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Tiny particles could help verify goods Posted: 13 Apr 2014 11:00 AM PDT Chemical engineers hope smartphone-readable microparticles could crack down on counterfeiting. Some 2 to 5 percent of all international trade involves counterfeit goods, according to a 2013 United Nations report. These illicit products -- which include electronics, automotive and aircraft parts, pharmaceuticals, and food -- can pose safety risks and cost governments and private companies hundreds of billions of dollars annually. Many strategies have been developed to try to label legitimate products and prevent illegal trade -- but these tags are often too easy to fake, are unreliable, or cost too much to implement, according to researchers who have developed a new alternative. |
Glasses strong as steel: A fast way to find the best Posted: 13 Apr 2014 10:59 AM PDT Scientists have devised a dramatically faster way of identifying and characterizing complex alloys known as bulk metallic glasses, a versatile type of pliable glass that's stronger than steel. The new method allows researchers to screen about 3,000 alloys per day and simultaneously ascertain certain properties, such as melting temperature and malleability. |
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