"Critical" fasteners made after July 26, 1998 must be tested by an accredited laboratory or produced by an approved manufacturing plant. The deadline represents a 60-day extension of previous delays in implementing the Fastener Quality Act (FQA) of 1990. The National Institute of Standards and Technology has required extra time to complete its approval of some 450 testing labs needed to carry out the act. FQA sets up a national program to ensure that certain nuts, bolts, and other fasteners used in "critical situations"--such as the attachment of aircraft engines to fuselages--conform to specifications. The government, meanwhile, also has defined the in-process quality inspection systems that fastener manufacturers can use to test their lots for FQA compliance. Operators of such lines can be provisionally certified, but they must complete official certification by May 25, 1999.
For decades, engineers have worked to combat erosion by developing high-strength alloys, composites, and surface coatings. However, in a new paper, a team at Jilin University in China turned to one of the most deadly animals in the world for inspiration -- the yellow fat-backed scorpion.
Green energy is being billed as a way to make communities that are energy deprived more self-sustaining. So it makes sense to use natural materials to create devices that harvest this type of energy. That’s the idea behind a hybrid wind/solar energy harvester made of bamboo that’s been developed by UVM researchers.
Anyone who’s ever moved files from a hard drive to a computer has sat patiently waiting for the transfer to complete. But what if this process could be done wirelessly, without having to connect devices with cables, and in seconds?
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.