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Briefs Materials
Electrochemical Energy Storage Materials
One of the most important requirements in next-generation batteries is to concurrently deliver high energy density and high power density (fast charge-discharge rates). The high power density requirement...
Briefs Materials
Solar and Thermal Energy Harvesting Textile Composites for Aerospace Applications
The proposed research focuses on developing novel energy harvesting devices that can be integrated with loadbearing structures in an air vehicle (e.g. a UAV)....
Briefs Materials
Thermo-Elastic Nondestructive Evaluation of Fatigue Damage in PMR-15 Resin
New aircraft are expected to use more composite materials. This drives the need for nondestructive evaluation (NDE) of composite materials. Current aircraft are flown...
Briefs Test & Measurement
Characterization of Ceramic Composite Materials Using Terahertz Nondestructive Evaluation Techniques
This work describes the use of nondestructive evaluation (NDE) techniques to characterize defects such as rust, voids, etc. in materials, and...
Briefs Materials
High Strain Rate Mechanical Properties of Glassy Polymers
Arange of experimental data has been generated describing the response of glassy polymers to high strain rate loading in compression. Recently, research programs that study the combined effects of temperature and strain rate have made significant steps in providing better understanding of...
Briefs RF & Microwave Electronics
Record and Playback Capabilities for Car Radio and GPS System Testing
With its international headquarters in Germany, IAV Automotive Engineering is one of the leading engineering and design providers for the automotive industry, working for...
Briefs Imaging
Thermal-to-Visible Face Recognition
For nighttime surveillance, acquisition of visible light imagery is impractical due to the lack of illumination. Thermal imaging, which acquires mid-wave infrared or long-wave infrared radiation naturally...
Briefs Physical Sciences
Target Detection and Classification Using Seismic and PIR Sensors
Unattended ground sensors (UGS) are widely used in industrial monitoring and military operations. Such UGS systems are usually lightweight devices that automatically monitor the...
Briefs Physical Sciences
Component Identification in Multi-Chemical Mixtures with Swept-Wavelength Resonant-Raman Spectroscopy
The utilization of ultraviolet resonance Raman spectroscopy for the detection and identification of chemical, biological, and nuclear hazards is of great interest due to the sensitivity and specificity afforded by this technique. Detection by means...
Briefs Sensors/Data Acquisition
Analysis of Mine Impulse Data Using Stereo-Digital Image Correlation
Improvised explosive devices (IEDs) and other traditional under-body blast weapons are a significant threat to military ground vehicle systems. Engineers and scientists...
Briefs RF & Microwave Electronics
Modeling Supports Energy-Saving Microwave Technologies
During the Apollo Program, astronauts on the Moon encountered a small menace that created big problems: lunar dust. Similar to how tiny bits of Styrofoam behave on Earth — adhering to...
Briefs Physical Sciences
Wheel Force Transducer for Field Testing
This project endeavors to develop, validate, and calibrate cost-effective field test equipment for measuring tire characteristics on vehicles while driving off-road. The four wheel force transducers are...
Briefs Photonics/Optics
Thermal Mechanical Fatigue Crack Growth Testing
Turbines in aircraft turbojet engines are being subject to increasingly higher temperatures to improve fuel efficiency. High turbine efficiency requires the ability of turbine blades to withstand...
Briefs Physical Sciences
Evaluation of Three Extremity Armor Systems
The US Marine Corps and the US Army have been engaged in efforts to evaluate improved body armor, including armor to protect the extremities. These efforts are focused on both body armor performance...
Briefs Electronics & Computers
Low-Power Distributed Jammer Network
The Distributed Jammer Network (DJN) is composed of a large number of tiny, low-power jammers, which are distributed inside a target network and emit radio energy to disrupt its communications. Recent...
Briefs Electronics & Computers
Fundamentals of Metamaterials for High-Power RF Applications
Recent years have seen a burgeoning interest in the physics and applications of metamaterials. Briefly, metamaterials consist of a periodic array of subwavelength structures that...
Briefs Mechanical & Fluid Systems
Thermal Analysis and Microhardness Mapping in Hybrid Laser Welds in a Structural Steel
The concept of combining a laser welding system with a conventional arc welding system (GTAW) was first proposed in order to improve the stability of the laser welding system and to allow greater flexibility in part fit-up. Prior research stated that using a YAG...
Briefs Mechanical & Fluid Systems
Encapsulated Ball Bearings for Rotary Micro Machines
Microelectromechanical systems (MEMS)-fabricated silicon rotary elements for micro-motors, micro-generators, and micro-turbomachinery have received growing attention with applications in...
Briefs Mechanical & Fluid Systems
Reverse Pressure Capable Finger Seal
Each finger seal consists of a number of multiple thin metal laminates, each with a multitude of flexible projections that are referred to as “fingers.” To form a functional seal, multiple laminates are...
Briefs Manufacturing & Prototyping
Operation and On-Chip Integration of Cavity-QED-Based Detectors for Single Atoms and Molecules
A new experimental platform for studies of transport and quantumlimited measurements of cold, trapped atomic gases was constructed. Using microfabrication processes, a silicon wafer was micromachined to allow for deposition of micrometer-scale...
Briefs Manufacturing & Prototyping
Direct-Write Polymer Nanolithography in Ultra-High Vacuum
The deposition of materials in vacuum is the foundational technology for creating modern electronic circuits; a vacuum being essential both to preserve the cleanliness of the substrate...
Briefs Physical Sciences
Distributed Fiber Optic Sensing for Homeland Security
To address the need to protect our borders and critical infrastructure, fiber optic sensing technology developed for antisubmarine warfare applications has been adapted to homeland security...
Briefs Physical Sciences
Fatigue Crack Detection Via Load-Differential Guided Wave Methods
Guided waves (e.g., Lamb waves) have been considered for many structural health monitoring (SHM) applications because of their ability to travel long distances and maintain...
Briefs Physical Sciences
Fuzzy Fiber Sensors for Structural Composite Health Monitoring
The onset of local damage in structures, such as delamination, cracking, and fastener loosening, can often be difficult to detect and has long-term implications on the performance...
Briefs Sensors/Data Acquisition
Development of High-Resolution Eddy Current Imaging Using an Electromechanical Sensor
An oscillating current flowing through a coil produces an oscillating magnetic field. When an electrically conducting material like a metal is brought close...
Briefs Information Technology
Universal Sparse Modeling
Sparse data models, where data is assumed to be well represented as a linear combination of a few elements from a dictionary, have gained considerable attention in recent years, and their use has led to state-of-the-art results in many signal and image processing tasks. Sparse modeling calls for constructing a succinct...
Briefs Electronics & Computers
Using High-Level Language to Implement Floating-Point Calculations on FPGAs
The scientific community is interested in using field-programmable gate arrays (FPGAs) for scientific computations because they can be targeted for specific...
Briefs Electronics & Computers
Managing Security in FPGA-Based Embedded Systems
Field-programmable gate arrays (FPGAs) combine the programmability of processors with the performance of custom hardware. As they become more common in critical embedded systems, new techniques...
Briefs Electronics & Computers
CMOS-Memristor Hybrid Nanoelectronics
The memristor is the fourth fundamental passive electronic device in addition to the resistor, capacitor, and inductor. By integrating with complementary metal oxide semiconductor (CMOS) devices, memristors show promise for development of revolutionary new nanoelectronic computing architectures with...
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