Abstract:The current problem of handling thousands of workflows and hundreds of tasks associated with these workflows within the current ALP architecture is enormous. In this effort we propose efficient and scalable data structure and algorithms that can order the workflows and associated tasks to be… more
Abstract:We shall develop a dynamic agent web architecture and software prototype that builds on top of COTS database integration technology to deliver view management and data mining services.The data mining services shall consist of case based reasoning and association. We shall use case based reasoning… more
Abstract:Sucessful completion of Phase I efforts shall provide the Air Force with an intelligent dynamic data mining architecture and demonstration prototype. We shall develop the concept of a profile that shall be used as a basis for identification and linking of relationships based on a rough sketch or… more
Abstract:AcuSoft proposes to research and develop a Synthetic Environment RTI (SE-RTI). The SEDRIS initiative has established a new programming paradigm that provides lossless transmission of synthetic environment objects. The HLA has been designed to support interoperability and reuse of DoD simulations,… more
Abstract:AcuSoft proposes to research and develop a database conversion tool based on the Synthetic Environment Data Representation and Interchange Specification (SEDRIS) to maximize the reusability and interchangeability of existing and future USSOCOM database. In the proposed PHASE I effort, we will… more
Abstract:A unique approach is proposed for the effective rejection of cochannel, but otherwise arbitrary, jamming and other interference in GPS reception. The approach is based on a method of processing a multiplicity of signals sharing the same time-frequency and polarization space, in such a way as to… more
Abstract:Although technologies derived under the Integrated High Performance Turbine Engine Technology (IHPTET) initiative should result in higher performance of gas turbine engines, the durability of engine components continues to be one of the most important design issues which impacts their affordability… more
Abstract:Space structures and high-speed interceptor technology can be significantly enhanced if lighter weight composite structural materials that possess inherently high-strength damage-resistant properties can be developed on a cost-effective basis. A novel laminated sandwich composite concept is proposed… more
Abstract:This Phase I effort is to synthesize and develop material processing systems that possess the mechanical properties, and processing characteristic for use in flexible electronic and photonic devices. We will demonstrate the feasibility of fabricating in this effort to optimize the modulator/switch… more
Abstract:The stress analysis and fatigue life prediction of the bonded repaired damaged zone of the aircraft structure is a challenging problem for designers. The lack of accurate life prediction methodologies limit the utilization of composite materials to repair the damaged structure. It is proposed to… more
Abstract:The need for compact solid state ultraviolet light sources includes clinical light sources for a variety of surgeries, analytical instrumentation sources and communications systems based on shorter wavelengths that will be able to handle higher information densities. Such advanced optoelectric… more
Abstract:Integration of many different devices on a single silicon carbide (SiC) substrate is necessary to realize the full potential of high temperature or high power devices for markets ranging from industrial and consumer to military systems to transportation power and control. Integration … more
High Brightness LEDs based on the (Al, Ga,In)N Materials System--Advanced Technology Materials, Inc., 7 Commerce Drive, Danbury, CT 06810-4131;
Dr. Karim Boutros, Principal Investigator
Dr. Duncan W. Brown, Business Official
DOE Grant No. DE-FG02-97ER82319
Based on a… more
Abstract:The III-V nitrides, (Al, In, Ga)N, are promising materials for high temperature, high power and high frequency devices due to the wide bandgaps, high electron saturation velocity and high electronic mobility transistor (HEMT) structures available in this alloy system. These devices would find… more
Abstract:Commercially viable silicon carbide device manufacturing processes depend on an ability to grow'low defect density epitaxial layers. Low defect density epitaxial layers start with pristine SiC substrate surfaces. Epi-ready pristine SiC surfaces are not commercially available. The results of… more
Abstract:Next generation power electronic systems for military aircraft will require capacitors with reliable performance at temperatures from -55 up to 300 degrees C and beyond for filters, power converters and other control circuitry. Thin film integrated passive devices with lower dissipation and… more
Abstract:Silicon carbide (SiC) is an ideal semiconductor material for high temperature, high frequency, and high power electronic devices. A SiC technology analogous to silicon - on -insulator (SOI) will be feasible if a suitable dopant precursor and epitaxial growth technique to produce semi-insulating SiC… more
Abstract:Metal-ferroelectric-semiconductor field effect transistors (MFS-FETs) have a can be used as nonvolatile memory devices. The primary ferroelectric materials for these devices are perovskite oxides such as lead zirconium titanate (PZT) and strontium bismuth tantalate (SBT). These materials contain… more
Abstract:A major objective of the proposed work is to generate a preliminary design for a PCMCIA-based vibration data collection system that provides better portability, a higher level of standardization and greater cost-effectiveness than is currently The feasibility of a PCMCIA carbased vibration data… more
Abstract:During Phase I, we will develop the technology for a field use instrument to determine the residual stress, fatigue damage and remaining service life for aging metal structures. The technology will be based on a state-of -the-art wide-angle x-ray detector recently developed at ATMI. The life span… more
Abstract:GaN-based p-i-n photodiodes are in ideal choice for the Air Force's UV radiation measurements needs since these solid-state detectors are compact, light, and have low power consumption. However, current GaN photodiodes have much larger dark currents than expected. This Phase I program seeks to… more
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