Award Data

Piezoelectric ceramics in sensors have achieved substantial market penetration. These parts are used widely for heat and climate control, hydrophones, flow sensors, medical and industrial sensing and accelerometers but they have been unsuccessful in gaining significant use in actuators. It generally is felt that material restrictions, precluding development of actuator-sized displacement strokes ...

It is the purpose of this work to investigate all feasible hydrogen-based fuel cell forms capable of being used in military applications. Current support equipment found on naval and marine ships are being powered by diesel generators or batteries. These power sources are plagued with noise, pollution, refueling and corrosion problems. A fuel cell provides an alternative to these power sour ...

We propose to develop inexpensive, self-adapting, anomaly detection algorithms and to apply them to critical monitoring tasks. Specifically in Phase I we focus on mechanical failure of pumps which are used in key Navy systems, for example, for ship board fire pumps. Prior experience with data sets from Helicopter transmissions and induction motors suggest that similar such anomaly detection ...

The proposed Phase 1 approach utilizes a material system, the I-III-VI2 compounds, for which some early success in the fabrication of laser devices and LEDs has been achieved in Japan. The benefits to this material include: ease in forming p-n junction, greater thermal conductivity, higher bond strength in the crystal, less thermal stresses and ease in making metal contacts. The proposed effort in ...

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This proposal relates to the emerging technique of high precision ultrasonic velocimetry that has provided unique and remarkable insights on bimolecular interactions. Often much of the driving force for macromolecular associations comes from reorganization of bound water. The unique sensitivity of sound velocity to changes in hydration makes it a powerful technique which can complement and sometim ...

Secure broadcasting mechanisms play an important role in satellite-based communications networks. In this Phase I SBIR project, Artery Communication Technology Inc. proposes a scalable secure data broadcasting architecture that is both bandwidth efficient and as secure as state of the art public key cryptosystems. The major emphasis of this project is to analyze the detailed performance behavior ...

Modeling and simulation (M&S) provides the potential of serving as a cost-effective expedient for developing, acquiring, testing, and fielding new technologies for the future battlefield-provided the limitations of existing tools and techniques can be overcome. As the Army focal point for communications M&S, the U.S. Army Communications-Electronic Command (CECOM) has the lead for performing M&S t ...

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This SBIR Phase I project seeks to provide large seeds for the hydrothermal growth of centimeter-size lead zirconate titanate (PZT) crystals. Large crystals of strontium titanate (ST) and lanthanum alumminate (LA) share the same perovskite crystal structure with PZT and are readily available candidate for the heteroepitaxial growth of PZT. There is, however, a large a-axis lattice mismatch that ...