Transportation

Briefs : Mechanical & Fluid Systems
Self-Lubrication Improves Standard Braking Systems

By mixing carbon fibers into polymer-based brakes, researchers designed brakes that are self-lubricating. These new and improved brakes can prevent wear-and-tear and have better frictional...

Briefs : Materials
Directly Cooled Electric Motor Made from Polymer Materials

Making electric cars lighter also involves reducing the weight of the motor. One way to do that is by constructing it from fiber-reinforced polymer materials. A new cooling concept...

Briefs : Transportation
Synthesizing Renewable Oils for Use in Lubricants

Industrial machinery, agricultural equipment, transportation vessels, and home applications depend on lubricants; however, they leave a heavy environmental footprint. Common lubricants, oils,...

Briefs : Automotive
Rechargeable, High-Temperature, Molten Salt Battery

Growing demand for electric vehicles and more sustainable forms of transport means finding new forms of energy storage such as batteries, supercapacitors, and fuel cells. Currently, a major challenge facing the industry is the poor performance quality of rechargeable batteries, which often lose...

Briefs : Transportation
System Enables Direct Data Transmission Between Underwater and Airborne Devices

Today, underwater sensors cannot share data with those on land, as both use different wireless signals that only work in their respective mediums. Radio signals that travel through air die very rapidly in water. Acoustic signals, or sonar, sent by underwater devices...

Briefs : Lighting
Text Tech: Navy Vessels Use Shipboard Signal Lamps for Text Messaging

Sponsored by the Office of Naval Research's (ONR) TechSolutions program, the Flashing Light to Text Converter (FLTC) features a camera that can be mounted atop a signal...

Briefs : Sensors/Data Acquisition
New Engine Optics to Fuel Future Research

An optical setup developed by researchers at Sandia's Combustion Research Facility and the Technical University of Denmark can now quantify the formation of soot — particulate matter consisting...

Briefs : Imaging
Precision Low-Speed Motor Controller

Innovators at NASA Johnson Space Center have developed a method for controlling precise motion of a brushless DC (BLDC) motor using relatively inexpensive components. Precision motors are usually quite expensive and inefficient when operating at slow speeds. Current motors are only capable of operating at...

Briefs : Transportation
Airborne Machine Learning Estimates for Local Winds and Kinematics

Future Unmanned Aerial Systems (UAS) and air taxis will require advanced onboard autonomy to operate safely within complex and dynamic urban environments. Urban landscapes...

Briefs : Aerospace
Effects of Reynolds and Mach Numbers in Large Eddy Simulation of Supersonic Round Jets

Rockets/landers arrive on the Moon with supersonic speed and impact lunar regolith. There is no reliable software to computationally simulate in an effective way the supersonic plumes escaping from these rockets/devices. A Large Eddy Simulation (LES) model and...

Briefs : Transportation
Generative Design Enhances Autonomous Vehicle Development

The technological ramp to fully autonomous vehicles presents significant challenges for companies developing autonomous vehicle programs. Advanced sensor technology, high-speed and...

Briefs : Aerospace
Resin Transfer Molding (RTM) 370 Resin for High-Temperature Applications

RTM370 imide resin was developed to address the limitations of conventional imide resins, which are generated from commercially available symmetrical biphenyl...

Briefs : Materials
Optically Transparent Polyimide Aerogels

Innovators at NASA's Glenn Research Center have expanded their growing portfolio of aerogels to include a new optically transparent polyimide aerogel. Aerogels — low-density, highly porous,...

Briefs : Test & Measurement
Device Measures Laser Power in Real Time

Lasers play roles in many manufacturing processes, from welding car parts to crafting engine components with 3D printers. To control these tasks, manufacturers must ensure that their lasers fire at...

Briefs : Materials
Compound-Lens Camera for Industry and Smartphones

A process has been developed that enables the production of a 2-mm flat camera. The lens is partitioned into 135 tiny facets, similar to the eyes of an insect. The facetVISION camera is...

Briefs : Electronics & Computers
High-Power-Density Solid Oxide Fuel Cell

NASA's Glenn Research Center has developed a novel solid oxide fuel cell (SOFC) with five times the specific power density of currently available SOFCs. This highly efficient SOFC can operate on a...

Briefs : Transportation
Device Detects Subatomic-Scale Motion

It is relatively easy to measure small movements of large objects, but is much more difficult when the moving parts are on the scale of nanometers, or billionths of a meter. The ability to accurately...

Briefs : Mechanical & Fluid Systems
Submarine Swims Without an Engine

Researchers have developed a new propulsion concept for swimming robots that exploits temperature fluctuations in the water for propulsion without the need for an engine, propellant, or power supply.

Briefs : Photonics/Optics
Photonic Communication Comes to Computer Chips

With novel optoelectronic chips and a new partnership with a top silicon-chip manufacturer, MIT spinout Ayar Labs aims to increase speed and reduce energy consumption in computing, starting with...

Briefs : Automotive
Evaluating Effects of Exhaust Heat Recovery Systems on Fuel Economy and Emissions

The exhaust heat recovery system (EHRS) in an automobile captures the thermal energy from exhaust and transfers it to the engine coolant. As the car warms up,...

Briefs : Aerospace
Air Traffic Management (ATM) System

As the demand for air transportation increases, the capacity of the current U.S. ATM system will eventually be stressed to its limits. New technologies in communication, navigation, and surveillance (CNS),...

Briefs : Test & Measurement
Active Measurement Cancellation

A battery pack is only as strong as its weakest cell. As battery packs become larger and more integral to the stable operation of devices and systems, the need to monitor battery dependability and performance...

Briefs : Test & Measurement
Direct-Current Detector for Emergency Responder Safety

The Department of Energy's Oak Ridge National Laboratory has developed a direct-current detector technology to help emergency responders safely detect high voltages, which they have...

Briefs : Medical
Realization of High-Performance Magnetic Sensors Using Magnetic Vortex Structures

Magnetic sensors play a key role in a variety of applications, such as speed and position sensing in the automotive industry and in biomedical applications....

Briefs : Photonics/Optics
Method 3D-Prints Marine-Grade Stainless Steel

Marine-grade stainless steel is valued for its performance under corrosive environments, and for its high ductility — the ability to bend without breaking under stress. But conventional...

Briefs : Electronics & Computers
Water-Repellent Nanotextures Possess Anti-Fogging Capability

Some insect bodies have evolved the ability to repel water and oil, adhere to different surfaces, and eliminate light reflections. Scientists have been studying the physical mechanisms underlying these properties found in nature and mimicking them to design materials for use in...

Briefs : Electronics & Computers
Electrode Design Boosts Supercapacitor Performance

Supercapacitors are rechargeable energy storage devices that deliver more power for their size than similar-sized batteries. They also recharge quickly, and they last for hundreds to thousands of recharging cycles. Today, they are used in hybrid cars’ regenerative braking systems and for other...

Briefs : Mechanical & Fluid Systems
Polymer Membrane Separators for Next-Generation Energy-Water Systems

Polymer membrane separators play a crucial function in many energy and water technologies including energy storage, hydrogen generation through water electrolysis, and...

Briefs : Sensors/Data Acquisition
Composite Panel with Integrated Thermal Control

Technological advancements in materials, sensors, and computing have driven demand for higher-performance satellites. Satellites need to be much more capable in a much smaller size with a...

Briefs : Data Acquisition
See Objects Hidden Around Corners

A driverless car is making its way through a winding neighborhood street, about to make a sharp turn onto a road where a child’s ball has just rolled. Although no person in the car can see that ball, the...

Technology Leaders