Tootfinder

Power failure in offshore gas field cuts Norwegian gas flows to EU and UK by 1/3.
Given the season it mainly affects the rate at which EU gas storages can be refilled.
https://ww…

🚨🇳🇴Norwegian gas supplies to the🇪🇺EU are down as the largest gas… | Francesco Sassi | 22 comments
🚨🇳🇴Norwegian gas supplies to the🇪🇺EU are down as the largest gas field in the country's offshore suffers an widespread power failure ⚡️Maintenance is underway in many Norwegian assets, but this unplanned outage could last for days, complicating Monday's market opening and the refilling of gas storages Yesterday, the Norwegian offshore pipeline operator alerted markets that something was wrong at the Troll gas field, the largest operating gas production field in Europe and w…

DPLib: A Standard Benchmark Library for Distributed Power System Analysis and Optimization
Milad Hasanzadeh, Amin Kargarian
https://arxiv.org/abs/2506.20819

DPLib: A Standard Benchmark Library for Distributed Power System Analysis and Optimization
\textit{DPLib} is an open-source MATLAB-based benchmark library created to support research and development in distributed and decentralized power system analysis and optimization. Distributed and decentralized methods offer scalability, privacy preservation, and resilience to single points of failure, making them increasingly important for modern power systems. However, unlike centralized tools such as MATPOWER, no general-purpose, reproducible data library package currently exists for distrib…

My 2019 MBP appears to have had a power supply failure; looks like I'm going to have to take it to a repair shop to get the battery replaced...

Reliability-Based Fault Analysis and Modeling of Satellite Electrical Power Subsystems Using Fault Tree and Simulation Tools
Niloofar Nobahari, Alireza Rezaee
https://arxiv.org/abs/2507.15708

Reliability-Based Fault Analysis and Modeling of Satellite Electrical Power Subsystems Using Fault Tree and Simulation Tools
One of the most important satellite subsystems is its electric power subsystem. The occurrence of a fault in the satellite power system causes the failure of all or part of the satellite. Calculating the overall reliability of the power system before the mission is crucial in improving the design of the satellite power system. Each component of the power system may malfunction due to pressure, launch pressure, and operating conditions. Accordingly, in this paper, first, a healthy and faulty sys…

Hat tip to John Kemp for admitting that he was wrong to blame Spain's blackout on excessive reliance on inverter-based renewables and insufficient inertia, and 👏 for his very decent explainer on what actually happened. https://jkempenergy.com/2025/06/19/spa

Spain’s blackout blamed on poor voltage control
19 June 2025 Spain’s massive blackout was caused by overvoltage on the transmission system and the failure of the country’s generators to compensate by absorbing more reactive power, according to t…

A facility for thermo-mechanical characterization of fusion magnet materials during cryogenic ion irradiation
Akarsh Aurora, Alexis R Devitre, Angus PC Wylie, Jonas A Rajagopal, Michael P Short
https://arxiv.org/abs/2506.17358

A facility for thermo-mechanical characterization of fusion magnet materials during cryogenic ion irradiation
Commercial fusion power plants demand magnet materials that retain structural integrity and thermal conductivity while operating under the bombardment of energetic neutrons at cryogenic temperatures. Understanding how thermo-mechanical properties evolve under such extreme loads is crucial for selecting materials with high radiation tolerance and predictable failure mechanisms. Presented here is a facility that combines cryogenic transient grating spectroscopy (TGS) with simultaneous ion irradia…

I dreamt last night that I was in Glasgow for a concert and a massive power failure occurred. There was no electricity and all electronics were fried - radio, phones, internet, nothing working except some very old cars with no electronic systems.
We heard rumours that either the Earth had been hit by an EMP pulse from a cosmic event, or maybe this was more local and was caused by a weapon of some kind.
Police were out on horseback telling us to stay calm but had no info. /1

Load-Dependent Power-Law Exponent in Creep Rupture of Heterogeneous Materials
Chlo\'e Braux, Antoine B\'erut, Lo\"ic Vanel
https://arxiv.org/abs/2506.06145

Load-Dependent Power-Law Exponent in Creep Rupture of Heterogeneous Materials
Creep tests on heterogeneous materials under subcritical loading typically show a power-law decaying strain rate before failure, with the exponent often considered material-dependent but independent of applied stress. By imposing successive small stress relaxations through a displacement feedback loop, we probe creep dynamics and show experimentally that this exponent varies with both applied load and loading direction. Simulations of a disordered fiber bundle model reproduce this load dependen…

InSight-R: A Framework for Risk-informed Human Failure Event Identification and Interface-Induced Risk Assessment Driven by AutoGraph
Xingyu Xiao, Jiejuan Tong, Peng Chen, Jun Sun, Zhe Sui, Jingang Liang, Hongru Zhao, Jun Zhao, Haitao Wang
https://arxiv.org/abs/2507.00066

InSight-R: A Framework for Risk-informed Human Failure Event Identification and Interface-Induced Risk Assessment Driven by AutoGraph
Human reliability remains a critical concern in safety-critical domains such as nuclear power, where operational failures are often linked to human error. While conventional human reliability analysis (HRA) methods have been widely adopted, they rely heavily on expert judgment for identifying human failure events (HFEs) and assigning performance influencing factors (PIFs). This reliance introduces challenges related to reproducibility, subjectivity, and limited integration of interface-level da…

Quantum Radar and Research Assessment
Gaspare Galati, Gabriele Pavan, Frederick Daum
https://arxiv.org/abs/2506.13797 https://arxiv.o…

Quantum Radar and Research Assessment
Quantum Radar was studied in many Nations for about fifteen years with the production of some hundred publications. In the post 2020 literature, it is shown that, due to the exceedingly low transmitted power, Quantum Radar cannot produce neither significant results nor real world applications. Regrettably, most of the scientific community ignored this negative outcome: a fact worth of exam. A detailed study of such an assessment failure depicts the main shortcomings of the present situation, ca…

This https://arxiv.org/abs/2501.17707 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csOS_…

vNV-Heap: An Ownership-Based Virtually Non-Volatile Heap for Embedded Systems
The Internet of Batteryless Things might revolutionize our understanding of connected devices by harvesting required operational energy from the environment. These systems come with the system-software challenge that the intermittently powered IoT devices have to checkpoint their state in non-volatile memory to later resume with this state when sufficient energy is available. The scarce energy resources demand that only modified data is persisted before a power failure, which requires precise m…

Growth and prediction of plastic strain in metallic glasses
Tero M\"akinen, Anshul D. S. Parmar, Silvia Bonfanti, Mikko Alava
https://arxiv.org/abs/2507.04271

Growth and prediction of plastic strain in metallic glasses
Predicting the failure and plasticity of solids remains a longstanding challenge, with broad implications for materials design and functional reliability. Disordered solids like metallic glasses can fail either abruptly or gradually without clear precursors, and the mechanical response depends strongly on composition, thermal history and deformation protocol -- impeding generalizable modeling. While deep learning methods offer predictive power, they often rely on numerous input parameters, hind…

Cardiorespiratory coupling improves cardiac pumping efficiency in heart failure
Josh Border, Andrew Lefevre, Vishal Jain, Alain Nogaret
https://arxiv.org/abs/2507.00597

Cardiorespiratory coupling improves cardiac pumping efficiency in heart failure
Recent trials of a neuronal pacemaker have shown that cardiac pumping efficiency increases when respiratory sinus arrhythmia (RSA) is artificially restored in animal models of heart failure. This novel device sheds new light on the functional role of RSA, which has long been debated, by allowing the strength of cardiorespiratory coupling to be artificially varied. Here we show that RSA minimizes the cardiac power dissipated within the cardiovascular network. The cardiorespiratory system is foun…

Self-driving technologies need the help of the public: A narrative review of the evidence
Jonathan Smith, Siddartha Khastgir
https://arxiv.org/abs/2505.23472

Self-driving technologies need the help of the public: A narrative review of the evidence
If public trust is lot in a new technology early in its life cycle it can take much more time for the benefits of that technology to be realised. Eventually tens-of-millions of people will collectively have the power to determine self-driving technology success of failure driven by their perception of risk, data handling, safety, governance, accountability, benefits to their life and more. This paper reviews the evidence on safety critical technology covering trust, engagement, and acceptance. …