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Articles 121 - 150 of 173
Full-Text Articles in Chemistry
On-Road Remote Sensing Of Automobile Emissions In The Los Angeles Area: Year 2, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
On-Road Remote Sensing Of Automobile Emissions In The Los Angeles Area: Year 2, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
The University of Denver conducted the second year of a five year remote sensing study in the Los Angeles, CA area. The remote sensor used in this study is capable of measuring the ratios of CO, HC, and NO to CO2 in motor vehicle exhaust. From these ratios, we calculate the percent concentrations of CO, CO2, HC and NO in motor vehicle exhaust which would be observed by a tailpipe probe, corrected for water and any excess oxygen not involved in combustion. The system used in this study was also configured to determine the speed and acceleration of the vehicle, …
On-Road Remote Sensing Of Automobile Emissions In The Denver Area: Year 2, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
On-Road Remote Sensing Of Automobile Emissions In The Denver Area: Year 2, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
The University of Denver has completed the second year of a five-year remote sensing study in the Denver area. The remote sensor used in this study is capable of measuring the ratios of CO, HC and NO to CO2 in motor vehicle exhaust. From these ratios, we calculate the percent concentrations of CO, CO2, HC and NO in the exhaust that would be observed by a tailpipe probe, corrected for water and excess oxygen not involved in combustion. Mass emissions per mass or volume of fuel can also be determined. The system used in this study was configured to determine …
How To Evaluate An On-Road Remote Sensor, Donald H. Stedman
How To Evaluate An On-Road Remote Sensor, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
All on-road remote sensors or which we are aware carry out at least a measurement of the CO/CO2 ratio in the exhaust of a passing vehicle. It is possible for an interested party to carry out a quantitative evaluation of the precision of this measurement. This evaluation can be done without going to the expense and complexity of an on-road audit using a vehicle of known emissions (wet gas audit), or a vehicle designed to puff surrogate compressed gas mixtures of known ratios (dry gas audit). The measurement of exhaust CO/CO2 ratio is obtained by estimating the slope of a …
On-Road Remote Sensing Of Automobile Emissions In The Phoenix Area: Year 2, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
On-Road Remote Sensing Of Automobile Emissions In The Phoenix Area: Year 2, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
The University of Denver conducted a five-day remote sensing study in the Phoenix, AZ area in the fall of 1999. The remote sensor used in this study is capable of measuring the ratios of CO, HC, and NO to CO2 in motor vehicle exhaust. From these ratios, we calculate mass emissions per kg (or gallon) of fuel and the percent concentrations of CO, CO2, HC and NO in motor vehicle exhaust which would be observed by a tailpipe probe, corrected for water and any excess oxygen not involved in combustion. The system used in this study was also configured to …
New Epa Emissions Rule Would Cost More, Do Less To Improve Air, Donald H. Stedman
New Epa Emissions Rule Would Cost More, Do Less To Improve Air, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
Surrounding Denver Metro Smart Sign Study Summer 2000, Michael Duncan
Surrounding Denver Metro Smart Sign Study Summer 2000, Michael Duncan
Fuel Efficiency Automobile Test Publications
No abstract provided.
Risk Assessments For Chemical Stockpile Incinerators: Is The Supporting Guidance Adequate, Lawrence V. Tannenbaum
Risk Assessments For Chemical Stockpile Incinerators: Is The Supporting Guidance Adequate, Lawrence V. Tannenbaum
RISK: Health, Safety & Environment (1990-2002)
The author identifies potential deficiencies in guidance used in the United States for risk assessments of chemical weapons incinerators.
On-Road Remote Sensing Of Automobile Emissions In The Chicago Area: Year 3, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
On-Road Remote Sensing Of Automobile Emissions In The Chicago Area: Year 3, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
On-Road Remote Sensing Of Automobile Emissions In The Los Angeles Area: Year 1, Gary A. Bishop, Sajal S. Pokharel, Donald H. Stedman
On-Road Remote Sensing Of Automobile Emissions In The Los Angeles Area: Year 1, Gary A. Bishop, Sajal S. Pokharel, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
Analysis Of Remote Sensing Data For Development Of I/M Program Evaluation Protocols, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
Analysis Of Remote Sensing Data For Development Of I/M Program Evaluation Protocols, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
Rsd Versus Im240 Fleet Average Correlations, Sajal S. Pokharel, Donald H. Stedman, Gary A. Bishop
Rsd Versus Im240 Fleet Average Correlations, Sajal S. Pokharel, Donald H. Stedman, Gary A. Bishop
Fuel Efficiency Automobile Test Publications
No abstract provided.
On-Road Remote Sensing Of Automobile Emissions In The Denver Area: Year 1, Peter J. Popp, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
On-Road Remote Sensing Of Automobile Emissions In The Denver Area: Year 1, Peter J. Popp, Sajal S. Pokharel, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
On-Road Remote Sensing Of Automobile Emissions In The Phoenix Area: Year 1, Gary A. Bishop, Sajal S. Pokharel, Donald H. Stedman
On-Road Remote Sensing Of Automobile Emissions In The Phoenix Area: Year 1, Gary A. Bishop, Sajal S. Pokharel, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
Rsd Studies In Austin, 1998, Sajal S. Pokharel, Donald H. Stedman, Gary A. Bishop
Rsd Studies In Austin, 1998, Sajal S. Pokharel, Donald H. Stedman, Gary A. Bishop
Fuel Efficiency Automobile Test Publications
No abstract provided.
Remote Sensing Of Railroad Locomotive Emissions: A Feasibility Study, Peter J. Popp, Gary A. Bishop, Donald H. Stedman
Remote Sensing Of Railroad Locomotive Emissions: A Feasibility Study, Peter J. Popp, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
Identification Of Polluting Vehicles By Remote Sensing, Donald H. Stedman
Identification Of Polluting Vehicles By Remote Sensing, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
Real-Time Remote Sensing Of Snowmobiles Emissions At Yellowstone National Park: An Oxygenated Fuel Study, 1999, Jerome A. Morris, Gary A. Bishop, Donald H. Stedman
Real-Time Remote Sensing Of Snowmobiles Emissions At Yellowstone National Park: An Oxygenated Fuel Study, 1999, Jerome A. Morris, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
On-Road Remote Sensing Of Automobile Emissions In The Chicago Area: Year 2, Peter J. Popp, Gary A. Bishop, Donald H. Stedman
On-Road Remote Sensing Of Automobile Emissions In The Chicago Area: Year 2, Peter J. Popp, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
1998 Preliminary Snowmobile Emission Survey In Yellowstone National Park, Gary A. Bishop, Donald H. Stedman
1998 Preliminary Snowmobile Emission Survey In Yellowstone National Park, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
On-Road Remote Sensing Of Heavy-Duty Diesel Truck Emissions In The Austin- San Marcos Area: August 1998, Jerome A. Morris, Gary A. Bishop, Donald H. Stedman
On-Road Remote Sensing Of Heavy-Duty Diesel Truck Emissions In The Austin- San Marcos Area: August 1998, Jerome A. Morris, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
On-Road Remote Sensing Of Automobile Emissions In The Chicago Area: Year 1, Peter J. Popp, Gary A. Bishop, Donald H. Stedman
On-Road Remote Sensing Of Automobile Emissions In The Chicago Area: Year 1, Peter J. Popp, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
Final Technical Report For Its For Voluntary Emission Reduction: An Its Operational Test For Real-Time Vehicle Emissions Detection, Gary A. Bishop, Donald H. Stedman, R. Bruce Hutton
Final Technical Report For Its For Voluntary Emission Reduction: An Its Operational Test For Real-Time Vehicle Emissions Detection, Gary A. Bishop, Donald H. Stedman, R. Bruce Hutton
Fuel Efficiency Automobile Test Publications
No abstract provided.
Remote Sensing Of Commercial Aircraft Emissions, Peter J. Popp, Donald H. Stedman
Remote Sensing Of Commercial Aircraft Emissions, Peter J. Popp, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.
Development Of A High-Speed Ultraviolet Spectrometer, Capable Of Real-Time No And Aromatic Hydrocarbon Detection In Vehicle Exhaust (Presentation), Peter J. Popp, Gary A. Bishop, Donald H. Stedman
Development Of A High-Speed Ultraviolet Spectrometer, Capable Of Real-Time No And Aromatic Hydrocarbon Detection In Vehicle Exhaust (Presentation), Peter J. Popp, Gary A. Bishop, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
Paper presented at the 7th Coordinating Research Council On-Road Vehicle Emissions Workshop, San Diego, CA, April 9-11, 1997.
On-Road Co, Hc, No And Opacity Measurements (Presentation), Donald H. Stedman, Gary A. Bishop, Phillip Aldrete
On-Road Co, Hc, No And Opacity Measurements (Presentation), Donald H. Stedman, Gary A. Bishop, Phillip Aldrete
Fuel Efficiency Automobile Test Publications
Paper presented at the 7th Coordinating Research Council On-Road Vehicle Emissions Workshop, San Diego, CA, Aril 9-11, 1997.
Epa Overestimates The Benefit Of Biennial Inspection And Maintenance, Donald H. Stedman
Epa Overestimates The Benefit Of Biennial Inspection And Maintenance, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
The United States Environmental Protection Agency (EPA) computer model of mobile source emissions is used to estimate the benefits of future emissions control programs. Four input assumptions are discussed, each of which tends to overestimate the benefits of biennial testing programs. The assumptions are: each model year drives the same number of miles; high/superemitters, absent initially, increase linearly with mileage; inspection and maintenance (I/M) readings are invariant, and I/M repairs last forever. States opting for these programs should be aware that the predicted benefits may not materialize.
Carbon Monoxide Amongst Other Chemicals (Presentation), Donald H. Stedman
Carbon Monoxide Amongst Other Chemicals (Presentation), Donald H. Stedman
Fuel Efficiency Automobile Test Publications
Paper presented at the Division of Environmental Chemistry, American Chemical Society National Meeting, New Orleans, LA, March 24-28,1996.
Remote Sensing: A Simpler Way To Reduce Air Pollution, Donald H. Stedman, Gary A. Bishop
Remote Sensing: A Simpler Way To Reduce Air Pollution, Donald H. Stedman, Gary A. Bishop
Fuel Efficiency Automobile Test Publications
No abstract provided.
Vehicle Measurements For Co, Hc, And No In El Paso, Texas, And Juarez, Mexico, Donald H. Stedman, Yi Zhang, Jon M. Lesko
Vehicle Measurements For Co, Hc, And No In El Paso, Texas, And Juarez, Mexico, Donald H. Stedman, Yi Zhang, Jon M. Lesko
Fuel Efficiency Automobile Test Publications
No abstract provided.
Playing With Fire: Science And Politics Of Air Pollution From Cars, Donald H. Stedman
Playing With Fire: Science And Politics Of Air Pollution From Cars, Donald H. Stedman
Fuel Efficiency Automobile Test Publications
No abstract provided.