Award Data

The overall objective of the proposed work is to demonstrate electrically pumped, high-efficiency and long-lifetime, near-UV, solid-state laser diodes (LDs) based on AlGaN MQWs grown on native, single crystalline GaN substrates. The targeted laser diodes will emit between 330 - 350 nm with an emission power exceeding 1 W. These lasers will find application in remote Raman spectroscopy applications ...

Both the Deep Skirt and Advanced Skirt System material used on Landing Craft Air Cushion (LCAC) experience significant wear during normal operations, which require expensive, time-consuming maintenance repairs. The US Navy is looking for innovative new material and manufacturing method for skirt systems to improve it durability and reduces Total Ownership Cost (TOC). Rubber skirts experience two m ...

Upgrades to the E-2D Advanced Hawkeye inadvertently resulted in higher acoustic loading at its propellers blade pass frequency (BPF). This frequency overlaps with vibrational modes of the standard fixed-wing aircrew helmet, the HGU-68/P. As a combined result, E-2D pilots are experiencing exceptionally large vibrational and acoustic (noise) loading, potentially compromising aircrew performance and ...

Navy vessels, along with other military, civil, and commercial equipment and structures, are routinely stripped by abrasive blasting in preparation for re-coating. Using existing nozzles, blasting generates continuous noise levels up to 145 dBA, and even with correctly worn double hearing protection, blasting operators are at risk of hearing damage. Noise induced hearing loss has become the most c ...

Hyperbaric and hypobaric environments are known to have profound effects on the physiology of animals and humans. These effects can limit mission capabilities or, in some cases, even be life threatening. In other cases, these environments can induce very beneficial, sometimes life saving health effects. Even though the health effects of hypo/hyperbaric exposure have been observed for many decades, ...

Indiana Microelectronics is proposing to conduct a feasibility study to two types of affordable, high speed, tunable notch filters in the X-Band and above. The first technology is based upon substrate integrated resonators tuned with solid state varactors. This type of filter technology is anticipated to produce a moderate quality factor while maintaining sub-microsecond tuning speeds. The second ...

The objective of this effort is to demonstrate the feasibility of a 40 kW UPS with at least 100ms of holdup time, integrated into a standard 19 inch rack mount enclosure with 4U (7 inch) height, and designed to meet electrical and mechanical/shock specifications required for naval shipboard application. Traditional UPS applications are typically not optimized for weight and volume, and utilize bul ...

Vadum will develop a cognitive radar threat characterization (CRTC) system that employs a learning framework and algorithms to detect and counter agile, adaptive threat radars. Capabilities developed will provide improvements to threat detection, identification, and intent estimation to augment the SLQ-32 SEWIP Block 2 Electronic Support (ES) capabilities. CRTC will focus on the challenges of shor ...

Scientific Solutions, Inc. (SSI), teamed with BAE Systems and Southall Environmental Associates, Inc. (SEA), proposes to investigate the feasibility of using commercially available active sonar to autonomously identify and track marine mammals from transiting SURTASS-LFA surface ships at ranges out to and beyond 2,000 yards. Active sonar has been proven effective to detect and track marine animals ...

Traumatic brain injury (TBI) is a growing issue on the modern battlefield as well as training facilities. The brain experiences damage, inflammation, and termination of cell functions when a patient has a TBI. Infection, usually accompanied by an increase in temperature, can exacerbate the after-effects. Studies have shown that cerebroprotection such as quickly cooling the brain can reduce long te ...