Keyword: Coal

Briefs: Green Design & Manufacturing
This green process produces pristine graphene in bulk using waste food, plastic, and other materials.
Articles: Mechanical & Fluid Systems

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Materials
Advanced Supported Liquid Membranes for CO‚2 Control in EVA Applications

NASA has a clear need to develop new technology in support of its future goals, including missions beyond low-Earth orbit, the possible development of lunar outposts, and the eventual exploration of Mars. As these missions develop, it is anticipated that crew members will...

Application Briefs: Medical

The Cryogenic Refuge Alternative Supply System (CryoRASS), and a smaller liquid air-filled backpack under development at NASA Kennedy Space Center’s (KSC) Biomedical Lab, have the...

Briefs: Materials
Regenerable Sorbent for CO2 Removal

A durable, high-capacity regenerable sorbent can remove CO2 from the breathing loop under a Martian atmosphere. The system design allows nearambient temperature operation, needs only a small temperature swing, and sorbent regeneration takes place at or above 8 torr, eliminating the potential for...

Briefs: Mechanical & Fluid Systems

Some simple structural modifications have been demonstrated to be effective in reducing aerodynamic drag on vehicles that have empty open cargo bays. The modifications were originally...

Articles: Energy

Renewable energy will be the world’s fastest-growing source of electricity generation over the next two decades, although it will still make up a relatively minor portion...

Briefs: Materials

Pellets made of a high-surface-area composite of silica and titania have shown promise as means of removing elemental mercury from flue gases. With further technical development...

Briefs: Materials
Making Activated Carbon by Wet Pressurized Pyrolysis

A wet pressurized pyrolysis (wet carbonization) process has been invented as a means of producing activated carbon from a wide variety of inedible biomass consisting principally of plant wastes. The principal intended use of this activated carbon is room-temperature adsorption of pollutant...

Briefs: Physical Sciences

Pilot scale experiments have demonstrated a method of reducing the amounts of oxides of nitrogen (NOx) emitted by industrial boilers and powerplant combustors that...

Briefs: Electronics & Computers
Acoustic Navigation Aid for Autonomous Miners

Miners today use externally powered machines designed to be used by a single operator, the autonomous miner. Many companies offer computer-operated mining equipment that can be used for both high wall and underground applications. Programmable logic controls with ring laser gyroscopes and...

Briefs: Robotics, Automation & Control

Research conducted at the Pittsburgh Research Center (formerly U.S. Bureau of Mines) developed technology that will allow computer-assisted operation of mechanized equipment normally used...


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