Award Data

ALGORITHMS BASED ON NONLINEAR FREQUENCY ANALYSIS OFFER THE POTENTIAL FOR A NEW GENERATION OF MORE POWERFUL SURVEILLANCE ALGORITHMS. THE FUNDAMENTAL ARCHITECTURES FOR THEIR COMPUTER IMPLEMENTATION ARE THE SUBJECT OF THIS STUDY.

FOUR BEARINGLESS, SHAFT MOUNTED GENERATORS WITH OUTPUTS OF 10, 100, 500 AND 1000 WATTS OF 12-15 V DC WILL BE DESIGNED AND COMPUTER MODELED TO BE DRIVEN BY MODEL AIRPLANE SIZE RECIPROCATING ENGINES. DESIGN COMBINATIONS OF IRONLESS DISK AND IRON LAMINATION CYLINDRICAL GENERATORS USING RARE EARTH AND CERAMIC PERMANENT MAGNETS WILL BE MODELED FOR RELIABILITY WITH THE LOWEST WEIGHT AT THE HIGHEST EFFIC ...

COMPACT SOFTWARE PROPOSES TO DEVELOP PHYSICS-BASED MESFET, HEMT AND HBT MODELS AND THEN INTEGRATE THEM INTO OUR COMMERCIAL MICROWAVE NONLINEAR CIRCUIT SIMULATOR, "MICROWAVE HARMONICA." EXISTING EXTRACTION BASED MODELS SUCH AS THE MODIFIED MATERKA AND CURTICE MODELS ARE BASED ON MICROWAVE MEASUREMENT INFORMATION. THE USE OF PHYSICS OR PROCESS-BASED MODELS COMPLETES THE ANALYSIS CHAIN BY LINKINGPROC ...

RESONANT ULTRASOUND INSPECTION CAN RAPIDLY FIND CRACKS FLAWS AND TOLERANCE ERRORS IN SOLID STRUCTURES. IN METALLIC BEARINGS, WE HAVE MEASURED SPHERICITY TO 50PPM (.0002 MM IN .5 CM BEARING) AND, IN ADDITION, WERE ABLE TO DETERMINE THE PRESENCE OF FLAWS WITH THE SAME SENSITIVITY. RECENT TESTS BY LANL, USING A JOINT LANL/QUATRO PATENT DISCLOSURE, HAVE INCREASED THIS SENSITIVITY SEVERALFOLD, HOWEVER, ...

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Piezoelectric ceramics in sensors have achieved substantial market penetration. These parts are used widely for heat and climate control, hydrophones, flow sensors, medical and industrial sensing and accelerometers but they have been unsuccessful in gaining significant use in actuators. It generally is felt that material restrictions, precluding development of actuator-sized displacement strokes ...

Bio Array Solutions (BAS) proposes to apply its novel platform technology of light-controlled Electrokinetic Assembly of Particles near Surfaces (LEAPS) to develop an analytical system in a planar, "on-chip" format. Combining AC (and/or DC) electric fields with interactive light control, LEAPS provides a tool set of fundamental operations to control the transport and positioning of particles and ...

A synthetic aperture radar (SAR) micro sensor of extremely low weight and power, and small size is proposed. The sensor offers a low-cost, all-weather/all-visibility-conditions high-resolution imaging capability from a small UAV to individuals and small units for surveillance and targeting purposes. In addition to being able to see through smoke, fog, etc. and its around-the-clock mission capabi ...

It is well known that Gen III image intensifiers based on Negative Electron Affinity (NEA) photocathodes and micromechanical plates suffer from a major limitation of having the long wavelength cutoff limited only to about 950 nm. For that reason, it has poor modulation transfer function and correspondingly lower performance in starlight and in the overcast starlight levels. To develop a new type ...

We propose to design, demonstrate and develop highly stable, single-mode vertical cavity surface emitting lasers (VCSELs) operating at 1.55¿m. The large free spectral range (FSR) of vertical cavities implies that VCSELs can operate inherently in a stable single-mode. Also, they can be easily fabricated to emit low-divergence circular beams. In Phase I, we will deliver individual VCSELs opera ...