Award Data

The ability to thoroughly search large numbers of scholarly information sources is vital to DOE researchers to accelerate scientific advances that address the nation's pressing energy and security problems. While large-scale federated search deployments provide the best hope of making research highly efficient and effective, there are barriers to scaling. Cloud computing is an important approach t ...

Performance bottlenecks in federated search limit the benefits of the technology to DOE researchers, to other scientists and to the public. We will assess the performance bottlenecks of Deep Web Technologies' federated search technology in Phase I and make performance improvements in Phase II. We performed a rigorous assessment of the information flow in our federated search technology. We iden ...

The proposed multi-spectral IFF beacon will use 40 to 50 % effient high power laser diodes at 863, 1064, and 1550 nm wavelengths. Thermal emitters including diamond-like carbon thin films, photonic crystals, and quantum cascade lasers will be characterized and compared. Finally a model to predict the detection range of IFF beacons will be developed using proprietary emitter power and atmospheric ...

Diffraction LTD will develop a multi-spectral battery powered combat ID beacon. Key emitter technologies will include vacuum encapsulated photonic crystals in the MWIR and LWIR spectral bands. In Phase 1, a complete optical, electrical, and mechanical design of the beacon will be produced. A model taking into account emitter characteristics, atmospheric transmission, ambient lighting, and vario ...

The Air Force has identified a need for an advanced traveling wave tube amplifier (TWTA) that supports future generations of broad bandwidth, efficient and linear military satellite communication. To address this need, InnoSys proposes to develop innovative solutions for advanced TWTAs that operate from 81 to 86 GHz, deliver high efficiency greater than 30% with a relatively high saturated gain g ...

In this program, DSR proposes to develop test equipment that can be used by the Air Force to begin investigating inert and live explosive material properties under different pressure and temperature environments. Strain-rate levels will be adjustable with this equipment and will vary between 10-5-10-2 s-1 dependent upon the stiffness and strength of the test material. When completed, 25.4-mm-dia ...

In Phase-I of this work, a steady state model incorporating the most important nonlinear effects was successfully developed to analyze passive phasing of fiber amplifier arrays. This work showed a technique of reverse pumping to mitigate Four-Wave Mixing (FWM) and Cross-Phase Modulation (XPM) in fiber amplifiers. In Phase II we propose to extend the modeling developed in Phase-I to include time-de ...

This Phase II program builds upon the success of the Phase I conceptual design effort, in which novel architectures and techniques were developed in order to create a wide-band hyperspectral fundus imager. This device allows hyperspectral retinal images to be collected over the entire transmission range of the eye, an unprecedented capability. The device is designed to allow an adaptive optics mod ...

Our recent developmental efforts have successfully produced the design for a chip slapper with a reduction in the average size (miniaturization), weight and cost of these particular chip slappers. The processes that we have established in the production of this chip slapper have reduced the number of assembly stages for this particular assembly configuration and/or application. Production of this ...

Efficient production of hydrogen from abundant fossil fuel reserves along with effective CO2 sequestration processes can lead to reduction of greenhouse gas emissions and elimination of dependence on foreign oil. Currently, hydrogen production via water-gas shift (WGS) reaction of either a coal-derived syngas or natural gas steam reformate, coupled with pressure-swing adsorption is the most econom ...