Abstract:This Phase I project will develop an innovative signal processing and information processing concept for improved detection in acoustically noisy littoral waters using existing towed arrays or hull-mounted arrays. These relatively shallow waters have many sources of noise and interference which make… more
Abstract:This project develops FluentBuddy, a rehabilitation framework that utilizes innovative speech processing algorithms, as a platform to enable new cloud computing-based service delivery solutions for autonomous assessment, treatment, and management of communication disorders outside of a clinic. This… more
Abstract:DESCRIPTION (provided by applicant): Dramatic advances in the development of biomedical ontologies hold the promise of a deeper and clearer understanding of the molecular and genetic aspects that affect human health. Biomedical data and knowledge stored in ontologies and databases have the… more
Abstract:The proposed work seeks to clearly demonstrate the advantage of the multiple-input multiple-output (MIMO) radar architecture over a similar single-input multiple-output (SIMO) or phased array system; the benefit of applying data-adaptive signal processing techniques in favor of their… more
Abstract:DESCRIPTION (provided by applicant): This project aims to develop a device capable of acquiring transient and steady state auditory evoked potenlatials (AEPs) simultaneously using an efficient and advanced processing technique. The proposed technique willbe implemented as a software module on… more
Abstract:Current multi-touch pressure sensitive Commercial Off The Shelf (COTS) hardware and software (e.g., Apple iPhones, Android Phones, etc.) allow users to seamlessly interact with software applications using gestures, but underutilize their potential by only employing a limited set of Human Computer… more
Abstract:Metallic Direct Digital Manufacturing (MDDM), is based on layer-by-layer metal deposition and has been developed to a sufficient state of manufacturing readiness where production applications have emerged in niche industrial sectors. DDM processes in general require the use of raw materials that are… more
Abstract:Thermal Stir Welding (TSW) provides advancement over the more conventional Friction Stir Welding (C-FSW) process because it separates the primary processes variables thereby allowing independent control of metal stirring and forging from the stir zone temperature. However, the feedback for precise… more
Abstract:ABSTRACT: The purpose of this proposal is to develop a new photosensitive optical material with working range from 3 to 5 um, which enables recording of high efficiency volume holograms with tolerance to high power laser radiation, and to demonstrate the use of those holograms for beam control of… more
Abstract:With the advent of pulse energy weapons, the transient characteristics of military aircraft power systems is changing. These new loads require power supplies that shield the pulse transient from the electrical distribution system, while also being highly efficient, power dense, and reliable.… more
Abstract:As shipboard control electronics continue to evolve, electronic systems inevitably incur hardware changes. However, these system changes often require sound recertification of the electronics enclosure, which can be a very costly and time-consuming process. Therefore, it is desirable to build a… more
Abstract:The U.S. economy and the American way of life rely heavily on transportation by cars and trucks. This transportation is dependent almost entirely on oil, which creates vulnerability to supply chain disruptions, potential for fuel price shocks, and exposure to emissions of air pollutants. Reducing… more
Abstract:Automotive manufacturers have investigated many technologies to achieve ever-increasing, federally- mandated fuel consumption requirements. However, alternative approaches must be considered to meet the upcoming efficiency demands. Differential compression/expansion ratio (DCE) engines have been… more
Abstract:The U.S. Department of Energy is currently seeking technologies that can significantly decrease the cost of solar hot water heating systems. Mainstream Engineering Corporation is proposing to develop a low- cost, highly efficient solar collector that will significantly reduce the installed cost of… more
Abstract:ABSTRACT: Experimental testing of dynamic models has been performed for more than 50 years and a wealth of data exists for individual models. However, this data is often either restricted as proprietary or is not suitable for CSE tool validation as a result of incomplete model or test information. … more
Abstract:Autonomous inspection systems are necessary to increase awareness of track safety and maintenance issues. However, electrical power for these systems is not available under freight railway vehicles. Mainstream Engineering (MEC)
proposes development of a small-scale diesel generator with an… more
Abstract:In Phase I, Mainstream Engineering demonstrated that a high concentration liquid-fed fuel cell system would significantly exceed the energy density of existing military batteries. In this proposal, we describe our Low Temperature Extended Lifetime Fuel Cell (LoTEL-FC) hybrid power system for… more
Abstract:ABSTRACT: A new generation of supersonic weapons will operate at Mach 3-6. Current infrared window materials are unable to withstand the heat generated and temperatures associated with hypersonic flight. In Phase I, Mainstream developed an advanced cooling technology capable of reducing the… more
Abstract:Naval ships currently operate independent 60 Hz and 400 Hz power systems, resulting in unnecessary redundancy and high ship costs. A better approach is to utilize existing 60 Hz equipment and place the 400 Hz equipment at the load site. However, limitations in current electronic power densities make… more
Abstract:ABSTRACT: This proposal outlines a scalable, low-cost procedure for fabrication of hierarchical hybrid nanomaterials that produce ultra-high pressure tolerance and surface area vessels. These vessels enable physical storage of hydrogen through compression and adsorption at densities predicted to… more
Abstract:ABSTRACT: The objective of this SBIR topic is to develop a hybrid electric propulsion system to support a Rapid Response Small SUAS (<30lb) capability. This requires fast dash (>150mph) while maintaining extended endurance (>15 hrs) on station and low acoustic noise operation. Full… more
Abstract:This proposal addresses the single largest consumer of ground-based power at forward operating bases and conservatively results in annual fuel savings greater than $260 million. U.S. forces currently consume about 300,000 barrels of petroleum-based fuels per day. During wartime OPTEMPO, generators… more
Abstract:The largest non-propulsion consumer of Navy shipboard power is HVAC. Up to 87% of cooling loads are generated by equipment that is currently cooled with 80°F air that is produced by a 40°F chilled water supply. Shipboard chiller efficiency can be increased by introducing an intermediate sink water… more
Abstract:ABSTRACT: The demand for increased thrust from gas turbine engines, while simultaneously reducing engine size and weight, has lead to real challenges for the design of robust augmentors and interturbine burners (ITBs). Reactive flow simulations of augmentors and ITBs can be used to speed the design… more
Abstract:DESCRIPTION: An estimated 2.5 billion people, or about one-third of the world's population, rely on biomass fuel for cooking. Emissions from biomass cook stoves contribute to global climate change, indoor/local air quality issues, and related health effects. In particular, indoor ir quality… more
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