Fall 2000

July 6, 2000, 4:00-5:30, Thursday, Mr. Owen Duckworth, Ph.D. student, "Ligand-Promoted Dissolution of Hematite: Relationships between Surface Complexation Structures and Dissolution Rate Constants" (MS thesis work, UNC-Chapel Hill).

July 7, 2000, 4:00-5:30, Friday, Dr. Hui-Ming Hung, Postdoctoral Associate, "Sonochemistry: the mechanism and the application" (Ph.D. thesis work, Caltech).

July 11, 2000, 4:00-5:30, Tuesday, Prof. Scot Martin, "An introduction to the interesting projects of Ms. Holly Chelf and Mr. Jeong-Ho Han who are not moving to Harvard."

July 18, 2000, 4:00-5:30, Tuesday, Dr. Sherry Samson, Postdoctoral Associate, "Nonsteady state mineral dissolution: The depletion and regeneration of dissolution-active sites on Fe, Al, and In (hydr)oxides" (Ph.D. thesis work, University of Wyoming, Laramie).

July 24, 2000, 4:00-5:30, Monday, Mr. Owen Duckworth, A proposal for an interesting and important research project: To be or not to be," proposed research.

August 4, 2000, 4:00-5:30, Dr. Hui-Ming Hung, Postdoctoral Associate, "The simulation of homogeneous ice nucleation in aqueous aerosol particles containing sulfuric acid or ammonium sulfate," research.

August 25, 2000, 5:30-7:00, Friday, Ms. Young-Shin Jun, Ph.D. student, "Studies on the Adsorption Behavior of Cadmium Ion in Wastewater on Manganese Nodule and Leached Residue" (MS thesis work, Ewha Womans University in Korea).

August 28, 2000, 5:30-7:00, Monday, Mr. Jeong-Ho Han, Ph.D. student, visiting from UNC, "The Effect of Metal Oxide Inclusions on the Efflorescence Relative Humidities of Aqueous Ammonium Sulfate Particles," research.

August 31, 2000, 5:30-7:00, Thursday, Mr. Owen Duckworth, Ph.D. student, "Concerning project research plans at Harvard- The Dissolution of Calcite Family Carbonate: Linking AFM Microscopic Dissolution Rates to Flow- through dissolution rates," research.

September 15, 2000, 4:00-5:30, Friday, Dr. Hui-Ming Hung, Postdoctoral Associate, "Infrared Spectrometer-Introduction" literature.

September 18, 2000, 5:00-6:30, Monday, Dr. Sherry Samson, Postdoctoral Associate, "Nonsteady state dissolution of hematite in response to pH jumps: The role of adsorbed Fe(III)," proposed research.

September 25, 2000, 5:00-6:30, Monday, Ms. Young-Shin Jun, Ph.D. student, "Dissolution of calcite as a function of pH: An atomic force microscopic (AFM) study".

October 10, 2000, 5:00-6:30, Tuesday, Mr. Owen Duckworth, Ph.D. student, "Ex- Situ Dissolution of Hematite (001): Batch Reactor and AFM Studies" research.

October 16, 2000, 5:00-6:30, Monday, Dr. Hui-Ming Hung, Postdoctoral Associate, "Water activity as the determinant for homogeneous ice nucleation in aqueous solutions (Koop et al. Nature, 611-614, 406, 2000)," literature.

October 23, 2000, 5:00-6:30, Monday, Dr. Sherry Samson, Postdoctoral Associate, "Dissolution rates of substituted goethites and hematites as a function of the water exchange rates of the substituting metal ions," proposed research.

October 30, 2000, 5:00-6:30, Monday, Ms. Young-Shin Jun, Ph.D. student, "Reductive dissolution of goethite by phenolic reductants (Judy S.Lakind and Alan T. Stone, Geochimica et Cosmochimica Acta, 961-971, 53, 1989)," literature.

November 3, 2000, 4:00-5:30, Friday, Mr. Timm Strathmann, Ph.D. student (Stone Group, Johns Hopkins), "Reduction of Carbamate Pesticides in Anoxic Environments: Influence of Fe(II) Speciation," research.

November 6, 2000, 5:00-6:30, Monday, Mr. Owen Duckworth, Ph.D. student, "Frontiers in FTIR-ATR Spectroscopy: Surface and Aqueous Metal-Ligand Complexation," research.

November 13, 2000, 5:00-6:30, Monday, Dr. Allan Bertram, Postdoctoral Associate (Molina Group, MIT), "Heterogeneous Formation of Upper Tropospheric Ice Clouds," research.

November 20, 2000, 5:00-6:30, Monday, Dr. Hui-Ming Hung, Postdoctoral Associate, "Homogeneous Ice Nucleation in Aqueous Ammonium Sulfate Aerosol Particles," research.

November 27, 2000, 5:00-6:30, Monday, Dr. Sherry Samson, Postdoctoral Associate, "Ligand-Promoted Dissolution of Al- and Fe-Oxides: Effects of Aqueous Speciation and Rates of Water Exchange," literature and research.

December 19, 2000, 5:00-6:30, Tuesday, Mr. Owen Duckworth, Ph.D. student, "Thermodynamics of Calcite Growth: Baseline for Undrestanding Biomineral Formation (Teng et al., Science, 724-727, 282, 1998)," literature.