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Defense

DARPA Teams With Industry to Create Spaceplane

DARPA has created an Experimental Spaceplane (XS-1) to create a new paradigm for more routine, responsive, and affordable space operations. In an important step toward that goal, DARPA has awarded...

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Briefs
Motion Control

Compact Active Vibration Control System

This innovation consists of an analog controller, diamond-shaped patch actuator, and point sensors (such as accelerometers). The actuator is designed to couple to the flexural response of the structure in the same manner as a group of point sensors. This results in a co-located transducer pair. The signals...

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Test & Measurement

Hurricane-Tracking Unmanned Systems Win NASA Challenge

NASA has selected three winning designs solicited to address the technological limitations of the uncrewed aerial systems (UAS) currently used to track and collect data on hurricanes....

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Robotics, Automation & Control

Synthetic Aperture Sonar Can Help Navy Hunt Sea Mines

Since World War II, sea mines have damaged or sunk four times more U.S. Navy ships than all other means of attack combined, according to a Navy report on mine warfare. New sonar research...

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Aerospace

Mobile Robots Help Technicians Manufacture Airplanes

A new mobile assistant is being developed to support technicians in the airplane manufacturing industry when applying sealant, measuring, and testing — without putting them at risk. In the...

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Articles
Defense

Simulating Lightweight Vehicles Operating on Discrete Terrain

Engineers increasingly rely on simulation to augment and, in some cases, replace costly and time consuming experimental work. However, current simulation capabilities are sometimes...

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Briefs
Robotics, Automation & Control

Robot Vision System for Precise Object Retrieval in Unmanned Systems

Automating large-scale material handling systems that involve picking up or retrieving items via cranes or robot arms can yield big benefits, particularly in harsh or...

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