 Hi, I'm Vince Whitfield with the NASA Scientific and Technical Information Program. Today, we're at NASA Langley Research Centre, where some of NASA's best are working to advance and develop new technologies to improve our everyday lives and even benefit all of humankind. Did you know, NASA has been contributing to the advancement of the aviation industry for decades. Some of these environments include damage-tolerant fan casings, glass cockpits, icing detection and even grued runways, which have improved aircraft tire friction performance in wet conditions by as much as 300%. A green-related technology that was developed and tested here at NASA Langley is a Pultruded Rod Stitched Efficient Unitized Structure, or PERCIOUS. The stitches and PERCIOUS structures are used to join lightweight composite material layers together to help in the development of lighter, damage-tolerant aircraft. Traditionally, aircraft components are held together using rivets and bolts. This requires that holes be drilled into components, which increases the likelihood that cracks can develop and pose other safety concerns over time. PERCIOUS would allow aircraft to be constructed without these fasteners, which would assist in a lighter and stronger final product. This reduced weight structure could help allow jet engines to burn less fuel, therefore making it safer and greener to fly. For more detailed information about NASA's PERCIOUS composite design, you can find the conference paper titled Development of the PERCIOUS Multi-Bay Pressure Box for a Hybrid Wing Body Vehicle on the NASA Technical Report Server, or NTRS. The NTRS is one of the world's largest repositories of aerospace STI and features records dating from the NACA era to today's cutting-edge research. That's all for today. Thanks for watching and we'll see you next time.