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  • 1
    Publication Date: 2019-07-27
    Description: CRASTE poster on TPS Development at NASA ARC.
    Keywords: Composite Materials
    Type: ARC-E-DAA-TN2373 , CRASTE - Commercial and Government Responsive Access to Space Technology Exchange; 25-28 Oc. 2010; Moffett Field, CA; United States
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  • 2
    Publication Date: 2019-07-13
    Description: Phenolic Impregnated Carbon Ablator (PICA) is a member of the family of Lightweight Ceramic Ablators (LCAs) and was developed at NASA Ames Research Center as a thermal protection system (TPS) material for the Stardust mission probe that entered the Earth s atmosphere faster than any other probe or vehicle to date. PICA, carbon fiberform base and phenolic polymer, shows excellent thermal insulative properties at heating rates from about 250 W/sq cm to 1000 W/sq cm. The density of standard PICA - 0.26 g/cu cm to 0.28 g/cu cm - can be changed by changing the concentration of the phenolic resin. By adding polymers to the phenolic resin before curing it is possible to significantly improve the mechanical properties of PICA without significantly increasing the density.
    Keywords: Composite Materials
    Type: ARC-E-DAA-TN3674 , National Space and Missile Materials Symposium; Jun 27, 2011 - Jun 30, 2011; Madison, WI; United States
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  • 3
    Publication Date: 2019-07-12
    Description: Dendrimeric reporter compounds have been invented for use in sensing and amplifying electrochemical signals from molecular recognition events that involve many chemical and biological entities. These reporter compounds can be formulated to target specific molecules or molecular recognition events. They can also be formulated to be, variously, hydrophilic or amphiphilic so that they are suitable for use at interfaces between (1) aqueous solutions and (2) electrodes connected to external signal-processing electronic circuits. The invention of these reporter compounds is expected to enable the development of highly miniaturized, low-power-consumption, relatively inexpensive, mass-producible sensor units for diverse applications.
    Keywords: Inorganic, Organic and Physical Chemistry
    Type: ARC-14908-1 , NASA Tech Briefs, December 2004; 14-15
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  • 4
    Publication Date: 2019-07-12
    Description: Devices, methods, and kits for amplifying the signal from hybridization reactions between nucleic acid probes and their cognate targets are presented. The devices provide partially-duplexed, immobilized probe complexes, spatially separate from and separately addressable from immobilized docking strands. Cognate target acts catalytically to transfer probe from the site of probe complex immobilization to the site of immobilized docking strand, generating a detectable signal. The methods and kits of the present invention may be used to identify the presence of cognate target in a fluid sample.
    Keywords: Life Sciences (General)
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