--- _id: '13175' abstract: - lang: eng text: "Today, organizations must deal with a plethora of IT security threats and to ensure smooth and\r\nuninterrupted business operations, firms are challenged to predict the volume of IT security vulnerabilities\r\nand allocate resources for fixing them. This challenge requires decision makers to assess\r\nwhich system or software packages are prone to vulnerabilities, how many post-release vulnerabilities\r\ncan be expected to occur during a certain period of time, and what impact exploits might have.\r\nSubstantial research has been dedicated to techniques that analyze source code and detect security\r\nvulnerabilities. However, only limited research has focused on forecasting security vulnerabilities\r\nthat are detected and reported after the release of software. To address this shortcoming, we apply\r\nestablished methodologies which are capable of forecasting events exhibiting specific time series\r\ncharacteristics of security vulnerabilities, i.e., rareness of occurrence, volatility, non-stationarity,\r\nand seasonality. Based on a dataset taken from the National Vulnerability Database (NVD), we use\r\nthe Mean Absolute Error (MAE) and Root Mean Square Error (RMSE) to measure the forecasting\r\naccuracy of single, double, and triple exponential smoothing methodologies, Croston's methodology,\r\nARIMA, and a neural network-based approach. We analyze the impact of the applied forecasting\r\nmethodology on the prediction accuracy with regard to its robustness along the dimensions of the\r\nexamined system and software package \"operating systems\", \"browsers\" and \"office solutions\" and\r\nthe applied metrics. To the best of our knowledge, this study is the first to analyze the effect\r\nof forecasting methodologies and to apply metrics that are suitable in this context. Our results\r\nshow that the optimal forecasting methodology depends on the software or system package, as some\r\nmethodologies perform poorly in the context of IT security vulnerabilities, that absolute metrics\r\ncan cover the actual prediction error precisely, and that the prediction accuracy is robust within the\r\ntwo applied forecasting-error metrics." article_type: original author: - first_name: Emrah full_name: Yasasin, Emrah last_name: Yasasin - first_name: Julian full_name: Prester, Julian last_name: Prester - first_name: Gerit full_name: Wagner, Gerit last_name: Wagner - first_name: Guido full_name: Schryen, Guido id: '72850' last_name: Schryen citation: ama: Yasasin E, Prester J, Wagner G, Schryen G. Forecasting IT Security Vulnerabilities - An Empirical Analysis. Computers & Security. 2020;88(January). apa: Yasasin, E., Prester, J., Wagner, G., & Schryen, G. (2020). Forecasting IT Security Vulnerabilities - An Empirical Analysis. Computers & Security, 88(January). bibtex: '@article{Yasasin_Prester_Wagner_Schryen_2020, title={Forecasting IT Security Vulnerabilities - An Empirical Analysis}, volume={88}, number={January}, journal={Computers & Security}, author={Yasasin, Emrah and Prester, Julian and Wagner, Gerit and Schryen, Guido}, year={2020} }' chicago: Yasasin, Emrah, Julian Prester, Gerit Wagner, and Guido Schryen. “Forecasting IT Security Vulnerabilities - An Empirical Analysis.” Computers & Security 88, no. January (2020). ieee: E. Yasasin, J. Prester, G. Wagner, and G. Schryen, “Forecasting IT Security Vulnerabilities - An Empirical Analysis,” Computers & Security, vol. 88, no. January, 2020. mla: Yasasin, Emrah, et al. “Forecasting IT Security Vulnerabilities - An Empirical Analysis.” Computers & Security, vol. 88, no. January, 2020. short: E. Yasasin, J. Prester, G. Wagner, G. Schryen, Computers & Security 88 (2020). date_created: 2019-09-09T18:24:45Z date_updated: 2022-10-19T15:27:51Z ddc: - '000' department: - _id: '195' - _id: '277' file: - access_level: open_access content_type: application/pdf creator: schryen date_created: 2019-09-09T18:24:35Z date_updated: 2019-09-09T18:24:35Z file_id: '13176' file_name: Forecasting_IT_Security_Vulnerabilities.pdf file_size: 894663 relation: main_file file_date_updated: 2019-09-09T18:24:35Z has_accepted_license: '1' intvolume: ' 88' issue: January language: - iso: eng oa: '1' publication: Computers & Security publication_identifier: issn: - 0167-4048 publication_status: published status: public title: Forecasting IT Security Vulnerabilities - An Empirical Analysis type: journal_article user_id: '72850' volume: 88 year: '2020' ... --- _id: '20344' author: - first_name: Christian Roman full_name: Bielak, Christian Roman id: '34782' last_name: Bielak - first_name: Max full_name: Böhnke, Max id: '45779' last_name: Böhnke - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 citation: ama: Bielak CR, Böhnke M, Bobbert M, Meschut G. Development of a numerical method for analyzing the robustness of clinching in versatile process chains. apa: Bielak, C. R., Böhnke, M., Bobbert, M., & Meschut, G. (n.d.). Development of a numerical method for analyzing the robustness of clinching in versatile process chains. Material Science and Engineering Congress - MSE 2020, Darmstadt. bibtex: '@inproceedings{Bielak_Böhnke_Bobbert_Meschut, place={Material Science and Engineering Congress - MSE 2020}, title={Development of a numerical method for analyzing the robustness of clinching in versatile process chains}, author={Bielak, Christian Roman and Böhnke, Max and Bobbert, Mathias and Meschut, Gerson} }' chicago: Bielak, Christian Roman, Max Böhnke, Mathias Bobbert, and Gerson Meschut. “Development of a numerical method for analyzing the robustness of clinching in versatile process chains.” Material Science and Engineering Congress - MSE 2020, n.d. ieee: C. R. Bielak, M. Böhnke, M. Bobbert, and G. Meschut, “Development of a numerical method for analyzing the robustness of clinching in versatile process chains,” presented at the Material Science and Engineering Congress - MSE 2020, Darmstadt. mla: Bielak, Christian Roman, et al. Development of a numerical method for analyzing the robustness of clinching in versatile process chains. short: 'C.R. Bielak, M. Böhnke, M. Bobbert, G. Meschut, in: Material Science and Engineering Congress - MSE 2020, n.d.' conference: end_date: 25 September 2020 location: Darmstadt name: Material Science and Engineering Congress - MSE 2020 start_date: 22 September 2020 date_created: 2020-11-12T13:38:45Z date_updated: 2023-01-02T12:01:43Z ddc: - '670' - '620' department: - _id: '157' - _id: '630' file: - access_level: open_access content_type: application/pdf creator: chbielak date_created: 2022-11-29T13:23:05Z date_updated: 2022-11-29T13:23:05Z description: In many areas of product manufacturing individual components are usually joined together to form complex structures with numerous joints. Using mechanical joining technologies offers the possibility of joining structures with a wide range of material-geometry combinations. In order to realize the increasing number of varying products using different materials and designs within a process chain, they need to be versatile. file_id: '34158' file_name: Development of a numerical method for analyzing the robustness of clinching in versatile process chains.pdf file_size: 2657497 relation: main_file title: Development of a numerical method for analyzing the robustness of clinching in versatile process chains file_date_updated: 2022-11-29T13:23:05Z has_accepted_license: '1' language: - iso: ger - iso: eng license: https://creativecommons.org/licenses/by-nc-sa/4.0/ oa: '1' place: Material Science and Engineering Congress - MSE 2020 project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' publication_status: accepted related_material: link: - description: "In many areas of product manufacturing individual components are usually joined together to form complex structures with numerous joints. Mechanical joining technology offers the possibility of joining structures with a wide range of material-geometry combinations. In order to realize the increasing number of varying products using different materials and designs within a process chain, they need to be versatile.\r\n\r\nDue to changing properties of the materials to be joined, tool geometries and process variables in mechanical joining processes, especially clinching, must be continuously adapted which results in a limited versatility of the process. In this regard, it is necessary to examine the robustness of the clinching process in versatile process chains. Therefore, a method is developed which describes the joint characteristics based on the material properties in order to enable the investigation of the clinching process regarding the robustness concerning continuously changing process and material conditions.\r\n\r\nThe predictive accuracy of numerical simulations for mechanical joining processes depends on the implemented material model, especially the plasticity of the joining parts. Therefore, experimental material characterization processes are used to determine material properties. Furthermore, clinched joints in different material combinations are experimentally generated and examined. Based on these investigations a simulation model of the joining process is developed as 2D-Clinching FEM model in LS-Dyna. The Validation of the developed simulation model is ensured by comparing the geometric formation of the joint and force-displacement curves of the joining process with experimental generated joints. By combining the simulation model with an optimization tool (LS-OPT) the influence of different parameters on the joint characteristics is determined and the robustness of the joining process in versatile process chains is investigated." relation: confirmation url: https://www.mse-congress.de/program/scientific-program/?tx_dgmprogram_fullprogram%5Bsession%5D=9629&tx_dgmprogram_fullprogram%5Baction%5D=show&tx_dgmprogram_fullprogram%5Bcontroller%5D=Session&cHash=84006c1cdd38f631b19682a33e47111e status: public title: Development of a numerical method for analyzing the robustness of clinching in versatile process chains type: conference_abstract user_id: '14931' year: '2020' ... --- _id: '16301' article_type: original author: - first_name: Bernhard full_name: Atorf, Bernhard last_name: Atorf - first_name: Holger full_name: Mühlenbernd, Holger last_name: Mühlenbernd - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Heinz-Siegfried full_name: Kitzerow, Heinz-Siegfried id: '254' last_name: Kitzerow citation: ama: Atorf B, Mühlenbernd H, Zentgraf T, Kitzerow H-S. All-optical switching of a dye-doped liquid crystal plasmonic metasurface. Optics Express. 2020;28(6):8898-8908. doi:10.1364/oe.383877 apa: Atorf, B., Mühlenbernd, H., Zentgraf, T., & Kitzerow, H.-S. (2020). All-optical switching of a dye-doped liquid crystal plasmonic metasurface. Optics Express, 28(6), 8898–8908. https://doi.org/10.1364/oe.383877 bibtex: '@article{Atorf_Mühlenbernd_Zentgraf_Kitzerow_2020, title={All-optical switching of a dye-doped liquid crystal plasmonic metasurface}, volume={28}, DOI={10.1364/oe.383877}, number={6}, journal={Optics Express}, author={Atorf, Bernhard and Mühlenbernd, Holger and Zentgraf, Thomas and Kitzerow, Heinz-Siegfried}, year={2020}, pages={8898–8908} }' chicago: 'Atorf, Bernhard, Holger Mühlenbernd, Thomas Zentgraf, and Heinz-Siegfried Kitzerow. “All-Optical Switching of a Dye-Doped Liquid Crystal Plasmonic Metasurface.” Optics Express 28, no. 6 (2020): 8898–8908. https://doi.org/10.1364/oe.383877.' ieee: 'B. Atorf, H. Mühlenbernd, T. Zentgraf, and H.-S. Kitzerow, “All-optical switching of a dye-doped liquid crystal plasmonic metasurface,” Optics Express, vol. 28, no. 6, pp. 8898–8908, 2020, doi: 10.1364/oe.383877.' mla: Atorf, Bernhard, et al. “All-Optical Switching of a Dye-Doped Liquid Crystal Plasmonic Metasurface.” Optics Express, vol. 28, no. 6, 2020, pp. 8898–908, doi:10.1364/oe.383877. short: B. Atorf, H. Mühlenbernd, T. Zentgraf, H.-S. Kitzerow, Optics Express 28 (2020) 8898–8908. date_created: 2020-03-15T18:03:20Z date_updated: 2023-01-10T13:18:30Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '313' doi: 10.1364/oe.383877 intvolume: ' 28' issue: '6' language: - iso: eng main_file_link: - open_access: '1' oa: '1' page: 8898-8908 publication: Optics Express publication_identifier: issn: - 1094-4087 publication_status: published quality_controlled: '1' status: public title: All-optical switching of a dye-doped liquid crystal plasmonic metasurface type: journal_article user_id: '14931' volume: 28 year: '2020' ... --- _id: '31361' abstract: - lang: eng text: At Paderborn University, a new 6th semester geometry-course for upper secondary student teachers has been designed and taught by the first author of this paper. To show links between academic mathematics and school mathematics we established so-called interface weeks. These are weeks during a course in which lecture, exercises and homework focus on topics that are related to the normal canon of content but specially chosen for their relevance in school contexts. In this article, we want to present our design for an interface week on the topic of congruence. In order to do so, we first illustrate how so-called interface aspects are used to systematize the mathematical background of the topic, thus giving future mathematics teachers the chance to act professionally. We then show examples of learning activities and first results of the accompanying research. author: - first_name: Max full_name: Hoffmann, Max id: '32202' last_name: Hoffmann orcid: 0000-0002-6964-7123 - first_name: Rolf full_name: Biehler, Rolf id: '16274' last_name: Biehler citation: ama: 'Hoffmann M, Biehler R. Designing a Geometry Capstone Course for Student Teachers: Bridging the gap between academic mathematics and school mathematics in the case of congruence. In: INDRUM 2020, Université de Carthage, Université de Montpellier, Sep 2020, Cyberspace (Virtually from Bizerte), Tunisia. ; 2020.' apa: 'Hoffmann, M., & Biehler, R. (2020). Designing a Geometry Capstone Course for Student Teachers: Bridging the gap between academic mathematics and school mathematics in the case of congruence. INDRUM 2020, Université de Carthage, Université de Montpellier, Sep 2020, Cyberspace (Virtually from Bizerte), Tunisia.' bibtex: '@inproceedings{Hoffmann_Biehler_2020, title={Designing a Geometry Capstone Course for Student Teachers: Bridging the gap between academic mathematics and school mathematics in the case of congruence}, booktitle={ INDRUM 2020, Université de Carthage, Université de Montpellier, Sep 2020, Cyberspace (virtually from Bizerte), Tunisia}, author={Hoffmann, Max and Biehler, Rolf}, year={2020} }' chicago: 'Hoffmann, Max, and Rolf Biehler. “Designing a Geometry Capstone Course for Student Teachers: Bridging the Gap between Academic Mathematics and School Mathematics in the Case of Congruence.” In INDRUM 2020, Université de Carthage, Université de Montpellier, Sep 2020, Cyberspace (Virtually from Bizerte), Tunisia, 2020.' ieee: 'M. Hoffmann and R. Biehler, “Designing a Geometry Capstone Course for Student Teachers: Bridging the gap between academic mathematics and school mathematics in the case of congruence,” 2020.' mla: 'Hoffmann, Max, and Rolf Biehler. “Designing a Geometry Capstone Course for Student Teachers: Bridging the Gap between Academic Mathematics and School Mathematics in the Case of Congruence.” INDRUM 2020, Université de Carthage, Université de Montpellier, Sep 2020, Cyberspace (Virtually from Bizerte), Tunisia, 2020.' short: 'M. Hoffmann, R. Biehler, in: INDRUM 2020, Université de Carthage, Université de Montpellier, Sep 2020, Cyberspace (Virtually from Bizerte), Tunisia, 2020.' date_created: 2022-05-22T10:22:34Z date_updated: 2023-01-11T15:29:45Z language: - iso: eng main_file_link: - open_access: '1' url: https://hal.archives-ouvertes.fr/hal-03113956/ oa: '1' publication: ' INDRUM 2020, Université de Carthage, Université de Montpellier, Sep 2020, Cyberspace (virtually from Bizerte), Tunisia' quality_controlled: '1' status: public title: 'Designing a Geometry Capstone Course for Student Teachers: Bridging the gap between academic mathematics and school mathematics in the case of congruence' type: conference user_id: '32202' year: '2020' ... --- _id: '36263' author: - first_name: Jutta full_name: Weber, Jutta id: '31494' last_name: Weber citation: ama: 'Weber J. Skynet oder Slaughterbots. Schwarmintelligenz in Militär, Politik und Populärkultur. Wissenschaft & Frieden 2020-3: Der kranke Planet Beilage. Published online 2020.' apa: 'Weber, J. (2020). Skynet oder Slaughterbots. Schwarmintelligenz in Militär, Politik und Populärkultur. Wissenschaft & Frieden 2020-3: Der kranke Planet. Beilage.' bibtex: '@article{Weber_2020, title={Skynet oder Slaughterbots. Schwarmintelligenz in Militär, Politik und Populärkultur}, journal={Wissenschaft & Frieden 2020-3: Der kranke Planet. Beilage}, publisher={Hg. von der Informationsstelle Wissenschaft und Frieden e.V. zus. mit der Kampagne »Killer Roboter stoppen!«}, author={Weber, Jutta}, year={2020} }' chicago: 'Weber, Jutta. “Skynet oder Slaughterbots. Schwarmintelligenz in Militär, Politik und Populärkultur.” Wissenschaft & Frieden 2020-3: Der kranke Planet. Beilage, 2020.' ieee: 'J. Weber, “Skynet oder Slaughterbots. Schwarmintelligenz in Militär, Politik und Populärkultur,” Wissenschaft & Frieden 2020-3: Der kranke Planet. Beilage, 2020.' mla: 'Weber, Jutta. “Skynet oder Slaughterbots. Schwarmintelligenz in Militär, Politik und Populärkultur.” Wissenschaft & Frieden 2020-3: Der kranke Planet. Beilage, Hg. von der Informationsstelle Wissenschaft und Frieden e.V. zus. mit der Kampagne »Killer Roboter stoppen!«, 2020.' short: 'J. Weber, Wissenschaft & Frieden 2020-3: Der kranke Planet. Beilage (2020).' date_created: 2023-01-12T06:33:31Z date_updated: 2023-01-12T06:36:45Z department: - _id: '411' language: - iso: ger main_file_link: - open_access: '1' url: https://juttaweber.eu/wordpress/wp-content/uploads/2021/03/Weber_Skynet-oder-Slaughterbots_preprint.pdf oa: '1' publication: 'Wissenschaft & Frieden 2020-3: Der kranke Planet. Beilage' publisher: Hg. von der Informationsstelle Wissenschaft und Frieden e.V. zus. mit der Kampagne »Killer Roboter stoppen!« status: public title: Skynet oder Slaughterbots. Schwarmintelligenz in Militär, Politik und Populärkultur type: journal_article user_id: '14932' year: '2020' ... --- _id: '36265' author: - first_name: Jutta full_name: Weber, Jutta id: '31494' last_name: Weber citation: ama: 'Weber J. Introduction: Technosecurity Cultures. Technosecurity Cultures, Sonderausgabe „Science as Culture“ (Hg: Jutta Weber/Katrin M Kämpf). 2020;Vol. 29(1):1-10.' apa: 'Weber, J. (2020). Introduction: Technosecurity Cultures. Technosecurity Cultures, Sonderausgabe „Science as Culture“ (Hg.: Jutta Weber/Katrin M. Kämpf), Vol. 29(1), 1–10.' bibtex: '@article{Weber_2020, title={Introduction: Technosecurity Cultures}, volume={Vol. 29(1)}, journal={Technosecurity Cultures, Sonderausgabe „Science as Culture“ (Hg.: Jutta Weber/Katrin M. Kämpf)}, author={Weber, Jutta}, year={2020}, pages={1–10} }' chicago: 'Weber, Jutta. “Introduction: Technosecurity Cultures.” Technosecurity Cultures, Sonderausgabe „Science as Culture“ (Hg.: Jutta Weber/Katrin M. Kämpf) Vol. 29(1) (2020): 1–10.' ieee: 'J. Weber, “Introduction: Technosecurity Cultures,” Technosecurity Cultures, Sonderausgabe „Science as Culture“ (Hg.: Jutta Weber/Katrin M. Kämpf), vol. Vol. 29(1), pp. 1–10, 2020.' mla: 'Weber, Jutta. “Introduction: Technosecurity Cultures.” Technosecurity Cultures, Sonderausgabe „Science as Culture“ (Hg.: Jutta Weber/Katrin M. Kämpf), vol. Vol. 29(1), 2020, pp. 1–10.' short: 'J. Weber, Technosecurity Cultures, Sonderausgabe „Science as Culture“ (Hg.: Jutta Weber/Katrin M. Kämpf) Vol. 29(1) (2020) 1–10.' date_created: 2023-01-12T07:16:34Z date_updated: 2023-01-12T08:24:26Z department: - _id: '411' language: - iso: eng main_file_link: - open_access: '1' url: https://www.tandfonline.com/doi/full/10.1080/09505431.2019.1695769 oa: '1' page: 1-10 publication: 'Technosecurity Cultures, Sonderausgabe „Science as Culture“ (Hg.: Jutta Weber/Katrin M. Kämpf)' status: public title: 'Introduction: Technosecurity Cultures' type: journal_article user_id: '14932' volume: Vol. 29(1) year: '2020' ... --- _id: '21949' abstract: - lang: eng text: This paper presents the results of an interlaboratory study of the rheological properties of cement paste and ultrasound gel as reference substance. The goal was to quantify the comparability and reproducibility of measurements of the Bingham parameters yield stress and plastic viscosity when measured on one specific paste composition and one particular ultrasound gel in different laboratories using different rheometers and measurement geometries. The procedures for both in preparing the cement paste and carrying out the rheological measurements on cement paste and ultrasound gel were carefully defined for all of the study’s participants. Different conversion schemes for comparing the results obtained with the different measurement setups are presented here and critically discussed. The procedure proposed in this paper ensured a reasonable comparability of the results with a coefficient of variation for the yield stress of 27% and for the plastic viscosity of 24%, despite the individual measurement series’ having been performed in different labs with different rheometers and measurement geometries. article_type: original author: - first_name: Michael full_name: Haist, Michael last_name: Haist - first_name: Julian full_name: Link, Julian last_name: Link - first_name: David full_name: Nicia, David last_name: Nicia - first_name: Sarah full_name: Leinitz, Sarah last_name: Leinitz - first_name: Christian full_name: Baumert, Christian last_name: Baumert - first_name: Tabea full_name: von Bronk, Tabea last_name: von Bronk - first_name: Dario full_name: Cotardo, Dario last_name: Cotardo - first_name: Mahmoud full_name: Eslami Pirharati, Mahmoud last_name: Eslami Pirharati - first_name: Shirin full_name: Fataei, Shirin last_name: Fataei - first_name: Harald full_name: Garrecht, Harald last_name: Garrecht - first_name: Christoph full_name: Gehlen, Christoph last_name: Gehlen - first_name: Inga full_name: Hauschildt, Inga last_name: Hauschildt - first_name: Irina full_name: Ivanova, Irina last_name: Ivanova - first_name: Steffen full_name: Jesinghausen, Steffen id: '3959' last_name: Jesinghausen orcid: https://orcid.org/0000-0003-2611-5298 - first_name: Christopher full_name: Klein, Christopher last_name: Klein - first_name: Hans-W. full_name: Krauss, Hans-W. last_name: Krauss - first_name: Ludger full_name: Lohaus, Ludger last_name: Lohaus - first_name: Dirk full_name: Lowke, Dirk last_name: Lowke - first_name: Oliver full_name: Mazanec, Oliver last_name: Mazanec - first_name: Sebastian full_name: Pawelczyk, Sebastian last_name: Pawelczyk - first_name: Ursula full_name: Pott, Ursula last_name: Pott - first_name: Nonkululeko W. full_name: Radebe, Nonkululeko W. last_name: Radebe - first_name: Joachim Jürgen full_name: Riedmiller, Joachim Jürgen last_name: Riedmiller - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid - first_name: Wolfram full_name: Schmidt, Wolfram last_name: Schmidt - first_name: Egor full_name: Secrieru, Egor last_name: Secrieru - first_name: Dietmar full_name: Stephan, Dietmar last_name: Stephan - first_name: Mareike full_name: Thiedeitz, Mareike last_name: Thiedeitz - first_name: Manfred full_name: Wilhelm, Manfred last_name: Wilhelm - first_name: Viktor full_name: Mechtcherine, Viktor last_name: Mechtcherine citation: ama: 'Haist M, Link J, Nicia D, et al. Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries. Materials and Structures. Published online 2020. doi:10.1617/s11527-020-01477-w' apa: 'Haist, M., Link, J., Nicia, D., Leinitz, S., Baumert, C., von Bronk, T., Cotardo, D., Eslami Pirharati, M., Fataei, S., Garrecht, H., Gehlen, C., Hauschildt, I., Ivanova, I., Jesinghausen, S., Klein, C., Krauss, H.-W., Lohaus, L., Lowke, D., Mazanec, O., … Mechtcherine, V. (2020). Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries. Materials and Structures. https://doi.org/10.1617/s11527-020-01477-w' bibtex: '@article{Haist_Link_Nicia_Leinitz_Baumert_von Bronk_Cotardo_Eslami Pirharati_Fataei_Garrecht_et al._2020, title={Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries}, DOI={10.1617/s11527-020-01477-w}, journal={Materials and Structures}, author={Haist, Michael and Link, Julian and Nicia, David and Leinitz, Sarah and Baumert, Christian and von Bronk, Tabea and Cotardo, Dario and Eslami Pirharati, Mahmoud and Fataei, Shirin and Garrecht, Harald and et al.}, year={2020} }' chicago: 'Haist, Michael, Julian Link, David Nicia, Sarah Leinitz, Christian Baumert, Tabea von Bronk, Dario Cotardo, et al. “Interlaboratory Study on Rheological Properties of Cement Pastes and Reference Substances: Comparability of Measurements Performed with Different Rheometers and Measurement Geometries.” Materials and Structures, 2020. https://doi.org/10.1617/s11527-020-01477-w.' ieee: 'M. Haist et al., “Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries,” Materials and Structures, 2020, doi: 10.1617/s11527-020-01477-w.' mla: 'Haist, Michael, et al. “Interlaboratory Study on Rheological Properties of Cement Pastes and Reference Substances: Comparability of Measurements Performed with Different Rheometers and Measurement Geometries.” Materials and Structures, 2020, doi:10.1617/s11527-020-01477-w.' short: M. Haist, J. Link, D. Nicia, S. Leinitz, C. Baumert, T. von Bronk, D. Cotardo, M. Eslami Pirharati, S. Fataei, H. Garrecht, C. Gehlen, I. Hauschildt, I. Ivanova, S. Jesinghausen, C. Klein, H.-W. Krauss, L. Lohaus, D. Lowke, O. Mazanec, S. Pawelczyk, U. Pott, N.W. Radebe, J.J. Riedmiller, H.-J. Schmid, W. Schmidt, E. Secrieru, D. Stephan, M. Thiedeitz, M. Wilhelm, V. Mechtcherine, Materials and Structures (2020). date_created: 2021-05-04T08:49:44Z date_updated: 2023-01-17T07:42:21Z department: - _id: '150' doi: 10.1617/s11527-020-01477-w keyword: - Rheology - Wall Slip - Slip - apparent slip - suspension - cement - concrete language: - iso: eng main_file_link: - open_access: '1' url: https://link.springer.com/article/10.1617/s11527-020-01477-w oa: '1' publication: Materials and Structures publication_identifier: issn: - 1359-5997 - 1871-6873 publication_status: published quality_controlled: '1' status: public title: 'Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries' type: journal_article user_id: '3959' year: '2020' ... --- _id: '21948' abstract: - lang: eng text: Since suspensions (e.g., in food, cement, or cosmetics industries) tend to show wall slip, the application of structured measuring surfaces in rheometers is widespread. Usually, for parallel-plate geometries, the tip-to-tip distance is used for calculation of absolute rheological values, which implies that there is no flow behind this distance. However, several studies show that this is not true. Therefore, the measuring gap needs to be corrected by adding the effective gap extension δ to the prescribed gap height H in order to obtain absolute rheological properties. In this paper, we determine the effective gap extension δ for different structures and fluids (Newtonian, shear thinning, and model suspensions that can be adjusted to the behavior of real fluids) and compare the corrected values to reference data. We observe that for Newtonian fluids a gap- and material-independent correction function can be derived for every measuring system, which is also applicable to suspensions, but not to shear thinning fluids. Since this relation appears to be mainly dependent on the characteristics of flow behaviour, we show that the calibration of structured measuring systems is possible with Newtonian fluids and then can be transferred to suspensions up to a certain particle content. article_number: '467' article_type: original author: - first_name: Sebastian full_name: Pawelczyk, Sebastian id: '38243' last_name: Pawelczyk - first_name: Marieluise full_name: Kniepkamp, Marieluise last_name: Kniepkamp - first_name: Steffen full_name: Jesinghausen, Steffen id: '3959' last_name: Jesinghausen orcid: https://orcid.org/0000-0003-2611-5298 - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid citation: ama: 'Pawelczyk S, Kniepkamp M, Jesinghausen S, Schmid H-J. Absolute Rheological Measurements of Model Suspensions: Influence and Correction of Wall Slip Prevention Measures. Materials. Published online 2020. doi:10.3390/ma13020467' apa: 'Pawelczyk, S., Kniepkamp, M., Jesinghausen, S., & Schmid, H.-J. (2020). Absolute Rheological Measurements of Model Suspensions: Influence and Correction of Wall Slip Prevention Measures. Materials, Article 467. https://doi.org/10.3390/ma13020467' bibtex: '@article{Pawelczyk_Kniepkamp_Jesinghausen_Schmid_2020, title={Absolute Rheological Measurements of Model Suspensions: Influence and Correction of Wall Slip Prevention Measures}, DOI={10.3390/ma13020467}, number={467}, journal={Materials}, author={Pawelczyk, Sebastian and Kniepkamp, Marieluise and Jesinghausen, Steffen and Schmid, Hans-Joachim}, year={2020} }' chicago: 'Pawelczyk, Sebastian, Marieluise Kniepkamp, Steffen Jesinghausen, and Hans-Joachim Schmid. “Absolute Rheological Measurements of Model Suspensions: Influence and Correction of Wall Slip Prevention Measures.” Materials, 2020. https://doi.org/10.3390/ma13020467.' ieee: 'S. Pawelczyk, M. Kniepkamp, S. Jesinghausen, and H.-J. Schmid, “Absolute Rheological Measurements of Model Suspensions: Influence and Correction of Wall Slip Prevention Measures,” Materials, Art. no. 467, 2020, doi: 10.3390/ma13020467.' mla: 'Pawelczyk, Sebastian, et al. “Absolute Rheological Measurements of Model Suspensions: Influence and Correction of Wall Slip Prevention Measures.” Materials, 467, 2020, doi:10.3390/ma13020467.' short: S. Pawelczyk, M. Kniepkamp, S. Jesinghausen, H.-J. Schmid, Materials (2020). date_created: 2021-05-04T08:48:48Z date_updated: 2023-01-17T07:45:59Z department: - _id: '150' doi: 10.3390/ma13020467 keyword: - wall slip prevention - effective gap height - parallel-plate system - structured surfaces - model suspensions - cement paste - fresh concrete language: - iso: eng main_file_link: - open_access: '1' url: https://www.mdpi.com/1996-1944/13/2/467 oa: '1' publication: Materials publication_identifier: issn: - 1996-1944 publication_status: published quality_controlled: '1' status: public title: 'Absolute Rheological Measurements of Model Suspensions: Influence and Correction of Wall Slip Prevention Measures' type: journal_article user_id: '3959' year: '2020' ... --- _id: '37505' author: - first_name: Jutta full_name: Weber, Jutta id: '31494' last_name: Weber - first_name: Michael full_name: Nagenborg, Michael last_name: Nagenborg citation: ama: 'Weber J, Nagenborg M. TechnoSecuritySociety: Catastrophic Futures, Pre-emptive Security & Mass Surveillance. In: Maasen S, Dickel S, Schneider C, eds. TechnoScienceSociety. Technological Reconfigurations of Science and Society. Sociology of the Sciences Yearbook. Springer International Publishing; 2020:209-224.' apa: 'Weber, J., & Nagenborg, M. (2020). TechnoSecuritySociety: Catastrophic Futures, Pre-emptive Security & Mass Surveillance. In S. Maasen, S. Dickel, & C. Schneider (Eds.), TechnoScienceSociety. Technological Reconfigurations of Science and Society. Sociology of the Sciences Yearbook (pp. 209–224). Springer International Publishing.' bibtex: '@inbook{Weber_Nagenborg_2020, title={TechnoSecuritySociety: Catastrophic Futures, Pre-emptive Security & Mass Surveillance}, booktitle={TechnoScienceSociety. Technological Reconfigurations of Science and Society. Sociology of the Sciences Yearbook}, publisher={Springer International Publishing}, author={Weber, Jutta and Nagenborg, Michael}, editor={Maasen, Sabine and Dickel, Sascha and Schneider, Christoph}, year={2020}, pages={209–224} }' chicago: 'Weber, Jutta, and Michael Nagenborg. “TechnoSecuritySociety: Catastrophic Futures, Pre-Emptive Security & Mass Surveillance.” In TechnoScienceSociety. Technological Reconfigurations of Science and Society. Sociology of the Sciences Yearbook, edited by Sabine Maasen, Sascha Dickel, and Christoph Schneider, 209–24. Springer International Publishing, 2020.' ieee: 'J. Weber and M. Nagenborg, “TechnoSecuritySociety: Catastrophic Futures, Pre-emptive Security & Mass Surveillance,” in TechnoScienceSociety. Technological Reconfigurations of Science and Society. Sociology of the Sciences Yearbook, S. Maasen, S. Dickel, and C. Schneider, Eds. Springer International Publishing, 2020, pp. 209–224.' mla: 'Weber, Jutta, and Michael Nagenborg. “TechnoSecuritySociety: Catastrophic Futures, Pre-Emptive Security & Mass Surveillance.” TechnoScienceSociety. Technological Reconfigurations of Science and Society. Sociology of the Sciences Yearbook, edited by Sabine Maasen et al., Springer International Publishing, 2020, pp. 209–24.' short: 'J. Weber, M. Nagenborg, in: S. Maasen, S. Dickel, C. Schneider (Eds.), TechnoScienceSociety. Technological Reconfigurations of Science and Society. Sociology of the Sciences Yearbook, Springer International Publishing, 2020, pp. 209–224.' date_created: 2023-01-19T07:10:29Z date_updated: 2023-01-19T07:27:08Z department: - _id: '411' editor: - first_name: Sabine full_name: Maasen, Sabine last_name: Maasen - first_name: Sascha full_name: Dickel, Sascha last_name: Dickel - first_name: Christoph full_name: Schneider, Christoph last_name: Schneider language: - iso: eng main_file_link: - open_access: '1' url: https://juttaweber.eu/wordpress/wp-content/uploads/2022/12/Weber_Nagenborg_TechnoSecuritySociety.pdf oa: '1' page: 209-224 publication: TechnoScienceSociety. Technological Reconfigurations of Science and Society. Sociology of the Sciences Yearbook publisher: Springer International Publishing status: public title: 'TechnoSecuritySociety: Catastrophic Futures, Pre-emptive Security & Mass Surveillance' type: encyclopedia_article user_id: '14932' year: '2020' ... --- _id: '37507' author: - first_name: Jutta full_name: Weber, Jutta id: '31494' last_name: Weber - first_name: Annelie full_name: Pentenrieder, Annelie last_name: Pentenrieder citation: ama: 'Weber J, Pentenrieder A. Lucy Suchman. In: Heßler M, Liggieri K, eds. Technikanthropologie. Handbuch für Wissenschaft und Studium. Nomos; 2020:215-225.' apa: Weber, J., & Pentenrieder, A. (2020). Lucy Suchman. In M. Heßler & K. Liggieri (Eds.), Technikanthropologie. Handbuch für Wissenschaft und Studium (pp. 215–225). Nomos. bibtex: '@inbook{Weber_Pentenrieder_2020, place={Baden-Baden}, title={Lucy Suchman}, booktitle={Technikanthropologie. Handbuch für Wissenschaft und Studium}, publisher={Nomos}, author={Weber, Jutta and Pentenrieder, Annelie}, editor={Heßler, Martina and Liggieri, Kevin}, year={2020}, pages={215–225} }' chicago: 'Weber, Jutta, and Annelie Pentenrieder. “Lucy Suchman.” In Technikanthropologie. Handbuch für Wissenschaft und Studium, edited by Martina Heßler and Kevin Liggieri, 215–25. Baden-Baden: Nomos, 2020.' ieee: 'J. Weber and A. Pentenrieder, “Lucy Suchman,” in Technikanthropologie. Handbuch für Wissenschaft und Studium, M. Heßler and K. Liggieri, Eds. Baden-Baden: Nomos, 2020, pp. 215–225.' mla: Weber, Jutta, and Annelie Pentenrieder. “Lucy Suchman.” Technikanthropologie. Handbuch für Wissenschaft und Studium, edited by Martina Heßler and Kevin Liggieri, Nomos, 2020, pp. 215–25. short: 'J. Weber, A. Pentenrieder, in: M. Heßler, K. Liggieri (Eds.), Technikanthropologie. Handbuch für Wissenschaft und Studium, Nomos, Baden-Baden, 2020, pp. 215–225.' date_created: 2023-01-19T07:32:12Z date_updated: 2023-01-19T07:32:26Z department: - _id: '411' editor: - first_name: Martina full_name: Heßler, Martina last_name: Heßler - first_name: Kevin full_name: Liggieri, Kevin last_name: Liggieri language: - iso: ger main_file_link: - open_access: '1' url: https://juttaweber.eu/wordpress/wp-content/uploads/2020/03/Pentenrieder_Weber_Lucy-Suchman-1.pdf oa: '1' page: 215-225 place: Baden-Baden publication: Technikanthropologie. Handbuch für Wissenschaft und Studium publisher: Nomos status: public title: Lucy Suchman type: encyclopedia_article user_id: '14932' year: '2020' ...