@article{13175, abstract = {{Today, organizations must deal with a plethora of IT security threats and to ensure smooth and uninterrupted business operations, firms are challenged to predict the volume of IT security vulnerabilities and allocate resources for fixing them. This challenge requires decision makers to assess which system or software packages are prone to vulnerabilities, how many post-release vulnerabilities can be expected to occur during a certain period of time, and what impact exploits might have. Substantial research has been dedicated to techniques that analyze source code and detect security vulnerabilities. However, only limited research has focused on forecasting security vulnerabilities that are detected and reported after the release of software. To address this shortcoming, we apply established methodologies which are capable of forecasting events exhibiting specific time series characteristics of security vulnerabilities, i.e., rareness of occurrence, volatility, non-stationarity, and seasonality. Based on a dataset taken from the National Vulnerability Database (NVD), we use the Mean Absolute Error (MAE) and Root Mean Square Error (RMSE) to measure the forecasting accuracy of single, double, and triple exponential smoothing methodologies, Croston's methodology, ARIMA, and a neural network-based approach. We analyze the impact of the applied forecasting methodology on the prediction accuracy with regard to its robustness along the dimensions of the examined system and software package "operating systems", "browsers" and "office solutions" and the applied metrics. To the best of our knowledge, this study is the first to analyze the effect of forecasting methodologies and to apply metrics that are suitable in this context. Our results show that the optimal forecasting methodology depends on the software or system package, as some methodologies perform poorly in the context of IT security vulnerabilities, that absolute metrics can cover the actual prediction error precisely, and that the prediction accuracy is robust within the two applied forecasting-error metrics.}}, author = {{Yasasin, Emrah and Prester, Julian and Wagner, Gerit and Schryen, Guido}}, issn = {{0167-4048}}, journal = {{Computers & Security}}, number = {{January}}, title = {{{Forecasting IT Security Vulnerabilities - An Empirical Analysis}}}, volume = {{88}}, year = {{2020}}, } @inproceedings{20344, author = {{Bielak, Christian Roman and Böhnke, Max and Bobbert, Mathias and Meschut, Gerson}}, location = {{Darmstadt}}, title = {{{Development of a numerical method for analyzing the robustness of clinching in versatile process chains}}}, year = {{2020}}, } @article{16301, author = {{Atorf, Bernhard and Mühlenbernd, Holger and Zentgraf, Thomas and Kitzerow, Heinz-Siegfried}}, issn = {{1094-4087}}, journal = {{Optics Express}}, number = {{6}}, pages = {{8898--8908}}, title = {{{All-optical switching of a dye-doped liquid crystal plasmonic metasurface}}}, doi = {{10.1364/oe.383877}}, volume = {{28}}, year = {{2020}}, } @inproceedings{31361, abstract = {{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 = {{Hoffmann, Max and Biehler, Rolf}}, booktitle = {{ INDRUM 2020, Université de Carthage, Université de Montpellier, Sep 2020, Cyberspace (virtually from Bizerte), Tunisia}}, title = {{{Designing a Geometry Capstone Course for Student Teachers: Bridging the gap between academic mathematics and school mathematics in the case of congruence}}}, year = {{2020}}, } @article{36263, author = {{Weber, Jutta}}, 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!«}}, title = {{{Skynet oder Slaughterbots. Schwarmintelligenz in Militär, Politik und Populärkultur}}}, year = {{2020}}, } @article{36265, author = {{Weber, Jutta}}, journal = {{Technosecurity Cultures, Sonderausgabe „Science as Culture“ (Hg.: Jutta Weber/Katrin M. Kämpf)}}, pages = {{1--10}}, title = {{{Introduction: Technosecurity Cultures}}}, volume = {{Vol. 29(1)}}, year = {{2020}}, } @article{21949, abstract = {{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.}}, 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 Gehlen, Christoph and Hauschildt, Inga and Ivanova, Irina and Jesinghausen, Steffen and Klein, Christopher and Krauss, Hans-W. and Lohaus, Ludger and Lowke, Dirk and Mazanec, Oliver and Pawelczyk, Sebastian and Pott, Ursula and Radebe, Nonkululeko W. and Riedmiller, Joachim Jürgen and Schmid, Hans-Joachim and Schmidt, Wolfram and Secrieru, Egor and Stephan, Dietmar and Thiedeitz, Mareike and Wilhelm, Manfred and Mechtcherine, Viktor}}, issn = {{1359-5997}}, journal = {{Materials and Structures}}, keywords = {{Rheology, Wall Slip, Slip, apparent slip, suspension, cement, concrete}}, 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}}, year = {{2020}}, } @article{21948, abstract = {{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.}}, author = {{Pawelczyk, Sebastian and Kniepkamp, Marieluise and Jesinghausen, Steffen and Schmid, Hans-Joachim}}, issn = {{1996-1944}}, journal = {{Materials}}, keywords = {{wall slip prevention, effective gap height, parallel-plate system, structured surfaces, model suspensions, cement paste, fresh concrete}}, title = {{{Absolute Rheological Measurements of Model Suspensions: Influence and Correction of Wall Slip Prevention Measures}}}, doi = {{10.3390/ma13020467}}, year = {{2020}}, } @misc{37505, author = {{Weber, Jutta and Nagenborg, Michael}}, booktitle = {{TechnoScienceSociety. Technological Reconfigurations of Science and Society. Sociology of the Sciences Yearbook}}, editor = {{Maasen, Sabine and Dickel, Sascha and Schneider, Christoph}}, pages = {{209--224}}, publisher = {{Springer International Publishing}}, title = {{{TechnoSecuritySociety: Catastrophic Futures, Pre-emptive Security & Mass Surveillance}}}, year = {{2020}}, } @misc{37507, author = {{Weber, Jutta and Pentenrieder, Annelie}}, booktitle = {{Technikanthropologie. Handbuch für Wissenschaft und Studium}}, editor = {{Heßler, Martina and Liggieri, Kevin}}, pages = {{215--225}}, publisher = {{Nomos}}, title = {{{Lucy Suchman}}}, year = {{2020}}, } @misc{37506, author = {{Weber, Jutta}}, booktitle = {{Technikanthropologie. Handbuch für Wissenschaft und Studium}}, editor = {{Heßler, Martina and Liggieri, Kevin}}, pages = {{207--214}}, publisher = {{Nomos}}, title = {{{Donna Haraway}}}, year = {{2020}}, } @misc{37508, author = {{Weber, Jutta}}, booktitle = {{Technikanthropologie. Handbuch für Wissenschaft und Studium}}, editor = {{Heßler, Martina and Liggieri, Kevin}}, pages = {{318--324}}, publisher = {{Nomos}}, title = {{{MenschMaschine}}}, year = {{2020}}, } @misc{37536, booktitle = {{Science as Culture}}, editor = {{Weber, Jutta and Kämpf, Katrin}}, number = {{1}}, title = {{{Technosecurity Cultures. Special Issue of ‚Science as Culture‘. Vol. 29(1), März 2020}}}, year = {{2020}}, } @inproceedings{13943, author = {{Krumme, Matthias and Webersen, Manuel and Claes, Leander and Webersen, Yvonne}}, booktitle = {{Fortschritte der Akustik - DAGA 2020}}, pages = {{542--545}}, title = {{{Analoge Klangsynthese zur Vermittlung von Grundkenntnissen der Signalverarbeitung an Studierende nicht-technischer Fachrichtungen}}}, year = {{2020}}, } @article{23436, abstract = {{AbstractAs time-to-market is getting shorter, customer needs have to be identified as early as possible in product development. Correctly applied, corporate foresight can give a glimpse into the future to anticipate such needs and thus gain a competitive advantage. A support tool to choose the appropriate method of foresight is not available yet. Thus, a literature study on foresight methods in industry is performed and a novel decision support tool is proposed which avoids high entrepreneurial risks. Based on the findings, potentials for future work are identified for different types of methods.}}, author = {{Gräßler, Iris and Thiele, Henrik and Scholle, P.}}, issn = {{2633-7762}}, journal = {{Proceedings of the DESIGN 2020 16th International Design Conference}}, pages = {{569--576}}, publisher = {{Cambridge University Press}}, title = {{{ASSESSING THE FUTURE: METHODS AND CRITERIA}}}, doi = {{10.1017/dsd.2020.278}}, volume = {{1}}, year = {{2020}}, } @article{23490, author = {{Thiele, Henrik and Weber, Sebastian and Reichwein, Jannik and Bartolo, Joseph A. and Tchana, Yvan and Jimenez, Lucas and Borg, Jonathan C.}}, journal = {{Proceedings of the DESIGN 2020 16th International Design Conference, 26. - 29. Okt. 2020}}, pages = {{747--756}}, publisher = {{Cambridge University Press}}, title = {{{A Scrum Agile Integrated Development Framework}}}, doi = {{https://doi.org/10.1017/dsd.2020.9}}, volume = {{1}}, year = {{2020}}, } @book{32463, author = {{Bonanati, Sabrina and Greiner, Christian and Gruchel, Nicole and Buhl, Heike M.}}, publisher = {{Springer}}, title = {{{ Lesekompetenz fördern. Ein Manual für das LIFE-Programm zur Stärkung der Zusammenarbeit von Schule und Elternhaus}}}, year = {{2020}}, } @article{23463, author = {{Gräßler, Iris and Scholle, Philipp and Thiele, Henrik}}, journal = {{Proceedings of the DESIGN 2020 16th International Design Conference; 26. - 29. Okt. 2020}}, pages = {{147--156}}, publisher = {{Cambridge University Press}}, title = {{{Improving scenario-technique by a semi-automatized consistency assessment based on pattern recognition by artificial neural networks}}}, volume = {{1}}, year = {{2020}}, } @phdthesis{42068, author = {{Gense, Alexander}}, title = {{{Mechatronischer Entwurf eines geregelten Federungssystems für mittelschwere gepanzerte Kettenfahrzeuge}}}, year = {{2020}}, } @phdthesis{42067, author = {{Bertelsmeier, Fabian}}, title = {{{Produkttolerante Automation zellenbasierter Fertigungssysteme}}}, year = {{2020}}, }