University of Stuttgart

Examples for nuclear innovation – part 2: transportable and mobile heat pipe cooled microreactors

Abstract The second part of this publication on examples for nuclear innovation deals with new designs of transportable and mobile heat pipe cooled microreactors. Alkali metal filled heat pipes are one of the central components for the operational and residual heat removal from t...

Machine-optimized parametric computer assisted design (CAD) of a stable flying wing UAV glider

Abstract Designing a statically stable flying-wing UAV glider is a highly nonlinear problem in which small geometric changes cause large shifts in stability and performance. While prior work has applied gradient-based and gradient-free methods to flying-wing aerodynamic optimizat...

Coupling ESPResSo and waLBerla for scalable soft matter simulations with hydrodynamic interactions

Many problems in soft matter research involve particles suspended in a solvent, where hydrodynamic interactions play a crucial role. A well-established simulation approach for such systems combines molecular dynamics for the particles with the lattice-Boltzmann method for the sol...

Development of a heat pipe module for AC 2 /ATHLET and transient simulation of an experiment

Abstract A heat pipe module was developed for the thermal hydraulics system code AC 2 /ATHLET to facilitate the analysis of heat pipe cooled-reactor concepts. The tool enables the transient simulation of liquid metal heat pipes. For validation, an experiment with a potassium heat...

From load-bearing to load-sharing: contact-driven transitions in locked plate constructs

Abstract Locked plate osteosynthesis functions as an internal fixator, yet load-induced plate–bone and fragment–fragment contacts – key transitions from load-bearing to load-sharing – remain poorly characterized. This study quantified their effects on construct stiffness, plate s...

Synthetic training data for neural networks in optical scanners used in the foundry industry

Abstract In industrial applications, AI-based methods are gaining increasing significance in optical systems for tasks such as identification, inspection, and classification. The appeal of these methods lies in their operator-friendly implementation and often superior performance...

Experimental investigation of Coandã flow attachment in automotive windshield defrosting

Abstract This paper examines the occurrence of the Coandã effect in the context of automotive windshield defrosting. A generic, parameterized pseudo-2D test rig representing the main windshield defrosting components of a passenger vehicle is introduced. By externally controlling...

Low-Dimensional Ionotronics

Abstract Ionotronics encompasses a broad range of phenomena and devices based either on the electron-controlled manipulation of ions in electrolytic media or on the use of ionic behavior to control electronic functionality. Although the term itself is relatively recent, the scien...

Advances in the analysis of transient heat transfer experiments using multiple thermochromic liquid crystals

Transient heat transfer experiments that employ thermochromic liquid crystals (TLCs) provide high‐resolution surface‐temperature data but are hampered by noisy intensity signals, non‐ideal fluid‐temperature steps, and the challenge of resolving multiple TLC responses at pixel lev...

Encouraging Growth in Programming Education: Does Growth Mindset Feedback Influence Learning?

Abstract Tutoring systems enable individualized support for diverse learners. Feedback is one of the most influential factors shaping learning, yet the optimal form of feedback remains an open question. Growth mindset feedback emphasizes effort and the value of errors. It has sho...

Design, implementation, and flight testing of a stability augmentation system for coaxial ultralight rotorcraft

Abstract This paper describes the first ever flight demonstration of a stability augmentation system using electromechanicalinline actuators in a rotorcraft without hydraulic force ampflification. A coaxial ultralight helicopter equipped with the stability augmentation system is...

Adhesion-Promoting Properties of Plasma Polymer Layers in Epoxy Resin for Glass Fiber-Reinforced Plastics

Glass fiber-reinforced plastics (GFRPs) rely on strong fiber–matrix adhesion to achieve optimal mechanical performance. However, conventional sizing systems provide only partial surface coverage and may limit interfacial bonding. The current study investigates atmospheric-pressur...

Space circular economy: planned experimental approaches for spacecraft solar arrays

Abstract The space industry aims to promote economic growth while ensuring a sustainable use of space. The sustainability objectives of space often refer to the cleaning of space debris via Active Debris Removal missions. Those solutions, despite being needed, are unsustainable a...

Decoupling multistep schemes for elliptic–parabolic problems

We study the construction and convergence of decoupling multistep schemes of higher order using the backward differentiation formulae for an elliptic–parabolic problem, which includes multiple-network poroelasticity as a special case. These schemes were first introduced in [Altma...

Defined Dinuclear Nickel Sites on Mesoporous Silica Translate Molecular Surface Mimics to Heterogeneous Catalysis

ABSTRACT Metal–metal cooperativity in dinuclear transition‐metal systems offers unique opportunities for controlling reactivity and selectivity in catalytic transformations. Here, we report, inspired by molecular chemistry, the assembly of a bimetallic nickel system grafted onto...

Multi-objective computational design optimization of a Total Disc Replacement implant

Abstract While cervical arthroplasty using Total Disc Replacement (TDR) implants is an established treatment for persistent neck and arm pain, revision rates limit it from reaching its full potential. To address the underlying complications, we developed finite element simulation...

A Hyperbolic Model for Two-Layer Thin Film Flow with a Perfectly Soluble Anti-Surfactant

Abstract. We consider the motion of a two-layer thin film that consists of two immiscible viscous fluids and is endowed with an anti-surfactant solute. The presence of such solute particles induces variations of the surface tension and interfacial stress driving a Marangoni-type...

Microstructural insights into fast ion transport in solid electrolytes via multiscale modeling

Abstract Improving solid electrolytes is critical for high-performance all-solid-state batteries, yet the microstructural features that enable fast ion transport remain poorly understood. Here, we use multiscale modeling to resolve polycrystalline ion transport from atomic-scale...

Urbanization and electoral success: lawyers and workers in interwar France

This study argues that urbanization altered the relationship between candidates’ occupation and their electoral success. To identify the causal effect of local variation in urbanization, we exploit exogenous changes in the boundaries of electoral constituencies in the 1928, 1932,...

Evidential raising in Mandarin Chinese

Abstract In this article, we develop the first syntax-and-semantics analysis of the evidential raising construction of Chinese as in [ Akiu ( haoxiang ) xihuan he pijiu ] de yangzi ‘Akiu seems to like drinking beer’ ( not the DP reading that this string has, too: ‘the appearance...