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Briefs Physical Sciences
Nanodevices Based on Actin-Filament End-Tracking Motors
In a continuing research project, nanoscale actuators based on actin-filament end- tracking motors have been synthesized and characterized. It is envisioned that such actuators will...
Briefs Mechanical & Fluid Systems
Tethered, Remotely Operated Miniature Submarine
A tethered, remotely operated, armed underwater vehicle has been conceived to satisfy a need for an uninhabited vehicle for Navy missions in which positive identification of targets is needed....
Articles Defense
Prototyping Advanced Military Radar Systems
Radar receiver design is seeing an increase in the number of digital tuning and digital signal processing (DSP) functions moved from back-end single-board computers into fixed front-end hardware...
Articles RF & Microwave Electronics
Role and Performance of the Global Precipitation Measurement Microwave Imager Instrument
The Global Precipitation Measurement (GPM) mission will initiate a new era in precipitation measurement in terms of its global extent and frequency of...
Application Briefs RF & Microwave Electronics
Microwave RF Amplifier Boosts Communications Power
When you watch TV or use a cell phone, amplifiers make the signal stronger or the voice clearer. A hybrid, high-powered microwave amplifier from Aria Microwave Systems of Teaneck, NJ enables...
Application Briefs RF & Microwave Electronics
Portable Antenna Helps Hurricane Survivors Communicate
Victims of Hurricane Katrina found peace of mind in the aftermath thanks to an inflatable antenna that enabled emergency satellite communications for displaced Mississippians.
Briefs Physical Sciences
Arcing and Vibration Tests of High-Power Patch Antennas
Electric-breakdown and vibration tests were performed on one-patch and two-patch versions of a prototype of a patch antenna designed to radiate a continuous- wave or pulsed signal in the S...
Briefs Physical Sciences
Antenna Electronically Steered Using MEMS Phase Shifters
An experimental phased-array microwave antenna assembly includes an array of eight patch antenna elements connected to Microelectromechanical System (MEMS) phase shifters, by means of...
Briefs Electronics & Computers
Design Study of a C-Band Crestatron
A design study of a crestatron that would operate in the frequency range from 3 to 6 GHz (which overlaps with the C band) has been performed. The basic crestatron concept was developed during the 1950s....
Products
MIL-STD Software Development Kit
Data Device Corp. (Bohemia, NY) has introduced software development kits (SDKs) for MIL-STD-1553 PC/104-Plus and PCI-104 cards, enabling users to develop source code to simulate, monitor, or troubleshoot 1553...
Products
Ballistic Protection System
The Rapid Armor Shelter System® from FY Composites (Nokia, Finland) is a modular ballistic protection system. The military-certified, lightweight fortification wall system can be used to protect fast-moving...
Products
LCD Interface Controller
The HE-1920 from Digital View, Morgan Hill, CA, is a buffered, multi-sync interface controller that provides analog and digital connections for large-format, high-definition FTF LCDs. It features wide operating...
Products
Temporary Air Conditioner
The ACM 18 CBRN from Dantherm Air Handling (Spartanburg, SC) is a transportable unit developed to provide air conditioning in temporary or transportable buildings or tents. The compact unit is made of aluminum and is...
Products
Transport Refrigerators
Dometic (Luxemburg) has introduced autonomous transport refrigerators based on an adsorption principle and using insulated containers to transport fresh perishables. The Zeolite technology generates cooling capacity by...
Products
Binocular Laser Range Finders
Vectronix (Leesburg, VA) offers the Vector™ family of binocular laser range finders for observation, distance, and angle measurement. The binoculars provide high-resolution optics, an eyesafe laser range...
Products Mechanical & Fluid Systems
Actuator Protection Boot
Polymer Technologies (Clifton, NJ) has developed a transparent calibrated moisture boot that protects the rotating shaft and seal in the UH-60 Blackhawk Helicopter Pitch Trim Actuator, a flight control component that...
Articles Aerospace
Micro Air Vehicles Serve as Eyes in the Sky for Ground Troops
Honeywell Aerospace has developed the Micro Air Vehicle (MAV), an unmanned aerial vehicle (UAV) based on ducted-fan technology that recently was deployed in Iraq to identify...
Articles Defense
Network Keeps Line of Communication Open to Convoys
An airman riding as part of a convoy escort team in Iraq keys his radio microphone to check in with his base, and hears nothing but dead air. The U.S. Air Force is leading a joint...
Briefs Electronics & Computers
Protection Schemes for Advanced Shipboard Electrical Systems
A research program has made progress toward the development of schemes for protection against faults in next-generation DC zonal shipboard electrical systems (DC SESs) and for...
Briefs Electronics & Computers
DC Power Converter for 200°C Containing SiC Transistors
A DC-to-DC power converter, nominally rated for a power of 180 W, an input potential of 28 V, an output potential of 270 V, and a maximum operating temperature of 200°C has been...
Briefs Information Technology
Simulation of a Flywheel Energy-Storage System
A computational model has been developed to simulate the operation of a laboratory flywheel energy-storage system that is a subsystem of the Flywheel Attitude Control, Energy Transmission, and Storage (FACETS) system located at Kirtland Air Force Base in New Mexico. The FACETS, which includes three...
Briefs Electronics & Computers
A Comparison of SiC-Based Devices for Use as Power Switches
A report details a survey of the state of technological development and commercial availability of SiC-based electronic devices that has been performed to evaluate the suitability of such devices as power switches in present and future applications in which high reliability and/or...
Briefs Electronics & Computers
Advances in Organic-Based Electronic Devices
A program of research has addressed multiple topics in the field of electronic and optoelectronic devices based on polymers and other organic substances, with special attention to memory devices and...
Briefs Electronics & Computers
AlxInyGa1-x-yN Ultraviolet Light-Emitting Triodes
Light-emitting triodes (LETs) have been the focus of a program of research with a goal of increasing the quantum efficiencies of ultraviolet-lightemitting devices implemented in the...
Briefs Materials
Less-Polluting Resins for Molding Composite Structures
Liquid resins that are suitable for use in molding composite- material structural panels and that contain and emit smaller amounts of air-polluting volatile organic compounds than do...
Briefs Materials
Some Advances in High-Temperature Superconductor Coatings
Several advances were made in a program focused on the science and technology of high-temperature superconductors [especially yttrium barium copper oxide ("YBCO")] deposited on normal electrical conductors. This program was part of a continuing effort to develop superconductor-coated normal...
Briefs Mechanical & Fluid Systems
The Future of Space Propulsion
A paper presents an overview of state of the art of space propulsion, oriented toward attempting to understand recent history in order to make some predictions about future developments. As used here, "space propulsion" refers generally to what are now called "spacelift" and "spacecraft propulsion." Further, as used...
Briefs Mechanical & Fluid Systems
Miniature Wheel-Leg Mobile Robots
Mini-Whegs™ are small mobile robots, designed according to abstracted cockroach locomotion principles, that can run and can climb obstacles taller than themselves. Mini-Whegs are derived from larger mobile...
Briefs Manufacturing & Prototyping
Progress Toward Carbon-Nanotube Arrays for Probing Cells
Progress has been reported in research oriented toward the goal of fabricating arrays of interconnected single-walled carbon nanotubes (SWNTs) that could serve as probes for measuring...
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