Topics

Environment

Briefs : Test & Measurement
Real-Time Airborne Particle Analyzer

Particle analysis is useful for determining chemical compositions in a wide range of disciplines, from ascertaining the source of a petroleum sample to duplicating a fragrance. The technique is appealing...

Briefs : Electronics & Computers
Hybrid Controller for Multiple Energy Storage Devices

A new hybrid energy storage controller is designed for a centralized control system that operates multiple energy storage devices (ESDs) and distributed generators to provide energy and...

Briefs : Green Design & Manufacturing
OFFSET: A Global Carbon Cycle Game

The OFFSET video game was designed to teach children the basics of the carbon cycle in a fun and engaging way. The game play is a mix of Pong, Breakout, and RTS. The game has a retro-art style, and uses Game Center, so that players can compare scores with each other.

Briefs : Data Acquisition
Integrated Ultra-Wideband Tracking and Carbon Dioxide Sensing System

Recent findings indicate that frequent, short-term crew exposure to elevated CO2 levels, combined with other physiological impacts of microgravity, may lead to a...

Briefs : Green Design & Manufacturing
Gas Biosensors “See” Through Soil to Analyze Microbial Interactions

Gas biosensors have been developed that “see” into soil and follow the behavior of the microbial communities in the soil. Genetically engineered bacteria was used...

Briefs : Green Design & Manufacturing
Crystallization Method for Carbon Capture from Ambient Air

A method to capture carbon dioxide directly from ambient air offers a new option for carbon capture and storage strategies to combat global warming.

Briefs : Green Design & Manufacturing
Reducing Moisture in Natural Fibers

Biological transformation focuses on the sustainable use of biological resources such as plants or microorganisms. In the future, it is expected to reduce reliance on fossil fuels such as oil, coal, or gas, and help tackle major challenges such as climate change and global population growth. It offers options...

Briefs : Energy
Bi-Directional Energy Cascades and the Origin of Kinetic Turbulence in the Solar Wind

The kinetic turbulence of solar wind originates in the solar corona. The solar wind carries the fluctuations and escapes from the corona along the open magnetic field lines, and enters into the interplanetary space. The energy exchange among waves and particles...

Briefs : Green Design & Manufacturing
Protein Mat Soaks Up Chemical Pollution

Despite years of effort to stabilize proteins outside of their native environments, scientists have made limited progress in combining proteins with synthetic components like fibers without...

Briefs : Materials
Recyclable Polymer Exhibits Practical Properties of Plastics

A polymer was discovered that possesses many of the same characteristics as plastics, such as light weight, heat resistance, strength, and durability. But the new polymer, unlike...

Articles : Test & Measurement
Eyes in the Sky: Using Optical Filters to Observe and Measure Earth From a Different Perspective

“Measurement is the first step that leads to control and eventually to improvement. If you can’t measure something, you can’t understand...

Blog : Green Design & Manufacturing
A ‘Green’ Concrete Calls for Less Cement, More Ash
Researchers from Rice University are finding ways to use greater amounts of fly ash in an effort to build a “greener” kind of concrete.
White Papers : Materials
Improving Corrosion Resistance of 303 Stainless Steel

Able Electropolishing, a leader in the electropolishing industry, teamed up with Swiss Precision Machining Inc., to test the effectiveness of passivation vs. electropolishing on corrosion resistance of machined 303 stainless steel components.

Briefs : Electronics & Computers
Fabrication Process Produces Nanostructures for Electronic Devices

Demands for improved computer processing power have led researchers to explore both new processes and other materials beyond silicon to produce electronic components....

Briefs : Automotive
Ultra-Wide-Bandgap Power Electronics

Power electronics used for routing, control, and conversion of electrical power traditionally utilize silicon semiconductors. These systems tend to be bulky, require active cooling, and are inadequate for...

Briefs : Sensors/Data Acquisition
Ground-Based System Guides UAVs to Avoid Collisions

The Federal Aviation Administration (FAA) averages more than 100 reports a month of interactions between unmanned aircraft systems (UAS) and commercial or private planes. For UAS to fly in...

Question of the Week : Green Design & Manufacturing
Can a 'Cool' Strategy Improve Water-Purification Efforts?

Researchers from the University of Buffalo found a counter-intuitive way of improving the water-purification process: keeping things cool.

By using carbon-dipped paper to weaken light intensity, their new system increases efficiency and provides a more affordable water-treatment...

Blog : Mechanical & Fluid Systems
A New Approach to Solar-Powered Water Purification: Stay Cool
Researchers at the University of Buffalo have found a counter-intuitive way of improving the water-purification process: keeping things cool.
Briefs : Mechanical & Fluid Systems
Correlation Spectrometer

Correlation spectroscopy is an attractive technique for sensing and analysis applications because it combines the attributes of mechanical and optical simplicity, high selectivity, and good sensitivity. In...

Briefs : Software
Grid Friendly™ Charger Controller

Electric vehicles are growing in popularity, and while they represent a cleaner alternative to fossil-fueled vehicles, their increased use may stress the grid if this growing load is left unmanaged. A need...

Briefs : Energy
Nonaqueous Redox Flow Battery

Researchers have created a material that consists of carefully structured molecules designed to be particularly electrochemically stable in order to prevent the battery from losing energy to unwanted reactions....

Articles : Green Design & Manufacturing
3D-Printed Lab on Wheels

Next-generation manufacturing takes on a 50-year-old icon as ORNL researchers transform the classic Shelby Cobra sports car into a 3D-printed laboratory on wheels. Additive manufacturing enables the seamless...

Blog : Green Design & Manufacturing
Reusable ‘Oleo’ Sponge Soaks Up Oil Spills

A reusable sponge from the U.S. Department of Energy’s Argonne National Laboratory cleans up spills – not in the kitchen, but on the coast.

Blog : Automotive
How to Control Vehicle Emissions: Selective Catalytic Reduction (SCR) or Exhaust Gas Recirculation (EGR)?
What's the best platform for controlling vehicle emissions? "It depends!" says one engine expert.
Briefs : Green Design & Manufacturing
Cobalt Oxygen-Evolving Catalysts for Clean Solar Fuel

By splitting a water molecule into two atoms of hydrogen and one of oxygen, scientists can use the Sun’s energy to make a clean fuel. Splitting a water molecule requires a metal catalyst to get the reaction started. Recently, much scientific attention has focused on cobalt, a relatively...

Briefs : Green Design & Manufacturing
High-Voltage Power System for Hybrid Electric Aircraft Propulsion

Innovators at NASA’s Glenn Research Center have developed a variable-frequency, alternating current (AC) power system to enable turbo-electric and hybrid electric...

Briefs : Motion Control
Controllable Dry Adhesive for Efficient Climbing Robot

A small robot with the ability to hoist large loads could have countless applications, not only as a small, inexpensive, disposable, mobile sensor in the realms of search and rescue,...

On-Demand Webinars : Green Design & Manufacturing
Advanced Emissions Strategies for Commercial Vehicles

Understanding the complex nature of emissions from today’s high-performance, high-efficiency diesel engines is, well, complex. Oftentimes new technologies promise considerable benefits in one or more areas while bringing about significant challenges in others.

Blog : Green Design & Manufacturing
Low-Cost Smart Glass? Electrical Engineers Look into It
A switchable window – one that transforms from a clear to tinted state – is not a new invention. What is new, however, is a “smart glass” that is low-cost.
Briefs : Materials
Portable Electrochemical Sensing System

Researchers at Pacific Northwest National Laboratory (PNNL) have developed an inexpensive electrochemical sensing system that significantly improves the ability to rapidly and accurately detect heavy...