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 -