TU Dortmund University

Multistage NMPC with model-error model

This paper proposes and evaluates new schemes for robust nonlinear model predictive control (NMPC) in the presence of unstructured (non-parametric) model uncertainty. The approach builds on the concept of model-error models (MEM) which bound the possible dynamics of the error bet...

How 8 years of social and individual learning interact to shape ecological competence in orangutans

Cultural learning permeates human skill and knowledge acquisition. To understand its importance for nonhuman apes, we analyzed just under 7000 records of behavioral bouts of social and individual learning across wild orangutans’ 8-year dependency period to assess their combined e...

AI for inclusion: a powerful idea – under which conditions?!

Purpose This opinion piece explores the social, organisational, and political conditions under which artificial intelligence (AI) can genuinely foster inclusion for people with disabilities and other marginalised groups. While AI shows clear potential in fields such as rehabilita...

Acute viral respiratory infections are not associated with an increased IMMune Age indeX (IMMAX) four weeks after infection: a prospective observational cohort study

Abstract Background The factors that determine how quickly immunosenescence occurs in individuals are not yet fully understood. Viral infections throughout one’s life span are suggested to be a relevant modulator. Latent chronic infections, such as CMV or EBV, occupy immune space...

Bright‐Dark Exciton Splitting in Lead Iodide Perovskite Crystals Accessed via Quantum Beats in Photon Echoes

ABSTRACT Understanding the fine structure of excitons is crucial for optoelectronic and quantum photonic applications of lead halide perovskites. It is demonstrated that polarization‐sensitive photon echo spectroscopy in magnetic field provides a powerful method to access coheren...

Construction and Validation of the HEXACO-MFC in German and English Samples

The HEXACO-60 is a popular rating-scale questionnaire for the assessment of the HEXACO personality traits: honesty-humility, emotionality, extraversion, agreeableness versus anger, conscientiousness, and openness to experience. Given the disadvantages of the rating scale format,...

Does High‐speed rail influence the location decisions of knowledge‐intensive firms in Germany?

Abstract Knowledge‐intensive firms (KIFs) play a crucial role in urban development by fostering networks for knowledge creation. Spatial characteristics, particularly accessibility, shape their locational decisions. The emergence of high‐speed rail (HSR) has significantly altered...

Anisotropic Gas Permeability of Beech Wood from X-ray Microtomography and Pore Network Modeling: The Role of Vessels, Fibers, and Pyrolytic Conversion

Abstract Gas transport within biomass particles is a key factor controlling volatile release, secondary reactions, and product formation during pyrolysis. However, the influence of the anisotropic microstructure and its evolution during thermal conversion remains insufficiently u...

Diorganotelluride···N Chalcogen Bonds: Analysis and Tuning of Two σ‐Holes

Organotellurium(II) compounds contain two σ‐holes that may be fine‐tuned through substituents. This work investigates the structural chemistry of two new chalcogen bond (ChB) aggregates of organotellurium(II) compounds and the strong bases 1,4‐diazabicyclo[2.2.2]octane (DABCO) an...

Geographic variation and factors associated with home-based long-term care utilization across municipalities in Japan

Abstract Background Japan’s universal long-term care insurance (LTCI) system promotes aging in place through home-based services (HBS). However, geographic disparities in HBS utilization may persist despite universal coverage. This study examines the following research questions:...

Combining Formal Reasoning and LLMs for Scenario-Based Educational STEM Exercises

Abstract Large language models (LLMs) enable scalable generation of educational exercises for science, technology, engineering, and mathematics (STEM) but often produce mathematically invalid or physically inconsistent problems, while manual authoring remains accurate but hard to...

Bottom-Up Realization of a Type-II Organic/Transition-Metal Dichalcogenides Heterointerface: Pentacene on Monolayer WS2

Abstract Stacked van der Waals heterostructures based on transition-metal dichalcogenides (TMDs) exhibit a rich variety of exotic interfacial phenomena. Substituting one component with an organic semiconductor (OSC) enables the design of hybrid heterostructures with tunable funct...

From quantitative modeling of fluorescence experiments on biomolecules to the prediction of spectroscopic dye properties

Fluorescence spectroscopy and modeling provide powerful means to characterize biomacromolecular structures, dynamics, and interactions. Förster resonance energy transfer serves as a key technique for this because of its nanometer scale distance sensitivity. Quantitative interpret...

A robust combined M-estimator for the negative binomial model

Abstract Robust inference for overdispersed count data is crucial in applications where outliers may substantially distort classical likelihood-based estimation of both the mean and dispersion. We develop robust estimation procedures for independent and identically distributed ne...

Control of the Néel Vector in the Quantum Antiferromagnetic Honeycomb Lattice

The switching of antiferromagnetic order and its efficient control promise to enable ultrafast manipulation of data and large storage capacity. Recently, the time-dependent Schwinger boson mean-field theory has been successfully developed to study the Néel vector switching in hyp...

Deep learning approaches to predict femoral neck T-score and osteopenia/osteoporosis status from wrist accelerometry data

Osteoporosis is a prevalent condition with substantial health and economic implications. Although physical activity is associated with bone health, the specific temporal activity patterns related to bone mineral status remain insufficiently understood. This proof-of-concept study...

The Single-Row Facility Layout Problem with chance constraints

In the Single-Row Facility Layout Problem (SRFLP) one has given a set of departments, their lengths and pairwise material flow between the departments. The goal is to find an arrangement of the departments on a single row that minimises the weighted centre-to-centre distances bet...

Development of a tool-side telemetric dynamometer for measuring mechanical loads during single-lip deep hole drilling

Abstract Single-lip deep hole drilling is used to produce deep holes in a diameter range of D = 0.5…80 mm with a length-to-diameter ratio of l / D ≥ 10. The deep hole drilling process is used in industry, for example, in the production of internal cooling bores in aerospace engin...

Non-Hermitian trapping of Dirac exciton-polariton condensates in a perovskite metasurface

Massless Dirac particles avoid trapping because of their exceptional tunneling properties manifested in the so-called Klein paradox. This conclusion stems from the conservative treatment, but so far, it has not been extended to a non-Hermitian framework. Recently, driven-dissipat...

Cognitive Fitness in Ageing (COFITAGE): A Multimodal and Longitudinal Neuroimaging Dataset

Purpose: Brain aging involves interrelated changes in molecular processes, neuroinflammatory mechanisms, brain macro- and microstructure, sleep physiology, and cognition. The 50 to 70 years age range represents a critical transition period, in which these subtle alterations may p...