544 citations
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71 papers
Fractal tiles induced by tent maps
Klaus Scheicher, Victor F. Sirvent, Paul Surer
In the present article, we deal with geometrical objects induced by the tent maps associated with special Pisot numbers that we call tent-tiles. They are compact subsets of the one…
Towards high resolution, validated and open global wind power assessments
Edgar Ubaldo Peña-Sánchez, Philipp Dunkel, Christoph Winkler +10
Wind power is expected to play a crucial role in future net-zero energy systems, but wind power simulations to support deployment strategies vary drastically in their results, hind…
Reinforcement learning-based adaptive time-integration for nonsmooth dynamics
David Michael Riley, Alexandros Stathas, Diego Gutiérrez-Oribio +1
Numerical time integration is fundamental to the simulation of initial and boundary value problems. Traditionally, time integration schemes require adaptive time-stepping to ensure…
Little to lose: the case for a robust European green hydrogen strategy
Koen van Greevenbroek, Johannes Schmidt, Marianne Zeyringer +1
The EU targets 10 Mt of green hydrogen production by 2030, but has not committed to targets for 2040. Green hydrogen competes with carbon capture and storage, biomass and imports i…
Drag reduction utilizing a wall-attached ferrofluid film in turbulent channel flow
Marius M. Neamtu-Halic, Markus Holzner, Laura M. Stancanelli
This study explores the application of a wall-attached ferrofluid film to decrease skin friction drag in turbulent channel flow. We conduct experiments using water as a working flu…
A Tidy Framework and Infrastructure to Systematically Assemble Spatio-temporal Indexes from Multivariate Data
H. Sherry Zhang, Dianne Cook, Ursula Laa +2
Indexes are useful for summarizing multivariate information into single metrics for monitoring, communicating, and decision-making. While most work has focused on defining new inde…