@article{Juengst, author = {J{\"u}ngst, Heike Elisabeth}, title = {Audiovisuelles {\"U}bersetzen - wie unterrichte ich das?}, series = {Lebende Sprachen}, volume = {53}, journal = {Lebende Sprachen}, number = {2}, publisher = {De Gruyter}, address = {Berlin}, issn = {1868-0267}, pages = {50 -- 52}, language = {de} } @book{OPUS4-4994, title = {Audiovisuelle {\"U}bersetzung - Filmuntertitelung in Deutschland, Portugal und Tschechien}, editor = {J{\"u}ngst, Heike Elisabeth and Nagel, Silke and Hezel, Susanne and Hinderer, Katharina and Pieper, Kathrin}, publisher = {Lang}, address = {Frankfurt/Main}, isbn = {978-3-631-58141-4}, pages = {476}, language = {de} } @incollection{Juengst, author = {J{\"u}ngst, Heike Elisabeth}, title = {Sachcomics}, series = {Lexikon der Comics}, booktitle = {Lexikon der Comics}, number = {Erg.Lfg. M{\"a}rz 2008}, editor = {Czerwionka, Markus}, publisher = {Corian-Verlag}, address = {Meitingen}, isbn = {3-89048-900-1}, language = {de} } @unpublished{DiethelmHashemishahrakiThaietal., author = {Diethelm, Kai and Hashemishahraki, Safoura and Thai, Ha Duc and Tuan, Hoang The}, title = {A constructive approach for investigating the stability of incommensurate fractional differential systems}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:863-opus-51954}, pages = {21}, abstract = {This paper is devoted to studying the asymptotic behaviour of solutions to generalized noncommensurate fractional systems. To this end, we first consider fractional systems with rational orders and introduce a criterion that is necessary and sufficient to ensure the stability of such systems. Next, from the fractional-order pseudospectrum definition proposed by Sanca et al., we formulate the concept of a rational approximation for the fractional spectrum of a noncommensurate fractional systems with general, not necessarily rational, orders. Our first important new contribution is to show the equivalence between the fractional spectrum of a noncommensurate linear system and its rational approximation. With this result in hand, we use ideas developed in our earlier work to demonstrate the stability of an equilibrium point to nonlinear systems in arbitrary finite-dimensional spaces. A second novel aspect of our work is the fact that the approach is constructive. Finally, we give numerical simulations to illustrate the merit of the proposed theoretical results.}, language = {en} } @unpublished{ChaudharyDiethelm, author = {Chaudhary, Renu and Diethelm, Kai}, title = {Revisiting diffusive representations for enhanced numerical approximation of fractional integrals}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:863-opus-51989}, pages = {6}, abstract = {This study reexamines diffusive representations for fractional integrals with the goal of pioneering new variants of such representations. These variants aim to offer highly efficient numerical algorithms for the approximate computation of fractional integrals. The approach seamlessly aligns with established techniques used in addressing problems involving integer-order operators, contributing to a unified framework for numerical solutions.}, language = {en} } @unpublished{DiethelmHashemishahrakiThaietal., author = {Diethelm, Kai and Hashemishahraki, Safoura and Thai, Ha Duc and Tuan, Hoang The}, title = {Stability properties of multi-order fractional differential systems in 3D}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:863-opus-51960}, pages = {6}, abstract = {This paper is devoted to studying three-dimensional non-commensurate fractional order differential equation systems with Caputo derivatives. Necessary and sufficient conditions are for the asymptotic stability of such systems are obtained.}, language = {en} } @unpublished{ChaudharyDiethelm, author = {Chaudhary, Renu and Diethelm, Kai}, title = {Novel variants of diffusive representation of fractional integrals: Construction and numerical computation}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:863-opus-51975}, pages = {6}, abstract = {In this paper, we revisit the diffusive representations of fractional integrals established in Diethelm (2023a) to explore novel variants of such representations which provide highly efficient numerical algorithms for the approximate numerical evaluation of fractional integrals.}, language = {en} } @article{HoefflinSauerSchiffleretal., author = {H{\"o}fflin, Dennis and Sauer, Christian and Schiffler, Andreas and Hartmann, J{\"u}rgen}, title = {Process Monitoring Using Synchronized Path Infrared Thermography in PBF-LB/M}, series = {Sensors}, volume = {22}, journal = {Sensors}, number = {16}, publisher = {MDPI}, doi = {10.3390/s22165943}, pages = {5943}, abstract = {Additive manufacturing processes, particularly Laser-Based Powder Bed Fusion of Metals (PBF-LB/M), enable the development of new application possibilities due to their manufacturing-specific freedom of design. These new fields of application require a high degree of component quality, especially in safety-relevant areas. This is currently ensured primarily via a considerable amount of downstream quality control. Suitable process monitoring systems promise to reduce this effort drastically. This paper introduces a novel monitoring method in order to gain process-specific thermal information during the manufacturing process. The Synchronized Path Infrared Thermography (SPIT) method is based on two synchronized galvanometer scanners allowing high-speed and high-resolution observations of the melt pool in the SWIR range. One scanner is used to steer the laser over the building platform, while the second scanner guides the field of view of an IR camera. With this setup, the melting process is observed at different laser powers, scan speeds and at different locations with respect to the laser position, in order to demonstrate the positioning accuracy of the system and to initially gain thermal process data of the melt pool and the heat-affected zone. Therefore, the SPIT system shows a speed independent overall accuracy of ±2 Pixel within the evaluated range. The system further allows detailed thermal observation of the melt pool and the surrounding heat-affected zone.}, language = {en} } @article{HoefflinHartmannRosiliusetal., author = {H{\"o}fflin, Dennis and Hartmann, J{\"u}rgen and Rosilius, Maximilian and Seitz, Philipp and Schiffler, Andreas}, title = {Opto-Thermal Investigation of Additively Manufactured Steel Samples as a Function of the Hatch Distance}, series = {Sensors}, volume = {22}, journal = {Sensors}, number = {1}, publisher = {MDPI}, issn = {1424-8220}, doi = {10.3390/s22010046}, pages = {46}, abstract = {Nowadays, additive manufacturing processes are becoming more and more appealing due to their production-oriented design guidelines, especially with regard to topology optimisation and minimal downstream production depth in contrast to conventional technologies. However, a scientific path in the areas of quality assurance, material and microstructural properties, intrinsic thermal permeability and dependent stress parameters inhibits enthusiasm for the potential degrees of freedom of the direct metal laser melting process (DMLS). Especially in quality assurance, post-processing destructive measuring methods are still predominantly necessary in order to evaluate the components adequately. The overall objective of these investigations is to gain process knowledge make reliable in situ statements about component quality and material properties based on the process parameters used and emission values measured. The knowledge will then be used to develop non-destructive tools for the quality management of additively manufactured components. To assess the effectiveness of the research design in relation to the objectives for further investigations, this pre-study evaluates the dependencies between the process parameters, process emission during manufacturing and resulting thermal diffusivity and the relative density of samples fabricated by DMLS. Therefore, the approach deals with additively built metal samples made on an EOS M290 apparatus with varying hatch distances while simultaneously detecting the process emission. Afterwards, the relative density of the samples is determined optically, and thermal diffusivity is measured using the laser flash method. As a result of this pre-study, all interactions of the within factors are presented. The process variable hatch distance indicates a strong influence on the resulting material properties, as an increase in the hatch distance from 0.11 mm to 1 mm leads to a drop in relative density of 57.4\%. The associated thermal diffusivity also reveals a sharp decrease from 5.3 mm2/s to 1.3 mm2/s with growing hatch distances. The variability of the material properties can also be observed in the measured process emissions. However, as various factors overlap in the thermal radiation signal, no clear assignment is possible within the scope of this work.}, language = {en} } @misc{OPUS4-1913, title = {FHWS Science Journal (5, 1)}, volume = {5 (2021)}, number = {1}, editor = {Grebner, Robert}, address = {W{\"u}rzburg}, organization = {Hochschule f{\"u}r Angewandte Wissenschaften W{\"u}rzburg-Schweinfurt}, issn = {2196-6095}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:863-opus-19135}, pages = {116}, abstract = {[D]ie Beitr{\"a}ge im vorliegenden FHWS Science Journal [dienen] dazu, einen Ein- und {\"U}berblick {\"u}ber eine Auswahl erfolgreicher Maßnahmen zu geben, die im Rahmen des BEST-FIT-Projektes entwickelt wurden und die erarbeiteten Methoden, Konzepte und Ergebnisse mit interessierten Lehrenden zu teilen. Nur wenn es gelingt, erfolgreiche Maßnahmen auch nach dem Ende der F{\"o}rderperiode an der FHWS weiterzuf{\"u}hren und auf weitere Studieng{\"a}nge und Fakult{\"a}ten zu {\"u}bertragen, k{\"o}nnen die Ziele von BEST-FIT und insgesamt des Qualit{\"a}tspakts Lehre nachhaltig und dauerhaft erreicht und gesichert werden.}, language = {de} }