemischen Reaktors wird ein Finite-Elemente-Modell aufgebaut, das die Wechselwirkung
    zwischen Schallfeld und Ultraschallwandler berücksichtigt. Die modellbasierte
    Analyse zeigt, dass wegen der akustischen Eigenschaften des Autoklavs nur direkt
    an der Sonotrode Kavitation entsteht. Die Wechselwirkung zwischen Ultraschallwandler
    und Schallfeld ermöglicht Aussagen über das Schallfeld und die Kavitationsaktivität
    auf Basis der Rückwirkung auf den Ultraschallwandler. Die lineare Schalldruckverteilung
    ermöglicht eine Prognose über die Verteilung von Kavitationszonen. Das beschriebene
    Modell liefert wertvolle Erkenntnisse für die Auslegung, Analyse und Skalierung
    sonochemischer Reaktoren. Auf Grund der rauen Prozessrandbedingungen ist die Applikation
    von Sensoren zur Überwachung der Kavitationsaktivität in vielen sonochemischen
    Prozessen nicht möglich. Zur prozessbegleitenden Messung der Kavitationsaktivität
    wird ein Verfahren entwickelt, das die Bewertung der Kavitationsaktivität durch
    Auswertung der Rückwirkung auf den Ultraschallwandler erlaubt. Das Messverfahren
    ermöglicht eine vorhersagbare und reproduzierbare Durchführung kavitationsbasierter
    Prozesse und stellt eine wichtige Erweiterung für bestehende und neue Ultraschallsysteme
    dar.
author:
- first_name: Peter
  full_name: Bornmann, Peter
  last_name: Bornmann
citation:
  ama: Bornmann P. <i>Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung
    Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen</i>.
    Shaker; 2019.
  apa: Bornmann, P. (2019). <i>Modellierung und experimentelle Charakterisierung der
    Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten
    Prozessen</i>. Shaker.
  bibtex: '@book{Bornmann_2019, title={Modellierung und experimentelle Charakterisierung
    der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten
    Prozessen}, publisher={Shaker}, author={Bornmann, Peter}, year={2019} }'
  chicago: Bornmann, Peter. <i>Modellierung Und Experimentelle Charakterisierung Der
    Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten
    Prozessen</i>. Shaker, 2019.
  ieee: P. Bornmann, <i>Modellierung und experimentelle Charakterisierung der Wechselwirkung
    zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen</i>.
    Shaker, 2019.
  mla: Bornmann, Peter. <i>Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung
    Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen</i>.
    Shaker, 2019.
  short: P. Bornmann, Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung
    Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen,
    Shaker, 2019.
date_created: 2019-05-27T10:29:53Z
date_updated: 2023-09-15T12:23:55Z
department:
- _id: '151'
keyword:
- Sonochemie
- Akustische Kavitation
- Kavitationsmessung
- Kavitationsdetektion
- FEM-Simulation Ultraschallwandler
- Prozessüberwachung
- FEM-Simulation Schallfeld
- Self-Sensing
- Piezoelektrische Ultraschallwandler
- Ultraschallreinigung
language:
- iso: eng
publisher: Shaker
status: public
title: Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen
  Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen
type: dissertation
user_id: '210'
year: '2019'
...
---
_id: '10598'
abstract:
- lang: eng
  text: "Approximate computing has become a very popular design\r\nstrategy that exploits
    error resilient computations to achieve higher\r\nperformance and energy efﬁciency.
    Automated synthesis of approximate\r\ncircuits is performed via functional approximation,
    in which various\r\nparts of the target circuit are extensively examined with
    a library\r\nof approximate components/transformations to trade off the functional\r\naccuracy
    and computational budget (i.e., power). However, as the number\r\nof possible
    approximate transformations increases, traditional search\r\ntechniques suffer
    from a combinatorial explosion due to the large\r\nbranching factor. In this work,
    we present a comprehensive framework\r\nfor automated synthesis of approximate
    circuits from either structural\r\nor behavioral descriptions. We adapt the Monte
    Carlo Tree Search\r\n(MCTS), as a stochastic search technique, to deal with the
    large design\r\nspace exploration, which enables a broader range of potential
    possible\r\napproximations through lightweight random simulations. The proposed\r\nframework
    is able to recognize the design Pareto set even with low\r\ncomputational budgets.
    Experimental results highlight the capabilities of\r\nthe proposed synthesis framework
    by resulting in up to 61.69% energy\r\nsaving while maintaining the predeﬁned
    quality constraints."
author:
- first_name: Muhammad
  full_name: Awais, Muhammad
  id: '64665'
  last_name: Awais
  orcid: https://orcid.org/0000-0003-4148-2969
- first_name: Hassan
  full_name: Ghasemzadeh Mohammadi, Hassan
  id: '61186'
  last_name: Ghasemzadeh Mohammadi
- first_name: Marco
  full_name: Platzner, Marco
  id: '398'
  last_name: Platzner
citation:
  ama: 'Awais M, Ghasemzadeh Mohammadi H, Platzner M. An MCTS-based Framework for
    Synthesis of Approximate Circuits. In: <i>26th IFIP/IEEE International Conference
    on Very Large Scale Integration (VLSI-SoC)</i>. ; 2018:219-224. doi:<a href="https://doi.org/10.1109/VLSI-SoC.2018.8645026">10.1109/VLSI-SoC.2018.8645026</a>'
  apa: Awais, M., Ghasemzadeh Mohammadi, H., &#38; Platzner, M. (2018). An MCTS-based
    Framework for Synthesis of Approximate Circuits. In <i>26th IFIP/IEEE International
    Conference on Very Large Scale Integration (VLSI-SoC)</i> (pp. 219–224). <a href="https://doi.org/10.1109/VLSI-SoC.2018.8645026">https://doi.org/10.1109/VLSI-SoC.2018.8645026</a>
  bibtex: '@inproceedings{Awais_Ghasemzadeh Mohammadi_Platzner_2018, title={An MCTS-based
    Framework for Synthesis of Approximate Circuits}, DOI={<a href="https://doi.org/10.1109/VLSI-SoC.2018.8645026">10.1109/VLSI-SoC.2018.8645026</a>},
    booktitle={26th IFIP/IEEE International Conference on Very Large Scale Integration
    (VLSI-SoC)}, author={Awais, Muhammad and Ghasemzadeh Mohammadi, Hassan and Platzner,
    Marco}, year={2018}, pages={219–224} }'
  chicago: Awais, Muhammad, Hassan Ghasemzadeh Mohammadi, and Marco Platzner. “An
    MCTS-Based Framework for Synthesis of Approximate Circuits.” In <i>26th IFIP/IEEE
    International Conference on Very Large Scale Integration (VLSI-SoC)</i>, 219–24,
    2018. <a href="https://doi.org/10.1109/VLSI-SoC.2018.8645026">https://doi.org/10.1109/VLSI-SoC.2018.8645026</a>.
  ieee: M. Awais, H. Ghasemzadeh Mohammadi, and M. Platzner, “An MCTS-based Framework
    for Synthesis of Approximate Circuits,” in <i>26th IFIP/IEEE International Conference
    on Very Large Scale Integration (VLSI-SoC)</i>, 2018, pp. 219–224.
  mla: Awais, Muhammad, et al. “An MCTS-Based Framework for Synthesis of Approximate
    Circuits.” <i>26th IFIP/IEEE International Conference on Very Large Scale Integration
    (VLSI-SoC)</i>, 2018, pp. 219–24, doi:<a href="https://doi.org/10.1109/VLSI-SoC.2018.8645026">10.1109/VLSI-SoC.2018.8645026</a>.
  short: 'M. Awais, H. Ghasemzadeh Mohammadi, M. Platzner, in: 26th IFIP/IEEE International
    Conference on Very Large Scale Integration (VLSI-SoC), 2018, pp. 219–224.'
date_created: 2019-07-10T09:21:38Z
date_updated: 2022-01-06T06:50:46Z
department:
- _id: '78'
doi: 10.1109/VLSI-SoC.2018.8645026
keyword:
- Approximate computing
- High-level synthesis
- Accuracy
- Monte-Carlo tree search
- Circuit simulation
language:
- iso: eng
page: 219-224
publication: 26th IFIP/IEEE International Conference on Very Large Scale Integration
  (VLSI-SoC)
status: public
title: An MCTS-based Framework for Synthesis of Approximate Circuits
type: conference
user_id: '64665'
year: '2018'
...
---
_id: '20868'
abstract:
- lang: eng
  text: 'This study proposes a simple theoretical framework that allows for assessing
    financial distress up to five years in advance. We jointly model financial distress
    by using two of its key driving factors: declining cash-generating ability and
    insufficient liquidity reserves. The model is based on stochastic processes and
    incorporates firm-level and industry-sector developments. A large-scale empirical
    implementation for US-listed firms over the period of 1980-2010 shows important
    improvements in the discriminatory accuracy and demonstrates incremental information
    content beyond state-of-the-art accounting and market-based prediction models.
    Consequently, this study might provide important ex ante warning signals for investors,
    regulators and practitioners.'
author:
- first_name: Sönke
  full_name: Sievers, Sönke
  id: '46447'
  last_name: Sievers
- first_name: Jan
  full_name: Klobucnik, Jan
  last_name: Klobucnik
- first_name: David
  full_name: Miersch, David
  last_name: Miersch
citation:
  ama: 'Sievers S, Klobucnik J, Miersch D. <i>Predicting Early Warning Signals of
    Financial Distress: Theory and Empirical Evidence</i>.; 2017. doi:<a href="https://doi.org/10.2139/ssrn.2237757">10.2139/ssrn.2237757</a>'
  apa: 'Sievers, S., Klobucnik, J., &#38; Miersch, D. (2017). <i>Predicting Early
    Warning Signals of Financial Distress: Theory and Empirical Evidence</i>. <a href="https://doi.org/10.2139/ssrn.2237757">https://doi.org/10.2139/ssrn.2237757</a>'
  bibtex: '@book{Sievers_Klobucnik_Miersch_2017, title={Predicting Early Warning Signals
    of Financial Distress: Theory and Empirical Evidence}, DOI={<a href="https://doi.org/10.2139/ssrn.2237757">10.2139/ssrn.2237757</a>},
    author={Sievers, Sönke and Klobucnik, Jan and Miersch, David}, year={2017} }'
  chicago: 'Sievers, Sönke, Jan Klobucnik, and David Miersch. <i>Predicting Early
    Warning Signals of Financial Distress: Theory and Empirical Evidence</i>, 2017.
    <a href="https://doi.org/10.2139/ssrn.2237757">https://doi.org/10.2139/ssrn.2237757</a>.'
  ieee: 'S. Sievers, J. Klobucnik, and D. Miersch, <i>Predicting Early Warning Signals
    of Financial Distress: Theory and Empirical Evidence</i>. 2017.'
  mla: 'Sievers, Sönke, et al. <i>Predicting Early Warning Signals of Financial Distress:
    Theory and Empirical Evidence</i>. 2017, doi:<a href="https://doi.org/10.2139/ssrn.2237757">10.2139/ssrn.2237757</a>.'
  short: 'S. Sievers, J. Klobucnik, D. Miersch, Predicting Early Warning Signals of
    Financial Distress: Theory and Empirical Evidence, 2017.'
date_created: 2021-01-05T11:44:45Z
date_updated: 2022-01-06T06:54:41Z
department:
- _id: '275'
doi: 10.2139/ssrn.2237757
jel:
- C63
- C52
- C53
- G33
- M41
keyword:
- Financial distress prediction
- probability of default
- accounting information
- stochastic processes
- simulation
language:
- iso: eng
main_file_link:
- url: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2237757
page: '84'
publication_status: published
status: public
title: 'Predicting Early Warning Signals of Financial Distress: Theory and Empirical
  Evidence'
type: working_paper
user_id: '46447'
year: '2017'
...
---
_id: '9972'
abstract:
- lang: eng
  text: The transportation of dry fine powders is an emerging technologic task, as
    in biotechnology, pharmaceu-tical and coatings industry the particle sizes of
    processed powders get smaller and smaller. Fine powdersare primarily defined by
    the fact that adhesive and cohesive forces outweigh the weight forces, leadingto
    mostly unwanted agglomeration (clumping) and adhesion to surfaces. Thereby it
    gets more difficult touse conventional conveyor systems (e.g. pneumatic or vibratory
    conveyors) for transport. A rather newmethod for transporting these fine powders
    is based on ultrasonic vibrations, which are used to reducefriction between powder
    and substrate. Within this contribution an experimental set-up consisting of apipe,
    a solenoid actuator for axial vibration and an annular piezoelectric actuator
    for the high frequencyradial vibration of the pipe is described. Since amplitudes
    of the radial pipe vibration should be as large aspossible to get high effects
    of friction reduction, the pipe is excited to vibrate in resonance. To determinethe
    optimum excitation frequency and actuator position the vibration modes and resonance
    frequenciesof the pipe are calculated and measured. Results are in good accordance.
author:
- first_name: Paul
  full_name: Dunst, Paul
  id: '22130'
  last_name: Dunst
- first_name: Tobias
  full_name: Hemsel, Tobias
  id: '210'
  last_name: Hemsel
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: Dunst P, Hemsel T, Sextro W. Analysis of pipe vibration in an ultrasonic powder
    transportationsystem. <i>elsevier</i>. 2017;Sensors and Actuators A 263:733-736.
  apa: Dunst, P., Hemsel, T., &#38; Sextro, W. (2017). Analysis of pipe vibration
    in an ultrasonic powder transportationsystem. <i>Elsevier</i>, <i>Sensors and
    Actuators A 263</i>, 733–736.
  bibtex: '@article{Dunst_Hemsel_Sextro_2017, title={Analysis of pipe vibration in
    an ultrasonic powder transportationsystem}, volume={Sensors and Actuators A 263},
    journal={elsevier}, author={Dunst, Paul and Hemsel, Tobias and Sextro, Walter},
    year={2017}, pages={733–736} }'
  chicago: 'Dunst, Paul, Tobias Hemsel, and Walter Sextro. “Analysis of Pipe Vibration
    in an Ultrasonic Powder Transportationsystem.” <i>Elsevier</i> Sensors and Actuators
    A 263 (2017): 733–36.'
  ieee: P. Dunst, T. Hemsel, and W. Sextro, “Analysis of pipe vibration in an ultrasonic
    powder transportationsystem,” <i>elsevier</i>, vol. Sensors and Actuators A 263,
    pp. 733–736, 2017.
  mla: Dunst, Paul, et al. “Analysis of Pipe Vibration in an Ultrasonic Powder Transportationsystem.”
    <i>Elsevier</i>, vol. Sensors and Actuators A 263, 2017, pp. 733–36.
  short: P. Dunst, T. Hemsel, W. Sextro, Elsevier Sensors and Actuators A 263 (2017)
    733–736.
date_created: 2019-05-27T09:31:13Z
date_updated: 2019-09-16T10:23:40Z
department:
- _id: '151'
keyword:
- Powder transport Piezoelectrics Ultrasonics Pipe vibration Finite element simulation
  Fine powder
language:
- iso: eng
page: 733-736
publication: elsevier
quality_controlled: '1'
status: public
title: Analysis of pipe vibration in an ultrasonic powder transportationsystem
type: journal_article
user_id: '55222'
volume: Sensors and Actuators A 263
year: '2017'
...
---
_id: '5199'
abstract:
- lang: eng
  text: 'This study proposes a simple theoretical framework that allows for assessing
    financial distress up to five years in advance. We jointly model financial distress
    by using two of its key driving factors: declining cash-generating ability and
    insufficient liquidity reserves. The model is based on stochastic processes and
    incorporates firm-level and industry-sector developments. A large-scale empirical
    implementation for US-listed firms over the period of 1980-2010 shows important
    improvements in the discriminatory accuracy and demonstrates incremental information
    content beyond state-of-the-art accounting and market-based prediction models.
    Consequently, this study might provide important ex ante warning signals for investors,
    regulators and practitioners. '
author:
- first_name: Jan
  full_name: Klobucnik, Jan
  last_name: Klobucnik
- first_name: David
  full_name: Miersch, David
  last_name: Miersch
- first_name: Sönke
  full_name: Sievers, Sönke
  last_name: Sievers
citation:
  ama: 'Klobucnik J, Miersch D, Sievers S. Predicting Early Warning Signals of Financial
    Distress: Theory and Empirical Evidence. <i>SSRN Electronic Journal</i>. 2017.'
  apa: 'Klobucnik, J., Miersch, D., &#38; Sievers, S. (2017). Predicting Early Warning
    Signals of Financial Distress: Theory and Empirical Evidence. <i>SSRN Electronic
    Journal</i>.'
  bibtex: '@article{Klobucnik_Miersch_Sievers_2017, title={Predicting Early Warning
    Signals of Financial Distress: Theory and Empirical Evidence}, journal={SSRN Electronic
    Journal}, author={Klobucnik, Jan and Miersch, David and Sievers, Sönke}, year={2017}
    }'
  chicago: 'Klobucnik, Jan, David Miersch, and Sönke Sievers. “Predicting Early Warning
    Signals of Financial Distress: Theory and Empirical Evidence.” <i>SSRN Electronic
    Journal</i>, 2017.'
  ieee: 'J. Klobucnik, D. Miersch, and S. Sievers, “Predicting Early Warning Signals
    of Financial Distress: Theory and Empirical Evidence,” <i>SSRN Electronic Journal</i>,
    2017.'
  mla: 'Klobucnik, Jan, et al. “Predicting Early Warning Signals of Financial Distress:
    Theory and Empirical Evidence.” <i>SSRN Electronic Journal</i>, 2017.'
  short: J. Klobucnik, D. Miersch, S. Sievers, SSRN Electronic Journal (2017).
date_created: 2018-10-31T12:19:42Z
date_updated: 2022-01-06T07:01:43Z
department:
- _id: '275'
jel:
- C63
- C52
- C53
- G33
- M41
keyword:
- Financial distress prediction
- probability of default
- accounting information
- stochastic processes
- simulation
language:
- iso: eng
publication: SSRN Electronic Journal
publication_status: published
status: public
title: 'Predicting Early Warning Signals of Financial Distress: Theory and Empirical
  Evidence'
type: journal_article
user_id: '64756'
year: '2017'
...
---
_id: '9955'
abstract:
- lang: eng
  text: Wire bonding has been an established packaging technology for decades. When
    introducing copper as wire material for high power applications, adaptations to
    the bonding process and to machines became necessary. Here, challenges occur due
    to the stiffer wire material and changing oxide layers on the contact partners.
    To achieve sufficient process stability, a clean bond area is required, which
    can only be achieved with high shear stresses in the contact partners surfaces.
    These necessitate high normal forces to plastically deform the wire and substrate.
    To achieve such high stresses in the contact area, the bonding tool needs to be
    able to transmit the needed tangential forces to the top side of the wire. The
    wire itself performs a shear movement and transmits the force into the contact
    area to clean the contaminant and oxide layers and to level the desired bond surfaces.
    The main function of the tool is to transmit these forces. If the bond tool can
    only transmit low forces in the direction of excitation, the parameter space for
    a stable bond process is severely restricted. Here, a modeling approach to estimate
    how well different tool shapes meet the demand of transmitting high tangential
    forces is presented. The model depends on wire deformation and thus on the ultrasonic
    softening effect.
author:
- first_name: Simon
  full_name: Althoff, Simon
  last_name: Althoff
- first_name: Tobias
  full_name: Meyer, Tobias
  last_name: Meyer
- first_name: Andreas
  full_name: Unger, Andreas
  last_name: Unger
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
- first_name: Florian
  full_name: Eacock, Florian
  last_name: Eacock
citation:
  ama: 'Althoff S, Meyer T, Unger A, Sextro W, Eacock F. Shape-Dependent Transmittable
    Tangential Force of Wire Bond Tools. In: <i>IEEE 66th Electronic Components and
    Technology Conference</i>. ; 2016:2103-2110. doi:<a href="https://doi.org/10.1109/ECTC.2016.234">10.1109/ECTC.2016.234</a>'
  apa: Althoff, S., Meyer, T., Unger, A., Sextro, W., &#38; Eacock, F. (2016). Shape-Dependent
    Transmittable Tangential Force of Wire Bond Tools. In <i>IEEE 66th Electronic
    Components and Technology Conference</i> (pp. 2103–2110). <a href="https://doi.org/10.1109/ECTC.2016.234">https://doi.org/10.1109/ECTC.2016.234</a>
  bibtex: '@inproceedings{Althoff_Meyer_Unger_Sextro_Eacock_2016, title={Shape-Dependent
    Transmittable Tangential Force of Wire Bond Tools}, DOI={<a href="https://doi.org/10.1109/ECTC.2016.234">10.1109/ECTC.2016.234</a>},
    booktitle={IEEE 66th Electronic Components and Technology Conference}, author={Althoff,
    Simon and Meyer, Tobias and Unger, Andreas and Sextro, Walter and Eacock, Florian},
    year={2016}, pages={2103–2110} }'
  chicago: Althoff, Simon, Tobias Meyer, Andreas Unger, Walter Sextro, and Florian
    Eacock. “Shape-Dependent Transmittable Tangential Force of Wire Bond Tools.” In
    <i>IEEE 66th Electronic Components and Technology Conference</i>, 2103–10, 2016.
    <a href="https://doi.org/10.1109/ECTC.2016.234">https://doi.org/10.1109/ECTC.2016.234</a>.
  ieee: S. Althoff, T. Meyer, A. Unger, W. Sextro, and F. Eacock, “Shape-Dependent
    Transmittable Tangential Force of Wire Bond Tools,” in <i>IEEE 66th Electronic
    Components and Technology Conference</i>, 2016, pp. 2103–2110.
  mla: Althoff, Simon, et al. “Shape-Dependent Transmittable Tangential Force of Wire
    Bond Tools.” <i>IEEE 66th Electronic Components and Technology Conference</i>,
    2016, pp. 2103–10, doi:<a href="https://doi.org/10.1109/ECTC.2016.234">10.1109/ECTC.2016.234</a>.
  short: 'S. Althoff, T. Meyer, A. Unger, W. Sextro, F. Eacock, in: IEEE 66th Electronic
    Components and Technology Conference, 2016, pp. 2103–2110.'
date_created: 2019-05-27T08:47:52Z
date_updated: 2020-05-07T05:33:52Z
department:
- _id: '151'
doi: 10.1109/ECTC.2016.234
keyword:
- finite element simulation
- wire bonding
- tool geometry
language:
- iso: eng
page: 2103-2110
project:
- _id: '92'
  grant_number: 02 PQ2210
  name: Intelligente Herstellung zuverlässiger Kupferbondverbindungen
publication: IEEE 66th Electronic Components and Technology Conference
quality_controlled: '1'
status: public
title: Shape-Dependent Transmittable Tangential Force of Wire Bond Tools
type: conference
user_id: '210'
year: '2016'
...
---
_id: '17659'
author:
- first_name: Gleb
  full_name: Polevoy, Gleb
  id: '83983'
  last_name: Polevoy
- first_name: Stojan
  full_name: Trajanovski, Stojan
  last_name: Trajanovski
- first_name: Mathijs M.
  full_name: de Weerdt, Mathijs M.
  last_name: de Weerdt
citation:
  ama: 'Polevoy G, Trajanovski S, de Weerdt MM. Nash Equilibria in Shared Effort Games.
    In: <i>Proceedings of the 2014 International Conference on Autonomous Agents and
    Multi-Agent Systems</i>. AAMAS ’14. Richland, SC: International Foundation for
    Autonomous Agents and Multiagent Systems; 2014:861-868.'
  apa: 'Polevoy, G., Trajanovski, S., &#38; de Weerdt, M. M. (2014). Nash Equilibria
    in Shared Effort Games. In <i>Proceedings of the 2014 International Conference
    on Autonomous Agents and Multi-agent Systems</i> (pp. 861–868). Richland, SC:
    International Foundation for Autonomous Agents and Multiagent Systems.'
  bibtex: '@inproceedings{Polevoy_Trajanovski_de Weerdt_2014, place={Richland, SC},
    series={AAMAS ’14}, title={Nash Equilibria in Shared Effort Games}, booktitle={Proceedings
    of the 2014 International Conference on Autonomous Agents and Multi-agent Systems},
    publisher={International Foundation for Autonomous Agents and Multiagent Systems},
    author={Polevoy, Gleb and Trajanovski, Stojan and de Weerdt, Mathijs M.}, year={2014},
    pages={861–868}, collection={AAMAS ’14} }'
  chicago: 'Polevoy, Gleb, Stojan Trajanovski, and Mathijs M. de Weerdt. “Nash Equilibria
    in Shared Effort Games.” In <i>Proceedings of the 2014 International Conference
    on Autonomous Agents and Multi-Agent Systems</i>, 861–68. AAMAS ’14. Richland,
    SC: International Foundation for Autonomous Agents and Multiagent Systems, 2014.'
  ieee: G. Polevoy, S. Trajanovski, and M. M. de Weerdt, “Nash Equilibria in Shared
    Effort Games,” in <i>Proceedings of the 2014 International Conference on Autonomous
    Agents and Multi-agent Systems</i>, 2014, pp. 861–868.
  mla: Polevoy, Gleb, et al. “Nash Equilibria in Shared Effort Games.” <i>Proceedings
    of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems</i>,
    International Foundation for Autonomous Agents and Multiagent Systems, 2014, pp.
    861–68.
  short: 'G. Polevoy, S. Trajanovski, M.M. de Weerdt, in: Proceedings of the 2014
    International Conference on Autonomous Agents and Multi-Agent Systems, International
    Foundation for Autonomous Agents and Multiagent Systems, Richland, SC, 2014, pp.
    861–868.'
date_created: 2020-08-06T15:21:26Z
date_updated: 2022-01-06T06:53:16Z
department:
- _id: '63'
- _id: '541'
extern: '1'
keyword:
- competition
- equilibrium
- market
- models
- shared effort games
- simulation
language:
- iso: eng
page: 861-868
place: Richland, SC
publication: Proceedings of the 2014 International Conference on Autonomous Agents
  and Multi-agent Systems
publication_identifier:
  isbn:
  - 978-1-4503-2738-1
publisher: International Foundation for Autonomous Agents and Multiagent Systems
series_title: AAMAS '14
status: public
title: Nash Equilibria in Shared Effort Games
type: conference
user_id: '83983'
year: '2014'
...
---
_id: '17661'
author:
- first_name: Thomas C.
  full_name: King, Thomas C.
  last_name: King
- first_name: Qingzhi
  full_name: Liu, Qingzhi
  last_name: Liu
- first_name: Gleb
  full_name: Polevoy, Gleb
  id: '83983'
  last_name: Polevoy
- first_name: Mathijs
  full_name: de Weerdt, Mathijs
  last_name: de Weerdt
- first_name: Virginia
  full_name: Dignum, Virginia
  last_name: Dignum
- first_name: M. Birna
  full_name: van Riemsdijk, M. Birna
  last_name: van Riemsdijk
- first_name: Martijn
  full_name: Warnier, Martijn
  last_name: Warnier
citation:
  ama: 'King TC, Liu Q, Polevoy G, et al. Request Driven Social Sensing. In: <i>Proceedings
    of the 2014 International Conference on Autonomous Agents and Multi-Agent Systems</i>.
    AAMAS ’14. Richland, SC: International Foundation for Autonomous Agents and Multiagent
    Systems; 2014:1651-1652.'
  apa: 'King, T. C., Liu, Q., Polevoy, G., de Weerdt, M., Dignum, V., van Riemsdijk,
    M. B., &#38; Warnier, M. (2014). Request Driven Social Sensing. In <i>Proceedings
    of the 2014 International Conference on Autonomous Agents and Multi-agent Systems</i>
    (pp. 1651–1652). Richland, SC: International Foundation for Autonomous Agents
    and Multiagent Systems.'
  bibtex: '@inproceedings{King_Liu_Polevoy_de Weerdt_Dignum_van Riemsdijk_Warnier_2014,
    place={Richland, SC}, series={AAMAS ’14}, title={Request Driven Social Sensing},
    booktitle={Proceedings of the 2014 International Conference on Autonomous Agents
    and Multi-agent Systems}, publisher={International Foundation for Autonomous Agents
    and Multiagent Systems}, author={King, Thomas C. and Liu, Qingzhi and Polevoy,
    Gleb and de Weerdt, Mathijs and Dignum, Virginia and van Riemsdijk, M. Birna and
    Warnier, Martijn}, year={2014}, pages={1651–1652}, collection={AAMAS ’14} }'
  chicago: 'King, Thomas C., Qingzhi Liu, Gleb Polevoy, Mathijs de Weerdt, Virginia
    Dignum, M. Birna van Riemsdijk, and Martijn Warnier. “Request Driven Social Sensing.”
    In <i>Proceedings of the 2014 International Conference on Autonomous Agents and
    Multi-Agent Systems</i>, 1651–52. AAMAS ’14. Richland, SC: International Foundation
    for Autonomous Agents and Multiagent Systems, 2014.'
  ieee: T. C. King <i>et al.</i>, “Request Driven Social Sensing,” in <i>Proceedings
    of the 2014 International Conference on Autonomous Agents and Multi-agent Systems</i>,
    2014, pp. 1651–1652.
  mla: King, Thomas C., et al. “Request Driven Social Sensing.” <i>Proceedings of
    the 2014 International Conference on Autonomous Agents and Multi-Agent Systems</i>,
    International Foundation for Autonomous Agents and Multiagent Systems, 2014, pp.
    1651–52.
  short: 'T.C. King, Q. Liu, G. Polevoy, M. de Weerdt, V. Dignum, M.B. van Riemsdijk,
    M. Warnier, in: Proceedings of the 2014 International Conference on Autonomous
    Agents and Multi-Agent Systems, International Foundation for Autonomous Agents
    and Multiagent Systems, Richland, SC, 2014, pp. 1651–1652.'
date_created: 2020-08-06T15:21:45Z
date_updated: 2022-01-06T06:53:16Z
department:
- _id: '63'
- _id: '541'
extern: '1'
keyword:
- crowd-sensing
- crowdsourcing
- data aggregation
- game theory
- norms
- reciprocation
- self interested agents
- simulation
language:
- iso: eng
page: 1651-1652
place: Richland, SC
publication: Proceedings of the 2014 International Conference on Autonomous Agents
  and Multi-agent Systems
publication_identifier:
  isbn:
  - 978-1-4503-2738-1
publisher: International Foundation for Autonomous Agents and Multiagent Systems
series_title: AAMAS '14
status: public
title: Request Driven Social Sensing
type: conference
user_id: '83983'
year: '2014'
...
