News
New System Transforms Communications for Airline Pilots

Under the leadership of the German Aerospace Center, a new system that will lead pilots into the digital world of the 21st century has been tested in flight trials. A single device transmits communications with the ground and via satellite, digitally at high speed. Detailed information,...

News
Network of Cameras Tracks People in Complex Indoor Settings

Carnegie Mellon University has developed a method for tracking the locations of multiple individuals in complex, indoor settings using a network of video cameras. The method was able to automatically follow the movements of 13 people within a nursing home, even though individuals...

News
Prototype Harnesses Energy from Ocean Currents

Researchers at the Universidad Politécnica de Madrid (UPM), within the framework of PROCODAC-GESMEY project, have participated in the construction of the prototype of a device to harness energy from ocean currents.

Question of the Week
Is Twitter More Valuable Than Newswires?

A University of Edinburgh study, supported by the Engineering and Physical Sciences Research Council, found that news agencies continue to have an edge over Twitter in breaking news first. Over an 11-week period, researchers compared millions of tweets to the output from major news websites. The study...

News
Apache Helicopters Get New “Eyes”

The Army is incorporating a new sensor capability into its Apache helicopters. The Apache Sensors Product Office has accepted delivery of the new Modernized Day Sensor Assembly (M-DSA) Laser Rangefinder Designator (LRFD), the first component to be fielded in the Modernized Day Sensor Assembly. The laser...

News
Tracking Moving People Through Walls Using Wi-Fi Signals

Fadel Adib and Dina Katabi of MIT have developed Wi-Vi, a new technology that can track moving people through walls and behind closed doors using Wi-Fi signals. It can determine with high accuracy up to three moving objects.

News
Blue Force Tracking System Provides Two-Way Situational Awareness

For the first time on the battlefield, maneuver and logistics forces will share situational awareness and messaging, forming a complete and seamless operational picture. The new capability, delivered by integrating the vehicle-based Movement Tracking System (MTS) into the Army's...

News
Army Harnesses Sun And Wind To Reduce Sniper Casualties

The U.S. Army is harnessing the elements to help reduce casualties from sniper attacks on forward operating bases. The U.S. Army Research, Development and Engineering Command's research laboratory and aviation missile and communications-electronics RD&E centers - the Army Research...

Briefs: Physical Sciences
Dielectrophoresis-Based Particle Sensor Using Nanoelectrode Arrays

A method has been developed for concentrating, or partly separating, particles of a selected species from a liquid or gas containing these particles, and flowing in a channel. An example of this is to promote an accumulation (and thus concentration) of the selected particle...

News
Soft, Clothing-Like Exosuit for Walking Assistance

Exoskeletons often fail to allow the wearer to perform natural joint movements, and are also generally heavy, which causes fatigue. For applications where a person only needs partial gait assistance from a robot, researchers from Harvard University's Wyss Institute researchers are pursuing the...

Briefs: Physical Sciences

In order to deliver crisp images in high-speed machine vision applications, image sensors require high-speed shuttering ability. The industry has traditionally relied on charge-coupled device (CCD) image sensors using...

Briefs: Software
ULTRA: Underwater Localization for Transit and Reconnaissance Autonomy

This software addresses the issue of underwater localization of unmanned vehicles and the inherent drift in their onboard sensors. The software gives a 2 to 3 factor of improvement over the state-of-the-art underwater localization algorithms.

Briefs: Physical Sciences
Multi-Dimensional Damage Detection for Surfaces and Structures

Current designs for inflatable or semirigidized structures for habitats and space applications use a multiple-layer construction, alternating thin layers with thicker, stronger layers, which produces a layered composite structure that is much better at resisting damage. Even though...

Briefs: Physical Sciences
Autonomous Cryogenic Leak Detector for Improving Launch Site Operations

NASA, military, and commercial satellite users need launch services that are highly reliable, less complex, easier to test, and cost effective. This project has developed a tapered optical fiber sensor for detecting hydrogen. The invention involves incorporating chemical...

Briefs: Physical Sciences
Submillimeter Planetary Atmospheric Chemistry Exploration Sounder

A report describes the Submillimeter Planetary Atmospheric Chemistry Exploration Sounder (SPACES), a highsensitivity laboratory breadboard for a spectrometer targeted at orbital planetary atmospheric analysis. The frequency range is 520 to 590 GHz, with a target noise temperature...

Briefs: Manufacturing & Prototyping

A 5×5 silicon microlens array was developed using a silicon micromachining technique for a silicon-based THz antenna array. The feature of the silicon micromachining technique enables...

Briefs: Manufacturing & Prototyping
Method for Reduction of Silver Biocide Plating on Metal Surfaces

Silver ions in aqueous solutions (0.05 to 1 ppm) are used for microbial control in water systems. The silver ions remain in solution when stored in plastic containers, but the concentration rapidly decreases to non-biocidal levels when stored in metal containers. The silver...

Briefs: Electronics & Computers
Forward-Looking IED Detector Ground Penetrating Radar

There have been many developments of mine or metal detectors based on ground penetrating radar techniques, usually in handheld or rover-mounted devices. In most mine or metal detector applications, conditions are in a stationary mode and detection speed is not an important factor.

Briefs: Electronics & Computers
Battery Charge Equalizer with Transformer Array

High-power batteries generally consist of a series connection of many cells or cell banks. In order to maintain high performance over battery life, it is desirable to keep the state of charge of all the cell banks equal. A method provides individual charging for battery cells in a large,...

Briefs: Electronics & Computers
An Efficient, Highly Flexible Multi-Channel Digital Downconverter Architecture

In this innovation, a digital downconverter has been created that produces a large (16 or greater) number of output channels of smaller bandwidths. Additionally, this design has the flexibility to tune each channel independently to anywhere in the input bandwidth to...

Briefs: Electronics & Computers
Fully Printed, Flexible, Phased Array Antenna for Lunar Surface Communication

NASA’s future exploration missions focus on the manned exploration of the Moon, Mars, and beyond, which will rely heavily on the development of a reliable communications infrastructure from planetary surface-to-surface, surface-to-orbit, and back to Earth. Flexible...

Briefs: Electronics & Computers
Dimmable Electronic Ballast for a Gas Discharge Lamp

Titanium dioxide (TiO2) is the most efficient photocatalyst for organic oxidative degradation. TiO2 is effective not only in aqueous solution, but also in nonaqueous solvents and in the gas phase. It is photostable, biologically and chemically inert, and non-toxic....

Briefs: Materials

Muon tomography has been used to seek hidden chambers in Egyptian pyramids and image subsurface features in volcanoes. It seemed likely that...

Briefs: Materials
Conductive Carbon Nanotube Inks for Use with Desktop Inkjet Printing Technology

Inkjet printing is a common commercial process. In addition to the familiar use in printing documents from computers, it is also used in some industrial applications. For example, wire manufacturers are required by law to print the wire type, gauge, and safety...

Briefs: Materials
Enhanced Schapery Theory Software Development for Modeling Failure of Fiber-Reinforced Laminates

Progressive damage and failure analysis (PDFA) tools are needed to predict the nonlinear response of advanced fiber-reinforced composite structures. Predictive tools should incorporate the underlying physics of the damage and failure mechanisms...

Briefs: Materials
High-Performance, Low-Temperature-Operating, Long-Lifetime Aerospace Lubricants

The synthesis and characterization of six new ionic liquids, with fluoroether moeties on the imidazolium ring, each with vapor pressures shown to be

Briefs: Materials
Carbon Nanotube Microarrays Grown on Nanoflake Substrates

This innovation consists of a new composition of matter where single-walled carbon nanotubes (SWNTs) are grown in aligned arrays from nanostructured flakes that are coated in Fe catalyst. This method of growth of aligned SWNTs, which can yield well over 400 percent SWNT mass per unit...

Briefs: Mechanical & Fluid Systems

This work is a method to drill into a rock surface regardless of the gravitational field or orientation. The required weight-on-bit (WOB) is supplied by a self-contained anchoring mechanism. The system...

Briefs: Mechanical & Fluid Systems

Shape memory alloy (SMA) actuators provide the highest force-to-weight ratio of any known actuator. They can be designed for a wide variety of form factors from flat, thin packages,...

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