Award Data

A CATHODE WILL BE DEVELOPED WHICH MINIMIZES THE HEATING POWER REQUIRED PER AMPERE OF ELECTRON GUN BEAM CURRENT, IS OF STUDY CONSTRUCTION TO WITHSTAND ROCKET FLIGHT, DOES NOT DETERIORATE DURING EXPOSURE TO ATMOSPHERIC GASSES WHILE COLD AND PRODUCES AT LEAST TENS OF AMPERES CURRENT. AN ELECTRON GUN WILL BE DESIGNED WHICH WILL BE CAPABLE OF TENS OF AMPERES BEAM CURRENT AT ENERGIES UP TO TENS OF KILOV ...

ABSTRACT: CubeSats provide a new, low-cost platform for space weather missions. They enable new mission paradigms, such as the ability to perform multiple measurements of the same physical phenomena globally from several satellites, in contrast to high accuracy measurements of multiple phenomena on the same spacecraft. Flight-tested neutral wind sensors must be miniaturized to fit into these mu ...

THE TASK GOAL IS TO IDENTIFY A COMPLETE SET OF OPERATING SYSTEM PRIMITIVE (OR LOW-LEVEL OPERATING SYSTEM FUNCTIONS) WHICH ARE SUFFICIENT TO SUPPORT REAL-TIME MULTI-TASKING APPLICATIONS, WHICH ARE COMPATIBLE WITH ADA PROGRAMMING ENVIRONMENTS, AND WHICH ARE AMENABLE TO EFFICIENT IMPLEMENTATIONS IN MICROCODE OR HARDWARE. TECHNIQUES TO EVALUATE THE FEASIBILITY OF SUCH IMPLEMENTATIONS IN VARIOUS ENVIRO ...

ABSTRACT: Combustion stability is critical to the performance of augmented military jet engines. Instabilities such as screech can result in reduced augmentor performance, blowout, or even catastrophic failure. Screech remains a difficult problem to predict and mitigate, and its occurrence can limit the operational flight envelope of military systems. Many of the passive techniques used to sup ...

A FLIGHT MODULE WILL BE DESIGNED AND CONSTRUCTED THAT WILL LEAD TO THE CONSTUCTION OF AN ELECTRON GUN SUITABLE FOR ROCKET, SPACE SHUTTLE, AND SATELLITE FLIGHT. AN ELECTRON GUN MODULE WITH A WIDE DYNAMIC RANGE IN CURRENT. ENERGY, ANDDENSITY WILL BE CONDTRUCTED, CAPABLE OF AT LEAST 100 MILLI- AMPERES AND ABOVE 10 KILOVOLTS BEAM ENERGY. A CATHODE WILL BE DESIGNED TO MEET THE ABOVE SPECIFICATIONS AND ...

Future DoD cryogenic cooling applications include space missions with relatively large cooling demands. These include space-based lasers, orbital transfer vehicles requiring cooling of stored fuels, and space-based platforms using large arrays of infrareddetectors. Loads for these applications will range from several watts to tens of watts. Temperatures of interest are between 10 and 100 K. Cu ...

Future DoD cryogenic cooling applications include space missions with relatively large cooling demands. These include space-based lasers, orbital transfer vehicles requiring cooling of stored fuels, and space-based platforms using large arrays of infrareddetectors. Loads for these applications will range from several watts to tens of watts. Temperatures of interest are between 10 and 100 K. Cu ...

ABSTRACT: Advanced space-borne electro-optical payloads require cooling at temperatures of 10 to 20 K. Cooling loads for these detectors will range from 0.25 W to 1.0 W at the primary load site, with additional loads at higher temperatures. During this program, we propose to build and test a multi-stage hybrid cryocooler that is optimized for cooling at a primary load temperature of 10 to 20 K. ...

ABSTRACT: Advanced space-borne infrared detectors require cooling in the 10 to 20 K temperature range. Cooling loads will be approximately 0.25 W to 1.0 W for the detectors, with additional loads at higher temperatures for other subsystems. A multistage cooler, capable of providing refrigeration at more than one temperature simultaneously, can provide the greatest system efficiency and lowest m ...

More than 6,000,000 auto accidents occur in the U.S. each year, with about one third resulting in injury and 40,000 resulting in fatality. Approximately thirteen percent of these crashes involve pedestrians. A much broader group of generalized roadway obstacles including pedestrians, other automobiles and non-fixed objects, is responsible for over ninety percent of the accidents. A reasonably p ...