2016 journal article
Effect of Biodiesel Fuels on Real-World Emissions of Passenger Locomotives
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 50(21), 12030–12039.
2015 journal article
Comparison of Over-the-Rail and Rail Yard Measurements of Diesel Locomotives
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 49(21), 13031–13039.
Contributors: H. Frey n n &
2014 journal article
Method for Modeling Driving Cycles, Fuel Use, and Emissions for Over Snow Vehicles
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 48(14), 8258–8265.
Contributors: J. Hu n, H. Frey n, G. Sandhu n, n, G. Bishop *, B. Schuchmann*, J. Ray*
2013 journal article
Comparison of Locomotive Emissions Measured During Dynamometer Versus Rail Yard Engine Load Tests
TRANSPORTATION RESEARCH RECORD, (2341), 23–33.
Contributors: H. Frey n n &
2011 journal article
In-Use Measurement of Activity, Energy Use, and Emissions of a Plug-in Hybrid Electric Vehicle
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 45(20), 9044–9051.
Contributors: n
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