4 Contributo in Atti di Convegno (Proceeding)

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AI-Driven Modeling of Ultra-Low Power RF-MEMS Switches for 6G and Future Space Networks

The evolution toward 6G networks marks a paradigm shift where space is no longer a supplementary layer but a native component of the communication architecture. The concept of Space-Air-Ground Integrated Networks (SAGIN) aims to provide seamless, high-speed global coverage by layering terrestrial towers with Low Earth Orbit (LEO) satellite constellations. However, extending 6G to space environments introduces severe constraints regarding signal integrity at millimeter-wave frequencies and the...

In‑Liquid Sputtering and Direct Transfer onto Graphene: A Clean Route to Ni–Graphene Electrocatalysts

Sputtering in low-vapor-pressure liquids provides a clean and versatile route for synthesizing nanostructured electrocatalysts.1–3 In this work, Nickel–Graphene (Ni-G) nanohybrids were synthesized via radio-frequency (RF) magnetron sputtering of Ni into polyethylene glycol (PEG), with direct in-liquid transfer onto graphene (G) sheets. This single-step, chemical-free approach enables uniform nanoparticle dispersion, strong interfacial contact, and preserves nanoscale architecture, offering a ...

Piezo-Assisted RF Magnetron Sputtering of Ni Nanoparticles on TiO₂ Powder Supports for Electrocatalytic Applications

Water electrolysis is a strategic technology for renewable hydrogen production, but its com-mercialization is limited by the cost and availa-bility of efficient electrocatalysts.1 Nickel (Ni) has emerged as a promising non-precious metal catalyst due to its high activity, stability, and durability.2 This study presents a green, dry, and scalable approach for the preparation of Ni-coated TiO₂ nanopowders via plasma-assisted radio frequency (RF) magnetron sputtering.3 The process introduces a u...

Face the Facts! Evaluating RAG-based Pipelines for Professional Fact-Checking

Natural Language Processing and Generation systems have recently shown the potential to complement and streamline the costly and time-consuming job of professional fact-checkers. In this work, we lift several constraints of current state-of-the-art pipelines for automated fact-checking based on the Retrieval-Augmented Generation (RAG) paradigm. Our goal is to benchmark, following professional fact-checking practices, RAG-based methods for the generation of verdicts - i.e., short texts discuss...

Workflows for analysing and utilizing large-scale 3D datasets of cultural heritage

For 3D content, large-scale datasets, such as Objaverse or ShapeNet, and repositories, such as Sketchfab, have been compiled. Within the European 3DBigDataSpace project, a consortium of 10 partners assesses open licensed 3D models to select and retrieve those models particularly representing cultural heritage objects in Europe to aggregate them into the European Data Space. As key part of that work is the classification and geolocalization of 3D content, with mesh models viewable via differen...

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