Award Data

Previous studies have shown that superhydrophobic surfaces have skin-friction drag reducing properties in the laminar flow region, but not in the turbulent flow region. The drag reducing properties of superhydrophobic surfaces are recognized to result from air voids trapped in the surface, and the apparent lack of effectiveness in the turbulent flow region could result from: (1) lack of robust air ...

Networks of UAV’s equipped with video sensors promise an affordable capability to keep track of moving ground targets of military interest in an urban environment in the presence of target occlusion, clutter, and other background traffic. But maintaining continuous track on multiple targets that move in and out of the field of view of any single UAV’s sensor poses a significant problem of cont ...

In this Phase I project Pharad and UCLA propose to create new physically small, electrically large HF antennas for vehicle-mount and man-portable applications. We will utilize a combination of antenna size reduction techniques: volumetric engineering; fractal structures; and slow-wave structures to realize novel small, efficient 2 - 30 MHz radiators that meet the size requirements of 500 cubic ce ...

This proposal addresses the need for miniature, low power, reagentless, robot-mounted, instruments for real-time detection and classification of trace concentrations of biological and chemical agents on surfaces. Deep UV laser induced native fluorescence (UVLINF) is the most sensitive technique for detection and rough classification of trace amounts of biological and organic materials. Photon Sy ...

We propose to prove the feasibility of using time domain terahertz (THz) non destructive evaluation (NDE) to inspect turbine blade thermal barrier coatings (TBC). High speed, non contact THz inspection will be useful both during the manufacturing process, during maintaince, and during recoating. Low thermal conductivity ceramic coatings that are deposited on Ni-alloy turbine-engine blades to pr ...

This Small Business Technology Transfer Program Phase I objective is twofold. During both depot and field repair operations the coating system is removed using mechanical and chemical stripping methods that result in removal of some of the metallic cladding. The removal of the cladding during paint stripping makes the underlying high strength aluminum alloy more prone to corrosion. Thus, the fi ...

The video surveillance industry is experiencing dramatic change with the move from analog to digital video. Command centers need to have coordinated viewing of multiple camera feeds at one time, and the ability to switch automatically between feeds and display relevant patterns. Conventional security control rooms include a bank of monitors connected through a switch to an array of security camera ...

It is proposed to develop a large area quantum dot light emitting devices to address the problem of Unmanned Aerial Vehicle (UAV) signature management. Using photo detectors to modulate the color and intensity of incident light on opposing surfaces, flexible light emitting arrays can be actively tuned to make UAVs nearly invisible.

It is the purpose of this Phase I STTR program to both demonstrate proof of concept of long nanotubes as receiving and transmitting microwave antennas, and to develop detailed simulation tools to predict their performance and determine the optimum geometry. This will build on four years of UC Irvine experience fabricating mm long individual single walled carbon nanotubes, and pioneering theoretica ...

A new approach is proposed for high fidelity analysis of aeroelastic characteristics of integrally bladed rotors. This new multiscale approach for nonequilibrium flow path analysis will yield high fidelity solutions including all turbulence scales at a fraction of the computational cost of RANS. Integration of this advanced capability within an existing multidisciplinary, multifidelity, transien ...