United States of America as represented by the Administrator of the National Aeronautics Patent applications |
Patent application number | Title | Published |
20130044385 | METHOD AND APPARATUS FOR IMAGE PLANE EXIT PUPIL CHARACTERIZATION - An aperture mask for image plane exit pupil characterization of an imaging system is disclosed. The aperture mask includes a substantially opaque sheet configured to block portions of a wavefront travelling through an optical path of the imaging system, the sheet includes a plurality of holes, wherein the holes are positioned relative to each other such that a hole-to-hole distance generates a unique spatial frequency signature in the imaging system's point spread function. | 02-21-2013 |
20120023582 | SYSTEMS, METHODS, AND APPARATUS FOR OTOACOUSTIC PROTECTION OF AUTONOMIC SYSTEMS - Systems, methods and apparatus are provided through which in some embodiments an autonomic unit transmits an otoacoustic signal to counteract a potentially harmful incoming signal. | 01-26-2012 |
20120023052 | SYSTEMS, METHODS, AND APPARATUS FOR OTOACOUSTIC PROTECTION OF AUTONOMIC SYSTEMS - Systems, methods and apparatus are provided through which in some embodiments an autonomic unit transmits an otoacoustic signal to counteract a potentially harmful incoming signal. | 01-26-2012 |
20110209894 | Electrically Conductive Composite Material - A composite material formed of electrically conductive metalized carbon fibers, a thin metal coating or a composite material formed of a conductive polymer and metal nanoparticles. | 09-01-2011 |
20110117690 | Fabrication of Nanovoid-Imbedded Bismuth Telluride with low dimensional system - A new fabrication method for nanovoids-imbedded bismuth telluride (Bi—Te) material with low dimensional (quantum-dots, quantum-wires, or quantum-wells) structure was conceived during the development of advanced thermoelectric (TE) materials. Bismuth telluride is currently the best-known candidate material for solid-state TE cooling devices because it possesses the highest TE figure of merit at room temperature. The innovative process described here allows nanometer-scale voids to be incorporated in Bi—Te material. The final nanovoid structure such as void size, size distribution, void location, etc. can be also controlled under various process conditions. | 05-19-2011 |
20110070793 | Metal/Fiber Laminate and Fabrication Using a Porous Metal/Fiber Preform - A metal/fiber laminate has a plurality of adjacent layers. Each layer is porous and includes an arrangement of fibers. At least one of the layers has its fibers coated with a metal. A polymer matrix permeates each such arrangement. | 03-24-2011 |
20080286473 | Ice Adhesion Mitigation - Hydrophobic coating compositions containing siloxanes and fluoropolymer resin hinder the accumulation of moisture and reduce the adhesion of ice formed on the coating. Applications of such coating compositions to surfaces thus reduce the propensity for ice formation on a treated surface, and ease the dislodging of any ice formed on the treated surface. | 11-20-2008 |
20080234463 | Self-Healing Wire Insulation - A self-healing system for an insulation material initiates a self-repair process by rupturing a plurality of microcapsules disposed on the insulation material. When the plurality of microcapsules are ruptured, reactants within the plurality of microcapsules react to form a replacement polymer in a break of the insulation material. This self-healing system has the ability to repair multiple breaks in a length of insulation material without exhausting the repair properties of the material. | 09-25-2008 |
20080202199 | Positioning System For Single Or Multi-Axis Sensitive Instrument Calibration And Calibration System For Use Therewith - A positioning and calibration system are provided for use in calibrating a single or multi axis sensitive instrument, such as an inclinometer. The positioning system includes a positioner that defines six planes of tangential contact. A mounting region within the six planes is adapted to have an inclinometer coupled thereto. The positioning system also includes means for defining first and second flat surfaces that are approximately perpendicular to one another with the first surface adapted to be oriented relative to a local or induced reference field of interest to the instrument being calibrated, such as a gravitational vector. The positioner is positioned such that one of its six planes tangentially rests on the first flat surface and another of its six planes tangentially contacts the second flat surface. A calibration system is formed when the positioning system is used with a data collector and processor. | 08-28-2008 |