TY - CHAP AU - Niemann, Sven ED - Papenbrock, Martin ED - Tophinke, Doris ID - 44170 T2 - Kunst und Politik. Jahrbuch der Guernica-Gesellschaft. Schwerpunkt: Politisches Graffiti. TI - Bomb the System! Politische Pieces als Partizipationspraktik im öffentlichen Raum VL - 24/2022 ER - TY - JOUR AB - AbstractGraffiti is an urban phenomenon that is increasingly attracting the interest of the sciences. To the best of our knowledge, no suitable data corpora are available for systematic research until now. The Information System Graffiti in Germany project (Ingrid) closes this gap by dealing with graffiti image collections that have been made available to the project for public use. Within Ingrid, the graffiti images are collected, digitized and annotated. With this work, we aim to support the rapid access to a comprehensive data source on Ingrid targeted especially by researchers. In particular, we present IngridKG, an RDF knowledge graph of annotated graffiti, abides by the Linked Data and FAIR principles. We weekly update IngridKG by augmenting the new annotated graffiti to our knowledge graph. Our generation pipeline applies RDF data conversion, link discovery and data fusion approaches to the original data. The current version of IngridKG contains 460,640,154 triples and is linked to 3 other knowledge graphs by over 200,000 links. In our use case studies, we demonstrate the usefulness of our knowledge graph for different applications. AU - Sherif, Mohamed Ahmed AU - da Silva, Ana Alexandra Morim AU - Pestryakova, Svetlana AU - Ahmed, Abdullah Fathi AU - Niemann, Sven AU - Ngomo, Axel-Cyrille Ngonga ID - 45484 IS - 1 JF - Scientific Data KW - Library and Information Sciences KW - Statistics KW - Probability and Uncertainty KW - Computer Science Applications KW - Education KW - Information Systems KW - Statistics and Probability SN - 2052-4463 TI - IngridKG: A FAIR Knowledge Graph of Graffiti VL - 10 ER - TY - JOUR AU - Kruse, Stephan AU - Serino, Laura AU - Folge, Patrick Fabian AU - Echeverria Oviedo, Dana AU - Bhattacharjee, Abhinandan AU - Stefszky, Michael AU - Scheytt, J. Christoph AU - Brecht, Benjamin AU - Silberhorn, Christine ID - 45485 IS - 14 JF - IEEE Photonics Technology Letters KW - Electrical and Electronic Engineering KW - Atomic and Molecular Physics KW - and Optics KW - Electronic KW - Optical and Magnetic Materials SN - 1041-1135 TI - A Pulsed Lidar System With Ultimate Quantum Range Accuracy VL - 35 ER - TY - CHAP AU - Niemann, Sven ID - 45483 T2 - Document | Archive | Disseminate Graffiti-Scapes TI - INGRID—Archiving Graffiti in Germany ER - TY - GEN AB - We present a novel method for high-order phase reduction in networks of weakly coupled oscillators and, more generally, perturbations of reducible normally hyperbolic (quasi-)periodic tori. Our method works by computing an asymptotic expansion for an embedding of the perturbed invariant torus, as well as for the reduced phase dynamics in local coordinates. Both can be determined to arbitrary degrees of accuracy, and we show that the phase dynamics may directly be obtained in normal form. We apply the method to predict remote synchronisation in a chain of coupled Stuart-Landau oscillators. AU - von der Gracht, Sören AU - Nijholt, Eddie AU - Rink, Bob ID - 45498 T2 - arXiv:2306.03320 TI - A parametrisation method for high-order phase reduction in coupled oscillator networks ER - TY - JOUR AU - Schryen, Guido AU - Sperling, Martina ID - 44361 IS - September JF - Computers & Operations Research TI - Literature Reviews in Operations Research: A New Taxonomy and a Meta Review VL - 157 ER - TY - JOUR AU - Rossel, Moritz Sebastian AU - Meschut, Gerson ID - 45557 JF - BLECHE+ROHRE+PROFILE TI - Prozesskettensimulation für das Clinchen mit beweglicher Matrize VL - 02/2023 ER - TY - DATA AU - Ali, Manzoor AU - Saleem, Muhammad AU - Moussallem, Diego AU - Sherif, Mohamed AU - Ngonga Ngomo, Axel-Cyrille ID - 45560 TI - RELD: A Knowledge Graph of Relation Extraction Datasets ER - TY - JOUR AB - In this work, we discuss the possibility of improving charge neutralization in near ambient pressure X-ray photoelectron spectroscopy by co-irradiating the sample with He I photons of 21.2 eV. This UV-enhanced neutralization of charges is a variation of the so-called environmental charge compensation, which uses the electrons produced by the photoionization of the ambient gas to neutralize the positive charges built at the sample surface. Adding an additional ionization source generates more charges at the sample but also larger amounts of electrons available for neutralization. The final surface charge equilibrium depends on different aspects of the experiment, such as the sample composition and geometry, the total ionization cross sections of the gas compared to the surface materials, the gas used, the luminosity and spot size of the sources used for photoionization, and the energy of the electrons present in the gas phase. Here we illustrate the efficiency of the UV-enhanced neutralization using three different dielectric samples with different geometries (a porous SiO2 monolith with an irregular surface, a flat mica sample, and a thin SiO2 film deposited onto a Si substrate), different X-ray spot sizes, and two different gases (N2 and Ar). The effect of biasing on the efficiency of the sample surface to attract electrons produced in the gas phase is also discussed. AU - Arcos, Teresa de los AU - Müller, Hendrik AU - Weinberger, Christian AU - Grundmeier, Guido ID - 45575 IS - 264 JF - Journal of Electron Spectroscopy and Related Phenomena KW - XPS KW - Near ambient pressure KW - Environmental charge compensation KW - UV SN - 0368-2048 TI - UV-enhanced environmental charge compensation in near ambient pressure XPS VL - 264 ER - TY - CONF AU - Buschütter, David AU - Zeller, Jannis AU - Oltmanns, Stefan AU - Borowski, Andreas AU - Kulgemeyer, Christoph AU - Riese, Josef AU - Vogelsang, Christoph ED - van Vorst, Helena ID - 45567 T2 - Lernen, Lehren und Forschen in einer digital geprägten Welt Gesellschaft für Didaktik der Chemie und Physik Jahrestagung in Aachen 2022 TI - Forschungsdatenmanagement erleichtern durch relationale Datenbanken: Ein Datenmodell für naturwissenschaftsdidaktische Forschung ER -