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Distributed Propulsion Concepts and Superparamagnetic Energy Harvesting Hummingbird Engine
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Wet Active Chevron Nozzle for Controllable Jet Noise Reduction
Magnetic Relief Valve
Locking Mechanism for a Flexible Composite Hinge
Active Aircraft Pylon Noise Control System
Unmanned Aerial Systems Traffic Management
Method of Bonding Dissimilar Materials
Sonar Inspection Robot System
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Current Attractions

Objet Geometries, Billerica, MA, has introduced the Connex500™ multi-material 3D printer based on the company's PolyJet Matrix™ technology, which provides simultaneous jetting of multiple model materials. The system, which was named NASA Tech Briefs' Product of the Month for January, enables the printing of parts and assemblies made of multiple materials in a single build, and fabricates Digital Materials™ on the fly, enabling the creation of composite materials that have preset combinations of mechanical properties. It produces prototypes of products that use over-molding in the manufacturing process, and fabricates translucent models that aid in medical applications by showing nerves, tumors, and other areas of interest.

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Techs of the Week

An improved ASIC (Application Specific Integrated Circuit) for industrial proximity sensor applications provides ease of programmability, embedded trimming capability, and dual slope temperature compensation. This ASIC design enables inductive proximity sensor/switches to be easily programmed after full assembly in production or at the customer's location. Frequency-independent temperature compensation, along with a quenching oscillator, produces sensing distances as much as three times longer than competing technology. Sensors utilizing this ASIC contain fewer electronic variants -- resulting in fewer parts, less inventory, and higher reliability. Click here for more info.

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Organic Transistors



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Technology Business Briefs

US Patents for Sale High-Speed Technique for Noise Reduction, Compression & Pattern Recognition. Three issued US patents for sale. Click here for more info. Digital Video Encoding and Transmission System. Two issued US patents for sale. Click here for more info.

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Gas Sensor



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Tech Needs of the Week

A company is looking for technologies to prevent garbage bags from falling into garbage cans during usage. The technology should be economical and appropriate for a low-cost, high-volume consumer product. Possible approaches include adhesives that do not leave behind residue, electrostatic approaches, frames at the top of the bag, memory materials, biomimetic approaches, or mechanical approaches. Technology should be safe for human contact and use and have an operating temperature range of 0 - 125 degrees F. Click here for more info.

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Swollen Solution



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