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Tech Xplore internet news portal provides the latest news on electronics, technology, and engineering.

1. Reinforcement learning accelerates model-free training of optical AI systemsСб, 03 янв[-/+]

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Optical computing has emerged as a powerful approach for high-speed and energy-efficient information processing. Diffractive optical networks, in particular, enable large-scale parallel computation through the use of passive structured phase masks and the propagation of light. However, one major challenge remains: systems trained in model-based simulations often fail to perform optimally in real experimental settings, where misalignments, noise, and model inaccuracies are difficult to capture.

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2. Focus apps claim to improve your productivity. Do they actually work?Сб, 03 янв[-/+]

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It's hardly a revelation that we're living in an era of distraction and smartphone addiction. Our phones interrupt us, hijack our attention, and tempt us into scrolling. Even when we aren't interacting with them, their mere presence makes it difficult to concentrate.

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3. No-code machine learning development toolsСб, 03 янв[-/+]

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Since 2021, Korean researchers have been providing a simple software development framework to users with relatively limited AI expertise in industrial fields such as factories, medical, and shipbuilding, providing them with a significant boost.

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4. UK sees record-high electricity from renewables in 2025: StudyПт, 02 янв[-/+]

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Britain produced a record-high amount of electricity from renewable energy last year, a study revealed on Friday.

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5. Norway closes in on objective of 100% electric car salesПт, 02 янв[-/+]

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Norway came close to its objective of selling only zero-emission cars in 2025, with electric vehicles accounting for 95.9% of new registrations.

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6. Tesla loses title as world's biggest electric vehicle maker as sales fall for second year in a rowПт, 02 янв[-/+]

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Tesla lost its crown as the world's bestselling electric vehicle maker on Friday as a customer revolt over Elon Musk's right-wing politics, expiring U.S. tax breaks for buyers and stiff overseas competition pushed sales down for a second year in a row.

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7. Turning PCs and mobile devices into AI infrastructure can slash operational costsПт, 02 янв[-/+]

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Until now, AI services based on large language models (LLMs) have mostly relied on expensive data center GPUs. This has resulted in high operational costs and created a significant barrier to entry for utilizing AI technology. A research team at KAIST has developed a technology that reduces reliance on expensive data center GPUs by utilizing affordable, everyday GPUs to provide AI services at a much lower cost.

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8. Understanding why quick clay is so unstable may lead to safer, greener stabilization methodsПт, 02 янв[-/+]

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Quick clay collapse can be both dangerous and costly. New research will help us understand more about why the clay is so unstable. And maybe what we can do about it.

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9. On-demand hydrogen fuel production goes dark-modeПт, 02 янв[-/+]

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Hydrogen, the lightest element on the periodic table, is a master of escaping almost any container it's stored in. Its extremely small size allows it to squeeze through atomic-scale gaps in the storage materials, which is one of the major issues hindering hydrogen energy from becoming mainstream.

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10. Peering inside perovskite: 3D imaging reveals how passivation boosts solar cell efficiencyПт, 02 янв[-/+]

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Perovskite solar cells have garnered widespread attention as a low-cost, high-efficiency alternative to conventional silicon photovoltaics. However, defects in perovskite films impede charge transport, resulting in energy loss and compromised operational stability.

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11. China's BYD logs record EV sales in 2025Чт, 01 янв[-/+]

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Chinese auto giant BYD sold 2.26 million electric vehicles last year, a company statement showed Thursday, setting a new record for any firm globally.

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12. Review: These are the best plug-in hybrids for under $55,000Ср, 31 дек 2025[-/+]

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If an electric car stirs your interest but the lifestyle changes sound daunting, consider a plug-in hybrid. A plug-in hybrid is simply a rechargeable hybrid, with a larger battery than a standard hybrid that enables a short range of fully electric driving. A regular hybrid recharges by capturing energy during braking, and usually only engages battery power at low speeds or cruising. A plug-in hybrid recharges from an electrical outlet, often from a 240-volt (or "Level 2") connection found in garages or public chargers, and can typically travel between 30 and 50 miles on electricity before a gas engine takes over.

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13. France plans social media ban for children under 15Ср, 31 дек 2025[-/+]

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France will make a fresh attempt to protect children from excessive screen time, proposing a ban on social media access for children under 15 by next September, according to a draft law seen by AFP.

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14. Low-cost gelators nearly double the performance of aircraft anti-icing fluids, finds new studyСр, 31 дек 2025[-/+]

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Tiny molecules already used to thicken everyday products like lotions and adhesives may soon help keep aircraft safe in icy conditions. These molecules, known as low-molecular-weight gelators (LMWGs), can self-assemble into soft, gel-like structures and have long been used in industrial formulations.

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15. Tucked away in a downtown Chicago office building, fallen e-commerce star Groupon is ready for a comebackСр, 31 дек 2025[-/+]

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Inside Groupon's 2-year-old headquarters on the 25th floor of the Leo Burnett Building in downtown Chicago, a giant cat in a spaceship with flashing lights greets visitors in an otherwise staid office tower.

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16. How California's Delete Act will protect personal information from data brokers in the New YearСр, 31 дек 2025[-/+]

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Use a loyalty card at a drug store, browse the web, post on social media, get married or do anything else most people do, and chances are companies called data brokers know about it—along with your email address, your phone number, where you live and virtually everywhere you go.

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17. SoftBank lifts OpenAI stake to 11% with $41bln investmentСр, 31 дек 2025[-/+]

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Japanese tech investor SoftBank said Wednesday that its stake in OpenAI is now around 11% after completing the second stage of a $41-billion investment in the maker of ChatGPT.

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18. TSMC says started mass production of 'most advanced' 2nm chipsСр, 31 дек 2025[-/+]

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Taiwanese tech titan TSMC has started mass producing its cutting-edge 2-nanometer semiconductor chips, the company said in a statement seen by AFP on Wednesday.

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19. Tiny tech, big AI power: What are 2-nanometer chips?Ср, 31 дек 2025[-/+]

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Taiwan's world-leading microchip manufacturer TSMC says it has started mass producing next-generation "2-nanometer" chips.

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20. Southern California's unlikely AI mecca is this very industrial cityСр, 31 дек 2025[-/+]

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Five miles south of downtown Los Angeles, a single industrial block in Vernon is drawing as much electricity as a small town.

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21. Passengers' brain signals may help self-driving cars make safer choicesВт, 30 дек 2025[-/+]

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Cars from companies like Tesla already promise hands-free driving, but recent crashes show that today's self-driving systems can still struggle in risky, fast-changing situations.

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22. New AI model accurately grades messy handwritten math answers and explains student errorsВт, 30 дек 2025[-/+]

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A research team affiliated with UNIST has unveiled a novel AI system capable of grading and providing detailed feedback on even the most untidy handwritten math answers—much like a human instructor.

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23. AI agents arrived in 2025—here's what happened and the challenges ahead in 2026Вт, 30 дек 2025[-/+]

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In artificial intelligence, 2025 marked a decisive shift. Systems once confined to research labs and prototypes began to appear as everyday tools. At the center of this transition was the rise of AI agents—AI systems that can use other software tools and act on their own.

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24. Decompression sickness in fish reveals hidden risks of hydropower operationsВт, 30 дек 2025[-/+]

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Professor Ole Gunnar Dahlhaug and postdoctoral fellow Wolf Ludwig Kuhn at the Norwegian University of Science and Technology (NTNU) have three goals: To understand the problem of gas supersaturation at hydropower plants, to solve it, and to help correct mistakes made during Norway's more than 100 years of hydropower production.

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25. I grew up in the world's coldest city without central heating. Here's what the world can learn from usВт, 30 дек 2025[-/+]

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On winter mornings in Harbin, where the air outside could freeze your eyelashes, I would wake up on a bed of warm earth.

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26. From individuals to crews, AI brings teamwork into construction productivity analysisВт, 30 дек 2025[-/+]

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Researchers at National Taiwan University have developed an AI system that recognizes construction activities at both the individual and crew levels using ordinary site videos. The approach reveals how teamwork shapes productivity and provides a foundation for future human–robot collaboration on construction sites.

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27. New sensor measures strain, strain rate and temperature with single material layerВт, 30 дек 2025[-/+]

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Researchers from the Institute of Metal Research (IMR) of the Chinese Academy of Sciences have developed an innovative flexible sensor that can simultaneously detect strain, strain rate, and temperature using a single active material layer, representing a significant advance in multimodal sensing technology.

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28. New robotic skin lets humanoid robots sense pain and react instantlyВт, 30 дек 2025[-/+]

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If you accidentally put your hand on a hot object, you'll naturally pull it away fast, before you have to think about it. This happens thanks to sensory nerves in your skin that send a lightning-fast signal to your spinal cord, which immediately activates your muscles. The speed at which this happens helps prevent serious burns. Your brain is only informed once the movement has already started.

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29. Meta buys China-founded AI agent ManusВт, 30 дек 2025[-/+]

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Facebook owner Meta has agreed to acquire Manus, an artificial intelligence agent created by a company founded in China but now based in Singapore, the two firms said.

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30. Analyzer delivers real-time insights for US power gridВт, 30 дек 2025[-/+]

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Researchers at the Department of Energy's Oak Ridge National Laboratory partnered with the University of Tennessee to develop a secure, affordable sensing device that delivers unprecedented real-time insight into electric grid behavior. The innovation, called a Universal GridEdge Analyzer, recently won an R&D 100 Award as one of the world's top inventions.

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