Abstract:Due to the emerging threat of quiet diesel-electric submarines in the cluttered littoral environment, the Navy recognizes the need for an improved sensor system. Initial results from tests indicate that multistatic receivers used with high-power active sources can provide the enhanced performance… more
Abstract:A program is proposed to perform mission-adaptable, covert surveillance in various contested environments to localize vehicles and weapons fire. Development of a covert, air-deployable (UAV & A/C) sensor system capable of operating in diverse environments and coherently overlapping multiple types… more
Abstract:Composite structures for submarines require high strength and high fracture toughness to survive underwater shock blasts. These structures have historically been built using rubber-toughened epoxy pre-impregnated (pre-pregs) reinforcements. However, experience has shown that pre-pregs can be… more
Abstract:A thick SiC epitaxy process was demonstrated by SemiSouth in Phase I, as the growth (or deposition) rate was boosted from 5 um/h to 20 um/h, and thickness uniformity was kept to 5% or below. In the Phase 2 effort, it is proposed that the processes be developed for production by re-designing and… more
Abstract:Several new high-power, long range radar systems are under development for near-term upgrades or fielding by MDA, Navy, and Marine Corps, which will use High Voltage GaAs or new WBG Semiconductors (SiC, GaN) in the transmitter/receiver. These systems will require compact, efficient, temperature… more
Abstract:This proposal is aimed at demonstrating the feasibility of a Decentralized Control based SiC Parallel DC-DC Converter Unit (DDCU) with targeted application for NASA's International Space Station Program and Satellite Power Systems. The proposed DDCU has three key features: a) "true" redundancy for… more
Abstract:In the proposed development, SiC JFET control circuitry and normally-off SiC JFET power switch will be integrated in a single SiC chip that will provide digital output for driving piezoelectric, electrostatic, or electromagnetic actuators. Innovative device design, metallurgical ohmic contact and… more
Abstract:This Small Business Innovation Research (SBIR) Phase II project will build a scalable and reliable storage system for network storage environments. This outcome of this project is a revolutionary system that employs a combination of unique ideas to address the main challenges encountered in today's… more
Abstract:Satellites that record imagery of the same sea surface area, at times separated by a few hours, can be used to estimate ocean surface velocity fields based on the apparent motion of patterns observed in a pair of images. Human interactive, statistical, model inversion, and feature correspondence… more
Abstract:The work seeks to develop a low cost, and versatile method for providing radiation shielding to microelectronic and optical components. The technical approach utilizes metallized nanoscopic polyhedral oligomeric silsesquioxane building blocks to deliver high loadings of absorbing species as a… more
Abstract:This Small BusinessTechnology Transfer Research (STTR) Phase I project seeks to advance the fundamental knowledge base and performance of lead-free electronic solders. Current lead-free electronic solders are performance limited by their thermomechanical fatigue and electrical characteristics due to… more
Abstract:The state of affairs facing engineers and scientist attempting to treat low level contaminated water using current technologies results in the selection of a process that has significant shortcomings. A technically superior, yet operationally simpler treatment process within a reduced cost bracket… more
Abstract:DESCRIPTION: The overall goal of this project is to investigate the feasibility of a novel technology to produce an "Antifungal Denture Adhesive Film" (ADA) System that will minimize or eliminate the current shortcomings of oral mucosal treatment modalities for candidiasis in denture patients. A… more
Abstract:SSC needs the sensors that are capable and can be operated in liquid oxygen (LOX) and or liquid hydrogen (LH2) cryogenic environment to improve SSC cryogenic testing. In particular, the Stennis Space Center (SSC) would like to develop a sensor to monitor the quality of LOX in the delivery line… more
Abstract:The development of lighter weight insulation with improved thermal and ablative properties is vital to the future success of ducted rocket/ramjet technology currently being developed in the United States. In Phase I, novel composite ablative materials were fabricated from Parmaxr SRP… more
Abstract:Mississippi Polymer Technologies Inc. (MPT) proposes to develop a new generation of polymeric lightweight ammunition weighing approximately 1/3 less than existing brass ammunition. Previous efforts to develop polymer-cased ammunition have failed primarily because of problems associated with choice… more
Abstract:This Small Business Innovation Research (SBIR) Phase I project proposes to develop a new class of advanced polymeric dielectrics based on polyphenylene Self-Reinforced Polymers (SRPs). Polymers with superior electrical, thermal and mechanical performance are critical for a variety of advanced… more
Abstract:Mississippi Polymer Technologies (MPT) proposes to protect composite ship structures with novel, lightweight flame resistant insulation composed foamed Parmaxr Self-Reinforced Polymers ("SRPs") compounded with carbon fibers. Parmaxr SRPs are extraordinary thermoplastic polymers that do not melt or… more
Abstract:Large-scale engineering systems require very large real-time computation. The computers that effect on-line processing must be extremely reliable, because of the large cost of operating the facilities and because of the potential loss of data or inability to deliver critical functionality in… more
Abstract:This Small Business Technology Transfer Research (STTR) Phase I proposal proposes to develop a scalable, fault-tolerant and reliable message-passing interface. MPI-2 is a key technology for the next several years in enabling scalable parallel computing on massively parallel machines and Beowulf… more
Abstract:BasinTools is designed to facilitate the use of remotely sensed data by users who are not remote sensing specialist. Information from remotely sensed data would be used by a wide variety of engineers, planners, and scientist except they lack the expertise, sophisticated software, or high-end… more
Abstract:Z-axis stitching offers improved performance and greatly increased damage tolerance for composite to composite joints (CTC). Z-axis stitching is employed in aircraft applications using complex, double-sided stitch machinery developed by NASA. This technology is very expensive, but offers increased… more
Abstract:SemiSouth proposes to prototype proprietary self-aligned L-band SiC Static Induction Transistors, with 400 V gate-to-drain breakdown voltage, for radar transmitters. A minimum of 14 wafers will be processed, allowing for thousands of parts to be delivered to system integrators. Parts will be… more
Abstract:In this proposed work, methods to increase the growth rate for thick, low-doped drift region epilayers required for MW power switch devices are examined. Changing the process parameters (carrier and feed gas ratios, gas flow rates, pressure, temperature) to increase the growth rate are balanced… more
Abstract:In coordination with other ONR and MDA sponsored SiC MESFET development, SemiSouth proposes development of an improved, L or S-band designed SiC MESFET which focuses on a self-aligned process. This self-aligned process requires development of a high-uniformity gate recess etch and an improved,… more
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