Keyword: Logistics

Articles: Electronics & Computers

For 25 years, the VME architecture defined COTS systems that met the demand for increases in computing and connectivity. Successive generations of new processors provided more and more compute cycles, while VME bandwidth evolved in a...

Articles: Photonics/Optics

Film cameras were traditionally manufactured by discrete assembly, which means each component was fabricated as an individual item, tested if necessary, and then assembled into the final working product. The...

Application Briefs: Photonics/Optics

Manufacturers that design, formulate and apply coatings have struggled for years to find a rigorous and easy-to-use method that reliably measures the color and appearance of...

Briefs: Physical Sciences

An alignment jig (see figure) places a THz horn and power detector at the proper locations with respect to the focal points of a conic reflector in order to couple total power of the...

Articles: Information Technology

Many of us believe that if we don’t have ground loops we don’t need to isolate analog I/O signals. Yet there are five very real – and very different – reasons to isolate every one of your...

Briefs: Software
Geospatial Authentication

A software package that has been designed to allow authentication for determining if the rover(s) is/are within a set of boundaries or a specific area to access critical geospatial information by using GPS signal structures as a means to authenticate mobile devices into a network wirelessly and in real-time has been...

Articles: Electronics & Computers

The increasing emphasis on green technologies has focused more attention on low power design. Microcontroller vendors are responding by increasing their offerings of ultra low power devices that...

Articles: Electronics & Computers

The proliferation of FPGAs into the embedded computing industry has opened up many new pathways for designers to design cost-effective systems that will withstand technology upgrades, changes in...

Articles: Electronics & Computers

Mobile devices are increasingly coming under attack from malicious applications. As more complex operating systems (OS), such as Symbian, Windows Mobile, and Linux are used in handsets,...

Application Briefs: Imaging

A focal plane array designed for the Missile Defense Agency’s (MDA) Exoatmospheric Kill Vehicle has helped a scientist see farther into the infrared spectrum.

National...

Briefs: Information Technology
Integrated System Health Management Development Toolkit

This software toolkit is designed to model complex systems for the implementation of embedded Integrated System Health Management (ISHM) capability, which focuses on determining the condition (health) of every element in a complex system (detect anomalies, diagnose causes, and predict...

Application Briefs: Robotics, Automation & Control

Echo Hill Automation Inc., a Beamsville, Ontario, Canada company founded by mechanical engineers and brothers Dan and Harry Schellenberg, has grown from a small two-man operation...

Briefs: Information Technology
Truncation Depth Rule-of-Thumb for Convolutional Codes

In this innovation, it is shown that a commonly used rule of thumb (that the truncation depth of a convolutional code should be five times the memory length, m, of the code) is accurate only for rate 1/2 codes. In fact, the truncation depth should be 2.5 m/(1 – r), where r is the code...

Briefs: Software
Distributing Data to Hand-Held Devices in a Wireless Network

ADROIT is a developmental computer program for real-time distribution of complex data streams for display on Web-enabled, portable terminals held by members of an operational team of a spacecraft-command- and-control center who may be located away from the center. Examples of such...

Briefs: Information Technology
MODIS Atmospheric Data Handler

A number of science data sets are derived from the observations of the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument onboard NASA’s Terra and Aqua satellites. These data typically contain information on retrieval techniques, quality-control flags, and geo-referencing information. These...

Briefs: Semiconductors & ICs

Prototype logic gates made of n-channel junction field-effect transistors (JFETs) and epitaxial resistors have been demonstrated, with a view toward eventual implementation of...

Application Briefs: Communications
System Provides Critical Communications Among Stennis Rocket Test Team Members
Subsystem Multiplexer (Sub-MUX)
Quintron Systems
Santa Maria, CA
805-928-4343
www.quintron.com

NASA has awarded Quintron Systems an Indefinite-Delivery- Indefinite-Quantity (IDIQ) contract, and the first task order is for a command and...

Briefs: Materials
Predicting Properties of Unidirectional-Nanofiber Composites

A theory for predicting mechanical, thermal, electrical, and other properties of unidirectional-nanofiber/matrix composite materials is based on the prior theory of micromechanics of composite materials. In the development of the present theory, the prior theory of micromechanics was...

Briefs: Materials
Hall-Effect Thruster Utilizing Bismuth as Propellant

A laboratory-model Hall-effect spacecraft thruster was developed that utilizes bismuth as the propellant. Xenon was used in most prior Hall-effect thrusters. Bismuth is an attractive alternative because it has a larger atomic mass, a larger electron- impact- ionization cross-section, and is...

Briefs: Physical Sciences

A method of using ellipsometry or polarization analysis of light in total internal reflection of a surface to determine the number density of gold nanoparticles on a smooth...

Articles: Electronics & Computers

Since the beginning of PC-based data acquisition and control in the 1980s, one question has remained a constant consideration for all who would specify a new DAQ system. Is this application better...

Application Briefs: Electronics & Computers

The design of enclosures to house networking servers and components should be guided by one overriding concern — heat. Servers, in particular, generate a great deal of heat, so an...

Briefs: Information Technology
Core Technical Capability Laboratory Management System

The Core Technical Capability Lab - oratory Management System (CTCLMS) consists of dynamically generated Web pages used to access a database containing detailed CTC lab data with the software hosted on a server that allows users to have remote access. Users log into the system with their KSC...

Briefs: Physical Sciences
Whispering Gallery Mode Resonator With Orthogonally Reconfigurable Filter Function

An optical resonator has been developed with reconfigurable filter function that has resonant lines that can be shifted precisely and independently from each other, creating any desirable combination of resonant lines. This is achieved by changing the axial...

Articles: Robotics, Automation & Control

Reactive, avoidable equipment repairs are a leading contributor to lost productivity in industrial manufacturing operations. Parts with an average selling price of just a few...

Application Briefs: Robotics, Automation & Control
QuickSilver Servo Motors Drive Autonomous Vehicles

The design of remotely operated, autonomous battery-powered vehicles places special requirements on motion control systems. High torque at low speeds is needed to climb over obstacles, while higher speed operation is needed for cruise speed. Efficient operation from lower voltages (12V to 48V)...

Articles: Electronics & Computers
Interview with Ray Alderman, Executive Director of VITA

Founded in 1984 to promote VMEbus technology, VITA is a non-profit organization of more than 125 vendor companies who share a common interest in real-time, modular embedded computing systems. In August 2008, VITA's Executive Director, Ray Alderman, agreed to speak with Embedded Technology's...

Briefs: Test & Measurement

Power amplifiers comprising InP-based high-electron-mobility transistors (HEMTs) in coplanar-waveguide (CPW) circuits designed for operation at frequencies of hundreds of gigahertz,...

Books & Reports: Software
Stochastic Analysis of Orbital Lifetimes of Spacecraft

A document discusses (1) a Monte-Carlo-based methodology for probabilistic prediction and analysis of orbital lifetimes of spacecraft and (2) Orbital Lifetime Monte Carlo (OLMC) — a Fortran computer program, consisting of a previously developed long-term orbit-propagator integrated with a...