Historically, there have been various approaches to problems relating to the detection of small, weak, or hidden objects, substances, or patterns embedded in complex backgrounds. One approach has been to use low-dimensional sensor systems that attempt to detect a clean signature...

The Centers for Disease Control and Prevention (CDC) listed more than 5,000 cases of the Zika virus in the U.S. from January 2015 to February 2017. The vast majority of those cases were travelers returning from affected areas. Florida has the highest number of cases of the Zika virus at 1,069...

This technology provides means of estimating numerical errors in user-specified output functionals, such as lift or drag, for fluid flow simulations. The new method computes an improved estimate of the output (relative to the baseline simulation), an estimate of the...

Flocks of birds, schools of fish, and colonies of ants exhibit a remarkable robustness and resilience, despite the limited capabilities of each individual. Recently, research into bio-inspired swarm robotics has been gaining popularity due to the low-cost, robust, redundant, and...

Printing high-resolution living tissues is difficult, as the cells often move within printed structures, and can collapse on themselves. A method of 3D-printing laboratory-grown cells to form living structures was developed that produces tissues in self-contained cells that support the structures...

Currently, the synthesis of nanomaterials relies on special inter-particle chemical and physical reactions, which restricts their development. However, stress-induced nanofabrication can effectively render arrays of nanomaterials uniform in length, diameter, and density.

A new class of polymeric materials was developed with resistance to heat, dielectric breakdown, and oxidation at high temperatures. For applications that demand high temperature resistance coupled with greater strength, these polymers can be easily transformed into ceramics with...

Stereoscopic time-resolved visualization of three-dimensional structures in a hypersonic flow was performed for the first time in NASA Langley Research Center’s 31-inch Mach 10 Air Tunnel. Nitric oxide (NO) was seeded into hypersonic boundary layer flows...