Abstract:Health professionals must often analyze disease cluster allegations made by concerned citizens who sense patterns within small structured environments. Examples include households, families, sibships, wards, cellblocks, classrooms, job types, age classes, and locations within a building. It is… more
Abstract:Three approaches -- a wake-integral procedure, a viscous theory of aerodynamics and an integro-differential method for Navier-Stokes flows -- will be fully developed and consolidated to create a new technology for studies of aerodynamic drag associated with unsteady flows. These new approaches deal… more
Abstract:WE HAVE BEEN DEVELOPING A NEW MEANS TO ELECTRICALLY STUDY ANIMAL CELLS GROWN IN TISSUE CULTURE AND INTEND TO MAKE A COMMERCIAL DEVICE SUITABLE FOR USE IN THE MEDICAL/BIOLOGICAL RESEACH AND TESTING MARKET. THE INSTRUMENTAL METHOD, REFERRED TO AS ECIS (ELECTRIC CELL-SUBSTRATE IMPEDANCE SENSOR), IS A… more
Abstract:There is a global trend towards utilization of satellite communications for information services. Equivalent system temperature, Ts, is a significant parameter in quantifying the antenna system/link performance, because it represents the noise power spectral density in antenna system… more
Abstract:A new Navy process substitutes low toxicity trivalent chromium for toxic hexavalent chromium in aluminum conversion coatings. Further work is needed to investigate variations on the original formulations, with special consideration to formulas useful with common alloys of aluminum. Both a yellow and… more
Abstract:The adaptive single user receiver invented at AF LAB has been shown to suppress multiuser and certain forms of narrow-band interference in adecision directed mode during the entire transmission, without requiring knowledge of other users spreading codes, timing or phase information in… more
Abstract:This project will develop a chip package that can be tailored to match the thermal coefficient of expansion (TCE) of semiconductor chips and has an order of magnitude higher thermal conductivity than conventional ceramic packaging materials. The Phase I project will focus on selection and… more
Abstract:As neural networks are scaled up in size and complexity, network communication becomes more and more a central issue in system architecture. This is especially true for neuromorphic analog VLSI implementation that seek to mimic detailed biology in real time and in very high speed digital… more
Abstract:Recent trends in the closure of military installations, requirements for the demilitarization and disposal of energetic materials and munitions, and environmental remediation obligations have produced a corresponding requirement for efficient processes which can detect the presence of energetic or… more
Abstract:The design of vertically firing gun is merely a simplified version of a normal large caliber gun system. The fixed orientation of the weapon simplifies the ammunition feed and loading system as well as eliminating the need for an equilibration The challenges of the current proposed system are… more
Abstract:Continuing efforts to develop useful and safe means of treating unserviceable, damaged or unused munitions and ordnance include the use of Open Burning/Open Detonation (OB?OD) technique. Although OB/OD techniques provide many advantages over other demil/disposal processes, increasing regulatory… more
Applied Physics Technologies Corporation
Improvements over existing scintillators, in light output, gamma ray detection efficiency, and fast decay times for their scintillation light, has been of interest to the nuclear physics, high energy physics, nuclear medicine (especially PET) and… more
Abstract:The present proposal describes a novel version of a pulsed, high power plasma-ion beam generator which can be used for material surface preparation, modification and synthesis. Interactio of the high power, pulsed plasma-ion flow with the material surface provides surface preparation, fast melting… more
Abstract:Investigation of failed composite components requires tress analysis to assess their structural integrity. Currently there exist no general-purpose software packages for composite structural analysis that are accessible to failure investigators who are not experts in these types of analysis. The… more
Abstract:Current utilization of composite materials in air and surface weapons systems and structures is extensive, and the use of these materials can be expected to increase in the future. Weapons effectiveness assessments and the design of protective structures require methodologies to predict the… more
Abstract:This project will analyze and select promising materials and designs to be used in the plumes of tactical solid rocket motors for missile steering and control. The emphasis is on high-performance refractory materials and compatibility of material systems. The control fins experience severe thermal… more
Abstract:This Phase I SBIR will develop a general purpose probabilistic finite element analysis system, ProFEA, that allows designers to perform probabilistic finite element analysis in a graphical environment that is completely familiar and similar to modern deterministic FEA. We have developed an… more
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