Latest Stories
Briefs Materials
Synthesis of Long-Chain-Branched (LCB) Polysulfones for Multifunctional Transport Membranes
Increasing numbers of technologies are based on the idea of harnessing charge transport for useful processes such as energy harvesting, actuation, and sensing. Although much progress exists based on perfluorosulfonated platforms, new and more complicated...
Briefs Materials
Temperature Effect on Drop-Weight Impact of Hybrid Woven Composites
The main idea of composite material is to combine different materials to produce a new material with performance unattainable by the individual constituents. It gives...
Briefs Manufacturing & Prototyping
Surface-Plasmon-Enhanced Organic Thin-Film Solar Cells
Fabrication of two-dimensional metal nanoparticle arrays was achieved both by thermal annealing and nanosphere lithography techniques, which are both very fast and economic. The surface plasmon resonance of the fabricated nanostructure was analyzed experimentally by optical absorption...
Briefs Materials
Shape Memory Polymer Process Development
This work introduces a simple technique of separately fabricating electrospun short fibers. This technique employs a paper mesh, which is placed between the needle tip and counter electrode of the...
Briefs Mechanical & Fluid Systems
Nonlinear, High-Fidelity, Aeroelastic Analysis for Novel Configurations
Efforts to develop morphing air vehicles with multiple mission capabilities have recently been undertaken by several research teams, including NASA’s Aircraft Morphing program and the Defense Advanced Research Projects Agency’s (DARPA) Morphing Aircraft Structures program....
Briefs Mechanical & Fluid Systems
Membrane Pump for Synthetic Muscle Actuation
A synthetic muscle has been developed that uses inflatable balloons to produce a tensile force from a positive pressurization. Mechanical supply and ducting is used to provide the required pressurization. However, the mechanical supply and ducting that is currently used is limited in several respects. To...
Briefs Materials
Tomographic Electrical Resistance-Based Damage Sensing in Nano-Engineered Composite Structures
Advanced composite materials are increasingly replacing metals in the aerospace industry as they offer weight-saving improvements such as high...
Briefs Materials
Fire Resistance of Geopolymer Concretes
Geopolymer concrete has been proposed as an alternative to Portland cement concrete in applications requiring high degrees of fire resistance, because the intrinsic chemistry of the geopolymer binder does...
Briefs RF & Microwave Electronics
Outdoor Synthetic Aperture Acoustic Ground Target Measurements
A novel outdoor synthetic aperture acoustic (SAA) system consists of a microphone and loudspeaker traveling along a 6.3-meter rail system. This is an extension of a prior indoor...
Briefs Manufacturing & Prototyping
Micro-Propulsion Devices Made of Low-Temperature Co-Fired Ceramics
In the satellite industry, the trend is towards decreasing the size of satellites and clustering of small satellites. Technological advancements in microelectronics have made it more economical to launch a cluster of satellites with a single vehicle rather than the traditional one...
Briefs Manufacturing & Prototyping
Solution Deposition Methods for Carbon Nanotube Field-Effect Transistors
Extensive research has been done on carbon nanotube field-effect transistors (CNTFETs), which may revolutionize electronics. Single-walled carbon nano-tubes (SWNTs) act as...
Briefs Mechanical & Fluid Systems
Designing a Sensorless Torque Estimator for Direct Torque Control of an Induction Motor
Induction motors often are the preferred choice among industrial motors due to the modern power electronics that improve their speed control. Vitally...
Tech Transfer Reports Materials
Polymer Coating Material Limits Computer Damage Caused by Vibrations
Cornerstone Research Group (Dayton, OH) has developed an organic, polymer-based material that can be directly applied to any circuit board — as well as other metal- and...
Briefs Materials
Templated Synthesis of Aluminum Nanoparticles for Stable Energetic Materials
Reactive nanoparticles as energetic materials have received much recent attention for a variety of existing and/or potential applications. Among more extensively...
Briefs Materials
Real-Time Intelligent Chemical and Biological Nanosensors on a Flexible Platform
The objectives of this research are to examine the feasibility of real-time sensing of chemical and biological species by using the unique materials and electronic...
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 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...
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 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...
Tech Transfer Reports Materials
Shape-Memory Material Could Improve Prosthetics
A shape-memory composite material developed for satellite antennas could prove useful in prosthetics and next-generation ski boots. The material, identified by the trade name TEMBO®, was...
Briefs Mechanical & Fluid Systems
Stability Analysis of Distributed Engine Control Systems
Full Authority Digital Engine Control (FADEC), based on a centralized architecture framework, is being widely used for gas turbine engine control. However, current FADEC is not able to...
Briefs Mechanical & Fluid Systems
Developing Fleets of Autonomous Underwater Vehicles
Autonomous underwater vehicles (AUVs) have a demonstrated capability to collect valuable data for scientific and military purposes. Historically, individual vehicles have been used. To reduce the overall time and cost of acquiring data over large areas, multiple vehicles must be used. A fleet of...
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...
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...
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
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...
Tech Transfer Reports Software
Scheduling Software Enables On-Time Aircraft Deliveries
Building next-generation aircraft may be a daunting task logistically, but using new software developed with Missile Defense Agency (MDA) funding could save manufacturers time, cost, and...
Tech Transfer Reports Data Acquisition
Web-Based Software Uses Patient Data to Diagnose Cancer
Physicians may soon be able to better prevent and more accurately diagnose breast cancer with the help of battlefield planning software designed for missile defense. Medical Information...
Briefs Software
Multi-Agent Software for Airspace Control in the Combat Zone
AGENTFLY software is part of a computer-based system technology that will enhance airspace operation, providing ever-increasing support to personnel without freeing them from the ultimate responsibility. AGENTFLY features distributed coordination mechanisms based on collective...
Top Stories
INSIDERDefense
New Raytheon and Lockheed Martin Agreements Expand Missile Defense Production
NewsAutomotive
Ford Announces 48-Volt Architecture for Future Electric Truck
INSIDERManufacturing & Prototyping
Active Strake System Cuts Cruise Drag, Boosts Flight Efficiency
ArticlesTransportation
Accelerating Down the Road to Autonomy
INSIDERMaterials
How Airbus is Using w-DED to 3D Print Larger Titanium Airplane Parts
Road ReadyTransportation
Webcasts
Electronics & Computers
Cooling a New Generation of Aerospace and Defense Embedded...
Power
Battery Abuse Testing: Pushing to Failure
Connectivity
A FREE Two-Day Event Dedicated to Connected Mobility
Automotive
Quiet, Please: NVH Improvement Opportunities in the Early Design Cycle
Transportation
Advantages of Smart Power Distribution Unit Design for Automotive &...
Aerospace
Sesame Solar's Nanogrid Tech Promises Major Gains in Drone Endurance