Award Data

During aircraft turbine engine operation, augmentor (afterburner) operation is often associated with combustion instabilities (oscillations) that can be potentially detrimental to the turbine engine if the resonant amplitude levels are excessive.Oscillation in the frequency range of 50-100 Hz is commonly called

This subtopic solicited Phase I R&D for an advanced Fourier transform infrared (FT-IR) system that would provide fast-scanning high resolution (3 scans/sec at 1cm-1 resolution), low noise, mid-infrared measurements for characterization of spray flames. In Phase I, Advanced Fuel Research, Inc. (AFR) demonstrated FT-IR emission/transmission (E/T) measurements from the NIST spray combustion faci ...

Rain and dust erosions on aircraft forward facing surfaces such as leading edges, engine inlets, nose radomes, propeller blades, and antennas are serious problems. Due to increasing optical missile threats more low gloss rain erosion coatings are beingused. Current commercial lusterless gray rain erosion coating failed the rain test within 36 minutes when tested at 500mph under 1

Oceanit has successfully shown in Phase I that highly accurate (sub-arcsecond) observations are obtainable utilizing a relatively low-cost COTS system. These highly accurate angular observations can be introduced into the orbit determination process as asupplement to high-quality range data. These improved angular observations help resolve the geometric ambiguity of range-only orbit determinatio ...

The double-clad multicore fiber laser has proven to be the most efficient, optically-pumped laser. In Phase I, we have demonstated that phase-locking occurs spontaneously among a group of closely packed single mode fiber lasers configured isometrically ina common cladding. This result suggests that, by using our unique power combining technique developed at PC Photonics Corporation, high power o ...

Scheduling is a complex, NP-hard problem that challenges the use of any single solution technique. In Phase I, we built a model that uses our multi-technique Quantum Leap Problem Solving Engine to solve a representative but simplified version of the AirForce Satellite Control Network (AFSCN) contact scheduling problem. The system demonstrated that it could schedule the hundreds (500 to 600) of t ...

Silicon carbide promises near-term insertion in high power, high temperature, applications. The wide band-gap and consequent high breakdown field of silicon carbide theoretically allows efficient high power solid state power amplifiers. Its high thermal conductivity will permit compact devices and high power density. To date, virtually all silicon carbide-based devices have been fabricated using 6 ...

ALTHOUGH MANY POTENTIAL TECHNOLOGIES EXIST FOR DEPOSITING EXOTIC THIN FILM DEVICES, CONTROLLING THE MATERIAL PROPERTIES HAS BEEN A MAJOR STUBLING BLOCK TO ACHIEVING SUCCESSFUL AND REPRODUCIBLE DEVICE PROPERTIES. IN THE CASE OF PULSED LASER DEPOSITION (PLD) OF HIGH TC SUPERCONDUCTOR FILMS, THE EMISSION OF THE PLASMA CAN BE CORRELATED WITH THE QUALITY OF FILMS DEPOSITED. BUT THIS MEASUREMENT PROVIDE ...

We proposed in collaboration with Pratt & Whitney to develop advanced coating technology for high-performance gas turbine components, utilizing our innovative, patented, pollution-free, low cost Jet Vapor Deposition process. The JVD process uses supersonic jets in "low vacuum" to propel atoms, molecules, or clusters toward substrates. JVD offers: (1) extremely high rates of concentrated, efficient ...

ANSI HAS COMPLETED A NEW STANDARD FOR DATABASE LANGUAGE SQL, SQL - 1992. THIS STANDARD IS COMPOSED OF THREE LEVELS OF CONFORMACE, FULL SQL, INTERMEDIATE SQL, AND ENTRY SQL. ENTRY SQL IS A SLIGHTLY ENHANCED VERSION OF THE SQL - 1989 STANDARD. THE NIST HAS ACCEPTED THE ANSI SQL-1992 STANDARD WITH SOME MODIFICATIONS. THEY ALSO ADDED ANOTHER LEVEL, TRANSITIONAL SQL, BETWEEN INTERMEDIATE SQL AND ENTRY ...