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...

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...

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:

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...

For over two decades, the VMEbus has maintained its position as the open standard bus architecture of choice for defense and aerospace applications. While VME, a parallel...

The demand for fast evolution and increased flexibility of electronics systems in many different industries and applications has driven the trend for increasing software content of...

Anumerical-simulation study of stall and stall control in radial and axial compressor stages of gas turbine engines has been performed. This and other similar studies are needed...

In an application of computational fluid dynamics (CFD), flow fields about a slender-bodied finned projectile and the resulting aerodynamic forces and moments on the projectile were...

Briefs: Information Technology
Multi-Scale Model of Failure in a Composite Material

An adaptive concurrent multilevel computational model of failure in a heterogeneous-material structure has been developed. As used here, "concurrent" is a term of art characterizing a class of structural/material models that (1) incorporate submodels representing material substructures at...

Briefs: Electronics & Computers
Adaptive Quantum Design of Semiconductor Devices

The term "adaptive quantum design" denotes a methodology for systematically seeking robust, manufacturable designs of semiconductor devices — especially semiconductor optoelectronic...

A project called “System on a Chip Real-Time Emulation” (SOCRE) was undertaken to develop and demonstrate a methodology of simulation of operation and semiautomated design of...

Acomputational-simulation study of two ferrocene-based molecular electronic devices was performed as part of a continuing effort to develop a capability for ab initio design of...

Briefs: Photonics/Optics
Continuous-Wave Atom Laser

Progress has been made toward realization of a continuous-wave, phase-andamplitude- stable atom laser based on magnetic guiding, magnetic compression, and continuous distributed evaporative cooling of a sparse...

Briefs: Photonics/Optics
Adaptive Optoelectronic Eyes

Aprogram of research has built a technological foundation for further development of systems that could be characterized, variously, as "smart" cameras or adaptive optoelectronic eyes. A system according to this...

Briefs: Materials
Innovations Pertaining to Carbon-Based Materials

Some notable innovations in the design and manufacture of carbonbased materials have been made in a continuing program of basic research on carbon- based materials for use in propulsion systems of aircraft and spacecraft. The research has ranged over diverse topics that have included fabrication...

Briefs: Materials
Polymeric “Smart” Skin Materials

"Smart” skin materials based, variously, on polymers, dendrimers, carbon nanotubes, and/or other tailored molecular components are being developed for use as conformal coating surfaces of mechanical structures, including those of aircraft, to impart enhanced functionality to the coated surfaces. As used...

Research on the microstructures, chemical compositions, and reactivities of thermites that consist of or contain mixtures of MoO3 and Al particles has led to development of a process for making...

Molecular aptamer beacons (MABs) are being investigated for use as rapid-signaling probe compounds for detecting specific proteins of interest (target proteins). In the MAB approach, one...

Arrays of nanosensors for detecting biomolecules associated with breast cancer are undergoing development. It has been proposed to construct the arrays as silicon-based large-scale...

Briefs: Physical Sciences
Traveling-Wave Wide-Band Microstrip Antennas

Microstrip antennas that can be made to perform well over relatively wide frequency ranges but are mechanically and electrically simpler than prior such antennas have been invented. These antennas are designed to support traveling waves, in contradistinction to being designed traditionally to support...

Briefs: Physical Sciences
Spintronic Effects in Semiconductor Nanostructures

Progress has been made in calculation of spintronic effects in semiconductor nanostructures. The calculations contribute to the body of theoretical knowledge complementing recent experimental advances in generating, transporting, and detecting coherent spin-polarized populations of electron and...

Micro Memory®, Chatsworth, CA, has introduced Anvil™, a data storage subsystem for recording real-time sensor signals in intelligence and surveillance applications such as radar, signal intelligence,...

VMETRO, Houston, TX, offers the SANbric rugged storage system that enables commercial FibreChannel disks to be used for high-speed, streaming data recording applications in harsh environments such as military,...

The Heim Data division of Zodiac DataSystems, Belmar, NJ, has introduced the D7000 airborne data acquisition and recording system designed for a range of operational and flight test applications. The system...

The SL-86-911 rugged keyboard from IKEY IndustrialPeripherals, Austin, TX, can be integrated into tactical maintenance and diagnostic military products, and into control panels of submarines, tanks, vehicles, and jets.The...

Products
Flight Data Analysis Software

The MathWorks, Natick, MA, has released Aerospace Toolbox, which provides reference standards, environmental models, support for importing aerodynamic coefficients, and three-dimensional visualization capabilities in MATLAB®. With a built-in interface to the FlightGear flight simulator, the new toolbox lets...

Products
Rugged Multi-Function I/O Card

Radstone Embedded Computing, Billerica, MA, has announced the rugged CompactPCI MFIO-C6 multi-function I/O card that addresses CompactPCI applications in military computing. The card features an MPC8270 PowerQUICC II processor, 8 analog inputs, 7 open collector 250mA outputs, 48 LVTTL I/O channels, 5 LVDS output...

Products: Electronics & Computers
DC/DC Converter

The Electronics Group of Crane Aerospace & Electronics, Redmond, WA, has announced the Interpoint MPE series of DC/DC converters that accepts a 16 to 50 DVC input and provides single or dual outputs with up to 25 watts of...

Pentadyne Power Corp., Chatsworth, CA, offers the VSS+DCadvanced DC flywheel power system that stores energy kinetically instead of chemically, providing stable DC voltage for applications where power continuity is...

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