Electronics & Software

Artificial neural networks comprising spiking neurons of a novel type have been conceived as improved pattern- analysis and pattern- recognition computational systems. These neurons are represented by a mathematical model denoted the state- variable model (SVM), which among other things, exploits a...

Symmetrical phase-only filtering (SPOF) can be exploited to obtain substantial improvements in the results of data processing in particle- image velocimetry (PIV). In comparison with traditional PIV data processing, SPOF PIV data processing yields narrower and larger amplitude correlation...

Engineers at Purdue, Northwestern University, and the University of Southern California have created an active-matrix display using a new class of thin, transparent transistors and circuits. The transistors incorporate nanowires, tiny cylindrical structures assembled on glass or films of flexible plastic that are as thin as...

COMSOL Multiphysics Ten Years of Unlimited Simulation Capabilities! In 1998 COMSOL Multiphysics® made its debut as the first commercial environment to enable scientists, engineers, and researchers to solve any system of coupled physics phenomena in the same simulation. Ever since, users have leveraged the insights of...

Simulation Tool for ASCTA Microsensor Network Architecture (STAMiNA) ["ASCTA" denotes the Advanced Sensors Collaborative Technology Alliance.] is a computer program for evaluating conceptual sensor networks deployed over terrain to provide military situational awareness. This or a similar program is...

It has been proposed to place laser or radio transponders at suitably chosen locations on the Moon to increase the accuracy achievable using the Global Positioning System (GPS) or other satellite-based positioning system. The accuracy of GPS position measurements depends on the accuracy of...

Supplier Management System (SMS) allows for a consistent, agency-wide performance rating system for suppliers used by NASA. This version (2.0) combines separate databases into one central database that allows for the sharing of supplier data. Information extracted from the NBS/Oracle database can be used to generate...

Improved interface software for communication between the CLARAty Decision and Functional layers has been developed. [The Coupled Layer Architecture for Robotics Autonomy (CLARAty) was described in "Coupled-Layer Robotics Architecture for Autonomy" (NPO-21218), NASA Tech Briefs, Vol. 26,...

This toolkit provides a common interface for displaying graphical user interface (GUI) components in stereo using either specialized stereo display hardware (e.g., liquid crystal shutter or polarized glasses) or anaglyph display (red/blue glasses) on standard workstation displays. An application using this toolkit will...

A computer program known as "PyPele," originally written as a Python-language extension module of a C++ language program, has been rewritten in pure Python language. The original version of PyPele dispatches and coordinates parallel- processing tasks on cluster computers and provides a conceptual framework for...

University of Maryland researchers have created a process to convert large volumes of plant products, from leftover brewer's mash to paper trash, into ethanol and other biofuel alternatives to gasoline. Developed by University of Maryland professors Steve Hutcheson and Ron Weiner, the technique, called the Zymetis process, produces...

Martin Schubert - a Rensselaer Polytechnic Institute doctoral student in electrical, computer, and systems engineering - has developed the first polarized light emitting diode (LED), an innovation that could vastly improve LCD screens, conserve energy, and usher in the next generation of ultra-efficient LEDs. Schubert's...