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Transkript des vierten Projekttreffens 'Wie Bilder laufen lernten'
No full text<p>Der Datensatz stammt aus der Dissertation &bdquo;Das au&szlig;erunterrichtliche Lernangebot &sbquo;Kinder-Uni&lsquo; als Ressource f&uuml;r den Ausbau kindlicher Diskurskompetenz: Rekonstruktion explanativer diskursiver Praktiken in einem ausgew&auml;hlten Lehr-Lernarrangement f&uuml;r Sch&uuml;ler/innen der Primarstufe&ldquo;. Die gespr&auml;chsanalytisch orientierte Studie untersucht das Potenzial des au&szlig;erunterrichtlichen Lernangebots &sbquo;Kinder-Uni&lsquo; f&uuml;r die F&ouml;rderung diskursiver F&auml;higkeiten von Grundschulkindern, besonders im Kontext von Bildungsbenachteiligung bei Kindern mit Zuwanderungshintergrund. Analysiert werden Interaktionen zwischen Kindern und Studierenden, wobei rekonstruiert wird, wie beide Seiten die Relevanz kindlicher Erkl&auml;rungen herstellen und gespr&auml;chsstrukturelle Aufgaben gemeinsam bearbeiten. Die Ergebnisse zeigen, dass das Lehr-Lernarrangement Potenzial zur F&ouml;rderung von Erkl&auml;rkompetenz besitzt, insbesondere hinsichtlich der Dimensionen &bdquo;Kontextualisierung&ldquo; und &bdquo;Vertextung&ldquo;.</p>
<p>Im Lehr-Lernarrangement &bdquo;Wie Bilder laufen lernten&ldquo; erstellen Lehramtsstudierende gemeinsam mit mehrsprachig aufwachsenden Grundschulkindern einen Legom&auml;nnchen-Film. Beim vierten Projekttreffen setzen die Kinder die Dreharbeiten um. Nach der Bearbeitung und dem Zusammenf&uuml;gen der Aufnahmen am Laptop (&bdquo;im Studio&ldquo;) wird das Projekt abgeschlossen.</p>
<p>Transkriptionskonventionen: GAT2 &ndash; Basistranskript<br />Ursprungsdatei: Audioaufnahme mit einem Audio-Recorder ZOOM H1n</p>
Surface layer state after hard turning of 51CrV4
No full textDescription of the dataset:Hard-turning experiments were conducted on cylindrical specimens made of a quenched and tempered (Q&T) steel 51CrV4in different initial surface hardness levels, i. e. 400 HV30, 500 HV30 and 600 HV30. Prior to heat treatment,all specimens were manufactured with the same roughness requirements in order to ensure an almost identical surface finish before hard-turning. Three different sections of nine specimen of each hardness level(i.e. in total 27 section-specific areas per hardness level) were machined with varied cutting parameters feed rate(f), depth of cut (a_p) and cutting speed (v_c).Hard-turning of the specimens was carried out on a servo-conventional lathe of type Weiler C30 usingpolycrystalline boron nitride (PCBN) inserts with a corner radius of 0.8 mm.After hard-turning, residual stress depth profiles were determined using X-ray diffraction (XRD),respectively for each specific area of a specimen. Residual stress measurements were conducted using aPulstec μ-X360 diffractometer equipped with a 0.3 mm collimator and CrKα-radiation with an exposure timeof 120 sec. Depth profiles were determined by successive removal of the material surface layer usingelectro-chemical polishing. The obtained data have been evaluated applying the cos α-method without considerationof any mathematical stress correction.Post process surface roughness in axial direction was determined using a Mitutoyo SJ-210 tactile roughnessmeasuring device. Post process Vickers hardness testing was carried out using a Struers DuraScan-70 systememploying a load of 294.2 N (HV30).For more detailed information on the material and the experimental setup, i.e., chemical composition, specimengeometry, machines and parameters used for hard-turning operations and post process measurements, the reader isreferred to [1].A full factorial experiment design was used with two levels for the initial hardness levels H_Vinit and threefactors for the cutting parameters, f: {0.05 mm, 0.25 mm, 0.5 mm}, v_c: {100 m/min, 175 m/min, 250 m/min},a_p: {0.05 mm, 0.25 mm, 0.5 mm}, resulting in 81 different combinations. For the residual stress depth profilemodeling, measurements for 12 different depths are available:{0, 10, 20, 30, 40, 50, 60, 80, 100, 120, 150, 200} μm, providing for N = 972 samples in total.Two data sets are provided:1. "hardness_roughness_hard_turning.csv" with the 81 data points for the surface hardness and roughness measurements.2. "residual_stress_profile_hard_turning.csv" with the 972 data points for the tangential residual stress depth profiles.[1] Thomas Wegener, Alexander Liehr, Artjom Bolender, Sebastian Degener, Felix Wittich, Andreas Kroll, & Thomas Niendorf, "Calibration and validation of micromagnetic data for non-destructive analysis of near-surface properties after hard turning" in HTM Journal of Heat Treatment and Materials, 2022, 77(2), 156-172.KR 3795/8-1; NI 1327/22-1, https://www.wbk.kit.edu/wbkintern/Forschung/Projekte/SPP2086
Chemical Resistance of Regenerated Cellulose Fiber-Reinforced Bio-Polyamide 5.10 [Dataset]
No full textPolyamides are known for their chemical resistance and are commonly used as matrix materials in glass fiber-reinforced composites (GFC) for automotive applications such as fuel caps and housings. To assess the potential of natural fiber-reinforced composites (NFC) as alternatives, this study investigates the chemical resistance of a bio-based polyamide (PA5.10) reinforced with regenerated cellulose fibers (RCF). Composites containing 20 wt.% RCF were produced using twin-screw extrusion, and standardized type 1A test specimens were injection molded. These were exposed to various fluids (distilled water, salt water, soap water, acid rain, rubbing alcohol, engine oil, ethanol, sodium hydroxide solution, and 2-propanol) for up to 168 hours. Subsequent analyses included tensile testing, FTIR spectroscopy, MVR, moisture measurements, and SEM imaging. Results revealed significant hydrolytic degradation, indicated by FTIR and decreased viscosity. Degradation was especially pronounced in acidic and alkaline media. A strong link was observed between increased moisture uptake and reduced mechanical properties. Chemical exposure led to notable damage in RCF composites, attributed to the moisture absorption of RCF and fiber degradation, as confirmed by SEM images. Loss of fiber-matrix adhesion further contributed to substantial declines in tensile strength and Young’s modulus. These findings highlight limitations in chemical resistance for RCF-reinforced bio-based polyamides, especially under harsh environmental conditions.
This data set consists of the measured data from the conducted experiments as well as the data analysis.In case you use the data please cite the corresponding article. The corresponding publication is currently in publication process.FNR, 2220NR089
Interviewtranskripte "Die Akzeptanz der Ergebnisse sozialrechtlicher Schiedsstellen"
No full textDer Datensatz enthält Transkripte von Interviews, die im Rahmen der Dissertation "Die Akzeptanz der Ergebnisse sozialrechtlicher Schiedsstellen - Ein Beitrag zur interdisziplinären Rechtsforschung mit Fokus auf Akteure der Eingliederungshilfe und der Sozialen Pflegeversicherung" von Michael Beyerlein geführt wurden. Untersucht wurde die Frage, welche Faktoren zur Akzeptanz von sozialrechtlichen Schiedssprüchen durch Konfliktparteien beitragen. Expertinnen und Experten in den Feldern Eingliederungshilfe und Pflege wurden zu deren Sicht auf das Schiedsverfahren, damit verbundene Erwartungen und Gründe für die Akzeptanz oder Ablehnung der Entscheidung interviewt
Simulationsmodell gesamtwirtschaftliche Kosten und Nutzen der energetischen Modernisierungen des deutschen Mietwohngebäudebestandes
No full textDas Simulationsmodell wurde im Rahmen des Verbundprojektes FLAMME (Fairness, Lastenverteilung und Akzeptanz des Mietrechts bei Modernisierungen für Energieeffizienz) entwickelt. Am Verbundprojekt beteiligt waren die Universität Kassel, das ITG Dresden, das FIW München und das Umweltbundesamt (UBA).
Simulationsmodell hauptsächlich erstellt von: Leo Reutter. Beigetragen haben auch Dr. Manuel Lindauer (FIW München), Wolfgang Schmidt (FIW München), Christoph Sprengard (FIW München), Dr. Bernadetta Winiewska (ITG Dresden).
Das Simulationsmodell ermöglicht es, für vorgegebene Beispielgebäude und Modernisierungsoptionen, die proportional auf den gesamten deutschen Mietwohngebäudebestand verteilt werden, abhängig von mietrechtlichen und förderpolitischen Rahmenbedingungen und unter Beachtung knapper Handwerkskapazitäten zu berechnen, wann in den Jahren 2023 bis 2045 energetische Modernisierungen aus Vermieterinnen-Perspektive im Vergleich zur reinen Instandhaltung lohnen und durchgeführt werden können und welche Auswirkungen auf Mieter zu erwarten sind. Es ermöglicht so die vergleichende Analyse verschiedener mietrechtlicher Umlagesysteme darauf hin, wie viel staatliche Förderung bei den untersuchten Umlagesystemen notwendig ist, um bestimmte politische Ziele, insbesondere Klimaschutzziele, zu erreichen.
Das Simulationsmodell baut auf auf dem Simulationsmodell von Reutter, Winiewska, et al. (2025) und dem dazugehörigen Aufsatz Reutter und Winiewska (2025).03EI523
Mulching effects on nutrient contents of potato foliage and Colorado potato beetle fitness [Dataset]
No full textApplication of organic mulches has repeatedly been shown to reduce infestation with Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae), the Colorado potato beetle (CPB). In order to determine if the nutritional status of potatoes as affected by mulch could explain the mulch effects in potatoes against CPB, we determined potato leaf nutrient composition in unmulched control plots and plots mulched with grass-clover or triticale-vetch and assessed mulch effects on CPB damage and development in the field during three years and under controlled conditions. In mulched plots, foliar Mo, Cl, and K contents were consistently higher than without mulch and leaf damage by CPB was reduced significantly. In addition, increased B contents were associated with undamaged plant material while higher Zn contents were associated with leaves damaged by CPB. Under controlled conditions, CPB fitness was not affected by mulch application. Overall, reduced CPB damage could not be clearly attributed to altered foliar nutrient contents due to mulching. It is thus more likely that CPB reductions in mulched systems are due to mechanisms other than an altered nutrient balance
Surface slope measurement of steep silicon V-grooves using high NA Linnik interferometry [Dataset]
No full textThis dataset containes raw measurement data from a coherence scanning interferometer of the Linnik type. Two 0.95 NA objectives were used for this measurement. The wavelength used for all these measurements is 440 nm and the step size between every z-step is 20 nm. The measured sample contains several V-groove structures etched into silicon. The structure shown in the corresponding publication is the central V-groove structure.LE 992/14-3 und LE 992/16-1project TracOptic, 20IND0
Transkript des ersten Projekttreffens 'Wie Bilder laufen lernten'
No full text<p>Der Datensatz stammt aus der Dissertation &bdquo;Das au&szlig;erunterrichtliche Lernangebot &sbquo;Kinder-Uni&lsquo; als Ressource f&uuml;r den Ausbau kindlicher Diskurskompetenz: Rekonstruktion explanativer diskursiver Praktiken in einem ausgew&auml;hlten Lehr-Lernarrangement f&uuml;r Sch&uuml;ler/innen der Primarstufe&ldquo;. Die gespr&auml;chsanalytisch orientierte Studie untersucht das Potenzial des au&szlig;erunterrichtlichen Lernangebots &sbquo;Kinder-Uni&lsquo; f&uuml;r die F&ouml;rderung diskursiver F&auml;higkeiten von Grundschulkindern, besonders im Kontext von Bildungsbenachteiligung bei Kindern mit Zuwanderungshintergrund. Analysiert werden Interaktionen zwischen Kindern und Studierenden, wobei rekonstruiert wird, wie beide Seiten die Relevanz kindlicher Erkl&auml;rungen herstellen und gespr&auml;chsstrukturelle Aufgaben gemeinsam bearbeiten. Die Ergebnisse zeigen, dass das Lehr-Lernarrangement Potenzial zur F&ouml;rderung von Erkl&auml;rkompetenz besitzt, insbesondere hinsichtlich der Dimensionen &bdquo;Kontextualisierung&ldquo; und &bdquo;Vertextung&ldquo;.</p>
<p>Im Lehr-Lernarrangement &bdquo;Wie Bilder laufen lernten&ldquo; erstellen Lehramtsstudierende gemeinsam mit mehrsprachig aufwachsenden Grundschulkindern einen Legom&auml;nnchen-Film. Beim ersten Projekttreffen lernen die Kinder das Ph&auml;nomen &bdquo;Tr&auml;gheit des Auges&ldquo; kennen, indem sie mit Drehscheiben experimentieren und jeweils ein eigenes Daumenkino gestalten.</p>
<p>Transkriptionskonventionen: GAT2 &ndash; Basistranskript<br />Ursprungsdatei: Audioaufnahme mit einem Audio-Recorder ZOOM H1n</p>
Multiplexer Optimizations for Virtex FPGAs
No full textThis is the code used to produce results for the publication "Multiplexer Optimizations for Virtex FPGAs" by N. Fiege, M. Hardieck and P. Zipf, presented at the 35th International Conference on Field-Programmable Logic and Applications (FPL) in Leiden, Netherlands during September, 2025.The README.md file contains the VHDL code describing the multiplexers as well as all necessary information to reproduce the results presented in the paper. We are actively working on applying these optimizations to other FPGA architectures within the following repository: https://gitlab.uni-kassel.de/uk025743/mux_opt
Abstract:Multiplexers (MUX) are essential elements in Field-Programmable Gate Arrays (FPGA), widely used in practical applications. Due to the LUT-based architecture of FPGAs, multiplexers that switch among many signals or operate on large word sizes incur significant resource costs, as these costs scale linearly with the data word size. Vivado’s automatic synthesis flow often produces sub-optimal MUX implementations, necessitating hand-crafted solutions to minimize resource overhead. Here, we present three MUX implementation schemes that reduce resource usage for various input signal counts. These optimizations enable enhanced resource efficiency in applications ranging from circuits generated by High-Level Synthesis (HLS) tools to optimized digital filters and artificial neural networks.</p
Effect of organic mulching in potatoes on ground-dwelling predator species [Dataset]
No full textThis repository contains data and R code from three large-scale field experiments (2021a, 2021b, and 2022) conducted on organic potato fields near Witzenhausen / Göttingen, Germany, investigating the effects of different organic mulching treatments (triticale/vetch, straw, grass silage) versus unmulched controls on ground-dwelling generalist predators—specifically carabid beetles and spiders. These predators provide essential ecosystem services in agriculture by preying on pests, but their biodiversity is threatened by intensification, pesticide use, and climate change. Arthropods were sampled using pitfall traps, yielding 12,076 carabids (42 taxa) and 2,399 spiders (38 taxa). Organic mulching, particularly with triticale/vetch, significantly increased the abundance of key beneficial species such as Bembidion lampros, B. quadrimaculatum, Poecilus cupreus (carabids), and Erigone atra, E. dentipalpis, Agyneta rurestris (spiders). Community composition differed markedly between mulched and control plots, as shown by NMDS and PERMANOVA analyses, likely due to increased habitat complexity, altered microclimate, and enhanced prey availability under mulch. The dataset consists of species-level arthropod counts. R code is provided for data cleaning, descriptive summaries, mixed model analyses, diversity and ordination analyses, indicator species tests, and visualization (using tidyverse, vegan, glmmTMB, DHARMa, multcomp). These resources enable reproducible analysis of how organic mulching supports beneficial arthropod populations and contributes to integrated pest management