Asa-Awuku, Akua A - University of Maryland - Chemical and Biomolecular Engineering

个人简介

Ph.D., Georgia Institute of Technology, Chemical Egineering, 2008 Water uptake of particles; characterizing thermodynamic properties governing droplet formation for air quality, health and climate impacts Novel characterization of relevant primary and secondary organic aerosol; black carbon; chemical composition and effects on the health and the hydrological cycle Experimental investigation of the formation of cloud droplets: the activation of organic Cloud Condensation Nuclei (CCN) and its subsequent effects on climate

研究领域

Cell membrane biophysics, thermodynamics, and molecular simulations.

近期论文

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Short, D., Vu, D., Chen, V., Espinoza, C., Berte, T., Karavalakis, G., Durbin, TD and *Asa-Awuku, A. (2017). Understanding particles emitted from spray and wall-guided gasoline direct injection and flex fuel vehicles operating on ethanol and iso-butanol gasoline blends. Aerosol Science and Technology, 51(3), 330-341. Vu, D., Short, D. Z., Karavalakis, G., Durbin, T. D., & &Asa-Awuku, A. (2017). Will Aerosol Hygroscopicity Change with Biodiesel, Renewable Diesel Fuels and Emission Control Technologies? Environmental Science & Technology. Piqueras, P., Li, F., Castelluccio, V., Matsumoto, M., & *Asa-Awuku, A. (2016). Real-Time Ultrafine Aerosol Measurements from Wastewater Treatment Facilities. Environmental Science & Technology, 50(20), 11137-11144. Clark, C. H., Kacarab, M., Nakao, S., Asa-Awuku, A., Sato, K., & Cocker, D. R.(2016). Temperature effects on secondary organic aerosol (SOA) from the dark ozonolysis and photo-oxidation of isoprene. Environmental science & technology. Giordano, M. R., Chong, J., Weise, D. R., & Asa-Awuku, A. A. (2016). Does chronic nitrogen deposition during biomass growth affect atmospheric emissions from biomass burning?. Environmental Research Letters, 11(3), 034007. Asa-Awuku, A., Sorooshian, A., Flagan, R.C., Seinfeld, J.H., Nenes, A. CCN Properties of Organic Aerosol Collected Below and within Marine Stratocumulus Clouds near Monterey, California. Atmospheres (2015) 6 (11), 1590-1607 Vu, D., D. Short, G. Karavalakis; T. Durbin; and A. Asa-Awuku. Integrating Cloud Condensation Nuclei Predictions with Fast Time Resolved Aerosol Instrumentation to Determine the Hygroscopic Properties of Emissions over Transient Drive Cycles Aerosol Science and Technology. (2015) 49 (11), 1149-1159 Short, D., Vu, D., Durbin, T., Karavalakis, G., Asa-Awuku, A. "Components of Particle Emissions from Light-Duty Spark-Ignition Vehicles with Varying Aromatic Content and Octane Rating in Gasoline." Environmental Science & Technology (2015). 49 (17), pp 10682–10691 Xue, J., Li, Y., Wang, X., Durbin, T., Johnson, K.C., Karavalakis, G., Asa-Awuku, A., Villela, M., Quiros, D., Hu, S., Huai, T., Ayala, A.,Jung, H. Comparison of vehicle exhaust particle size distributions by SMPS and EEPS during steady state operating conditions. Aerosol Science and Technology (2015.) Karavalakis, Georgios, Daniel Short, Diep Vu, Robert L. Russell, Akua Asa-Awuku, Heejung Jung, Kent C. Johnson, and Thomas D. Durbin. "The impact of ethanol and iso-butanol blends on gaseous and particulate emissions from two passenger cars equipped with spray-guided and wall-guided direct injection SI (spark ignition) engines." Energy 82 (2015): 168-179. Karavalakis, Georgios, Daniel Z. Short, Diep Vu, Robert L. Russell, Maryam Hajbabaei, Akua Asa-Awuku, and Thomas D. Durbin. "Evaluating the Effects of Aromatics Content in Gasoline on Gaseous and Particulate Matter Emissions from SI-PFI and SI-DI Vehicles." Environmental science & technology, 49, 7021-7031 (2015). Short, D., Vu, D., Durbin, T., Karavalakis, G., Asa-Awuku, A. Particle Speciation of Emissions from Iso-Butanol and Ethanol Blended Gasoline in Light-Duty Spark-Ignition Vehicles. Journal of Aerosol Science. (2015): 39-52. Karavalakis, G., Short, D., Russell, R., Jung, H., Johnson, K.C., Asa-Awuku, A., Durbin, T. Assessing the Impacts of Ethanol and Iso-Butanol Impacts on Gaseous and Particulate Emissions from Flexible Fuel Vehicles. Environmental Science and Technology. 48, 14016-14024, 2014 Short, D., Giordano, M., Zhu, Y., Fine, P., Polidori, A., Asa-Awuku, A. A Unique On-line Method to Infer Water-Insoluble Particle Contributions. Aerosol Science and Technology. Vol. 48: 7 p.706-714. 9p. 2014 Tan, C.L., Gao, S., Wee, S., Asa-Awuku, A., B, T.R. Adhesion of Dust Particles to Common Indoor Surfaces in Air-Conditioned Environment. Aerosol Science and Technology. Vol. 48: 5 p.541-551. , 2014 Tang, X., Price, D., Praske, E.J., Vu, D., Purvis-Roberts, K., Silva, P., Cocker III, D.R., Asa-Awuku, A. CCN Activity of Two Aliphatic Amine Secondary Aerosol. Atmospheric Chemistry and Physics. Vol. 14: p.5959-5967. , 2014 Karavalakis, G., Short, D., Vu, D., Villela, M., Asa-Awuku, A., Durbin, T. Evaluating the regulated emissions, air toxics, ultrafine particles, and black carbon from SI-PFI and SI-DI vehicles operating on different ethanol and iso-butanol blends. Fuel. Vol. 128: p.410-421. 2014 Giordano, M., Asa-Awuku, A. Rebuttal to Correspondence on “Changes in Droplet Surface Tension Affect the Observed Hygroscopicity of Photochemically Aged Biomass Burning Aerosol”. Environmental Science and Technology. Vol. 48: 3 p.2084-2085, 2014. Kreidenweis, S., Asa-Awuku, A. Aerosol Hygroscopicity: Particle Water Content and Its Role in Atmospheric Processes. Treatise on Geochemistry 2nd Edition. Editors: H. D. Holland, K.K. Turekian. Elseiver. Oxford. Vol. 5: p.331-361, 2014 Clark, C. H. , S. Nakao, A. Asa-Awuku, K. Sato, and *D. R. Cocker. Real-time study of particle-phase products from α-pinene ozonolysis and isoprene photo-oxidation using particle into liquid sampling directly coupled to a time of flight mass spectrometer (PILS-ToF), Aerosol Sci. & Tech., p.1374-1382. 2013 Giordano, M. R., D. Z. Short, E. Hosseini, W. Lichtenberg, and A. Asa-Awuku. Changes in Droplet Surface Tension Affect the Observed Hygroscopicity of Photochemically Aged Biomass Burning Aerosol. Env. Sci. & Tech. doi:10.1021/es401867j, 2013 Tang, X., D. Price, E. Praske, S. A. Lee, M. A. Shattuck, K. Purvis-Roberts, P. Silva, A. Asa-Awuku, and D. R. Cocker III. NO3 radical, OH radical and O3- initiated secondary aerosol formation from aliphatic amines- salt formation and the effect of water vapor. Atmos. Environ. 72, 105–112, 2013 S. Nakao, P. Tang, X.Tang, C. H. Clark, L. Qi, A. Asa-Awuku, D. R. Cocker III. Density and elemental ratios of secondary organic aerosol: application of a density prediction method. Atmos. Environment, 68, 273 -277, 2013 Tang, X., Cocker III, D. R., and *Asa-Awuku, A.: Are sesquiterpenes a good source of secondary organic cloud condensation nuclei (CCN)? Revisiting β-caryophyllene CCN, Atmos. Chem. Phys., 12, 8377-8388, doi:10.5194/acp-12-8377-2012, 2012 M. Y. Khan, M. Giordano , J. Gutierrez, W. A. Welch, A. Asa-Awuku, J. W. Miller, *D. R. Cocker III, Benefits of Two Mitigation Strategies for Container Vessels: Cleaner Engines and Cleaner Fuels, Environmental Science and Technology. Environ. Sci. Technol., 2012, 46 (9), pp 5049–5056 DOI: 10.1021/es2043646