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Post-Lithium Technology

High-energy-density polymeric cathode for fast-charge sodium- and multivalent-ion batteries

06-Nov-2019

Next-generation batteries will probably see the replacement of lithium ions by more abundant and environmentally benign alkali metal or multivalent ions. A major challenge, however, is the development of stable electrodes that combine high energy densities with fast charge and discharge rates. In ...

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A different spin on superconductivity

Unusual particle interactions open up new possibilities in exotic materials

11-Apr-2018

When you plug in an appliance or flip on a light switch, electricity seems to flow instantly through wires in the wall. But in fact, the electricity is carried by tiny particles called electrons that slowly drift through the wires. On their journey, electrons occasionally bump into the material's ...

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Method for designing fusion experiments improved

Established method for shaping stellarator magnets receives critical update

14-Feb-2017

"Measure twice, cut once" is an old carpenter's proverb--a reminder that careful planning can save time and materials in the long run. The concept also applies to the design of stellarators, which are complex nuclear fusion experiments meant to explore fusion's potential as an energy source. ...

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Solar smart window could offer privacy and light control on demand

18-Nov-2016

Smart windows get darker to filter out the sun's rays on bright days, and turn clear on cloudy days to let more light in. This feature can help control indoor temperatures and offers some privacy without resorting to aids such as mini-blinds. Now scientists report a new development in this ...

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Hydrocarbon storage, fracking and lightning risk

16-Mar-2016

Fires caused by lightning strikes on hydrocarbon storage plants are a century-old, yet to be addressed, problem. In the era of hydraulic fracturing, or fracking, this is becoming an even more poignant issue for the fossil fuel industry. Sterling Rooke of X8 Inc in Crofton, Maryland, and Miroslaw ...

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Discovery could enable portable particle accelerators

09-Nov-2015

Conventional particle accelerators are typically big machines that occupy a lot of space. Even at more modest energies, such as that used for cancer therapy and medical imaging, accelerators need large rooms to accommodate the required hardware, power supplies and radiation shielding. A new ...

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Twisting neutrons

25-Sep-2015

It's easy to contemplate the wave nature of light in common experience. White light passing through a prism spreads out into constituent colors; it diffracts from atmospheric moisture into a rainbow; light passing across a sharp edge or a diffraction grating creates an interference pattern. It's ...

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Evidence suggests subatomic particles could defy the standard model

Large Hadron Collider team finds hints of leptons acting out against time-tested predictions

31-Aug-2015

The Standard Model of particle physics, which explains most of the known behaviors and interactions of fundamental subatomic particles, has held up remarkably well over several decades. This far-reaching theory does have a few shortcomings, however - most notably that it doesn't account for ...

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Economic slump, not natural gas boom, responsible for drop in CO2 emissions

23-Jul-2015

The 11 percent decrease in climate change-causing carbon dioxide emissions in the U.S. between 2007 and 2013 was caused by the global financial recession - not the reduced use of coal, research from the University of California Irvine, the University of Maryland, and the International Institute ...

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New materials discovered to detect neutrons emitted by radioactive materials

06-Mar-2015

Scientist Christopher Lavelle of the Johns Hopkins University Applied Physics Laboratory, together with a team of researchers from the University of Maryland and the National Institute of Standards and Technology, has successfully shown that boron-coated vitreous carbon foam can be used in the ...

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