Award Data

The liberation of particles induced by rocket plume flow from spacecraft landing on unprepared regolith of the Moon, Mars, and other destinations poses high mission risks for robotic and human exploration activities. This process occurs in a combination of "extreme environments" that combine low gravity, little or no atmosphere, with rocket exhaust gas flow that is supersonic and partially rarefie ...

Project involves development of new flexible FR polyurethane (PU)insulation foams through a non-toxic environmentally friendly composite approach. Foams have bound-in polymeric phosphonate FRs, with added synergists and smoke suppressants. Such foams will not leach FR. Foams have fine cell structure and excellent flexible foam properties. Cone performance of the identified foam family (368 peak ...

The proposed solution exploits recent advances in computer vision to conceive of a single-camera + gyro + accelerometer vision-based navigation solution such that the processing will be lightweight (requiring only a single optical flow sample per frame). Known landmarks (natural or artificial) will have absolute positions known to planetary exploration worker robots. The worker robot can identif ...

Launch vehicles experience extreme acoustic loads during liftoff driven by the interaction of rocket plumes and plume-generated acoustic waves with ground structures. Currently employed predictive capabilities to model the complex turbulent plume physics are too dissipative to accurately resolve the propagation of acoustic waves throughout the launch environment. Higher fidelity liftoff acoustic a ...

Thermal Stir Welding (TSW) provides advancement over the more conventional Friction Stir Welding (C-FSW) process because it separates the primary processes variables thereby allowing independent control of metal stirring and forging from the stir zone temperature. However, the feedback for precise control of the stir zone temperature, and hence the process parameters to sustain that temperature wi ...

Advances in structured heterogeneity together with nanomaterials tailoring has made it possible to create thermoelectrics using high temperature, polymer composites. While such thermoelectrics do not have the capability to approach the efficiency of top performing ceramic modules such as BiTe, they do provide two unique aspects of use in energy scavenging: the ability to cover large areas easily, ...

The objective of this proposal is to develop three unique energy harvesting technologies utilizing our existing research strengths that will be of interest and utility to NASA applications and environmental conditions. By developing multiple technologies, NASA will be able to harvest energy from multiple waste energy sources, namely environmental vibrations, thermal energy, and solar flux. These d ...

DESCRIPTION (provided by applicant): Standard microfracture is a first-line, widely used and cost-effective surgical technique for repairing damaged articular cartilage, but, it is limited by decreased long-term efficacy and limited applicability in largerlesions. This leads to a burgeoning economic burden associated with primary and follow-up treatment costs, estimated at more than 40 billion dol ...

DESCRIPTION (provided by applicant): Controlling mechanical signal transduction to treat osteoarthritis Abstract The TRPV4 calcium (Ca++) permeable ion channel has been shown to be expressed and functional in chondrocytes, the cells responsible for the maintenance of cartilage in weight-bearing joints. Trauma of joints with subsequent damage of cartilage, as well as chronically increased joint loa ...

DESCRIPTION (provided by applicant): Patients with infective endocarditis (IE) have a poor prognosis with one third of the patients succumbing to the infection within the first year. Treatments for endocarditis involve antibiotic therapy and/or surgery that cost upwards of 100,000 per patient; however, many cases do not respond to the antibiotic treatment and surgery poses high risks. Cases of en ...