FIZ Karlsruhe – Leibniz Institute for Information Infrastructure

Across essentially all fields of research, many aspects of the respective research processes – whether experimental, theoretical, empirical or outright computational – are closely related to software. Yet the process of finding software that is directly suitable or at least a good starting point for a given research task is cumbersome. This project aims to develop a community-driven system that provides potential users of research software with a diversity of pathways towards actually finding software that closely matches their research needs if such software exists. Conversely, it will provide software developers with mechanisms to make their software findable for research-related tasks and it will highlight mismatches between software supply and demand for specific tasks. To this end, we will document how various stakeholders of the research landscape have been searching for – or stumbling upon – research software so far, identify variables associated with successful search outcomes and build workflows that assist in describing software and associated concepts in a standardised fashion. These descriptions will then be aligned across various sources of relevant information and integrated into Wikidata, the knowledge graph that anyone can edit and that already contains considerable breadth and depth of information related to research, software and their interactions. While keeping an eye on similar approaches to software discovery that might work in parts of the research ecosystem, existing Wikidata content and workflows will be reviewed and built upon. Additional documentation, tooling and workflows will be developed to enrich, expand, curate, query and explore this content, both for specific use cases and with ongoing engagement of the communities involved in research software, open data or collaborative curation. Within its three years, the project seeks to establish a dedicated community overseeing a well-documented and smoothly running infrastructure for software discovery and to devise a plan for how this can be sustained for the longer term.

The expansion of the electric grid poses a considerable challenge for the future. In this regard, hybrid grid boosters offer a promising and innovative solution for utilizing unused grid reserves and providing essential system services. This paper presents a quantitative analysis of the benefits of hybrid grid boosters in terms of redispatch savings. To this end, a methodology is outlined for assessing their use in a curatively operated transmission grid system. The analysis employs a market scenario for Germany in 2037, using various simulation models to quantify the economic and technical benefits of potential hybrid grid boosters in various future grid scenarios. The findings indicate that hybrid grid boosters are effective in optimizing the utilization of the existing electricity grid and reducing redispatch volumes and costs, even in highly developed grids.

Since December 2024, zbMATH Open displays open access and licence information not just on a journal level but also for individual articles. We give some examples how the feature can be employed in an analysis of the publication landscape in mathematics.

Improving both mechanical and electrical properties is one of the key requirements for reducing energy losses in power lines. Here, we investigate the structural evolution and hardening of Al 6101 grade, which is a versatile alloy known for its high electrical conductivity. Structure and properties changes were induced by severe plastic deformation followed by artificial aging. Nano indentation maps show improvement in hardness, which is connected to the formation of intermetallic phases. A range of hardening phases with different shapes and Mg/Si ratios have been identified by APT. HR(S)TEM imaging shows that the structure of most particles is only partially ordered due to the high defect density in severely deformed Al matrix. The observed particles exhibit several different crystalline structures, and their orientation relationships with the Al matrix differ from the ones previously established. Moreover, many nanometer sized precipitates consist of several different phases. These structural features are a consequence of non-equilibrium growth conditions of the precipitates and affect further thermal evolution as observed by DSC.

Results of scientific work in chemistry can usually be obtained in the form of materials and data. A big step towards transparency and reproducibility of the scientific work can be gained if scientists publish their data in research data repositories in a FAIR manner. Nevertheless, in order to make chemistry a sustainable discipline, obtaining FAIR data is insufficient and a comprehensive concept that includes preservation of materials is needed. In order to offer a comprehensive infrastructure to find and access data and materials that were generated in chemistry projects, we combined the infrastructure Chemotion repository with an archive for chemical compounds. Samples play a key role in this concept: we describe how FAIR metadata of a virtual sample representation can be used to refer to a physically available sample in a materials’ archive and to link it with the FAIR research data gained using the said sample. We further describe the measures to make the physically available samples not only FAIR through their metadata but also findable, accessible and reusable.

We investigate the interfacial electronic structure of monolayer iron tetraphenylporphyrin chloride (FeTPP-Cl) adsorbed on graphene (Gr) buffer layers supported by Ni(111) and Pt(111). This study unveils the role of a...