Award Data

To improve performance of Army CFD codes on new HPC architectures using MIC co-processors, we propose the RIVULETS tool which uses hybrid algorithms and automatic tuning to decrease CFD run-time and improve numerical performance. Existing CFD codes are parallelized using MPI, a highly effective approach for distributed architectures with large quantities of system memory and relatively simple seri ...

ABSTRACT: SIFT's Phase 2 Hy-CIRCA proposal builds on progress in Phase 1 to address the challenge of effectively, reliably, and safely tasking cooperating teams of autonomous cyber-physical systems (CPSs). SIFT's Playbook(tm) interface approach provides high-level, goal-based tasking for multi-agent autonomous missions. SIFT's Cooperative Intelligent Real-Time Control Architecture (CIRCA) automa ...

We propose CADET (Cognitive Assessment During Evaluation and Testing), a flexible and minimally intru-sive machine learning enabled software sensor that classifies environmental, human behavior, and physiolog-ical features to measure and predict near real time workload (WL) and performance. We will combine SIFT's prior WL research in zero-intrusion techniques in linguistics, keyboard dynamics and ...

Future DoD and Navy missions require advances in current high voltage power electronics technology as existing technology and even recent promising advances in Silicon Carbide and Gallium Nitride based materials lack fundamental material properties to deliver switching capabilities needed for future high power converter applications, advanced radar and propulsion systems. Much interest has been re ...

According to a 2014 study commissioned by the Department of Energy, hydropower from more than 3 million untapped streams in the United States could potentially generate 65 gigawatts of electricity and help to reduce greenhouse emissions and pollution. However, the development of hydropower has been limited by several obstacles, as described by the United States Geological Survey: most of the prime ...

Supercritical CO2 cycles have the potential to significantly improve efficiency and reduce emissions in power generation. However, the unique fluid dynamic properties of supercritical CO2 that enable these higher efficiencies also complicate the design and layout of the system, particularly its turbomachinery components. The problem stems specifically from the highly non-linear properties of CO2, ...

The ages of men have been defined by the materials that make up the tools we use, from the ancient stone and iron ages to the modern nuclear and silicon ages. Over these ages, man’s knowledge has been built upon previous observations. The base of this materials knowledge is understanding the relationships between structure- processing-properties-performance. The top of this pyramid is systematic ...

This proposal addresses a pressing need in the detector development community within experimental high energy physics (HEP). The HEP community has been involved in the development of highly segmented and miniaturized detection elements ever since silicon strip detectors were first invented in the late 1970s. Various experiments have employed silicon detectors in a variety of readout configurations ...

Letters from leading researchers of subsurface hydrobiogeochemical processes, including Department of Energy researchers, confirm the need for low-cost, rugged distributed temperature sensing. Temperature and thermal gradients are critical drivers and state variables in many important subsurface hydrobiogeochemical processes, as well as indicators of hydrologic phenomena. In addition to helping un ...

Low-cost and reliable plastic optical fibers (POFs) are rapidly gaining acceptance in advanced networking applications such as data center and building LAN wiring, video streaming for Internet-protocol television (IPTV), and for safety-critical functions from secure braking and suspension control in cars to flight control in avionics. Common polymers used to form the light medium in POFs show smal ...