14 novembre 2023 | International, Aérospatial

US drive to make green jet fuel with ethanol stalled by CO2 pipeline foes | Reuters

The U.S. drive to develop sustainable aviation fuel (SAF) using ethanol could be slowed because of growing opposition to proposed pipelines that would curb greenhouse gas emissions from ethanol plants by capturing carbon dioxide and carrying it away to other states for storage.

https://www.reuters.com/sustainability/climate-energy/us-drive-make-green-jet-fuel-with-ethanol-stalled-by-co2-pipeline-foes-2023-11-14/

Sur le même sujet

  • US Spies Want to Know How to Spot Compromised AI

    31 décembre 2018 | International, C4ISR

    US Spies Want to Know How to Spot Compromised AI

    BY DAVE GERSHGORN What if you were training an AI, and an adversary slipped a few altered images into its study set? The US government's research arm for intelligence organizations, IARPA, is looking for ideas on how to detect “Trojan” attacks on artificial intelligence, according to government procurement documents. Here's the problem the agency wants to solve: At a simple level, modern image-recognition AI learns from analyzing many images of an object. If you want to train an algorithm to detect pictures of a road signs, you have to supply it with pictures of different signs from all different angles. The algorithm learns the relationships between the pixels of the images, and how the structures and patterns of stop signs differ from those of speed-limit signs. But suppose that, during the AI-training phase, an adversary slipped a few extra images (Trojan horses) into your speed-limit-sign detector, ones showing stop signs with sticky notes on them. Now, if the adversary wants to trick your AI in the real world into thinking a stop sign is a speed-limit sign, it just has to put a sticky note on it. Imagine this in the world of autonomous cars; it could be a nightmare scenario. The kinds of tools that IARPA (Intelligence Advanced Research Projects Activity) wants would be able to detect issues or anomalies after the algorithm has been trained to recognize different objects in images. This isn't the only kind of attack on AI that's possible. Security researchers have also warned about inherent flaws in the way artificial intelligence perceives the world, making it possible to alter physical objects like stop signs to make AI algorithms miscategorize them without ever messing with how it was trained, called “adversarial examples.” While neither Trojan attacks nor the adversarial examples are known to have been used by malicious parties in the real world, researchers have said they're increasingly possible. IARPA is looking at a short timeline as well, expecting the program to conclude after a maximum of two years. https://www.defenseone.com/technology/2018/12/us-spies-want-know-how-spot-compromised-ai/153826

  • Space Software Startup To Pursue SDA Contracts

    12 février 2020 | International, Aérospatial

    Space Software Startup To Pursue SDA Contracts

    NewSpace Networks will bid against Lockheed Martin for bankrupt Vector Launch's GalacticSky software-defined satellite assets, says co-founder Shaun Coleman. By THERESA HITCHENS WASHINGTON: Three of the founders of bankrupt Vector Launch have created a new startup, NewSpace Networks, to develop space software products for applications such as data analysis, cybersecurity, and the Internet of Things (IoT). As one of their first forays into the market, the company intends to respond to the Space Development Agency's January call for “leap-ahead technologies” for its evolving DoD space architecture. The new San Jose-based company is eyeing SDA's top two priorities: the so-called ‘transport layer' for Internet and communications connectivity and the ‘tracking layer' that will also cover hypersonic missiles. NewSpace Networks leadership believe they could provide capabilities to the ‘battle management layer,' and the ‘support layer' to enable ground and launch segments to support a responsive space architecture. “We could occupy several of those layers,” Robert Cleave, formerly Vector's chief revenue office, told me in a phone conversation today, which included NewSpace Network co-founders Shaun Coleman and John Metzger. Coleman was the first investor in Vector Launch; Metzger was vice president of software engineering. As we reported, the SDA's Jan. 21 Broad Area Announcement gives interested vendors one year to pitch their ideas. Coleman said that NewSpace Networks is the only company focused on creating a software-based infrastructure in space. Rather than building satellites, Cleave explained, “we see ourselves as a provider of software that makes the satellite smarter.” The idea is to move the aerospace industry from its current hardware focus to a focus on software, as has happened at big tech firms across Silicon Valley and is recognized by many of the Air Force's leadership. NewSpace Networks intends to target military and defense-related customers, along with commercial firms and civilian government agencies. This includes pitching to be a part of DoD's efforts to develop and use 5G high-speed communications capabilities and to provide connectivity to Army vehicles. But it also is looking at potential sales outside of the traditional aerospace community, such as vendors of autonomous vehicles, city governments interested in infrastructure monitoring, and even direct consumer sales of healthcare devices and entertainment services. The wide variety of potential customers is based on the fact that NewSpace Networks' planned products are focused on computing, data storage and processing capabilities at the edge, ones that have a wide variety of potential uses. According to today's announcement, NewSpace Networks's initial products will focus on “the unique challenges of edge computing via space connectivity.” But the company's tech also could be used with aircraft, drones or aerostats serving as the connectivity node, the co-founders explained. The company also intends to work on: Data analytics and analysis; Cloud integration; Network optimization; Virtualization & Hyperconvergence (the latter is industry jargon for combining computing, storage and networking in a single system); Space and air integration; Security and encryption; Application lifecycle management; and IoT enablement. Tuscon-based Vector was one of three commercial space firms chosen in April by the Defense Advanced Research Projects Agency for its DARPA Launch Challenge, a $12 million competition to rapidly launch small satellites to Low Earth Orbit (LEO), until its surprise withdrawal in September due to financial difficulties. The other two companies were Virgin Orbit, which withdrew in October to concentrate on more lucrative customers, and the secretive California-based startup Astra, that first went public in early February via a website. According to a Feb. 3 profile in Bloomberg Businessweek, the firm intends its first launch on Feb. 21. Vector declared Chapter 11 bankruptcy in December, and as colleague Jeff Foust reported on Jan. 24 announced it would auction off its assets. Vector already has a $4.5 million bid from Lockheed Martin for its GalacticSky software-defined satellite technology — essentially a computer on orbit that can be configured for various satellite missions that will be accepted if no other firms issues a bid by Feb. 21. If others throw their hats in the ring, there will be an auction for GalacticSky on Feb. 25. And guess what? NewSpace Networks intends to do just that. “We will be bidding for GalacticSky as well,” Coleman said, noting that I was the first reporter they have told. The founders believe that GalacticSky's technology, that allows a satellite to act more like a cloud node than a mainframe computer, would be complementary to their own developments. Even if they don't win the auction, they hope to work with whoever wins. https://breakingdefense.com/2020/02/space-software-startup-to-pursue-sda-contracts

  • Elbit Systems Awarded $37 Million Contract to Supply Iron Fist APS for Upgrading U.S. Army’s Bradley IFVs

    8 mai 2024 | International, Terrestre

    Elbit Systems Awarded $37 Million Contract to Supply Iron Fist APS for Upgrading U.S. Army’s Bradley IFVs

    The Iron Fist APS is an advanced Hard Kill system aimed at enhancing the self-defense capabilities of armored platforms against modern battlefield threats

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