Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau

Spatiotemporal terahertz emission nanoscopy of spintronic photocurrent

Capturing ultrafast spin and charge photocurrents on nanoscopic scales is essential for fundamental research in physics and engineering, as well as for future applications, such as novel spin-orbitronic devices. Accessing the fundamental dynamics driven by changes in electronic e...

Learning-Based Data-Assisted Port-Hamiltonian Control for Free-Floating Space Manipulators

A generic data-assisted control architecture within the port-Hamiltonian framework is proposed, introducing a physically meaningful observable that links conservative dynamics to all actuation, dissipation, and disturbance channels. A robust, model-based controller combined with...

CFD investigation of turbulent dissipation rates in peripheral pumps for micromixing

Peripheral pumps are promising micromixing devices due to their intricate internal flow structures and elevated turbulent dissipation rates. This study presents a detailed computational fluid dynamics (CFD) analysis of turbulent dissipation in a peripheral pump, employing transie...

PRDTs: Composable Design and Verification of Consensus Protocols using Replicated Data Types

Consensus protocols are fundamental in distributed systems as they enable services with strong consistency properties. However, designing protocols optimized for specific use-cases under certain system assumptions is typically an error-prone process requiring expert knowledge. Fu...

Sequestosome 1 (SQSTM1/p62) at the nexus of genome integrity maintenance, proteostasis regulation and organellar homeostasis

Sequestosome 1 (SQSTM1 or p62) is a multi-domain protein that functions as a scaffold for aggregating proteins into cytoplasmic inclusions and mediating their turnover via selective autophagy. However, p62 is more than an autophagy scaffold or adaptor protein; it's linked with en...

Macromechanical-based fracture assessment supported with acoustic emission of a layered structure with an organic-inorganic sol-gel thin layer

Thin-layer coatings are widely used in industry to enhance structural performance and prevent corrosion-induced degradation. Fracture performance is one of the key aspects investigated to improve interface durability. Nowadays, parameters such as the energy release rate (G) and s...

Nanoscale Dipolar Fields in Artificial Spin Ice Probed by Scanning NV Magnetometry

Abstract We investigate dipolar coupling fields in two square-lattice artificial spin ice (ASI) systems with different lattice constants using scanning probe microscopy based on a single nitrogen-vacancy (NV) center in diamond. This technique offers nanoscale spatial resolution,...

Discrete adjoint gradient computation for multiclass traffic flow models on road networks

Abstract This paper applies a discrete adjoint gradient computation method for a multi-class traffic flow model on road networks. Vehicle classes are characterized by their specific velocity functions, which depend on the total traffic density, resulting in a coupled hyperbolic s...