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Self-Healing Wire Insulation
Thermomechanical Methodology for Stabilizing Shape Memory Alloy (SMA) Response
Space Optical Communications Using Laser Beams
High Field Superconducting Magnets
Active Response Gravity Offload and Method
Strat-X
Sonar Inspection Robot System
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Neo-Geography Toolkit (NGT) v2

Ames Research Center, Moffett Field, California The Neo-Geography Toolkit (NGT) is a collection of open-source software tools for the automated processing of geospatial data, including images and maps. It can process raw raster data from remote sensing instruments and transform it into useful cartographic products such as visible image base maps, topographic models, etc. It can also perform data processing on extremely large geospatial data sets (up to several tens of terabytes) via parallel processing pipelines. Finally, it can transform raw metadata, vector data, and geo-tagged datasets into standard Neo-Geography data formats such as KML.

Posted in: Briefs, Data Acquisition

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Real-Time, In-Situ Determination and Monitoring of Hot- and Cold-Side Thermal Resistances in Thermoelectric Systems

Applications for this method using the current perturbation approach include automobile exhaust energy recovery and industrial process waste energy recovery systems. Thermoelectric (TE) energy recovery is an important technology for recovering waste thermal energy in high-temperature industrial, transportation, and military energy systems. TE power systems in these applications require high-performance hot-side and cold-side heat transfer to provide the critical temperature differential and transfer the required thermal energy to create the power output. Hot- and cold-side heat transfer performance is typically characterized by hot-side and cold-side thermal resistances, Rh,th and Rc,th, respectively. This heat transfer performance determines the hot-side temperature, Th, and cold-side temperature, Tc, conditions when operating in energy recovery environments with available temperature differentials characterized by an external driving temperature, Text, and ambient temperature, Tamb.

Posted in: Briefs, TSP, Data Acquisition, Sensors

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Physical Characterization of Radiated and Non-Radiated Materials to Temperatures Less than 50 K

Coefficient of thermal expansion and Young’s modulus of the materials are determined via custom analytical equipment that can allow temperatures down to 20 K. NASA’s Jet Propulsion Laboratory, Pasadena, California Solar-array panels will experience very low temperatures of 50 K for the proposed Europa Clipper Mission (ECM). Solar-array panels will also undergo thermal cycling from 50 K to 133 K during the mission due to Jovian eclipsing. Unfortunately, there was no knowledge of the physical properties of the materials planned to be used down to ≈50 K, making it difficult to assess their reliability under such extreme cryogenic temperature conditions.

Posted in: Briefs, TSP, Data Acquisition, Data Acquisition, Sensors

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Worldview Satellite Imagery Browsing and Downloading Tool

Goddard Space Flight Center, Greenbelt, Maryland Worldview is a software tool designed for interactively browsing and downloading imagery from NASA’s Earth observing satellites. Building upon a set of open source mapping and user interface libraries, it provides an environment to visually discover interesting phenomena as observed by NASA satellites, then download the data for further analysis. It was originally designed to address the needs of the near-real-time applications community to provide relevant information for time-critical scenarios such as wildfire and flood management. As such, satellite imagery is available to be viewed in Worldview within four hours of observation; the imagery can be viewed in its highest, or native, resolution, and the imagery can be panned and zoomed rapidly through space and time to find the most relevant/cloud-free information available.

Posted in: Briefs, TSP, Data Acquisition

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Method and Device for Biometric Subject Verification and Identification

This technique can be used by homeland security personnel, in airports, and by law enforcement for identity verification. Ames Research Center, Moffett Field, California This invention allows the verification and identification of a person based on features extracted from one or more electrocardiographic leads or channels. For identification purposes, the invention can be used to identify a subject from a group of known subjects. For verification purposes, the invention can be used to allow access to secured facilities or remote services over the Internet to allow access to or control of computers, cars, airplanes, ships, and submarines; to enable/disable electronic alarms; to open safes or security deposits; and to enable guns and special weapons that require restricted access.

Posted in: Briefs, Data Acquisition

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SMAP Radiometer Instrument Science Signal and Data Processing Software (SPS)

Goddard Space Flight Center, Greenbelt, Maryland This technology was developed for the Soil Moisture Active Passive (SMAP) mission and for the IRAD-FY13 Technology for Radiometer RFI Noise Detection & Mitigation Based on HHT2. Spacecraft beyond the present state-of-the-art passive radiometry will make use of natural thermal emissions to remotely sense Earth phenomena of interest to science (soil moisture, for example) in the technologically challenging microwave L-band. In this 1.4-GHz band (used by SMAP), a terrestrial source thermal signal emission to space suffers less attenuation by the intervening atmosphere. Unfortunately, the relative insensitivity of the L-band region to atmospheric effects also makes it an extremely attractive spectral range for wireless communications and radars that are causing radio frequency interference (RFI) with the spaceflight science radiometer instruments’ terrestrial phenomenon signal of interest, even as this band is protected by radio-communication regulations. Detection and excision or mitigation of the RFI-contaminated measurements is a challenge to the state of the art.

Posted in: Briefs, TSP, Data Acquisition

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Advanced Methodology for Precisely Simulating RTD Sensor Types

This technology has applications in plant process simulation, hardware-in-the loop testing of electronic control units in automobiles and avionics, and spacecraft and satellite systems testing. VTI Instruments Corporation, Irvine, California Resistance thermometers, also called resistance temperature detectors (RTDs), are very common sensors used for temperature measurement. Their reliability, ruggedness, wide range, and value make them popular in the process industry and research laboratories alike. A wide range of instruments, PLC I/O systems, data acquisition, and control systems are designed to interface with these sensors and perform actions based on their measured value. Testing of such systems requires a sensor to be simulated, where hardware-in-the-loop testing is mandatory. Often the validation of such systems will end up being a complex issue if not properly planned.

Posted in: Briefs, Data Acquisition, Sensors

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