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    <id>54188</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>08015</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>1A</issue>
    <volume>58</volume>
    <type>article</type>
    <publisherName>IOP Publishing</publisherName>
    <publisherPlace/>
    <creatingCorporation>Bureau International des Poids et Mesures (BIPM)</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Mass fraction assignment of Bisphenol-A high purity material</title>
    <abstract language="eng">The CCQM-K148.a comparison was coordinated by the BIPM on behalf of the CCQM Organic Analysis Working Group for NMIs and DIs which provide measurement services in organic analysis under the CIPM MRA. It was undertaken as a "Track A" comparison within the OAWG strategic plan. CCQM-K148.a demonstrates capabilities for assigning the mass fraction content of a solid organic compound having moderate molecular complexity, where the compound has a molar mass in the range (75 - 500) g/mol and is non-polar (pKow &lt; −2), when present as the primary organic component in a neat organic solid and where the mass fraction content of the primary component in the material is in excess of 950 mg/g.&#13;
&#13;
Participants were required to report the mass fraction of Bisphenol A present in one supplied unit of the comparison material. Participants using a mass balance method for the assignment were also required to report their assignments of the impurity components present in the material. Methods used by the seventeen participating NMIs or DIs were predominantly based on either stand-alone mass balance (summation of impurities) or qNMR approaches, or the combination of data obtained using both methods. The results obtained using thermal methods based on freezing-point depression methods were also reported by a limited number of participants. There was excellent agreement between assignments obtained using all three approaches to assign the BPA content.&#13;
&#13;
The assignment of the values for the mass fraction content of BPA consistent with the KCRV was achieved by most of the comparison participants with an associated relative standard uncertainty in the assigned value in the range (0.1 - 0.5)%.</abstract>
    <parentTitle language="eng">Metrologia</parentTitle>
    <identifier type="doi">10.1088/0026-1394/58/1A/08015</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">05.01.2022</enrichment>
    <author>S. Westwood</author>
    <author>G. Martos</author>
    <author>R. Josephs</author>
    <author>T. Choteau</author>
    <author>R. Wielgosz</author>
    <author>S. Davies</author>
    <author>M. Moawad</author>
    <author>G. Tarrant</author>
    <author>B. Chan</author>
    <author>M. Alamgir</author>
    <author>E. de Rego</author>
    <author>W. Wollinger</author>
    <author>B. Garrido</author>
    <author>J. Fernandes</author>
    <author>R. de Sena</author>
    <author>R. Oliveira</author>
    <author>J. Melanson</author>
    <author>J. Bates</author>
    <author>P. Mai Le</author>
    <author>J. Meija</author>
    <author>C. Quan</author>
    <author>T. Huang</author>
    <author>W. Zhang</author>
    <author>R. Ma</author>
    <author>S. Zhang</author>
    <author>Y. Hao</author>
    <author>Y. He</author>
    <author>S. Song</author>
    <author>H. Wang</author>
    <author>F. Su</author>
    <author>T. Zhang</author>
    <author>H. Li</author>
    <author>W. Lam</author>
    <author>W. Wong</author>
    <author>W. Fung</author>
    <author>Rosemarie Philipp</author>
    <author>Ute Dorgerloh</author>
    <author>Klas Meyer</author>
    <author>Christian Piechotta</author>
    <author>Juliane Riedel</author>
    <author>Tanja Westphalen</author>
    <author>P. Giannikopoulou</author>
    <author>Ch. Alexopoulos</author>
    <author>E. Kakoulides</author>
    <author>Y. Kitamaki</author>
    <author>T. Yamazaki</author>
    <author>Y. Shimizu</author>
    <author>M. Kuroe</author>
    <author>M. Numata</author>
    <author>A. Pérez-Castorena</author>
    <author>M. Balderas-Escamilla</author>
    <author>J. Garcia-Escalante</author>
    <author>A. Krylov</author>
    <author>A. Mikheeva</author>
    <author>M. Beliakov</author>
    <author>M. Palagina</author>
    <author>I. Tkachenko</author>
    <author>S. Spirin</author>
    <author>V. Smirnov</author>
    <author>T. Tang Lin</author>
    <author>C. Pui Sze</author>
    <author>W. Juan</author>
    <author>W. Lingkai</author>
    <author>L. Ting</author>
    <author>L. Quinde</author>
    <author>C. Yizhao</author>
    <author>S. Lay Peng</author>
    <author>M. Fernandes-Whaley</author>
    <author>D. Prevoo-Franzsen</author>
    <author>L. Quinn</author>
    <author>N. Nhlapo</author>
    <author>D. Mkhize</author>
    <author>D. Marajh</author>
    <author>S. Chamane</author>
    <author>S. Ahn</author>
    <author>K. Choi</author>
    <author>S. Lee</author>
    <author>J. Han</author>
    <author>S. Baek</author>
    <author>B. Kim</author>
    <author>S. Marbumrung</author>
    <author>P. Jongmesuk</author>
    <author>K. Shearman</author>
    <author>C. Boonyakong</author>
    <author>M. Bilsel</author>
    <author>S. Gündüz</author>
    <author>I. Ün</author>
    <author>H. Yilmaz</author>
    <author>G. Bilsel</author>
    <author>T. Gökçen</author>
    <author>C. Clarkson</author>
    <author>J. Warren</author>
    <author>E. Achtar</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Bisphenol-A</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Purity assessment</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Interlaboratory key comparison</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metrology</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.4 Non-Target-Analytik</collection>
    <collection role="institutes" number="">1.7 Organische Spuren- und Lebensmittelanalytik</collection>
    <collection role="institutes" number="">1.8 Umweltanalytik</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>58996</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1233</pageFirst>
    <pageLast>1250</pageLast>
    <pageNumber/>
    <edition/>
    <issue>5</issue>
    <volume>2</volume>
    <type>article</type>
    <publisherName>Royal Society of Chemistry (RSC)</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">14 examples of how LLMs can transform materials science and chemistry: a reflection on a large language model hackathon</title>
    <abstract language="eng">Large-language models (LLMs) such as GPT-4 caught the interest of many scientists. Recent studies suggested that these models could be useful in chemistry and materials science. To explore these possibilities, we organized a hackathon. This article chronicles the projects built as part of this hackathon. Participants employed LLMs for various applications, including predicting properties of molecules and materials, designing novel interfaces for tools, extracting knowledge from unstructured data, and developing new educational applications. The diverse topics and the fact that working prototypes could be generated in less than two days highlight that LLMs will profoundly impact the future of our fields. The rich collection of ideas and projects also indicates that the applications of LLMs are not limited to materials science and chemistry but offer potential benefits to a wide range of scientific disciplines.</abstract>
    <parentTitle language="eng">Digital Discovery</parentTitle>
    <identifier type="doi">10.1039/d3dd00113j</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-589961</identifier>
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Canada"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-6507-6490","authenticated-orcid":false,"given":"Xiaoqi","family":"Zhang","sequence":"additional","affiliation":[{"name":"Laboratory of Molecular Simulation (LSMO), Institut des Sciences et Ing\u00e9nierie Chimiques, Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL), Sion, Valais, Switzerland"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-9082-9423","authenticated-orcid":false,"given":"Ghezal Ahmad","family":"Zia","sequence":"additional","affiliation":[{"name":"Bundesanstalt f\u00fcr Materialforschung und -pr\u00fcfung, Unter den Eichen 87, 12205 Berlin, Germany"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-3917-605X","authenticated-orcid":false,"given":"Aristana","family":"Scourtas","sequence":"additional","affiliation":[{"name":"Globus, University of Chicago, Data Science and Learning Division, Argonne National Lab, USA"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-9373-0058","authenticated-orcid":false,"given":"K. 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    <enrichment key="local_crossrefDocumentType">journal-article</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">04.12.2023</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Kevin Maik Jablonka</author>
    <author>Qianxiang Ai</author>
    <author>Alexander Al-Feghali</author>
    <author>Shruti Badhwar</author>
    <author>Joshua D. Bocarsly</author>
    <author>Andres M. Bran</author>
    <author>Stefan Bringuier</author>
    <author>L. Catherine Brinson</author>
    <author>Kamal Choudhary</author>
    <author>Defne Circi</author>
    <author>Sam Cox</author>
    <author>Wibe A. de Jong</author>
    <author>Matthew L. Evans</author>
    <author>Nicolas Gastellu</author>
    <author>Jerome Genzling</author>
    <author>María Victoria Gil</author>
    <author>Ankur K. Gupta</author>
    <author>Zhi Hong</author>
    <author>Alishba Imran</author>
    <author>Sabine Kruschwitz</author>
    <author>Anne Labarre</author>
    <author>Jakub Lála</author>
    <author>Tao Liu</author>
    <author>Steven Ma</author>
    <author>Sauradeep Majumdar</author>
    <author>Garrett W. Merz</author>
    <author>Nicolas Moitessier</author>
    <author>Elias Moubarak</author>
    <author>Beatriz Mouriño</author>
    <author>Brenden Pelkie</author>
    <author>Michael Pieler</author>
    <author>Mayk Caldas Ramos</author>
    <author>Bojana Ranković</author>
    <author>Samuel G. Rodriques</author>
    <author>Jacob N. Sanders</author>
    <author>Philippe Schwaller</author>
    <author>Marcus Schwarting</author>
    <author>Jiale Shi</author>
    <author>Berend Smit</author>
    <author>Ben E. Smith</author>
    <author>Joren Van Herck</author>
    <author>Christoph Völker</author>
    <author>Logan Ward</author>
    <author>Sean Warren</author>
    <author>Benjamin Weiser</author>
    <author>Sylvester Zhang</author>
    <author>Xiaoqi Zhang</author>
    <author>Ghezal Ahmad Jan Zia</author>
    <author>Aristana Scourtas</author>
    <author>K. J. Schmidt</author>
    <author>Ian Foster</author>
    <author>Andrew D. White</author>
    <author>Ben Blaiszik</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Large Language model</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Hackathon</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Concrete</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Prediction</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Inverse Design</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Orchestration</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <collection role="institutes" number="">8.0 Abteilungsleitung und andere</collection>
    <collection role="themenfelder" number="">Materialdesign</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/58996/published_version_14_examples_jablonka_2023.pdf</file>
  </doc>
  <doc>
    <id>30549</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1710</pageFirst>
    <pageLast>1720</pageLast>
    <pageNumber/>
    <edition/>
    <issue>8</issue>
    <volume>214</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Numerical simulation of full penetration laser welding of thick steel plate with high power high brightness laser</title>
    <abstract language="eng">Full penetration laser welding was carried out on a 10 mm steel plate using a 16 kW maximum power continuous wave thin disk laser. Upper surface and lower surface of molten pool were observed synchronously with two high speed CCD cameras during the welding process. The lower surface was much longer and more unstable than the upper one. A three dimensional laser deep penetration welding model in which volume of fluid (VOF) method was combined with a ray-tracing algorithm was used to simulate the dynamic coupling between keyhole and molten pool in laser full penetration welding. The calculated weld cross-section morphology and molten pool length on both upper side and lower side agree well with experimental results. Evolution of molten pool in lower side during full penetration laser welding was analyzed, periodical features of energy coupling, molten pool behavior and keyhole dynamics in laser full penetration welding were identified and discussed.</abstract>
    <parentTitle language="eng">Journal of materials processing technology</parentTitle>
    <identifier type="old">33524</identifier>
    <identifier type="doi">10.1016/j.jmatprotec.2014.03.016</identifier>
    <identifier type="issn">0924-0136</identifier>
    <identifier type="issn">1873-4774</identifier>
    <enrichment key="date_peer_review">14.04.2014</enrichment>
    <author>L. J. Zhang</author>
    <author>J. X. Zhang</author>
    <author>Andrey Gumenyuk</author>
    <author>Michael Rethmeier</author>
    <author>S.J. Na</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Full penetration laser welding</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Molten pool</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Keyhole</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Thick plate</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>51655</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>063208</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>6</issue>
    <volume>38</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation>American Vacuum Society</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Versailles Project on Advanced Materials and Standards interlaboratory study on intensity calibration for x-ray photoelectron spectroscopy instruments using low-density polyethylene</title>
    <abstract language="eng">We report the results of a Versailles Project on Advanced Materials and Standards interlaboratory study on the intensity scale calibration of x-ray photoelectron spectrometers using low-density polyethylene (LDPE) as an alternative material to gold, silver, and copper. An improved set of LDPE reference spectra, corrected for different instrument geometries using a quartz-monochromated Al Kα x-ray source, was developed using data provided by participants in this study. Using &#13;
these new reference spectra, a transmission function was calculated for each dataset that participants provided. When compared to a similar calibration procedure using the NPL reference spectra for gold, the LDPE intensity calibration method achieves an absolute offset of ∼3.0% and a systematic deviation of ±6.5% on average across all participants. For spectra recorded at high pass energies (≥90 eV), values of absolute offset and systematic deviation are ∼5.8% and ±5.7%, respectively, whereas for spectra collected at lower pass energies (&lt;90 eV), values of absolute offset and systematic deviation are ∼4.9% and ±8.8%, respectively; low pass energy spectra perform worse than the global average, in terms of systematic deviations, due to diminished count rates and signal-to-noise ratio. Differences in absolute offset are attributed to the surface roughness of the LDPE induced by sample preparation. We further assess the usability of LDPE as a secondary reference material and comment on its performance in the presence of issues such as variable dark noise, x-ray warm up times, inaccuracy at low count rates, and underlying spectrometer problems. In response to participant feedback and the results of the study, we provide an updated LDPE intensity calibration protocol to address the issues highlighted in the interlaboratory study. We also comment on the lack of implementation of a consistent and traceable intensity calibration method across the community of x-ray photoelectron spectroscopy (XPS) users and, therefore, propose a route to achieving this with the assistance of instrument manufacturers, metrology laboratories, and experts leading to an international standard for XPS intensity scale calibration.</abstract>
    <parentTitle language="eng">Journal of Vacuum Science &amp; Technology A</parentTitle>
    <identifier type="doi">10.1116/6.0000577</identifier>
    <enrichment key="date_peer_review">14.12.2020</enrichment>
    <author>B. P. Reed</author>
    <author>D.J.H. Cant</author>
    <author>J. Spencer</author>
    <author>A. J. Carmona-Carmona</author>
    <author>A. Bushell</author>
    <author>A. Herrara-Gómez</author>
    <author>A. Kurokawa</author>
    <author>A. Thissen</author>
    <author>A.G. Thomas</author>
    <author>A.J. Britton</author>
    <author>A. Bernasik</author>
    <author>A. Fuchs</author>
    <author>A. P. Baddorf</author>
    <author>B. Bock</author>
    <author>B. Thellacker</author>
    <author>B. Cheng</author>
    <author>D.G. Castner</author>
    <author>D.J. Morgan</author>
    <author>D. Valley</author>
    <author>E.A. Willneff</author>
    <author>E.F. Smith</author>
    <author>E. Nolot</author>
    <author>F. Xie</author>
    <author>G. Zorn</author>
    <author>G.C. Smith</author>
    <author>H. Yasukufu</author>
    <author>J. L. Fenton</author>
    <author>J. Chen</author>
    <author>J..D.P. Counsell</author>
    <author>Jörg Radnik</author>
    <author>K.J. Gaskell</author>
    <author>K. Artyushkova</author>
    <author>L. Yang</author>
    <author>L. Zhang</author>
    <author>M. Eguchi</author>
    <author>M. Walker</author>
    <author>M. Hajdyla</author>
    <author>M.M. Marzec</author>
    <author>M.R. Linford</author>
    <author>N. Kubota</author>
    <author>O. Cartazar-Martínez</author>
    <author>P. Dietrich</author>
    <author>R. Satoh</author>
    <author>S.L.M. Schroeder</author>
    <author>T.G. Avval</author>
    <author>T. Nagatomi</author>
    <author>V. Fernandez</author>
    <author>W. Lake</author>
    <author>Y. Azuma</author>
    <author>Y. Yoshikawa</author>
    <author>A.G. Shard</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray photoelectron spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Transmission function</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Intensity scale calibration</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Reference spectra</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Low-density polyethylene (LDPE)</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">6 Materialchemie</collection>
    <collection role="institutes" number="">6.1 Oberflächen- und Dünnschichtanalyse</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>52380</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>027001</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>39</volume>
    <type>article</type>
    <publisherName>American Vacuum Society</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">ERRATUM: “Versailles project on advanced materials and standards interlaboratory study on intensity calibration for x-ray photoelectron spectroscopy instruments using low-density polyethylene” [J. Vac. Sci. Technol. A 38, 063208 (2020)]</title>
    <abstract language="eng">The lead authors failed to name two collaborators as co-authors. The authors listed should include:&#13;
Miss Claudia L. Compean-Gonzalez (ORCID:&#13;
0000-0002-2367-8450) and Dr. Giacomo Ceccone (ORCID:&#13;
0000-0003-4637-0771).&#13;
These co-authors participated in VAMAS project A27, provided data that were analyzed and presented in this publication (and supporting information), and reviewed the manuscript before submission.</abstract>
    <parentTitle language="eng">Journal of Vacuum Science &amp; Technology A</parentTitle>
    <identifier type="doi">10.1116/6.0000907</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">07.04.2021</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>B. P. Reed</author>
    <author>D.J.H. Cant</author>
    <author>S.J. Spencer</author>
    <author>A. J. Carmona-Carmona</author>
    <author>A. Bushell</author>
    <author>A. Herrara-Gómez</author>
    <author>A. Kurokawa</author>
    <author>A. Thissen</author>
    <author>A.G. Thomas</author>
    <author>A.J. Britton</author>
    <author>A. Bernasik</author>
    <author>A. Fuchs</author>
    <author>A.P. Baddorf</author>
    <author>B. Bock</author>
    <author>B. Thellacker</author>
    <author>B. Cheng</author>
    <author>D.G. Castner</author>
    <author>D.J. Morgan</author>
    <author>D. Valley</author>
    <author>E.A. Willneff</author>
    <author>E.P. Smith</author>
    <author>E. Nolot</author>
    <author>F. Xie</author>
    <author>G. Zorn</author>
    <author>G.C. Smith</author>
    <author>H. Yasukufu</author>
    <author>J.L. Fenton</author>
    <author>J. Chen</author>
    <author>J.D.P. Counsell</author>
    <author>Jörg Radnik</author>
    <author>K.J. Gaskell</author>
    <author>K. Artyushkova</author>
    <author>L. Yang</author>
    <author>L. Zhang</author>
    <author>M. Eguchi</author>
    <author>M. Walker</author>
    <author>M. Hajdyla</author>
    <author>M.M. Marzec</author>
    <author>M.R. Linford</author>
    <author>N. Kubota</author>
    <author>O. Cortazar-Martinez</author>
    <author>P. Dietrich</author>
    <author>R. Satoh</author>
    <author>S.L.M. Schroeder</author>
    <author>T.G. Avval</author>
    <author>T. Nagatomi</author>
    <author>V. Fernandez</author>
    <author>W. Lake</author>
    <author>Y. Azuma</author>
    <author>Y. Yoshikawa</author>
    <author>C.L. Compean-Gonzalez</author>
    <author>G. Ceccone</author>
    <author>A.G. Shard</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray photoelectron spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Transmission function</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Low-density polyethylene</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">6 Materialchemie</collection>
    <collection role="institutes" number="">6.1 Oberflächen- und Dünnschichtanalyse</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>31072</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>08010, 1</pageFirst>
    <pageLast>44</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>51</volume>
    <type>article</type>
    <publisherName>Inst. of Physics Publ.</publisherName>
    <publisherPlace>Bristol</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Final report on key comparison CCQM-K55.c (L-(+)-Valine): Characterization of organic substances for chemical purity</title>
    <abstract language="eng">KEY COMPARISON&#13;
Under the auspices of the Organic Analysis Working Group (OAWG) of the Comité Consultatif pour la Quantité de Matière (CCQM) a key comparison, CCQM K55.c, was coordinated by the Bureau International des Poids et Mesures (BIPM) in 2012. Twenty National Measurement Institutes or Designated Institutes and the BIPM participated. Participants were required to assign the mass fraction of valine present as the main component in the comparison sample for CCQM-K55.c. The comparison samples were prepared from analytical grade L-valine purchased from a commercial supplier and used as provided without further treatment or purification.&#13;
&#13;
Valine was selected to be representative of the performance of a laboratory's measurement capability for the purity assignment of organic compounds of low structural complexity [molecular weight range 100300] and high polarity (pKOW &gt; –2).&#13;
&#13;
The KCRV for the valine content of the material was 992.0 mg/g with a combined standard uncertainty of 0.3 mg/g. The key comparison reference value (KCRV) was assigned by combination of KCRVs assigned from participant results for each orthogonal impurity class. The relative expanded uncertainties reported by laboratories having results consistent with the KCRV ranged from 1 mg/g to 6 mg/g when using mass balance based approaches alone, 2 mg/g to 7 mg/g using quantitative 1H NMR (qNMR) based approaches and from 1 mg/g to 2.5 mg/g when a result obtained by a mass balance method was combined with a separate qNMR result.&#13;
&#13;
The material provided several analytical challenges. In addition to the need to identify and quantify various related amino acid impurities including leucine, isoleucine, alanine and a-amino butyrate, care was required to select appropriate conditions for performing Karl Fischer titration assay for water content to avoid bias due to in situ formation of water by self-condensation under the assay conditions. It also proved to be a challenging compound for purity assignment by qNMR techniques.&#13;
&#13;
There was overall excellent agreement between participants in the identification and the quantification of the total and individual related structure impurities, water content, residual solvent and total non-volatile content of the sample. Appropriate technical justifications were developed to rationalise observed discrepancies in the limited cases where methodology differences led to inconsistent results.&#13;
&#13;
The comparison demonstrated that to perform a qNMR purity assignment the selection of appropriate parameters and an understanding of their potential influence on the assigned value is critical for reliable implementation of the method, particularly when one or more of the peaks to be quantified consist of complex multiplet signals.</abstract>
    <parentTitle language="eng">Metrologia</parentTitle>
    <identifier type="old">34064</identifier>
    <identifier type="doi">10.1088/0026-1394/51/1A/08010</identifier>
    <identifier type="issn">0026-1394</identifier>
    <identifier type="issn">1681-7575</identifier>
    <enrichment key="date_peer_review">17.07.2014</enrichment>
    <author>S. Westwood</author>
    <author>R. Josephs</author>
    <author>T. Choteau</author>
    <author>A. Daireaux</author>
    <author>R. Wielgosz</author>
    <author>S. Davies</author>
    <author>M. Moad</author>
    <author>B. Chan</author>
    <author>A. Munoz</author>
    <author>P. Conneely</author>
    <author>M. Ricci</author>
    <author>E.C.P. Do Rego</author>
    <author>B.C. Garrido</author>
    <author>F.G.M. Violante</author>
    <author>A. Windust</author>
    <author>X. Dai</author>
    <author>T. Huang</author>
    <author>W. Zhang</author>
    <author>F. Su</author>
    <author>C. Quan</author>
    <author>H. Wang</author>
    <author>M. Lo</author>
    <author>W. Wong</author>
    <author>F. Gantois</author>
    <author>B. Lalerle</author>
    <author>Ute Dorgerloh</author>
    <author>Matthias Koch</author>
    <author>Urszula-Anna Klyk-Seitz</author>
    <author>Dietmar Pfeifer</author>
    <author>Rosemarie Philipp</author>
    <author>Christian Piechotta</author>
    <author>Sebastian Recknagel</author>
    <author>Robert Rothe</author>
    <author>T. Yamazaki</author>
    <author>O. B. Zakaria</author>
    <author>E. Castro</author>
    <author>M. Balderas</author>
    <author>N. González</author>
    <author>C. Salazar</author>
    <author>L. Regalado</author>
    <author>E. Valle</author>
    <author>L. Rodríguez</author>
    <author>L.Á.. Laguna</author>
    <author>P. Ramírez</author>
    <author>M. Avila</author>
    <author>J. Ibarra</author>
    <author>L. Valle</author>
    <author>M. Arce</author>
    <author>Y. Mitani</author>
    <author>L. Konopelko</author>
    <author>A. Krylov</author>
    <author>E. Lopushanskaya</author>
    <author>T.T. Lin</author>
    <author>Q. Liu</author>
    <author>L.T. Kooi</author>
    <author>M. Fernandes-Whaley</author>
    <author>D. Prevoo-Franzsen</author>
    <author>N. Nhlapo</author>
    <author>R. Visser</author>
    <author>B. Kim</author>
    <author>H. Lee</author>
    <author>P. Kankaew</author>
    <author>P. Pookrod</author>
    <author>N. Sudsiri</author>
    <author>K. Shearman</author>
    <author>A.C. Gören</author>
    <author>G. Bilsel</author>
    <author>H. Yilmaz</author>
    <author>M. Bilsel</author>
    <author>M. Cergel</author>
    <author>F.G. Coskun</author>
    <author>E. Uysal</author>
    <author>S. Gündüz</author>
    <author>I. Ün</author>
    <author>J. Warren</author>
    <author>D.W. Bearden</author>
    <author>M. Bedner</author>
    <author>D.L. Duewer</author>
    <author>B.E. Lang</author>
    <author>K.A. Lippa</author>
    <author>M.M. Schantz</author>
    <author>J.R. Sieber</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>44999</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>08013, 1</pageFirst>
    <pageLast>38</pageLast>
    <pageNumber/>
    <edition/>
    <issue>Technical Supplement, 2018</issue>
    <volume>55</volume>
    <type>article</type>
    <publisherName>Institute of Physics Publishing (IOP) ; Bureau International des Poids et Mesures</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Mass fraction assignment of folic acid in a high purity material - CCQM-K55.d (Folic acid) Final Report</title>
    <abstract language="eng">The comparison required the assignment of the mass fraction of folic acid present as the main component in the comparison sample. Performance in the comparison is representative of a laboratory's measurement capability for the purity assignment of organic compounds of medium structural complexity [molecular weight range 300–500] and high polarity (pKOW &lt; −2).&#13;
Methods used by the eighteen participating NMIs or DIs were based on a mass balance (summation of impurities) or qNMR approach, or the combination of data obtained using both methods. The qNMR results tended to give slightly lower values for the content of folic acid, albeit with larger associated uncertainties, compared with the results obtained by mass balance procedures. Possible reasons for this divergence are discussed in the report, without reaching a definitive conclusion as to their origin.&#13;
The comparison demonstrates that for a structurally complex polar organic compound containing a high water content and presenting a number of additional analytical challenges, the assignment of the mass fraction content property value of the main component can reasonably be achieved with an associated relative standard uncertainty in the assigned value of 0.5%</abstract>
    <parentTitle language="eng">Metrologia</parentTitle>
    <identifier type="doi">10.1088/0026-1394/55/1A/08013</identifier>
    <identifier type="url">https://www.bipm.org/utils/common/pdf/final_reports/QM/K55/CCQM-K55.d.pdf</identifier>
    <enrichment key="date_peer_review">06.05.2019</enrichment>
    <author>S. Westwood</author>
    <author>R. Josephs</author>
    <author>T. Choteau</author>
    <author>A. Daireaux</author>
    <author>N. Stoppacher</author>
    <author>R. Wielgosz</author>
    <author>S. Davies</author>
    <author>E. do Rego</author>
    <author>W. Wollinger</author>
    <author>B. Garrido</author>
    <author>J. Fernandes</author>
    <author>J. Lima</author>
    <author>R. Oliveira</author>
    <author>R. de Sena</author>
    <author>A. Windust</author>
    <author>T. Huang</author>
    <author>X. Dai</author>
    <author>C. Quan</author>
    <author>H. He</author>
    <author>W. Zhang</author>
    <author>C. Wei</author>
    <author>N. Li</author>
    <author>D. Gao</author>
    <author>Z. Liu</author>
    <author>M. Lo</author>
    <author>W. Wong</author>
    <author>Dietmar Pfeifer</author>
    <author>Matthias Koch</author>
    <author>Ute Dorgerloh</author>
    <author>Robert Rothe</author>
    <author>Rosemarie Philipp</author>
    <author>N. Hanari</author>
    <author>M. Rezali</author>
    <author>C. Arzate</author>
    <author>M. Berenice</author>
    <author>V. Caballero</author>
    <author>M. Osuna</author>
    <author>A. Krylov</author>
    <author>S. Kharitonov</author>
    <author>E. Lopushanskaya</author>
    <author>Q. Liu</author>
    <author>T. Lin</author>
    <author>M. Fernandes-Whaley</author>
    <author>L. Quinn</author>
    <author>N. Nhlapo</author>
    <author>D. Prevoo-Franzsen</author>
    <author>M. Archer</author>
    <author>B. Kim</author>
    <author>S. Baek</author>
    <author>S. Lee</author>
    <author>J. Lee</author>
    <author>S. Marbumrung</author>
    <author>P. Kankaew</author>
    <author>K. Chaorenpornpukdee</author>
    <author>T. Chaipet</author>
    <author>K. Shearman</author>
    <author>A. Gören</author>
    <author>S. Gündüz</author>
    <author>H. Yilmaz</author>
    <author>I. Un</author>
    <author>G. Bilsel</author>
    <author>C. Clarkson</author>
    <author>M. Bedner</author>
    <author>J. Camara</author>
    <author>B. Lang</author>
    <author>K. Lippa</author>
    <author>M. Nelson</author>
    <author>B. Toman</author>
    <author>L. Yu</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CCQM key comparison</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Purity assessment</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Folic acid</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>54175</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>08016</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>1a</issue>
    <volume>58</volume>
    <type>article</type>
    <publisherName>IOP Publishing Lt.</publisherName>
    <publisherPlace>Bristol</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Thickness measurement of nm HfO2 films</title>
    <abstract language="eng">A pilot study for the thickness measurement of HfO2 films was performed by the Surface Analysis Working Group (SAWG) of the Consultative Committee for Amount of Substance (CCQM). The aim of this pilot study was to ensure the equivalency in the measurement capability of national metrology institutes for the thickness measurement of HfO2 films. In this pilot study, the thicknesses of six HfO2 films with nominal thickness from 1 nm to 4 nm were measured by X-ray Photoelectron Spectroscopy (XPS), X-ray Reflectometry(XRR), X-ray Fluorescence Analysis (XRF), Transmission Electron Spectroscopy (TEM), Spectroscopic Ellipsometry (SE) and Rutherford Backscattering Spectrometry (RBS). The reference thicknesses were determined by mutual calibration of a zero-offset method (Medium Energy Ion Scattering Spectroscopy (MEIS) of KRISS) and a method traceable to the length unit (the average thicknesses of three XRR data except the thinnest film). These reference thicknesses are traceable to the length unit because they are based on the traceability of XRR. For the thickness measurement by XPS, the effective attenuation length of Hf 4f electrons was determined. In the cases of XRR and TEM, the offset values were determined from a linear fitting between the reference thicknesses and the individual data by XRR and TEM. The amount of substance of HfO2, expressed as thickness of HfO2 films (in both linear and areal density units), was found to be a good subject for a CCQM key comparison.&#13;
&#13;
To reach the main text of this paper, click on Final Report.&#13;
&#13;
The final report has been peer-reviewed and approved for publication by the CCQM.</abstract>
    <parentTitle language="eng">Metrologia</parentTitle>
    <identifier type="issn">0026-1394</identifier>
    <identifier type="doi">10.1088/0026-1394/58/1A/08016</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">03.01.2022</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>K.J. Kim</author>
    <author>C.S. Kim</author>
    <author>S. W. Ruh</author>
    <author>Wolfgang Unger</author>
    <author>Jörg Radnik</author>
    <author>J. Mata-Salazar</author>
    <author>J.M. Juarez-Garcia</author>
    <author>O. Cortazar-Martinez</author>
    <author>A. Herrera-Gomez</author>
    <author>P.E. Hansen</author>
    <author>J.S. Madesen</author>
    <author>C.A. Senna</author>
    <author>B.S. Archanjo</author>
    <author>J.C. Damasceno</author>
    <author>C.A. Achete</author>
    <author>H. Wang</author>
    <author>M. Wang</author>
    <author>D. Windover</author>
    <author>E. Steel</author>
    <author>A. Kurokawa</author>
    <author>T. Fujimoto</author>
    <author>Y. Azuma</author>
    <author>S. Terauchi</author>
    <author>L. Zhang</author>
    <author>W.A. Jordaan</author>
    <author>S.J. Spencer</author>
    <author>A.G. Shard</author>
    <author>L. Koenders</author>
    <author>M. Krumrey</author>
    <author>I. Busch</author>
    <author>C. Jeynes</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Thickness measurements</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>nm films</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray Photoelectron Spectroscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Mutual calibration</value>
    </subject>
    <collection role="institutes" number="">6 Materialchemie</collection>
    <collection role="institutes" number="">6.1 Oberflächen- und Dünnschichtanalyse</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="themenfelder" number="">Advanced Materials</collection>
  </doc>
  <doc>
    <id>52435</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>08017</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>1a</issue>
    <volume>57</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">CCQM-K146 low-polarity analyte in high fat food: benzo a pyrene in olive oil</title>
    <abstract language="eng">The demonstration of competency and equivalence for the assessment of levels of contaminants and nutrients in primary foodstuffs is a priority within the 10-year strategy for the OAWG Track A core comparisons. The measurements are core challenges for reference material producers and providers of calibration Services. This key comparison related to low polarity analytes in a high fat, low protein, low carbohydrate food matrix and Benzo[a]pyrene in edible oil was the model System selected to align with this class within the OAWG strategy. Evidence of successful participation in formal, relevant international comparisons is needed to document measurement capability claims (CMCs) made by national metrology institutes (NMIs) and designated institutes (Dis). 16 National Metrology Institutions participated in the Track A Key Comparison CCQM-K146 Low-Polarity Analyte in high fat food: Benzo[a]pyrene in Olive Oil. Participants were requested to evaluate the mass fractions, expressed in µg/kg, of Benzo[a]pyrene in the olive oil material. The KCRV was determined from the results of all NMIs/DIs participating in the key comparison that used appropriately validated methods with demonstrated metrological traceability. Different methods such as liquid-liquid extraction, GPC and SPE were applied in the sample pretreatment and HPLC-FLD, HPLC-MS/MS, and GC-MS or GC-MS/MS were applied for detection by the participants. The mass fractions for BaP were in the range of (1.78 to 3.09) µg/kg with Standard uncertainties of (0.026 to 0.54) µg/kg, with corresponding relative Standard uncertainties from 0.9% to 21%. Five labs withdrew their result from the Statistical evaluation of the KCRV for technical reasons. One lab was excluded from the KCRV evaluation, as they did not meet the CIPM metrological traceability requirements. A Hierarchical Bayes option was selected for the KCRV value, which was determined as 2.74 µg/kg with a Standard uncertainty of 0.03 µg/kg. The 10 institutes those were included in the calculation of the consensus KCRV all agreed within their Standard uncertainties. Successful participation in CCQM-K146 demonstrates the measurement capabilities in determining mass fraction of organic compounds, with molecular mass of 100 g/mol to 500 g/mol, having low polarity pKow &lt; -2, in mass fraction range from 0.1 µg/kg to 1000 µg/kg in a high fat, low protein, low carbohydrate food matrix.</abstract>
    <parentTitle language="eng">Metrologia</parentTitle>
    <identifier type="doi">10.1088/0026-1394/57/1a/08017</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">15.05.2021</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>X.M. Li</author>
    <author>H.M. Li</author>
    <author>Q.H. Zhang</author>
    <author>X.H. Lu</author>
    <author>S.Q. Li</author>
    <author>Matthias Koch</author>
    <author>J. Polzer</author>
    <author>R. Hackenber</author>
    <author>M. Moniruzzaman</author>
    <author>M. Khan</author>
    <author>E. Kakoulides</author>
    <author>K. Pak-Wing</author>
    <author> Richy</author>
    <author>N. Chi-Shing</author>
    <author>T. Lu</author>
    <author>E.M. Gui</author>
    <author>P.S. Cheow</author>
    <author>T.L. Teo</author>
    <author>E. Rego</author>
    <author>B. Garrido</author>
    <author>L. Carvalho</author>
    <author>R. Leal</author>
    <author>F. Violante</author>
    <author>S.Y. Baek</author>
    <author>S. Lee</author>
    <author>K. Choi</author>
    <author>B. Kim</author>
    <author>M. Bucar-Miklavcic</author>
    <author>C. Hopley</author>
    <author>J. Nammoonnoy</author>
    <author>J. Murray</author>
    <author>W. Wilson</author>
    <author>B. Toman</author>
    <author>N. Itoh</author>
    <author>T. Gokcen</author>
    <author>A. Krylov</author>
    <author>A. Mikheeva</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metrology</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CCQM</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Food</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>PAH</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.7 Organische Spuren- und Lebensmittelanalytik</collection>
    <collection role="themenfelder" number="">Chemie und Prozesstechnik</collection>
    <collection role="themenfelder" number="">Chemische Charakterisierung und Spurenanalytik</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>53842</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>10</pageFirst>
    <pageLast>113785</pageLast>
    <pageNumber>1</pageNumber>
    <edition/>
    <issue/>
    <volume>239</volume>
    <type>article</type>
    <publisherName>Elsevier Ltd.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Multi-length scale characterization of compression on metal foam flow-field based fuel cells using X-ray computed tomography and neutron radiography</title>
    <abstract language="eng">The mechanical compression of metal foam flow-field based polymer electrolyte fuel cells (PEFCs) is critical in determining the interfacial contact resistance with gas diffusion layers (GDLs), reactant flow and water management.&#13;
The distinct scale between the pore structure of metal foams and the entire flow-field warrant a multilength scale characterization that combines ex-situ tests of compressed metal foam samples and in-operando analysis of operating PEFCs using X-ray computed tomography (CT) and neutron radiography. An optimal ‘medium’ compression was found to deliver a peak power density of 853 mW/cm². The X-ray CT data indicates that the compression process significantly decreases the mean pore size and narrows the pore size distribution of metal foams. Simulation results suggest compressing metal foam increases the pressure drop and gas velocity, improving the convective liquid water removal. This is in agreement with the neutron imaging results that demonstrates an increase in the mass of accumulated liquid water with minimum compression compared to the medium and maximum compression cases. The results show that a balance between Ohmic resistance, water removal capacity and parasitic power is imperative for the optimal performance of metal foam based PEFCs.</abstract>
    <parentTitle language="eng">Energy Conversion and Management</parentTitle>
    <identifier type="doi">10.1016/j.enconman.2020.113785</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">29.11.2021</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>Y. Wu</author>
    <author>X. Lu</author>
    <author>J.I.S. Cho</author>
    <author>L. Rasha</author>
    <author>M. Whiteley</author>
    <author>T. P. Neville</author>
    <author>R. Ziesche</author>
    <author>N. Kardjilov</author>
    <author>Henning Markötter</author>
    <author>I. Manke</author>
    <author>X. Zhang</author>
    <author>P. R. Shearing</author>
    <author>D. J. L. Brett</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fuel cell</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Compression effect</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Metal foam microstructure</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Neutron radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray CT</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="institutes" number="">8 Zerstörungsfreie Prüfung</collection>
    <collection role="institutes" number="">8.5 Röntgenbildgebung</collection>
    <collection role="themenfelder" number="">Energie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="themenfelder" number="">Wasserstoff</collection>
  </doc>
  <doc>
    <id>54662</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>8</issue>
    <volume>14</volume>
    <type>article</type>
    <publisherName>MDPI</publisherName>
    <publisherPlace>Basel</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Fluorescent Molecularly Imprinted Polymer Layers against Sialic Acid on Silica-coated Polystyrene Cores - Assessment of the Binding Behavior to Cancer Cells</title>
    <abstract language="eng">Sialic acid (SA) is a monosaccharide usually linked to the terminus of glycan chains on the cell surface. It plays a crucial role in many biological processes, and hypersialylation is a common feature in cancer. Lectins are widely used to analyze the cell surface expression of SA.&#13;
However, these protein molecules are usually expensive and easily denatured, which calls for the development of alternative glycan-specific receptors and cell imaging technologies. In this study, SA-imprinted fluorescent core-shell molecularly imprinted polymer particles (SA-MIPs) were employed to recognize SA on the cell surface of cancer cell lines. The SA-MIPs improved suspensibility and scattering properties compared with previously used core-shell SA-MIPs. Although SA-imprinting was performed using SA without preference for the alpha-2,3- and alpha-2,6-SA forms, we screened the cancer cell lines analyzed using the lectins Maackia Amurensis Lectin I (MAL I, alpha-2,3-SA) and Sambucus Nigra Lectin (SNA, alpha-2,6-SA). Our results show that the selected cancer cell lines in this study presented a varied binding behavior with the SA-MIPs. The binding pattern of the lectins was also demonstrated. Moreover, two different pentavalent SA conjugates were used to inhibit the binding of the SA-MIPs to breast, skin, and lung cancer cell lines, demonstrating the specificity of the SA-MIPs in both flow cytometry and confocal fluorescence microscopy. We concluded that the synthesized SA-MIPs might be a powerful future tool in the diagnostic analysis of various cancer cells.</abstract>
    <parentTitle language="eng">Cancers</parentTitle>
    <identifier type="issn">2072-6694</identifier>
    <identifier type="doi">110.3390/cancers14081875</identifier>
    <identifier type="urn">urn:nbn:de:kobv:b43-546625</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">02.05.2022</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>S. Beyer</author>
    <author>Martha Wamaitha Kimani</author>
    <author>Y. Zhang</author>
    <author>A. Verhassel</author>
    <author>L. Sternbæk</author>
    <author>T. Wang</author>
    <author>J. L. Persson</author>
    <author>P. Härkönen</author>
    <author>E. Johansson</author>
    <author>R. Caraballo</author>
    <author>M. Elofsson</author>
    <author>Kornelia Gawlitza</author>
    <author>Knut Rurack</author>
    <author>L. Ohlsson</author>
    <author>Z. El-Schich</author>
    <author>A. Gjörloff Wingren</author>
    <author>M. M. Stollenwerk</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cancer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Imprinting</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Molecularly imprinted polymers</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>SA conjugates</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sialic acid</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="institutes" number="">1 Analytische Chemie; Referenzmaterialien</collection>
    <collection role="institutes" number="">1.9 Chemische und optische Sensorik</collection>
    <collection role="themenfelder" number="">Umwelt</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei für die Öffentlichkeit verfügbar ("Open Access")</collection>
    <collection role="unnumberedseries" number="">Wissenschaftliche Artikel der BAM</collection>
    <collection role="themenfelder" number="">Sensorik</collection>
    <thesisPublisher>Bundesanstalt für Materialforschung und -prüfung (BAM)</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-bam/files/54662/cancers-14-01875-v2.pdf</file>
  </doc>
  <doc>
    <id>30284</id>
    <completedYear/>
    <publishedYear>2014</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>379</pageFirst>
    <pageLast>389</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>120</volume>
    <type>article</type>
    <publisherName>Elsevier Science</publisherName>
    <publisherPlace>Kidlington</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Reliability of electrochemical noise measurements: Results of round-robin testing on electrochemical noise</title>
    <abstract language="eng">Sixteen laboratories have performed electrochemical noise (EN) measurements based on two systems. The first uses a series of dummy cells consisting of a 'star' arrangement of resistors in order to validate the EN measurement equipment and determine its baseline noise performance, while the second system, based on a previous round-robin in the literature, examines the corrosion of aluminium in three environments. All participants used the same measurement protocol and the data reporting and analysis were performed with automatic procedures to avoid errors. The measurement instruments used in the various laboratories include commercial general-purpose potentiostats and custom-built EN systems. The measurements on dummy cells have demonstrated that few systems are capable of achieving instrument noise levels comparable to the thermal noise of the resistors, because of its low level. However, it is of greater concern that some of the instruments exhibited significant artefacts in the measured data, mostly because of the absence of anti-aliasing filters in the equipment or because the way it is used. The measurements on the aluminium samples involve a much higher source noise level during pitting corrosion, and most (though not all) instruments were able to make reliable measurements. However, during passivation, the low level of noise could be measured by very few systems. The round-robin testing has clearly shown that improvements are necessary in the choice of EN measurement equipment and settings and in the way to validate EN data measured. The results emphasise the need to validate measurement systems by using dummy cells and the need to check systematically that the noise of the electrochemical cell to be measured is significantly higher than the instrument noise measured with dummy cells of similar impedance.</abstract>
    <parentTitle language="eng">Electrochimica acta</parentTitle>
    <identifier type="old">33246</identifier>
    <identifier type="doi">10.1016/j.electacta.2013.12.093</identifier>
    <identifier type="issn">0013-4686</identifier>
    <identifier type="issn">1873-3859</identifier>
    <enrichment key="date_peer_review">03.03.2014</enrichment>
    <author>R.-W. Bosch</author>
    <author>R.A. Cottis</author>
    <author>K. Csecs</author>
    <author>T. Dorsch</author>
    <author>L. Dunbar</author>
    <author>Andreas Heyn</author>
    <author>F. Huet</author>
    <author>O. Hyökyvirta</author>
    <author>Z. Kerner</author>
    <author>A. Kobzova</author>
    <author>J. Macak</author>
    <author>R. Novotny</author>
    <author>J. Öijerholm</author>
    <author>J. Piippo</author>
    <author>R. Richner</author>
    <author>S. Ritter</author>
    <author>J.M. Sánchez-Amaya</author>
    <author>A. Somogyi</author>
    <author>S. Väisänen</author>
    <author>W. Zhang</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electrochemical noise</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Round-robin</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Corrosion</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>26831</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>41</pageLast>
    <pageNumber/>
    <edition/>
    <issue>CCQM-K55.b Final Report October 2012</issue>
    <volume>49</volume>
    <type>article</type>
    <publisherName>Inst. of Physics Publ.</publisherName>
    <publisherPlace>Bristol</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Final report on key comparison CCQM-K55.b (aldrin): An international comparison of mass friction purity assignment of aldrin</title>
    <abstract language="eng">Under the auspices of the Organic Analysis Working Group (OAWG) of the Comité Consultatif pour la Quantité de Matière (CCQM) a key comparison, CCQM K55.b, was coordinated by the Bureau International des Poids et Mesures (BIPM) in 2010/2011. Nineteen national measurement institutes and the BIPM participated. Participants were required to assign the mass fraction of aldrin present as the main component in the comparison sample for CCQM-K55.b which consisted of technical grade aldrin obtained from the National Measurement Institute Australia that had been subject to serial recrystallization and drying prior to sub-division into the units supplied for the comparison.

Aldrin was selected to be representative of the performance of a laboratory's measurement capability for the purity assignment of organic compounds of medium structural complexity [molar mass range 300 Da to 500 Da] and low polarity (pKOW &lt; -2) for which related structure impurities can be quantified by capillary gas phase chromatography (GC).

The key comparison reference value (KCRV) for the aldrin content of the material was 950.8 mg/g with a combined standard uncertainty of 0.85 mg/g. The KCRV was assigned by combination of KCRVs assigned by consensus from participant results for each orthogonal impurity class. The relative expanded uncertainties reported by laboratories having results consistent with the KCRV ranged from 0.3% to 0.6% using a mass balance approach and 0.5% to 1% using a qNMR method.

The major analytical challenge posed by the material proved to be the detection and quantification of a significant amount of oligomeric organic material within the sample and most participants relying on a mass balance approach displayed a positive bias relative to the KCRV (overestimation of aldrin content) in excess of 10 mg/g due to not having adequate procedures in place to detect and quantify the non-volatile content–specifically the non-volatile organics content–of the comparison sample.

There was in general excellent agreement between participants in the identification and the quantification of the total and individual related structure impurities, water content and the residual solvent content of the sample.

The comparison demonstrated the utility of 1H NMR as an independent method for quantitative analysis of high purity compounds. In discussion of the participant results it was noted that while several had access to qNMR estimates for the aldrin content that were inconsistent with their mass balance determination they decided to accept the mass balance result and assumed a hidden bias in their NMR data. By contrast, laboratories that placed greater confidence in their qNMR result were able to resolve the discrepancy through additional studies that provided evidence of the presence of non-volatile organic impurity at the requisite level to bring their mass balance and qNMR estimates into agreement.</abstract>
    <parentTitle language="eng">Metrologia</parentTitle>
    <identifier type="old">29613</identifier>
    <identifier type="doi">10.1088/0026-1394/49/1A/08014</identifier>
    <identifier type="issn">0026-1394</identifier>
    <identifier type="issn">1681-7575</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">26.10.2012</enrichment>
    <author>S. Westwood</author>
    <author>R. Josephs</author>
    <author>T. Choteau</author>
    <author>A. Daireaux</author>
    <author>C. Mesquida</author>
    <author>R. Wielgosz</author>
    <author>A. Rosso</author>
    <author>M.R. de Arechavaleta</author>
    <author>S. Davies</author>
    <author>H. Wang</author>
    <author>E.C.P. do Rego</author>
    <author>J.M. Rodrigues</author>
    <author>E. de Freitas Guimaraes</author>
    <author>M.V.B. Sousa</author>
    <author>T.M. Monteiro</author>
    <author>L.A. das Neves Valente</author>
    <author>F.G.M. Violante</author>
    <author>R. R. R. Almeida</author>
    <author>M.C.B. Quaresma</author>
    <author>R. Nogueira</author>
    <author>A. Windust</author>
    <author>X. Dai</author>
    <author>X. Li</author>
    <author>W. Zhang</author>
    <author>M. Li</author>
    <author>M. Shao</author>
    <author>C. Wei</author>
    <author>S.-K. Wong</author>
    <author>J. Cabillic</author>
    <author>F. Gantois</author>
    <author>Rosemarie Philipp</author>
    <author>Dietmar Pfeifer</author>
    <author>Sebastian Hein</author>
    <author>Urszula-Anna Klyk-Seitz</author>
    <author>K. Ishikawa</author>
    <author>E. Castro</author>
    <author>N. Gonzalez</author>
    <author>A. Krylov</author>
    <author>T.T. Lin</author>
    <author>L.T. Kooi</author>
    <author>M. Fernandes-Whaley</author>
    <author>D. Prévoo</author>
    <author>M. Archer</author>
    <author>R. Visser</author>
    <author>N. Nlhapo</author>
    <author>B. de Vos</author>
    <author>S. Ahn</author>
    <author>P. Pookrod</author>
    <author>K. Wiangnon</author>
    <author>N. Sudsiri</author>
    <author>K. Muaksang</author>
    <author>C. Cherdchu</author>
    <author>A.C. Gören</author>
    <author>M. Bilsel</author>
    <author>T. LeGoff</author>
    <author>D. Bearden</author>
    <author>M. Bedner</author>
    <author>D. Duewer</author>
    <author>D. Hancock</author>
    <author>B. Lang</author>
    <author>K. Lippa</author>
    <author>M. Schantz</author>
    <author>j. Sieber</author>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>57019</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>23</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>148</volume>
    <type>article</type>
    <publisherName>Elsevier Science</publisherName>
    <publisherPlace>Oxford</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">8-MW wind turbine tower computational shell buckling benchmark - Part 1: An international ‘round-robin’ exercise</title>
    <abstract language="deu">An assessment of the elastic-plastic buckling limit state for multi-strake wind turbine support towers poses a particular challenge for the modern finite element analyst, who must competently navigate numerous modelling choices related to the tug-of-war between meshing and computational cost, the use of solvers that are robust to highly nonlinear behaviour, the potential for multiple near-simultaneously critical failure locations, the complex issue of imperfection sensitivity and finally the interpretation of the data into a safe and economic design.&#13;
This paper reports on an international ‘round-robin’ exercise conducted in 2022 aiming to take stock of the computational shell buckling expertise around the world which attracted 29 submissions. Participants were asked to perform analyses of increasing complexity on a standardised benchmark of an 8-MW multi-strake steel wind turbine support tower segment, from a linear elastic stress analysis to a linear bifurcation analysis to a geometrically and materially nonlinear buckling analysis with imperfections. The results are a showcase of the significant shell buckling expertise now available in both industry and academia.&#13;
This paper is the first of a pair. The second paper presents a detailed reference solution to the benchmark, including an illustration of the Eurocode-compliant calibration of two important imperfection forms.</abstract>
    <parentTitle language="eng">Engineering failure analysis</parentTitle>
    <identifier type="doi">10.1016/j.engfailanal.2023.107124</identifier>
    <identifier type="issn">1350-6307</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="date_peer_review">19.06.2023</enrichment>
    <author>A. Sadowski</author>
    <author>M. Seidel</author>
    <author>H. Al-Lawati</author>
    <author>E. Azizi</author>
    <author>Hagen Balscheit</author>
    <author>M. Böhm</author>
    <author>Lei Chen</author>
    <author>I. van Dijk</author>
    <author>C. Doerich-Stavridis</author>
    <author>O. Kunle Fajuyitan</author>
    <author>A. Filippidis</author>
    <author>A. Winther Fischer</author>
    <author>C. Fischer</author>
    <author>S. Gerasimidis</author>
    <author>H. Karampour</author>
    <author>L. Kathirkamanathan</author>
    <author>S. Subramanian</author>
    <author>Cem Topkaya</author>
    <author>H. N.  R. Wagner</author>
    <author>J. Wang</author>
    <author>J. Wang</author>
    <author>K. Kumar Yadav</author>
    <author>X. Yun</author>
    <author>P. Zhang</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Wind turbine tower</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Computational</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Shell buckling</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Benchmark</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="institutes" number="">7 Bauwerkssicherheit</collection>
    <collection role="institutes" number="">7.2 Ingenieurbau</collection>
    <collection role="themenfelder" number="">Energie</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>56893</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>11</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>281</volume>
    <type>article</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace>Amsterdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">What is the mechanism of the fiber effect on the rheological behavior of cement paste with polycarboxylate superplasticizer?</title>
    <abstract language="eng">Compared with most common construction materials, fiber reinforced cementitious materials are well known to exhibit better physical, working and mechanical properties. In this study, three fibers were selected: polypropylene fiber (PPF) and polyvinyl alcohol fiber (PVAF), which represented synthetic fibers, and sisal fiber (SF), which represented natural fibers. Effects of these fibers on the flowability, rheological properties, and adsorption behavior of the cement paste with polycarboxylate superplasticizer (PCE) were investigated. Furthermore, the above experimental results were verified by measuring the contact angle of the fiber with water and PCE solution and the apparent morphology of the fiber. Results revealed that the addition of fibers significantly reduces the fluidity of the cement paste, while the yield stress and plastic viscosity of the cement paste increase with the addition of fibers. From the contact angle and scanning electron microscope, the surface of SF was relatively rough, and the contact angle of SF with water or PCE solution was the smallest. It can be concluded that the plant fiber has a significant influence on the fluidity and rheology of cement paste.</abstract>
    <parentTitle language="eng">Construction and building materials</parentTitle>
    <identifier type="issn">0950-0618</identifier>
    <identifier type="doi">10.1016/j.conbuildmat.2021.122542</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <enrichment key="date_peer_review">25.01.2023</enrichment>
    <author>Kun Zhang</author>
    <author>L. Pan</author>
    <author>J. Li</author>
    <author>C. Lin</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cement paste</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polycarboxylate superplasticizer</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polypropylene fiber</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Polyvinyl alcohol fiber</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sisal fiber</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Rheological property</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fluidity</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Adsorption</value>
    </subject>
    <collection role="ddc" number="620">Ingenieurwissenschaften und zugeordnete Tätigkeiten</collection>
    <collection role="ddc" number="624">Ingenieurbau</collection>
    <collection role="institutes" number="">7 Bauwerkssicherheit</collection>
    <collection role="institutes" number="">7.4 Baustofftechnologie</collection>
    <collection role="themenfelder" number="">Infrastruktur</collection>
    <collection role="themenfelder" number="">Material</collection>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
  <doc>
    <id>49922</id>
    <completedYear/>
    <publishedYear>2019</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>030004-1</pageFirst>
    <pageLast>030004-9</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>2102</volume>
    <type>conferenceobject</type>
    <publisherName>American Institute of Physics</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Paper Watermark Imaging using Electron and Low Energy X-ray Radiography</title>
    <abstract language="eng">Historians and librarians are interested in watermarks and mould surface patterns in historic papers, because they represent the “fingerprints” of antique papers. However, these features are usually covered or hidden by printing, writing or other media. Different techniques have been developed to extract the watermarks in the paper while avoiding interference from media on the paper. Beta radiography provides good results, but this method cannot be widely used because of radiation safety regulations and the long exposure times required due to weak isotope sources employed. In this work, two promising methods are compared which can be used to extract digital high-resolution images for paper watermarks and these are electron radiography and low energy X-ray radiography. For electron radiography a “sandwich” of a lead sheet, the paper object, and a film in a dark cassette, is formed and it is exposed at higher X-ray potentials (&gt; 300 kV). The photoelectrons escaping from the lead sheet penetrate the paper and expose the film. After development, the film captures the watermark and mould surface pattern Images for the paper being investigated. These images are then digitized using an X-ray film digitizer. The film employed could potentially be replaced by a special type of imaging plate with a very thin protection layer to directly generate digital Images using computed radiography (CR). For the second method, a low energy X-ray source is used with the specimen paper placed on a digital detector array (DDA). This method directly generates a low energy digital radiography (DR) image. Both methods provide high quality images without interference from the printing media, and provide the potential to generate a “fingerprint”&#13;
database for historical papers. There were nevertheless found to be differences in the images obtained using the two methods.&#13;
The second method, using a low energy X-ray source, has the potential to be integrated in a portable device with a small footprint incorporating user safety requirements. Differences obtained using the two methods are shown and discussed.</abstract>
    <parentTitle language="eng">AIP Conference Proceedings</parentTitle>
    <identifier type="isbn">978-0-7354-1832-5</identifier>
    <identifier type="doi">10.1063/1.5099750</identifier>
    <identifier type="issn">0094-243X</identifier>
    <enrichment key="eventName">45th Annual Conference on Review of Progress in Quantitative Nondestructive Evaluation (QNDE)</enrichment>
    <enrichment key="eventPlace">Burlington, VT, USA</enrichment>
    <enrichment key="eventStart">15.07.2018</enrichment>
    <enrichment key="eventEnd">19.07.2018</enrichment>
    <enrichment key="date_peer_review">05.12.2019</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <author>Zhang Z.</author>
    <author>Uwe Ewert</author>
    <author>T. D. Barrett</author>
    <author>L. J. Bond</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>X-ray Radiography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Paper watermark</value>
    </subject>
    <collection role="ddc" number="543">Analytische Chemie</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
    <collection role="literaturgattung" number="">Graue Literatur</collection>
  </doc>
  <doc>
    <id>21045</id>
    <completedYear/>
    <publishedYear>2010</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>08011-1 - 08011-15</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>1A</issue>
    <volume>47</volume>
    <type>article</type>
    <publisherName>Inst. of Physics Publ.</publisherName>
    <publisherPlace>Bristol</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Final report on key comparison K67 and parallel pilot study P108: measurement of composition of a thin Fe-Ni alloy film</title>
    <abstract language="eng">The Key Comparison K67 and the parallel Pilot Study P108 on quantitative analysis of thin alloy films have been completed in the Surface Analysis Working Group (SAWG) of the Consultative Committee for Amount of Substance (CCQM). The aim of these inter-laboratory comparisons is to determine the degree of equivalence in the measurement capability of national metrology institutes (NMIs) and designated institutes (DIs) for the determination of the composition of thin alloy films. The measurand is expressed in atomic percent. A Fe-Ni alloy film with a certified composition was available for the participants of the inter-laboratory comparison. It has been used as a reference specimen to determine the relative sensitivity factors (RSF) of Fe and Ni for the different analytical methods used by the participants to determine the composition of the test sample. As was shown in the preceding Pilot Study P98, the degrees of equivalence in the measurement capabilities of the participants can be improved in that way. The composition of the reference specimen was certified by inductively coupled plasma mass spectrometry (ICP-MS) using the isotope dilution method. The in-depth and lateral homogeneity, determined in terms of elemental composition, of the certified reference sample and the unknown test sample were confirmed by secondary ion mass spectrometry (SIMS) using C60 primary ions by the leading laboratory. Five laboratories participated in the key comparison. Four of them used x-ray photoelectron spectroscopy (XPS) and one Auger electron spectroscopy (AES). One laboratory participated in the parallel P108 pilot study using electron probe micro analysis with an energy-dispersive spectrometer (ED EPMA) and XPS.</abstract>
    <parentTitle language="eng">Metrologia</parentTitle>
    <identifier type="old">23394</identifier>
    <identifier type="doi">10.1088/0026-1394/47/1A/08011</identifier>
    <identifier type="issn">0026-1394</identifier>
    <identifier type="issn">1681-7575</identifier>
    <enrichment key="bibliotheksstandort">Sonderstandort: Publica-Schrank</enrichment>
    <enrichment key="date_peer_review">25.03.2010</enrichment>
    <author>K.J. Kim</author>
    <author>J.W. Kim</author>
    <author>D.W. Moon</author>
    <author>Thomas Wirth</author>
    <author>Vasile-Dan Hodoroaba</author>
    <author>Thomas Gross</author>
    <author>Wolfgang Unger</author>
    <author>W. Jordaan</author>
    <author>M.v. Staden</author>
    <author>S. Prins</author>
    <author>H. Wang</author>
    <author>X. Song</author>
    <author>L. Zhang</author>
    <author>T. Fujimoto</author>
    <author>I. Kojima</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>XPS</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>AES</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EDX</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fe-Ni alloy film</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Key comparison</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CCQM</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")</collection>
  </doc>
  <doc>
    <id>24505</id>
    <completedYear/>
    <publishedYear>2012</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>192</pageFirst>
    <pageLast>199</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>44</volume>
    <type>article</type>
    <publisherName>Wiley</publisherName>
    <publisherPlace>Chichester</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>1</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Inter-laboratory comparison: quantitative surface analysis of thin Fe-Ni alloy films</title>
    <abstract language="eng">An international interlaboratory comparison of the measurement capabilities of four National Metrology Institutes (NMIs) and one Designated Institute (DI) in the determination of the chemical composition of thin Fe-Ni alloy films was conducted via a key comparison (K-67) of the Surface Analysis Working Group of the Consultative Committee for Amount of Substance. This comparison was made using XPS (four laboratories) and AES (one laboratory) measurements. The uncertainty budget of the measured chemical composition of a thin alloy film was dominated by the uncertainty of the certified composition of a reference specimen which had been determined by inductively coupled plasma mass spectrometry using the isotope dilution method. Pilot study P-98 showed that the quantification using relative sensitivity factors (RSFs) of Fe and Ni derived from an alloy reference sample results in much more accurate result in comparison to an approach using RSFs derived from pure Fe and Ni films. The individual expanded uncertainties of the participants in the K-67 comparison were found to be between 2.88 and 3.40 atomic %. The uncertainty of the key comparison reference value (KCRV) calculated from individual standard deviations and a coverage factor (k) of 2 was 1.23 atomic %.</abstract>
    <parentTitle language="eng">Surface and interface analysis</parentTitle>
    <identifier type="old">27177</identifier>
    <identifier type="doi">10.1002/sia.3795</identifier>
    <identifier type="issn">0142-2421</identifier>
    <identifier type="issn">1096-9918</identifier>
    <enrichment key="date_peer_review">24.10.2011</enrichment>
    <author>K.J. Kim</author>
    <author>Wolfgang Unger</author>
    <author>J.W. Kim</author>
    <author>D.W. Moon</author>
    <author>Thomas Gross</author>
    <author>Vasile-Dan Hodoroaba</author>
    <author>Dieter Schmidt</author>
    <author>Thomas Wirth</author>
    <author>W. Jordaan</author>
    <author>M. van Staden</author>
    <author>S. Prins</author>
    <author>L. Zhang</author>
    <author>T. Fujimoto</author>
    <author>X.P. Song</author>
    <author>H. Wang</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Quantification</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Fe-Ni alloy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Uncertainty</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Key comparison</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Traceability</value>
    </subject>
    <collection role="literaturgattung" number="">Verlagsliteratur</collection>
    <collection role="fulltextaccess" number="">Datei im Netzwerk der BAM verfügbar ("Closed Access")</collection>
  </doc>
</export-example>
