Works (5)

Updated: April 11th, 2023 10:13

2012 journal article

Portable Emission Measurement System for Emissions of Passenger Rail Locomotives

TRANSPORTATION RESEARCH RECORD, (2289), 56–63.

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

Sources: Web Of Science, ORCID
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 n & H. Choi

Sources: Web Of Science, ORCID
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 n

Sources: Web Of Science, ORCID
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 and Technology, 44(9), 3601–3607.

By: H. Choi & H. Frey n

Sources: NC State University Libraries, ORCID
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 n

author keywords: Speed correction factor; Segment emissions; Near-roadway; Air quality study
Sources: Web Of Science, ORCID
Added: August 6, 2018