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dynamically scaled unmanned aerial vehicle (UAV) and associated ground based control system are being developed to investigate dynamics modeling and control of large transport vehicles in upset conditions. The UAV is a 5.5% (seven foot wingspan), twin turbine, generic transport aircraft with a sophisticated instrumentation and telemetry package. A ground(More)
An International Polar Year aerogeophysical investigation of the high interior of East Antarctica reveals widespread freeze-on that drives substantial mass redistribution at the bottom of the ice sheet. Although the surface accumulation of snow remains the primary mechanism for ice sheet growth, beneath Dome A, 24% of the base by area is frozen-on ice. In(More)
The argument underlying this article is that innovative and skillful change strategies are needed in order to handle a range of complex and difficult societal issues. For many of these so-called wicked issues, conventional institutions and policies have performed rather poorly. It can be reasonably argued that societal change agents play a crucial role in(More)
Amorphous and liquid precursors of calcium carbonate are believed to be central species of biomineralization, which serves as an important inspiration for materials chemists in the quest for new and improved organic-inorganic hybrid materials. It has become increasingly clear that magnesium ions exhibit an important function through kinetic stabilization of(More)
An in-model data acquisition system has been developed that can accept inputs fiom various sensors and transfer the data wirelessly to an access point outside a wind tunnel's test section. This system was developed as a potential alternative to the current state of wind tunnel data collection, which requires the use of long lengths of cable carrying(More)
This paper details the design and development of the Airborne Subscale Transport Aircraft Research (AirSTAR) test-bed at NASA Langley Research Center (LaRC). The aircraft is a 5.5% dynamically scaled, remotely piloted, twin-turbine, swept wing, Generic Transport Model (GTM) which will be used to provide an experimental flight test capability for research(More)