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NRC Associateships Program Directory
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| Name: | Keesee, Robert George | | | Award Information | | Year of Award: | 1979 | | Start Year: | 1979 | | Program | National Aeronautics and Space Administration | | Center: | Ames Research Center | | Division: | Astronomy & Astrophysics | | Adviser: | Robert C. Whitten | | | Education | | Degree Field: | Physical Chemistry | | Degree Institution: | University of Colorado | | Degree: | PHD | | | Current Information | | Employment title: | Associate Professor of Atmos. Sci. and Chemistry | | Employer: | State University of New York at Albany | | Employment City: | Albany | | Employment State: | NY | | Employment Country Name: | United States | | Work Phone: | (518) 442-4566 | | Email Address: | rgk@atmos.albany.edu (internet) | | Employment sector: | 4 Year College or University | | Research Interests: | Research Interests:
Chemistry of planetary atmospheres, atmospheric aerosols and ions. Gas-to-particle conversion, nucleation phenomena, gas-surface interactions.
Our research approach involves experimental investigation in the laboratory of fundamental processes. We are developing methods to study heterogeneous nucleation and condensation on aerosol particles, the processes of chemical aging of aerosol particles, and the effects of aging on the properties of aerosol particles. The experimental system being developed to scrutinize these processes involves the combination of electric levitation of single particles with thermal gradient diffusion and optical detection techniques. The electric levitation technique is a variation of the well-known Millikan oil drop experiment and allows the experimenter to interrogate a single micron-sized particle for extended periods that can be comparable to the residence time of a particle in the atmosphere. The thermal gradient diffusion technique creates a steady supersaturated environment for study of vapor-to-liquid nucleation. |
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