News tagged with impurities

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I-mode powers up on alcator C-mod tokamak

A key challenge in producing fusion energy is confining the plasma long enough for the ionized hydrogen to fuse and produce net power. Suppressing plasma turbulence is one approach to this, but the resulting ...

dateNov 10, 2011 in Plasma Physics
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Clean soot particle filters

The soot particle filters found on diesel vehicles are designed to ensure that no harmful particles make their way through the exhaust pipe. Often, though, the exhaust from newer-model engines is not hot enough ...

dateOct 05, 2011 in Engineering
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All that glitters is not gold

(PhysOrg.com) -- Researchers developing key new technology electronics like quantum computing or advanced detectors, as well as those studying basic material science and metal surface properties, often find ...

dateSep 29, 2011 in Condensed Matter
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Hydrogen fuel put to the test

National Physical Laboratory has developed a suite of analytical methods to detect trace-level impurities in hydrogen fuel that can affect the performance of hydrogen fuel cells – a potentially carbon-free ...

dateSep 27, 2011 in Energy & Green Tech
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Disorder is key to nanotube mystery

Scientists often find strange and unexpected things when they look at materials at the nanoscale -- the level of single atoms and molecules. This holds true even for the most common materials, such as water.

dateAug 12, 2011 in Nanomaterials
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Embracing superficial imperfections

Chemists normally work rigorously to exclude impurities from their reactions. This is especially true for scanning tunneling microscopy (STM) experiments that can produce atomic-scale images of surfaces. Using ...

dateJul 01, 2011 in Materials Science
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Lowering the color of crystals in sugar factories

Like diamonds, sugar crystals ideally are very pure and low in color. Now studies led by U.S. Department of Agriculture (USDA) chemist Gillian Eggleston have provided a better understanding of the source of undesirable color ...

dateJun 23, 2011 in Biotechnology
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Advanced instrument used to read cells' minds

Researchers at the Stanford University School of Medicine have taken a machine already in use for the measurement of impurities in semiconductors and used it to analyze immune cells in far more detail than ...

dateMay 05, 2011 in Biochemistry
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