Award Data

The design of Unmanned Aerial Vehicles (UAV’s) is a complex process of creating a reliable system of reasonable cost that can survive in hostile environments. Although UAV’s have unique aspects to them, similar goals can be found in almost any complex, competitive product. One aspect of the design of these systems that tends to be both difficult and poorly supported with available computer ...

The main objective of this program is to develop a new class of high performance hard magnetic materials that will maintain an energy product of 30 MGOe or greater at temperatures up to 450 °C. These novel magnetic materials are greatly needed for the "more electric" airplanes and space vehicle applications where a high operating temperature is a strict requirement. The approaches to be used for ...

78357 Better measurement technologies for rapid, in situ analysis of carbonaceous aerosols is a critical need for DOE research programs in climate change and clean vehicle technology. The identification and quantification of both the vapor and particulate phases of these compounds, as well as the determination of their natural abundance under typical atmospheric conditions, has not been establishe ...

The goal of the proposed work is to construct a mathematically rigorous framework for evaluation and refinement of feedback control of UAVs in the presence of intermittent, dynamic, asynchronous communication. The feedback control includes a)application-layer cooperative processes (i.e., exercising team autonomy to accomplish a mission); and b) network-layer cooperative processes (i.e., to maximi ...

75353-Low cost, self-powered wireless sensors that never require battery changing or other maintenance are needed for U.S. industrial production lines, in cars and buildings, and power generation systems. Systems of these sensors will enable a revolution in industrial efficiency, safety, and reduced maintenance costs. This project will develop a wireless sensor with an integrated vibration-power ...

The use of coated HT superconductors in the ac windings of electrical machines offers the possibility of much lighter electrical devices. To use these conductors at proposed high frequencies, present “as-manufactured” conductor geometries must be modified to reduce their ac loss by using fine filaments and other topologies). Equally important are more global winding losses requiring suitable ...

Boron has significant potential as a high energy density ingredient in ramjet propellants and fuels. This is due to boron's high heat of combustion and low atomic weight. For a ramjet ducted rocket, theoretical volume specific impulses of 1600- 1800 sec g cm-3 have been reported for a fuel rich boron solid propellant, 45 % greater than the best hydrocarbon composition. Boron's high ignition tem ...

Development of an innovative analysis and software modeling capability is proposed for aeroservothermoelastic evaluation of air-breathing hypersonic wave rider vehicles. The interface of the airframe dynamic vibration modes with highly nonlinear hypersonic flows is modeled using a particle-based material point method (MPM) in an integrated dynamic fluid-structure environment. MPM is essentially ...

Future IRCM laser transmitters are being developed based on optically pumped GaSb mid-infrared semiconductor laser, however, the current technology requires the laser to be operated at cryogenic temperature. Aculight and MIT Lincoln Laboratory propose toinvestigate methods to increase the operating temperature of these semiconductor lasers, which will dramatically decrease the cost of the laser t ...

73189B03 I Upon transmitting or receiving messages, the classical network interface card (NIC) generates an interrupt to the operating system kernel and thus to the host processor, which must service the interrupt. As network speed increases towards 10 Gigabit Ethernet, the host can be tied down with interrupt latency. New Operating Systems (OS) Bypass systems (hardware and software) are needed ...