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Briefs
Materials

Nanodomain Model of Polymer-Derived Ceramics

Areport discusses a model developed to explain the unusual properties of polymer- derived ceramics (PDCs), which are so named because they are made by controlled pyrolysis of cross-linked polymers. PDCs are metastable ceramics that have potential to be further developed into high-temperature materials...

Briefs
Mechanical & Fluid Systems

Eccentric Mounting and Adjustment System for Belt-Driven Devices

This design relates to an eccentric mounting and adjustment (EMA) system for belt driving, or for belt-driven devices, that is installed and operated within the restricted confines of an engine compartment, typically a motor vehicle. It satisfies two essential requirements for...

Briefs
Physical Sciences

Power for Micro Autonomous Systems

The Micro Autonomous Systems and Technology (MAST) Collaborative Technology Alliance (CTA) has been initiated to spur basic research in small autonomous robots, particularly in four main areas: Microsystem...

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Briefs
Electronics & Computers

Low-Power Circuit for an Electromagnetic Warning System Sensor

Low-power sensors are important to the Army for monitoring infrastructure of the lifecycle of an operation. Isotope batteries can power and operate compact, low-power sensors for...

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Briefs
Electronics & Computers

Effects of Differing Carbon Nanotube Field-Effect Transistor Architectures

Understanding the differing methods and materials that can be used for producing carbon nanotube (CNT)- based electronic components means an informed use of materials...

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Briefs
Electronics & Computers

Silicon Carbide Junction Field-Effect Transistor Devices for Scalable Solid-State Circuit Breakers

Power electronic converters functioning as components in high-power systems, such as those of hybrid military ground vehicles, require fast fault...

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Briefs
Physical Sciences

Indoor Navigation for Unmanned Aerial Vehicles

This research proposed the use of inexpensive, lightweight range sensors for indoor unmanned aerial vehicle (UAV) navigation. Two potential range sensors were tested for suitability and error...

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Briefs
Physical Sciences

Modular, Portable, and Reconfigurable Wireless Sensing System

A modular, portable, reconfigurable wireless sensor system monitors and records environmental conditions in an aircraft cabin. By designing a sensor system that can be easily...

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Briefs
Materials

Performance Evaluation of Commercial Carbon Monofluoride Materials in Lithium Batteries

The performance of six different commercially available carbon monofluoride (CFx) materials was evaluated at four different discharge rates. The physical...

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Briefs
Mechanical & Fluid Systems

Lightcraft Propulsion for Launching a Small Satellite

A study of lightcraft propulsion systems in general has led to the conception and analysis of such a system for launching a small (having a mass no more than a few kilograms) satellite into...

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Products
Electronics & Computers

Power Film Resistors

The MPM20 Metal Tab TO-220 power film resistors from Caddock Electronics (Roseburg, OR) feature a standard lead finish of solderable thin gold for applications that require pure tin-free components. A non-inductive design...

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Products
Data Acquisition

Mobile Data Acquisition Recorder

LMS International (Troy, MI) has introduced the SCADAS Durability Recorder designed for rugged data acquisition in extreme conditions. It is resistant to water, dust, dirt, shock, vibration, and jolts, and...

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Products
Electronics & Computers

Embedded Computer

Diamond Systems Corp. (Mountain View, CA) has introduced Pluto, a compact board-level embedded computer based on the Intel Atom processor and featuring modular PC/104-Plus expansion. The PLT-N270-1G is the first in a series of...

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Products
Electronics & Computers

Rugged Keyboard

Advanced Input Systems (Coeur d’Alene, ID) offers the Grizzly Xtreme rugged keyboard for harsh environments. It is suited for use with gloved hands and light-pressure typing, and consists of an elastomer keypad encased in an...

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Products
Electronics & Computers

Radiation-Hardened ASICs

Aeroflex (Colorado Springs, CO) offers the UT130nHBD digital application-specific integrated circuits (ASICs) that are radiationhardened from 100 krad to 300 krad(Si) total ionizing dose (TID), with up to 15,000,000...

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Products
Electronics & Computers

Hermetically Sealed Circuit Boards

Douglas Electrical Components (Randolph, NJ) hermetically seals circuit boards, including flex, rigid, and hybrid circuits for high-volume applications with space or weight constraints such as military and...

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Articles
Aerospace

Evaluating the FPGA Selection Process in Military System Design

As technologies such as digital signal processors (DSPs), field programmable gate arrays (FPGAs), and general-purpose processors (GPPs) advance, product and feature differentiation...

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Articles
Test & Measurement

Fiber Interferometry for Testing Military Avionics

Fiber-optic networks have benefited from nearly 20 years of continuous expansion (notwithstanding the brief, yet surprisingly quiet period from 2002 to 2005). For terrestrial networking, this...

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Briefs
Electronics & Computers

High Assurance Virtualization Engine (HAVEN)

Virtualization technology has been around since the late 1960s. Initially, it was conceived to maximize utilization of expensive hardware by running multiple instances of an operating system (OS)...

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Briefs
Materials

Characterization of High-Temperature Polymer Thin Films for Power Conditioning Capacitors

Wide bandgap semiconductors (e.g., silicon carbide) will enable operation of military systems at temperatures above 150 °C, which eases thermal...

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Briefs
Materials

RF Polymer Composites for Electromagnetic Systems

Design of polymer composites with specific engineered electromagnetic properties are of use in a variety of physical electromagnetic systems above 100 MHz. In physical electromagnetic systems such as GPS, radomes, WiFi, etc., proper choice of the material can be transformative in that it can yield...

Briefs
Materials

Modeling Defects in Transparent Ceramics to Improve Military Armor

The dominant materials solution used for ballistic transparency protection of armored tactical platforms in commercial and military applications is low-cost glass backed by...

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Briefs
Materials

Validation of Hazardous Air Pollutant (HAP)-Free Torque Seal Inspection Lacquer

The Army uses numerous adhesives and sealants, among other coating materials, that contain significant amounts of hazardous air pollutants (HAPs). This work...

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Briefs
Electronics & Computers

Wireless Network Cocast: Location-Aware Cooperative Communications with Linear Network Coding

In wireless networks, reducing aggregate transmit power and having even power distribution increase the network lifetime. The conventional direct transmission (DTX) scheme results in high aggregate transmit power and uneven power distribution. In...

Briefs
Electronics & Computers

Memory-Based, Structured, Application-Specific Integrated Circuit (ASIC)

For air, space, and ground-based systems, there is a clear need for high-performance, lightweight, low-power, highly reliable computing on data-intensive applications. A...

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Briefs
Photonics/Optics

Solid-State, High-Energy Lasers Based on Rare-Earth Doped Gallium Nitride

Laser-based directed-energy weapons (DEW) are important components for future Army missile defense systems. The diode-pumped, rare-earth (RE)-doped, solid-state laser is a very promising path towards achieving a DEW-sufficient level of average power from a reasonably compact...

Briefs
Photonics/Optics

Analysis of Analog Photonic Links Employing Multiple-Channel (Arrayed) Receivers

Analog optical links are finding increased application in commercial and military systems ranging from radio-over-fiber applications, antenna remoting, and optical...

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Briefs
Photonics/Optics

Photonic Recirculating Delay Line for Analog-to-Digital Conversion

Aconventional analog fiber-optic link can be augmented with a recirculating optical delay loop so as to realize an optically assisted analogto- digital converter (ADC) that...

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Briefs
Photonics/Optics

Design and Development of a Package for a Diluted Waveguide Electro-Absorption Modulator

Externally coupled electroabsorption modulators (EAMs) are commonly used in order to transmit RF signals on optical fibers. Recently, an alternative device...

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