Abstract:Practical use of a regenerative fuel cell (RFC) for solar powered aircraft and similar high altitude applications is limited due to a lack of proven technology designed for mission requirements. One of the most important issues to be addressed for high altitude airship… more
Abstract:78769S Power converters that convert electrical power from variable and disparate voltage sources of varying frequency are needed for a variety of systems where wind turbine, fuel cell, photovoltaic, hydrogen, and microturbine generators are used. In… more
Abstract:78341S The international science community recently selected a superconducting approach for the next generation electron-positron collider. This machine will require nearly 600 high voltage modulators and power supplies, capable of driving the accelerator's L-band klystrons. … more
Abstract:79505S The Rare Isotope Accelerator (RIA) needs a number of radio frequency (RF) amplifiers at a range of frequencies. This project will develop a modular, VED (Vacuum Electronic Device) based, RF amplifier for the RIA and commercial RF power applications, based on commercially… more
Abstract:…, the shape of airfoils can be dynamically reconfigured to enhance the airfoil?¿s aerodynamic performance. MFC actuators have been commercialized for small scale applications, however using this actuator for active blade control, requires significantly higher drive power than… more
Abstract:…quivalence with 40X conventional microscope optics. The second Aim is to develop prototype image capture & processing electronics that will achieve real-time JPEG2000 image compression and have the potential for enabling real-time image analysis carried out on sixteen PowerPC… more
Abstract:… data and movement from a single sensor. Parallax and convergence problems, headache, costs and lack of depth information are some of the problems that have been mitigated by For3d's approach. Although it is well known that with enough processing power accurate 3d… more
Abstract:… provides the gear reduction required by the actuator. By using a variable displacement pump in the the transmission, the gear ratio can automatically be varied to match the loading conditions. The variable gear ratio allows minimizing the motor size and power for the jet… more
Abstract:We propose to construct a model for devices that use isomers as their energy source by adding the necessary information to Sandia's ITS code. The code can quantify the performance of advanced power sources if an analytical evaluation is insufficient.
Abstract:… at the surface, which makes it more difficult to scale for larger motors. The high conductance of the propellant makes it ideal for a MEMS application as the propellant can be cast in thin layers. Since the propellant will only sustain combustion when electrical power is… more
Abstract:… the acquisition and dissemination of data and ideas. The project emphasizes the big picture in science learning: the relationship between experiments and hypotheses, the idea that theories are models and not reality, that the test of a theory is its predictive power. Most… more
Abstract:This proposal is responsive to NASA 2004 SBIR objectives (under Topic X6.05) seeking gelled propellant formulations "for long-duration missions involving low-power consumption (i.e., minimal use of heaters)." EERGC Corporation, in cooperation with subcontractor Northrop Grumman… more
Abstract:The proposed Phase II effort will be focused on designing, implementing and testing a high-speed, low-cost, low-power, miniature modem capable of downloading and displaying high resolution, full motion digital images from UAVs in real-time. The modulation and coding technology… more
Abstract:… effort, Efficient Channel Coding (ECC) will validate various technologies and concepts for xSTREAM (eXtreme Streaming Transmitter-Receiver for Enhanced Application Micro-UAVs). xSTREAM is ECC's approach to enabling a self-contained, wireless, mobile, ad-hoc, power efficient… more
Abstract:… preventing the energy efficient recovery of materials and valuable components. Electrically releaseable adhesives can remedy this shortcomig. These adhesives form high strength bonds between metal substrates and can be released in seconds by the application of a low power… more
Abstract:There is a continuing need within NASA for solar cells and arrays with very high specific power densities (1000-5000 kW/kg) for generating power in a new generation of ultralight space payloads. An emerging technology with promise to meet these ambitious goals are solar cells… more
Abstract:… damping and other strain-rate dependent behavior. Additional functionality is obtained by sequestering appropriate materials into the second phase. Examples include ionizable salts to provide ionic conductivity, reducible and oxidizable materials for power source… more
Abstract:Battery power is rapidly becoming a major factor in military planning because of the growing power-consuming hi-tech system carried by the soldier on the battlefield. Unless new high-energy power source is developed, they will create a logistics and tactical… more
Abstract:…such imaging applications include: their quantum yields, small size, narrow emission wavelengths which effect little or no spectral overlap among multiple-size QD tags, their photostability, and their very high absorption efficiencies which obviate the need for high power… more
Abstract:… innovative fasteners for attaching modular armor to military vehicles. Bonds formed with these adhesives will provide durable, high strength (>2000 psi shear), mechanically robust attachments, that can be rapidly released, on-demand by the application of a low power current… more
Abstract:We propose to develop flexible solid state polymer-based solar cells that have a power density >1000 W/kg and > 5 year life in the space environment. The specific approach that we will employ it to make intimate organic-inorganic nanocomposites of polymeric electron donors and… more
Abstract:… Reynolds numbers, the aerodynamic flow features are dominated by laminar separation and separation bubble effects, which are the primary source of poor performance in both drag and maximum lift for this class of vehicles. It is proposed to use a robust and powerful active… more
Abstract:… for tag communication has become a key technology for providing In-Transit Visibility of the DOD logistics pipeline, and is critical technology for providing effective logistical support to DOD forces in operational theaters. This technology consists of battery powered… more
Abstract:75527S The sheet-beam klystron holds great promise for providing high RF power for modern linear colliders. However, sheet beam generation is not readily amenable to computer simulation; therefore, experimental validation of the design is sorely needed. This project will… more
There are several categories such as “By Agency”, “By Year”, “By State” etc.
Select a checkbox within a category to refine your search results.
Each of your selections is listed in the “Narrow Search Filters” bar. You can uncheck these selections to remove them.
Search for Either Criteria
When you select multiple values within a category, the results will include values that match either of the selections.
For example, selecting “2005” and “2007” in the “By Year” category will display results that include either 2005 OR 2007 in the results.
Narrowing the Search Results
You can refine your search results across categories. To narrow down your results, select multiple values across different categories. The results will only include values that match the selections across the categories.
For example, selecting “2005” in the “By Year” category and “NASA” in the “By Agency” category will only display the results that contain both “2005” AND “NASA” in the results.