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Briefs Sensors/Data Acquisition
Dense Functionalized-Nanowire Biosensor Arrays
Progress has been made in the development of compact sensor arrays containing molecular electronic devices for detecting molecules of interest (especially biomolecules) with high sensitivity and...
Tech Transfer Reports
Compact Chip Architecture Provides High-Speed Image Processing
To quickly distinguish friend from foe or make sense of a visual scene, no machine can beat the human eyes and brain — at least not yet. But a better silicon eye has been built...
Briefs Electronics & Computers
Nanowire-Based Chemical and Biological Sensor Arrays
Acontinuing effort that supplements and complements the one summarized in the immediately preceding article is dedicated to the development of nanowire-based sensor arrays, with emphasis on maximizing the utility of such arrays for real-time sensing of molecular species associated with chemical...
Briefs Electronics & Computers
Improved Magnetic Sensor Based on Giant Magneto-Impedance
A low-power, highly stable electronic sensor circuit for measuring a small change in the ambient magnetic field with high sensitivity exploits the giant magneto-impedance (GMI) effect,...
Briefs Imaging
Miniature Hyperspectral Sensors for Imaging on Small UAVs
As unmanned vehicles get smaller and smaller, operational expectations and mission objectives demand a much broader array of platform capabilities — a necessity even with reduced...
Briefs Physical Sciences
Solid-State Viscosity Sensors For Military and Aerospace Applications
Embedded OEM application markets such as the military and aerospace industries are experiencing a growing demand for sensors that provide instantaneous and continuous process...
Briefs Electronics & Computers
Progress in Canted Sector Antennas and Non-Periodic Arrays
Progress has been made in a continuing effort to develop low-geometric-profile, wide-frequency-band microwave antennas intended for incorporation into wide-band aperiodic arrays for use...
Briefs Photonics/Optics
Photonic Analog-to-Digital Converters
Early steps have been taken toward the development of analog-to-digital converters (ADCs) that would incorporate photonic quantizers based on the technology of InP semiconductors. These photonic ADCs are...
Briefs Photonics/Optics
Photonic-Crystal-Based Devices for Commercial Applications
Several analog-to-digital converter (ADC) devices and part of a multispectral receiver have been designed, fabricated, and tested to demonstrate their feasibility as part of an effort...
Briefs Photonics/Optics
Infrared Data Link Using an MQW Modulator on a Retroreflector
A n infrared data link between a ground station and a small uninhabited helicopter in flight has been demonstrated in an effort to develop a type of system for free-space optical...
Briefs Materials
Self-Lubrication of Hot YSZ-Ag-Mo Nanocomposite Coatings
An experimental study has been performed to learn about the physical and chemical mechanisms of self-lubrication of coatings that comprise nanostructured composites of yttria-stabilized...
Briefs Mechanical & Fluid Systems
Hybrid Three-Axis Vibration Reducers
Hybrid (passive/active) devices have been developed to reduce the magnitudes of possibly threedimensional vibrations coupled from vibrating equipment on platforms to bases that support the platforms. These...
Briefs Mechanical & Fluid Systems
Some Advances in Reducing Drag and Suppressing Convection
Theoretical and computational research has yielded some advances in the art of designing active feedforward and feedback controllers to suppress thermal convection and reduce drag (by...
Briefs Information Technology
Autonomous Vehicles Would Learn by Mimicking Human Drivers
A program initiated by the Defense Advanced Research Projects Agency (DARPA) and now also pursued by other agencies called “Learning Applied to Ground Robots” (LAGR), is developing...
Briefs Information Technology
Advances in Algorithms for CFD and Finite-Element Simulation
A program of research and development has resulted in some advances in algorithms for computational fluid dynamics (CFD), finite-element simulation of solid objects undergoing large deformations, and some related topics. The main advances are summarized as follows:
Briefs Information Technology
Shape-Based Recognition of 3D Objects in 2D Images
An object-recognition algorithm analyzes data from two-dimensional (2D) images to locate and identify possibly complexly shaped three-dimensional (3D) objects in possibly highly cluttered...
Articles Aerospace
Advanced Training and Simulation Technology Helps Produce Mission-Ready Warfighters
Today's warfighters operate some of the most technologically advanced vehicles, aircraft, and weapons systems, and to do so effectively and safely, they require...
Articles Physical Sciences
Perspective - Colonel Lewis F. Setliff III
Colonel Lewis F. Setliff III Commander/District Engineer, St. Louis District U.S. Army Corps of Engineers In August of 2005, Hurricane Katrina hit the Gulf Coast and became one of the largest natural...
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