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NewsApril 2009 NewsletterIn March and April NERSC increased the I/O capabilities of Franklin, added 110 terabytes of storage to the NERSC Global Filesystem, and made upgrades to NERSC's SSH software to improve security and increase the performance of data transfers. A network performance monitoring tool called PerfSONAR is being used to accelerate big geographically distributed science collabortations such as experiments at the Large Hadron Collider at CERN in Switzerland and the Daya Bay Neutrino Experiment in Southern China. [MORE] NERSC Seeks Systems Department HeadThe NERSC Systems Department Head is responsible for the introduction, integration and support of innovative technologies for high performance computing. [MORE] Now ComputingA small sample of computations taking place on NERSC supercomputers right now.
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Science @NERSCA Perfect SandwichScientists discover why the right amount of moisture in the membrane plays a key role in fuel cell efficiencyThe art of sandwich making may be far removed from the science and technology of hydrogen fuel cells, but in both cases, the amount of moisture in the sandwich is important. In a polymer electrolyte membrane (PEM) fuel cell, the electrolyte membrane is sandwiched between an anode (negative electrode) and a cathode (positive electrode). After the catalyst in the anode splits the hydrogen fuel into protons and electrons, the PEM transports the protons to the cathode, allowing the separated electrons to flow along an external circuit as an electric current. But the PEM needs the right amount of moisture for efficient proton transport — with too much or too little water, power output will drop. [Article] |
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