Forschungszentrum Jülich

Ajuga reptans L. from Romanian flora as a promising candidate for novel food applications

The increasing demand for natural ingredients with both functional and sensory properties has stimulated the exploration of underutilised plant species as potential sources for novel food applications. Ajuga reptans L. (Lamiaceae) remains relatively underexplored despite its phyt...

Impact of South American biomass burning emissions on elevated South Atlantic upper tropospheric ozone

Abstract. During the SOUTHTRAC mission in autumn 2019 elevated mixing ratios of carbon monoxide (CO), carbon dioxide CO2, nitrogen oxide (NO) and total reactive nitrogen NOy were observed during a flight at the beginning of October. The potential plume extended over more than 100...

Robust design of multi-energy systems accounting for mixed-integer operational problems

Identifying robust designs for multi-energy systems is computationally challenging. As rigorous approaches are often computationally intractable, heuristics are employed to generate candidate designs. Specifically, we consider a heuristic that iteratively identifies and adds extr...

The quest for the optimal level of sense of agency in the case of human-operated, AI-enabled robotics

Sense of agency is the subjective feeling of being in control over one’s own actions and their sensory outcomes. Here, we propose that a key feature of sense of agency is its link to intrinsic motivation, which is a key driver for engagement with the environment without external...

Reliability challenges for resistive random-access memory-based parallel logic computing

<title>Abstract</title> Conventional computing architectures are reaching their scalability limits, while their energy demands increase rapidly. A bottleneck is the separation of memory and processing units, which requires a continuous data transfer. This memory wall increases th...

Efficient sEMG decoding with hybrid, multi-timescale neural networks

Surface electromyography (sEMG) offers a non-invasive window into neuromuscular activity and is increasingly used as a reliable control signal for prosthetics, rehabilitation devices, and wearable health monitoring.However, decoding sEMG for such applications is computationally e...

Exploring the hydrogen abstraction pathway in HOM formation from α -pinene photooxidation systems under varying NO conditions

Abstract. Highly oxygenated organic molecules (HOM) are formed via autoxidation during ⚫OH-initiated oxidation of α-pinene. We investigated the relative contributions of OH-addition and hydrogen (H)-abstraction to HOM formation from α-pinene photooxidation under varying nitrogen...

Time-resolved imaging of antiferromagnetic skyrmion interactions

Abstract Quantifying particle interactions is central to understanding and controlling collective dynamics in particle-based devices such as those comprising skyrmion ensembles. Here we directly visualize, in real time, the nanosecond current-driven dynamics of an antiferromagnet...

Continual learning for autoregressive PDE surrogates under evolving physical regimes

Abstract Deploying machine learning surrogates in scientific simulations faces multifaceted challenges, primary among which is the lack of Continual Learning (CL) capabilities—specifically, the inability to adapt to new physical regimes without significantly degrading performance...

A quality measure for repeating multiple-unit spike patterns

We propose a quality measure for spatio-temporal spike patterns (STPs) in multiple-neuron recordings. In such recordings, repeating STPs or pattern repetitions (PRs) are often found, with many of these generated by chance. To rule those out, statistical tests have been developed...

In situ electron microscopy of LaNiO3 transformation during reduction and methane dry reforming

Abstract By in situ electron microscopy we show the intermediate phase formation during decomposition of LaNiO 3 , a model methane dry reforming (DRM) catalyst, under different gas atmospheres. By combining dark- and bright-field imaging with secondary-electron contrast and opera...

Review of Particle Physics *

The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,200 new measurements from 903 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and b...

Nanoscale Insights:Exploring Undersaturated Crystallizationof Flufenamic Acid with Liquid Phase Transmission Electron Microscopy

Abstract Pharmaceutical crystallization traditionally requires supersaturation to occur and is typically monitored through macroscopic characterization methods that can measure induction times and growth rates. However, detailed insights revealing the precise steps and mechanisms...

The significance of a polarization curve - analysis of a 60-cell polymer electrolyte water electrolysis stack

The objective of this study is to demonstrate the diversity of information encapsulated within a polarization curve and its operational boundary conditions. To this end, a polymer electrolyte membrane water electrolysis stack comprising 60 cells with an active cell area of 1024 c...