Award Data

If aquaculture is to become an increasing contributor to the food supply, it is critical that aquaculture feeds become less reliant on marine-derived fishmeal and fish oil as the preferred source of essential proteins and lipids. Not only is the wild fishery from which these products are extracted at maximum sustainable levels of harvest, but also there is increasing concern that these feedstocks ...

The current tested and proven LBVDS system is limited in the platforms that can host it due to the large volume and weight requirements of the system. Active Signal Technologies proposes to retain the high power density features of the system, but modify it to retain as much performance as feasible in a much smaller package. To achieve this, we will perform a rigorous study of materials, transdu ...

The objective of this research is to develop alternatives for a total planning system solution for use of environmental sensor data for the tactical ASW warfighter. This software will be used for pre-flight planning to evaluate alternatives and develop effective tactical search plans based on available environmental data and threat data, to provide recommendations for additional insitu environm ...

The objectives of this research are to design and develop a software prototype of a realistic ocean simulation system primarily to support development of environmental sensors through more precise evaluation of sensor design alternatives. This simulation system, the Environmental Sensor Simulation System (ESSS), must accurately represent the ocean''s spatial, azimuthal and temporal dependencies. ...

In Phase I Robust Towed Array Beamforming (RTAB) work, Applied Hydro-Acoustics Research, Inc. (AHA) developed and tested several candidate algorithms, including a data-adaptive "Hole-Filling" algorithm, that recover losses of acoustic performance resulting from acoustic channels failures. With SURTASS TwinLine-R sea-test data we have shown a 2 to 3 dB improvement in quiet beam levels by "hole-fill ...

Reducing reverberation noise, and increasing resolution drive the ability to detect, and classify underwater mines in a shallow littoral environment. This proposal addresses the problem with an analysis of reverberation noise from recorded sea tests, adaptive beamforming (ABF), and adaptive direction of arrival estimation (ADOA). In the reverberation noise analysis phase, the primary focus will be ...

The interface is often a limiting factor in determining the durability of composite materials used in harsh environments. Attaining a well-bonded interface is particularly difficult with low-temperature curing matrix resin systems. A need exists for a carbon fiber adhesion promoting finish that is compatible with vinyl ester chemistry. Prior work using reactive coupling agent chemistries modifi ...

Asbestos insulation material has been used in shipboard environments for many years. While the material is usually safe when left undisturbed, it becomes a major health hazard during removal. The fine, needle like crystals that can be released into the air during handling are inhaled into the deep parts of the lung where they are known to cause cancer. Current removal procedures require a compl ...

New high temperature sizings are needed that are compatible with resin infusion processes to improve the properties and durability of carbon/polyimide composites. Compatibility with resin infusion processes includes compatibility with weaving and braiding operations and improved wetting with the infusing polyimide resin. Achieving these characteristics will result in reducing life cycle costs. ...

This Phase II proposal outlines a development plan for a low-cost Wireless LAN system to address the need for reducing wireless signal degradation associated cost to meet the modem NAVY shipboard communication requirements. AEPTEC has concluded from the Phase I of the work that Ultra-wide band (UWB) and SoftRadio are two prominent technologies could affect WLAN design most in terms of achieving m ...