---
_id: '22881'
author:
- first_name: T. T. Nhung
  full_name: Nguyen, T. T. Nhung
  last_name: Nguyen
- first_name: T.
  full_name: Sollfrank, T.
  last_name: Sollfrank
- first_name: C.
  full_name: Tegenkamp, C.
  last_name: Tegenkamp
- first_name: E.
  full_name: Rauls, E.
  last_name: Rauls
- first_name: Uwe
  full_name: Gerstmann, Uwe
  id: '171'
  last_name: Gerstmann
  orcid: 0000-0002-4476-223X
citation:
  ama: Nguyen TTN, Sollfrank T, Tegenkamp C, Rauls E, Gerstmann U. Impact of screening
    and relaxation on weakly coupled two-dimensional heterostructures. <i>Physical
    Review B</i>. 2021;103:L201408. doi:<a href="https://doi.org/10.1103/physrevb.103.l201408">10.1103/physrevb.103.l201408</a>
  apa: Nguyen, T. T. N., Sollfrank, T., Tegenkamp, C., Rauls, E., &#38; Gerstmann,
    U. (2021). Impact of screening and relaxation on weakly coupled two-dimensional
    heterostructures. <i>Physical Review B</i>, <i>103</i>, L201408. <a href="https://doi.org/10.1103/physrevb.103.l201408">https://doi.org/10.1103/physrevb.103.l201408</a>
  bibtex: '@article{Nguyen_Sollfrank_Tegenkamp_Rauls_Gerstmann_2021, title={Impact
    of screening and relaxation on weakly coupled two-dimensional heterostructures},
    volume={103}, DOI={<a href="https://doi.org/10.1103/physrevb.103.l201408">10.1103/physrevb.103.l201408</a>},
    journal={Physical Review B}, author={Nguyen, T. T. Nhung and Sollfrank, T. and
    Tegenkamp, C. and Rauls, E. and Gerstmann, Uwe}, year={2021}, pages={L201408}
    }'
  chicago: 'Nguyen, T. T. Nhung, T. Sollfrank, C. Tegenkamp, E. Rauls, and Uwe Gerstmann.
    “Impact of Screening and Relaxation on Weakly Coupled Two-Dimensional Heterostructures.”
    <i>Physical Review B</i> 103 (2021): L201408. <a href="https://doi.org/10.1103/physrevb.103.l201408">https://doi.org/10.1103/physrevb.103.l201408</a>.'
  ieee: 'T. T. N. Nguyen, T. Sollfrank, C. Tegenkamp, E. Rauls, and U. Gerstmann,
    “Impact of screening and relaxation on weakly coupled two-dimensional heterostructures,”
    <i>Physical Review B</i>, vol. 103, p. L201408, 2021, doi: <a href="https://doi.org/10.1103/physrevb.103.l201408">10.1103/physrevb.103.l201408</a>.'
  mla: Nguyen, T. T. Nhung, et al. “Impact of Screening and Relaxation on Weakly Coupled
    Two-Dimensional Heterostructures.” <i>Physical Review B</i>, vol. 103, 2021, p.
    L201408, doi:<a href="https://doi.org/10.1103/physrevb.103.l201408">10.1103/physrevb.103.l201408</a>.
  short: T.T.N. Nguyen, T. Sollfrank, C. Tegenkamp, E. Rauls, U. Gerstmann, Physical
    Review B 103 (2021) L201408.
date_created: 2021-07-29T07:09:50Z
date_updated: 2023-04-21T11:24:45Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '790'
doi: 10.1103/physrevb.103.l201408
intvolume: '       103'
language:
- iso: eng
page: L201408
project:
- _id: '53'
  name: TRR 142
- _id: '55'
  name: TRR 142 - Project Area B
- _id: '69'
  name: TRR 142 - Subproject B4
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review B
publication_identifier:
  issn:
  - 2469-9950
  - 2469-9969
publication_status: published
status: public
title: Impact of screening and relaxation on weakly coupled two-dimensional heterostructures
type: journal_article
user_id: '171'
volume: 103
year: '2021'
...
---
_id: '21635'
abstract:
- lang: eng
  text: <jats:p>Modern forming processes often allow today the efficient production
    of complex parts. In order to increase the sustainability of forming processes
    it would be favorable if the forming of workpieces becomes possible using production
    waste. At the Chair of Forming and Machining Technology of the Paderborn University
    (LUF) research is presently conducted with the overall goal to produce workpieces
    directly from secondary aluminum (e.g., powder and chips). Therefore, friction-based
    forming processes like friction spinning (or cognate processes) are used due to
    their high efficiency. As a pre-step, the production of semi-finished parts was
    the subject of accorded research work at the LUF. Therefore, a friction-based
    hot extrusion process was used for the full recycling or rework of aluminum chips
    into profiles. Investigations of the recycled semi-finished products show that
    they are comparable to conventionally produced semi-finished products in terms
    of dimensional stability and shape accuracy. An analysis of the mechanical properties
    of hardness and tensile strength shows that a final product with good and homogeneously
    distributed properties can be produced. Furthermore, significant correlations
    to the friction spinning process could be found that are useful for the above-mentioned
    direct part production from secondary aluminum.</jats:p>
article_number: '663'
author:
- first_name: Thomas
  full_name: Borgert, Thomas
  id: '83141'
  last_name: Borgert
- first_name: Werner
  full_name: Homberg, Werner
  last_name: Homberg
citation:
  ama: Borgert T, Homberg W. Friction-Induced Recycling Process for User-Specific
    Semi-Finished Product Production. <i>Metals</i>. Published online 2021. doi:<a
    href="https://doi.org/10.3390/met11040663">10.3390/met11040663</a>
  apa: Borgert, T., &#38; Homberg, W. (2021). Friction-Induced Recycling Process for
    User-Specific Semi-Finished Product Production. <i>Metals</i>, Article 663. <a
    href="https://doi.org/10.3390/met11040663">https://doi.org/10.3390/met11040663</a>
  bibtex: '@article{Borgert_Homberg_2021, title={Friction-Induced Recycling Process
    for User-Specific Semi-Finished Product Production}, DOI={<a href="https://doi.org/10.3390/met11040663">10.3390/met11040663</a>},
    number={663}, journal={Metals}, author={Borgert, Thomas and Homberg, Werner},
    year={2021} }'
  chicago: Borgert, Thomas, and Werner Homberg. “Friction-Induced Recycling Process
    for User-Specific Semi-Finished Product Production.” <i>Metals</i>, 2021. <a href="https://doi.org/10.3390/met11040663">https://doi.org/10.3390/met11040663</a>.
  ieee: 'T. Borgert and W. Homberg, “Friction-Induced Recycling Process for User-Specific
    Semi-Finished Product Production,” <i>Metals</i>, Art. no. 663, 2021, doi: <a
    href="https://doi.org/10.3390/met11040663">10.3390/met11040663</a>.'
  mla: Borgert, Thomas, and Werner Homberg. “Friction-Induced Recycling Process for
    User-Specific Semi-Finished Product Production.” <i>Metals</i>, 663, 2021, doi:<a
    href="https://doi.org/10.3390/met11040663">10.3390/met11040663</a>.
  short: T. Borgert, W. Homberg, Metals (2021).
date_created: 2021-04-20T05:02:14Z
date_updated: 2023-04-26T13:25:52Z
department:
- _id: '156'
doi: 10.3390/met11040663
language:
- iso: eng
publication: Metals
publication_identifier:
  issn:
  - 2075-4701
publication_status: published
quality_controlled: '1'
status: public
title: Friction-Induced Recycling Process for User-Specific Semi-Finished Product
  Production
type: journal_article
user_id: '83141'
year: '2021'
...
---
_id: '23746'
author:
- first_name: Elmar
  full_name: Moritzer, Elmar
  id: '20531'
  last_name: Moritzer
- first_name: Felix
  full_name: Flachmann, Felix
  id: '38212'
  last_name: Flachmann
  orcid: 0000-0002-7651-7028
citation:
  ama: 'Moritzer E, Flachmann F. Influence of Chemical Blowing Agents on the Filling
    Behavior of Wood-Plastic-Composite Melts. In: <i>SPE ANTEC 2021: The Annual Technical
    Conference for Plastic Professionals</i>. ; 2021:536-540.'
  apa: 'Moritzer, E., &#38; Flachmann, F. (2021). Influence of Chemical Blowing Agents
    on the Filling Behavior of Wood-Plastic-Composite Melts. <i>SPE ANTEC 2021: The
    Annual Technical Conference for Plastic Professionals</i>, 536–540.'
  bibtex: '@inproceedings{Moritzer_Flachmann_2021, title={Influence of Chemical Blowing
    Agents on the Filling Behavior of Wood-Plastic-Composite Melts}, booktitle={SPE
    ANTEC 2021: The Annual Technical Conference for Plastic Professionals}, author={Moritzer,
    Elmar and Flachmann, Felix}, year={2021}, pages={536–540} }'
  chicago: 'Moritzer, Elmar, and Felix Flachmann. “Influence of Chemical Blowing Agents
    on the Filling Behavior of Wood-Plastic-Composite Melts.” In <i>SPE ANTEC 2021:
    The Annual Technical Conference for Plastic Professionals</i>, 536–40, 2021.'
  ieee: 'E. Moritzer and F. Flachmann, “Influence of Chemical Blowing Agents on the
    Filling Behavior of Wood-Plastic-Composite Melts,” in <i>SPE ANTEC 2021: The Annual
    Technical Conference for Plastic Professionals</i>, Online, 2021, pp. 536–540.'
  mla: 'Moritzer, Elmar, and Felix Flachmann. “Influence of Chemical Blowing Agents
    on the Filling Behavior of Wood-Plastic-Composite Melts.” <i>SPE ANTEC 2021: The
    Annual Technical Conference for Plastic Professionals</i>, 2021, pp. 536–40.'
  short: 'E. Moritzer, F. Flachmann, in: SPE ANTEC 2021: The Annual Technical Conference
    for Plastic Professionals, 2021, pp. 536–540.'
conference:
  end_date: 2021-05-14
  location: Online
  name: 'SPE ANTEC 2021: The Annual  Technical Conference for Plastic  Professionals '
  start_date: 2021-05-10
date_created: 2021-09-03T11:23:28Z
date_updated: 2023-04-26T13:39:14Z
department:
- _id: '321'
- _id: '9'
- _id: '367'
language:
- iso: eng
page: 536-540
publication: 'SPE ANTEC 2021: The Annual Technical Conference for Plastic Professionals'
publication_identifier:
  isbn:
  - 978-1-7138-3075-7
quality_controlled: '1'
status: public
title: Influence of Chemical Blowing Agents on the Filling Behavior of Wood-Plastic-Composite
  Melts
type: conference
user_id: '38212'
year: '2021'
...
---
_id: '23789'
author:
- first_name: Lukas
  full_name: Bolenz, Lukas
  id: '65478'
  last_name: Bolenz
- first_name: Thomas
  full_name: Ehlert, Thomas
  id: '47151'
  last_name: Ehlert
- first_name: Christopher
  full_name: Dechert, Christopher
  id: '69828'
  last_name: Dechert
- first_name: René
  full_name: Bertling, René
  id: '30050'
  last_name: Bertling
- first_name: Eugeny
  full_name: Kenig, Eugeny
  id: '665'
  last_name: Kenig
citation:
  ama: Bolenz L, Ehlert T, Dechert C, Bertling R, Kenig E. Modelling of a continuous
    distillation process with finite reflux ratio using the hydrodynamic analogy approach.
    <i>Chemical Engineering Research and Design</i>. Published online 2021:99-108.
    doi:<a href="https://doi.org/10.1016/j.cherd.2021.05.025">10.1016/j.cherd.2021.05.025</a>
  apa: Bolenz, L., Ehlert, T., Dechert, C., Bertling, R., &#38; Kenig, E. (2021).
    Modelling of a continuous distillation process with finite reflux ratio using
    the hydrodynamic analogy approach. <i>Chemical Engineering Research and Design</i>,
    99–108. <a href="https://doi.org/10.1016/j.cherd.2021.05.025">https://doi.org/10.1016/j.cherd.2021.05.025</a>
  bibtex: '@article{Bolenz_Ehlert_Dechert_Bertling_Kenig_2021, title={Modelling of
    a continuous distillation process with finite reflux ratio using the hydrodynamic
    analogy approach}, DOI={<a href="https://doi.org/10.1016/j.cherd.2021.05.025">10.1016/j.cherd.2021.05.025</a>},
    journal={Chemical Engineering Research and Design}, author={Bolenz, Lukas and
    Ehlert, Thomas and Dechert, Christopher and Bertling, René and Kenig, Eugeny},
    year={2021}, pages={99–108} }'
  chicago: Bolenz, Lukas, Thomas Ehlert, Christopher Dechert, René Bertling, and Eugeny
    Kenig. “Modelling of a Continuous Distillation Process with Finite Reflux Ratio
    Using the Hydrodynamic Analogy Approach.” <i>Chemical Engineering Research and
    Design</i>, 2021, 99–108. <a href="https://doi.org/10.1016/j.cherd.2021.05.025">https://doi.org/10.1016/j.cherd.2021.05.025</a>.
  ieee: 'L. Bolenz, T. Ehlert, C. Dechert, R. Bertling, and E. Kenig, “Modelling of
    a continuous distillation process with finite reflux ratio using the hydrodynamic
    analogy approach,” <i>Chemical Engineering Research and Design</i>, pp. 99–108,
    2021, doi: <a href="https://doi.org/10.1016/j.cherd.2021.05.025">10.1016/j.cherd.2021.05.025</a>.'
  mla: Bolenz, Lukas, et al. “Modelling of a Continuous Distillation Process with
    Finite Reflux Ratio Using the Hydrodynamic Analogy Approach.” <i>Chemical Engineering
    Research and Design</i>, 2021, pp. 99–108, doi:<a href="https://doi.org/10.1016/j.cherd.2021.05.025">10.1016/j.cherd.2021.05.025</a>.
  short: L. Bolenz, T. Ehlert, C. Dechert, R. Bertling, E. Kenig, Chemical Engineering
    Research and Design (2021) 99–108.
date_created: 2021-09-06T10:30:44Z
date_updated: 2023-04-27T06:28:16Z
department:
- _id: '145'
- _id: '9'
doi: 10.1016/j.cherd.2021.05.025
language:
- iso: eng
page: 99-108
publication: Chemical Engineering Research and Design
publication_identifier:
  issn:
  - 0263-8762
publication_status: published
quality_controlled: '1'
status: public
title: Modelling of a continuous distillation process with finite reflux ratio using
  the hydrodynamic analogy approach
type: journal_article
user_id: '69828'
year: '2021'
...
---
_id: '34222'
abstract:
- lang: eng
  text: Driven by the CO2-emission law by the European government and the increasing
    costs for raw materials as well as energy, the automotive industry is increasingly
    using multi-material constructions. This leads to a continuous increase in the
    use of mechanical joining techniques and especially the self-piercing riveting
    is of particular importance. The reason for this is the wide range of joining
    possibilities as well as the high load-bearing capacities of the joints. To be
    able to react to changing boundary conditions, like material thickness or strength
    variation of the sheets, research work is crucial with regard to the increase
    of versatility. In this paper, a numerical study of the influences on the selfpiercing
    riveting process is presented. For this purpose, the influence of different process
    parameters such as rivet length and die depth on various quality-relevant characteristics
    were investigated. With the help of the design of experiment, significant influences
    were determined and interactions between the individual parameters are shown.
author:
- first_name: Fabian
  full_name: Kappe, Fabian
  id: '66459'
  last_name: Kappe
- first_name: Christian Roman
  full_name: Bielak, Christian Roman
  id: '34782'
  last_name: Bielak
- first_name: Vadim
  full_name: Sartisson, Vadim
  last_name: Sartisson
- 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: 'Kappe F, Bielak CR, Sartisson V, Bobbert M, Meschut G. Influence of rivet
    length on joint formation on self-piercing riveting process considering further
    process parameters. In: <i>ESAFORM 2021</i>. University of Liege; 2021. doi:<a
    href="https://doi.org/10.25518/esaform21.4277">10.25518/esaform21.4277</a>'
  apa: Kappe, F., Bielak, C. R., Sartisson, V., Bobbert, M., &#38; Meschut, G. (2021).
    Influence of rivet length on joint formation on self-piercing riveting process
    considering further process parameters. <i>ESAFORM 2021</i>. <a href="https://doi.org/10.25518/esaform21.4277">https://doi.org/10.25518/esaform21.4277</a>
  bibtex: '@inproceedings{Kappe_Bielak_Sartisson_Bobbert_Meschut_2021, title={Influence
    of rivet length on joint formation on self-piercing riveting process considering
    further process parameters}, DOI={<a href="https://doi.org/10.25518/esaform21.4277">10.25518/esaform21.4277</a>},
    booktitle={ESAFORM 2021}, publisher={University of Liege}, author={Kappe, Fabian
    and Bielak, Christian Roman and Sartisson, Vadim and Bobbert, Mathias and Meschut,
    Gerson}, year={2021} }'
  chicago: Kappe, Fabian, Christian Roman Bielak, Vadim Sartisson, Mathias Bobbert,
    and Gerson Meschut. “Influence of rivet length on joint formation on self-piercing
    riveting process considering further process parameters.” In <i>ESAFORM 2021</i>.
    University of Liege, 2021. <a href="https://doi.org/10.25518/esaform21.4277">https://doi.org/10.25518/esaform21.4277</a>.
  ieee: 'F. Kappe, C. R. Bielak, V. Sartisson, M. Bobbert, and G. Meschut, “Influence
    of rivet length on joint formation on self-piercing riveting process considering
    further process parameters,” 2021, doi: <a href="https://doi.org/10.25518/esaform21.4277">10.25518/esaform21.4277</a>.'
  mla: Kappe, Fabian, et al. “Influence of rivet length on joint formation on self-piercing
    riveting process considering further process parameters.” <i>ESAFORM 2021</i>,
    University of Liege, 2021, doi:<a href="https://doi.org/10.25518/esaform21.4277">10.25518/esaform21.4277</a>.
  short: 'F. Kappe, C.R. Bielak, V. Sartisson, M. Bobbert, G. Meschut, in: ESAFORM
    2021, University of Liege, 2021.'
date_created: 2022-12-05T21:45:13Z
date_updated: 2023-04-27T08:52:48Z
department:
- _id: '630'
- _id: '157'
doi: 10.25518/esaform21.4277
language:
- iso: fre
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'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
  name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: ESAFORM 2021
publication_status: published
publisher: University of Liege
quality_controlled: '1'
status: public
title: Influence of rivet length on joint formation on self-piercing riveting process
  considering further process parameters
type: conference
user_id: '66459'
year: '2021'
...
---
_id: '30675'
abstract:
- lang: eng
  text: <jats:p>In many areas of product manufacturing constructions consist of individual
    components and metal sheets that are joined together to form complex structures.
    A simple and industrial common method for joining dissimilar and coated materials
    is clinching. During the joining process and due to the service load cracks can
    occur in the area of the joint, propagate due to cyclic loading and consequently
    lead to structural failure. For the prevention of these damage cases, first of
    all knowledge about the fracture mechanical material parameters regarding the
    original material state of the sheet metals used within the clinching process
    are essential.Within the scope of this paper experimental and numerical preliminary
    investigations regarding the fracture mechanical behavior of sheet metals used
    within the clinching process are presented. Due to the low thickness of 1.5 mm
    of the material sheets, the development of a new specimen is necessary to determine
    the crack growth rate curve including the fracture mechanical parameters like
    the threshold against crack growth ΔK<jats:sub>I,th</jats:sub> and the fracture
    toughness K<jats:sub>IC</jats:sub> of the base material HCT590X. For the experimental
    determination of the crack growth rate curve the numerical calculation of the
    geometry factor function as well as the calibration function of this special specimen
    are essential. After the experimental validation of the numerically determined
    calibration function, crack growth rate curves are determined for the stress ratios
    <jats:italic>R</jats:italic> = 0.1 and <jats:italic>R</jats:italic> = 0.3 to examine
    the mean stress sensitivity. In addition, the different rolling directions of
    0° and 90° in relation to the initial crack are taken into account in order to
    investigate the influence of the anisotropy due to rolling.</jats:p>
author:
- first_name: Deborah
  full_name: Weiß, Deborah
  id: '45673'
  last_name: Weiß
- first_name: Britta
  full_name: Schramm, Britta
  id: '4668'
  last_name: Schramm
- first_name: Gunter
  full_name: Kullmer, Gunter
  id: '291'
  last_name: Kullmer
citation:
  ama: 'Weiß D, Schramm B, Kullmer G. Numerical and Experimental Fracture Mechanical
    Investigations of Clinchable Sheet Metals Made of HCT590X. In: <i>Key Engineering
    Materials</i>. Vol 883. Trans Tech Publications, Ltd.; 2021:127-132. doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>'
  apa: Weiß, D., Schramm, B., &#38; Kullmer, G. (2021). Numerical and Experimental
    Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X.
    <i>Key Engineering Materials</i>, <i>883</i>, 127–132. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">https://doi.org/10.4028/www.scientific.net/kem.883.127</a>
  bibtex: '@inproceedings{Weiß_Schramm_Kullmer_2021, title={Numerical and Experimental
    Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X},
    volume={883}, DOI={<a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>},
    booktitle={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.},
    author={Weiß, Deborah and Schramm, Britta and Kullmer, Gunter}, year={2021}, pages={127–132}
    }'
  chicago: Weiß, Deborah, Britta Schramm, and Gunter Kullmer. “Numerical and Experimental
    Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X.”
    In <i>Key Engineering Materials</i>, 883:127–32. Trans Tech Publications, Ltd.,
    2021. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">https://doi.org/10.4028/www.scientific.net/kem.883.127</a>.
  ieee: 'D. Weiß, B. Schramm, and G. Kullmer, “Numerical and Experimental Fracture
    Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X,” in <i>Key
    Engineering Materials</i>, online, 2021, vol. 883, pp. 127–132, doi: <a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>.'
  mla: Weiß, Deborah, et al. “Numerical and Experimental Fracture Mechanical Investigations
    of Clinchable Sheet Metals Made of HCT590X.” <i>Key Engineering Materials</i>,
    vol. 883, Trans Tech Publications, Ltd., 2021, pp. 127–32, doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>.
  short: 'D. Weiß, B. Schramm, G. Kullmer, in: Key Engineering Materials, Trans Tech
    Publications, Ltd., 2021, pp. 127–132.'
conference:
  end_date: 2021-03-31
  location: online
  name: 19th International Conference on Sheet Metal
  start_date: 2021-03-29
date_created: 2022-03-29T08:09:01Z
date_updated: 2023-04-27T10:13:19Z
department:
- _id: '143'
doi: 10.4028/www.scientific.net/kem.883.127
intvolume: '       883'
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
page: 127-132
publication: Key Engineering Materials
publication_identifier:
  issn:
  - 1662-9795
publication_status: published
publisher: Trans Tech Publications, Ltd.
quality_controlled: '1'
status: public
title: Numerical and Experimental Fracture Mechanical Investigations of Clinchable
  Sheet Metals Made of HCT590X
type: conference
user_id: '45673'
volume: 883
year: '2021'
...
---
_id: '30674'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>In addition to the classical strength
    calculation, it is important to design components with regard to fracture mechanics
    because defects and cracks in a component can drastically influence its strength
    or fatigue behavior. Cracks can propagate due to operational loads and consequently
    lead to component failure. The fracture mechanical analysis provides information
    on stable or unstable crack growth as well as about the direction and the growth
    rate of a crack. For this purpose, sufficient information has to be available
    about the crack location, the crack length, the component geometry, the component
    loading and the fracture mechanical material parameters. The fracture mechanical
    properties are determined experimentally with standardized specimens as defined
    by the guidelines of the American Society for Testing and Materials. In practice,
    however, especially in the context with damage cases or formed material fracture
    mechanical parameters directly for a component are of interest. However, standard
    specimens often cannot be extracted at all due to the complexity of the component
    geometry. Therefore, the development of special specimens is required whereby
    certain arrangements have to be made in advance. These arrangements are presented
    in the present paper in order to contribute to a holistic investigation chain
    for the experimental determination of fracture mechanical material parameters
    with special specimens.</jats:p>
author:
- first_name: Deborah
  full_name: Weiß, Deborah
  id: '45673'
  last_name: Weiß
- first_name: Britta
  full_name: Schramm, Britta
  id: '4668'
  last_name: Schramm
- first_name: Gunter
  full_name: Kullmer, Gunter
  id: '291'
  last_name: Kullmer
citation:
  ama: Weiß D, Schramm B, Kullmer G. Holistic investigation chain for the experimental
    determination of fracture mechanical material parameters with special specimens.
    <i>Production Engineering</i>. Published online 2021. doi:<a href="https://doi.org/10.1007/s11740-021-01096-6">10.1007/s11740-021-01096-6</a>
  apa: Weiß, D., Schramm, B., &#38; Kullmer, G. (2021). Holistic investigation chain
    for the experimental determination of fracture mechanical material parameters
    with special specimens. <i>Production Engineering</i>. <a href="https://doi.org/10.1007/s11740-021-01096-6">https://doi.org/10.1007/s11740-021-01096-6</a>
  bibtex: '@article{Weiß_Schramm_Kullmer_2021, title={Holistic investigation chain
    for the experimental determination of fracture mechanical material parameters
    with special specimens}, DOI={<a href="https://doi.org/10.1007/s11740-021-01096-6">10.1007/s11740-021-01096-6</a>},
    journal={Production Engineering}, publisher={Springer Science and Business Media
    LLC}, author={Weiß, Deborah and Schramm, Britta and Kullmer, Gunter}, year={2021}
    }'
  chicago: Weiß, Deborah, Britta Schramm, and Gunter Kullmer. “Holistic Investigation
    Chain for the Experimental Determination of Fracture Mechanical Material Parameters
    with Special Specimens.” <i>Production Engineering</i>, 2021. <a href="https://doi.org/10.1007/s11740-021-01096-6">https://doi.org/10.1007/s11740-021-01096-6</a>.
  ieee: 'D. Weiß, B. Schramm, and G. Kullmer, “Holistic investigation chain for the
    experimental determination of fracture mechanical material parameters with special
    specimens,” <i>Production Engineering</i>, 2021, doi: <a href="https://doi.org/10.1007/s11740-021-01096-6">10.1007/s11740-021-01096-6</a>.'
  mla: Weiß, Deborah, et al. “Holistic Investigation Chain for the Experimental Determination
    of Fracture Mechanical Material Parameters with Special Specimens.” <i>Production
    Engineering</i>, Springer Science and Business Media LLC, 2021, doi:<a href="https://doi.org/10.1007/s11740-021-01096-6">10.1007/s11740-021-01096-6</a>.
  short: D. Weiß, B. Schramm, G. Kullmer, Production Engineering (2021).
date_created: 2022-03-29T08:05:02Z
date_updated: 2023-04-27T10:14:53Z
department:
- _id: '143'
doi: 10.1007/s11740-021-01096-6
keyword:
- Industrial and Manufacturing Engineering
- Mechanical Engineering
language:
- iso: eng
publication: Production Engineering
publication_identifier:
  issn:
  - 0944-6524
  - 1863-7353
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Holistic investigation chain for the experimental determination of fracture
  mechanical material parameters with special specimens
type: journal_article
user_id: '45673'
year: '2021'
...
---
_id: '25894'
abstract:
- lang: eng
  text: Powder X-ray diffraction (XRD) patterns of ordered mesoporous CMK-8 and CMK-9
    carbon materials are simulated by geometric modeling. The materials are amorphous
    at the atomic length scale but exhibit highly symmetric gyroidal structures at
    the nanometer scale, corresponding to regular, continuous nanopore systems with
    cubic symmetry. Their structures lead to characteristic low-angle XRD signatures.
    We introduce a model based on geometrical considerations to simulate CMK-8 and
    CMK-9 structures with variable volume fraction of carbon (vs. pore volume, i.e.,
    variable 'pore wall thickness'). In addition, we also simulate carbon materials
    with variable amounts of guest species (e.g., sulfur) residing in their pores.
    The corresponding XRD patterns are calculated. The carbon volume fraction turns
    out to have a significant impact on the relative diffraction peak intensities,
    especially in case of CMK-9 carbon that features a bimodal porosity. Likewise,
    the presence of guest species in the pores may also strongly affect the relative
    peak intensities. Our study suggests that careful evaluation of experimental low-angle
    XRD patterns of (real) CMK-8 or CMK-9 materials offers an opportunity to obtain
    detailed information about the nanostructural properties in addition to the mere
    identification of the pore systems geometry.
article_number: '110330'
article_type: original
author:
- first_name: Bertram
  full_name: Schwind, Bertram
  last_name: Schwind
- first_name: Jan-Henrik
  full_name: Smått, Jan-Henrik
  last_name: Smått
- first_name: Michael
  full_name: Tiemann, Michael
  id: '23547'
  last_name: Tiemann
  orcid: 0000-0003-1711-2722
- first_name: Christian
  full_name: Weinberger, Christian
  id: '11848'
  last_name: Weinberger
citation:
  ama: Schwind B, Smått J-H, Tiemann M, Weinberger C. Modeling of gyroidal mesoporous
    CMK-8 and CMK-9 carbon nanostructures and their X-Ray diffraction patterns. <i>Microporous
    and Mesoporous Materials</i>. Published online 2021. doi:<a href="https://doi.org/10.1016/j.micromeso.2020.110330">10.1016/j.micromeso.2020.110330</a>
  apa: Schwind, B., Smått, J.-H., Tiemann, M., &#38; Weinberger, C. (2021). Modeling
    of gyroidal mesoporous CMK-8 and CMK-9 carbon nanostructures and their X-Ray diffraction
    patterns. <i>Microporous and Mesoporous Materials</i>, Article 110330. <a href="https://doi.org/10.1016/j.micromeso.2020.110330">https://doi.org/10.1016/j.micromeso.2020.110330</a>
  bibtex: '@article{Schwind_Smått_Tiemann_Weinberger_2021, title={Modeling of gyroidal
    mesoporous CMK-8 and CMK-9 carbon nanostructures and their X-Ray diffraction patterns},
    DOI={<a href="https://doi.org/10.1016/j.micromeso.2020.110330">10.1016/j.micromeso.2020.110330</a>},
    number={110330}, journal={Microporous and Mesoporous Materials}, author={Schwind,
    Bertram and Smått, Jan-Henrik and Tiemann, Michael and Weinberger, Christian},
    year={2021} }'
  chicago: Schwind, Bertram, Jan-Henrik Smått, Michael Tiemann, and Christian Weinberger.
    “Modeling of Gyroidal Mesoporous CMK-8 and CMK-9 Carbon Nanostructures and Their
    X-Ray Diffraction Patterns.” <i>Microporous and Mesoporous Materials</i>, 2021.
    <a href="https://doi.org/10.1016/j.micromeso.2020.110330">https://doi.org/10.1016/j.micromeso.2020.110330</a>.
  ieee: 'B. Schwind, J.-H. Smått, M. Tiemann, and C. Weinberger, “Modeling of gyroidal
    mesoporous CMK-8 and CMK-9 carbon nanostructures and their X-Ray diffraction patterns,”
    <i>Microporous and Mesoporous Materials</i>, Art. no. 110330, 2021, doi: <a href="https://doi.org/10.1016/j.micromeso.2020.110330">10.1016/j.micromeso.2020.110330</a>.'
  mla: Schwind, Bertram, et al. “Modeling of Gyroidal Mesoporous CMK-8 and CMK-9 Carbon
    Nanostructures and Their X-Ray Diffraction Patterns.” <i>Microporous and Mesoporous
    Materials</i>, 110330, 2021, doi:<a href="https://doi.org/10.1016/j.micromeso.2020.110330">10.1016/j.micromeso.2020.110330</a>.
  short: B. Schwind, J.-H. Smått, M. Tiemann, C. Weinberger, Microporous and Mesoporous
    Materials (2021).
date_created: 2021-10-08T10:02:31Z
date_updated: 2023-03-07T10:44:44Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.1016/j.micromeso.2020.110330
language:
- iso: eng
publication: Microporous and Mesoporous Materials
publication_identifier:
  issn:
  - 1387-1811
publication_status: published
quality_controlled: '1'
status: public
title: Modeling of gyroidal mesoporous CMK-8 and CMK-9 carbon nanostructures and their
  X-Ray diffraction patterns
type: journal_article
user_id: '23547'
year: '2021'
...
---
_id: '25897'
abstract:
- lang: eng
  text: A comparison of infrared spectroscopic analytical approaches was made in order
    to assess their applicability for internal structure characterization of SiO2
    thin films. Markers for porosity and/or disorder based on the analysis of the
    asymmetric stretching absorption band of SiO2 between 900−1350 cm−1 were discussed.
    The shape of this band, which shows a well-defined LO–TO splitting, depends not
    only on the inherent characteristics of the film under analysis but also on the
    particular geometry of the IR experiment and the specific surface selection rules
    of the substrate. Three types of SiO2 thin films with clearly defined porosity
    ranging from dense films to mesoporous films were investigated by transmission
    (at different incidence angles), direct specular reflection (at different angles),
    and diffuse reflection. Two different types of substrate, metallic and semiconducting,
    were used. The combined effect of substrate and specific technique in the final
    shape of the band, was discussed, and the efficacy for their applicability to
    the determination of porosity in thin SiO2 films was critically evaluated.
article_number: '103256'
article_type: original
author:
- first_name: Teresa
  full_name: de los Arcos, Teresa
  last_name: de los Arcos
- first_name: Hendrik
  full_name: Müller, Hendrik
  last_name: Müller
- first_name: Fuzeng
  full_name: Wang, Fuzeng
  last_name: Wang
- first_name: Varun Raj
  full_name: Damerla, Varun Raj
  last_name: Damerla
- first_name: Christian
  full_name: Hoppe, Christian
  last_name: Hoppe
- first_name: Christian
  full_name: Weinberger, Christian
  id: '11848'
  last_name: Weinberger
- first_name: Michael
  full_name: Tiemann, Michael
  id: '23547'
  last_name: Tiemann
  orcid: 0000-0003-1711-2722
- first_name: Guido
  full_name: Grundmeier, Guido
  id: '194'
  last_name: Grundmeier
citation:
  ama: de los Arcos T, Müller H, Wang F, et al. Review of infrared spectroscopy techniques
    for the determination of internal structure in thin SiO2 films. <i>Vibrational
    Spectroscopy</i>. Published online 2021. doi:<a href="https://doi.org/10.1016/j.vibspec.2021.103256">10.1016/j.vibspec.2021.103256</a>
  apa: de los Arcos, T., Müller, H., Wang, F., Damerla, V. R., Hoppe, C., Weinberger,
    C., Tiemann, M., &#38; Grundmeier, G. (2021). Review of infrared spectroscopy
    techniques for the determination of internal structure in thin SiO2 films. <i>Vibrational
    Spectroscopy</i>, Article 103256. <a href="https://doi.org/10.1016/j.vibspec.2021.103256">https://doi.org/10.1016/j.vibspec.2021.103256</a>
  bibtex: '@article{de los Arcos_Müller_Wang_Damerla_Hoppe_Weinberger_Tiemann_Grundmeier_2021,
    title={Review of infrared spectroscopy techniques for the determination of internal
    structure in thin SiO2 films}, DOI={<a href="https://doi.org/10.1016/j.vibspec.2021.103256">10.1016/j.vibspec.2021.103256</a>},
    number={103256}, journal={Vibrational Spectroscopy}, author={de los Arcos, Teresa
    and Müller, Hendrik and Wang, Fuzeng and Damerla, Varun Raj and Hoppe, Christian
    and Weinberger, Christian and Tiemann, Michael and Grundmeier, Guido}, year={2021}
    }'
  chicago: Arcos, Teresa de los, Hendrik Müller, Fuzeng Wang, Varun Raj Damerla, Christian
    Hoppe, Christian Weinberger, Michael Tiemann, and Guido Grundmeier. “Review of
    Infrared Spectroscopy Techniques for the Determination of Internal Structure in
    Thin SiO2 Films.” <i>Vibrational Spectroscopy</i>, 2021. <a href="https://doi.org/10.1016/j.vibspec.2021.103256">https://doi.org/10.1016/j.vibspec.2021.103256</a>.
  ieee: 'T. de los Arcos <i>et al.</i>, “Review of infrared spectroscopy techniques
    for the determination of internal structure in thin SiO2 films,” <i>Vibrational
    Spectroscopy</i>, Art. no. 103256, 2021, doi: <a href="https://doi.org/10.1016/j.vibspec.2021.103256">10.1016/j.vibspec.2021.103256</a>.'
  mla: de los Arcos, Teresa, et al. “Review of Infrared Spectroscopy Techniques for
    the Determination of Internal Structure in Thin SiO2 Films.” <i>Vibrational Spectroscopy</i>,
    103256, 2021, doi:<a href="https://doi.org/10.1016/j.vibspec.2021.103256">10.1016/j.vibspec.2021.103256</a>.
  short: T. de los Arcos, H. Müller, F. Wang, V.R. Damerla, C. Hoppe, C. Weinberger,
    M. Tiemann, G. Grundmeier, Vibrational Spectroscopy (2021).
date_created: 2021-10-08T10:09:45Z
date_updated: 2023-03-07T10:44:06Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
- _id: '302'
doi: 10.1016/j.vibspec.2021.103256
language:
- iso: eng
publication: Vibrational Spectroscopy
publication_identifier:
  issn:
  - 0924-2031
publication_status: published
quality_controlled: '1'
status: public
title: Review of infrared spectroscopy techniques for the determination of internal
  structure in thin SiO2 films
type: journal_article
user_id: '23547'
year: '2021'
...
---
_id: '42812'
author:
- first_name: Alexander
  full_name: Olenberg, Alexander
  last_name: Olenberg
citation:
  ama: Olenberg A. <i>Untersuchung und Optimierung von strukturierten Packungen mittels
    CFD-Simulationen </i>.; 2021.
  apa: Olenberg, A. (2021). <i>Untersuchung und Optimierung von strukturierten Packungen
    mittels CFD-Simulationen </i>.
  bibtex: '@book{Olenberg_2021, title={Untersuchung und Optimierung von strukturierten
    Packungen mittels CFD-Simulationen }, author={Olenberg, Alexander}, year={2021}
    }'
  chicago: Olenberg, Alexander. <i>Untersuchung und Optimierung von strukturierten
    Packungen mittels CFD-Simulationen </i>, 2021.
  ieee: A. Olenberg, <i>Untersuchung und Optimierung von strukturierten Packungen
    mittels CFD-Simulationen </i>. 2021.
  mla: Olenberg, Alexander. <i>Untersuchung und Optimierung von strukturierten Packungen
    mittels CFD-Simulationen </i>. 2021.
  short: A. Olenberg, Untersuchung und Optimierung von strukturierten Packungen mittels
    CFD-Simulationen , 2021.
date_created: 2023-03-07T09:26:42Z
date_updated: 2023-03-07T09:26:48Z
department:
- _id: '145'
language:
- iso: ger
publication_identifier:
  isbn:
  - '9783843947855'
status: public
title: 'Untersuchung und Optimierung von strukturierten Packungen mittels CFD-Simulationen '
type: dissertation
user_id: '15324'
year: '2021'
...
---
_id: '25893'
abstract:
- lang: eng
  text: Tailor-made ordered mesoporous materials bear great potential in numerous
    fields of application where large interfaces are required. However, the inherent
    surfacechemical properties of conventional materials, such as silica, carbon or
    organosilica, poses some limitations with respect to their application. Surface
    manipulation by functionalization with chemically more reactive groups is one
    way to improve materials for their desired purpose. Another approach is the design
    of high surface-area composite materials. The surface manipulation, either by
    functionalization or by introducing guest species, can be performed selectively.
    This means that when several distinct, i.e. , hierarchical, types of surfaces
    or pore systems exist in a material, each of them may be chosen for manipulation.
    Several strategies can be identified to achieve this goal. Molecules or molecule
    assemblies can be utilized to temporarily protect pores or surfaces (soft protection),
    while manipulation occurs at the accessible sites. This approach is a recurring
    motive in this review and can also be applied to rigid template matrices (hard
    protection). Furthermore, the size of functionalization agents (size protection)
    and their reactivity/diffusion (kinetic protection) into the pores can also be
    utilized to achieve selectivity. In addition, challenges in the synthesis and
    characterization of selectively manipulated ordered mesoporous materials are discussed.
article_number: '2001153'
article_type: review
author:
- first_name: Michael
  full_name: Tiemann, Michael
  id: '23547'
  last_name: Tiemann
  orcid: 0000-0003-1711-2722
- first_name: Christian
  full_name: Weinberger, Christian
  id: '11848'
  last_name: Weinberger
citation:
  ama: Tiemann M, Weinberger C. Selective Modification of Hierarchical Pores and Surfaces
    in Nanoporous Materials. <i>Advanced Materials Interfaces</i>. Published online
    2021. doi:<a href="https://doi.org/10.1002/admi.202001153">10.1002/admi.202001153</a>
  apa: Tiemann, M., &#38; Weinberger, C. (2021). Selective Modification of Hierarchical
    Pores and Surfaces in Nanoporous Materials. <i>Advanced Materials Interfaces</i>,
    Article 2001153. <a href="https://doi.org/10.1002/admi.202001153">https://doi.org/10.1002/admi.202001153</a>
  bibtex: '@article{Tiemann_Weinberger_2021, title={Selective Modification of Hierarchical
    Pores and Surfaces in Nanoporous Materials}, DOI={<a href="https://doi.org/10.1002/admi.202001153">10.1002/admi.202001153</a>},
    number={2001153}, journal={Advanced Materials Interfaces}, author={Tiemann, Michael
    and Weinberger, Christian}, year={2021} }'
  chicago: Tiemann, Michael, and Christian Weinberger. “Selective Modification of
    Hierarchical Pores and Surfaces in Nanoporous Materials.” <i>Advanced Materials
    Interfaces</i>, 2021. <a href="https://doi.org/10.1002/admi.202001153">https://doi.org/10.1002/admi.202001153</a>.
  ieee: 'M. Tiemann and C. Weinberger, “Selective Modification of Hierarchical Pores
    and Surfaces in Nanoporous Materials,” <i>Advanced Materials Interfaces</i>, Art.
    no. 2001153, 2021, doi: <a href="https://doi.org/10.1002/admi.202001153">10.1002/admi.202001153</a>.'
  mla: Tiemann, Michael, and Christian Weinberger. “Selective Modification of Hierarchical
    Pores and Surfaces in Nanoporous Materials.” <i>Advanced Materials Interfaces</i>,
    2001153, 2021, doi:<a href="https://doi.org/10.1002/admi.202001153">10.1002/admi.202001153</a>.
  short: M. Tiemann, C. Weinberger, Advanced Materials Interfaces (2021).
date_created: 2021-10-08T10:01:21Z
date_updated: 2023-03-07T10:45:40Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.1002/admi.202001153
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://onlinelibrary.wiley.com/doi/epdf/10.1002/admi.202001153
oa: '1'
publication: Advanced Materials Interfaces
publication_identifier:
  issn:
  - 2196-7350
  - 2196-7350
publication_status: published
quality_controlled: '1'
status: public
title: Selective Modification of Hierarchical Pores and Surfaces in Nanoporous Materials
type: journal_article
user_id: '23547'
year: '2021'
...
---
_id: '41431'
author:
- first_name: Christian
  full_name: Fuchs, Christian
  id: '21863'
  last_name: Fuchs
  orcid: 0000-0003-0589-4579
citation:
  ama: 'Fuchs C. Engels@200: Friedrich Engels in the Age of Digital Capitalism. <i>tripleC:
    Communication, Capitalism &#38; Critique</i>. 2021;19(1):1-194. doi:<a href="https://doi.org/10.31269/triplec.v19i1.1233">https://doi.org/10.31269/triplec.v19i1.1233</a>'
  apa: 'Fuchs, C. (2021). Engels@200: Friedrich Engels in the Age of Digital Capitalism.
    <i>TripleC: Communication, Capitalism &#38; Critique</i>, <i>19</i>(1), 1–194.
    <a href="https://doi.org/10.31269/triplec.v19i1.1233">https://doi.org/10.31269/triplec.v19i1.1233</a>'
  bibtex: '@article{Fuchs_2021, title={Engels@200: Friedrich Engels in the Age of
    Digital Capitalism}, volume={19}, DOI={<a href="https://doi.org/10.31269/triplec.v19i1.1233">https://doi.org/10.31269/triplec.v19i1.1233</a>},
    number={1}, journal={tripleC: Communication, Capitalism &#38; Critique}, author={Fuchs,
    Christian}, year={2021}, pages={1–194} }'
  chicago: 'Fuchs, Christian. “Engels@200: Friedrich Engels in the Age of Digital
    Capitalism.” <i>TripleC: Communication, Capitalism &#38; Critique</i> 19, no.
    1 (2021): 1–194. <a href="https://doi.org/10.31269/triplec.v19i1.1233">https://doi.org/10.31269/triplec.v19i1.1233</a>.'
  ieee: 'C. Fuchs, “Engels@200: Friedrich Engels in the Age of Digital Capitalism,”
    <i>tripleC: Communication, Capitalism &#38; Critique</i>, vol. 19, no. 1, pp.
    1–194, 2021, doi: <a href="https://doi.org/10.31269/triplec.v19i1.1233">https://doi.org/10.31269/triplec.v19i1.1233</a>.'
  mla: 'Fuchs, Christian. “Engels@200: Friedrich Engels in the Age of Digital Capitalism.”
    <i>TripleC: Communication, Capitalism &#38; Critique</i>, vol. 19, no. 1, 2021,
    pp. 1–194, doi:<a href="https://doi.org/10.31269/triplec.v19i1.1233">https://doi.org/10.31269/triplec.v19i1.1233</a>.'
  short: 'C. Fuchs, TripleC: Communication, Capitalism &#38; Critique 19 (2021) 1–194.'
date_created: 2023-02-02T03:32:27Z
date_updated: 2023-03-08T02:08:37Z
department:
- _id: '136'
doi: https://doi.org/10.31269/triplec.v19i1.1233
extern: '1'
intvolume: '        19'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.31269/triplec.v19i1.1233
oa: '1'
page: 1-194
publication: 'tripleC: Communication, Capitalism & Critique'
status: public
title: 'Engels@200: Friedrich Engels in the Age of Digital Capitalism'
type: journal_article
user_id: '49063'
volume: 19
year: '2021'
...
---
_id: '41599'
author:
- first_name: Christian
  full_name: Fuchs, Christian
  id: '21863'
  last_name: Fuchs
  orcid: 0000-0003-0589-4579
- first_name: Nick
  full_name: Dyer-Witheford, Nick
  last_name: Dyer-Witheford
citation:
  ama: Fuchs C, Dyer-Witheford N. 卡尔·马克思与互联网研究. <i>国际社会科学杂志 (Journal of International
    Social Sciences) 2021 (9)</i>. Published online 2021:66-76.
  apa: Fuchs C., &#38; Dyer-Witheford N. (2021). 卡尔·马克思与互联网研究. <i>国际社会科学杂志 (Journal
    of International Social Sciences) 2021 (9)</i>, 66–76.
  bibtex: '@article{Fuchs_Dyer-Witheford_2021, title={卡尔·马克思与互联网研究}, journal={国际社会科学杂志
    (Journal of International Social Sciences) 2021 (9)}, author={Fuchs Christian
    and Dyer-Witheford Nick}, year={2021}, pages={66–76} }'
  chicago: Fuchs Christian, and Dyer-Witheford Nick. “卡尔·马克思与互联网研究.” <i>国际社会科学杂志 (Journal
    of International Social Sciences) 2021 (9)</i>, 2021, 66–76.
  ieee: Fuchs C. and Dyer-Witheford N., “卡尔·马克思与互联网研究,” <i>国际社会科学杂志 (Journal of International
    Social Sciences) 2021 (9)</i>, pp. 66–76, 2021.
  mla: Fuchs Christian, and Dyer-Witheford Nick. “卡尔·马克思与互联网研究.” <i>国际社会科学杂志 (Journal
    of International Social Sciences) 2021 (9)</i>, 2021, pp. 66–76.
  short: Fuchs C., Dyer-Witheford N., 国际社会科学杂志 (Journal of International Social Sciences)
    2021 (9) (2021) 66–76.
date_created: 2023-02-03T02:41:42Z
date_updated: 2023-03-08T03:00:20Z
department:
- _id: '136'
extern: '1'
language:
- iso: chi
page: 66-76
publication: 国际社会科学杂志 (Journal of International Social Sciences) 2021 (9)
status: public
title: 卡尔·马克思与互联网研究
type: journal_article
user_id: '49063'
year: '2021'
...
---
_id: '25896'
abstract:
- lang: eng
  text: In this report, a flame spray pyrolysis setup has been examined with various
    in situ extraction methods of particle samples along the flame axis. First, two
    precursor formulations leading to the formation of iron oxide nanoparticles were
    used in a standardized SpraySyn burner system, and the final particle outcome
    was characterized by a broad range of established powder characterization techniques
    (TEM/HRTEM, SAXS, XRD, BET). The characterization of the powder products evidenced
    that mostly homogeneous gas-to-particle conversion takes place when applying an
    acidic precursor solution, whereas the absence of the acid leads to a dominant
    droplet-to-particle pathway. Our study indicates that a droplet-to-particle-pathway
    could be present even when processing the acidic formulation. However, even if
    a secondary pathway might take place in this case as well, it is not dominant
    and nearly negligible. Subsequently, the in situ particle structure evolution
    was investigated for the dominant gas-to-particle pathway, and particles were
    extracted along the flame axis for online SMPS and offline TEM/HRTEM analysis.
    Due to the highly reactive conditions within the flame (high temperatures, turbulent
    flow field, high particle number concentrations), the extraction of representative
    samples from spray flames is challenging. In order to handle the reactive conditions,
    two extraction techniques were tailored in this report. To extract an aerosol
    sample within the flame for SMPS measurement, a Hole in a Tube probe was adjusted.
    Thus, the mobility particle diameter as well as the corresponding distribution
    widths were obtained at different heights above the burner along the flame axis.
    For TEM/HRTEM image analysis, particle samples were collected thermophoretically
    by means of a tailored shutter system. Since all sampling grids were protected
    until reaching the flame axis and due to the low sampling time, momentary captures
    of local particle structures could be extracted precisely. The particle morphologies
    have clearly shown an evolution from spherical and paired particles in the flame
    center to fractal and compact agglomerates at later synthesis stages.
article_number: '105722'
article_type: original
author:
- first_name: R.
  full_name: Tischendorf, R.
  last_name: Tischendorf
- first_name: M.
  full_name: Simmler, M.
  last_name: Simmler
- first_name: Christian
  full_name: Weinberger, Christian
  id: '11848'
  last_name: Weinberger
- first_name: M.
  full_name: Bieber, M.
  last_name: Bieber
- first_name: M.
  full_name: Reddemann, M.
  last_name: Reddemann
- first_name: F.
  full_name: Fröde, F.
  last_name: Fröde
- first_name: J.
  full_name: Lindner, J.
  last_name: Lindner
- first_name: H.
  full_name: Pitsch, H.
  last_name: Pitsch
- first_name: R.
  full_name: Kneer, R.
  last_name: Kneer
- first_name: Michael
  full_name: Tiemann, Michael
  id: '23547'
  last_name: Tiemann
  orcid: 0000-0003-1711-2722
- first_name: H.
  full_name: Nirschl, H.
  last_name: Nirschl
- first_name: H.-J.
  full_name: Schmid, H.-J.
  last_name: Schmid
citation:
  ama: Tischendorf R, Simmler M, Weinberger C, et al. Examination of the evolution
    of iron oxide nanoparticles in flame spray pyrolysis by tailored in situ particle
    sampling techniques. <i>Journal of Aerosol Science</i>. Published online 2021.
    doi:<a href="https://doi.org/10.1016/j.jaerosci.2020.105722">10.1016/j.jaerosci.2020.105722</a>
  apa: Tischendorf, R., Simmler, M., Weinberger, C., Bieber, M., Reddemann, M., Fröde,
    F., Lindner, J., Pitsch, H., Kneer, R., Tiemann, M., Nirschl, H., &#38; Schmid,
    H.-J. (2021). Examination of the evolution of iron oxide nanoparticles in flame
    spray pyrolysis by tailored in situ particle sampling techniques. <i>Journal of
    Aerosol Science</i>, Article 105722. <a href="https://doi.org/10.1016/j.jaerosci.2020.105722">https://doi.org/10.1016/j.jaerosci.2020.105722</a>
  bibtex: '@article{Tischendorf_Simmler_Weinberger_Bieber_Reddemann_Fröde_Lindner_Pitsch_Kneer_Tiemann_et
    al._2021, title={Examination of the evolution of iron oxide nanoparticles in flame
    spray pyrolysis by tailored in situ particle sampling techniques}, DOI={<a href="https://doi.org/10.1016/j.jaerosci.2020.105722">10.1016/j.jaerosci.2020.105722</a>},
    number={105722}, journal={Journal of Aerosol Science}, author={Tischendorf, R.
    and Simmler, M. and Weinberger, Christian and Bieber, M. and Reddemann, M. and
    Fröde, F. and Lindner, J. and Pitsch, H. and Kneer, R. and Tiemann, Michael and
    et al.}, year={2021} }'
  chicago: Tischendorf, R., M. Simmler, Christian Weinberger, M. Bieber, M. Reddemann,
    F. Fröde, J. Lindner, et al. “Examination of the Evolution of Iron Oxide Nanoparticles
    in Flame Spray Pyrolysis by Tailored in Situ Particle Sampling Techniques.” <i>Journal
    of Aerosol Science</i>, 2021. <a href="https://doi.org/10.1016/j.jaerosci.2020.105722">https://doi.org/10.1016/j.jaerosci.2020.105722</a>.
  ieee: 'R. Tischendorf <i>et al.</i>, “Examination of the evolution of iron oxide
    nanoparticles in flame spray pyrolysis by tailored in situ particle sampling techniques,”
    <i>Journal of Aerosol Science</i>, Art. no. 105722, 2021, doi: <a href="https://doi.org/10.1016/j.jaerosci.2020.105722">10.1016/j.jaerosci.2020.105722</a>.'
  mla: Tischendorf, R., et al. “Examination of the Evolution of Iron Oxide Nanoparticles
    in Flame Spray Pyrolysis by Tailored in Situ Particle Sampling Techniques.” <i>Journal
    of Aerosol Science</i>, 105722, 2021, doi:<a href="https://doi.org/10.1016/j.jaerosci.2020.105722">10.1016/j.jaerosci.2020.105722</a>.
  short: R. Tischendorf, M. Simmler, C. Weinberger, M. Bieber, M. Reddemann, F. Fröde,
    J. Lindner, H. Pitsch, R. Kneer, M. Tiemann, H. Nirschl, H.-J. Schmid, Journal
    of Aerosol Science (2021).
date_created: 2021-10-08T10:07:18Z
date_updated: 2023-03-08T08:07:30Z
department:
- _id: '9'
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.1016/j.jaerosci.2020.105722
language:
- iso: eng
publication: Journal of Aerosol Science
publication_identifier:
  issn:
  - 0021-8502
publication_status: published
quality_controlled: '1'
status: public
title: Examination of the evolution of iron oxide nanoparticles in flame spray pyrolysis
  by tailored in situ particle sampling techniques
type: journal_article
user_id: '23547'
year: '2021'
...
---
_id: '22635'
abstract:
- lang: eng
  text: Photodynamic therapy (PDT) using TiO2 nanoparticles has become an important
    alternative treatment for different types of cancer due to their high photocatalytic
    activity and high absorption of UV-A light. To potentiate this treatment, we have
    coated commercial glass plates with TiO2 nanoparticles prepared by the sol–gel
    method (TiO2-m), which exhibit a remarkable selectivity for the irreversible trapping
    of cancer cells. The physicochemical properties of the deposited TiO2-m nanoparticle
    coatings have been characterized by a number of complementary surface-analytical
    techniques and their interaction with leukemia and healthy blood cells were investigated.
    Scanning electron and atomic force microscopy verify the formation of a compact
    layer of TiO2-m nanoparticles. The particles are predominantly in the anatase
    phase and have hydroxyl-terminated surfaces as revealed by Raman, X-ray photoelectron,
    and infrared spectroscopy, as well as X-ray diffraction. We find that lymphoblastic
    leukemia cells adhere to the TiO2-m coating and undergo amoeboid-like migration,
    whereas lymphocytic cells show distinctly weaker interactions with the coating.
    This evidences the potential of this nanomaterial coating to selectively trap
    cancer cells and renders it a promising candidate for the development of future
    prototypes of PDT devices for the treatment of leukemia and other types of cancers
    with non-adherent cells.
article_type: original
author:
- first_name: Jaime Andres
  full_name: Garcia Diosa, Jaime Andres
  last_name: Garcia Diosa
- first_name: Alejandro
  full_name: Gonzalez Orive, Alejandro
  last_name: Gonzalez Orive
- first_name: Christian
  full_name: Weinberger, Christian
  id: '11848'
  last_name: Weinberger
- first_name: Sabrina
  full_name: Schwiderek, Sabrina
  last_name: Schwiderek
- first_name: Steffen
  full_name: Knust, Steffen
  last_name: Knust
- first_name: Michael
  full_name: Tiemann, Michael
  id: '23547'
  last_name: Tiemann
  orcid: 0000-0003-1711-2722
- first_name: Guido
  full_name: Grundmeier, Guido
  id: '194'
  last_name: Grundmeier
- first_name: Adrian
  full_name: Keller, Adrian
  id: '48864'
  last_name: Keller
  orcid: 0000-0001-7139-3110
- first_name: Ruben Jesus
  full_name: Camargo Amado, Ruben Jesus
  last_name: Camargo Amado
citation:
  ama: 'Garcia Diosa JA, Gonzalez Orive A, Weinberger C, et al. TiO2 nanoparticle
    coatings on glass surfaces for the selective trapping of leukemia cells from peripheral
    blood. <i>Journal of Biomedical Materials Research Part B: Applied Biomaterials</i>.
    2021;109:2142–2153. doi:<a href="https://doi.org/10.1002/jbm.b.34862">10.1002/jbm.b.34862</a>'
  apa: 'Garcia Diosa, J. A., Gonzalez Orive, A., Weinberger, C., Schwiderek, S., Knust,
    S., Tiemann, M., Grundmeier, G., Keller, A., &#38; Camargo Amado, R. J. (2021).
    TiO2 nanoparticle coatings on glass surfaces for the selective trapping of leukemia
    cells from peripheral blood. <i>Journal of Biomedical Materials Research Part
    B: Applied Biomaterials</i>, <i>109</i>, 2142–2153. <a href="https://doi.org/10.1002/jbm.b.34862">https://doi.org/10.1002/jbm.b.34862</a>'
  bibtex: '@article{Garcia Diosa_Gonzalez Orive_Weinberger_Schwiderek_Knust_Tiemann_Grundmeier_Keller_Camargo
    Amado_2021, title={TiO2 nanoparticle coatings on glass surfaces for the selective
    trapping of leukemia cells from peripheral blood}, volume={109}, DOI={<a href="https://doi.org/10.1002/jbm.b.34862">10.1002/jbm.b.34862</a>},
    journal={Journal of Biomedical Materials Research Part B: Applied Biomaterials},
    author={Garcia Diosa, Jaime Andres and Gonzalez Orive, Alejandro and Weinberger,
    Christian and Schwiderek, Sabrina and Knust, Steffen and Tiemann, Michael and
    Grundmeier, Guido and Keller, Adrian and Camargo Amado, Ruben Jesus}, year={2021},
    pages={2142–2153} }'
  chicago: 'Garcia Diosa, Jaime Andres, Alejandro Gonzalez Orive, Christian Weinberger,
    Sabrina Schwiderek, Steffen Knust, Michael Tiemann, Guido Grundmeier, Adrian Keller,
    and Ruben Jesus Camargo Amado. “TiO2 Nanoparticle Coatings on Glass Surfaces for
    the Selective Trapping of Leukemia Cells from Peripheral Blood.” <i>Journal of
    Biomedical Materials Research Part B: Applied Biomaterials</i> 109 (2021): 2142–2153.
    <a href="https://doi.org/10.1002/jbm.b.34862">https://doi.org/10.1002/jbm.b.34862</a>.'
  ieee: 'J. A. Garcia Diosa <i>et al.</i>, “TiO2 nanoparticle coatings on glass surfaces
    for the selective trapping of leukemia cells from peripheral blood,” <i>Journal
    of Biomedical Materials Research Part B: Applied Biomaterials</i>, vol. 109, pp.
    2142–2153, 2021, doi: <a href="https://doi.org/10.1002/jbm.b.34862">10.1002/jbm.b.34862</a>.'
  mla: 'Garcia Diosa, Jaime Andres, et al. “TiO2 Nanoparticle Coatings on Glass Surfaces
    for the Selective Trapping of Leukemia Cells from Peripheral Blood.” <i>Journal
    of Biomedical Materials Research Part B: Applied Biomaterials</i>, vol. 109, 2021,
    pp. 2142–2153, doi:<a href="https://doi.org/10.1002/jbm.b.34862">10.1002/jbm.b.34862</a>.'
  short: 'J.A. Garcia Diosa, A. Gonzalez Orive, C. Weinberger, S. Schwiderek, S. Knust,
    M. Tiemann, G. Grundmeier, A. Keller, R.J. Camargo Amado, Journal of Biomedical
    Materials Research Part B: Applied Biomaterials 109 (2021) 2142–2153.'
date_created: 2021-07-08T11:34:21Z
date_updated: 2023-03-08T08:10:25Z
department:
- _id: '302'
- _id: '307'
- _id: '35'
- _id: '2'
doi: 10.1002/jbm.b.34862
intvolume: '       109'
language:
- iso: eng
page: 2142–2153
publication: 'Journal of Biomedical Materials Research Part B: Applied Biomaterials'
publication_identifier:
  issn:
  - 1552-4973
  - 1552-4981
publication_status: published
quality_controlled: '1'
status: public
title: TiO2 nanoparticle coatings on glass surfaces for the selective trapping of
  leukemia cells from peripheral blood
type: journal_article
user_id: '23547'
volume: 109
year: '2021'
...
---
_id: '25892'
abstract:
- lang: eng
  text: The tetratopic linker 1,1,2,2-tetrakis(4-phosphonophenyl)ethylene (H8TPPE)
    was used to synthesize the three new porous metal–organic frameworks of composition
    [M2(H2O)2(H2TPPE)]·xH2O (M = Al3+, Ga3+, Fe3+), denoted as M-CAU-53 under hydrothermal
    reaction conditions, using the corresponding metal nitrates as starting materials.
    The crystal structures of the compounds were determined ab initio from powder
    X-ray diffraction data, revealing small structural differences. Proton conductivity
    measurements were carried out, indicating different conductivity mechanisms. The
    differences in proton conductivity could be linked to the individual structures.
    In addition, a thorough characterization via thermogravimetry, elemental analysis,
    IR-spectroscopy as well as N2- and H2O-sorption is given.
article_type: original
author:
- first_name: Felix
  full_name: Steinke, Felix
  last_name: Steinke
- first_name: Ali
  full_name: Javed, Ali
  last_name: Javed
- first_name: Stephan
  full_name: Wöhlbrandt, Stephan
  last_name: Wöhlbrandt
- first_name: Michael
  full_name: Tiemann, Michael
  id: '23547'
  last_name: Tiemann
  orcid: 0000-0003-1711-2722
- first_name: Norbert
  full_name: Stock, Norbert
  last_name: Stock
citation:
  ama: Steinke F, Javed A, Wöhlbrandt S, Tiemann M, Stock N. New isoreticular phosphonate
    MOFs based on a tetratopic linker. <i>Dalton Transactions</i>. Published online
    2021:13572-13579. doi:<a href="https://doi.org/10.1039/d1dt02610k">10.1039/d1dt02610k</a>
  apa: Steinke, F., Javed, A., Wöhlbrandt, S., Tiemann, M., &#38; Stock, N. (2021).
    New isoreticular phosphonate MOFs based on a tetratopic linker. <i>Dalton Transactions</i>,
    13572–13579. <a href="https://doi.org/10.1039/d1dt02610k">https://doi.org/10.1039/d1dt02610k</a>
  bibtex: '@article{Steinke_Javed_Wöhlbrandt_Tiemann_Stock_2021, title={New isoreticular
    phosphonate MOFs based on a tetratopic linker}, DOI={<a href="https://doi.org/10.1039/d1dt02610k">10.1039/d1dt02610k</a>},
    journal={Dalton Transactions}, author={Steinke, Felix and Javed, Ali and Wöhlbrandt,
    Stephan and Tiemann, Michael and Stock, Norbert}, year={2021}, pages={13572–13579}
    }'
  chicago: Steinke, Felix, Ali Javed, Stephan Wöhlbrandt, Michael Tiemann, and Norbert
    Stock. “New Isoreticular Phosphonate MOFs Based on a Tetratopic Linker.” <i>Dalton
    Transactions</i>, 2021, 13572–79. <a href="https://doi.org/10.1039/d1dt02610k">https://doi.org/10.1039/d1dt02610k</a>.
  ieee: 'F. Steinke, A. Javed, S. Wöhlbrandt, M. Tiemann, and N. Stock, “New isoreticular
    phosphonate MOFs based on a tetratopic linker,” <i>Dalton Transactions</i>, pp.
    13572–13579, 2021, doi: <a href="https://doi.org/10.1039/d1dt02610k">10.1039/d1dt02610k</a>.'
  mla: Steinke, Felix, et al. “New Isoreticular Phosphonate MOFs Based on a Tetratopic
    Linker.” <i>Dalton Transactions</i>, 2021, pp. 13572–79, doi:<a href="https://doi.org/10.1039/d1dt02610k">10.1039/d1dt02610k</a>.
  short: F. Steinke, A. Javed, S. Wöhlbrandt, M. Tiemann, N. Stock, Dalton Transactions
    (2021) 13572–13579.
date_created: 2021-10-08T09:57:34Z
date_updated: 2023-03-08T08:08:22Z
department:
- _id: '2'
- _id: '307'
doi: 10.1039/d1dt02610k
language:
- iso: eng
page: 13572-13579
publication: Dalton Transactions
publication_identifier:
  issn:
  - 1477-9226
  - 1477-9234
publication_status: published
quality_controlled: '1'
status: public
title: New isoreticular phosphonate MOFs based on a tetratopic linker
type: journal_article
user_id: '23547'
year: '2021'
...
---
_id: '29061'
author:
- first_name: Birgit
  full_name: Eickelmann, Birgit
  id: '40387'
  last_name: Eickelmann
citation:
  ama: 'Eickelmann B. Etwas anarchischer, freier, ungewohnter (Ein Gespräch mit Birgit
    Eickelmann). In: Vodafone Stiftung Deutschland, ed. <i>Chancen denken. Impulse
    für eine offene und mutige Gesellschaft im 21. Jahrhundert</i>. ; 2021:24-35.'
  apa: Eickelmann, B. (2021). Etwas anarchischer, freier, ungewohnter (Ein Gespräch
    mit Birgit Eickelmann). In Vodafone Stiftung Deutschland (Ed.), <i>Chancen denken.
    Impulse für eine offene und mutige Gesellschaft im 21. Jahrhundert</i> (pp. 24–35).
  bibtex: '@inbook{Eickelmann_2021, title={Etwas anarchischer, freier, ungewohnter
    (Ein Gespräch mit Birgit Eickelmann)}, booktitle={Chancen denken. Impulse für
    eine offene und mutige Gesellschaft im 21. Jahrhundert}, author={Eickelmann, Birgit},
    editor={Vodafone Stiftung Deutschland}, year={2021}, pages={24–35} }'
  chicago: Eickelmann, Birgit. “Etwas anarchischer, freier, ungewohnter (Ein Gespräch
    mit Birgit Eickelmann).” In <i>Chancen denken. Impulse für eine offene und mutige
    Gesellschaft im 21. Jahrhundert</i>, edited by Vodafone Stiftung Deutschland,
    24–35, 2021.
  ieee: B. Eickelmann, “Etwas anarchischer, freier, ungewohnter (Ein Gespräch mit
    Birgit Eickelmann),” in <i>Chancen denken. Impulse für eine offene und mutige
    Gesellschaft im 21. Jahrhundert</i>, Vodafone Stiftung Deutschland, Ed. 2021,
    pp. 24–35.
  mla: Eickelmann, Birgit. “Etwas anarchischer, freier, ungewohnter (Ein Gespräch
    mit Birgit Eickelmann).” <i>Chancen denken. Impulse für eine offene und mutige
    Gesellschaft im 21. Jahrhundert</i>, edited by Vodafone Stiftung Deutschland,
    2021, pp. 24–35.
  short: 'B. Eickelmann, in: Vodafone Stiftung Deutschland (Ed.), Chancen denken.
    Impulse für eine offene und mutige Gesellschaft im 21. Jahrhundert, 2021, pp.
    24–35.'
corporate_editor:
- Vodafone Stiftung Deutschland
date_created: 2021-12-20T13:07:09Z
date_updated: 2023-03-13T12:59:21Z
ddc:
- '370'
department:
- _id: '462'
file:
- access_level: closed
  content_type: application/pdf
  creator: sschall
  date_created: 2021-12-20T13:09:53Z
  date_updated: 2021-12-20T13:09:53Z
  file_id: '29063'
  file_name: chancen-denken_WEB.pdf
  file_size: 8387422
  relation: main_file
  success: 1
file_date_updated: 2021-12-20T13:09:53Z
has_accepted_license: '1'
language:
- iso: ger
page: 24-35
publication: Chancen denken. Impulse für eine offene und mutige Gesellschaft im 21.
  Jahrhundert
status: public
title: Etwas anarchischer, freier, ungewohnter (Ein Gespräch mit Birgit Eickelmann)
type: book_chapter
user_id: '40387'
year: '2021'
...
---
_id: '29062'
author:
- first_name: Birgit
  full_name: Eickelmann, Birgit
  id: '40387'
  last_name: Eickelmann
- first_name: Kai
  full_name: Maaz, Kai
  last_name: Maaz
citation:
  ama: 'Eickelmann B, Maaz K. Ungleichheiten im Bildungssystem – eine unangenehme
    Konstante. Sinnvolle Maßnahmen und die Grenzen des Möglichen. In: Maaz K, Becker-Mrotzek
    M, eds. <i>Schule weiter denken</i>. Duden-Verlag; 2021:132-150.'
  apa: Eickelmann, B., &#38; Maaz, K. (2021). Ungleichheiten im Bildungssystem – eine
    unangenehme Konstante. Sinnvolle Maßnahmen und die Grenzen des Möglichen. In K.
    Maaz &#38; M. Becker-Mrotzek (Eds.), <i>Schule weiter denken</i> (pp. 132–150).
    Duden-Verlag.
  bibtex: '@inbook{Eickelmann_Maaz_2021, place={Berlin}, title={Ungleichheiten im
    Bildungssystem – eine unangenehme Konstante. Sinnvolle Maßnahmen und die Grenzen
    des Möglichen}, booktitle={Schule weiter denken}, publisher={Duden-Verlag}, author={Eickelmann,
    Birgit and Maaz, Kai}, editor={Maaz, Kai and Becker-Mrotzek, Michael}, year={2021},
    pages={132–150} }'
  chicago: 'Eickelmann, Birgit, and Kai Maaz. “Ungleichheiten im Bildungssystem –
    eine unangenehme Konstante. Sinnvolle Maßnahmen und die Grenzen des Möglichen.”
    In <i>Schule weiter denken</i>, edited by Kai Maaz and Michael Becker-Mrotzek,
    132–50. Berlin: Duden-Verlag, 2021.'
  ieee: 'B. Eickelmann and K. Maaz, “Ungleichheiten im Bildungssystem – eine unangenehme
    Konstante. Sinnvolle Maßnahmen und die Grenzen des Möglichen,” in <i>Schule weiter
    denken</i>, K. Maaz and M. Becker-Mrotzek, Eds. Berlin: Duden-Verlag, 2021, pp.
    132–150.'
  mla: Eickelmann, Birgit, and Kai Maaz. “Ungleichheiten im Bildungssystem – eine
    unangenehme Konstante. Sinnvolle Maßnahmen und die Grenzen des Möglichen.” <i>Schule
    weiter denken</i>, edited by Kai Maaz and Michael Becker-Mrotzek, Duden-Verlag,
    2021, pp. 132–50.
  short: 'B. Eickelmann, K. Maaz, in: K. Maaz, M. Becker-Mrotzek (Eds.), Schule weiter
    denken, Duden-Verlag, Berlin, 2021, pp. 132–150.'
date_created: 2021-12-20T13:09:12Z
date_updated: 2023-03-13T12:59:53Z
department:
- _id: '462'
editor:
- first_name: Kai
  full_name: Maaz, Kai
  last_name: Maaz
- first_name: Michael
  full_name: Becker-Mrotzek, Michael
  last_name: Becker-Mrotzek
language:
- iso: ger
page: 132-150
place: Berlin
publication: Schule weiter denken
publisher: Duden-Verlag
status: public
title: Ungleichheiten im Bildungssystem – eine unangenehme Konstante. Sinnvolle Maßnahmen
  und die Grenzen des Möglichen
type: book_chapter
user_id: '40387'
year: '2021'
...
---
_id: '34024'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n               <jats:sec>\r\n                  <jats:title>Objective</jats:title>\r\n
    \                 <jats:p>External focus (EF) of attention leads to improved balance
    performance. Consideration of the neuromodulatory effects of EF may inform its
    clinical utility in addressing neuroplastic impairments after musculoskeletal
    injuries. We aimed to determine whether electrocortical activity and balance performance
    changed with attentional foci that prioritized differing sensory feedback and
    whether changes in electrocortical activity and balance were associated.</jats:p>\r\n
    \              </jats:sec>\r\n               <jats:sec>\r\n                  <jats:title>Methods</jats:title>\r\n
    \                 <jats:p>Individuals who were healthy (n = 15) performed a single-limb
    balance task under 3 conditions: internal focus (IF), somatosensory focus [EF
    with a baton (EF-baton)], and visual focus [EF with a laser (EF-laser)]. Electrocortical
    activity and postural sway were recorded concurrently using electroencephalography
    and a triaxial force plate. Electroencephalographic signals were decomposed, localized,
    and clustered to generate power spectral density in θ and α-2 frequency bands.
    Postural sway signals were analyzed with center-of-pressure sway metrics (eg,
    area, distance, velocity) and knee angle. The relationship between percent change
    in clustered brain activity and task performance metrics was assessed.</jats:p>\r\n
    \              </jats:sec>\r\n               <jats:sec>\r\n                  <jats:title>Results</jats:title>\r\n
    \                 <jats:p>Both EF conditions resulted in increased cortical activity
    and improved balance performance compared to IF. EF-laser had the largest effect,
    demonstrating increased frontal θ power (d = 0.64), decreased central θ power
    (d = −0.30), and decreased bilateral motor, bilateral parietal, and occipital
    α-2 power (d = −1.38 to −4.27) as well as a shorter path distance (d = −0.94)
    and a deeper (d = 0.70) and less variable (d = −1.15) knee angle than IF. Weak
    to moderate associations exist between increases in cortical activity and improved
    balance performance (ρ = 0.405–0.584).</jats:p>\r\n               </jats:sec>\r\n
    \              <jats:sec>\r\n                  <jats:title>Conclusions</jats:title>\r\n
    \                 <jats:p>EF resulted in increased cortical activity associated
    with cognitive, motor, somatosensory, and visual processing. EF-laser, which prioritized
    visual feedback, had the largest and broadest effects. Changes in cortical activity
    resulting from EF were independently associated with improved balance performance.</jats:p>\r\n
    \              </jats:sec>\r\n               <jats:sec>\r\n                  <jats:title>Impact</jats:title>\r\n
    \                 <jats:p>This study demonstrates that goal-oriented attention
    results in functional increases in brain activity compared to internally directed
    self-focus. These results suggest EF may target neurophysiologic impairments and
    improve balance in clinical populations.</jats:p>\r\n               </jats:sec>"
author:
- first_name: David A
  full_name: Sherman, David A
  last_name: Sherman
- first_name: Tim
  full_name: Lehmann, Tim
  id: '41584'
  last_name: Lehmann
- first_name: Jochen
  full_name: Baumeister, Jochen
  id: '46'
  last_name: Baumeister
  orcid: 0000-0003-2683-5826
- first_name: Alli
  full_name: Gokeler, Alli
  last_name: Gokeler
- first_name: Luke
  full_name: Donovan, Luke
  last_name: Donovan
- first_name: Grant E
  full_name: Norte, Grant E
  last_name: Norte
citation:
  ama: Sherman DA, Lehmann T, Baumeister J, Gokeler A, Donovan L, Norte GE. External
    Focus of Attention Influences Cortical Activity Associated with Single Limb Balance
    Performance. <i>Physical Therapy</i>. Published online 2021. doi:<a href="https://doi.org/10.1093/ptj/pzab223">10.1093/ptj/pzab223</a>
  apa: Sherman, D. A., Lehmann, T., Baumeister, J., Gokeler, A., Donovan, L., &#38;
    Norte, G. E. (2021). External Focus of Attention Influences Cortical Activity
    Associated with Single Limb Balance Performance. <i>Physical Therapy</i>. <a href="https://doi.org/10.1093/ptj/pzab223">https://doi.org/10.1093/ptj/pzab223</a>
  bibtex: '@article{Sherman_Lehmann_Baumeister_Gokeler_Donovan_Norte_2021, title={External
    Focus of Attention Influences Cortical Activity Associated with Single Limb Balance
    Performance}, DOI={<a href="https://doi.org/10.1093/ptj/pzab223">10.1093/ptj/pzab223</a>},
    journal={Physical Therapy}, publisher={Oxford University Press (OUP)}, author={Sherman,
    David A and Lehmann, Tim and Baumeister, Jochen and Gokeler, Alli and Donovan,
    Luke and Norte, Grant E}, year={2021} }'
  chicago: Sherman, David A, Tim Lehmann, Jochen Baumeister, Alli Gokeler, Luke Donovan,
    and Grant E Norte. “External Focus of Attention Influences Cortical Activity Associated
    with Single Limb Balance Performance.” <i>Physical Therapy</i>, 2021. <a href="https://doi.org/10.1093/ptj/pzab223">https://doi.org/10.1093/ptj/pzab223</a>.
  ieee: 'D. A. Sherman, T. Lehmann, J. Baumeister, A. Gokeler, L. Donovan, and G.
    E. Norte, “External Focus of Attention Influences Cortical Activity Associated
    with Single Limb Balance Performance,” <i>Physical Therapy</i>, 2021, doi: <a
    href="https://doi.org/10.1093/ptj/pzab223">10.1093/ptj/pzab223</a>.'
  mla: Sherman, David A., et al. “External Focus of Attention Influences Cortical
    Activity Associated with Single Limb Balance Performance.” <i>Physical Therapy</i>,
    Oxford University Press (OUP), 2021, doi:<a href="https://doi.org/10.1093/ptj/pzab223">10.1093/ptj/pzab223</a>.
  short: D.A. Sherman, T. Lehmann, J. Baumeister, A. Gokeler, L. Donovan, G.E. Norte,
    Physical Therapy (2021).
date_created: 2022-11-07T11:57:53Z
date_updated: 2023-03-13T15:07:10Z
department:
- _id: '17'
- _id: '172'
doi: 10.1093/ptj/pzab223
keyword:
- Physical Therapy
- Sports Therapy and Rehabilitation
language:
- iso: eng
publication: Physical Therapy
publication_identifier:
  issn:
  - 0031-9023
  - 1538-6724
publication_status: published
publisher: Oxford University Press (OUP)
status: public
title: External Focus of Attention Influences Cortical Activity Associated with Single
  Limb Balance Performance
type: journal_article
user_id: '46'
year: '2021'
...
---
_id: '32434'
abstract:
- lang: eng
  text: <jats:p>Whereas initial findings have already identified cortical patterns
    accompanying proprioceptive deficiencies in patients after anterior cruciate ligament
    reconstruction (ACLR), little is known about compensatory sensorimotor mechanisms
    for re-establishing postural control. Therefore, the aim of the present study
    was to explore leg dependent patterns of cortical contributions to postural control
    in patients 6 weeks following ACLR. A total of 12 patients after ACLR (25.1 ±
    3.2 years, 178.1 ± 9.7 cm, 77.5 ± 14.4 kg) and another 12 gender, age, and activity
    matched healthy controls participated in this study. All subjects performed 10
    × 30 s. single leg stances on each leg, equipped with 64-channel mobile electroencephalography
    (EEG). Postural stability was quantified by area of sway and sway velocity. Estimations
    of the weighted phase lag index were conducted as a cortical measure of functional
    connectivity. The findings showed significant group × leg interactions for increased
    functional connectivity in the anterior cruciate ligament (ACL) injured leg, predominantly
    including fronto−parietal [<jats:italic>F</jats:italic><jats:sub>(1, 22)</jats:sub>
    = 8.41, <jats:italic>p</jats:italic> ≤ 0.008, η<jats:sup>2</jats:sup> = 0.28],
    fronto−occipital [<jats:italic>F</jats:italic><jats:sub>(1, 22)</jats:sub> = 4.43,
    <jats:italic>p</jats:italic> ≤ 0.047, η<jats:sup>2</jats:sup> = 0.17], parieto−motor
    [<jats:italic>F</jats:italic><jats:sub>(1, 22)</jats:sub> = 10.30, <jats:italic>p</jats:italic>
    ≤ 0.004, η<jats:sup>2</jats:sup> = 0.32], occipito−motor [<jats:italic>F</jats:italic><jats:sub>(1,
    22)</jats:sub> = 5.21, <jats:italic>p</jats:italic> ≤ 0.032, η<jats:sup>2</jats:sup>
    = 0.19], and occipito−parietal [<jats:italic>F</jats:italic><jats:sub>(1, 22)</jats:sub>
    = 4.60, <jats:italic>p</jats:italic> ≤ 0.043, η<jats:sup>2</jats:sup> = 0.17]
    intra−hemispherical connections in the contralateral hemisphere and occipito−motor
    [<jats:italic>F</jats:italic><jats:sub>(1, 22)</jats:sub> = 7.33, <jats:italic>p</jats:italic>
    ≤ 0.013, η<jats:sup>2</jats:sup> = 0.25] on the ipsilateral hemisphere to the
    injured leg. Higher functional connectivity in patients after ACLR, attained by
    increased emphasis of functional connections incorporating the somatosensory and
    visual areas, may serve as a compensatory mechanism to control postural stability
    of the injured leg in the early phase of rehabilitation. These preliminary results
    may help to develop new neurophysiological assessments for detecting functional
    deficiencies after ACLR in the future.</jats:p>
author:
- first_name: Tim
  full_name: Lehmann, Tim
  id: '41584'
  last_name: Lehmann
- first_name: Daniel
  full_name: Büchel, Daniel
  id: '41088'
  last_name: Büchel
- first_name: Caroline
  full_name: Mouton, Caroline
  last_name: Mouton
- first_name: Alli
  full_name: Gokeler, Alli
  last_name: Gokeler
- first_name: Romain
  full_name: Seil, Romain
  last_name: Seil
- first_name: Jochen
  full_name: Baumeister, Jochen
  id: '46'
  last_name: Baumeister
  orcid: 0000-0003-2683-5826
citation:
  ama: Lehmann T, Büchel D, Mouton C, Gokeler A, Seil R, Baumeister J. Functional
    Cortical Connectivity Related to Postural Control in Patients Six Weeks After
    Anterior Cruciate Ligament Reconstruction. <i>Frontiers in Human Neuroscience</i>.
    2021;15. doi:<a href="https://doi.org/10.3389/fnhum.2021.655116">10.3389/fnhum.2021.655116</a>
  apa: Lehmann, T., Büchel, D., Mouton, C., Gokeler, A., Seil, R., &#38; Baumeister,
    J. (2021). Functional Cortical Connectivity Related to Postural Control in Patients
    Six Weeks After Anterior Cruciate Ligament Reconstruction. <i>Frontiers in Human
    Neuroscience</i>, <i>15</i>. <a href="https://doi.org/10.3389/fnhum.2021.655116">https://doi.org/10.3389/fnhum.2021.655116</a>
  bibtex: '@article{Lehmann_Büchel_Mouton_Gokeler_Seil_Baumeister_2021, title={Functional
    Cortical Connectivity Related to Postural Control in Patients Six Weeks After
    Anterior Cruciate Ligament Reconstruction}, volume={15}, DOI={<a href="https://doi.org/10.3389/fnhum.2021.655116">10.3389/fnhum.2021.655116</a>},
    journal={Frontiers in Human Neuroscience}, publisher={Frontiers Media SA}, author={Lehmann,
    Tim and Büchel, Daniel and Mouton, Caroline and Gokeler, Alli and Seil, Romain
    and Baumeister, Jochen}, year={2021} }'
  chicago: Lehmann, Tim, Daniel Büchel, Caroline Mouton, Alli Gokeler, Romain Seil,
    and Jochen Baumeister. “Functional Cortical Connectivity Related to Postural Control
    in Patients Six Weeks After Anterior Cruciate Ligament Reconstruction.” <i>Frontiers
    in Human Neuroscience</i> 15 (2021). <a href="https://doi.org/10.3389/fnhum.2021.655116">https://doi.org/10.3389/fnhum.2021.655116</a>.
  ieee: 'T. Lehmann, D. Büchel, C. Mouton, A. Gokeler, R. Seil, and J. Baumeister,
    “Functional Cortical Connectivity Related to Postural Control in Patients Six
    Weeks After Anterior Cruciate Ligament Reconstruction,” <i>Frontiers in Human
    Neuroscience</i>, vol. 15, 2021, doi: <a href="https://doi.org/10.3389/fnhum.2021.655116">10.3389/fnhum.2021.655116</a>.'
  mla: Lehmann, Tim, et al. “Functional Cortical Connectivity Related to Postural
    Control in Patients Six Weeks After Anterior Cruciate Ligament Reconstruction.”
    <i>Frontiers in Human Neuroscience</i>, vol. 15, Frontiers Media SA, 2021, doi:<a
    href="https://doi.org/10.3389/fnhum.2021.655116">10.3389/fnhum.2021.655116</a>.
  short: T. Lehmann, D. Büchel, C. Mouton, A. Gokeler, R. Seil, J. Baumeister, Frontiers
    in Human Neuroscience 15 (2021).
date_created: 2022-07-27T07:47:56Z
date_updated: 2023-03-13T15:20:11Z
department:
- _id: '17'
- _id: '172'
doi: 10.3389/fnhum.2021.655116
intvolume: '        15'
keyword:
- Behavioral Neuroscience
- Biological Psychiatry
- Psychiatry and Mental health
- Neurology
- Neuropsychology and Physiological Psychology
language:
- iso: eng
publication: Frontiers in Human Neuroscience
publication_identifier:
  issn:
  - 1662-5161
publication_status: published
publisher: Frontiers Media SA
status: public
title: Functional Cortical Connectivity Related to Postural Control in Patients Six
  Weeks After Anterior Cruciate Ligament Reconstruction
type: journal_article
user_id: '46'
volume: 15
year: '2021'
...
