Award Data

"In future advanced military diesel engine propulsion systems, the engine's tribological considerations have been limited by the temperature capability of the lubricating fluid. Thermal oxidation resulting in lubricant breakdown and formation of films anddeposits are typical causes of engine failure in the high operating conditions projected for Low Heat Rejection (LHR) type diesel engines. Work ...

"A small engine concept is being proposed for a 0.25 cid two-stroke commercially available engine that will allow the elimination of volatile fuel additives and lubricating oil. The concept will lead to fuel consumption improvements and increases in powerdensity in heavy-fueled small bore homogeneous compression ignited engines. The concept includes the use of solid lubrication coatings and therma ...

"This proposal comprises research efforts to study a dynamic non-stationary friction regime with a variable range of external factors or parameters. This research method considers the development of special non-linear mathematical models for enginetribology including the lubricating oil film thickness as a function of a series of independent parameters in extreme working conditons. These models ...

"Improving filtration technology for military vehicle engine lubrication systems remains a significant challenge. Equipment failures due to improper or excessive periodic maintenance contribute substantially to the overall cost of maintaining militaryfleets and create combat ineffectiveness during mission critical operations. Current systems have short filter life span and do not provide satisfa ...

"Increased demands for data capacity, combined with increasingly limited spectral resources, are rapidly exceeding the capabilities of current communications systems in the battlefield. As in the commercial sector, the nature of the data demand isincreasingly multimedia, with a variety of quality-of-service (QoS) requirements imposed on a shared spectrum. The communications infrastructure for th ...

"Implementing a wireless LAN system for dismounted soldiers presents a number of problems that distinguish it from a commercial LAN system. Some of these unique, difficult problems include the lack of any in-place network support system, severe multi-pathand fading conditions, and mobility requirements that need extended ranges of coverage. In addition to communication performance, the LAN unit ...

"Early and effective hemodialysis can decrease mortality of trauma patients with acute renal failure, but current technology is not easily deployed in the field or during transit of patients. The "Redy" machine using the Sorb column was portable andutilized only 6 liters of water but did not make dialysis more automated or intrinsically safer. The SHD now being developed by Ash Medical utilizes th ...

"This Phase I SBIR program is aimed at demonstrating the principle of an approach for the surface preparation of SiC wafers comparable or superior to chemo-mechanical polishing. In the Phase I program, surface preparation of 4H-SiC wafers 50 mm (2 inches)in diameter will be demonstrated. Also in Phase I, the prepared (treated) surface of the SiC wafer will be characterized for average surface ro ...

"This Phase I program is aimed at demonstrating the principle of an approach for the growth of 4H-SiC boules 50 mm in diameter but of length equal to 50 mm, which is approximately twice the length of boules grown by convential approaches. Also in Phase I,the grown boules will be sliced into wafers, lapped, and polished; the polished wafers will be characterized for structural properties; comparis ...

"We intend to increase by an order of magnitude, the current density of silicon-based tunnel diodes. This increase directly relates to a corresponding increase in performance (speed). Apart from being the fastest of all microelectronic devices, tunneldiodes (TDs) have negative differential resistance, which gives them unusual circuit qualities. When attached to integrated circuits they improve the ...