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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....
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 RF & Microwave Electronics
Implementing a GPS Waveform Under the SCA
A continuing development effort focuses on implementation of a Global Positioning System (GPS) waveform under the Software Communications Architecture (SCA). [As used within the special technological...
Briefs Physical Sciences
Adaptive Deblurring of Noisy Images
An algorithm for adaptive deblurring of images has been designed to be less adversely affected by image noise than are prior deblurring algorithms. The need for this or another noise-tolerant deblurring...
Briefs Materials
Dimensional Stabilization of Composite Space Structures
A research project has yielded progress on several fronts toward the goal of minimizing thermal and aging distortions of composite-material (specifically, polymer- matrix/graphite-fiber)...
Briefs Materials
Gold-Based Nanoparticle Liquids for Electronic Applications
Electrically conductive, solventless nanoparticle liquids, consisting of gold nanoparticles chemically functionalized with large organic molecular groups, have been investigated for...
Briefs Materials
Incorporating Functional Fillers into Silicone Elastomer Systems
Silicones can be developed into fluids, gels, adhesives, elastomers, and resins designed with unique properties that make them ideal for specific application uses in the defense...
Briefs Electronics & Computers
Conjugated Polymers Having High Charge-Carrier Mobilities
A three-year research project encompassed multiple studies of (1) polymer semiconductors that exhibit relatively high electric-charge- carrier mobilities and (2) applications of these...
Briefs Electronics & Computers
Software-Defined Radios for Urban and Indoor Navigation
Software-defined radios (SDRs) are being developed to provide positioning and communication (POSCOMM) services inside buildings and tunnels, under tree canopies, and in other environments...
Briefs Photonics/Optics
Cleaning and Protecting Large Mirrors Using a Polymer Solution
Cleaning and protecting optics is a challenge — contamination must be removed without damaging the surface. Preventing recontamination for extended periods of time after...
Briefs Electronics & Computers
Network-Enabled Resource Devices
Network Enabled Resource Devices (NERDs) combine the most common electronic components used in robotic applications into a standard electronics box with "plug-n-play" capabilities. Risk reduction efforts, systems testing and integration, and modifying the functionality of evolving systems becomes greatly simplified...
Briefs Test & Measurement
Delta-Sigma UHF Digital Waveform Generator
A prototype Digital Waveform Generator (DWG) in the ultra-high-frequency (UHF) range uses Delta-Sigma (Δ−Σ) modulation techniques, which permit arbitrary and accurate waveform...
Briefs Electronics & Computers
Applying Reconfigurable Computing to Acoustic Sensors Using FPGAs
A novel microsensor processing architecture allows a field-programmable gate array (FPGA) to act as a reprogrammable preprocessor or coprocessor to a general-purpose processor...
Briefs Electronics & Computers
FPGA-Based Communication Channel for Digital Signal Processor Chips
A method for networking, and a network of, digital signal processors (DSP) via at least one field-programmable gate array (FPGA) enables the simultaneous broadcast of data from a DSP to a number of DSPs. The apparatus comprises a host DSP, at least one FPGA in communication with...
Briefs Information Technology
Enlightened Multiscale Simulation of Biochemical Networks
A continuing research project is dedicated to development of mathematical and software infrastructure in support of post genomics research in systems biology. One near-term objective of the project is to contribute to deeper understanding of the organizational principles of biological...
Briefs Information Technology
Sensor Validation Using Nonlinear Minor-Component Analysis
Aconcept of sensor validation using nonlinear minor-component analysis (NLMCA) has been proposed as a theoretical basis of a sensor fault-detection-and isolation (FDI) module in a...
Briefs Physical Sciences
Mechanical Aspects of Structural Composite Batteries
In furtherance of the development described in the immediately preceding article, an experimental study focusing on mechanical aspects of structural composite batteries was performed. In this...
Briefs Physical Sciences
Structural Composite Batteries
A continuing program of research and development is devoted to the design, fabrication, and testing of polymeric composite- material devices that are multifunctional in the sense that they both store...
Briefs Physical Sciences
Advances Toward Development of "Smart Dust" Biosensors
Progress has been made toward meeting several technical challenges in a continuing effort to develop “smart dust” sensors for remote detection of chemical and biological agents. Until...
Briefs Medical
Progress Toward Cell-Directed Assembly of Nanostructures
During 2007, progress was made on several fronts in a research program oriented toward developing capabilities for biocompatible and biomimetic self-assembly of nanostructures that could...
Briefs Medical
Toward High-Performance Neural Control of Prosthetic Devices
A program of basic and applied research in neuroscience is dedicated to (1) advancing fundamental understanding of how the human brain plans and executes arm movements and (2) designing and building high-performance neural prostheses for controlling arm prostheses. The basic-research part...
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...
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 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 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 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 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 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
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...
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