engineering

Cross-Validation Bias in Predictive Maintenance: A Leakage-Resilient Benchmark

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Predictive maintenance for urban electric transport fleets operates under severe class imbalance, where equipment failures are rare but individually costly. According to a benchmarking study of thirty classical, boosting, and deep tabular models conducted on an anonymised multi-modal fleet dataset comprising trams, trolleybuses, and electric buses, reported optimization gains are frequently artifacts of cross-validation optimism … Read more

Australians Reject Net Zero Amid Rising Energy Costs

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A majority of Australians are unwilling to pay any additional costs to support the transition to net zero, with 51.7 per cent of respondents rejecting even a $1 increase to their energy bills. According to polling by Compass Polling for Affordable Energy Australia (AEA), concerns over the rising cost of living have eclipsed support for … Read more

Gabion Scour Mitigation: Effects of Porosity and Tailwater Depth

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Gabion grade-control structures (GCSs) reduce downstream riverbed scour by up to 38% in depth and 44% in length compared to solid impermeable structures, according to a laboratory study using a recirculating tilting flume. The research indicates that increasing structural porosity—specifically to levels around 0.45—and increasing tailwater depth are the most effective variables for stabilizing channel … Read more

Suppressing Ambipolar Current in Zigzag Antimonene Nanoribbon TFETs

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The Future of Computing: Solving the Ambipolar Bottleneck in Nanoscale Transistors As we push silicon-based technology to its physical limits, the race to find the next generation of semiconductor materials is heating up. One of the most promising frontiers lies in two-dimensional (2D) materials, specifically antimonene nanoribbons. However, moving from theoretical models to functional, short-channel … Read more

Aeronautical Engineering Principle Overturned: A New Discovery

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Beyond the Smooth Surface: The Roughness Revolution in Aerodynamics For over eight decades, aeronautical engineering has been governed by a single, golden rule: keep it smooth. From the sleek fuselages of commercial airliners to the polished hulls of bullet trains, the mantra has always been that any surface imperfection is an enemy of efficiency, inviting … Read more

Imaging hidden objects with consumer LiDAR via motion-induced sampling

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Beyond the Visible: The Next Frontier of LiDAR and Spatial Intelligence For years, we’ve viewed LiDAR (Light Detection and Ranging) as a tool for self-driving cars or high-end surveying equipment. But we are currently witnessing a seismic shift. Depth sensing is migrating from the roof of a vehicle to the pocket of your jeans and … Read more

Second-order variational analysis of PV-battery energy management using jacobi equations

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The Stability Revolution: Why Your Solar Battery Needs More Than Just “Optimal” Control For years, the goal of home and industrial solar energy has been simple: maximize the harvest and store the rest. We’ve relied on “first-order” logic—basically, a set of rules that tell the system to charge when the sun is high and discharge … Read more

NASA’s Artemis II moonship returns to Florida after historic voyage

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Beyond the Splashdown: The Fresh Era of Lunar Exploration The return of the Orion capsule, dubbed Integrity, to the Kennedy Space Center marks more than just the end of a mission. It signals a fundamental shift in how humanity approaches deep space. Unlike the Apollo era, which focused on short-term visits, the current trajectory is … Read more

Focusing in on Human Health Research at Annual Space Meeting

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The Biological Frontier: Overcoming the Health Hurdles of Long-Duration Spaceflight Venturing beyond Earth’s orbit isn’t just a feat of engineering; it is a profound biological challenge. As space agencies race to establish permanent habitats on the Moon and eventually reach Mars, the focus has shifted from simply getting there to ensuring that the human body … Read more

Israel’s strikes and Trump’s blockade have battered Iran’s economy

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Manufacturing in the heartland of Iran’s renowned carpet-making industry has slowed to a near halt, while giant steel mills that once anchored the national economy have fallen silent. Hundreds of thousands of workers have already lost their jobs, and millions more now face the risk of unemployment. Following more than five weeks of bombardment, strikes … Read more

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