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Estimation of Equivalent SCR for Offshore Wind

arXiv:2606.03538v1 Announce Type: new Abstract: The integration of offshore wind power plants (OW-PPs) into weak grids can pose stability challenges due to the interaction between inverter-based resources (IBRs), Flexible AC Transmission Systems (FACTS) and the grid. In this context, long HVAC transmission systems, relatively common for OWPPs, can exacerbate the stability challenges. Therefore, this paper introduces a novel methodology for estimating the equivalent short-circuit ratio (ESCR)...

arXiv CS 7d ago

Europe's take-home pay ranking: Where do you earn the most after tax?

Workers' take-home pay varies dramatically across Europe, with annual net earnings ranging from under €13,000 to more than €54,000. While adjusting for living costs narrows the gap between eastern and western Europe, significant differences remain. A worker earning the average wage takes home more than four times as much in Luxembourg as in Hungary, according to the latest Eurostat figures.

Euronews 6d ago

Singapore Airlines limits Business Class advance seat selection based on fare type and membership

Singapore Airlines limits Business Class advance seat selection based on fare type and membership For seat selections made on or after Jun 2, passengers booked on Business Lite fares, as well as Saver, Advantage or Promo awards, are limited to a smaller pool of Business Class seats when making advance seat selections. Singapore Airlines (SIA) has introduced new changes to its advance Business Class seat selection policy, limiting access to preferred seats for passengers travelling on...

Channel News Asia 6d ago

A cryogenic gas target for high-intensity radioactive ion beam production at HIRFL-RIBLL

arXiv:2606.04139v1 Announce Type: new Abstract: A liquid-nitrogen-cooled cryogenic gas target system has been developed and installed for radioactive ion beam (RIB) production at the Radioactive Ion Beam Line in Lanzhou (RIBLL). Light element gases ($\mathrm{H_2}$, $\mathrm{D_2}$, and $\mathrm{^4He}$) filled in the target cell were cooled to approximately 82-86 K with pressures up to 1000 mbar. Utilizing this target, high-quality $^{7}\mathrm{Be}$, $^{16}\mathrm{N}$, and $^{15}\mathrm{O}$...

arXiv Physics 6d ago

A Combined Push-Pull Access Framework for Digital Twin Alignment and Anomaly Reporting

arXiv:2508.21516v2 Announce Type: replace Abstract: A digital twin (DT) contains a set of virtual models of real systems that are synchronized to their physical counterparts. This enables quick experimentation, simulating the consequences of decisions in real time. However, the DT's accuracy depends on timely updates that maintain alignment with the real system.

arXiv CS 6d ago

A Novel Evaluation Metric for Unsupervised Learning in AIS-Based Maritime Anomaly Detection: MADQI

Announce Type: new Abstract: This paper introduces a new systematic framework for detecting anomalies in maritime Automatic Identification System (AIS) datasets. These anomalies include abnormal vessel behaviours related to speed, position jumps, time gaps, and turn angles. Although unsupervised learning algorithms such as Isolation Forest are widely used for detecting anomalous vessel movements, they often lack systematic and meaningful evaluation measures.

arXiv CS 9d ago