Showing stories 151-170 out of 170 stories. <<<2 | 3 | 4 | 5 | 6 | 7
15-Jun-2007 Dust in the wind
In March 2006, a major dust storm
occurred in Niamey, Niger. Although a
common occurrence, this was the first
time both satellite- and ground-based
instruments were used simultaneously
to assess the impact of airborne Saharan
dust on incoming and outgoing solar
15-Jun-2007 On thin icege/gi
Thin clouds high in the upper troposphere, like cirrus clouds, may have a significant influence on Earth's climate and enhance the "greenhouse effect" by absorbing more of
the sun's radiation than they take in. Unknown is how ice crystals in these clouds absorb and reflect radiant energy and enhance the amount of radiant energy emitted toward the earth's surface.
15-Jun-2007 Iron nanoparticles could lead to more effectives carbon tetrachloride cleanup
Researchers at Pacific Northwest National Laboratory, the University of Minnesota and Oregon Health and Science University discovered that not all iron nanoparticles
are created equal. Some, in fact, may be especially useful for cleaning up groundwater contaminated with carbon tetrachloride.Bi%3A1181862272
14-Jun-2007 Taming the hairy mushroom
Fungi (yeasts, molds and mushrooms) have gotten a bad rap over the years. They have been blamed for infecting food crops and represent some of the most universal and costly pathogens known to man -- both of
which overshadow the important contributions fungi make, such as providing critical agricultural nutrients and compounds for antibiotics.
11-May-2007 An ancient bathtub ring of mammoth fossils
Pacific Northwest National Laboratory geologists have put out a call for teeth tusks, femurs and any and all other parts of extinct mammoths left by massive Ice Age floods in southeastern Washington.
22-Mar-2007 Balancing oil and environment... responsibly
As the price of oil continues to fluctuate
unpredictably and nears the brink of depletion,
pursuing unconventional oil supplies, such as oil
shale, oil sands, heavy oils, and oils from biomass and
coal, has become increasingly attractive. Of particular
significance to the American way is that our continent
has significant quantities of these resources.
22-Mar-2007 Biomarkers -- Transforming human health and the environment
it in the news
Anthrax discovered in the mail… SARs outbreak…
Norovirus outbreak… Potential for an avian flu
pandemic looms… Obesity and diabetes threaten
Americans' health… Demand for water on the
rise, while water quality falls. What do they have
22-Mar-2007 Digging into dirt -- Subsurface science at PNNL
Imagine drinking water that has
dripped through the sponge you've just
used to clean the breakfast dishes. This
is happening around the world. Rain
and snow pass through soil polluted
with pesticides, poisonous metals and
radionuclides into the underground
streams that supply rivers, lakes and
1-Dec-2006 A closer look at the Northwest hydro system
Pacific Northwest National
Laboratory brought together public and private utilities, technology vendors and research institutions from across the Northwest to gather insight into challenges and opportunities for the
region's power grid.
29-Nov-2006 Moving grid operations from minutes to seconds
In the last century, the electric power grid has grown from a
system that served one square mile in New York into a highlycomplex
interconnected system that serves all of North America.
Initially, individual local systems would connect to each
other to share resources and increase reliability.
17-Nov-2006 Technology improves food processing quality
Researchers at Pacific Northwest
National Laboratory have developed an
ultrasonic technology that could tell
food manufacturers if foreign objects
have fallen into their product long
before it reaches the consumer.
17-Nov-2006 Structural safety gets boost from new technology
An acoustic inspection technology
developed at Pacific Northwest National Laboratory may help users in the oil, gas and other industries decide if a metal structure can withstand normal operation. Using a newly developed ultrasonic measurement technology, PNNL
researcher Paul Panetta and his team can rapidly locate and characterize suspected damage associated with strained metal, which current technologies cannot do.
16-Nov-2006 Sometimes smaller is better
A research team from the Pacific Northwest National Laboratory, Oregon Health and Science University, University of Minnesota and the University of Idaho is studying the ability of nanoscale iron particles to reduce carbon tetrachloride, a common groundwater contaminant.
9-Nov-2006 US wind power industry tempers its 2006 forecast slightly
The American Wind Energy Association (AWEA) announced on October 24th that the U.S. wind energy industry remains on track to set a record for wind power installations this year, with U.S. wind generating capacity increasing by 2,750 megawatts (MW).
5-Oct-2006 ORNL's High Flux Isotope Reactor prepares to make 'cold' neutrons
The High Flux Isotope Reactor at the Department of Energy's Oak Ridge National Laboratory has passed a major milestone in its quest to become one of the world's leading sources of 'cold' neutrons for advanced scientific research. Once fully operational, the reactor will combine with the laboratory's Spallation Neutron Source to make Oak Ridge the world's center for neutron sciences.
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.