Award Data

THE PROPOSED RESEARCH WILL PROVIDE A FOCUSED SETOF LABORATORY EXPERIMENTS WHICH WILL HELP TO QUANTIFY SOME OF THE CRITICAL EFFECTS OF JOINTED ROCK MEDIA ON COUPLING OF NUCLEAR EXPLOSIONS. THE SELECTION OF A FOCUSED SET OF LABORATORY EXPERIMENTS WILL BE GUIDED BY THE AVAILABLE KNOWLEDGE FROM THE COUPLING COMMUNITY AND A NUMERICAL (FINITE ELEMENT) PARAMETER STUDY SPANNING THE JOINTED MEDIA COUPLING ...

This project develops low-cost optical beamscanners using fast binary amplitude modulators. The modulators are solder-bumped to silicon drive circuits which have a programmable architecture for rapid, flexible array addressing. The multiple quantum well (MQW) based modulators operate at 850-860 nm with a random access speed over 100 MHz---faster than any known scanner. Preliminary simulation an ...

COHERENT TECHNOLOGIES, INC. HAS RECENTLY DEMONSTRATED THAT A 2 UM COHERENT LASER RADAR (CLR) OPERATING AT 1 MJ/PULSE WITH A 16 CM BEAM DIAMETER, IS CAPABLE OF PERFORMING HARD TARGET RANGE AND VELOCITY MEASUREMENTS TO AT LEAST 50 KM. SCALING THESE RESULTS TO50 UJ/PULSE AND A 5 CM TELESCOPE INDICATE THAT RANGE RESOLVED VELOCITY MEASUREMENTS TO RANGES OF SEVERAL MK SHOULD BE FEASIBLE. WE BELIEVETHAT ...

N/A

DFC, along with TSC and AIG, propose a Phase I effort to study the feasibility of subspace based signal processing algorithms for exploiting multi-spectral, multi-sensor data to detect targets concealed by foliage and/or man-made obstruction. Registration of dissimilar images is accomplished using geometric invariance.

THIS PROPOSAL SUGGESTS A NEW METHODOLOGY, MADE PRACTICAL BY NEW HARDWARE, TO EFFICIENTLY OBTAIN OPTIMUM DESIGN PARAMETERS FOR MILLIMETER WAVE CIRCUITS. THE TECHNIQUE IS BASED ON THE TIME DOMAIN FINITE DIFFERENCE (TDFD) APPROACH TO THE TIME ADVANCING OF MAXWELL'S EQUATIONS. THE SCATTERING MATRIX AND OTHER PARAMETERS CAN BE READILY DETERMINED OVER THE DESIRED FREQUENCY DESIGN RANGE. THE METHOD'S ADV ...

THE TIME DOMAIN FINITE DIFFERENCE (TDFD) METHOD OF SOLVING ELECTROMAGNETIC FIELD PROBLEMS IS A RELATIVELY NEW METHODOLOGY WITH A PROVEN CAPABILITY FOR ACCURATELY ANALYZING PASSIVE MIC/MMIC STRUCTURES. THE TECHNIQUE SUPPLIES COMPLETE SCATTERING MATRICES IN EITHER THE TIME OR FREQUENCY DOMAIN. MILLIONS OF FIELD POINTS CAN BE ANALYZED IN PROBLEM "CUBES" WELL OVER 100 CELLS ON A SIDE. WITH SPECIAL PUR ...

This program is directed towards developing catalytic membrane reactors for promoting the spontaneous conversion of logistic fuels to a gaseous feedstock compatible for subsequent introduction into the anode compartment of a solid oxide fuel cell (SOFC). These membranes behave as short circuited electrochemical cells with both ionic and electronic transport proceeding through the membrane bulk. ...

HEAVY METALS SUCH AS ZINC, CADMIUM OR CHROMIUM ARE ELECTROPLATED IN 5,300 FACILITIES ACROSS THE U.S. DURING THE PAST TWO DECADES, CONSIDERABLE RESEARCH HAS BEEN CONDUCTED TO REDUCE HAZARDOUS WASTE AND MINIMIZE OCCUPATIONAL HAZARDS IN THESE ELECTROPLATING OPERATIONS. HOWEVER, ECONOMICAL ELIMINATION OF TOXIC WASTE OR SLUDGE HAS NOT BEEN REPORTED. IN PURSUIT OF A SOLUTION TO THE ENVIRONMENTAL ISSUES ...

NON-CONTACT RADIOMETRIC TECHNIQUES REPRESENT AN ATTRACTIVE SOLUTION TO THE DARPA TEMPERATURE MEASUREMENT PROBLEM BECAUSE THEY OFFER A TOTALLY NONINVASIVE MEASUREMENT TECHNIQUE WITH EXCELLENT TEMPORAL AND SPATIAL RESOLUTION. HOWEVER, CONVENTIONAL RADIOMETRICTECHNIQUES SUFFER FROM PERSISTENT TEMPERATURE MEASUREMENT ERRORS. THE PROPOSED NEW RADIOMETRIC TECHNIQUES ARE CAPABLE OF SOLVING THE TWO PRIMAR ...