@article{53207, abstract = {{Das schulische Wohlbefinden ist ein grundlegendes, sozio-emo- tionales Bedürfnis aller Schüler*innen und daher ein zentraler Qualitätsindikator inklusiver Schulen. Wenig ist bislang jedoch über die Entwicklung des schulischen Wohlbefindens in inklusiven Klassen der Sekundarstufe I bekannt. Im Rahmen ei- nes internen Evaluationsprozesses an der Laborschule Bielefeld, der inklusiven Ver- suchsschule des Landes Nordrhein-Westfalen, hat ein interdisziplinäres Team im Forschungs- und Entwicklungsprojekt „Wohlbefinden und Inklusion an der Labor- schule – eine Selbstreflexion“ die Selbsteinschätzungen der Schüler*innen hinsicht- lich ihres schulischen Wohlbefindens untersucht. Hierzu wurden alle Schüler*innen der Jahrgangstufen 6 bis 10 zwischen 2013 und 2018 jährlich zu einer Befragung eingeladen. Auf der Grundlage des zugehörigen, mit vielen Messzeitpunkten und hoher Beteiligungsquote ausgestatteten längsschnittlichen Datensatzes, wurden fürden vorliegenden Beitrag lineare und quadratische Verläufe des schulischen Wohl- befindens von Schüler*innen aus inklusiven Lerngruppen der Sekundarstufe I ver- gleichend analysiert. Unter Berücksichtigung von insgesamt sechs Komponenten des schulischen Wohlbefindens zeigt sich für zwei Komponenten eine lineare Entwicklung: Die Affinität zur Stammgruppe (bzw. zur eigenen Klasse) nimmt über die Sekundarstu- fe I leicht ab, ebenso die wahrgenommenen sozialen Probleme in der Schule. Die Verläufe der drei Komponenten Einstellungen und Emotionen gegenüber der Schule, schulischer Selbstwert und Sorgen wegen der Schule werden hingegen signifikant besser durch eine quadratische Modellierung abgebildet. Für diese zeigt sich mit zunehmender Jahrgangsstufe eine weniger ausgeprägte Abnahme (Einstellungen und Emotionen gegenüber der Schule, Abwesenheit von Sorgen wegen der Schule), der teilweise eine Zunahme in höheren Jahrgangsstufen folgt (schulischer Selbstwert). Das Ausmaß körperlicher Beschwerden verändert sich nicht signifikant in Abhängigkeit von der Jahrgangsstufe. Schulpädagogische Implikationen werden im Beitrag ebenso diskutiert wie die Perspektiven für künftige Forschung.}}, author = {{Marker, Rabea and Kullmann, Harry and Zentarra, Dominik and Geist, Sabine and Lütje-Klose, Birgit}}, journal = {{Unterrichtswissenschaft}}, keywords = {{Schulisches Wohlbefinden, Sekundarstufe I, Inklusion, Längsschnittstudie · Laborschule Bielefeld}}, pages = {{417--446}}, title = {{{Schulisches Wohlbefinden von Schüler*innen der Sekundarstufe I in inklusiven Lerngruppen – Analysen zum Entwicklungsverlauf an der Laborschule Bielefeld}}}, doi = {{10.1007/s42010-024-00199-0}}, volume = {{52}}, year = {{2024}}, } @article{53661, abstract = {{Inclusive education is a key goal of modern educational reforms, yet its implementation is complex. This study examines the roles of teacher attitudes and self-efficacy in predicting their intentions to use inclusive practices across five western countries: Canada, Germany, Greece, Italy, and Switzerland. The study identified both significant differences and commonalities in prediction patterns across these countries. For instance, beliefs about inclusion varied in their significance, being the most influential predictor among Italian teachers, while managing challenging behaviour was a key predictor for Swiss teachers only. For the other predictors, no significant differences were found, and self-efficacy in collaboration was the strongest predictor nominally. The study suggests that, while aspects such as collaboration seem generally important across countries, effective strategies for promoting inclusive education may also need to be tailored to each country’s unique context, considering aspects of historical background of inclusive education, teacher training, and support. It also emphasizes the need to consider domain-specific aspects of teacher self-efficacy, as different facets differently affect teachers’ intentions.}}, author = {{Sahli Lozano, Caroline and Wüthrich, Sergej and Kullmann, Harry and Knickenberg, Margarita and Sharma, Umesh and Loreman, Tim and Romano, Alessandra and Avramidis, Elias and Woodcock, Stuart and Subban, Pearl}}, issn = {{1918-5227}}, journal = {{Exceptionality Education International}}, number = {{1}}, pages = {{17--41}}, title = {{{How Do Attitudes and Self-Efficacy Predict Teachers’Intentions to Use Inclusive Practices? A Cross-National Comparison Between Canada, Germany, Greece, Italy, and Switzerland}}}, doi = {{10.5206/eei.v34i1.16803}}, volume = {{34}}, year = {{2024}}, } @article{53660, abstract = {{In this paper, a group of nine international scholars reflect on the collective responsibilities of stakeholders within inclusive educa- tional settings. This reflection was prompted by the need to identify specific elements which would support intentional, collective responsibility to support authentic inclusion for all students. In order to engender this collectivist mindset, mirroring the metaphor of the nurturing village, the group conducted a qualitative study based on structured and semi-structured dialogue, written reflec- tions and previously constructed research to inform a framework to support inclusivity more collectively. Results suggest that nurturing spaces, empathetic relationships, supportive networks and targeted teaching, all contribute to bona fide inclusion, especially if this responsibility is shared and cohesive. Data further revealed that inclusivity is a values-driven process which flourishes when all stakeholders subscribe to common values and tenets regarding socially just educational provision. The authors inculcate the vil- lage-mindset, a now popularly received notion, reinforcing the need for active and deliberate dialogue focusing on shared respon- sibilities and vision. In this paper, we intend to reiterate the need for educational systems which foster more collective, compassionate and nurturing inclusive practice in educational settings.}}, author = {{Subban, Pearl and Woodcock, Stuart and Bradford, Brent and Romano, Allesandra and Sahli Lozano, Caroline and Kullmann, Harry and Sharma, Umesh and Loreman, Tim and Avramidis, Elias}}, journal = {{Teachers and Teaching}}, keywords = {{Inclusive education, inclusive schools, collective responsibility, school community, village mindset}}, number = {{5}}, pages = {{668--683}}, title = {{{What does the village need to raise a child with additional needs? Thoughts on creating a framework to support collective inclusion}}}, doi = {{10.1080/13540602.2024.2338398}}, volume = {{30}}, year = {{2024}}, } @article{43135, abstract = {{Previous research has identified the importance of teacher attitudes and self-efficacy in supporting inclusive education. This study involved a multi-national exploration of a further dimension of inclusive education, collective efficacy, through the testing of a new tool, the Teacher Efficacy for Inclusive Practice-Collective (TEIP-C) Scale. The study also aimed to investigate whether teacher attitudes, self-efficacy, collective efficacy and intention to teach in inclusive classrooms differ across countries. Participants included 1,523 teachers from Canada, Greece, Italy and Switzerland. Results suggested a two-factor structure for the TEIP-C, Engagement, and Inclusive Pedagogies, with strong internal consistency for the scale. Several differences across countries were identified, with teachers from Italy reporting more positive attitudes towards inclusion and a greater intention to teach in inclusive classrooms. Implications of the study in terms of further strengthening inclusive practice are discussed.}}, author = {{Sharma , Umesh and Loreman , Tim and May , Fiona and Romano , Alessandra and Lozano , Caroline Sahli and Avramidis , Elias and Woodcock , Stuart and Subban , Pearl and Kullmann, Harry}}, journal = {{European Journal of Special Needs Education}}, keywords = {{Inclusive education, teacher attitudes, teacher self- efficacy, collective efficacy}}, number = {{2}}, pages = {{167–184}}, title = {{{Measuring collective efficacy for inclusion in a global context}}}, doi = {{10.1080/08856257.2023.2195075}}, volume = {{39}}, year = {{2024}}, } @book{34544, abstract = {{Tax evasion, tax avoidance and tax resistance are widespread phenomena in political, economic, social and fiscal history from antiquity through medieval, early modern and modern times. Histories of Tax Evasion, Avoidance and Resistance shows how different groups and individuals around the globe have succeeded or failed in not paying their due taxes, whether in kind or in cash, on their properties or on their crops. It analyses how, throughout history, wealthy and poor taxpayers have tried to avoid or reduce their tax burden by negotiating with tax authorities, through practices of legal or illegal tax evasion, by filing lawsuits, seeking armed resistance or by migration, and how state authorities have dealt with such acts of claim making, defiance, open resistance or elusion. It fills an important research gap in tax history, addressing questions of tax morale and fairness, and how social and political inequality was negotiated through taxation. It gives rich insights into the development of citizen-state relationships throughout the course of history. The book comprises case studies from Ancient Athens, Roman Egypt, Medieval Europe, Early Modern Mexico, the Ottoman Empire, Nigeria under British colonial rule, the United Kingdom of the early 20th century, Greece during the Second World War, as well as West Germany, Switzerland, Sweden and the United States in the 20th century, including transnational entanglements in the world of late-modern offshore finance and taxation. The authors are experts in fiscal, economic, financial, legal, social and/or cultural history. The book is intended for students, researchers and scholars of economic and financial history, social and world history and political economy. The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons Attribution-Share Alike 4.0 license.}}, author = {{Schönhärl, Korinna and Hürlimann, Gisela and Rohde, Dorothea}}, isbn = {{9781003333197}}, keywords = {{Tax History, Financial History}}, publisher = {{Routledge}}, title = {{{Histories of Tax Evasion, Avoidance and Resistance}}}, doi = {{10.4324/9781003333197}}, year = {{2023}}, } @inbook{34546, abstract = {{Jean Bodin's list on how the absolutist monarchical state could raise its revenue ranked taxation only in seventh place. From a modern legal perspective, taxes are compulsory transfers of resources that households and enterprises pay to one or several government bodies without receiving an individual, specific benefit in return. Historians have dealt with not paying taxes in various contexts, such as analysing tax resistance and tax resistance movements in history. Tax law is best understood as an outcome of long-term, often conflictual, negotiations and as an expression of specific political mentalities and ideologies. As a consequence, tax law and sometimes even the tax juridical system have a strongly politicised character. Loopholes in tax legislation that enable or facilitate avoidance or evasion can thus be regarded as a result of the interest-driven politics of parliamentary majorities, as the success of concerted lobby pressure.}}, author = {{Schönhärl, Korinna and Hürlimann, Gisela and Rohde, Dorothea}}, booktitle = {{Histories of Tax Evasion, Avoidance and Resistance }}, editor = {{Schönhärl, Korinna and Hürlimann, Gisela and Rohde, Dorothea}}, pages = {{1--15}}, publisher = {{Routledge}}, title = {{{ The Ability and Intention of Not Paying Taxes in History. Some Introductory Observations}}}, doi = {{10.4324/9781003333197}}, year = {{2023}}, } @inbook{34547, abstract = {{As a case study, this chapter examines two tax education films that were produced 11 years apart in the USA and Western Germany during and after World War II: “The New Spirit” and “Putzke wants to know”. In contrast to America's most popular cartoon character 11 years earlier, Erwin Putzke is in a terrible mood at the beginning of the short film “Putzke wants to know”. The family father and electrician with a workshop of his own is annoyed and upset by the duty of filling in his tax return, grumbling at his wife and daughter and even at their budgie. The film's tax morale message is conveyed to its audience against the backdrop of a sober post-war reality characterised by allied occupation and the Allies' say in West German tax policies during a period of laborious economic build-up after a lost war.}}, author = {{Schönhärl, Korinna}}, booktitle = {{Histories of Tax Evasion, Avoidance and Resistance}}, editor = {{Schönhärl, Korinna and Hürlimann, Gisela and Rohde, Dorothea}}, pages = {{154--167}}, publisher = {{Routledge}}, title = {{{ How to Create a Taxpaying Spirit. A Transnational Examination of an US American and a Western German Tax Education Film in and after World War II}}}, doi = {{10.4324/9781003333197}}, year = {{2023}}, } @article{35428, abstract = {{This paper presents a model of an energy system for a private household extended by a lifetime prognosis. The energy system was designed for fully covering the year-round energy demand of a private household on the basis of electricity generated by a photovoltaic (PV) system, using a hybrid energy storage system consisting of a hydrogen unit and a lithium-ion battery. Hydrogen is produced with a Proton Exchange Membrane (PEM) electrolyser by PV surplus during the summer months and then stored in a hydrogen tank. Mainly during winter, in terms of lack of PV energy, the hydrogen is converted back into electricity and heat by a fuel cell. The model was created in Matlab/Simulink and is based on real input data. Heat demand was also taken into account and is covered by a heat pump. The simulation period is a full year to account for the seasonality of energy production and demand. Due to high initial costs, the longevity of such an energy system is of vital interest. Therefore, this model was extended by a lifetime prediction in order to optimize the dimensioning with the aim of lifetime extension of a hydrogen-based energy system. Lifetime influencing factors were identified on the basis of a literature review and were integrated in the model. An extensive parameter study was performed to evaluate different dimensionings regarding the energy balance and the lifetime of the three components, electrolyser, fuel cell and lithium-ion battery. The results demonstrate the benefits of a holistic modelling approach and enable a design optimization regarding the use of resources, lifetime and self-sufficiency of the system}}, author = {{Möller, Marius Claus and Krauter, Stefan}}, issn = {{2673-9941}}, journal = {{Solar}}, number = {{1}}, pages = {{25--48}}, publisher = {{MDPI AG}}, title = {{{Dimensioning and Lifetime Prediction Model for a Hybrid, Hydrogen-Based Household PV Energy System Using Matlab/Simulink}}}, doi = {{10.3390/solar3010003}}, volume = {{3}}, year = {{2023}}, } @article{35637, abstract = {{Individual cognitive functioning declines over time. We seek to understand how adverse physical health shocks in older ages contribute to this development. By use of event-study methods and data from the USA, England, and several countries in Continental Europe, we find evidence that health shocks lead to an immediate and persistent decline in cognitive functioning. This robust finding holds in all regions representing different health insurance systems and seems to be independent of underlying individual demographic characteristics such as sex and age. We also ask whether variables that are susceptible to policy action can reduce the negative consequences of a health shock. Our results suggest that neither compulsory education nor retirement regulations moderate the effects, thus emphasizing the importance for cognitive functioning of maintaining good physical health in old age.}}, author = {{Schiele, Valentin and Schmitz, Hendrik}}, journal = {{European Economic Review}}, title = {{{Understanding cognitive decline in older ages: The role of health shocks}}}, doi = {{10.1016/j.euroecorev.2022.104320}}, volume = {{151}}, year = {{2023}}, } @article{47992, abstract = {{Ferroelectric domain boundaries are quasi-two-dimensional functional interfaces with high prospects for nanoelectronic applications. Despite their reduced dimensionality, they can exhibit complex non-Ising polarization configurations and unexpected physical properties. Here, the impact of the three-dimensional (3D) curvature on the polarization profile of nominally uncharged 180° domain walls in LiNbO3 is studied using second-harmonic generation microscopy and 3D polarimetry analysis. Correlations between the domain-wall curvature and the variation of its internal polarization unfold in the form of modulations of the Néel-like character, which we attribute to the flexoelectric effect. While the Néel-like character originates mainly from the tilting of the domain wall, the internal polarization adjusts its orientation due to the synergetic upshot of dipolar and monopolar bound charges and their variation with the 3D curvature. Our results show that curved interfaces in solid crystals may offer a rich playground for tailoring nanoscale polar states.}}, author = {{Acevedo-Salas, Ulises and Croes, Boris and Zhang, Yide and Cregut, Olivier and Dorkenoo, Kokou Dodzi and Kirbus, Benjamin and Singh, Ekta and Beccard, Henrik and Rüsing, Michael and Eng, Lukas M. and Hertel, Riccardo and Eliseev, Eugene A. and Morozovska, Anna N. and Cherifi-Hertel, Salia}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, keywords = {{Mechanical Engineering, Condensed Matter Physics, General Materials Science, General Chemistry, Bioengineering}}, number = {{3}}, pages = {{795--803}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls}}}, doi = {{10.1021/acs.nanolett.2c03579}}, volume = {{23}}, year = {{2023}}, } @article{47993, abstract = {{Structural strain severely impacts material properties, such as the linear and nonlinear optical response. Moreover, strain plays a key role, e.g., in the physics of ferroelectrics and, in particular, of their domain walls. μ-Raman spectroscopy is a well-suited technique for the investigation of such strain effects as it allows to measure the lattice dynamics locally. However, quantifying and reconstructing strain fields from Raman maps requires knowledge on the strain dependence of phonon frequencies. In this paper, we have analyzed both theoretically and experimentally the phonon frequencies in the widely used ferroelectrics lithium niobate and lithium tantalate as a function of uniaxial strain via density functional theory and μ-Raman spectroscopy. Overall, we find a good agreement between our ab initio models and the experimental data performed with a stress cell. The majority of phonons show an increase in frequency under compressive strain, whereas the opposite is observed for tensile strains. Moreover, for E-type phonons, we observe the lifting of degeneracy already at moderate strain fields (i.e., at ±0.2%) along the x and y directions. This paper, hence, allows for the systematic analysis of three-dimensional strains in modern-type bulk and thin-film devices assembled from lithium niobate and tantalate.}}, author = {{Singh, Ekta and Pionteck, Mike N. and Reitzig, Sven and Lange, Michael and Rüsing, Michael and Eng, Lukas M. and Sanna, Simone}}, issn = {{2475-9953}}, journal = {{Physical Review Materials}}, keywords = {{Physics and Astronomy (miscellaneous), General Materials Science}}, number = {{2}}, publisher = {{American Physical Society (APS)}}, title = {{{Vibrational properties of LiNbO3 and LiTaO3 under uniaxial stress}}}, doi = {{10.1103/physrevmaterials.7.024420}}, volume = {{7}}, year = {{2023}}, } @article{47994, abstract = {{Coherent nonlinear optical μ-spectroscopy is a frequently used tool in modern material science as it is sensitive to many different local observables, which comprise, among others, crystal symmetry and vibrational properties. The richness in information, however, may come with challenges in data interpretation, as one has to disentangle the many different effects like multiple reflections, phase jumps at interfaces, or the influence of the Guoy-phase. In order to facilitate interpretation, the work presented here proposes an easy-to-use semi-analytical modeling Ansatz, which bases upon known analytical solutions using Gaussian beams. Specifically, we apply this Ansatz to compute nonlinear optical responses of (thin film) optical materials. We try to conserve the meaning of intuitive parameters like the Gouy-phase and the nonlinear coherent interaction length. In particular, the concept of coherence length is extended, which is a must when using focal beams. The model is subsequently applied to exemplary cases of second- and third-harmonic generation. We observe a very good agreement with experimental data, and furthermore, despite the constraints and limits of the analytical Ansatz, our model performs similarly well as when using more rigorous simulations. However, it outperforms the latter in terms of computational power, requiring more than three orders less computational time and less performant computer systems.}}, author = {{Spychala, Kai J. and Amber, Zeeshan H. and Eng, Lukas M. and Rüsing, Michael}}, issn = {{0021-8979}}, journal = {{Journal of Applied Physics}}, keywords = {{General Physics and Astronomy}}, number = {{12}}, publisher = {{AIP Publishing}}, title = {{{Modeling nonlinear optical interactions of focused beams in bulk crystals and thin films: A phenomenological approach}}}, doi = {{10.1063/5.0136252}}, volume = {{133}}, year = {{2023}}, } @inbook{48165, abstract = {{Paying taxes is a field of economic activity that has always been highly morally charged: the question of who pays how much or can avoid or evade the prescribed payments is always closely related to debate about a fair societal distribution of burdens. In the process of moralisation, therefore, faith communities such as the Catholic Church also repeatedly seized the floor to propagate certain norms. The article examines the contributions of theologians from Spain, the USA and West Germany in the 1940s and 1950s. It concludes that the norms of taxation they propagated differed greatly depending on the institutional and economic frameworks within which they operated. The analysis proves taxation to be a field of economic action and societal dispute where economics and morality are indissolubly interconnected.}}, author = {{Schönhärl, Korinna}}, booktitle = {{ Reassessing the Moral Economy Religion and Economic Ethics from Ancient Greece to the 20th Century}}, editor = {{Skambraks, Tanja and Lutz, Martin}}, isbn = {{9783031298349}}, keywords = {{Tax history, religious history: financial history, catholic church, history of economic thought}}, pages = {{237--258}}, publisher = {{Springer}}, title = {{{Tax Morale and the Church: How Catholic Clergies Adapted Norms of Paying Taxes to Secular Institutions (1940s–1950s)}}}, year = {{2023}}, } @inproceedings{48352, abstract = {{Star-connected cascaded H-bridge Converters require large DC-link capacitors to buffer the second-order harmonic voltage ripple. First, it is analytically proven that the DC-link voltage ripple is proportional to the apparent converter power and does not depend on the power factor for nominal operation with sinusoidal reference arm voltages and currents. A third-harmonic zero-sequence voltage injection with an optimal amplitude and phase angle transforms the 2nd harmonic to a 4th harmonic DC-link voltage ripple. This reduces the voltage ripple by exactly 50% for all power factors at steady-state at balanced conditions. However, this requires 54% additional modules for unity power factor operation and even 100% for pure reactive power operation to account for the increased reference arm voltages due to the large amplitude of the optimal third-harmonic injection. If not enough modules are available, an adaptive discontinuous PWM is utilized to still minimize the voltage ripple for the given number of modules and power factor. With a very limited number of modules (modulation index is 1.15), the proposed method still reduces the DC-link voltage ripple by 24.4% for unity power factor operation. It requires the same number of modules as the commonly utilized 3rd harmonic injection with 1/6 of the grid voltage amplitude and achieves superior results. Simulations of a 10 kV/1 MVA system confirm the analysis.}}, author = {{Unruh, Roland and Böcker, Joachim and Schafmeister, Frank}}, booktitle = {{2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe)}}, isbn = {{979-8-3503-1678-0}}, keywords = {{Cascaded H-Bridge, Solid-State Transformer, Capacitor voltage ripple, Zero sequence voltage, Third harmonic injection}}, location = {{Aalborg, Denmark}}, publisher = {{IEEE}}, title = {{{An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors}}}, doi = {{10.23919/epe23ecceeurope58414.2023.10264313}}, year = {{2023}}, } @inproceedings{48269, author = {{Gburrek, Tobias and Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}}, booktitle = {{European Signal Processing Conference (EUSIPCO)}}, location = {{Helsinki}}, title = {{{On the Integration of Sampling Rate Synchronization and Acoustic Beamforming}}}, year = {{2023}}, } @inproceedings{48577, author = {{Henkenjohann, Mark and Nolte, Udo and Henke, Christian and Trächtler, Ansgar}}, booktitle = {{2023 International Conference on Unmanned Aircraft Systems (ICUAS)}}, publisher = {{IEEE}}, title = {{{Novel Cascaded Incremental Nonlinear Dynamic Inversion Controller Approach for a Tiltrotor VTOL}}}, doi = {{10.1109/icuas57906.2023.10156317}}, year = {{2023}}, } @inproceedings{46764, abstract = {{Polymer composites represent the industry standard in injection molding for the production of plastic components with increased requirements in terms of heat resistance and stiffness. In the field of laser sintering (LS), these materials are less common so far. In order to extend the available material variety for the LS process, new ceramic-filled Polyamide 613 powders are investigated within the scope of this work. Here, the resulting properties from two different powder production methods are compared. One filled powder is produced by dry blending and the other powder with the same filler and filling ratio is produced by encapsulating the filler particles inside the polymer particles within the dissolution-precipitation process. It was found that encapsulating the filler particles can provide certain benefits for the processability, for example an improved powder flowability or better filler dispersion. However, encapsulating the filler also alters the thermal properties of the precipitated powder.}}, author = {{Kletetzka, Ivo and Neitzel, Fabian and Schmid, Hans-Joachim}}, booktitle = {{Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium}}, editor = {{Beaman, Joseph}}, location = {{Austin}}, publisher = {{Laboratory for Freeform Fabrication and University of Texas}}, title = {{{Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide Composites made by Laser Sintering}}}, volume = {{34}}, year = {{2023}}, } @inproceedings{44316, author = {{Rozo Vasquez, Julian and Arian, Bahman and Kersting, Lukas and Walther, Frank and Homberg, Werner and Trächtler, Ansgar}}, location = {{Krakau}}, title = {{{Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L}}}, year = {{2023}}, } @article{48781, abstract = {{In a punch-bending machine, wire products are manufactured for a wide range of industrial sectors, such as the electronics industry. The raw material for this process is flat wire made of high-strength steel. During the manufacturing process of the flat wire, residual stresses and plastic deformations are induced into the wire. These residual stresses and deformations fluctuate over the length of the semi-finished product and have a negative effect on the final product quality. Straightening machines are used to reduce this influence to a minimum. So far, the adjustment of a straightening machine has been performed manually, which is a lengthy and complex task even for an experienced worker. This inevitably leads to the use of inefficient straightening strategies and causes high rejection rates in the entire production process. Due to a lack of sensor information from the straightening operation, application of modern feedback control methods has not been practicable. This paper presents a novel design for a straightening machine with an integrated, precise straightening force measurement. By simultaneously monitoring the position of the straightening rollers, state variables of the straightening operation can be derived. Additionally, a tension control for feeding the flat wire is introduced. This is implemented to mitigate the disturbing effects caused by irregularities in the wire-feeding process. In the results of this article, the high precision of the developed force measurement design and its possible applications are shown.}}, author = {{Bathelt, Lukas and Scurk, Maximilian and Djakow, Eugen and Henke, Christian and Trächtler, Ansgar}}, issn = {{1424-8220}}, journal = {{Sensors}}, number = {{22}}, title = {{{Novel Straightening-Machine Design with Integrated Force Measurement for Straightening of High-Strength Flat Wire}}}, doi = {{10.3390/s23229091}}, volume = {{23}}, year = {{2023}}, } @inproceedings{48270, author = {{Schmalenstroeer, Joerg and Gburrek, Tobias and Haeb-Umbach, Reinhold}}, booktitle = {{ITG Conference on Speech Communication}}, location = {{Aachen}}, title = {{{LibriWASN: A Data Set for Meeting Separation, Diarization, and Recognition with Asynchronous Recording Devices}}}, year = {{2023}}, }