• New class of chemical vapor sensors

    An interdisciplinary team of scientists demonstrated that monolayer 2D Transition Metal Dichalcogenides (TMDs) — atomically thin semiconductors — undergo a change from semiconductor-to-metallic phase when exposed to airborne chemical vapors. The team validated optical and electronic evidence of the phase transition and how the behavior can be used to create an entirely new class of chemical vapor sensors. This new class of instruments are potentially more sensitive than current state-of-the-art models, and selective to specific nerve agents and explosive compounds which are of great concern on today’s battlefields.

  • Navy’s railgun ready for operational demos

    The U.S. Navy announced that its electromagnetic railgun is out of the laboratory and ready for field demonstrations. The revolutionary railgun relies on a massive electrical pulse, rather than gunpowder or other chemical propellants, to launch projectiles at distances over 100 nautical miles—and at speeds that exceed Mach 6, or six times the speed of sound. That velocity allows projectiles to rely on kinetic energy for maximum effect, and reduces the amount of high explosives needed on ships.

  • Better technologies help first responders respond more quickly, safely, and effectively

    When disaster strikes, first responders rush in to provide assistance. In addition to their courage and training, they depend on a panoply of technologies to do their jobs. Pacific Northwest National Laboratory has partnered with emergency management and public safety professionals to define, develop, test and deploy these technologies to improve response and recovery. The Lab also applies its scientific capabilities to assess emergencies as they unfold.

  • Three advanced first-response technologies funded

    The Israel-U.S. Binational Industrial Research and Development (BIRD) Foundation awarded funding to three homeland security projects, selected by DHS and MOPS, between U.S. and Israeli companies to advance technologies for first responders. In addition to the grants from BIRD, the projects will access private sector funding, boosting the total value of the three projects to approximately $7 million. The program funds technology collaborations between U.S. and Israeli partners that have significant commercial potential to meet the most pressing requirements of first responders.

  • A “cocktail” of geoengineering approaches to combat climate change

    Geoengineering is a catch-all term that refers to various theoretical ideas for altering Earth’s energy balance to combat climate change. New research from an international team of atmospheric scientists investigates for the first time the possibility of using a “cocktail” of geoengineering tools to reduce changes in both temperature and precipitation caused by atmospheric greenhouse gases.

  • Automated security kiosk to shorten lines at airports, border crossings

    Researchers have developed a next-generation automated screening kiosk which uses an algorithm of “yes” or “no” questions delivered by a computer-generated avatar, quickly and efficiently to assess the potential threats passengers may pose to others. the screening can be completed in less than four minutes with a 90 percent success rate.

  • What an artificial intelligence researcher fears about AI

    As an artificial intelligence researcher, I often come across the idea that many people are afraid of what AI might bring. It’s perhaps unsurprising, given both history and the entertainment industry, that we might be afraid of a cybernetic takeover that forces us to live locked away, “Matrix”-like, as some sort of human battery. Might I become “the destroyer of worlds,” as Robert Oppenheimer lamented after spearheading the construction of the first nuclear bomb? Perhaps the critics are right. Maybe I shouldn’t avoid asking: As an AI expert, what do I fear about artificial intelligence?

  • Space quantum communication using a microsatellite demonstrated

    A big step toward building a truly-secure global communication network: the world’s smallest and lightest quantum-communication transmitter has now been developed. Researchers report they have succeeded in the demonstration of the first quantum- communication experiment from space, receiving information from the satellite in a single-photon regime in an optical ground station in Koganei city. This is a major step toward building a global long-haul and truly-secure satellite communication network.

  • Communication in times of crisis

    Researchers are experimenting with technologies designed to empower the civilian population in times of crisis. They aim to establish basic communications and means to share information, thus facilitating human cooperation and mutual aid even following wide-spread power and Internet outages.

  • Earthquake-proofing buildings in earthquake-prone regions

    Across the world, severe earthquakes regularly shake entire regions. More than two billion people live in danger zones – many of them in structures not built to withstand an earthquake. Engineers are developing building materials designed to prevent buildings from collapsing in a natural disaster.

  • Robotic gripper to help clean up space debris

    Right now, about 500,000 pieces of human-made debris are whizzing around space, orbiting our planet at speeds up to 17,500 miles per hour. This debris poses a threat to satellites, space vehicles and astronauts aboard those vehicles. Researchers combined gecko-inspired adhesives and a custom robotic gripper to create a device for grabbing space debris. They tested their gripper in multiple zero gravity settings, including the International Space Station.

  • Quantum technology holds promise of a future without fakes

    Counterfeit products are a huge problem - from medicines to car parts, fake technology costs lives. Every year, imports of counterfeited and pirated goods around the world cost nearly $0.5 trillion in lost revenue. Counterfeit medicines alone cost the industry over $200 billion every year. They are also dangerous to our health – around a third contain no active ingredients, resulting in a million deaths a year. Researchers exhibiting at the Royal Society Summer Science Exhibition believe we are on the verge of a future without fakes thanks to new quantum technology.

  • Smart quadcopters find their way on their own -- without human help or GPS

    Phase 1 of DARPA’s Fast Lightweight Autonomy (FLA) program concluded recently following a series of obstacle-course flight tests in central Florida. Over four days, three teams of DARPA-supported researchers huddled under shade tents in the sweltering Florida sun, fine-tuning their sensor-laden quadcopter unmanned aerial vehicles (UAVs) during the intervals between increasingly difficult runs. The quadcopters slalomed through woodlands, swerved around obstacles in a hangar, and reported back to their starting point all by themselves.

  • New bracing for durable structures in earthquake-prone regions

    Across the world, severe earthquakes regularly shake entire regions. More than two billion people live in danger zones – many of them in structures not built to withstand an earthquake. Together with partners from industry, researchers are developing building materials designed to prevent buildings from collapsing in a natural disaster.

     

  • Addressing the threat of vehicle-borne IEDs

    In July of 2016, a refrigerator truck packed with explosives detonated next to a crowded apartment block in Baghdad’s Karrada neighborhood. The blast killed 323 people and was one of the worst Vehicle–Borne Improvised Explosive Device (VBIED also known as car bombs) attacks ever recorded. On 30 May 2017, a VBIED in a tanker truck ripped through the embassy quarter of Kabul, killing more than 150 people. DHS S&T has taken measures to address this threat directly.