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Back to EurekAlert! A Service of the American Association for the Advancement of Science

 

Features Archive

Showing stories 26-50 out of 355 stories.
<< < 1 | 2 | 3 | 4 | 5 | 6 > >>

4-Apr-2012
Carbon dioxide caused global warming at ice age's end, pioneering simulation shows
Climate science has an equivalent to the "what came first -- the chicken or the egg?" question: what came first, greenhouse gases or global warming? A multi-institutional team led by researchers at Harvard, Oregon State University, and the University of Wisconsin used a global dataset of paleoclimate records and the Jaguar supercomputer at Oak Ridge National Laboratory to find the answer. The results, published in the April 5 issue of Nature, analyze 15,000 years of climate history.

Contact: Dawn Levy
levyd@ornl.gov
865-576-6448
DOE/Oak Ridge National Laboratory

29-Feb-2012
Climate scientists compute in concert
Researchers at Oak Ridge National Laboratory are sharing computational resources and expertise to improve the detail and performance of a scientific application code that is the product of one of the world's largest collaborations of climate researchers. The Community Earth System Model couples components of atmosphere, land, ocean, and ice to reflect their complex interactions. By continuing to improve science representations and numerical methods in simulations, and exploiting modern computer architectures, researchers expect to further improve the CESM's accuracy in predicting climate changes.

Contact: Dawn Levy
levyd@ornl.gov
865-576-6448
DOE/Oak Ridge National Laboratory

22-Feb-2012
Big, bad bacterium is an 'iron pirate'
Life inside the human body sometimes looks like life on the high seas in the 1600s, when pirates hijacked foreign vessels in search of precious metals.

Contact: Jared Sagoff
jsagoff@anl.gov
630-252-5549
DOE/Argonne National Laboratory

11-Jan-2012
Biofuels from bacteria is biochemist's goal
Environmental proteomics does not just aid development of new biofuels but helps further understanding of the impact of climate change and the use of organisms for bioremediation.

Contact: Mary Beckman
mary.beckman@pnnl.gov
509-375-3688
DOE/Pacific Northwest National Laboratory

10-Nov-2011
Building block detectors for plants
While a plant's overall health can often be determined through simple observation, researchers sometimes need to see what's happening on the inside. That's where Jefferson Lab group leader Drew Weisenberger and his colleagues come in. They are working to develop tools that can image inside plants.

Contact: Kandice Carter
kcarter@jlab.org
757-269-7263
DOE/Thomas Jefferson National Accelerator Facility

9-Nov-2011
Researchers show how proteins help DNA replicate past a damaged site
A multi-institutional research team led by Ivaylo Ivanov of Georgia State University has employed the Jaguar XT4 supercomputer at Oak Ridge National Laboratory and X-rays a billion times brighter than the sun, produced at Lawrence Berkeley National Laboratory, to illuminate how DNA replication continues past a damaged site so a lesion can be repaired later. The results appear in the Oct. 17, 2011, online issue of Proceedings of the National Academy of Sciences.

Contact: Dawn Levy
levyd@ornl.gov
865-576-6448
DOE/Oak Ridge National Laboratory

26-Oct-2011
Berkeley Lab project in India to measure impact of pollution on cool roofs
With the aid of rooftop instruments, satellite images, an airplane and a balloon, Berkeley Lab scientists are conducting the first-ever study to determine how pollution impacts the efficacy of white roofs in cooling the planet. The yearlong project in northern India will also be the first to take physical measurements to characterize the cooling and climate effects of white roofs.

Contact: Julie Chao
JHChao@lbl.gov
510-486-6491
DOE/Lawrence Berkeley National Laboratory

15-Sep-2011
Simulating turbulent combustion speeds design of power and propulsion devices
A team led by mechanical engineers Joseph Oefelein and Jacqueline Chen of Sandia National Laboratories simulates turbulent combustion at different scales. Chen and Oefelein were allocated 113 million hours on Oak Ridge Leadership Computing Facility's Jaguar supercomputer in 2008, 2009 and 2010 to simulate autoignition and injection processes with alternative fuels. For 2011 they received 60 million processor hours for high-fidelity simulations of combustion in advanced engines.

Contact: Dawn Levy
levyd@ornl.gov
865-576-6448
DOE/Oak Ridge National Laboratory

19-Aug-2011
Supercomputers and airplanes help model hurricane structure and intensity
Information from major hurricanes such as Katrina is being put to good use by scientists striving to understand how hurricanes intensify. A research team led by Jon Reisner of Los Alamos National Laboratory is employing the Oak Ridge Leadership Computing Facility's Jaguar supercomputer to use data from lightning detectors and even wind instruments mounted on planes flown into the eye of a hurricane to improve atmospheric models. These simulations may lead to more accurate prediction of hurricane intensities.

Contact: Dawn Levy
levyd@ornl.gov
865-576-6448
DOE/Oak Ridge National Laboratory

11-Aug-2011
Tribal schools create their own biodiesel to win energy challenge
Last year, American Indian tribal colleges and high schools competed to build the best wind turbine; this year, their challenge was different, but still related to renewable energy -- creating biodiesel fuel out of raw biomass.

Contact: Eleanor Taylor
media@anl.gov
630-252-5510
DOE/Argonne National Laboratory

5-Aug-2011
Special report highlights research at America's leadership computing facilities
A special report highlights the accomplishments of researchers running large, complex, and often unprecedented simulations on Department of Energy Office of Science supercomputers.

Contact: Dawn Levy
levyd@ornl.gov
865-576-6448
DOE/Oak Ridge National Laboratory

1-Jul-2011
Buried treasure
EMSL scientist Hongfei Wang and his team recently struck a vein that could lead to research gold for scientists interested in molecular interactions at interfaces. Their picosecond-femtosecond broadband sum frequency generation system is now ready to provide a new generation of surface vibrational spectroscopy and imaging.

Contact: Mary Beckman
mary.beckman@pnl.gov
509-375-3688
DOE/Pacific Northwest National Laboratory

1-Jun-2011
Chemistry and materials simulations speed clean energy production and storage
Catalysts are just one area of investigation for a multi-institutional team whose 70 publications in 3 years detail prodigious scientific output from the world's fastest chemistry simulations. "Our long-term goal is enabling the design of new generations of clean and sustainable technologies to produce, transmit, and store energy," said team leader Robert Harrison, a computational chemist at Oak Ridge National Laboratory.

Contact: Dawn Levy
levyd@ornl.gov
865-576-6448
DOE/Oak Ridge National Laboratory

21-Apr-2011
From fork to farm
Sandia National Laboratories' food-waste composting program keeps leftovers out of the landfill.

Contact: Stephanie Holinka
slholin@sandia.gov
505-284-9227
DOE/Sandia National Laboratories

26-Jan-2011
Neutrons 'go viral' at ORNL
A research team from ORNL and North Carolina State University is using small angle neutron scattering to study how viruses change their structure when they move between different host species. Understanding how a virus reorganizes itself when it goes from a mosquito to a human is critical for the development of medicines that can block the spread of viruses.

Contact: Morgan McCorkle
mccorkleml@ornl.gov
865-574-7308
DOE/Oak Ridge National Laboratory

19-Jan-2011
Searching for a diamond in the muck
Prospecting for elusive fast-growing, oily microalgae is a soggy, muddy, rewarding job for one NREL researcher.

Contact: Bill Scanlon
303-275-4051
DOE/National Renewable Energy Laboratory

10-Dec-2010
Berkeley Lab scientist walks the walk -- produces more electricity than he consumes
Energy management engineer Steve Greenberg bikes three miles uphill to work every day, rain or shine. He refuses to use a desktop computer, insisting on a less energy-intensive laptop. And to avoid using paper towels each time he visits the bathroom, he keeps a hand towel in his office. Those are only a few of the things he does to reduce his carbon footprint—and that's just at work.

Contact: Julie Chao
JHChao@lbl.gov
510-486-6491
DOE/Lawrence Berkeley National Laboratory

6-Dec-2010
Argonne to hold annual Introduce a Girl to Engineering Day
Girls in sixth through eighth grades are invited to learn all about science and engineering during the annual Introduce a Girl to Engineering Day on Thursday, Feb. 24, 2011, at the US Department of Energy's Argonne National Laboratory.

Contact: Eleanor Taylor
etaylor@anl.gov
630-252-5510
DOE/Argonne National Laboratory

19-Nov-2010
Supercomputers assist cleanup of decades-old nuclear waste
A research team led by Peter C. Lichtner of Los Alamos National Laboratory is using the Oak Ridge Leadership Computing Facility's Jaguar supercomputer, located at Oak Ridge National Laboratory, to build a 3-D model of an underground uranium waste plume at the Hanford Site's 300 Area. A better understanding of the underground migration properties of uranium, which has infiltrated the Columbia River, may aid stakeholders in weighing options for contaminant remediation.

Contact: Dawn Levy
levyd@ornl.gov
865-576-6448
DOE/Oak Ridge National Laboratory

1-Sep-2010
Supercomputing brings the climate picture into focus
Recent advances in supercomputing have brightened the future of climate modeling, but they also bring to light complicated questions about the fundamental workings of our planet and our atmosphere.

Contact: Jared Sagoff
jsagoff@anl.gov
630-252-5549
DOE/Argonne National Laboratory

17-May-2010
NETL's green projects promise energy efficiency all year round
Forty years after the first Earth Day, it is almost second nature to toss a can or plastic bottle into the recycling bin, but being green is about much more than reusing materials. Just as individuals make a personal decision to "reduce, reuse, and recycle," businesses, industry, and other organizations are making the same commitment to being green.

Contact: Shelley Martin
shelley.martin@netl.doe.gov
304-285-0228
DOE/National Energy Technology Laboratory

31-Mar-2010
Time's rising tide may swamp Delta marshes
While marshes in the Sacramento-San Joaquin Delta area are currently keeping pace with rising sea levels, they may not be sustainable under future sea-level increases.

Contact: Anne M. Stark
stark8@llnl.gov
925-422-9799
DOE/Lawrence Livermore National Laboratory

6-Jan-2010
Argonne advanced battery research driving to displace gasoline
In excess of seven million barrels of gasoline are consumed by vehicles in the United States every day. As scientists race to find environmentally sound solutions to fuel the world's ever-growing transportation needs, battery researchers are exploring the promise of lithium-air battery technology.

Contact: Angela Hardin
media@anl.gov
630-252-5501
DOE/Argonne National Laboratory

10-Dec-2009
Probing life's extremes in Yellowstone
Frank Roberto trawls Yellowstone's thermal pools for viruses and microbes. On a recent trip to the park, he hunted for bacteria that could aid in the production of biofuels and bioplastics.

Contact: Mike Wall
208-526-0111
DOE/Idaho National Laboratory

6-Oct-2009
Conference tackles interstate transmission
The US electricity grid is strained to its limit, and the nation's windiest and sunniest places are rarely near cities that generate high demand. Finding ways to string new power lines across several states is a challenge for even the most creative regulators and energy analysts determined to increase America's use of renewable energy.

Contact: Joe Verrengia
303-275-3891
DOE/National Renewable Energy Laboratory

Showing stories 26-50 out of 355 stories.
<< < 1 | 2 | 3 | 4 | 5 | 6 > >>

 

 

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