Works (5)

2012 journal article

Portable emission measurement system for emissions of passenger rail locomotives

Transportation Research Record, (2289), 56–63.

By: H. Frey, H. Choi & K. Kim

Source: NC State University Libraries
Added: August 6, 2018

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.

By: B. Graver, H. Frey & H. Choi

Source: NC State University Libraries
Added: August 6, 2018

2010 journal article

Estimating diesel vehicle emission factors at constant and high speeds for short road segments

Transportation Research Record, (2158), 19–27.

By: H. Choi & H. Frey

Source: NC State University Libraries
Added: August 6, 2018

2010 journal article

Method for in-use measurement and evaluation of the activity, fuel use, electricity use, and emissions of a plug-in hybrid diesel-electric school bus

Environmental Science & Technology, 44(9), 3601–3607.

By: H. Choi & H. Frey

Source: NC State University Libraries
Added: August 6, 2018

2009 journal article

Light duty gasoline vehicle emission factors at high transient and constant speeds for short road segments

Transportation Research. Part D, Transport and Environment, 14(8), 610–614.

By: H. Choi & H. Frey

Source: NC State University Libraries
Added: August 6, 2018