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Second Generation (2G) High Temperature Superconducting (HTS) wire based on the YBCO coated conductor is being developed for new military and commercial applications not accessible to First Generation (1G) HTS wires. Although a critical current (Ic) of nearly 300A/cm-w (77K, sf) has been obtained in 10-meter lengths of 2G conductors, significant improvement in the Ic of practical conductors is re ...

Second Generation High Temperature Superconductor (2G) wire is providing new capabilities critical for various military applications. The enhanced flux pinning at 65K, the lower limit for liquid nitrogen cooling, is useful for achieving useful power densities at magnetic fields of 1-3 T. For the use of 2G wires for AC applications substantial modifications are required to the present 2G wire arch ...

A topology for a medium voltage to low voltage 3-phase power converter is proposed. It consists of a clean power rectifier followed by multiple isolated DC to DC converters using commercially available high frequency transformers with very low core losses when driven by a quasi-resonant inverter operating in the 20 to 50 kHz range. The DC to DC input DC busses are placed in series, while the out ...

Our Random Obfuscating Compiler2 (“ROC2”) automated toolset will protect DoD HPC executables running on Beowulf clusters from reverse engineering or compromise. Preliminary DoD HPC research is often conducted on university Beowulfs, which are also used by unscreened researchers and students. The US is engaged in an arms race and must protect valuable IP. A ROC2 toolset is feasible now. Phas ...

We propose to develop ROC2 to protect software from reverse engineering or compromise by automatically inserting strong Protect/Detect/React functionality into binaries by obfuscating executables, providing randomly different variants of the same binary, and permitting the software only to run on the target site, all without performance penalty or knowledge of source code. ROC2 extends the Random ...

78147S High-resolution tracking detectors based on silicon CCDs and Active Pixel Sensor (APS) arrays have been valuable tools in Nuclear Physics research, and have contributed to major discoveries. APS mega pixel arrays for fine granularity tracking have already demonstrated advantages over CCDs, such as optimized readout, reset, and digitization at pixel level. Nonetheless, their readout and dig ...

Assessment of communications in simulation based training suffers from (1) slow pace, (2) a reliance on communications data to the exclusion of behavioral and contextual data, (3) use of a single language model to handle multiple forms of language, and (4) failure to systematically address Mission Essential Competencies. We propose to build on our insights and success from Phase I to (1) develop ...

The Model-based Optimal System for Training (MOST) is an optimal Intelligent Team Tutoring System (ITTS) for training team and individual resource allocation skills. MOST will contain five models; (1) an optimal task performance model (expert model), (2) an optimal context model, (3) an optimal feedback model, (4) an optimal procedural training model, and (5) a student model. The optimal context, ...

Formal training for senior leadership positions in the USAF is uncommon. USAF leaders typically receive little training to perform at the operational level. Therefore, we propose to develop a tool that will supplement their on-the-job training and benefit a variety of leadership positions. During Phase II, we will develop a prototype trainer and effectiveness metrics for a single position, the Jo ...

Our Phase I effort demonstrated the potential for Complex Adaptive Systems theory (CAS) simulation modeling to help in strategy development regarding enemy's Courses of Action (COA). The Complex Adaptive System Strategy Interplay Environment (CASSIE) project discovered that numerical simulation models can be built to represent real-world complex systems using a variety of CAS modeling methodologi ...