4,117 research outputs found

    Clean and Green School Buses - Reducing Fuel Use and Exposure to Diesel Exhaust

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    Making schools "greener" is not just about buildings. Transportation of students and staff to and from school is an important component of a school's environmental and greenhouse gas footprint. School buses play an important role in minimizing that footprint, but they present unique challenges and opportunities in reducing fuel use, emissions, and health impacts

    Plug-In Electric Vehicles

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    Did you know?Using electricity to power an automotive vehicle would cost the equivalent of paying less than 2.00pergallonofgasolineatcurrentelectricprices.Insomestates,thecostwouldbeunder2.00 per gallon of gasoline at current electric prices. In some states, the cost would be under 1.00 per gallon.A typical mid-size sedan, when running on electricity from the current U.S. grid, would have the same carbon footprint as a car that gets 50 miles per gallon (mpg) of gasoline. As more electricity comes from renewable sources, net carbon emissions would be reduced further. Plug-in electric vehicles could be on the market very soon

    Chiral and deconfinement phase transitions of two-flavour QCD at finite temperature and chemical potential

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    We present results for the chiral and deconfinement transition of two flavor QCD at finite temperature and chemical potential. To this end we study the quark condensate and its dual, the dressed Polyakov loop, with functional methods using a set of Dyson-Schwinger equations. The quark-propagator is determined self-consistently within a truncation scheme including temperature and in-medium effects of the gluon propagator. For the chiral transition we find a crossover turning into a first order transition at a critical endpoint at large quark chemical potential, μEP/TEP≈3\mu_{EP}/T_{EP} \approx 3. For the deconfinement transition we find a pseudo-critical temperature above the chiral transition in the crossover region but coinciding transition temperatures close to the critical endpoint.Comment: 4 pages, 4 figures. v2: minor changes, comments adde
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