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Oct. 20, 2020 —形成或蔓延过程,如意见disease spread, can reach a tipping point, where the contagion either rapidly spreads or dies out. When modeling these processes, it is difficult to ...
Mar. 4, 2021 —Using thin films -- no more than a few pieces of notebook paper thick -- of a common explosive chemical, researchers studied how small-scale explosions start and ...
Aug. 14, 2020 —Research has determined that locusts can smell explosives and determine where the smells originated -- an important step in engineering cyborg bomb-sniffing ...
Aug. 5, 2022 —Despite being some of the most versatile building blocks in organic chemistry, compounds called carbenes can be too hot to ...
Oct. 29, 2020 —Researchers have confirmed that the explosive called PETN (Pentaerythritol tetranitrate), stabilized with a polysaccharide coating, is resistant to changes in particle shape, size, and structure that ...
Sep. 21, 2022 —Sparklers can be a lot of fun -- glimmering, fizzing and spitting out arcs of light from handheld sticks or tubes on the ground. But the metals that they're usually made with limit what the ...
Dec. 19, 2022 —Scientists demonstrate how a highly conductive paint coating that they have developed mimics the network spread of a virus through a process called 'explosive percolation' -- a mathematical ...
May 14, 2021 —新的传感器发展ped by researchers can identify explosive materials, particles from a potentially deadly virus and illegal drugs at the part-per-quadrillion ...
Jan. 19, 2022 —A study discusses how advances in global lightning detection have provided novel ways to characterize explosive ...
Dec. 3, 2020 —Trained dogs are better at detecting explosives and narcotics than any technological device scientists have invented. However, training dogs to detect hazardous substances can be inconvenient for the ...