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5 Ws: Defense
Who Manufacturers across medical, space, aviation, military, and automotive industries could use the technology to build complex machines that integrate with surfaces to be very compact, but can deploy to do...
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Blog: Propulsion
You think riding your Harley Davidson is exciting? Try the ElectraFly.
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Blog: Transportation
Taxi! A steady stream of AUVSI XPONENTIAL attendees got to see Bell's new air vehicle up close.
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Blog: Automotive
Researchers created transparent polythene sheets that have a strength greater than aluminum – at a fraction of the weight.
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Briefs: Transportation
System Enables Direct Data Transmission Between Underwater and Airborne Devices
Today, underwater sensors cannot share data with those on land, as both use different wireless signals that only work in their respective mediums. Radio signals that travel through air die very rapidly in water. Acoustic signals, or sonar, sent by underwater devices...
Briefs: Medical
Titanium is as strong as steel but about twice as light. These properties depend on the way a metal’s atoms are stacked but random defects that arise in the...
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Special Reports: Electronics & Computers
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RF & Microwave Electronics - April 2019
In this compendium of recent articles from the editors of Aerospace & Defense Technology and Tech Briefs, read about how high-frequency electronics advances are enabling new applications in space...

Articles: Aerospace
Lightweighting design is an extensively explored and utilized concept in many industries, especially in aerospace applications, and is associated with the green aviation concept. The...
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Special Reports: Defense
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Unmanned Systems - March 2019
The latest advances in aerial, ground, and underwater unmanned systems are covered in this special report, a compendium of recent articles from the editors of Tech Briefs and Aerospace & Defense Technology.

Briefs: Communications
Future Unmanned Aerial Systems (UAS) and air taxis will require advanced onboard autonomy to operate safely within complex and dynamic urban environments. Urban landscapes are...
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Briefs: Medical
It's hard to get an X-ray image of low-density material like tissue between bones because X-rays just pass right through like sunlight through a window. Sandia studies myriads of low-density materials, from...
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Briefs: Semiconductors & ICs
Multi-Purpose, Flexible Wing Structure for Small Unmanned Aerial Systems
Small unmanned aircraft systems (UAS), also known as micro air vehicles, are promising tools for a variety of military and commercial applications. Some small UAS have flexible wings and are lightweight, making them back-packable and easy to deploy. Most UAS that are currently...
Briefs: Aerospace
Heat shields are essentially used as the brakes to stop spacecraft from burning up and crashing on entry and reentry into a planet's atmosphere. Current spacecraft heat shield methods include huge...
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Briefs: Aerospace
NASA Langley Research Center has developed a new approach for designing aircraft liner cores for noise reduction. The cores are comprised of multiple honeycomb-shaped chambers, each...
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Briefs: Aerospace
Self-Stabilizing, Distributed, Symmetric, Fault-Tolerant Synchronization
Distributed systems have become an integral part of safety-critical computing applications, necessitating system designs that incorporate complex fault-tolerant resource management functions to provide globally coordinated operations with ultra-reliability. As a result, robust...
Briefs: Propulsion
Real-Time, Fuel-Optimal, Powered Descent Guidance Using Interpolated Time-of-Flight and Propellant Mass
Soft landing using rockets requires a trajectory to be planned for the lander from rocket ignition — typically several kilometers in altitude and moving at up to 200 m/s — to the point near the surface with near-zero velocity. The exact...
Briefs: Semiconductors & ICs
Most electronics only function within a certain temperature range but blending two organic materials together creates electronics that withstand extreme heat. The new plastic material could reliably conduct...
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Briefs: Aerospace
Effects of Reynolds and Mach Numbers in Large Eddy Simulation of Supersonic Round Jets
Rockets/landers arrive on the Moon with supersonic speed and impact lunar regolith. There is no reliable software to computationally simulate in an effective way the supersonic plumes escaping from these rockets/devices. A Large Eddy Simulation (LES) model and...
Articles: Test & Measurement
This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that innovation.
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Question of the Week: Test & Measurement
Will ‘Developable Mechanisms’ Solve Complex Tasks?
Brigham Young University engineers have created "developable mechanisms" that they hope to use in components like surgical instruments, adjustable airplane wings, robotic arms, or vehicle cylinders. Watch the demo on Tech Briefs TV, to see how the flat shapes can be converted into 3D figures.
Blog: Aerospace
Even a shape-morphing plane is possible, says Harvard's Ehsan Hajiesmaili.
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Briefs: Energy
Plasma Generator Using Spiral Conductors
NASA's Langley Research Center has developed a patented SansEC sensor technology for use in many different areas, including tall structures and wind turbines. The SansEC technology is a proven wireless sensing platform capable of measuring the electrical impedance of physical matter in proximity to the...
Briefs: Aerospace
From airplane wings, to overhead power lines, to the giant blades of wind turbines, a buildup of ice can cause problems ranging from impaired performance all the way to catastrophic...
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Briefs: Manufacturing & Prototyping
RTM370 imide resin was developed to address the limitations of conventional imide resins, which are generated from commercially available symmetrical biphenyl dianhydride...
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Briefs: Motion Control
A novel foot-pedal-operated system and device were developed to control translational and rotational movement of an object in three-dimensional (3D) space. The Foot Pedal Controller system enables operators to control...
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Application Briefs: Robotics, Automation & Control
Robots are helping a European airplane manufacturer cut into an eight-year backlog of orders for one of its most popular aircraft.
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Special Reports: Defense
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Rugged Computing - January 2019
From the depths of the ocean to the extreme temperatures of space, computing advances enable applications in the harshest environments. To help you keep pace with the latest developments, we present this...

Briefs: Aerospace
Vertical Take Off and Landing (VTOL) Aircraft with Vectored Thrust for Control and Continuously Variable Pitch Attitude in Hover
Most fixed-wing VTOL unmanned aerial vehicles (UAVs) take off vertically, then transition to horizontal flight. This is a new type of UAV that has unique capability. It can vary its hover position from “nose up”...
Briefs: Imaging
The ability to fly at supersonic speed without producing unsettling sonic booms would re-open a path to faster commercial aviation. In pursuit of aerodynamics that would...
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