Abstract:Tunable HF/VHF filters capable of operating at high power levels are needed for preventing a jammer from interfering with nearby friendly communications, high-speed antenna tuners, and output filters for high-efficiency power amplifiers (PAS). Filter systems presently employ either relays or… more
Abstract:Infection of plant roots by zoosporic pathogens in hydroponic vegetable culture is a recognizedmajor problem in the industry, reducing production and limiting growth of the industry.Hydroponic nutrient solutions provide ideal conditions for the rapid spread of zoosporicpathogens - continuously moist… more
Abstract:The ability to store and analyze a continuous sequence of high resolution images of a ballistic event has tremendous benefits in determining the ballistic limits for laminated carbon fiber materials. When the ability to store these images in a 3-D format is introduced, the volume of data that can… more
Rapid Tools for Joint Inversion and Imaging--Subterranean Research, Inc., P.O. Box 1121, Burlington, VT 05402-1121; (802) 658-8878
Dr. Donna M. Rizzo, Principal Investigator
Dr. David E. Dougherty, Business Official
DOE Grant No. DE-FG02-97ER82485
Numerous types of data are… more
Abstract:Turboshaft engines are subject to various transient modes, necessitating a compressor with very high surge margin. Therefore, many devices were proposed in the past, and some of them including a recent one with a vaneless cavity by Allied Signal Engines, demonstrated impressive surge margin… more
Abstract:The ability to reduce total coolant flows to meet increased cooling and life requirements in gas turbines is crucial to improving future aircraft propulsion capability. Existing compressor core cooling (CCC) techniques concentrate on rotor and casing thermal deflection matching during… more
Abstract:The ultimate Virtual Environment system must free the user of const raining hardwire connections to the host computer or telepresence sensors. In addition to wirelessness, the headset must be unobtrusive and deliver a high quality image. We propose a research methodology and development… more
Abstract:The Stable Master Oscillator (STAMO) which is insensitive to shock and vibration utilizes a unique optical resonator. The resonator cavity is not affected by the jitter of the associated electronics or temperature variations. The concept utilizes off-the-shelf, high reliability components readily… more
Abstract:Delays in language acquisition are the most prevalent developmental problem in preschool children.acquisition of verbs poses a special challenge for children with language problems; perhaps this isendowed with syntactic and semantic information and play a central role in the development of grammaWe… more
Abstract:The ability to store digital, high resolution images at high speeds (10 kHz and higher) has tremendous commercial applications. To meet this need North Dancer Labs proposes to develop a unique high-speed Erasable Holographic Optical Storage system (E-HOS) capable of recording ~100 or more 2-D… more
Abstract:Phase I of this SBIR proposal will study the feasibility of ECHO housing accompanied with Home Health Care insurance, as a revenue-generating opportunity for rural communities. The proposed objectives are summarized as follows: 1. To perform three needs assessments in the state of Vermont of… more
Abstract:The goals of the Phase I research period are to construct and test new amperometric biosensors for the determination of several serum enzymes, alanine aminotransferase (ALT), aspartate aminotransferase (AST), and gamma-glutamyltransferase (GGT), which are frequently associated with alcohol-related… more
Abstract:The objective of this proposal is to develop a lithium ion-selective electrode, primarily for application to the clinical determination of lithium in patients undergoing therapy for manic depression. The lithium electrodes currently available are not sufficiently selective for lithium relative to… more
Abstract:The cost and limited lifespan of strain gages for stress and vibration surveys has driven researchers to find alternate means of investigating airfoil stress and vibration. Systems based on optical sensors have been reported in the literature since the mid 1960's. These systems have been limited… more
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