INTERESTS

• Aerosol Mechanics
• Mathematical Modeling of Environmental Systems
• Air Pollution Control Technology especially Particulate Controls
• Optical Remote Sensing in Industrial Hygiene
• Dispersion Modeling
• Optical Properties of aerosols

EDUCATION

• Ph.D. Environmental Sciences and Engineering,
  University of North Carolina at Chapel Hill, 1988-1993
  
• M.S. Environmental Engineering.
  Virginia Polytechnic Institute and State University, 1986-1988.
  
• Bachelor of Technology, Electrical Engineering.
  Indian Institute of Technology, Bombay, India. 1982-1986
  

RESEARCH EXPERIENCE

• Assistant Professor. Division of Environmental and Occupational Health, University of Minnesota, December 1994- present
  • Development of inversion methodologies for analyzing aerosol measurements.
  • Theoretical and experimental studies on design of aerosol samplers using health-based criteria
  • Retrospective assessment of exposure to aerosols in the nickel industry
• Postdoctoral Research Associate. Department of Environmental Sciences and Engineering, April - November 1994.
  • Study of the effect of chemical composition of aerosols on their light scattering properties
  • Study of the effect of water vapor condensation on aerosol particle shape, using fractal analysis.
• Postdoctoral Research Assistant. Department of Environmental Sciences and Engineering, 1993.
  • Modeling of collection efficiency and pressure drop of oil mist collectors.
• Graduate Research Assistant. Environmental Protection Agency, Atmospheric Research and Exposure Assessment Laboratory. (1991-1992)

TEACHING EXPERIENCE

• Instructor for Air Analysis PubH 5184. University of Minnesota.
• Co-Instructor for an academic course ENVR 245: Air Pollution Control. Dept. of Environmental Sciences and Engineering, UNC. (Spring 1992, Spring 1993)
• Graduate Teaching Assistant. Dept. of Environmental Engg. Virginia Polytechnic Institute and State University (1986-1987). Statics and Fluid Mechanics.
• Graduate Teaching Assistant. Dept. of Environmental Sciences and Engg.UNC (Fall, 1992). Industrial Ventilation Laboratory.

ADMINISTRATIVE APPOINTMENTS

• Member, Teaching Committee, Division of Environmental and Occupational Health, University of Minnesota, December 1994- November 1997.
• Member, Admissions Committee, Division of Environmental and Occupational Health, University of Minnesota, November 1997-present.

PUBLICATIONS

1. "Inverse methods for analyzing classifier measurements: A critical analysis", Milind Kandlikar and Gurumurthy Ramachandran, Submitted to Journal of Aerosol Science, 1998.
2. "Particle size-selective indices of aerosol exposures of primary lead smelter workers", Terry M. Spear, Mark A. Werner, John Bootland, Erin Murray, Gurumurthy Ramachandran, Submitted to Annals of Occupational Hygiene (1997).
3. "Toward a new method for experimental determination of aerosol sampler aspiration efficiency using scaling relationships", Gurumurthy Ramachandran, Avula Sreenath, and James H. Vincent, Accepted for publication in Journal of Aerosol Science, 1998.
4. "Current issues in exposure assessment for workplace aerosols", James H. Vincent, Lisa M. Brosseau, Gurumurthy Ramachandran, Perng-Jy Tsai, Mark A. Werner, and Terry M. Spear, In: Inhaled Particles VIII *ed. Ogden, T.L.) Annals of Occupational Hygiene, 41(S1):607-614, (1997).
5. "Experimental studies of particle transport in air flows near bluff bodies, with and without aspiration", James H. Vincent, G. Ramachandran, D.Y.H. Pui, M.S.P. Gomes, S. Sato and A. Sreenath. Proceedings of the 1997 ASME Fluids Engineering Division Summer Meeting FEMSi97. American Society of Mechanical Engineers, Paper 3634,(Vancouver, June 1997).Published in CD-ROM.
6. "Experimental investigations into the nature of airflows near bluff bodies with aspiration", Avula Sreenath, Gurumurthy Ramachandran, and James H. Vincent, Atmospheric Environment,31(15):2349-2359 (1997).
7. "On the Assessment of Particle Size Distributions in Workers' Aerosol Exposures", G. Ramachandran, Mark Werner, and James H. Vincent, The Analyst,121:1225-1232 (1996).
8. "Bayesian Analysis for Inversion of Aerosol Size Distribution Data", G. Ramachandran and Milind Kandlikar, Journal of Aerosol Science, 27(7):1099-1112 (1996).
9. "Inversion Techniques for Personal Cascade Impactor Data", G. Ramachandran, Erik W. Johnson, and James H. Vincent, Journal of Aerosol Science, 27(7):1083-1097 (1996).
10. "Evaluation of two Inversion Techniques for Retrieving Health-Related Aerosol Fractions from Personal Cascade Impactor Measurements", G. Ramachandran and James H. Vincent, American Industrial Hygiene Association Journal,58:15-22 (1997).
11. "Predictions of Factors Affecting Extinction Efficiencies of Internally Mixed Aerosols Using the Reist-Wilson-MARS Program", G. Ramachandran and Parker Reist, Journal of Aerosol Science,27(7):1113-1124 (1996).
12. "Characterization of Morphological Changes in Agglomerates Subject to Condensation and Evaporation Using Multiple Fractal Dimensions", G. Ramachandran and Parker Reist, Aerosol Science and Technology, 23:431-442 (1995).
13. "Extraction of Spatial Aerosol Distributions from Multispectral Light Extinction Measurements using Computed Tomography", G. Ramachandran, David Leith, and Lori Todd. Journal of the Optical Society of America, 11(1): 144-154. (1994)
14. "Extraction of Aerosol Size Distributions from Multispectral Light Extinction Data", G.Ramachandran and David Leith. Aerosol Science and Technology ,17:303-325. (1992).
15. "Evaluation of Algorithms for Tomographic Reconstruction of Chemicals in Indoor Air", Lori Todd and G. Ramachandran. American Industrial Hygiene Association Journal, 55(5):403-417, (1994)
16. "Collection Efficiency and Pressure Drop and Pressure Drop for a Rotary-Flow Cyclone", G. Ramachandran, Peter Raynor, and David Leith. Filtration and Separation 31(6):631-636, September-October, (1994).
17. "Evaluation of Source-Detector Configurations for Tomographic Reconstruction of Chemicals in Indoor Air", Lori Todd and G. Ramachandran. American Industrial Hygiene Association Journal 55(12):1133, (1994).
18. "Evaluation of an Infrared Open Path Spectrometer using an Exposure Chamber and a Calibration Cell", Lori Todd and G. Ramachandran. American Industrial Hygiene Association Journal 56(2):151, (1995).
19. "Cyclone Optimization Based on a New Empirical Model for Pressure Drop," G.Ramachandran, David Leith, John Dirgo and Henry Feldman. Aerosol Science and Technology, 15:135-148. (1991).
20. "Chapter 5, Air Pollution: Particulate Controls", G. Ramachandran, in: Environmental Engineers' Handbook, (Ed. David H. Liu), 1997, Chilton Book Co.
21. "Measurements of the Size Distribution of Aerosols Produced by Ultrasonic Humidification", C.Rodes, T.Smith, R.Crouse and G.Ramachandran. Aerosol Science and Technology , 3:220-229. (1990).

CONFERENCE PRESENTATIONS

1. "Effect of freestream velocity and aerosol concentration profiles on aspiration efficiency of blunt samplers", American Association for Aerosol Research's Annual Meeting, Denver CO, October 1997.
2. "Assessment of Particle Size Distributions in Workers' Aerosol Exposures", American Industrial Hygiene Conference and Exposition, Dallas, TX, May 1997.
3. "Bayesian Analysis for Inversion of Aerosol Size Distribution Data", American Association for Aerosol Research's Fisteenth Annual Meeting, Orlando, FL, Octiber, 1996.
4. "Fractal Analysis of Morphological Changes in Agglomerates Subject to Condensation and Evaporation", American Association for Aerosol Research's Fourteenth Annual Meeting. Pittsburgh, PA, October 1995.
5. "Inversion of Personal Inhalable Dust Spectrometer (PIDS)", European Aerosol Conference. Helsinki, Finland, September 1995.
6. "Extraction of Spatial Aerosol Distributions from Multispectral Light Extinction Measurements using Computed Tomography", American Association for Aerosol Research's Twelfth Annual Meeting. Oak Brook, IL, October 1993.
7. "Extraction of Aerosol Size Distributions from Multispectral Light Extinction Data", American Association for Aerosol Research's Eleventh Annual Meeting. San Francisco, CA, October 1992.
8. "Reconstruction of Polydisperse Aerosol Distributions", Air and Waste Management Association's International Conference on Optical Remote Sensing and Applications to Environmental and Industrial Safety Problems. Houston, TX, April 1992.
9. "Computed Tomography and Reconstruction of Aerosol Distributions in Industrial Workplaces", Carolina Section Meeting; American Industrial Hygiene Association. Greensboro, NC, April 1990.

REPORTS AND REVIEWS

1. G. Ramachandran, "Book Review: Air Sampling Instruments for Evaluation of Atmospheric Contaminants; 8th edition", 27:664. (1996). Journal of Aerosol Science.
2. G. Ramachandran, David Leith, Peter Raynor, and Maryanne Boundy, "Performance of the Helical Dynamics Oil Mist Collector", (1993) . Report to Ford Motor Company.
3. Hughes, J. and Ramachandran G. "Quantification of respirable dust exposure of residents near coal haul roads", (1987). Report to the Hampton Roads Sanitation District.

PROFESSIONAL CERTIFICATION

Certified Industrial Hygienist, American Board of Industrial Hygiene, 1997.

ACADEMIC HONORS AND AWARDS

• Kenan Foundation Fellowship, University of North Carolina 1988-1991. Awarded for "outstanding scholarship and academic achievement" for the first three years of doctoral degree.
• Emil T. Chanlett Fellowship, School of Public Health, UNC, 1992.
• Edna Sussman Fellowship, Virginia Tech, 1987.
• Elected member, Phi Kappa Phi Honor Society, Virginia Tech, 1988
• Elected member, Sigma Xi, University of North Carolina, 1991

PROFESSIONAL SOCIETIES

• American Association for Aerosol Research
• American Industrial Hygiene Association
• American Academy of Industrial Hygiene
• American Association for the Advancement of Science

The views and opinions expressed in this page are strictly those of the page author.
The contents of this page have not been reviewed or approved by the University of Minnesota.