HEADLINES ARCHIVE
Increasing Energy Density in Lithium Batteries
When lithium batteries are charged the first time, they lose 5%-20% of their energy in that first cycle.
Lithium-Ion Battery Grows Back Together
In contrast to conventional lithium-ion batteries, the lithium compounds cannot leak out of the electrodes, either while in use or after a break.
Design for an Infinitesimal Computing Device
Key to the design is the use of a logic system called material implication logic combined with memristors.
Changing Semiconductor Properties at Room Temperature
The process may offer a path to electronically triggering changes in the properties of semiconductor materials.
Cleaner Route to Lead-acid Battery Recycling?
Pure lead is reclaimed in a water-based, room-temperature process.
Lidar to Boost Armored Vehicle Crews' Awareness
The goal is to improve the mobility and survivability of armored vehicles without adding more armor and weight.
Wirelessly Powered Drone Technology Demonstrated
The technology uses inductive coupling, a concept initially demonstrated by inventor Nikola Tesla over a century ago.
Smartwatch Prototype Uses Wrist as a Joystick
The device provides a method for one-handed continuous gestural input for smartwatches.
Non-Invasive Glucose Testing Uses Contact Lens
Glucose is a good target for optical sensing and particularly for what is known as surface-enhanced Raman scattering spectroscopy.
New York Bridge, Tunnel Upgrades Planned
Tunnels will be hardened to withstand a 500-year flood, with water-tight barriers installed to block floodwaters from entering.
Cost-Effective SiC Power Switch Developed
The power switch combines 12 smaller SiC power devices in series to reach a power rating of 15 kilovolts and 40 amps.
Brain-Inspired Device Powers Artificial Systems
An artificial neural network used memristor synapses supporting sophisticated learning rules in order to carry out reversible learning of noisy input data.
Semi-Autonomous Buses Proposed to Reduce Traffic
The SMFe-bus has a lead module with a human driver and several driverless modules strung together without being physically attached to the lead vehicle or to each other.
New Technique for Finding Weakness in Earth's Crust
The method relies on an electromagnetic imaging technique called magnetotellurics to estimate the electrical conductivity beneath the Earth's surface.
Bendable, Twistable Lithium-ion Battery Developed
Card devices, which are often carried in wallets or pockets, require internal components that can withstand bending and twisting.
Self-Charging Tag Tracks Fish for Life
The tag uses a flexible strip containing piezoelectric materials, which generate electricity through physical movement.
Graphene Audio Speakers for Mobile Devices
Conventional speakers rely on many mechanical parts that vibrate to create sound and must be encased in an acoustic cavity.
Passwords Sent Securely Through the Body
“On-body” transmissions offer a more secure way to send authenticating information between a device that touches parts of the body and one confirming identity by requiring a password be entered.
New Process for Copper Nanowires
Functional nanomaterials are notoriously difficult to produce in large volumes with highly controlled composition, shapes and sizes.
Texting Replaces Voice Communications in Airport Towers
A departure clearance using voice communications can take two to three times longer than one via Data Comm—and even longer as traffic increases.