Software Suite for Identifying Suspicious Individuals

It can be very useful to know about activities among individuals; for example, which individuals are associated with other individuals? When two or more individuals get together, is there an intended purpose? Who are the leaders or important individuals of a group? What is the organizational structure of the group? It can prove useful to have the capability to actually model the above types of interactions and associations. To an extent, this type of social research has been addressed by employing the disciplines of data mining and community generation.

Posted in: Briefs, Software, Big data, Computer software / hardware, Computer software and hardware, Security systems, Big data, Computer software / hardware, Computer software and hardware, Security systems, Identification
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Inflatable Airlock Technologies

This technology can be used for tents, bags, barometric chambers, or wherever environmental barriers are needed.

An airlock used in space can provide the ability to leave a pressurized volume and enter free space. This is necessary to perform maintenance or make repairs to the pressurized volume or visiting spacecraft, construct or repair structures or devices, tend in-space experiments, etc. The airlock is used to provide the transition between internal pressurized volume, i.e. a shirtsleeve environment, and space. Current state-of-the-art units on the Space Station are rigid systems consisting of massive pressure vessels, hatches, and seals. Past efforts have investigated fabric-based ways of forming the airlock pressure volume, but all have used a more traditional metallic or composite door or hatch, which are heavy and difficult to package into a small volume. The need exists for an airlock, pressure vessel, and opening that are lightweight and can be packaged efficiently.

Posted in: Briefs, Mechanical Components, Research and development, Fabrics, Gases, Spacecraft
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Nanowire “Inks” for Paper-Based Printable Electronics

Highly conductive films make functional circuits without adding high heat.

Printed electronics must be heated to melt all the nanoparticles together into a single conductive wire, making it impossible to print circuits on inexpensive plastics or paper. A study shows that tweaking the shape of the nanoparticles in the ink could eliminate the need for heat.

Posted in: Briefs, Electronics & Computers, Electronic equipment, Electronic equipment, Additive manufacturing, Conductivity
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Portable Kit Recovers Traces of Chemical Evidence

This measurement kit can recover trace chemicals such as environmental pollutants, and forensic evidence such as arson fire debris.

An arson investigation typically requires collecting one or two liters of ashes and debris from various locations within a fire scene in metal cans similar to those used for paint, and sending the material to a lab. The testing methods typically include gas and liquid chromatography or various versions of spectroscopy, with gas chromatography being the most widely used in fire debris analysis. When the fire debris is received at the testing facility, samples are taken for testing. Sometimes this will involve suspending a strip with activated charcoal in the air or “headspace” directly above the sample in the metal can for a period of time that can vary, depending on the judgment of the analyst, for 2-3 hours or up to 16 hours.

Posted in: Briefs, Test & Measurement, Spectroscopy, Spectroscopy, Particulate matter (PM), Fire fighting, Test equipment and instrumentation
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Optimized Route Finding for Air and Ground Vehicles

This software provides near-real-time potential, and offers collision and adverse weather avoidance.

The Automated Impacts Routing (AIR) software is advanced route finding technology for air and ground vehicles. The software provides users the ability to find optimized paths through airspace or ground space, taking into consideration multiple and dynamic adverse conditions that can determine mission success or failure.

Posted in: Briefs, Software, Computer software / hardware, Computer software and hardware, Flight guidance systems, Global positioning systems, Global positioning systems (GPS), Computer software / hardware, Computer software and hardware, Flight guidance systems, Global positioning systems, Global positioning systems (GPS), Collision avoidance systems
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Automated Transfer Function Generator

When designing or analyzing electrical systems, it is important to understand the relationship between input and output. Power conversion occurs in a “black box,” and transfer functions can be used to provide a better understanding of the processes occurring in this black box. Although they provide a useful analysis tool, transfer functions are not often utilized because they require complicated, time-consuming derivation that ignores nonlinear behavior common in real-world systems.

Posted in: Briefs, Software, Computer software / hardware, Computer software and hardware, Electrical systems, Computer software / hardware, Computer software and hardware, Electrical systems
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Ultralight, Scalable, High-Temperature-Resilient Ceramic Nanofiber Sponges

These sponges can be used for flexible insulation and water purification.

Researchers have made ultralight, highly porous, compressible, and heat-resistant sponge-like materials from nanoscale ceramic fibers. The highly deformable material is made by tangling ceramic nanofibers into a sponge. The method used is inexpensive and scalable for making large quantities.

Posted in: Briefs, Materials, Ceramics, Heat resistant materials, Lightweight materials, Nanomaterials
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Overspeed Protection for Turbine Flowmeters in Cryogenic Applications

Flowmeters for cryogenic applications often fail in service. Turbine flowmeters in particular fail due to very high speeds encountered during chill-down operations. Very cold, very high-velocity gas causes the turbine to spin uncontrollably, which quickly degrades bearings. Those flowmeters that do not fail are often unreliable, degrading their effectiveness as instrumentation to monitor and control cryogenic propellant loading.

Posted in: Briefs, Test & Measurement, Gases, Magnetic materials, Bearings, Gas turbines
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Electrically Conducting Nanoscale Sheets for Reconfigurable Electronics

Almost all aspects of modern life, such as communications and healthcare, depend on microelectronic devices. The demand for more powerful, smaller technology keeps growing, meaning that the tiniest devices are now composed of just a few atoms. One way to solve the problem of making electronic circuits smaller is to make them more flexible so they can serve one purpose and then be completely reconfigured for another purpose.

Posted in: Briefs, Electronics & Computers
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Wireless Ultrasonic Inspection Propulsion System

During inspection of pressure vessels and other large structures, an industry-accepted fixture is used to hold the search unit a predetermined distance from the area of interest under inspection. This fixture is then moved manually around the area of interest so that data can be collected and stored for later analysis. The fixture usually is chosen based on price and versatility; automated propulsion is not an option. This results in lower-quality data, as well as a greater chance that an anomaly could be missed due to the erratic motion inherent with manual manipulation.

Posted in: Briefs, Propulsion, Wireless communication systems, Wireless communication systems, Inspections, Test procedures
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