Briefs: Software
Adjoint Error Estimation for Embedded-Boundary Cartesian Meshes for use with Cart3D

This technology provides means of estimating numerical errors in user-specified output functionals, such as lift or drag, for fluid flow simulations. The new...

Briefs: Robotics, Automation & Control
Evolving and Controlling Behaviors in a Computation-Free Robot Swarm

Flocks of birds, schools of fish, and colonies of ants exhibit a remarkable robustness and resilience, despite the limited capabilities of each individual. Recently, research...

Briefs: Test & Measurement
Component Leak Test Apparatus

A component leak test apparatus investigates the performance of fittings at low temperature and/or high pressure. Its performance was...

Briefs: Electronics & Computers
Semiconductor Blocks Heat Transfer and Preserves Conductivity

A collective rattling effect in a type of crystalline semiconductor was discovered to block most heat transfer...

Briefs: Manufacturing & Prototyping
High-Resolution, 3D Cell-Printing of Living Tissues

Printing high-resolution living tissues is difficult, as the cells often move within printed structures, and can collapse on themselves. A method of 3D-printing laboratory-grown cells to form...

Briefs: Manufacturing & Prototyping
Stress-Induced Nanofabrication

Currently, the synthesis of nanomaterials relies on special inter-particle chemical and physical reactions, which restricts their development. However, stress-induced nanofabrication can effectively render arrays of...

Briefs: Materials
Inorganic-Organic Hybrid Polymers for High-Temperature Applications

A new class of polymeric materials was developed with resistance to heat, dielectric breakdown, and oxidation at high temperatures. For applications that demand high temperature...

White Papers: Electronics & Computers
Software-Defined Radio Handbook

SDR (Software-Defined Radio) has revolutionized electronic systems for a variety of applications including communications, data acquisition and signal processing.This handbook shows how DDCs (Digital Downconverters)...

White Papers: Electronics & Computers
Critical Techniques for High-Speed A/Ds In Real-Time Systems Handbook

To help define the meaning of “high-speed A/D” used in this handbook, we will be focusing primarily on A/D converters with sampling rates higher than 100 MHz. We will review...

News: Photonics/Optics
A Real Engineering Feat: Two Holograms on One Surface

For years many engineers have assumed that you cannot encode more than one holographic image in a single surface — at...

News: Green Design & Manufacturing
The Top Tech Briefs Stories of 2017

With another year of Tech Briefs almost in the books, it's time to look at our most-read news articles of 2017.

Top stories...

INSIDER: Imaging
Radar Sees Through Walls – By Seeking Symmetry

Using a narrow band of microwave frequencies, researchers at Duke University found a new way to see on the other side of the...

White Papers: Electronics & Computers
High-Speed Switched Serial Fabrics Improve System Design

Well into its third decade of widespread deployment, VME adopted the new VXS gigabit serial interface, clearly representing the most significant leap in backplane data transfer rates...

White Papers: Electronics & Computers
High-Speed Real Time Recording Systems

In today’s world of high-speed A/D converters operating in the gigahertz range, real-time signal recording has become a challenging task that requires specialized hardware and intelligent application...

White Papers: Electronics & Computers
Putting FPGAs to Work in Software Radio Systems

FPGAs have become an increasingly important resource for software radio systems. Programmable logic technology now offers significant advantages for implementing software radio functions such as DDCs...

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