Works (5)

Updated: July 5th, 2023 15:49

2012 journal article

Portable Emission Measurement System for Emissions of Passenger Rail Locomotives

TRANSPORTATION RESEARCH RECORD, (2289), 56โ€“63.

By: H. Freyโ€‰ n, H. Choi n & K. Kim n

co-author countries: United States of America ๐Ÿ‡บ๐Ÿ‡ธ

Contributors: H. Freyโ€‰ n

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), 9044โ€“9051.

By: B. Graver n, H. Freyโ€‰ n & H. Choi n

co-author countries: United States of America ๐Ÿ‡บ๐Ÿ‡ธ

Contributors: B. Graver n

MeSH headings : Air Pollutants / analysis; Electric Power Supplies; Electricity; Environmental Monitoring; Gasoline; Vehicle Emissions / analysis
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), 19โ€“27.

By: H. Choi n & H. Freyโ€‰ n

co-author countries: United States of America ๐Ÿ‡บ๐Ÿ‡ธ

Contributors: H. Choi 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), 3601โ€“3607.

By: H. Choi n & H. Freyโ€‰ n

co-author countries: United States of America ๐Ÿ‡บ๐Ÿ‡ธ

Contributors: H. Choi n

MeSH headings : Air Pollutants / analysis; Automobile Driving; Electricity; Environmental Monitoring / methods; Gasoline / analysis; Humans; Motor Vehicles; Transportation; Vehicle Emissions / analysis
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), 610โ€“614.

By: H. Choi n & H. Freyโ€‰ n

co-author countries: United States of America ๐Ÿ‡บ๐Ÿ‡ธ

Contributors: H. Choi n & H. Christopher Freyโ€‰ n

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

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