Award Data

21st Century Technologies’ (21CT) ACCESS (Automated Comparison and Clustering of Entity SignatureS) research effort addresses the issue of comparing entities such as human personas and networks, so that a more complete assessment of at-risk entities can be made within and across the various domains in which those entities interact. The Phase I effort of ACCESS will provide an effective similarit ...

Available features to detect personas vary depending on the type of intelligence one is observing, and only facets of a persona are observable in each medium. New and enabling technology needs to be developed to search, capture, compare and identify disparate behaviors that may represent personas of interest. In response to this challenge, 21st Century Technologies proposed the Phase 1 Automated C ...

Although the performance of naval systems for Anti-Submarine Warfare and Counter-Torpedo Detection, Classification, and Localization systems are presently adequate for current missions they are limited by the size, power and detection range of the associated sonar transducer arrays. What is required for the emerging missions are approaches that will reduce the volume and weight of present arrays w ...

Friction stir welding (FSW) can produce stronger, lighter, and more efficient welds than any previous process. In aluminum assemblies, FSW provides improved joint strength, fatigue properties and crack resistance compared to conventional arc welded joints. One of the current barriers to widespread use of FSW is that the process generally requires the use of clamping systems that are often cumberso ...

The proposed research will explore innovative flight control methodologies combining recent advances in system identification, novel flight sensors, and neural network based adaptive flight control design to develop a new, high bandwidth flight controller architecture capable of rejecting the disturbing effects of wind gusts and turbulence. The proposed controller architecture will be most appropr ...

Navy ships use of gas turbine engines for both main propulsion and electrical power generation. With typical simple cycle thermal efficiencies of around 32-35%, a great deal of energy is lost as exhaust waste heat from the gas turbines. Clearly there is a need to develop systems that can recover as much as possible of this waste energy, and as stated in the program goal, achieve at least a 20% red ...

The demand for greater and safer energy storage for the wet and dry submersibles has pushed the limits of current battery technology. This energy demand is in response to the need for extended underwater mission operations and advances in electronic equipment needed for greater combat effectiveness. By replacing the existing battery with a fuel cell hybrid system, extended operation periods are po ...

The demand for greater and safer energy storage for the wet and dry submersibles and buoys has pushed the limits of current battery technology. This energy demand is in response to the need for extended mission operations and advances in electronic equipment needed for greater combat effectiveness. By replacing the existing battery with a fuel cell hybrid system, extended operation periods are pos ...

Develop a high power to weight, compact, heavy fuel MCC engine using advanced high strength materials. This new MCC engine design will also offer high durability and high efficiency with an extremely low acoustic and IR signature for use in future small UAVs. The overall objective of this Phase I development program is to develop a JP-5, JP-8 or DS2 MCC engine using advanced high strength to weigh ...

The overall objective of the Phase I and Phase II proposed effort is to design, test and demonstrate the ability of a 500 kW test bed prototype energy storage module to withstand a shipboard environment. The Phase I tradeoff design studies sized and identified a shock tolerant flywheel energy storage modular system configuration that will yield the desired power and energy densities while also hav ...