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Graphics cards that are equipped with Tensor Core units designed for AI applica tions, for example the NVIDIA Ampere A100, promise very high peak rates concerning their computing power (156 TFLOP/s in single and 312 TFLOP/s in half precision in the case of the A100). This is only achieved when performing arithmetically intensive operations such as dense matrix multiplications in the aforementioned lower precision, which is an obstacle when trying to use this hardware for solving linear sy...
In this contribution, we shall be concerned with the question of wellposedness of thixo viscoplastic flow problems in context of FEM approximations. We restrict our analysis to a quasi Newtonian modeling approach with the aim to set foundations for an efficient monolithic Newton multigrid solver. We present the wellposedness of viscoplastic subproblems and structure subproblems in parallel/independent fashion showing the possibility for a combined treatment. Then, we use the fixed point the...
Additive manufacturing (AM) using the powder bed fusion (PBF) process is building up the components layer by layer, which enables the fabrication of complex 3D structures with unprecedented degrees of freedom. Due to the high cooling rates of the AM process, fine microstructures are generated. This leads to an improvement in quasistatic properties such as tensile strength, whereas the fatigue strength is comparable to that of conventionally manufactured metal or even reduced. This is due to t...
Global water resources are currently under unprecedented stress, which is projected to increase due to the influence of multiple factors. Therefore, changes in governance are urgently required to improve water management and water use efficiency while maintaining the health of river systems and their water quantity and quality. Data is crucial in this process; however, most rivers in the world remain ungauged, and in data-scarce regions, the hydrometric and hydrometeorological networks of sta...
Menschen, die nach Deutschland einwandern, bringen die Ernährungsgewohnheiten des Heimatlandes mit. Sie kommen in den Kontakt mit in Deutschland üblichen Ernährungsgewohnheiten und erleben möglicherweise eine neue soziale Lage, da sie häufig in der unteren sozialen Schicht starten. Gleichzeitig findet ein monetärer Aufstieg statt. Dieser Einfluss hat unterschiedlich starke Rückwirkungen auf die Ernährungsgewohnheiten der Migranten. Durch die großen nationalen Verzehrsdokumentationsstudien für...
Managing climate change is synonymous to managing cities and their growth. To shoulder the challenge of climate change adaptation, informal settlement upgrading in the global south has amounted to the importance of being attuned with the growth of its city and region at large. Changing the paradigm of on-site upgrading to being community-driven and city-led with domestic funding unlocks potentials for community resilience building, especially in countries that strive for inclusive growth. Thi...
Der Beitrag beschreibt die Verkehrsstrukturen in den internationalen Untersuchungsstädten des Forschungsprojekts WIVER. Neben den allgemeinen städtischen und verkehrlichen Strukturen werden die Motorisierungsentwicklung und Verkehrsmengenentwicklung betrachtet. In Zürich und Wien ist die Zunahme des Pkw-Bestandes trotz steigender Einwohnerzahlen deutlich abgeschwächt, die Verkehrsbelastungen im MIV sogar leicht rückläufig. Dem stehen eine zunehmende Nutzung des jeweils deutlich ausgebauten öf...
Dieser Beitrag analysiert die Entwicklung der privaten Pkw-Bestände und der damit verbundenen Motorisierungsquoten in deutschen Städten und Gemeinden mit Fokus auf den Untersuchungsstädten des Forschungsprojekts. Basierend auf Daten des Kraftfahrt-Bundesamtes von 2013 bis 2021 zeigen die Analysen, dass in nahezu allen Städten die Motorisierungsquote und ausnahmslos in allen Städten der private Pkw-Bestand gestiegen ist. Im Vergleich zu anderen Städten mit ähnlichen Rahmenbedingungen (Einwohne...
Der Beitrag vergleicht basierend auf Daten des Kraftfahrt-Bundesamtes und der Erhebung Mobilität in Deutschland 2017 (MiD 2017) das Verkehrsverhalten der Wohnbevölkerung in den Untersuchungsstädten des Forschungsprojekts WIVER sowie zwischen Städten und Gemein-den unterschiedlicher Größe. Dabei liegt der Fokus auf den verkehrsmittelspezifischen Wegehäufigkeiten und Distanzen pro Person und Tag. Unterschiede zwischen den Gemeindegrößenklassen und Untersuchungsstädten bestätigen bisherige Befun...
The instruments of the Mars Reconnaissance Orbiter (MRO) provide a large quantity and variety of imagining data for investigations of the Martian surface. Among others, the hyper-spectral Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) captures visible to infrared reflectance across several hundred spectral bands. However, Mars is only partially covered with targeted CRISM at full spectral and spatial resolution. In fact, less than one percent of the Martian surface is imaged in ...
Between the age span of 3 to 6 years the foundation for children’s mathematical learning (i.e., numerical abilities and cognition) are laid. However, the developing relations between mathematical skills, language, and working memory starting at preschool age and evolving into primary school age are not well understood. Adopting an empirically validated analysis model, the present study examines in detail longitudinal interdependencies between mathematical skills, a wide range of language skil...
Climate-induced pressures spur on the need for urban green infrastructure (UGI) planning. This approach offers a possible way to improve ecosystem functionality and human well-being in adversely affected urban regions, wherein UGI is perceived as a green and nature-based climate change mitigation/adaptation strategy. In Pakistan, the Khyber Pakhtunkhwa (KP) province lacks such urban landscape and greening policies (ULGP) or legislative frameworks for transitioning to green action plans (GAP),...
Since the late 20th century activity spaces have mainly been perceived as a niche concept in German-speaking spatial research. Meanwhile, international research on activity spaces has developed further and gained quite some attention recently. This paper elaborates a comprehensive definition of activity spaces and presents current fields of application with special regard to research on travel behaviour, segregation and public health. Activity spaces as a concept improve estimates of the inte...
Die derzeitige Covid-19-Pandemie zeigt, dass das Risiko (schwerer) zu erkranken aufgrund zuvor bestehender struktureller Ungleichheiten steigt. Strukturelle Ungleichheiten sind nicht gleichmäßig verteilt: Vor allem einkommensschwächere Schwarze Menschen, Indigene Menschen und Menschen of Colour (BIPoCs) leben weltweit unter ungesunden räumlichen Bedingungen. Als Gründe werden an Stelle von strukturellen Ungerechtigkeiten aufgrund kolonialer Herrschaftsmuster vor allem individuelles Verhalten ...
Die vorliegende Arbeit widmet sich einer Analyse der Anforderungen die durch potenzielle Nutzer*innen an ein Lastenradmodell gestellt werden, wenn dieses für den gewerblichen Einsat-zes genutzt werden soll. Dabei erfolgt die Betrachtung berufsgruppenspezifisch, um feststellen zu können, ob eine Unterscheidung auf Ebene der Berufsgruppen gewinnbringend ist und diese Er-kenntnis gegebenenfalls in zukünftigen Beratungssituationen zu nutzen. Durch eine gezielte Be-ratung soll die Akzeptanz potenz...
This thesis comprises a study of rare semileptonic |Δc|=|Δu|=1 transitions in the Standard Model and beyond. The Standard Model phenomenology of three-body meson decays D→ Pll, as well as three- and four-body charmed baryon decays B0 → B1 (→ B2 π) ll, is analyzed and branching ratios are found to be dominated by resonances. Physics effects beyond the Standard Model are studied model-independently as well as in the framework of leptoquark- and flavorful, anomaly-free Z’-models. Resonance domin...
Although it is well established that consumers have an increased valuation for self-assembled products, less is known about how using such products influences objective consumption outcomes. Across three experiments, the current research demonstrates that consumers perform better on tasks when they use a product they have self-assembled—as opposed to an identical but ready-to-use product. We show that this effect results from an increase in self-efficacy and rule out possible alternative acco...
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- 291 Dette, Holger
- 135 Suter, Dieter
- 134 Böhmer, Roland
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- 75 Leuders, Timo
- 74 Weihs, Claus
- 70 Weyer, Johannes
- 68 Biehler, Rolf
- 68 Schweizer, Ben
- 67 Ufer, Stefan
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