https://techxplore.com/ en-us Tech Xplore internet news portal provides the latest news on electronics, technology, and engineering. Over the past year or so, generative AI models such as ChatGPT and DALL-E have made it possible to produce vast quantities of apparently human-like, high-quality creative content from a simple series of prompts. https://techxplore.com/news/2023-04-networks-silver-nanowires-brains.html Machine learning & AI Sat, 29 Apr 2023 09:40:02 EDT news601562292 NFTs, the tokens of the crypto world linked to digital artworks, have been granted a show at the Pompidou Centre in Paris, despite an almost total collapse in their price and cultural cachet. https://techxplore.com/news/2023-04-paris-museum-nft-art-scene.html Business Sat, 29 Apr 2023 05:28:44 EDT news601964920 Movie theater owners are confident that previously streaming-focused tech giants Apple and Amazon are now "committed" to putting their films on the big screen—even if Netflix still declines to—their trade body's new president told AFP. https://techxplore.com/news/2023-04-apple-amazon-committed-big-screen.html Business Sat, 29 Apr 2023 05:27:08 EDT news601964816 ChatGPT's maker said Friday that the artificial intelligence chatbot is available again in Italy after the company met the demands of regulators who temporarily blocked it over privacy concerns. https://techxplore.com/news/2023-04-openai-chatgpt-italy-watchdog-demands.html Machine learning & AI Fri, 28 Apr 2023 18:07:54 EDT news601924071 Recent progress in robotics has brought us startlingly lifelike replicas of humans and animals. https://techxplore.com/news/2023-04-robotic-gait-graceless.html Robotics Fri, 28 Apr 2023 14:10:01 EDT news601909013 According to computational complexity theory, mathematical problems have different levels of difficulty in the context of their solvability. While a classical computer can solve some problems (P) in polynomial time—i.e., the time required for solving P is a polynomial function of the input size—it often fails to solve NP problems that scale exponentially with the problem size and thus cannot be solved in polynomial time. Classical computers based on semiconductor devices are, therefore, inadequate for solving sufficiently large NP problems. https://techxplore.com/news/2023-04-complex-problems-probabilistic.html Computer Sciences Fri, 28 Apr 2023 13:37:04 EDT news601907821 For text categorization, it is necessary to select a set of features (terms) with high discrimination by using feature selection. In text feature selection, Accuracy2 (ACC2) treats terms with same absolute document rate difference but different discrimination equally, which is unreasonable. Existing improved methods (normalized difference measure (NDM), max-min ratio (MMR) and trigonometric comparison measure (TCM) ) based on ACC2 may confuse the importance of rare and sparse terms on account of challenge for parameter selection. https://techxplore.com/news/2023-04-max-difference-maximization-criterion-feature-method.html Computer Sciences Fri, 28 Apr 2023 13:11:02 EDT news601906261 The green hydrogen economy is a sustainable alternative to fossil fuels. However, one of the challenges of constructing a global hydrogen economy is hydrogen transportation by sea. A new paper proposes solid air as a medium for recycling cold energy across the hydrogen liquefaction supply chain. https://techxplore.com/news/2023-04-solid-air-spur-sustainable.html Energy & Green Tech Fri, 28 Apr 2023 12:37:53 EDT news601904270 The social separation imposed by the pandemic led us to rely on technology to an extent we might never have imagined—from Teams and Zoom to online banking and vaccine status apps. https://techxplore.com/news/2023-04-opinion-discuss-jobs-robots-decision.html Robotics Fri, 28 Apr 2023 12:17:05 EDT news601903022 Throughout history, war has been irrevocably changed by the advent of new technologies. Historians of war have identified several technological revolutions. https://techxplore.com/news/2023-04-expert-australian-defense-revolution-warfare.html Robotics Fri, 28 Apr 2023 12:09:04 EDT news601902542 The number of applications for visas used in the technology industry soared for a second straight year, raising "serious concerns" that some are manipulating the system to gain an unfair advantage, authorities said Friday. https://techxplore.com/news/2023-04-agency-tech-visa-lottery.html Business Fri, 28 Apr 2023 11:25:42 EDT news601899937 Chinese tech giant Huawei reported Friday that its revenue edged up 0.8% from a year earlier in the first three months of 2023 and the company was profitable. https://techxplore.com/news/2023-04-huawei-1q-revenue-edges-profit.html Business Fri, 28 Apr 2023 11:25:12 EDT news601899909 The European Commission is forcing 19 tech giants including Amazon, Google, TikTok and YouTube to explain their artificial intelligence (AI) algorithms under the Digital Services Act. Asking these businesses—platforms and search engines with more than 45 million EU users—for this information is a much-needed step towards making AI more transparent and accountable. This will make life better for everyone. https://techxplore.com/news/2023-04-tech-giants-reveal-ai-secrets.html Business Fri, 28 Apr 2023 10:56:07 EDT news601898165 A multi-electron reaction is defined as a reaction in which more than one electron is transferred per active material molecule. VOPO4, a typical class of multi-electron reaction cathode material with V4+/V5+ and V3+/V4+ multiple redox couples, possesses a higher potential with the introduction of more electronegative (PO4)3- anion, which can provide enhanced energy density. https://techxplore.com/news/2023-04-high-performance-2d-pseudocapacitive-multi-electron-reaction.html Energy & Green Tech Fri, 28 Apr 2023 10:31:59 EDT news601896717 An international team of researchers, including nanoengineers at the University of California San Diego, has uncovered nanoscale changes inside solid-state batteries that could offer new insights into improving battery performance. https://techxplore.com/news/2023-04-probing-lithium-ions-solid-surface.html Engineering Fri, 28 Apr 2023 10:31:11 EDT news601896667 It's estimated that mining, refining, and processing metals commonly used in construction, referred to as structural metals, contribute around three billion tons of CO2-equivalent emissions. And, although recycling these materials has the potential to mitigate their negative environmental impact, many sustain damage, like fractures, that can preclude them from extending their lifecycles. https://techxplore.com/news/2023-04-unmendable-method-fractured-metals.html Engineering Fri, 28 Apr 2023 10:20:55 EDT news601896051 Maybe you can't tell a book from its cover, but according to researchers at MIT you may now be able to do the equivalent for materials of all sorts, from an airplane part to a medical implant. Their new approach allows engineers to figure out what's going on inside simply by observing properties of the material's surface. https://techxplore.com/news/2023-04-deep-learning-explores-materials-interiors.html Engineering Fri, 28 Apr 2023 08:46:04 EDT news601890361 Through their fingertips, humans can touch and grip onto things in their surrounding environment, but they can also sense the tactile properties of objects and detect other atmospheric changes. Fingertips are incredibly sensitive parts of our skin, with unique fingerprint patterns embossed on them. https://techxplore.com/news/2023-04-ionic-skin-robots-tactile-sensation.html Robotics Fri, 28 Apr 2023 06:00:02 EDT news601811587 New York's Metropolitan Transportation Authority, which for 14 years has provided real-time information on service outages, delays and other important transit updates for its 1.3 million Twitter followers, will no longer do so. https://techxplore.com/news/2023-04-nyc-transit-agency-twitter-unreliable.html Internet Fri, 28 Apr 2023 03:50:01 EDT news601872047 Australia's oldest coal-fired power plant was shuttered Friday, as the country—a once-notorious climate straggler—prepares for a seismic shift towards renewable energy. https://techxplore.com/news/2023-04-australia-oldest-coal-pivots-renewables.html Energy & Green Tech Fri, 28 Apr 2023 03:41:51 EDT news601872107 Telegram's CEO said Thursday that the social media company will appeal a Brazilian judge's decision to block access to its platform in Brazil for failing to hand over data on neo-Nazi activity. He claimed compliance was "technologically impossible." In a statement posted to his Telegram account, Pavel Durov said that when local laws or unfeasible requirements counter his company's mission—"to preserve privacy and freedom of speech around the world"—it sometimes has to quit markets. https://techxplore.com/news/2023-04-telegram-ceo-complying-brazil-impossible.html Business Fri, 28 Apr 2023 03:40:14 EDT news601872010 Mercedes-Benz said Friday its net profits rose by 12 percent in the first quarter to 4.0 billion euros, buoyed by demand for its vans and priciest premium cars. https://techxplore.com/news/2023-04-top-end-mercedes-profit-growth.html Automotive Fri, 28 Apr 2023 03:37:52 EDT news601871867 New and advanced types of nuclear reactors could play an important role in helping the U.S. meet its long-term climate goals, but a range of technical, regulatory, economic, and societal challenges must first be overcome, says a new report from the National Academies of Sciences, Engineering, and Medicine. https://techxplore.com/news/2023-04-laying-foundation-advanced-nuclear-reactors.html Energy & Green Tech Thu, 27 Apr 2023 17:18:29 EDT news601834703 Think about what you do with your hands when you're home at night pushing buttons on your TV's remote control, or at a restaurant using all kinds of cutlery and glassware. These skills are all based on touch, while you're watching a TV program or choosing something from the menu. Our hands and fingers are incredibly skilled mechanisms, and highly sensitive to boot. https://techxplore.com/news/2023-04-highly-dexterous-robot-darkjust.html Robotics Thu, 27 Apr 2023 17:18:12 EDT news601834688 Microsoft's charm offensive with the world's governments is starting to lose some of its luster as the software giant is confronting its toughest antitrust scrutiny since co-founder Bill Gates was in charge. https://techxplore.com/news/2023-04-microsoft-good-guy-approach-frays.html Business Thu, 27 Apr 2023 16:50:01 EDT news601832601 The crucial semiconductor industry, that powers everything from personal computers, smartphones to fighter jets, suffered a dismal first quarter as demand plummeted for chips. https://techxplore.com/news/2023-04-intel-huge-quarterly-loss-chip.html Business Thu, 27 Apr 2023 16:44:40 EDT news601832675 The voices sound like well-known personalities, the music features trendy dance beats and hip-hop syncopations, and the jokes and laughter are contagious. But listeners of an offbeat Swiss public radio station repeatedly got the message on Thursday: Today's programming is brought to you by Artificial Intelligence. https://techxplore.com/news/2023-04-robots-swiss-radio-ai-voices.html Machine learning & AI Thu, 27 Apr 2023 16:44:17 EDT news601832653 Amazon on Thursday reported stronger-than-expected revenue and profits for the first quarter, sending its stocks higher in after-hours trading. But its prices took a dip in the evening amid concerns about a continued slowdown in the company's profitable cloud computing unit AWS. https://techxplore.com/news/2023-04-amazon-surge.html Business Thu, 27 Apr 2023 16:41:39 EDT news601832494 The Korea Institute of Civil Engineering and Building Technology announced the development of Korea's first sand dam capable of supplying stable water to residents of mountainous highlands during periods of water shortage due to drought. Villagers no longer have to rely on water tank trucks during extreme drought. https://techxplore.com/news/2023-04-advanced-sand-drought.html Engineering Thu, 27 Apr 2023 16:41:03 EDT news601832461 Water blankets around 70 percent of the Earth's surface. Moreover, 97 percent of all the water on earth is seawater, which is undrinkable because of its salt content. But what if we could harness its potential as a new source of renewable energy? https://techxplore.com/news/2023-04-ocean-solution-ushering-era-environmentally.html Energy & Green Tech Thu, 27 Apr 2023 16:21:03 EDT news601831261