OSAR 2025 Presentations

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Day - 1

Presentation By	link
1.1 Tom Durbin	The Role of OSAR in moving Towards a Sustainable Transportation Future
1.2 Ricardo Suarez Bertoa	NOx measurements during the Periodic Technical Inspection (PTI)
1.3 Carl Fulper	Efforts to Identify and Quantify the Prevalence and Emissions Impact of Medium- and Heavy-Duty Vehicles
1.4 Chris Sharp	Investigation of NOX Sensor Measurement Errors and Potential Methods of Correction
1.5 Carl Desouza	Particle Size Distribution
1.6 Karl Ropkins	THE RDE AND THE REAL-WORLD: A DIESEL HYBRID/ADVANCED BIOFUEL/PEMS CASE STUDY
1.7 Georges Saliba	A Study of Energy Consumption Differences Between Heavy-Duty Battery Electric and Conventional Transit Buses
1.8 Yang Li	Emission Measurement with NOx Sensors in the Presence of HC’s & H2
1.9 Grace Johnson	Preliminary Results of Sensor Based Onboard Sensing Analysis And Reporting from Fleets During a Two Month Timeframe
1.10 Imad Khalek	Effect of Fuels on Compression Ignition Engine Particle Number, Size Distribution and DPF Filtration Efficiency
1.11 Joshua Israel	Ultra-Low NOx Measurement Utilizing Advanced Infrared Techniques
1.12 Joshua Orlando	Data-Driven Insights for Heavy Duty Fleet Emissions
1.13 Yucheng He	Development of a Heavy-Duty Vehicle Emissions Inventory with High Spatial Resolution for Community-Level Analysis

Presentation By	Link
2.1 Carl Ensfield	PEMS Updates: Ultra-low NOx and NH3 Measurements
2.2 Ehsan Soleimanian and Axel Freund	Mobile Hydraulic Dynamometer (MoHyD) Testing on Off-Road Equipment
2.3 Daisy Thomas	Investigating the performance of the FLEX-PNC diffusion charger PN and PM measurement system
2.4 Zisimos Toumasatos	Review of CE-CERT’s Brake and Tire Programs
2.5 Okjoo Park	Assessment of Energy Recuperation and Brake-Wear Particulate Matter Emissions Over Chassis Dynamometer Test Cycles
2.6 Lia Dam	Numerical Analysis of Heavy-Duty Vehicle Activity and Brake-Wear PM Emissions to Assess Potential PM Reductions from Battery Electric Vehicles
2.7 Elizabeth DeFrance	Light-Duty Vehicle Tire-Wear Particle Emissions
2.8 Kent Johnson	Exposure Studies Utilizing Low and High cost data: Future Regulations