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Story tips From the Department of Energy's Oak Ridge National Laboratory -- May 2009
Date:5/6/2009

lations. In 2013, scientists will extract cores from the stems to evaluate differences in ethanol production. Information gained from this study may lead to the identification of genetic traits that produce high-yielding bioenergy crops and a renewable supply of biomass to help meet transportation fuel needs. Researchers noted that the use of three separate sites allows them to distinguish the genetic effects from the environmental effects in the composition and properties of the biomass. This research was funded by the Department of Energy Office of Biological and Environmental Research within the Office of Science. [Contact: Ron Walli, (865) 576-0226; wallira@ornl.gov]

FUSION -- Computational confirmation . . .

Fusion energy took a small step forward with a successful simulation performed on Oak Ridge National Laboratory's Jaguar supercomputer. A team led by C.S. Chang of New York University recently used the XGC1 code to verify that turbulence in the well-confined edge of plasma in a fusion reactor can penetrate the core and boost its temperature. While this has long been believed to be the case, this simulation provides proof and sets the stage for the next step, which would use all 150,000 cores of Jaguar and simulate the entire ITER device. The XGC1 code used 20,000 cores, consumed more than 1 million CPU hours and gathered more than 1 terabyte of data. Unlike previous codes, this one provides far greater resolution as it tracks individual particles in a given state and simultaneously simulates plasma at the edge and core. This research was funded by the Department of Energy Office of Fusion Energy and Office of Advanced Scientific Computing Research. [Contact: Ron Walli, (865) 576-0226; wallira@ornl.gov]


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Contact: Ron Walli
wallira@ornl.gov
865-576-0226
DOE/Oak Ridge National Laboratory
Source:Eurekalert

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