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New tool predicts economic impacts of natural gas stations

September 25, 2014 8:47 am | by Louise Lerner, Argonne National Laboratory | Comments

Researchers at the U.S. Dept. of Energy (DOE)’s Argonne National Laboratory announced a new tool for analyzing the economic impacts of building new compressed natural gas fueling stations. Called JOBS NG, the tool is freely available to the public. Mostly made up of methane, compressed natural gas is an alternative fuel for cars and trucks that can offer greenhouse gas benefits over gasoline.

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Solar explosions inside a computer

September 25, 2014 8:44 am | Comments

Strong solar flares can bring down communications and power grids on Earth. Physicists in Switzerland have examined the processes that take place when explosions occur on the Sun’s surface and have accurately reconstructed the statistical size distribution and temporal succession of the solar flares with a computer model. This has allowed them to make several new observations about the how these flares occur and behave.

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Report quantifies financial impacts of customer-sited photovoltaics on electric utilities

September 25, 2014 8:39 am | by Allan Chen, Lawrence Berkeley National Laboratory | Comments

A new report prepared by analysts from Lawrence Berkeley National Laboratory examines the potential impacts of customer-sited solar photovoltaics on electric utility profitability and rates. The report shows that these impacts can vary greatly depending upon the specific circumstances of the utility and may be reduced through a variety of regulatory and ratemaking measures.

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Live long and phosphor: Blue LED breakthrough for efficient electronics

September 25, 2014 8:36 am | Comments

Blue organic light-emitting diodes (OLEDs) are one of a trio of colors used in OLED displays such as smartphone screens and high-end TVs. In a step that could lead to longer battery life in smartphones and lower power consumption for large-screen televisions, researchers at the Univ. of Michigan have extended the lifetime of blue organic light emitting diodes by a factor of 10.

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Platelets modulate clotting behavior by “feeling” their surroundings

September 25, 2014 8:31 am | by John Toon, Georgia Institute of Technology | Comments

Platelets, the tiny cell fragments whose job it is to stop bleeding, are very simple. They don’t have a cell nucleus. But they can “feel” the physical environment around them, researchers at Emory Univ. and Georgia Tech have discovered. Platelets respond to surfaces with greater stiffness by increasing their stickiness, the degree to which they “turn on” other platelets and other components of the clotting system, the researchers found.

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Search for better biofuels microbes leads to the human gut

September 25, 2014 8:14 am | by Diana Yates, Life Sciences Editor Univ. of Illinois, Urbana-Champaign | Comments

Scientists have scoured cow rumens and termite guts for microbes that can efficiently break down plant cell walls for the production of next-generation biofuels, but some of the best microbial candidates actually may reside in the human lower intestine, researchers report. Their studyis the first to use biochemical approaches to confirm the hypothesis that microbes in the human gut can digest fiber.

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Researchers uncover structure of enzyme that makes plant cellulose

September 25, 2014 8:06 am | by Natalie van Hoose, Purdue Univ. | Comments

Purdue Univ. researchers have discovered the structure of the enzyme that makes cellulose, a finding that could lead to easier ways of breaking down plant materials to make biofuels and other products and materials. The research also provides the most detailed glimpse to date of the complicated process by which cellulose is produced.

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Biochar alters water flow to improve sand, clay

September 25, 2014 8:00 am | by David Ruth, Rice Univ. | Comments

As more gardeners and farmers add ground charcoal, or biochar, to soil to both boost crop yields and counter global climate change, a new study by researchers at Rice Univ. and Colorado College could help settle the debate about one of biochar’s biggest benefits: the seemingly contradictory ability to make clay soils drain faster and sandy soils drain slower.

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Chemists recruit anthrax to deliver cancer drugs

September 25, 2014 7:49 am | by Anne Trafton, MIT News Office | Comments

Bacillus anthracis bacteria have very efficient machinery for injecting toxic proteins into cells, leading to the potentially deadly infection known as anthrax. A team of Massachusetts Institute of Technology (MIT) researchers has now hijacked that delivery system for a different purpose: administering cancer drugs.

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Researchers develop simple, one-step method to synthesize nanoparticles

September 24, 2014 12:01 pm | Comments

Scientists at the U.S. Naval Research Laboratory have introduced a new one-step process using, for the first time in these types of syntheses, potassium superoxide to rapidly form oxide nanoparticles from simple salt solutions in water. An important advantage of this method is the capability of creating bulk quantities of these materials, more than 10 g in a single step.

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2-D materials’ crystalline defects key to new properties

September 24, 2014 11:13 am | Comments

using an aberration-corrected scanning transmission electron microscope, researchers have recently understood how defects in 2-D crystals such as tungsten disulphide can move, or dislocate, to other locations in the material. Understanding how atoms "glide" and "climb" on the surface of 2-D crystals may pave the way for researchers to develop materials with unusual or unique characteristics.

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Wind energy proposal would light Los Angeles homes

September 24, 2014 10:59 am | by Michael R. Blood and Mead Gruver, Associated Press | Comments

Finding an economical way to store renewable energy from wind or the sun has proved challenging. An alliance of four companies say they have found an answer and are proposing an $8 billion power project that would start with turbines on a huge wind farm in Wyoming and end with enough electricity for over 1 million households in Southern California. The key link is an underground energy storage site carved out of a massive salt formation.

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Nanotechnology leads to better, cheaper LEDs for phones and lighting

September 24, 2014 10:57 am | by John Sullivan, Princeton Univ. | Comments

Princeton Univ. researchers have developed a new method to increase the power and clarity of light-emitting diodes (LEDs). Using a new nanoscale structure made from flexible carbon-based sheet, the researchers increased the brightness and efficiency of LEDs made of organic materials by 57%.

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Tonsil stem cells could someday help repair liver damage without surgery

September 24, 2014 10:56 am | Comments

The liver provides critical functions, such as ridding the body of toxins, but its failure can be deadly, and there are few options for fixing it. A promising alternative in development is transplanting liver cells made using adult stem cells, but the only source identified until now has been bone marrow. Recently, scientists identified another, more convenient, source of adult stem cells that could be used for this purpose:tonsils.

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Low-cost, “green” transistor heralds advance in flexible electronics

September 24, 2014 10:02 am | Comments

As tech company LG demonstrated this summer with the unveiling of its 18-in flexible screen, the next generation of roll-up displays is tantalizingly close. Researchers are now reporting a new, inexpensive and simple way to make transparent, flexible transistors that could help bring roll-up smartphones with see-through displays and other bendable gadgets to consumers in just a few years.

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