Award Data

A FEASIBILITY STUDY ON THE DEVELOPMENT OF A STOICHIOMETRIC DIESEL ENGINE IS PROPOSED USING THE THERMAL IGNITION COMBUSTION CHAMBER. THE ADIABATIC DIESEL ENGINE WITHOUT WATER OR AIR COOLING ALLOWS THE THERMAL IGNITION CHAMBER TO STORE HEAT DURING COMBUSTION AND RELEASE THE ENERGY FOR IGNITION IN THE FOLLOWING CYCLE. INJECTION OF FUEL ON TO 1800-2000 DEG. F WALL TEMPERATURE WILL PREPARE THE FUEL FOR ...

A modified engine cycle based on the early intake valve closing of the Miller or the Adkinson cycle is proposed to meet the needs of the future Military Advanced Diesel Engine. The concpet involves the principle of short, effective compression with long expansion ratio to provide high brake thermal efficiency. This concept is executed by a variable timing rotary valve placed before the standard in ...

PDRI proposes to develop a computer-administered and scored situational judgment inventory to predict combat pilot performance. Situational judgment inventories present respondents with a series of job-relevant situations and ask them to indicate which of several alternative actions would be most effective and which would be least effective in each situation. This inventory will consist of items d ...

DESIGN AND PRODUCE FUNCTIONAL PROTOTYPE OF A SMALL SELF-CONTAINED ACOUSTIC SIGNAL SOURCE TO BE DEPLOYED AT SEA, WHICH WILL INJECT AN OPERATOR-SELECTED PULSE TRAIN AT SOURCE LEVEL AT 225 DBRE LU PA INTO THE WATER AT DEPTHS PRESELECTED FROM 100 TO 1500 FEET. PULSE TRAIN ACCURACY SHALL BE BETTER THAN 50 MILLISECONDS; PULSE DURATION SHALL BE LESS THAN 250 MILLISECONDS. A MULTI-REDUNDANT SAFETY AND ARM ...

THE OBJECTIVE OF THE PROPOSED WORK (PHASE I AND II) IS TO DEVELOP A COMPUTER PROGRAM FOR MODELING COMPLEX THREE-DIMENSIONAL FLOWS ENCOUNTERED IN NAVAL APPLICATIONS. THE SOFTWARE WILL BE BUILT ON CREARE'S FLUID FLOW MODELING CODE FLUENT/BFC. IN PHASE I, WE WILL DEVELOP THE SPECIFICATIONS FOR THE ENHANCEMENTS TO BE ADDED TO THE PROPOSED CODE. TO DEMONSTRATE THE CURRENT CAPABILITIES OF FLUENT/BFC,WE ...

Vertical Line Arrays (VLAs) have the potential of significantly improving the performance of underwater acoustic systems in shallow water scenarios. Realizing this improved performance in a low storage volume, cost effective system is dependent on an Integrated Hydrodynamic Deployment System which ensures optimal acoustic performance of the Navy's VLA. Creare proposes to develop such a system whic ...

We propose development of an innovative system for converting the energy content of refuse to electricity. The key element of the system is a supplementary-fired exhaust-heated gas turbine that has a thermal efficiency of 50%. The engine has two combustors: (1) an exhaust-heating combustor that is fired by refuse-derived fuel (R. D. F.); and (2) a primauy combustor that is fired by a conventional ...

Current fabrication techniques for millimeter wave (MMW) waveguide assemblies are inherently costly and poorly suited to realizing economies of scale. Improved processes for manufacturing these components at reasonable costs are required to exploit recent advances in MMW technology. In this project we will develop and demonstrate an innovative superplastic forming (SPF) production process for the ...

THE OBJECTIVE OF PHAE I IS TO DETERMINE BY AN ANALYTICAL STUDY THE OPTIMUM DESIGN APPROACH, OR APPROACHES, FOR SOLID-STATE ELECTRICAL FAULT CURRENT LIMITERS FOR THE CURRENT RANGE OF 15 TO 5000 AMPERES. THE ANALYTICAL TRADEOFF STUDY WILL INCLUDE THE FOLLOWING TASKS: 1) DEFINITION OF CURRENT LIMITER REQUIREMENTS, 2) DEFINITION OF TRADEOFF ANALYSIS CRITERIA, 3) DEFINITION OF CANDIDATE CURRENT LIMITER ...

Saphikon, Inc. has successfully demonstrated 12 x 24 inch sapphire sheet growth using the Edge Defined Film Fed Growth (EFG) technique. Therefore the focus of this program is to identify and demonstrate solutions to the technical problems imposed by the strict specifications of the "electronic grade" sapphire demanded by SOS applications. The requirements for the sapphire substrate are well unders ...